JP7680792B2 - Sales data processing device and program - Google Patents

Description

The present invention relates to a sales data processing device and a program.

Convenience stores, supermarkets, etc. generally have multiple sales data processing devices (e.g. POS registers). For example, some identify products based on the characteristics of an image of the product, and a POS terminal has been proposed that displays a product selection button (preset screen) for the corresponding product when multiple candidates are generated based on the characteristics of the image of the product, allowing the operator to select and identify the product (see, for example, Patent Document 1).

JP 2017-058977 A

However, POS devices that identify products based on the characteristics of captured images of items can make it difficult for store clerks and customers to register products appropriately.

The present invention was made in consideration of these circumstances, and its purpose is to provide technology that can optimally support product registration.

In order to solve the above-mentioned problems, a sales data processing device which is one aspect of the present invention comprises a customer registration means for registering products in response to a customer's operation, a store clerk registration means for registering products in response to a store clerk's operation, a product display selection means for displaying an area indicating products and accepting product selection, an imaging means for imaging a target product including product features or a symbol code affixed to the product, a first product identification means for identifying a product based on the features imaged by the imaging means, and a second product identification means for identifying a product based on the symbol code imaged by the imaging means, wherein the customer registration means registers the product identified by the first product identification means when a product is not identified by the second product identification means , and the store clerk registration means registers the product identified by the second product identification means or the product selected by the product display selection means.

The above configuration can effectively assist store clerks and customers in registering products.

In the above-mentioned sales data processing device, the customer registration means may register a product accepted by the product display selection means when a product is not identified by the first product identification means and the second product identification means.

The above configuration can effectively assist customers in registering products.

In the above-mentioned sales data processing device, the store clerk registration means may register the product identified by the first product identification means when the product is not identified by the second product identification means and the product display selection means does not accept the product.

The above configuration can effectively assist store clerks in registering products.

In the above-mentioned sales data processing device, the store clerk registration means may, under a predetermined condition, when a product is not identified by the second product identification means, register the product by prioritizing product identification by the first product identification means over product acceptance by the product display selection means.

The above configuration can effectively assist store clerks in registering products.

In the above-mentioned sales data processing device, the customer registration means may register a product identified by the first product identification means when a first period has elapsed during which a product is not identified by the second product identification means, and the store clerk registration means may register a product accepted by the product display selection means when a second period different from the first period has elapsed during which a product is not identified by the second product identification means.

The above configuration can effectively assist store clerks and customers in registering products.

In the above-mentioned sales data processing device, the first period and the second period may be set for each operator.

The above configuration can effectively assist store clerks and customers in registering products.

In the above-mentioned sales data processing device, the product display selection means may display the area in a different display mode when a product is registered by the customer registration means and when a product is registered by the store clerk registration means, and accept the selection of a product.

The above configuration can effectively assist store clerks and customers in registering products.

The sales data processing device may further include a mode setting means for setting either a first mode or a second mode different from the first mode, and the customer registration means may enable product registration when the first mode is set by the mode setting means, and the store clerk registration means may enable product registration when the second mode is set by the mode setting means.

The above configuration can effectively assist in registering products according to the mode.

In order to solve the above-mentioned problems, another aspect of the present invention is a program that causes a computer to function as a sales data processing device, and includes a customer registration means for registering products in response to a customer's operation, a store clerk registration means for registering products in response to a store clerk's operation, a product display selection means for displaying an area indicating products and accepting product selection, an imaging means for imaging a target product including product features or a symbol code attached to the product, a first product identification means for identifying a product based on the features imaged by the imaging means, and a second product identification means for identifying a product based on the symbol code imaged by the imaging means, wherein the customer registration means registers the product identified by the first product identification means when a product is not identified by the second product identification means, and the store clerk registration means registers the product identified by the second product identification means or the product for which the product display selection means has accepted a selection , and is characterized in that it causes the computer to function as follows .

In order to solve the above-mentioned problems, a sales data processing system according to another aspect of the present invention is a sales data processing system including a terminal device and a management device that manages the terminal device, the terminal device includes a product display selection means that displays an area showing products and accepts product selection, an imaging means that images a target product including a product feature or a symbol code attached to the product, and a terminal communication means that transmits a product selection result showing the product accepted by the product display selection means and an imaging result captured by the imaging means to the management device, and the management device includes a management communication means that receives the product selection result and the imaging result from the terminal device, and a customer registration means that registers products in response to a customer's operation. a clerk registration means for registering a product in response to operation by a clerk, a first product identification means for identifying a product based on the features included in the imaging result, and a second product identification means for identifying a product based on the symbol code included in the imaging result, wherein the customer registration means registers the product identified by the first product identification means when a product is not identified by the second product identification means, the clerk registration means registers the product identified by the second product identification means or the product indicated by the product selection result, and the management communication means transmits information regarding the products registered by the customer registration means or the clerk registration means to the terminal device.

As described above, the present invention can effectively assist store clerks and customers in registering products.

1 is a network configuration diagram of a POS system according to an embodiment of the present invention. FIG. 1 is a diagram showing an example of installation of a POS terminal. FIG. 2 is a diagram showing an example of the appearance of a POS terminal. FIG. 2 is a diagram illustrating an example of the configuration of a POS terminal. FIG. 2 is a diagram for explaining an outline of operation modes of the POS terminal. FIG. 10 is a diagram illustrating switching of the operation mode of the POS terminal. FIG. 4 is a schematic diagram for explaining an outline of operation in a normal mode. 10 is a flowchart outlining an operation in a normal mode. FIG. 4 is a schematic diagram for explaining an outline of operation in a normal mode. 10 is a flowchart for explaining an outline of an operation in a normal mode. FIG. 13 is a schematic diagram for explaining an outline of the operation in a full self mode. 10 is a flowchart outlining an operation in a full self mode. FIG. 11 is a schematic diagram for explaining an outline of the operation in a double scan mode. 11 is a flowchart outlining an operation in a double scan mode. 13 is a display example of a POS terminal in a full self-service mode. 13 is a display example of a POS terminal in a full self-service mode. 13 is a display example on the POS terminal 20 in normal mode. 13 is a display example on the POS terminal 20 in normal mode. 13 is a display example on the POS terminal 20 in normal mode. 13 is a display example on the POS terminal 20 in normal mode. 13 is a display example on the POS terminal 20 in normal mode. 13 is a display example on the POS terminal 20 in normal mode. 10 is a flowchart showing an example of an operation mode switching process performed by a POS terminal 20 when a mode switching button is pressed. 10 is a flowchart showing an example of an operation mode switching process performed by a POS terminal 20 that has received a mode switching command. 11 is an explanatory diagram showing an example of a transition of a registration method when the POS terminal 20 registers a product. FIG. 13A to 13C are explanatory diagrams showing an example of a transition of a registration screen on a store clerk's display unit when a store clerk registers a product. 13A to 13C are explanatory diagrams showing an example of a transition of a registration screen on a store clerk's display unit when a store clerk registers a product. FIG. 13 is an explanatory diagram showing another example of the screen displayed on the store clerk display unit 210 during barcode scanning. 13 is an explanatory diagram showing another example of the transition of the registration screen on the store clerk's display unit when the store clerk registers a product. FIG. 13 is an explanatory diagram showing another example of the transition of the registration screen on the store clerk's display unit when the store clerk registers a product. FIG. 13 is an explanatory diagram showing an example of the transition of a registration screen on a customer side display unit when a customer registers a product. FIG. 13 is an explanatory diagram showing another example of a transition of a registration screen when a customer registers a product. FIG. 13 is an explanatory diagram showing another example of a transition of a registration screen when a customer registers a product. FIG. FIG. 13 is an explanatory diagram showing an example of a display screen of a preset key when a customer registers a product. 10 is a flowchart showing an example of a store clerk-side product registration process performed by the POS terminal 20. 10 is a flowchart showing an example of a store clerk-side product registration process performed by the POS terminal 20. 10 is a flowchart showing an example of a customer-side product registration process performed by the POS terminal 20. 10 is a flowchart showing an example of a customer-side product registration process performed by the POS terminal 20. FIG. 13 is an explanatory diagram showing an example of a display screen when a customer sets a code reading time. FIG. 11 is an explanatory diagram illustrating an example of a code reading time table. FIG. 13 is an explanatory diagram showing an example of a store clerk operation level table. 11 is a flowchart showing an example of a process for setting a code reading time for each operator, which is performed by the POS terminal;

Figure 1 is a network configuration diagram of a POS (Point Of Sales) system according to one embodiment of the present invention. The POS system 1 shown in Figure 1 includes three POS terminals 20-1, 20-2, and 20-3, and a store controller (store computer, management device) 10, all of which are connected to each other via a LAN 11 so as to be able to communicate with each other. Hereinafter, when there is no need to distinguish between the POS terminals 20-1, 20-2, and 20-3, they will be collectively referred to as the POS terminal 20. The POS system 1 may further include a monitoring terminal (not shown) that displays the status of the POS terminal 20 (operation mode, processing status, etc.) and controls the POS terminal 20.

The POS system 1 can be installed in various stores (convenience stores, supermarkets, etc.).

Figure 2 shows an example of the installation of the POS terminal 20. Figure 2(A) is an oblique view of the POS terminal 20, etc., as seen from the customer side. Figure 2(B) is an oblique view of the POS terminal 20, etc., as seen from the store clerk side. As shown in Figure 2(A), a counter is placed to the right of the POS terminal 20 as seen from the customer side.

Figure 3 is a diagram showing an example of the appearance of the POS terminal 20. Figure 3(A) is an oblique view of the POS terminal 20 as seen from the customer side. Figure 3(B) is an oblique view of the POS terminal 20 as seen from the store clerk side. Figure 4 is a diagram showing an example of the configuration of the POS terminal 20. In Figures 3 and 4, the same parts are given the same reference numerals.

Below, an example of the configuration of the POS terminal 20 shown in FIG. 4 will be described with reference to FIG. 3. The POS terminal 20 comprises a CPU 201, a ROM 202, a RAM 203, a hard disk 204, a customer display unit 205, a customer scanner unit 206, a card payment unit 208, a change dispenser 209, a store clerk display unit 210, a key operation unit 211, a store clerk scanner unit 212, a printing unit 213, an audio output unit 214, and a communication unit 215. These can communicate with each other via a bus. The reference characters 211a, 211b, and 211c will be described later.

The CPU 201 is a central processing unit that controls the operation of the POS terminal 20 by reading and executing programs stored in the ROM 202 .
The ROM 202 is a read-only memory, and stores various types of information used by the CPU 201, including programs.

RAM 203 is a read/write memory that stores various information. For example, RAM 203 stores information acquired from the outside (e.g., product master data acquired from store controller 10) and information generated during processing (e.g., registration information (registration data) generated during a registration process that registers products, settlement information generated during a settlement process that settles (pays) purchased products, etc.).

The hard disk 204 stores various information. For example, the hard disk 204 may store programs executed by the CPU 201 instead of the ROM 202. Also, instead of the RAM 203, the hard disk 204 may store information acquired from the outside and information generated during processing.

The customer-side display unit 205 is a touch display for customers, which displays various information to customers and accepts various inputs from customers.
The customer-side scanner unit 206 is a scanner unit for customers, and optically reads various information. For example, the customer-side scanner unit 206 optically reads barcodes (product codes, etc.) attached to products and codes (barcodes, two-dimensional codes, etc.) printed on bills (registered trademarks). In addition to the above, the customer-side scanner unit 206 may also read codes (barcodes, two-dimensional codes, etc.) printed on gift certificates (gift certificates, coupons, preferential coupons) and various cards (e.g., membership cards, point cards, etc.). The customer-side scanner unit 206 and the clerk-side scanner unit 212 described later use, for example, a CCD camera and have the function of an object recognition scanner.

The customer-side scanner unit 206 is used when a customer registers an item, but the customer may register the item using other methods. For example, if a preset key (a button for ordering the item) corresponding to the item is displayed on the customer-side display unit 205, the customer may operate (press) the preset key to register the item.

The card payment unit 208 is a payment mechanism using various cards (credit cards, prepaid cards such as transportation cards, point cards, etc.). The card payment unit 208 is equipped with a card recognition unit (reading unit), a display unit, and an operation unit. The card recognition unit magnetically or electrically reads information from various cards. The read information is used to settle (settle) the purchased items. The card recognition unit may recognize various cards not only when the recognized information is used to settle (settle) the purchased items (i.e., in the case of credit card payment, prepaid card payment, and the use (consumption) of points held on a point card, etc.), but also when the recognized information is not used to settle (settle) the purchased items (for example, when a bonus is given by presenting a credit card, when points are given to a point card, etc.). The card payment unit 208 of this embodiment is equipped with a card recognition unit (reading unit), a display unit, and an operation unit, but the card payment unit 208 may be equipped with at least a card recognition unit. In addition, the card recognition unit of this embodiment is compatible with contact cards (IC cards, magnetic cards), but it may also be compatible with non-contact cards (IC cards) instead of or in addition to contact cards.

The change machine 209 (cash settlement section) is a cash settlement mechanism that has an input port for banknotes and coins and an output port for banknotes and coins, calculates the amount inserted into the input port, calculates the change amount, which is the difference between the input amount and the purchase amount, and outputs the change from the output port. The change machine 209 faces the customer and is operated by the customer. When banknotes or coins are inserted into the input port, they are detected by a sensor (detecting that they have been inserted, detecting the number of coins by denomination, etc.). The card settlement section 208 and the change machine 209 form the settlement section.

The store clerk's display unit 210 is a touch display for the store clerk, which displays various information to the store clerk and receives various inputs from the store clerk.
The key operation unit 211 is made up of various keys (hardware keys, buttons) and receives various inputs from the store clerk.
The store clerk scanner unit 212 is a scanner unit for store clerks, and optically reads various information. For example, the store clerk scanner unit 212 optically reads barcodes attached to products and store clerk codes attached to store clerk nametags. In addition to the above, the store clerk scanner unit 212 may also read codes printed on bills, gift certificates, and various cards.

The clerk-side scanner unit 212 is used when the clerk registers a product, but the clerk may register the product using other methods. For example, if a key corresponding to a product (such as a key corresponding to a sports newspaper) is located on the key operation unit 211, the clerk may operate (press) that key to register the product. Also, if a preset key corresponding to a product is displayed on the clerk-side display unit 210, the clerk may operate that preset key to register the product.

The printing unit 213 prints and issues various media (receipts, bills, etc.). The printing unit 213 can freely rotate to change its orientation (direction of the media issuing port) from the clerk side to the customer side, or from the customer side to the clerk side. The orientation of the printing unit 213 may be changed manually, or it may be changed automatically (mechanically controlled, etc.) based on, for example, a change in operating mode (details described later). The correctness of the orientation of the printing unit 213 may be detected by a sensor or the like. Switching between operating modes is also referred to as a transition in operating mode.

The audio output unit 214 outputs audio. For example, the audio output unit 214 outputs audio guidance and the like.
The communication unit 215 transmits and receives information to and from other terminals (other POS terminals 20, store controller 10).

(Overview of each operation mode)
Next, the operation modes of the POS terminal 20 will be described. The POS terminal 20 has a number of operation modes. The operation modes are operation modes during normal business (operation modes related to registration processing and settlement processing), and do not include a counting mode in which sales and inventory are counted and inquired, a maintenance mode in which store clerks or maintenance personnel perform setting and maintenance work, a training mode in which new employees are trained, etc.

Figure 5 is a diagram outlining the operating modes of the POS terminal 20. The POS terminal 20 has, for example, three operating modes (normal mode (standard mode), full self-service mode, and semi-self-service mode (accounting only mode)) shown in Figure 5 (A). The POS terminal 20 may have the normal mode (restricted mode) shown in Figure 5 (B) instead of or in addition to the normal mode (standard mode) shown in Figure 5 (A). The POS terminal 20 may have the semi-self-service mode (registration only mode) shown in Figure 5 (B) instead of or in addition to the normal mode (standard mode) shown in Figure 5 (A). The POS terminal 20 may have the semi-self-service mode (registration only mode) shown in Figure 5 (B) instead of or in addition to the semi-self-service mode (accounting only mode) shown in Figure 5 (A).

In FIG. 5(A), the columns indicate each operating mode, and the rows indicate each function ("Product registration (clerk side)", "Product registration (customer side)", "Insert coins", ..., "Read receipt"). The same is true in FIG. 5(B) (however, the functions are not shown in FIG. 5(B)).

In Figure 5(A) (and also in Figure 5(B)), an "o" in a field identified by a column and row indicates that the function of that row is enabled in the operating mode of that column. For example, an "o" in a field identified by the column "normal mode (standard mode)" and the row "product registration (clerk side)" indicates that product registration (clerk side) is enabled in normal mode (standard mode). Also, a "-" in a field identified by a column and row indicates that the function of that row is disabled in the operating mode of that column. For example, a "-" in a field identified by the column "normal mode" and the row "product registration (customer side)" indicates that product registration (customer side) is disabled in normal mode.

(Explanation of each function)
Below, an overview of each function shown in FIG.

(Product registration (store clerk side))
"Product registration (clerk side)" is a function for registering purchased products on the clerk side (clerk side scanner unit 212, clerk side display unit 210, key operation unit 211). In other words, it is a function for executing registration processing of purchased products by operations of the clerk (scanning by clerk side scanner unit 212, touching on clerk side display unit 210, operating key operation unit 211).

(Product registration (customer side))
"Product registration (customer side)" is a function for registering purchased products on the customer side (customer side scanner unit 206, customer side display unit 205). In other words, this is a function for executing registration processing of purchased products by customer operations (scanning by customer side scanner unit 206, touching customer side display unit 205).

(Depositing currency)
"Deposit of money" is a function for accepting the insertion of money (banknotes, coins), that is, a function for accepting an operation for settling with cash (insertion of money into the change machine 209).

(Transmitting registration information to other devices)
"Sending registration information to other terminals" is a function to send the registration information generated in the registration process to other terminals (other terminals capable of executing settlement processes, for example, other POS terminals 20) (either directly to the other terminals, or indirectly to the other terminals via the store controller 10 or a monitoring terminal, etc.; the same applies below).

(Issuance of bills)
The "issuance of a receipt" function encodes the registration information generated in the registration process and issues a printed medium (receipt).

(Receiving registration information from other devices)
"Receiving registration information from another terminal" is a function to receive registration information generated in the registration process of another terminal (receiving directly from another terminal, or receiving indirectly from another terminal via the store controller 10 or a monitoring terminal, etc. The same applies below). The terminal that receives the registration information from another terminal executes the settlement process based on the registration information.

(Reading the bill)
"Read receipt" is a function to read receipts (specifically, the code printed on the receipt or the coded information). A terminal that reads a receipt issued by another terminal executes a settlement process based on the registration information obtained by reading the receipt.

(Explanation of each operation mode)
Next, an overview of each operation mode shown in FIG. 5(A) and FIG. 5(B) will be described.

(Normal mode (standard mode))
The normal mode (standard mode) is an operation mode in which product registration (clerk side) is enabled "◯" and product registration (customer side) is disabled "-" as shown in Fig. 5 (A). In other words, the normal mode (standard mode) is an operation mode in which the registration process is not performed on the customer side but is performed on the clerk side.

As shown in FIG. 5(A), normal mode (standard mode) is an operating mode in which the insertion of coins, the sending of registration information to other terminals, and the issuance of a receipt are all enabled (◯). In other words, in normal mode (standard mode), the settlement process after the registration process on the store clerk's side can be performed on the store's own terminal or can be performed by another terminal. Specifically, in normal mode (standard mode), the settlement process is performed on the store's own terminal by accepting the insertion of coins into the change dispenser 209, and the settlement process is performed by the other terminal by sending registration information to the other terminal (or by issuing a receipt).

As shown in FIG. 5A, the normal mode (standard mode) is an operating mode in which both the reception of registration information from other terminals and the reading of the bill are enabled. In other words, in the normal mode (standard mode), the settlement process can be performed based on the registration information generated in the other terminal. The settlement process after the reception of the registration information (or the reading of the bill) may be performed in the semi-self-service mode of FIG. 5A. In other words, when the registration information is received (or the bill is read) in the normal mode (standard mode), the device may automatically switch from the normal mode (standard mode) to the semi-self-service mode (only for billing) (permission from the store clerk may be required) and the settlement process may be performed in the semi-self-service mode (only for billing). In addition, when the device switches to the semi-self-service mode (only for billing) and the settlement process is performed, the device may automatically switch (return) from the semi-self-service mode (only for billing) to the normal mode (standard mode) (permission from the store clerk may be required), or the device may remain in the semi-self-service mode (only for billing).

In addition, in normal mode (standard mode), at least one of receiving registration information from other terminals and reading receipts may be disabled ("-").

(Full selfie mode)
As shown in FIG. 5A, the full self-service mode is an operating mode in which product registration (customer side) is enabled (O). In other words, the full self-service mode is an operating mode that assumes registration processing on the customer side. However, the full self-service mode also enables product registration (clerk side) (O). In other words, the full self-service mode is an operating mode that assumes registration processing on the customer side, but also allows registration processing on the clerk side. The state in which registration processing is performed on both the customer side and the clerk side is sometimes referred to as double scan mode.

In the example shown in FIG. 5(A), product registration (by the store clerk) is enabled (◯) in the full self-service mode, but product registration (by the store clerk) may be disabled (-) in the full self-service mode.

As shown in FIG. 5(A), the full self-service mode is an operating mode in which inserting coins is enabled (◯) and sending registration information to other terminals and issuing receipts is disabled (-). In other words, the full self-service mode is an operating mode that assumes that the settlement process will be carried out at the terminal in question.

As shown in FIG. 5(A), the full self-service mode is an operating mode in which both receiving registration information from other terminals and reading the bill are enabled, as in the normal mode (standard mode). In other words, in the full self-service mode, the settlement process can be performed based on the registration information generated in the other terminal, as in the normal mode (standard mode). The settlement process after receiving the registration information (or reading the bill) may be performed in the semi-self-service mode of FIG. 5(A). In other words, when in the full self-service mode, if the registration information is received (or the bill is read), the device may automatically switch from the full self-service mode to the semi-self-service mode (accounting only mode) and perform the settlement process in the semi-self-service mode (accounting only mode). In addition, when the device switches to the semi-self-service mode (accounting only mode) and performs the settlement process, the device may automatically switch (return) from the semi-self-service mode (accounting only mode) to the full self-service mode, or may remain in the semi-self-service mode (accounting only mode).

(Semi-self mode (accounting only mode))
As shown in Fig. 5(A), the semi-self-service mode (accounting-only mode) is an operating mode in which the reception of registration information from other terminals, the reading of accounting tickets, and the insertion of coins are enabled "〇", and product registration (clerk side) and product registration (customer side) are disabled "-". In other words, the semi-self-service mode (accounting-only mode) is an operating mode in which the registration process is not performed on the terminal itself, and the settlement process is performed solely based on registration information generated on other terminals. Note that, because the semi-self-service mode (accounting-only mode) is an operating mode in which the registration process is not performed (because registration information is not generated), as shown in Fig. 5(A), the sending of registration information to other terminals and the issuance of accounting tickets are both disabled "-".

(Normal mode (Limited mode))
As shown in Fig. 5(B), the normal mode (restricted mode) is an operation mode in which the sending of registration information to other terminals and the issuing of accounting tickets, which are enabled (◯) in the normal mode (standard mode) in Fig. 5(A), are disabled (-). In other words, the normal mode (restricted mode) is an operation mode in which the function of causing other terminals to execute settlement processing, which is permitted in the normal mode (standard mode), is restricted.

(Semi-self mode (registration only mode))
As shown in Fig. 5(B), the semi-self-service mode (registration-only mode) is an operating mode in which product registration (store clerk side), sending of registration information to other terminals, and issuing of receipts are enabled "〇", and product registration (customer side), insertion of coins, receiving of registration information from other terminals, and reading of receipts are disabled "-". In other words, the semi-self-service mode (registration-only mode) is an operating mode in which the registration process is carried out exclusively on the terminal itself, and the payment process is carried out on other terminals. Note that because the semi-self-service mode (registration-only mode) is premised on the registration operation being carried out by a store clerk, product registration (customer side) is disabled "-".

(About enabling and disabling functions)
In the above, it has been explained that the various functions of the POS terminal 20 itself (product registration (clerk side), product registration (customer side), coin insertion, ..., receipt reading in Fig. 5(A)) are enabled "O" or disabled "-" depending on the operation mode. In other words, it has been explained above that the POS terminal 20 originally has all functions (product registration (clerk side), product registration (customer side), coin insertion, ..., receipt reading in Fig. 5(A)), and some of these functions are disabled depending on the operation mode (for example, as shown in Fig. 5(A) , the POS terminal 20 disables product registration (customer side) "-" when in normal mode (standard mode), and disables sending registration information to other terminals and issuing receipts "-" when in full self-service mode).

However, the POS terminal 20 may have different executable functions depending on the operation mode, and the POS terminal 20 does not necessarily have to have all the functions from the beginning and disable some of the functions depending on the operation mode. For example, the POS terminal 20 does not have all the functions (programs for realizing the functions) from the beginning, but rather, depending on the operation mode (for example, when switching the operation mode), a program for realizing a function required in the operation mode (a function corresponding to the function marked as "○" in FIG. 5) is acquired from the outside (for example, the store controller 10, a monitoring terminal, a server outside the store (cloud, etc.)) and made executable, and if a program for realizing a function not required for the operation mode (a function corresponding to the function marked as "-" in FIG. 5) exists (when held), the program may be made in an inexecutable state (for example, may be erased). Note that the program for realizing the unnecessary function may be made in an inexecutable state, and then the program for realizing the necessary function may be acquired and made executable. Also, for example, when switching between operating modes, the POS terminal 20 may first render all programs inoperable, regardless of the operating mode to which it is transitioning, and then obtain from the outside a program for implementing the functions required in that operating mode and render it executable. In other words, the POS terminal 20 may be configured to disable some of the various functions that it originally possesses depending on the operating mode, or it may be configured to possess only the necessary functions depending on the operating mode.

The normal mode (standard mode), full self-service mode, and semi-self-service mode (accounting only mode) in Figure 5 (A), and the normal mode (restricted mode) and semi-self-service mode (registration only mode) in Figure 5 (B) have been explained above, but the following explanation will focus on the normal mode (standard mode), full self-service mode, and semi-self-service mode (accounting only mode) in Figure 5 (A). Note that in the following explanation, normal mode (standard mode) may be simply referred to as normal mode. Also, semi-self-service mode (accounting only mode) may be simply referred to as semi-self-service mode.

(Switching (transitioning) operation modes)
Next, the switching (transition) of the operation mode of the POS terminal 20 will be described. The operation mode of the POS terminal 20 is basically switched in accordance with an explicit mode switching operation (also called a mode transition operation; details will be described later) performed by a store clerk to switch the operation mode. The operation mode of the POS terminal 20 may also be switched in accordance with an operation other than the mode switching operation (for example, reading a store clerk code, etc.).

The POS terminal 20 may switch its operating mode without being operated by a store clerk. Specifically, the POS terminal 20 may switch its operating mode according to a mode switching command (mode switching instruction) from another terminal (the POS terminal 20, a monitoring terminal, a mobile terminal, etc.). The POS terminal 20 may switch its operating mode according to a time condition (e.g., the time elapsed since the last operation, a fixed time according to a schedule, etc.). The POS terminal 20 may switch its operating mode at the start of a process (e.g., at the start of a settlement process based on the received registration information, at the start of a settlement process based on a receipt, etc.). The POS terminal 20 may switch its operating mode at the end of a process (e.g., at the end of a settlement process based on the received registration information, at the end of a settlement process based on a receipt).

Figure 6 is a diagram explaining the switching of the operation mode of the POS terminal 20. The left side of Figure 6 shows the combination of operation modes before and after the switch (operation mode before switching → operation mode after switching), and the right side shows the conditions for switching the operation mode (one example). For example, row a shows that, as one example of the conditions for switching the operation mode from normal mode to full self-service mode, there is a mode switching operation, a mode switching command, or the passage of a predetermined time (not in use). In other words, when the operation mode is normal mode, if there is, for example, a mode switching operation, a mode switching command, or the passage of a predetermined time (not in use), the operation mode will switch from normal mode to full self-service mode. The mode switching operation will be described in detail later.

(Normal mode → Full self mode)
As shown in a, when in the normal mode, for example, if a mode switching operation, a mode switching command (such as a mode switching command in which full self mode is specified as the operation mode to be transitioned to), or a predetermined time has elapsed (a predetermined period of non-use), the operation mode will switch from the normal mode to the full self mode.

(Normal mode → Semi-self mode (accounting only mode))
As shown in b, when in normal mode, for example, if there is a mode switching operation or a mode switching command (such as a mode switching command specifying semi-self mode (accounting only mode) as the destination operating mode), the operating mode switches from normal mode to semi-self mode (accounting only mode). Also, when in normal mode, for example, if registration information is received from another terminal or an accounting ticket is read, the operating mode may be switched from normal mode to semi-self mode (accounting only mode).

(Full self mode → Normal mode)
As shown in c, when the full self mode is selected, for example, if a mode switching operation or a mode switching command (such as a mode switching command in which the normal mode is specified as the destination operating mode) is performed, the operating mode is switched from the full self mode to the normal mode.

(Full self-service mode → Semi-self-service mode (accounting only mode))
As shown in FIG. 1D, when in full self-service mode, for example, if there is a mode switching operation or a mode switching command (such as a mode switching command specifying semi-self-service mode (accounting only mode) as the destination operating mode), the operating mode switches from full self-service mode to semi-self-service mode (accounting only mode). Also, when in full self-service mode, for example, if registration information is received from another terminal or an accounting ticket is read, the operating mode may be switched from full self-service mode to semi-self-service mode (accounting only mode).

(Full self mode → Double scan mode)
As shown in FIG. 5(e), when in the full self-service mode, if, for example, a store clerk code is read, the operation mode switches from the full self-service mode to the double scan mode. The double scan mode is one aspect of the full self-service mode (a state in which the product registration (store clerk) function is used in addition to the product registration (customer) function; see FIG. 5(A)).

Note that if the clerk code is read while in full self-service mode, the operating mode may always switch to double scan mode regardless of the state of product registration, or may switch to a different operating mode depending on the state of product registration. For example, if the clerk code is read when a product has not yet been registered (i.e., the customer has not yet registered a product), the operating mode may switch from full self-service mode to normal mode, and if the clerk code is read when a product has already been registered (i.e., the customer has registered a product), the operating mode may switch from full self-service mode to double scan mode.

(Semi-self mode (accounting only mode) → Normal mode)
As shown in FIG. 1f, when in the semi-self-service mode (accounting only mode), the operation mode switches from the semi-self-service mode (accounting only mode) to the normal mode if, for example, a mode switching operation or a mode switching command (such as a mode switching command in which the normal mode is specified as the operation mode to be transitioned to) is performed. Also, when in the semi-self-service mode (accounting only mode), the operation mode may be switched from the semi-self-service mode (accounting only mode) to the normal mode if, for example, a settlement process (for example, a settlement process based on received registration information, a settlement process based on a bill) is completed.

(Semi-self-service mode (accounting only mode) → Full self-service mode)
As shown in FIG. 1g, when in the semi-self-service mode (accounting only mode), for example, if there is a mode switching operation or a mode switching command (such as a mode switching command in which the full self-service mode is specified as the operation mode to be transitioned to), the operation mode switches from the semi-self-service mode (accounting only mode) to the full self-service mode. Also, when in the semi-self-service mode (accounting only mode), for example, if a settlement process (for example, a settlement process based on received registration information, a settlement process based on a bill) is completed, the operation mode may be switched from the semi-self-service mode (accounting only mode) to the full self-service mode.

Note that the mode switching operation may be one in which the destination operation mode is specified according to the operation. For example, if a separate button for each destination is provided (or displayed), the operation mode may be switched to each destination according to the mode switching operation of pressing the respective button. Also, if a single button that switches the destination each time it is pressed is provided (or displayed), the operation mode may be switched each time the mode switching operation of pressing that button is performed.

In addition, a button for selecting the destination operation mode and a button for confirming the transition to the operation mode selected by the button may be provided (or displayed) separately.

(Transition of operation mode by mode switching operation)
Next, the transition of operation modes by mode switching operation will be described. The POS terminal 20 switches operation modes in response to an explicit mode switching operation by a store clerk (see FIG. 6). Specifically, the operation mode is switched in response to the operation of the mode switching button 211a (see FIG. 3B) located at the top and right end of the key operation unit 211.

In addition, since the mode switching button 211a is located at a corner of the key operation unit 211, it is possible to reduce operational errors when switching between operation modes and to easily switch between operation modes. In other words, when the mode switching button 211a is located at a corner of the key operation unit 211, compared to when the mode switching button 211a is located near the center of the key operation unit 211, for example, there are fewer other buttons adjacent to the mode switching button 211a that is the object of operation. This makes it less likely that an operational error will occur, such as hastily operating another button, and also makes it possible to instantly identify the position of the mode switching button 211a that is the object of operation, allowing for stress-free mode switching operations.

Furthermore, because the mode switching button 211a is located in the upper right corner (top row and rightmost) of the key operation unit 211, mode switching can be performed not only when the clerk is on the clerk side but also when the clerk is on the customer side. In other words, a clerk on the customer side cannot normally see the buttons on the key operation unit 211, but the mode switching button 211a located on the upper right corner of the key operation unit 211 can be easily recognized as the mode switching button 211a to be operated by reaching out from the customer side and feeling around for it (by touch), so the clerk on the customer side can perform mode switching without moving to the clerk side.

In this embodiment, the mode switching button 211a is located in the upper right corner of the key operation unit 211, but the mode switching button 211a may be located in a position other than the upper right corner of the key operation unit 211 as long as the position is recognizable by touch alone (a position that is relatively easy to recognize). Also, instead of or in addition to locating the mode switching button 211a in a position that can be recognized by touch alone (for example, the upper right corner), the mode switching button 211a may be formed so that it can be distinguished from other buttons even from the customer's side. For example, the size of the mode switching button 211a may be different from the size of the other buttons, the shape of the mode switching button 211a may be different from the shape of the other buttons, or the height of the mode switching button 211a may be different from the height of the other buttons (for example, the mode switching button 211a may be made to protrude further than the other buttons), or the feel of all or part of the surface of the mode switching button 211a (the surface that the hand touches) may be different from the feel of the other buttons (for example, only the surface of the mode switching button 211a may be made to feel rough or bumpy, or only the surface of the mode switching button 211a may be provided with protrusions or depressions).

In this embodiment, taking into consideration the various advantages described above, the mode switching button 211a is provided on the key operation unit 211. However, instead of or in addition to providing the mode switching button 211a on the key operation unit 211, a mode switching button (not shown) may be provided on the screen displayed on the store clerk display unit 210.

(Operation of each operation mode)
Fig. 7 is a schematic diagram for explaining an overview of operation in normal mode. Specifically, Fig. 7 is a schematic diagram showing the flow of processing and the actions of people (store clerks, customers) when a settlement process is performed at the user's own terminal in normal mode. Fig. 8 is a flowchart for explaining an overview of operation in normal mode. Specifically, Fig. 8 is a flowchart for explaining an overview of operation when a settlement process is performed at the user's own terminal in normal mode.

In normal mode (either when the payment process is performed at the store's own terminal or when the payment process is performed at another terminal), the store clerk registers the items purchased by the customer on the store clerk side (store clerk scanner unit 212, store clerk display unit 210, key operation unit 211) (top of Figure 7). In other words, the POS terminal 20 executes the registration process of the purchased items through the operations of the store clerk (scanning with the store clerk scanner unit 212, touching the store clerk display unit 210, operating the key operation unit 211) (top of Figure 7).

When the store clerk has completed the registration process, the customer checks the total amount of the purchased items on the store clerk display unit 210 and settles the bill by inserting coins (cash) into the change machine 209 or by operating the card payment unit 208 (lower part of Figure 7). In other words, the POS terminal 20 executes the settlement process according to the customer's operation (inserting cash into the change machine 209, operating the card payment unit 208) (lower part of Figure 7).

That is, when performing the settlement process on the user's own terminal in normal mode, as shown in FIG. 8, the clerk first scans the product (step S10: YES) and registers the product (step S11). After pressing a subtotal key (e.g., a subtotal key displayed on the clerk display unit 210 or a subtotal key located on the key operation unit 211) (step S30: YES), the customer settles the amount using, for example, the change dispenser 209 (step S50), and the process is completed. The subtotal key in step S30 is an operation key for completing the registration process, and may also be called a subtotal button, registration completion key, registration completion button, bill key, bill button, etc.

The customer may wait until the registration process is completed by the store clerk (until the total amount is confirmed), but may also insert cash into the change dispenser 209 before the registration process is completed. In other words, the POS terminal 20 can accept deposits during the registration process (upper part of Figure 7).

The customer may also select a payment method (also called a payment type, settlement method, or payment type) before completing the registration process. In other words, the POS terminal 20 can accept the selection of a payment method during the registration process.

The store clerk may wait until the customer has completed the payment (until the customer has received their change and receipt), but may also register the items purchased by the next customer. In other words, the POS terminal 20 can register the items purchased by the next customer while the payment is being processed (lower part of Figure 7). The store clerk may also be absent while the customer is paying (lower part of Figure 7). In other words, the store clerk may finish serving the customer while the customer is paying.

In addition, when there is change, the POS terminal 20 may control the dispenser 209 to dispense the change and change tag to prevent the customer from forgetting to take the change, and after recognizing with a sensor or the like that the customer has removed the change and change tag, control the printing unit 213 to print a receipt. The same applies to other operating modes.

Figure 9 is a schematic diagram outlining operation in normal mode. Specifically, Figure 9 is a schematic diagram showing the process flow and the actions of people (store clerks, customers) when another terminal is made to execute the settlement process in normal mode (standard mode). Figure 10 is a flowchart outlining operation in normal mode, etc. Specifically, Figure 10 (A) is a flowchart outlining operation when another terminal is made to execute the settlement process in normal mode (standard mode). Note that Figure 10 (B) is a flowchart showing the basic flow of operation in the other terminal (other device) in Figure 10 (A).

In normal mode (either when the payment process is performed at the store's own terminal or when another terminal is made to perform the payment process), the store clerk registers the items purchased by the customer on the store clerk side (store clerk scanner unit 212, store clerk display unit 210, key operation unit 211) (top of Figure 9). In other words, the POS terminal 20 (POS terminal 20-1 in the example of Figure 9) executes the registration process of the purchased items through the operation of the store clerk (operation of the store clerk scanner unit 212, store clerk display unit 210, key operation unit 211, etc.) (top of Figure 9).

When the store clerk has completed the registration process, the customer moves to another POS terminal 20 (POS terminal 20-2 in the example of FIG. 9), checks the total amount of the purchased items on the store clerk display unit 210, and settles the bill by inserting coins into the change machine 209 or operating the card payment unit 208 (lower part of FIG. 9). In other words, the other POS terminal 20 executes the settlement process in response to the customer's operation (inserting coins into the change machine 209, operating the card payment unit 208) (lower part of FIG. 9).

In addition, the other POS terminal 20 (POS terminal 20-2) is provided with information necessary for the settlement process (such as the registration information generated in POS terminal 20-1).

The store clerk uses POS terminal 20-1 to specify the POS terminal 20 that will execute the settlement process (in the example of FIG. 9, either POS terminal 20-2 or POS terminal 20-3). Alternatively, the store clerk may use POS terminal 20-1 to issue a medium (a bill) that will be read by the POS terminal 20 that will execute the settlement process (in the example of FIG. 9, POS terminal 20-2 or POS terminal 20-3).

That is, when the checkout process is to be executed by another terminal in normal mode, as shown in FIG. 10(A), the clerk first scans the product (step S10: YES) and registers the product (step S11). After pressing a subtotal key (e.g., a subtotal key displayed on the clerk display unit 210 or a subtotal key located on the key operation unit 211) (step S30: YES), for example, another POS terminal 20 to execute the checkout process is designated (step S31: YES), and the registration information is sent to the designated POS terminal 20 (step S32), completing the registration process.

After specifying another terminal, the store clerk can register the next customer's purchase (lower part of Figure 9). Also, after specifying another terminal, the store clerk may not be present (lower part of Figure 9).

In the example shown in FIG. 10(A), another POS terminal 20 is specified after pressing the subtotal key, but it is also possible to specify another POS terminal 20 without pressing the subtotal key. For example, a subtotal key and a key for specifying another POS terminal 20 may be arranged on the registration screen (and a key for issuing a receipt may also be arranged), and registration information may be sent when the key for specifying a POS terminal 20 is pressed. In the aspect of specifying another POS terminal 20 without pressing the subtotal key, it is not necessary to press the subtotal key after pressing the key for specifying another POS terminal 20.

Although omitted in the example shown in FIG. 10(A), a receipt may be issued to be read by another POS terminal 20, and the other POS terminal 20 may execute the settlement process. The key for issuing the receipt may be pressed after the subtotal key is pressed, or may be pressed before the subtotal key is pressed. In the case where the key for issuing the receipt is pressed before pressing the subtotal key, it is not necessary to press the subtotal key after pressing the key for issuing the receipt.

The other POS terminal 20 that received the registration information (POS terminal 20-2 in the example of FIG. 9) transitions (switches) to semi-self-service mode (accounting only mode) if it is not in semi-self-service mode (accounting only mode) after receiving the registration information (step S40: YES), as shown in FIG. 10 (B). In other words, if the current operating mode (at the time of receiving the registration information) is full self-service mode (step S41: YES), it transitions from full self-service mode to semi-self-service mode (accounting only mode) (step S42), and if the current operating mode is normal mode (step S43: YES), it transitions from normal mode to semi-self-service mode (accounting only mode) (step S42). Then, at the customer's side, settlement is performed by, for example, the change dispenser 209 (step S50), and the settlement process is completed.

In the example shown in FIG. 10(B), the other POS terminal 20 that received the registration information switches to semi-self-service mode (accounting only mode) after receiving the registration information if it is not already in semi-self-service mode (accounting only mode), but it does not have to switch to semi-self-service mode (accounting only mode). In other words, because payment processing is possible even in normal mode or full self-service mode (see FIG. 5), payment processing may be performed while remaining in normal mode or full self-service mode.

As described above, the normal mode (standard mode) includes a function for a store clerk to execute a registration process and then execute a settlement process at the customer's terminal using the registration information generated in the registration process (see Figures 7 and 8); a function for sending the registration information generated in the registration process to another terminal (another terminal capable of executing a settlement process, such as another POS terminal 20) and having the other terminal execute the settlement process (see Figures 9 and 10); and a function for issuing a receipt printed with the registration information generated in the registration process (or information for obtaining the registration information) as a code (barcode, two-dimensional code, etc.), and having the other terminal execute the settlement process.

On the other hand, as shown in FIG. 5(B), the normal mode (restricted mode) is a mode in which, among the functions of the normal mode (standard mode) described above, the function of sending the registration information generated in the registration process to another terminal and having the other terminal execute the settlement process, and the function of issuing an accounting ticket that is printed by encoding the registration information generated in the registration process (or information for obtaining the registration information) and having the other terminal execute the settlement process are restricted.

In addition, among the functions of the normal mode (standard mode) described above, the function of sending the registration information generated in the registration process to another terminal and having the other terminal execute the settlement process, and the function of issuing a bill on which the registration information generated in the registration process (or information for acquiring the registration information) is coded and printed, and having the other terminal execute the settlement process, are also functions of the semi-self-service mode (registration-only mode). In other words, the semi-self-service mode can be classified into a registration-only mode and a billing-only mode, but the semi-self-service mode (registration-only mode) includes a function of sending the registration information generated in the registration process to another terminal and having the other terminal execute the settlement process, and a function of issuing a bill on which the registration information generated in the registration process (or information for acquiring the registration information) is coded and printed, and having the other terminal execute the settlement process, as shown in FIG. 5 (B). In other words, the semi-self-service mode (registration-only mode) is a mode in which the function of executing the registration process on the customer's side using the registration information generated in the registration process after the clerk executes the registration process is restricted from the functions of the normal mode (standard mode) described above. In other words, the semi-self mode (registration-only mode) is an operating mode that exclusively performs the registration process.

As shown in FIG. 5(A), the semi-self-service mode (accounting-only mode) includes a function to receive registration information generated in the registration process at another terminal and execute the settlement process, and a function to read an accounting ticket issued at another terminal and execute the settlement process. In other words, the semi-self-service mode (accounting-only mode) is an operating mode that exclusively executes the settlement process.

Figure 11 is a schematic diagram outlining the operation of the full self mode. Figure 12 is a flowchart outlining the operation of the full self mode.

In the full self-service mode, the customer registers the items he or she has purchased on the customer side (customer side scanner unit 206, customer side display unit 205) (top of Fig. 11). In other words, the POS terminal 20 executes the registration process for the purchased items through the customer's operation (scanning with the customer side scanner unit 206, touching the customer side display unit 205) (top of Fig. 11).

When the registration process is complete, the customer checks the total amount of the purchased items on the customer display unit 205 and settles the bill by inserting cash into the change machine 209 or operating the card payment unit 208 (lower part of Fig. 11). In other words, the POS terminal 20 executes the settlement process based on the customer's operation (inserting cash into the change machine 209, operating the card payment unit 208) (lower part of Fig. 11).

That is, in the case of full self-service mode, as shown in FIG. 12, the customer scans the product (step S20: YES) and registers the product (step S21). After pressing a registration completion key (e.g., a registration completion key displayed on the customer display unit 205) (step S40: YES), the customer uses, for example, the change dispenser 209 to settle the bill (step S50), completing the process. The registration completion key in step S40 is an operation key for completing the registration process, and may also be referred to as a registration completion button, subtotal key, subtotal button, bill key, bill button, etc.

In the full self-service mode, as shown in FIG. 11, the customer performs both the registration process and the settlement process, but this does not mean that the store clerk cannot do anything. In other words, even when the POS terminal 20 is operating in the full self-service mode, the store clerk can, for example, scan products (double scan mode) or display various information.

Figure 13 is a schematic diagram outlining the operation of the double scan mode. Figure 14 is a flow chart outlining the operation of the double scan mode. Note that the double scan mode is one aspect of the full self mode, but for the sake of convenience, the two operation modes are described separately in Figures 13 and 14.

In the full self-service mode, the customer registers the items he or she has purchased on the customer side (top row of FIG. 11, top row of FIG. 13). In other words, the POS terminal 20 executes the registration process for the purchased items through the customer's operation (top row of FIG. 11, (top row of FIG. 13)).

In the middle of the customer's registration process, the store clerk registers the items purchased by the customer (middle part of Figure 13). In other words, the POS terminal 20 executes the registration process operated by the customer and the registration process operated by the store clerk (middle part of Figure 13).

When the registration process is complete, the customer checks the total amount of the purchased items on the customer display unit 205 and settles the bill by inserting cash into the change machine 209 or operating the card payment unit 208 (lower part of FIG. 13). In other words, the POS terminal 20 executes the settlement process according to the customer's operation (inserting cash into the change machine 209, operating the card payment unit 208) (lower part of FIG. 13).

In other words, when the registration process is being performed in full self-service mode (see FIG. 12), if the store clerk code is read by the store clerk scanner unit 212 (step S110: YES), as shown in FIG. 14 (A), the operating mode transitions from full self-service mode to double scan mode (step S111).

After switching to the double scan mode, as shown in FIG. 14B, the clerk scanner unit 212 scans the item (step S10: YES), registers the item (step S11), and the customer scanner unit 206 scans the item (step S20: YES), registers the item (step S21). After pressing a subtotal key (e.g., a subtotal key displayed on the clerk display unit 210 or a subtotal key located on the key operation unit 211) or a registration completion key (e.g., a registration completion key displayed on the customer display unit 205) (step S41: YES), the customer uses, for example, the change dispenser 209 to settle the amount (step S50), and the process is completed.

In double scan mode, the store clerk may wait until the customer has completed the payment (until the customer has received their change and receipt), but may also register the items purchased by the next customer. In other words, the POS terminal 20 can register the items purchased by the next customer while the payment is being processed (lower part of Figure 13). Also, the store clerk may be absent while the customer is paying (lower part of Figure 13). In other words, the store clerk may finish serving the customer while the customer is paying.

As shown in FIG. 14(A), when the clerk code is read in full self-service mode, the operation mode transitions from full self-service mode to double scan mode. However, reading the clerk code may be one of the login operations. The operation mode may also transition from full self-service mode to double scan mode when another operation (e.g., a login operation other than reading the clerk code) is performed in full self-service mode. The operation mode may also transition from double scan mode to full self-service mode when no operation is performed by the clerk in double scan mode (e.g., when a predetermined time has passed since the last operation).

(Operation mode notification)
Each POS terminal 20 may notify its own current operation mode. For example, each POS terminal 20 may display its own current operation mode on the clerk display unit 210. Specifically, each POS terminal 20 may display a screen having an operation mode display field for its own terminal on the clerk display unit 210, and display its own current operation mode in the operation mode display field on the screen. Also, each POS terminal 20 may display a screen on the clerk display unit 210 in which images corresponding to each operation mode (e.g., button-like images) are arranged, and display the images corresponding to the current operation mode of the terminal on the screen in a display mode different from images not corresponding to the current operation mode (e.g., a display mode that stands out more than the display modes of other images). For example, in the case of operation in two operation modes, normal mode and full self-service mode, a normal mode image and a full self-service mode image may be constantly displayed, and when the current operation mode of the terminal is normal mode, the normal mode image may be displayed in a more prominent display manner than the full self-service mode image, and when the current operation mode of the terminal is full self-service mode, the full self-service mode image may be displayed in a more prominent display manner than the normal mode image. Each POS terminal 20 may similarly display the current operation mode of its own terminal on the customer side display unit 205.

Also, each POS terminal 20 may report the current operating mode of the other terminal instead of or in addition to its own current operating mode. That is, each POS terminal 20 may report the current operating mode of the other terminal by recognizing the current operating mode of the other terminal. One example of a method for each POS terminal 20 to recognize the current operating mode of the other terminal is a method in which each POS terminal 20 notifies the other terminal of the new operating mode (latest operating mode) after switching the operating mode (by directly notifying the other terminal via the LAN 11, or by notifying the other terminal via the store controller 10, a monitoring terminal, etc.). Also, each POS terminal 20 may report the current processing status of the other terminal as well as the current operating mode of the other terminal.

Each POS terminal 20 may also report information according to its own current operating mode (operating mode, processing status, etc.). For example, when the current operating mode of the POS terminal 20 is a full self mode, for example when it is in standby, the POS terminal 20 may display various information on the customer side display unit 205. The POS terminal 20 may also report information according to the current operating mode of other terminals instead of or in addition to information according to its own current operating mode.

The operating mode of the terminal itself and other terminals will be notified even if the operating mode is changed by a store clerk (by a mode switching operation, reading of a store clerk code, etc.) or if the operating mode is changed without a store clerk's operation (by a mode switching command, the passage of a specified time, etc.).

(Storage of information regarding operation modes)
Each POS terminal 20 may store, as information about the operation mode, in which operation mode a transaction (processing) was performed. For example, when a POS terminal 20-1 operating in a normal mode (standard mode) performs a registration process and a settlement process for a certain transaction, the POS terminal 20-1 that performed the registration process and the settlement process may store information (e.g., information that can identify the operation mode) that the registration process and the settlement process for the transaction were performed in the normal mode (standard mode) as information about the transaction (e.g., settlement information) (or in association with the information about the transaction).

Each POS terminal 20 may also store at which terminal the transaction (processing) was performed. In the above example, the POS terminal 20-1 may store information that the registration process and the settlement process were performed at its own terminal (POS terminal 20-1) as information related to the transaction. More specifically, the POS terminal 20-1 may store the terminal identification information of its own terminal as the identification information (terminal identification information) of the terminal that performed the registration process, and may store the terminal identification information of its own terminal as the terminal identification information of the terminal that performed the settlement process. Alternatively, the POS terminal 20-1 may store the terminal identification information of its own terminal as the terminal identification information of the terminal that performed the entire process (registration process, settlement process).

For example, if a POS terminal 20-1 operating in normal mode (standard mode) first executes a registration process for a certain transaction, and then a POS terminal 20-2 operating in semi-self-service mode (accounting-only mode) executes a settlement process for that transaction based on the registration information from the above registration process, the POS terminal 20-2 that executed the settlement process may store information that the registration process for that transaction was performed in normal mode (standard mode) as information about that transaction (for example, settlement information) (or in association with information about that transaction), and may also store information that the settlement process for that transaction was performed in semi-self-service mode (accounting-only mode). In addition to the above, the POS terminal 20-1 that executed the registration process may also store information that the registration process for that transaction was performed in normal mode (standard mode).

In the above example, the POS terminal 20-2 that executed the settlement process may store information indicating that the registration process was executed at the other terminal (POS terminal 20-1) as information regarding the transaction, and may store information indicating that the settlement process was executed at its own terminal (POS terminal 20-2). More specifically, the POS terminal 20-2 may store the terminal identification information of the other terminal (POS terminal 20-1) as information (terminal identification information) regarding the terminal that executed the registration process, and may store the terminal identification information of its own terminal (POS terminal 20-2) as the terminal identification information of the terminal that executed the settlement process. In the above example, it is sufficient that the POS terminal 20-2 that executes the settlement process is able to obtain the terminal identification information of the POS terminal 20-1 that executed the registration process and information identifying the operating mode (specifically, normal mode (standard mode)). For example, it is sufficient if the terminal identification information of POS terminal 20-1 and information identifying the operating mode are provided from POS terminal 20-1 to POS terminal 20-2 (for example, sent and received as registration information, or provided via a bill).

Each POS terminal 20 may also store information about transitions (switches) of operation modes as information about operation modes. For example, when the operation mode of the POS terminal 20-1 transitions from one operation mode to another, the POS terminal 20-1 may store information about which operation mode it transitioned to (e.g., information that can identify the operation mode after the transition) along with the time of the operation mode transition. The POS terminal 20-1 may also store information about which operation mode it transitioned from to (e.g., information that can identify the operation mode before the transition, information that can identify the operation mode after the transition) along with the time of the operation mode transition.

Each POS terminal 20 may store information regarding the transition of the operating mode, whether the operating mode was switched by an operation by a store clerk (by a mode switching operation, reading of a store clerk code, etc.) or not by an operation by a store clerk (by a mode switching command, the passage of a predetermined time, etc.). In the above cases, each POS terminal 20 may store information regarding the basis on which the operating mode was switched (for example, that the operating mode was switched by an operation by a store clerk with clerk code "xxx", that the operating mode was switched by a mode switching command from a POS terminal 20 with terminal identification information "xxx").

In addition to or in addition to the POS terminal 20, the store controller 10 or a monitoring terminal may store information regarding the operating mode.

In addition, the information about the operation mode stored as described above may be output (displayed, transmitted, printed, etc.) as necessary. For example, the POS terminal 20 may print information (information that only the store clerk can recognize, or information that can also be recognized by the customer) indicating that the process (registration process, settlement process) was performed in the full self-service mode on a receipt output in the full self-service mode. Receipts output in other operation modes may be printed in a similar manner. In addition, for example, the POS terminal 20 (or the monitoring terminal) may display the operation mode at the time of processing. As an example, when a transaction number (information that can identify a transaction) is entered on a specified search screen, the POS terminal 20 (or the monitoring terminal) may display the terminal (terminal identification information, etc.) on which the process was performed and the operation mode (information that can identify the operation mode) for at least one of the registration process and the settlement process for the corresponding transaction.

In the following explanation, it is assumed that POS terminal 20-1 and POS terminal 20-2 are in normal mode (specifically, normal mode (standard mode)). In addition, it is assumed that POS terminal 20-3 is in full self-service mode.

(Display example of POS terminal 20 in full self-service mode)
Figures 15 and 16 are examples of displays on the POS terminal 20 in the full self-service mode. Specifically, Figures 15(A), 15(B), and 16(A) to 16(F) are all examples of displays on the customer-side display unit 205 of a POS terminal 20-3 in the full self-service mode.

Figure 15 (A) shows the display contents of the registration start screen before the start of the registration process. In Figure 15 (A), the registration start button BT30 on the right of the screen is a button for instructing the start of product registration. The customer operates the registration start button BT30 when starting product registration. Buttons BT35 to BT37 on the bottom left of the screen are buttons for switching the display language between English, Chinese, and Korean, respectively.

Figure 15 (B) shows the display contents of the registration screen when the second product (daifuku mochi) has been registered. Note that when the registration start button BT30 is operated on the registration start screen shown in Figure 15 (A), the POS terminal 20-3 displays a registration screen in which no products have yet been registered, but for ease of explanation, Figure 15 (B) shows the registration screen after the products (tea and daifuku mochi) have already been registered.

In FIG. 15(B), image GA01 at the bottom left of the screen shows the state of the other terminal (POS terminal 20-1) (specifically, that it is in normal mode). Image GA02 at the bottom left of the screen shows the state of the other terminal (POS terminal 20-2) (specifically, that it is in normal mode). The checkout button BT32 at the bottom right of the screen is a button for instructing the end of product registration. The customer operates the checkout button BT32 after product registration is complete. The store clerk call button BT33 is a button for calling a store clerk. The customer operates the store clerk call button BT33 when calling a store clerk (for example, when the customer needs the support of a store clerk).

As mentioned above, buttons BT35 to BT37 are buttons for switching the display language between English, Chinese, and Korean, respectively. Also, the "Vegetables" button BT38 is a button for displaying each preset key for vegetables (see FIG. 17).

Figure 16 (A) shows the display contents of the settlement screen (payment method selection screen) that is displayed when the settlement process is started. For example, when the checkout button BT32 is operated on the registration screen (see Figure 15 (B)), the POS terminal 20-3 displays the payment method selection screen as shown in Figure 16 (A).

Figure 16 (B) shows the display contents of the settlement screen (deposit screen) displayed when starting a cash payment. For example, when cash is operated on the payment method selection screen (see Figure 16 (A)), the POS terminal 20-3 displays the deposit screen as shown in Figure 16 (B).

Figure 16 (C) shows the display contents of the settlement screen (deposit screen) displayed when deciding the deposit amount. For example, when cash (deposit) equal to or greater than the payment amount (purchase amount) is inserted, the POS terminal 20-3 displays the deposit screen as shown in Figure 16 (C).

Figure 16 (D) shows the display contents of the settlement screen (change screen) displayed when dispensing change. For example, when the End (receipt) button BT40 is operated on the deposit screen (Figure 16 (C)), the POS terminal 20-3 displays the change screen as shown in Figure 16 (D).

Figure 16 (E) shows the display contents of the settlement screen (receipt screen) displayed when change has been removed. For example, the POS terminal 20-3 displays a receipt screen as shown in Figure 16 (E) when change has been removed from the outlet of the change dispenser 209. The POS terminal 20 may be provided with a sensor such as a photosensor near the outlet, and determine that change has been removed when the sensor recognizes an object (presumably a customer's hand). Figure 16 (F) shows the pause screen displayed when in pause mode (pause state).

After displaying the receipt screen (FIG. 16(E)), the POS terminal 20-3 displays the registration start screen (FIG. 15(A)). For example, the POS terminal 20-3 displays the registration start screen after the receipt is removed from the issuing port of the printing unit 213. The POS terminal 20 may be equipped with a sensor that can recognize that the receipt has been removed from the issuing port. Also, if no change is to be made, the screen may transition from the deposit screen (FIG. 16(C)) to the receipt screen (FIG. 16(E)) without displaying the change screen (FIG. 16(D)).

(Display example of POS terminal 20 in normal mode)
Figures 17 to 22 are display examples on the POS terminal 20 in normal mode. Specifically, Figures 17(A), 18(A), 19(A), 20(A), 21(A), and 22(A) are all display examples on the clerk display unit 210 of the POS terminal 20-1 in normal mode (standard mode). Figures 17(B), 18(B), 19(B), 20(B), 21(B), and 22(B) are all display examples on the customer display unit 205 of the POS terminal 20-1 in normal mode (standard mode).

Figure 17 (A) shows the display contents on the registration screen in the initial state on the store clerk display unit 210. In the following explanation, unless otherwise specified, the initial state refers to a state in which no processing is progressing, for example, a state in which no products have yet been registered, and no payment (settlement) has yet been made (no payment method has been selected, no cash has been inserted, no gift certificates have been registered, etc.), and no customer has yet been made (no membership card, etc. has been read, etc.).

In FIG. 17(A), the tab area T1 in the upper right corner of the screen is a tab corresponding to each display content (display screen). The POS terminal 20-1 can suspend the registration process for the current customer (the reason for suspension may be to return to the store to add an item to the purchase, for example) and perform the registration process for the next customer. In other words, based on the operation of the store clerk, the POS terminal 20-1 displays a new registration screen for the next customer while retaining (storing) the display content (registration content) of the registration screen for the current customer. In the example shown in FIG. 17(A), there is one tab (tab area T1), but the POS terminal 20-1 displays a number of tabs according to the number of registration screens (number of customers) in progress (tab areas T1, T2, T3, ...), and switches the registration screen to be enabled (active) according to the operation (pressing) of the tab.

In the tab area T1, information that distinguishes the tab from other tabs (the number "1" in the example of FIG. 17(A)) is displayed. In addition, the tab area T1 is provided with a display field HR01 that displays the amount of money deposited by the customer. In addition to the above, various other information (described below) is also displayed in the tab area T1, although this is not shown in the example shown in FIG. 17(A).

Image GA02 at the bottom left of the screen shows the state of the other terminal (POS terminal 20-2) (specifically, that it is in normal mode). Image GA03 at the bottom left of the screen shows the state of the other terminal (POS terminal 20-3) (specifically, that it is in full self-service mode).

Figure 17 (B) shows the display contents on the customer display unit 205 in the initial state. In other words, when the POS terminal 20-1 is displaying the registration screen on the store clerk display unit 210 as shown in Figure 17 (A), it displays the small screen (small window) SG01 on the customer display unit 205 superimposed on the settlement screen (deposit screen) as shown in Figure 17 (B).

The small screen SG01 allows the customer to select a payment method. On the small screen SG01, the customer selects either cash, credit, or electronic money as the payment method. If the customer desires cash as the payment method, he or she may insert cash (a deposit) before selecting cash as the payment method on the small screen SG01. The POS terminal 20-1 will clear the small screen SG01 if any payment method is selected on the small screen SG01. Also, if cash is inserted before a payment method is selected on the small screen SG01, the POS terminal 20-1 will process this as cash being selected as the payment method and clear the small screen SG01.

When the POS terminal 20-1 is displaying the registration screen shown in FIG. 17(A) on the clerk display unit 210 and a can of beer is registered by the clerk, the POS terminal 20-1 displays a registration screen as shown in FIG. 18(A) on the clerk display unit 210.

In FIG. 18(A), the subtotal button BT10 at the bottom right of the screen is a button for instructing the end of product registration. The store clerk operates (touches) the subtotal button BT10 after product registration is complete.

The 20-2 register button BT12 is a button for specifying the 20-2 register (POS terminal 20-2). When the store clerk wants to specify the POS terminal 20-2 as the terminal to which registration information is to be sent, he or she operates the 20-2 register button BT12. The "(Normal)" displayed on the 20-2 register button BT12 indicates that the operating mode of the POS terminal 20-2 corresponding to the 20-2 register button BT12 is normal mode.

The 20-3 register button BT13 is a button for specifying the 20-3 register (POS terminal 20-3). When the store clerk wants to specify the POS terminal 20-3 as the terminal to which registration information is to be sent, he or she operates the 20-3 register button BT13. The "(Full self-service)" displayed on the 20-3 register button BT13 indicates that the operating mode of the POS terminal 20-3 corresponding to the 20-3 register button BT13 is the full self-service mode.

The receipt button BT15 is a button for issuing a receipt in the printing unit 213. The store clerk operates the receipt button BT15 when processing is to be performed on the POS terminal 20 that read the receipt (the POS terminal 20 on which the customer has had the receipt read).

When comparing a POS terminal 20 in normal mode with a POS terminal 20 in full self-service mode as a destination of registration information, a POS terminal 20 in full self-service mode is more preferable than a POS terminal 20 in normal mode as a destination of registration information. A POS terminal 20 in normal mode is basically operated by a store clerk (see Figs. 7 and 8), so there is a continuous process (e.g., registration process, customer service, etc.) and it is highly likely that the registration information cannot be processed immediately even if it is sent, and even if it is free (even if there is neither a store clerk nor a customer), it is basically preferable to keep it free so that customers who request support from a store clerk can be immediately served, whereas a POS terminal 20 in full self-service mode can send and process registration information immediately if there is no customer, and even if there is a customer, the above-mentioned problems are unlikely to occur because the process can be simply performed in order.

In view of the above, the clerk is notified as to whether or not a POS terminal 20 is preferable as a destination of the registration information, or which is more preferable when there are multiple destinations of the registration information. As an example, in FIG. 18(A), the outline of the 20-3 register button BT13 corresponding to the POS terminal 20-3 in the full self-service mode, which is a relatively preferable destination of the registration information, is shown in solid lines, and the outline of the 20-2 register button BT12 corresponding to the POS terminal 20-2 in the normal mode, which is a relatively unpreferable destination of the registration information, is shown in dashed lines. Note that the above-mentioned notification by the outline is only an example, and the notification mode is not limited as long as the clerk can recognize whether or not a POS terminal 20 is preferable as a destination of the registration information, or which is more preferable when there are multiple destinations of the registration information. For example, the background color of the button for the relatively unpreferable one may be grayed out, or a penalty mark or diagonal lines may be added to the entire button. Additionally, the display size, shape, and display position of the button may be varied depending on whether or not the POS terminal 20 is preferable as a destination for sending the registration information, and some information (such as a badge-like image saying "Preferred" or "Recommended") may be added to the button.

When the POS terminal 20-1 displays a registration screen such as that shown in FIG. 18(A) on the store clerk display unit 210, it displays the small screen SG01 on the customer display unit 205 superimposed on the settlement screen (deposit screen) as shown in FIG. 18(B). Note that in the settlement screen (deposit screen) of FIG. 17(B), no products were registered so the total amount was 0 yen, but in the settlement screen (deposit screen) of FIG. 18(B), a can of beer costing 215 yen has been registered so the total amount is 215.

When a customer inserts 500 yen while the registration screen in FIG. 18(A) is displayed on the store clerk display unit 210, the POS terminal 20-1 displays a registration screen such as that shown in FIG. 19(A) on the store clerk display unit 210.

Because the customer has inserted 500 yen, the number 500 is displayed in the display field HR01 in the upper right corner of the screen in FIG. 19(A). In addition, because the customer has inserted 500 yen, the payment is to be settled at the customer's own terminal (POS terminal 20-1), and so the buttons (20-2 register button BT12, 20-3 register button BT13, and bill button BT15) used to settle at other terminals (POS terminal 20-2, POS terminal 20-3) are not displayed (are erased).

When the POS terminal 20-1 displays a registration screen such as that shown in FIG. 19(A) on the store clerk display unit 210, it displays a settlement screen (deposit screen) such as that shown in FIG. 19(B) on the customer display unit 205. Note that the small screen SG01 is cleared because the customer has inserted 500 yen.

When the POS terminal 20-1 is displaying the registration screen in FIG. 19(A) on the clerk display unit 210 and the clerk registers the second product (asparagus) and the third product (seaweed bento), and the customer then inserts an additional 500 yen, the POS terminal 20-1 displays a registration screen as shown in FIG. 20(A) on the clerk display unit 210. As the customer has inserted an additional 500 yen, the display field HR01 in the upper right corner of the screen in FIG. 20(A) shows 1000.

When the POS terminal 20-1 displays a registration screen such as that shown in FIG. 20(A) on the store clerk display unit 210, it displays a settlement screen (deposit screen) such as that shown in FIG. 20(B) on the customer display unit 205.

When the POS terminal 20-1 is displaying the registration screen of FIG. 20(A) on the clerk display unit 210 and the clerk operates the subtotal button BT10, the clerk display unit 210 displays a small screen (small window) SG02 superimposed on the registration screen as shown in FIG. 21(A), and displays a settlement screen (deposit screen) as shown in FIG. 21(B) on the customer display unit 205. The small screen SG02 notifies the clerk of settlement-related information (total amount, amount deposited in the device (deposit amount)).

When the customer operates the Finish (receipt) button BT40 while the settlement screen (deposit screen) of FIG. 21 (B) is displayed on the customer display unit 205, the POS terminal 20-1 displays the message screen MG1 superimposed on the registration screen as shown in FIG. 22 (A) on the store clerk display unit 210, and displays the settlement screen (change screen) as shown in FIG. 22 (B) on the customer display unit 205.

The message screen MG1 notifies the store clerk about the change. The POS terminal 20-1 erases the message screen MG1 that is displayed superimposed on the registration screen without any operation by the store clerk (for example, automatically after a predetermined time has passed). The POS terminal 20-1 may also erase the message screen MG1 that is displayed superimposed on the registration screen in response to an operation by the store clerk (such as touching the message screen MG1).

Although not shown in Figure 22 onwards, the POS terminal 20-1 displays a checkout screen similar to that shown in Figure 16 (E) onwards on the customer display unit 205, and displays a message corresponding to the checkout screen on the store clerk display unit 210.

In the above explanation, the focus is on the overall processing in the POS terminal 20, and a state in which no processing is in progress (a state in which no product is registered, no cash is inserted, no payment type is selected, no gift certificates are registered, and no customer information is obtained) is referred to as the initial state; however, there may be cases in which the focus is on a portion of the processing and the state is referred to as the initial state. For example, the cash-inserted product registration state (a state in which products are registered, cash is inserted, no payment type is selected, no gift certificates are registered, and no customer information is obtained) cannot be called the initial state when the focus is on the overall processing, but it may be called the initial state when the focus is only on the state of the payment type selection. Also, it cannot be called the initial state when the focus is on the two states of the product registration state and the payment type selection state, but it may be called the initial state when the focus is on the two states of the payment type selection state and the gift certificate registration state.

In the example shown in FIG. 21, when the subtotal key is operated, the POS terminal 20-1 displays the small screen SG02 superimposed on the registration screen (FIG. 21(A)). However, when the subtotal key is operated, the POS terminal 20-1 may also display (switch to) a small screen that displays the information displayed on the small screen SG02 instead of the registration screen.

(An example of an operation mode switching process)
Next, an example of the operation mode switching process of the POS terminal 20 will be described with reference to Figures 23 and 24. Figure 23 is a flow chart showing an example of the operation mode switching process performed by a POS terminal 20 when the mode switching button has been pressed. Since each POS terminal 20 is provided with a mode switching button, the process shown in Figure 23 is started when the mode switching button is pressed in any POS terminal 20. The process shown in the flow chart in Figure 23 is started constantly (periodically at very short time intervals) in each POS terminal 20.

Step S201: The POS terminal 20 determines whether or not the mode switching button 211a has been pressed. If the mode switching button 211a has not been pressed, the POS terminal 20 proceeds to step S208. If the mode switching button 211a has been pressed, the POS terminal 20 proceeds to step S202.
Step S202: The POS terminal 20 transmits a mode switching command to the other POS terminals 20, and proceeds to step S203.

Step S203: The POS terminal 20 judges whether or not the terminal itself is in a process. The process here is, for example, a product registration process or a settlement process for accepting payment from a customer. If the POS terminal 20 is in a process, the POS terminal 20 proceeds to step S204. If the POS terminal 20 is not in a process, the POS terminal 20 proceeds to step S206.
Step S204: The POS terminal 20 notifies (displays) that the terminal is processing, and proceeds to step S205.
Step S205: The POS terminal 20 determines whether the currently running process has ended. The POS terminal 20 waits until the currently running process has ended, and when the currently running process has ended, the POS terminal 20 proceeds to step S206.

Step S206: The POS terminal 20 performs a mode switching process, and proceeds to step S207. The mode switching process is a process for switching to a mode different from the current mode, for example, a process for switching to one of a normal mode, a checkout-only mode, and a full self-service mode that is different from the current mode.
Step S207: The POS terminal 20 notifies the user that the mode switching of the terminal has been completed, and proceeds to step S208.

Step S208: The POS terminal 20 determines whether or not it has received information indicating that processing is in progress from the other POS terminal 20 to which the mode switching command was sent. If the POS terminal 20 has not received information indicating that processing is in progress from the other POS terminal 20, it proceeds to step S210. If the POS terminal 20 has received information indicating that processing is in progress from the other POS terminal 20, it proceeds to step S209.

Step S209: The POS terminal 20 notifies the other POS terminals 20 that processing is in progress, and proceeds to step S210.
Step S210: The POS terminal 20 determines whether or not it has received information indicating that mode switching has been completed from the other POS terminal 20. If the POS terminal 20 has not received information indicating that mode switching has been completed from the other POS terminal 20, it ends the series of processes. If the POS terminal 20 has received information indicating that mode switching has been completed from the other POS terminal 20, it proceeds to step S211.
Step S211: The POS terminal 20 notifies the other POS terminals 20 that the mode switching has been completed, and ends the series of processes.

Next, the mode switching process performed by a POS terminal 20 that has received a mode switching command will be described with reference to FIG. 24. FIG. 24 is a flowchart showing an example of the operation mode switching process performed by a POS terminal 20 that has received a mode switching command. The process shown in the flowchart in FIG. 24 is constantly started (periodically at very short time intervals) in each POS terminal 20.

Step S221: The POS terminal 20 determines whether or not a mode switching command has been received. If the POS terminal 20 has not received a mode switching command, it ends the series of processes. If the POS terminal 20 has received a mode switching command, it proceeds to step S222.
Step S222: The POS terminal 20 judges whether or not the terminal itself is in a process. The process here is, for example, a product registration process or a settlement process for accepting payment from a customer. If the POS terminal 20 is in a process, the POS terminal 20 proceeds to step S223. If the POS terminal 20 is not in a process, the POS terminal 20 proceeds to step S225.

Step S223: The POS terminal 20 transmits a message to the POS terminal 20 that transmitted the mode switching command that the processing is in progress, and proceeds to step S224.
Step S224: The POS terminal 20 determines whether the currently running process has ended. The POS terminal 20 waits until the currently running process has ended, and when the currently running process has ended, the POS terminal 20 proceeds to step S225.

Step S225: The POS terminal 20 performs a mode switching process, and proceeds to step S226.
Step S226: The POS terminal 20 transmits information indicating that the mode switching has been completed to the POS terminal 20 that transmitted the mode switching command, and proceeds to step S227.
Step S227: The POS terminal 20 notifies the user that the mode switching of the terminal has been completed, and ends the series of processes.

(Regarding the transition of registration methods when registering products)
Next, an example of the transition of the registration method when the POS terminal 20 registers an item will be described with reference to FIG. 25. FIG. 25 is an explanatory diagram showing an example of the transition of the registration method when the POS terminal 20 registers an item. In FIG. 25, the transition of the registration method differs depending on the operator (e.g., customer, store clerk α, store clerk β). As shown in (A1), (B1), and (C2) of FIG. 25, the POS terminal 20, regardless of the operator, first starts registering the item by barcode scanning, which reads a symbol code (hereinafter referred to as a "barcode") attached to the item. The barcode scan is performed by the customer side scanner unit 206 or the store clerk side scanner unit 212 scanning the barcode.

(Transition of registration method for customers)
As shown in (A1) of Fig. 25, when a customer registers a product, the POS terminal 20 performs barcode scanning until the customer code reading time T1 has elapsed. When a barcode is read by barcode scanning, the POS terminal 20 identifies the product corresponding to the read barcode and registers the identified product. However, the POS terminal 20 may not be able to read the barcode even after the customer code reading time T1 has elapsed since starting the barcode scan. Examples of cases in which the barcode cannot be read include cases where the barcode is written in different positions for each product, such as on the top, side, or bottom of the product, or where the barcode is written in a difficult-to-see position, such as next to the product's ingredient label, causing the customer to have a hard time finding the barcode.

When the customer code reading time T1 has elapsed since the barcode scan was started, the POS terminal 20 identifies the product by object recognition scanning as shown in (A2) and registers the identified product. Object recognition scanning is a well-known technology, so a detailed explanation is omitted, but it will be briefly explained below. Object recognition scanning is a method of identifying (registering) a product by extracting features from a captured image and determining the similarity of the features. In other words, object recognition scanning is a method of registering a product based on the image capture results (feature of the product) such as the shape of the product. Specifically, object recognition scanning is performed by the customer side scanner unit 206 (the clerk side scanner unit 212 when operated by a clerk in normal mode) capturing an image of the product using the function of the object recognition scanner. In addition, object recognition scanning can also extract character information from a character image attached to the product and identify the product corresponding to the character information.

Here, the POS terminal 20 prioritizes product registration by barcode scanning over product registration by object recognition scanning. However, the process of identifying a product may be performed simultaneously with the barcode scan and the object recognition scan, or may be performed at different times. The process of identifying a product simultaneously means, for example, that the POS terminal 20 starts an imaging process to identify a product by barcode and identify a product by object recognition scanning simultaneously (almost simultaneously). Then, when a product cannot be identified by a barcode (for example, when a predetermined set time has elapsed or when an operation to switch to registering a product by object recognition scanning has been received), the POS terminal 20 registers the product identified by object recognition scanning. In other words, the POS terminal 20 also performs the process of identifying a product by object recognition scanning, regardless of whether or not the product can be registered by barcode scanning.

On the other hand, when the process of identifying a product is performed at a different timing, for example, when the POS terminal 20 registers a product, it starts an imaging process and first identifies the product by barcode scanning. Then, if the product cannot be identified by the barcode (for example, if a specific set time has elapsed or if an operation to switch to registering the product by object recognition scanning has been received), the POS terminal 20 starts identifying the product by object recognition scanning. In other words, if the POS terminal 20 is able to identify the product by barcode scanning, it will not perform the process of identifying the product by object recognition scanning.

When registering a product using an object recognition scan, for example, if a product cannot be uniquely identified, multiple products (e.g., apples and pears) may be identified. In this case, the POS terminal 20 may display the multiple products as selection candidates (registration candidates) and register the product selected by the operator. Regardless of whether the process of identifying a product using a barcode scan and the process of identifying a product using an object recognition scan are performed at different times or at the same time, the selection candidates (registration candidates) will be displayed when a product cannot be identified by a barcode.

By performing the process of identifying a product by barcode scanning and the process of identifying a product by object recognition scanning at the same time, it is possible to quickly display selection candidates when a product cannot be identified by barcode scanning and the process switches to registering the product by object recognition scanning. In addition, by performing the process of identifying a product by barcode scanning and the process of identifying a product by object recognition scanning at different times, product identification (identification process) is not performed by object recognition scanning when a product is identified (registered) by barcode scanning, so the processing load on the POS terminal 20 when identifying (registering) a product by barcode scanning can be reduced.

In this embodiment, the customer scanner unit 206 and the clerk scanner unit 212 are each capable of performing object recognition scanning and barcode scanning. However, different scanner units may be used for object recognition scanning and barcode scanning. If the POS terminal 20 does not have the object recognition scanning function, the POS terminal 20 may register products by barcode scanning and by using a preset key. If the POS terminal 20 does not have the barcode scanning function, the POS terminal 20 may register products by object recognition scanning and by using a preset key. In this embodiment, the POS terminal 20 has two display units, the customer display unit 205 and the clerk display unit 210, but this is not limited to the above and the POS terminal 20 may have only one display unit.

In object recognition scanning, if the POS terminal 20 can uniquely identify the product (if there is one selection candidate), it may register the identified product as is, or may register the product after receiving confirmation from the operator. On the other hand, if the POS terminal 20 cannot uniquely identify the product, i.e., if there are multiple selection candidates, it registers the product by accepting the selection of one product from the multiple selection candidates.

In addition, the POS terminal 20 may not be able to register products even by object recognition scanning. Specifically, there may be cases where there are too many selection candidates, where a selection candidate cannot be identified (where the number of selection candidates is 0), where a selection is accepted from the customer to display a preset key, or where a predetermined time has passed since the selection candidates were displayed. In these cases, the POS terminal 20 registers products by displaying a customer preset key (easy preset key) as shown in (A3) and accepting a product selection using the customer preset key. The customer preset key is displayed in a display mode and screen transition that allows even customers who have never handled a POS terminal 20 to easily register products.

(Transition of registration method for store clerk α)
As shown in (B1), when a product is registered by clerk α (a normal clerk), the POS terminal 20 scans the barcode until the clerk code reading time T2 has elapsed. The POS terminal 20 may not be able to read the barcode even after the clerk code reading time T2 (>T1) has elapsed since starting the barcode scan. An example of a case in which the barcode cannot be read is when, like in the case of a customer, the position of the barcode varies depending on the product, and the clerk has difficulty finding the barcode. In this case, the POS terminal 20 displays the clerk preset keys as shown in (B2), and registers the product by accepting the selection of the product using the clerk preset keys.

Here, in the barcode scan, the clerk code reading time T2 when clerk α registers an item is longer than the customer code reading time T1 when a customer registers an item. This is because clerk α knows the position of the barcode for each item, so even if it takes some time (even if it is clerk code reading time T2), he or she can accurately register the item using the barcode. On the other hand, customers often do not know the position of the barcode for each item, so it takes time to search for the barcode, which means it takes time to register the item, and the product registration operation may be a burden for the customer. Therefore, in the case of a customer, the time required for barcode scanning is set to customer code reading time T1, which is shorter than clerk code reading time T2, so that the customer can move on to object recognition scanning early. This reduces the burden on the customer of product registration caused by the time required for the registration operation.

There are cases where the POS terminal 20 is unable to register an item even using the preset key shown in (B2). Specifically, this may occur when a store clerk presses a button to perform an object recognition scan, or when a predetermined time has passed since the preset key was displayed. In this case, as shown in (B3), the POS terminal 20 registers the item using an object recognition scan.

(Transition of registration method for clerk β)
As shown in (C1), when registering an item by clerk β (e.g., a specific clerk such as a new clerk), the POS terminal 20 scans the barcode until the specific clerk code reading time T3 has elapsed. The POS terminal 20 may not be able to read the barcode even if the specific clerk code reading time T3 (<T2) has elapsed since starting the barcode scan. In this case, the POS terminal 20 registers the item by object recognition scanning, as shown in (C2).

Here, the specific clerk code reading time T3 when clerk β registers is shorter than the clerk code reading time T2 when clerk α registers. In the case of clerk β (a new clerk), compared to clerk α (a regular clerk), clerk β does not know the location of the barcode of each product, or is slow in registering, so it takes time to search for the barcode, which may result in customers having to wait for a long time. Therefore, in the case of clerk β, the time required for barcode scanning is set to specific clerk code reading time T3, which is shorter than clerk code reading time T2, so that the system switches to object recognition scanning earlier. This makes it possible to reduce the time required for product registration in the case of clerk β.

The customer code reading time T1 when a customer registers is generally shorter than the store clerk code reading time T2 and the specific store clerk code reading time T3. However, there are customers who know the barcodes of each product, and customers who wish to register products using barcodes even if it takes time. For this reason, it is possible to change the customer code reading time T1 to a time longer than the normal customer code reading time T1, for example, at the customer's choice. On the other hand, there are customers who require time to register using barcode scanning, and wish to switch to object recognition scanning early. For this reason, it is possible to change the customer code reading time T1 to a time shorter than the normal customer code reading time T1, for example, at the customer's choice.

However, it is preferable to register products using barcodes, as this allows for the most accurate product registration (with fewer errors). For example, registration using object recognition scanning may not be able to distinguish between apples and pears, or may not be able to distinguish between different varieties of apples. Furthermore, if the product cannot be distinguished using object recognition scanning, the operator (customer or store clerk) is ultimately responsible for selecting the product, which may result in incorrect registration due to operator error.

Even when registering using a preset key, there are cases where an operator makes an incorrect registration. The POS terminal 20 of this embodiment can prevent an operator from incorrectly registering a product by first registering the product using a barcode scan. In addition, the POS terminal 20 can register products using an object recognition scan or a preset key depending on the operator and the code reading time, so it can optimally support product registration for each operator.

In (C2), if the POS terminal 20 cannot uniquely identify the product, i.e., if there are multiple selection candidates, it registers the product by accepting the selection of one product from the multiple selection candidates. There are also cases where the POS terminal 20 cannot register the product even by object recognition scanning. Specifically, there are cases where there are too many selection candidates, where the selection candidates cannot be identified, where a selection is accepted from the customer to display a preset key, or where a predetermined time has passed since the selection candidates were displayed. In these cases, the POS terminal 20 registers the product by displaying a preset key for the store clerk or a preset key for the customer, as shown in (C3), and accepting the selection of the product using the displayed preset key.

The preset keys displayed in (C3) may be set by the store clerk to display either the store clerk preset keys or the customer preset keys (easy preset keys). The preset keys displayed in (C3) may be set according to the specific store clerk code reading time T3. Specifically, if the specific store clerk code reading time T3 is close to the store clerk code reading time T2, the store clerk preset keys may be displayed, and if the specific store clerk code reading time T3 is close to the customer code reading time T1, the customer preset keys may be displayed.

The POS terminal 20 of this embodiment can perform barcode scanning, object recognition scanning, and product registration using preset keys depending on the operator and code reading time, so it can optimally support product registration for each operator.

(An example of the transition of the registration screen when a store clerk registers a product)
Next, an example of the transition of the registration screen when the sales clerk registers a product will be described with reference to Figs. 26 to 30. Figs. 26 and 27 are explanatory diagrams showing an example of the transition of the registration screen on the sales clerk display unit 210 when the sales clerk registers a product. Note that the transition of the registration screen when the sales clerk registers a product is shown in (A) of each of Figs. 17 to 22, but here, a different screen example will be described. However, it may be possible to set which of the screens shown in (A) of each of Figs. 17 to 22 and the screens described below to be displayed by the sales clerk's selection.

Furthermore, in the following, the registration screen for the store clerk and the registration screen for the customer (see Figures 31 to 33) are described as being similar screens, specifically, the display positions of the registered products and the display positions of the captured images are described as being similar. However, the registration screen for the store clerk and the registration screen for the customer may be different screens, specifically, for example, the display positions of the registered products and the captured images may be different.

First, using Figures 26 and 27, we will explain the transition of the registration screen when registering a product that has a uniform shape, such as instant noodles, and that clearly has a barcode attached. Figure 26 (A) shows a standby screen that is displayed on the store clerk display unit 210 before the product is registered. The product imaged by the store clerk scanner unit 212 is displayed in the imaging area 2601 of Figure 26 (A).

(B) in FIG. 26 shows a screen when an image of a product is captured by the store clerk scanner unit 212 (the presence of the product is detected) and a barcode scan is performed. Specifically, the image capturing area 2601 displays an image (e.g., a video) of a product being brought close to the store clerk scanner unit 212 to have the store clerk scanner unit 212 read the barcode attached to the product. Details will be described later using FIG. 28, but preset keys may be displayed on the standby screen shown in (A) or the screen during barcode scanning shown in (B). Specifically, for example, the preset keys and the image capturing area 2601 may be superimposed and the image capturing area 2601 may be displayed in front of the preset keys.

In addition, during the barcode scan shown in FIG. 26(B), the image of the product does not have to be displayed in the imaging area 2601. In this case, for example, a notification screen indicating "Please allow the barcode to be read" may be constantly displayed in the imaging area 2601. When the store clerk scanner unit 212 reads the barcode in FIG. 26(B), the screen transitions to the screen shown in FIG. 26(C).

Figure 26 (C) shows a screen in which the store clerk scanner unit 212 has read the barcode and the product corresponding to that barcode has been registered. Furthermore, product display area 2604 in Figure 26 (C) displays information about the registered product. This completes the registration of the product "Sesame Ramen," for example. The store clerk then picks up the next product and brings it close to the store clerk scanner unit 212, registering the next product in the same manner.

On the other hand, in FIG. 26B, suppose that after the store clerk scanner unit 212 detects a product, it is unable to read the barcode attached to the product and the code reading time (store clerk code reading time T2: see FIG. 25) has elapsed. In this case, the screen transitions to FIG. 27D. Note that for products that are registered frequently (big sellers), the store clerk knows the position of the barcode, so the code reading time rarely elapses, but when registering a product that is registered infrequently and where the position of the code is difficult to understand, the code reading time may elapse.

The screen shown in FIG. 27(D) displays preset keys 2605. Preset keys 2605 are preset keys for store clerks. Preset keys 2605 have a button layout and screen transitions that are more functional and easier to operate than preset keys for customers, for example, from the viewpoint that store clerks can grasp (remember) the positions of the selection buttons of the preset keys. Specifically, for example, preset keys 2605 have a button layout that is easy for store clerks to press, and symbols and abbreviations are used for the display content and displayed buttons.

Furthermore, registration using preset keys simplifies the procedure for narrowing down product searches. Let us say that the store clerk operates preset key 2605 to select the product "Sesame Ramen." In this case, as shown in FIG. 27(E), product registration is completed, and information about the registered product is displayed in product display area 2604. Note that FIG. 27(E) is, for example, the same screen as FIG. 26(C).

On the other hand, there may be cases where the store clerk is unable to find the product "Sesame Ramen" among the preset keys 2605 and is therefore unable to select the product "Sesame Ramen." In this case, for example, if the store clerk presses the object recognition scan display button 2606 to display the object recognition scan, or if a predetermined time has passed since the screen shown in FIG. 27(D) was displayed, the screen will transition to the screen shown in FIG. 27(F). Note that the predetermined time may be a fixed time set in advance, or may be a time set for each store clerk.

The screen shown in FIG. 27(F) displays selection candidates based on the imaging results of the object recognition scan. When the store clerk presses the confirmation button indicating "Yes" in FIG. 27(F), product registration is completed as shown in FIG. 27(E). When the store clerk registers a product, for products that have a standardized shape such as instant noodles and have a barcode attached, the product can be uniquely identified by image analysis of the characters or the like attached to the product in the object recognition scan. In this way, for products that can be uniquely identified, registration candidates may be automatically registered by the object recognition scan without receiving confirmation from the operator using the confirmation button.

On the other hand, if the store clerk presses a confirmation button indicating "No," then, for example, one of the following actions a to c may be carried out.
If there are other registration candidates based on the object recognition scan, the other registration candidates are displayed and the store clerk can select one.
b. Start over from the beginning (return to the screen in FIG. 26B and perform the barcode scan again).
c. Return to the previous screen (return to the screen shown in FIG. 27(D) and perform input using the preset keys).

As shown in Figures 26 and 27, when a store clerk registers an item, the POS terminal 20 first allows the item to be registered by barcode scanning (Figures 26B and 26C), and if the item cannot be registered by barcode scanning, the item is registered by a preset key (Figure 27D). This allows the store clerk to quickly register an item because it is possible to switch to registration by preset key when the item cannot be registered by barcode scanning.

(Another example of a screen displayed on the store clerk display unit 210 during barcode scanning)
Here, another example of the screen displayed on the store clerk display unit 210 during barcode scanning will be described with reference to Fig. 28. Fig. 28 is an explanatory diagram showing another example of the screen displayed on the store clerk display unit 210 during barcode scanning. Note that (A1), (A2), and (A3) in Fig. 28 will all be described as screens during barcode scanning, but the same applies to screens during standby.

The screen during barcode scanning shown in (A1) of FIG. 28 displays the preset keys 2605 shown in (D) of FIG. 27. When each area of the preset keys 2605 is touched, the product corresponding to the touched area is registered even before the code reading time has elapsed. According to the screen shown in (A1), the preset keys 2605 can be displayed without waiting for the code reading time for barcode scanning to elapse. This allows the store clerk to select, depending on the product, whether to register the product by barcode scanning or by using the preset keys 2605. This allows the store clerk to quickly register the product.

In addition, in (A1), the imaging area 2601 is not displayed, and a selection button 2801 for displaying the imaging area 2601 is displayed. In (A1), when the selection button 2801 is pressed, the imaging area 2601 is displayed. Note that, as shown in (A1), when the imaging area 2601 is not displayed, object recognition scanning may be prohibited. This can reduce the processing load on the POS terminal 20.

In addition, in (A1) of FIG. 28, the imaging area 2601 is not displayed, but the imaging area 2601 may be displayed on a small screen. Also, when the small screen is touched, the imaging area 2601 may be displayed in the normal size (see FIG. 26).

In addition, the preset key 2802 displayed in a small screen during barcode scanning shown in (A2) of FIG. 28 is displayed. Even before the code reading time has elapsed, if the product shown on the preset key 2802 is touched, the touched product is registered. In addition, when the preset key 2802 is touched, an enlarged preset key 2605 may be displayed as shown in (A1). The size of the display area of the preset key display button 2803 may be changeable to any size by the operation of the store clerk. Specifically, the preset key display button 2803 may be enlarged by touching and pinching out the store clerk display unit 210 (touching the store clerk display unit 210 with two fingers and moving them so as to spread the space between the two fingers).

Similarly, the size of the display area of the imaging area 2601 may be changed to any size by the store clerk's operation. Also, in (A2) of FIG. 28, the preset key 2802 is displayed on a small screen, but instead of displaying it on a small screen, for example, the imaging area 2601 may be displayed superimposed (displayed in front) on the preset key 2605 shown in (A1). In this case, when the store clerk touches the imaging area 2601, the preset key 2605 is displayed in front of the imaging area 2601, and operations for each button displayed on the preset key 2605 may be enabled.

The screen shown in (A2) allows the store clerk to visually confirm the product registration operation by imaging. Also, similar to the screen in (A1), the store clerk can select, depending on the product, whether to register the product by scanning a barcode or by using the preset key display button 2803.

In addition, the screen during barcode scanning shown in FIG. 28 (A3) displays a preset key display button 2803 for displaying preset keys. When the preset key display button 2803 is pressed, for example, the preset keys 2605 displayed enlarged as shown in FIG. 28 (A1) may be displayed, or the preset keys 2802 displayed in a small screen as shown in (A2) may be displayed. According to the screen shown in (A3), the preset keys can be displayed by the store clerk's selection, and products using the preset keys can be registered.

(Another example of the transition of the registration screen when a store clerk registers a product)
Next, the transition of the registration screen when registering products that are not uniform in shape and are not clearly barcoded, such as vegetables, will be described with reference to Figures 29 and 30. Figures 29 and 30 are explanatory diagrams showing another example of the transition of the registration screen on the store clerk display unit 210 when a store clerk registers a product. In the following description, the same contents as those described with reference to Figures 26 to 29 will be denoted by the same reference numerals, and the description will be omitted.

Figure 29 (A) shows a standby screen displayed on the store clerk display unit 210 before the product is registered. Figure 29 (B) shows the screen when the product is imaged (detected) by the store clerk scanner unit 212 and the barcode is scanned. Here, in the case of vegetables and fruits, the barcode may or may not be attached. Specifically, for example, depending on the product, the barcode may be attached to the tape binding the product or the product wrapping, or there may be no tape or wrapping and no barcode.

In FIG. 29(B), if the POS terminal 20 determines that the captured product is a vegetable or fruit as a result of the object recognition scan, it displays a selection button 2901 indicating "No barcode" since there is a possibility that the product does not have a barcode. Note that the selection button 2901 may be displayed from the beginning on the standby screen shown in FIG. 29(A) or FIG. 26(A).

For example, on the screen during barcode scanning shown in FIG. 29(B), suppose that a barcode is written on tape attached to the product "Chinese cabbage," and the store clerk's scanner unit 212 reads the barcode. In this case, the screen transitions to the screen shown in FIG. 29(C), and the product is registered. Then, the product display area 2604 in FIG. 29(C) displays a message indicating that the product "1 head of Chinese cabbage" has been registered. The store clerk then picks up the next product and brings it close to the store clerk's scanner unit 212, registering the next product in the same manner.

On the other hand, in FIG. 29B, suppose that after the store clerk scanner unit 212 detects the product, it is unable to read the barcode attached to the product, the code reading time (store clerk code reading time T2 when the store clerk registers: see FIG. 25) has elapsed, and the selection button 2901 indicating "No barcode" is selected. In this case, the screen transitions to FIG. 30D.

The screen shown in FIG. 30(D) displays preset key 2605. Let us assume that the store clerk operates preset key 2605 to select the product "1 head of Chinese cabbage." In this case, as shown in FIG. 30(E), product registration is completed, and information about the registered product is displayed in product display area 2604. Note that FIG. 30(E) is, for example, the same screen as FIG. 29(C).

On the other hand, there are cases where the store clerk is unable to select (find) the product "1 head of Chinese cabbage" by operating the preset key 2605. In this case, if the object recognition scan display button 2606 for displaying the object recognition scan is pressed, or a predetermined time has elapsed on the screen shown in FIG. 30(D), the screen will transition to the screen shown in FIG. 30(F).

The screen shown in FIG. 30 (F) displays selection options based on the imaging results of the object recognition scan. When the store clerk presses the confirmation button indicating "Yes," product registration is completed, as shown in FIG. 30 (E). Note that it may be difficult to uniquely identify products that do not have a uniform shape, such as vegetables, and that are not clearly barcoded. For such products, confirmation by the store clerk using the confirmation button may be accepted.

When the store clerk presses the confirmation button indicating "No" in FIG. 30(F), the screen transitions to the screen shown in FIG. 30(G). The screen shown in FIG. 30(G) displays multiple selection candidates. When one of the multiple selection candidates is accepted, the accepted product is registered.

Also, in FIG. 30(G), a button that accepts the request to display the preset keys and a button that indicates a return to the beginning are displayed. When the button that accepts the request to display the preset keys is pressed, the screen returns to the screen that displays the preset keys 2605 shown in FIG. 30(D). When the button that indicates a return to the beginning is pressed, the screen returns to the screen shown in FIG. 29(A).

In addition, in FIG. 30 (G), a button for displaying a preset key for a customer may be displayed, and pressing the button may display the preset key for a customer. This makes it possible to register an item using the preset key for a customer when an item cannot be registered using any of the barcode scan, the preset key for a store clerk, and the object recognition scan.

(An example of the transition of the registration screen when a customer registers a product)
Next, an example of the transition of the registration screen when a customer registers a product will be described with reference to Figures 31 to 34. First, with reference to Figure 31, the transition of the registration screen when registering a product that has a standardized shape such as instant noodles and that clearly has a barcode attached will be described.

Figure 31 is an explanatory diagram showing an example of the transition of the registration screen on the customer display unit 205 when a customer registers an item. Note that the transition of the registration screen when a customer registers an item is shown in Figures 15 and 16, but here, a different screen example will be described. Note that it may be possible for the store clerk or customer to select whether to display the screens shown in Figures 15 and 16 or the screen described below.

Figure 31 (A) shows a standby screen displayed on the customer display unit 205 before registering a product. The image of the product captured by the customer scanner unit 206 is displayed in the image capture area 3101 of Figure 31 (A). Figure 31 (A) also shows a store clerk call button 3102. When the store clerk call button 3102 is pressed, a notification to that effect is sent to the POS terminal 20 where the store clerk is present, the store controller 10, etc., and the store clerk can be called. Note that the key operation unit 211 also has a button for calling a store clerk, and a store clerk can also be called by pressing this button.

Figure 31 (B) shows the screen when the customer-side scanner unit 206 captures an image of a product (detects the presence of a product) and scans the barcode. Specifically, the imaging area 3101 displays an image (e.g., a video) of a customer bringing a product close to the customer-side scanner unit 206 to have the customer-side scanner unit 206 read the barcode attached to the product. In Figures 31 (A) and (B) the customer-side display unit 205 displays a message urging the customer to have the barcode read, or, if the barcode cannot be recognized, to turn the product in their hand to have the barcode read.

Incidentally, on the standby screen or the screen during barcode scanning on the customer display unit 205, the preset keys 2605 (2802) are not displayed, and the imaging area 2601 is not reduced, as shown on the standby screen or the screen during barcode scanning on the store clerk display unit 210 (see FIG. 28). This allows the customer to start registering a product by scanning the barcode.

When the customer-side scanner unit 206 reads the barcode in FIG. 31(B), the screen transitions to that shown in FIG. 31(C). FIG. 31(C) shows a screen in which the customer-side scanner unit 206 has read a barcode and the product corresponding to that barcode has been registered. Furthermore, information about the registered product is displayed in the product display area 3104 in FIG. 31(C). This completes the registration of the product "Sesame Ramen," for example. The customer then picks up the next product and brings it close to the customer-side scanner unit 206, thereby registering the next product in the same manner.

On the other hand, in FIG. 31(B), suppose that after the customer-side scanner unit 206 detects a product, it is unable to read the barcode attached to the product and the code reading time (customer code reading time T1 when a customer registers: see FIG. 25) has elapsed. In this case, the screen transitions to FIG. 31(D). The screen shown in FIG. 31(D) displays selection options based on the imaging results of the object recognition scan.

When the customer presses the confirmation button indicating "Yes" in FIG. 31(D), the product registration is completed as shown in FIG. 31(C). On the other hand, when the customer presses the confirmation button indicating "No" in FIG. 31(D), the screen transitions to the screen shown in FIG. 34(A) (the simple preset key screen).

(Another example of the transition of the registration screen when a customer registers a product)
Next, the transition of the registration screen when registering products that are not uniform in shape and are not clearly barcoded, such as vegetables, will be described with reference to Figures 32 and 33. Figures 32 and 33 are explanatory diagrams showing another example of the transition of the registration screen when a customer registers a product. In the following description, the same reference numerals are used for the parts described with reference to Figure 31, and the description will be omitted.

Figure 32 (A) shows a standby screen displayed on the customer display unit 205 before the product is registered. Figure 32 (B) shows a screen when the product is imaged (detected) by the customer scanner unit 206 and the barcode is scanned. In Figure 32 (B), if the POS terminal 20 determines that the product is a vegetable or fruit as a result of image analysis of the product, it displays a selection button 3201 indicating "no barcode" since there is a possibility that the product does not have a barcode. Note that selection button 3201 may be displayed from the beginning on the standby screen shown in Figure 32 (A).

For example, on the screen during barcode scanning shown in FIG. 32(B), suppose that a barcode is written on the tape attached to the product "Chinese cabbage," and the customer-side scanner unit 206 reads the barcode. In this case, the screen transitions to the screen shown in FIG. 32(C), and the product is registered. Then, the product display area 3104 in FIG. 31(C) displays a message indicating that the product "1 head of Chinese cabbage" has been registered. The customer then picks up the next product and brings it close to the customer-side scanner unit 206, thereby registering the next product in the same manner.

On the other hand, in FIG. 32(B), suppose that after the customer-side scanner unit 206 detects a product, it is unable to read the barcode attached to the product, and the code reading time (customer code reading time T1 when a customer registers: see FIG. 25) has elapsed, or the selection button 3201 indicating "No barcode" has been selected. In this case, the screen transitions to FIG. 33(D). Also, if the search targets cannot be narrowed down completely, the screen transitions to the screen shown in FIG. 34(A) (customer preset key screen).

The screen shown in Figure 33 (D) displays selection options based on the imaging results (feature values of the product) obtained by the object recognition scan. When the customer presses the confirmation button indicating "Yes," product registration is completed, as shown in Figure 33 (E). Note that Figure 33 (E) is, for example, the same screen as Figure 32 (C). On the other hand, when the customer presses the confirmation button indicating "No" in Figure 33 (D), the screen transitions to the screen shown in Figure 33 (F).

The screen shown in FIG. 33(F) displays multiple selection candidates. When one of the multiple selection candidates is accepted, the accepted product is registered. On the other hand, when the customer presses the preset key transition button 3301 indicating "search by key" by the confirmation button, the screen transitions to the screen shown in FIG. 34(A) (customer preset key screen). Note that the screen may transition to the screen shown in FIG. 34(A) (customer preset key screen) when a predetermined time has passed since the selection candidates based on the image capture results by the object recognition scan shown in FIG. 33(D) were displayed, or when a predetermined time has passed since the multiple selection candidates shown in FIG. 33(F) were displayed.

(An example of the display screen of the preset key when a customer registers a product)
Fig. 34 is an explanatory diagram showing an example of a display screen of a preset key when a customer registers a product. The screen shown in Fig. 34 (A) shows a display screen of a preset key for customers (easy preset key). Compared with the preset key for store clerks (see Fig. 27 (D)), the preset key for customers is a display that allows even customers who are unfamiliar with the POS terminal 20 to easily register a product. For example, even if the type of product is unknown, a search button is displayed so that the product can be searched for based on its characteristics (color or shape).

In FIG. 34(A), for example, the purchase history is displayed on the customer display unit 205. The display order can be set arbitrarily, such as by code, purchase quantity, or department code. In addition, keywords such as product color, product group (for example, groups that are easy for customers to understand, such as vegetables and fruits), shape, color, and seasonal items are displayed in a selectable manner. Specifically, FIG. 34(A) displays selection buttons indicating the product color and the product type, such as vegetables or bread. This allows customers to register products by selecting the product color, even if it is unclear whether the product is a vegetable or a fruit (for example, lemon, watermelon, chestnut, etc.).

In FIG. 34(A), for example, when the "vegetable" category is selected, the screen transitions to the screen shown in FIG. 34(B). In FIG. 34(B), any product in the "vegetable" category is displayed as selectable. When the customer selects any product in FIG. 34(B), the selected product is registered.

In addition, in (A) and (B) of FIG. 34, a special button 3400 is displayed. When the special button 3400 is pressed, for example, a question may be entered to display an answer showing a solution procedure, or a store clerk may be called. When the special button 3400 is pressed to call a store clerk, a different notification may be sent to the store clerk than the normal store clerk call button 3102 (see FIG. 31, etc.). Specifically, when the special button 3400 is pressed, the POS terminal 20 where the store clerk is present, the store controller 10, etc. are notified that the product cannot be registered in the customer's preset key registration operation. This allows the store clerk to respond to the customer by anticipating a problem with registration using the customer's preset key. For example, a store clerk who is familiar with the operation of the customer's preset key can respond to the customer, and the problem can be quickly solved.

When the clerk call button 3102 or special button 3400 is pressed and the clerk reaches the POS terminal 20 that was called, the clerk can register the product by following the screen displayed on the customer side display unit 205. However, from the perspective of the POS terminal 20 identifying the clerk who assisted the customer and managing the work of each clerk, the clerk may assist the customer by having the POS terminal 20 read the clerk code on his or her name tag. In this case, the POS terminal 20 will continue to display the display mode and screen transitions for customers when registration is being performed on the customer side display unit 205 (when in full self mode).

As a result, when a store clerk is assisting a customer, the display format and screen transitions are displayed for customers, making it possible to instruct the customer on the product registration procedure and to prevent the customer from becoming suspicious that the store clerk may have registered the product without their permission. Note that in this embodiment, when a store clerk is assisting a customer, the POS terminal 20 continues to display the display format and screen transitions for customers, but sets the code reading time according to the store clerk and registers the product.

The method by which the POS terminal 20 identifies a store clerk (for example, the method of logging in or out) is not limited to reading the store clerk code, but may involve inputting a password set for each store clerk, or, if the POS terminal 20 is equipped with a reader for short-range wireless communication, the reader may be used to detect an employee ID tag (RFID tag or NFC tag) that stores the store clerk's ID information.

Furthermore, when a sales clerk is assisting a customer, the display mode and screen transitions are not limited to being continuously displayed in the customer mode. For example, when a sales clerk is assisting a customer, the display mode and screen transitions may be switched to those for sales clerks, and specifically, for example, preset keys for sales clerks may be displayed. In other words, in full self-service mode, when a sales clerk performs registration on the customer-side display unit 205, it is also possible to display in the display mode and screen transitions for sales clerks. As a result, when a sales clerk is assisting a customer, the display screen of the customer-side display unit 205 can be set to the optimal display mode and screen transitions for the sales clerk, which helps the sales clerk to register products quickly and accurately.

Although not shown, in normal mode, in the case of a specific clerk, such as a new clerk, the POS terminal 20 displays a display screen on the clerk display unit 210 that is similar to the display mode and screen transitions displayed on the customer display unit 205. However, in the case of a new clerk, the code reading time until the barcode scan switches to the object recognition scan is set to be shorter than that for a customer. In addition, in the case of a new clerk, the clerk call button 3102 and special button 3400 may not be displayed, or may be displayed from the viewpoint of providing immediate support to the new clerk.

(Processing performed by the POS terminal 20)
Next, various processes performed by the POS terminal 20 will be described with reference to Figures 35A, 35B, 36A and 36B.

(An example of a product registration process performed by the POS terminal 20 on the store clerk side)
35A and 35B are flow charts showing an example of a store clerk-side product registration process performed by the POS terminal 20. FIG.
Step S301: The POS terminal 20 determines whether the clerk scanner unit 212 has detected a product (started capturing an image of the product). If the clerk scanner unit 212 does not detect a product, the POS terminal 20 waits. If the clerk scanner unit 212 detects a product, the POS terminal 20 proceeds to step S302.

Step S302: The POS terminal 20 starts measuring the code reading time that is set for each store clerk, and proceeds to step S303.
Step S303: The POS terminal 20 determines whether or not a barcode (identification information) has been detected. If the POS terminal 20 does not detect a barcode, the process proceeds to step S308. If the POS terminal 20 detects a barcode, the process proceeds to step S304.

Step S304: The POS terminal 20 acquires the product information corresponding to the barcode, and proceeds to step S305.
Step S305: The POS terminal 20 registers the product according to the acquired product information, displays the product, and proceeds to step S306.

Step S306: The POS terminal 20 judges whether or not the subtotal key has been pressed on the key operation unit 211. If the subtotal key has not been pressed, the process returns to step S301. If the subtotal key has been pressed, the POS terminal 20 proceeds to step S307.
Step S307: The POS terminal 20 performs a settlement process and ends the series of processes. In the settlement process, the POS terminal 20 displays a sub-screen and issues a receipt or the like when settlement operations such as input of the deposit amount and pressing of the current total button are accepted. Note that in the settlement process, change according to the deposit amount and current total in the settlement process may be dispensed.

Step S308: The POS terminal 20 refers to the time being measured and determines whether the code reading time set for each store clerk has elapsed. If the code reading time has not elapsed, the POS terminal 20 returns to step S303. If the code reading time has elapsed, the POS terminal 20 proceeds to step S309 in FIG. 35B.
Step S309: The POS terminal 20 ends the time measurement, and proceeds to step S310.
Step S310: The POS terminal 20 displays the preset keys for the store clerk, and proceeds to step S311.

Step S311: The POS terminal 20 determines whether or not to display selection candidates based on object recognition scanning. Selection candidates based on object recognition scanning are displayed, for example, when the object recognition scanning display button 2606 (see FIG. 30 (D)) is pressed, or when a predetermined time has elapsed on the screen shown in FIG. 30 (D). If the POS terminal 20 displays selection candidates based on object recognition scanning, it proceeds to step S313. If the POS terminal 20 does not display selection candidates based on object recognition scanning, it proceeds to step S312.

Step S312: The POS terminal 20 judges whether or not a product selection has been accepted using the displayed preset keys. If the POS terminal 20 has not accepted a product selection using the displayed preset keys, the POS terminal 20 returns to step S311. If the POS terminal 20 has accepted a product selection using the displayed preset keys, the POS terminal 20 proceeds to step S305.
Step S313: The POS terminal 20 refers to the imaging results (selection candidates based on the feature amounts of the products) detected by the store clerk scanner unit 212, and proceeds to step S314.

Step S314: The POS terminal 20 determines whether the number of selection candidates obtained from the image capture results detected by the store clerk scanner unit 212 (the number of selection candidates obtained by the object recognition scan) is within a predetermined range. The predetermined range can be a preset range, for example, "1 to 3" or "1 to 5." If the number of selection candidates is not within the predetermined range, that is, if the selection candidates have not been narrowed down completely or no selection candidates can be found (the number of selection candidates is 0), the POS terminal 20 proceeds to step S317. If the number of selection candidates is within the predetermined range, the POS terminal 20 proceeds to step S315.
Step S315: The POS terminal 20 displays the selection candidates on the store clerk display unit 210, and proceeds to step S316.

Step S316: The POS terminal 20 determines whether or not the product has been accepted from the selection candidates. If the POS terminal 20 has accepted the product from the selection candidates, the process proceeds to step S305 in FIG. 35A. If the POS terminal 20 has not accepted the product from the selection candidates, the process proceeds to step S317.

Step S317: The POS terminal 20 determines whether or not a command to return to the preset key screen has been accepted. If a command to return to the preset key screen has been accepted, the POS terminal 20 returns to step S310. If a command to return to the preset key screen has not been accepted, the POS terminal 20 proceeds to step S318.

Step S318: The POS terminal 20 determines whether or not to redo the product registration from the beginning. Redoing the product registration from the beginning may mean receiving an instruction to do so, or a predetermined time has elapsed since displaying selection candidates by object recognition scanning. If the POS terminal 20 does not want to redo the product registration from the beginning, it returns to step S316. If the POS terminal wants to redo the product registration from the beginning, it ends the series of processes.

(An example of a customer-side product registration process performed by the POS terminal 20)
36A and 36B are flow charts showing an example of a customer-side product registration process performed by the POS terminal 20. FIG.
Step S331: The POS terminal 20 determines whether the customer-side scanner unit 206 has detected a product (started capturing an image of the product). If the customer-side scanner unit 206 has not detected a product, the POS terminal 20 waits. If the customer-side scanner unit 206 has detected a product, the POS terminal 20 proceeds to step S332.

Step S332: The POS terminal 20 starts measuring the code reading time set for each customer, and proceeds to step S333.
Step S333: The POS terminal 20 determines whether or not a barcode (identification information) has been detected. If the POS terminal 20 does not detect a barcode, the process proceeds to step S338. If the POS terminal 20 detects a barcode, the process proceeds to step S334.

Step S334: The POS terminal 20 acquires the product information corresponding to the barcode, and proceeds to step S335.
Step S335: The POS terminal 20 registers the product according to the obtained product information, displays the product, and proceeds to step S336.

Step S336: The POS terminal 20 judges whether or not the subtotal key has been pressed on the key operation unit 211. If the subtotal key has not been pressed, the process returns to step S331. If the subtotal key has been pressed, the POS terminal 20 proceeds to step S337.
Step S337: The POS terminal 20 performs a settlement process and ends the series of processes. In the settlement process, the POS terminal 20 displays a sub-screen and issues a receipt or the like when settlement operations such as input of the deposit amount and pressing of the current total button are accepted. Note that in the settlement process, change according to the deposit amount and current total in the settlement process may be dispensed.

Step S338: The POS terminal 20 refers to the time being measured and determines whether the code reading time set for each customer has elapsed. If the code reading time has not elapsed, the POS terminal 20 returns to step S333. If the code reading time has elapsed, the POS terminal 20 proceeds to step S339 in FIG. 36B.
Step S339: The POS terminal 20 ends the time measurement, and proceeds to step S340.
Step S340: The POS terminal 20 refers to the image capture result detected by the customer-side scanner unit 206, and proceeds to step S341.

Step S341: The POS terminal 20 determines whether the number of selection candidates obtained from the image capture results detected by the customer-side scanner unit 206 (the number of selection candidates obtained by the object recognition scan) is within a predetermined range. The predetermined range can be a preset range, for example, "1 to 3" or "1 to 5." If the number of selection candidates is not within the predetermined range, that is, if the selection candidates have not been narrowed down completely or no selection candidates can be found (the number of selection candidates is 0), the POS terminal 20 proceeds to step S345. If the number of selection candidates is within the predetermined range, the POS terminal 20 proceeds to step S342.
Step S342: The POS terminal 20 displays selection candidates based on the object recognition scan on the customer side display unit 205, and proceeds to step S343.

Step S343: The POS terminal 20 judges whether or not the product has been accepted from the selection candidates. If the POS terminal 20 has accepted the product from the selection candidates, the process proceeds to step S335 in Fig. 36A. If the POS terminal 20 has not accepted the product from the selection candidates, the process proceeds to step S344.
Step S344: The POS terminal 20 judges whether or not to display the customer preset keys. The customer preset keys may be displayed, for example, when the preset key transition button 3301 (see FIG. 33(F)) is pressed, or when a predetermined time has elapsed since displaying selection candidates by object recognition scanning (see FIG. 33(D)).

Step S345: The POS terminal 20 displays the preset keys for the customer (see FIG. 34), and proceeds to step S346.
Step S346: The POS terminal 20 judges whether or not the product has been accepted. If the POS terminal 20 has not accepted the product, the process proceeds to step S347. The POS terminal 20 judges whether or not the product has been accepted. If the POS terminal 20 has accepted the product, the process proceeds to step S335 in FIG. 36A.

Step S347: The POS terminal 20 determines whether the special button 3400 (see FIG. 34) has been pressed. If the special button 3400 has not been pressed, the POS terminal 20 returns to step S346. If the special button 3400 has been pressed, the POS terminal 20 proceeds to step S348.

Step S348: The POS terminal 20 performs a store clerk calling process, and proceeds to step S349.
Step S349: The POS terminal 20 waits for an operation by a store clerk, and then ends the series of processes. After the wait, if the store clerk registers the product, the process returns to step S331 and the product registration process is performed again.

(An example of the display screen when a customer sets the code reading time)
Next, an example of a display screen when a customer sets the code reading time will be described with reference to Fig. 37. Fig. 37 is an explanatory diagram showing an example of a display screen when a customer sets the code reading time. Note that the screen shown in Fig. 37 shows a screen in the full self mode.

Figure 37 (A) shows the display contents of the registration start screen before the start of the registration process. In Figure 37 (A), a setting change button 3700 is displayed which allows the customer to set the code reading time. When the customer presses the setting change button 3700, the screen transitions to Figure 37 (B).

Figure 37 (B) shows a screen that allows the customer to set the code reading time. In Figure 37 (B), the customer can select to leave the code reading time unchanged, to lengthen it, or to make it longer. This allows the customer to set any code reading time of their choice.

The code reading time setting is not limited to being accepted before the start of product registration, but may be accepted at any timing, such as after the start of product registration. Specifically, even when the product registration process is being performed, the setting change button 3700 may be displayed, and the code reading time may be set (changed) when the setting change button 3700 is pressed. Furthermore, the code reading time is not limited to the time corresponding to the button shown in FIG. 37(B), and may be able to be set arbitrarily by the operator, for example.

(An example of a code reading time table)
Next, an example of a code reading time table will be described with reference to Fig. 38. Fig. 38 is an explanatory diagram showing an example of a code reading time table. In Fig. 38, the code reading time table has fields for operator, operation level, and code reading time. The operator indicates a customer or a store clerk. The operation level indicates a plurality of levels set for each customer and store clerk. The code reading time is the time until the object recognition scan (product registration by photographing) starts, and is set according to the operation level of the operator.

For example, if the operator is a store clerk and the operation level is beginner (new store clerk), a code reading time of 16 seconds is set. Note that in the code reading time table, the operation level and code reading time are not limited to those shown in the figure, and may be classified in more detail. For example, the operation level of a store clerk may be set to intermediate, and a code reading time corresponding to the intermediate level may be set.

(An example of a staff operation level table)
Next, an example of a clerk operation level table will be described with reference to Fig. 39. Fig. 39 is an explanatory diagram showing an example of a clerk operation level table. In Fig. 39, the clerk operation level table has fields for clerk code and operation level. The clerk code is identification information for identifying a clerk. The operation level indicates the degree of familiarity with operating the POS terminal 20. For example, a clerk code of A002 indicates an operation level of beginner (a new clerk).

The POS terminal 20 can identify the operation level of the clerk by referring to the operation level table when the clerk scanner unit 212 reads the clerk code (e.g., A002) attached to the clerk's name tag. The POS terminal 20 can then use the identified operation level to set the code reading time for the clerk by referring to the code reading time table (see FIG. 38).

(An example of a process for setting the code reading time for each operator performed by the POS terminal 20)
Next, an example of the process of setting the code reading time for each operator performed by the POS terminal 20 will be described with reference to Fig. 40. Fig. 40 is a flow chart showing an example of the process of setting the code reading time for each operator performed by the POS terminal. Note that the process shown in the flow chart of Fig. 40 is constantly started (periodically at very short time intervals) in each POS terminal 20.

Step S361: The POS terminal 20 determines whether the current mode is the full self-service mode. If the current mode is not the full self-service mode, the POS terminal 20 proceeds to step S366. If the current mode is the full self-service mode, the POS terminal 20 proceeds to step S362.
Step S362: The POS terminal 20 judges whether or not a request to change the code reading time has been received from the customer, for example, on the display screen shown in Fig. 37B. If the POS terminal 20 has not received a request to change the code reading time from the customer, the POS terminal 20 proceeds to step S364. If the POS terminal 20 has received a request to change the code reading time from the customer, the POS terminal 20 proceeds to step S363.

Step S363: The POS terminal 20 sets the code reading time according to the received content, specifically, sets the code reading time to one of 8 seconds, 16 seconds, or 24 seconds (see FIG. 38), and proceeds to step S364.
Step S364: The POS terminal 20 judges whether or not the customer has finished paying. If the customer has not finished paying, the POS terminal 20 proceeds to step S366.
Step S365: The POS terminal 20 cancels the customer's code reading time, and proceeds to step S366.

Step S366: The POS terminal 20 judges whether or not the clerk code has been detected by having the clerk code attached to the clerk's own name tag read by the clerk scanner unit 212. If the POS terminal 20 does not detect the clerk code, it proceeds to step S371. If the POS terminal 20 detects the clerk code, it proceeds to step S367.
Step S367: The POS terminal 20 judges whether the customer display unit 205 is being operated. The judgment in step S367 may be replaced with a judgment of whether the full self-service mode is in effect. If the customer display unit 205 is being operated (if the full self-service mode is in effect), i.e., if a store clerk is assisting a customer, the POS terminal 20 proceeds to step S369. If the customer display unit 205 is not being operated, i.e., if the store clerk scanner unit 212 is being operated (for example, if a store clerk starts registering a product in normal mode), the POS terminal 20 proceeds to step S368.

Step S368: The POS terminal 20 refers to the operation level table (see FIG. 39) and determines whether the operation level corresponding to the detected store clerk code is beginner. If the operation level is not beginner, the POS terminal 20 proceeds to step S370. If the operation level is beginner, the POS terminal 20 proceeds to step S369.
Step S369: The POS terminal 20 sets the screen transition to be the same as that of the customer (barcode reading -> object recognition scan), and proceeds to step S370.
Step S370: The POS terminal 20 sets the screen transition for the store clerk (reading the barcode→preset key), and proceeds to step S370.

As shown in step S367: YES → step S369, when a store clerk is assisting a customer (when in full self-service mode), the screen transition is set to be the same as that for a customer (scanning a barcode → object recognition scan), that is, the screen transition for the store clerk is not set to be ...

As shown in step S368: YES → step S369, when the clerk's operation level is beginner (when a new clerk registers a product in normal mode), the screen transition is the same as that of a customer (barcode reading → object recognition scan). For example, in the case of a new clerk, the screen transition may be the same as that of a customer (see Figures 31 to 34). In addition, in the case of a new clerk, the same process as the customer's product registration process (see Figures 36A and 36B) may be performed. However, in the case of a new clerk, in the product registration process, barcode detection is performed by the clerk-side scanner unit 212, and the display content is displayed on the screen by the clerk-side display unit 210. In addition, in the case of a new clerk, it is sufficient that the setting is such that at least when the barcode cannot be read, product registration by object recognition scan takes precedence over product registration by preset keys.

Step S371: The POS terminal 20 refers to the code reading time table (see FIG. 38) and the operation level table (see FIG. 39), sets the clerk's code reading time (16 seconds or 30 seconds) corresponding to the clerk code, and proceeds to step S372. Note that as shown in step S367: YES → step S369 → step S371, when the clerk is assisting a customer (if in full self-service mode), the screen transition is set to be the same as for a customer (barcode reading → object recognition scan), but the code reading time is set to a time appropriate for the clerk (longer than for the customer). As a result, the clerk knows the position of the barcode, and can therefore assist in quick and accurate product registration by barcode scanning.

Step S372: The POS terminal 20 determines whether the clerk has logged out. The clerk is logged out when he/she presses the logout button, when he/she has the POS terminal 20 read the clerk code again, or when the clerk is not present near the POS terminal 20. The determination of whether a clerk is present near the POS terminal 20 may be made based on whether an employee ID tag (RFID tag or NFC tag) that stores the clerk's ID information is detected by the reader if the POS terminal 20 is equipped with a short-range wireless communication reader, or based on whether an external camera installed on the ceiling, wall, etc. of the store detects the presence of the clerk in the clerk area.

If the store clerk does not log out, the POS terminal 20 ends the series of processes. If the store clerk has logged out, the POS terminal 20 proceeds to step S373.
Step S373: The POS terminal 20 judges whether the current mode is the full self-service mode. If the current mode is not the full self-service mode, that is, when the store clerk finishes registering the product in the normal mode, the POS terminal 20 proceeds to step S375. If the current mode is the full self-service mode, that is, when the store clerk finishes supporting the customer, the POS terminal 20 proceeds to step S374.
Step S374: The POS terminal 20 resets the code reading time to the code reading time set for the customer, and ends the series of processes.
Step S375: The POS terminal 20 cancels the store clerk's code reading time, and ends the series of processes.

The following additional information is provided below.

(Appendix 1)
a customer registration means (registration on the customer side) for registering products in response to an operation by a customer, a store clerk registration means (registration on the store clerk side) for registering products in response to an operation by a store clerk, a product display selection means (preset keys) for displaying an area indicating products and accepting product selection, an imaging means (customer side scanner unit 206 or store clerk side scanner unit 212) for capturing an image of a target product including a product feature or a symbol code (barcode) attached to the product, a first product identification means (object recognition scan) for identifying a product based on the feature captured by the imaging means, and a second product identification means (barcode scan) for identifying a product based on the symbol code captured by the imaging means, wherein the customer registration means registers the product identified by the first product identification means when a product is not identified by the second product identification means, and the store clerk registration means registers the product accepted by the product display selection means when a product is not identified by the second product identification means.

Specifically, Supplementary Note 1 states that when a customer registers an item, if the item cannot be identified by a barcode scan (if the barcode cannot be read), the item identified by an object recognition scan can be registered. On the other hand, when a store clerk registers an item, if the item cannot be identified by a barcode scan, the store clerk can register an item that is accepted by a preset key.

As a result, when a store clerk registers an item, the store clerk knows the position of the barcode attached to the item, and can quickly and accurately register the item using the barcode. Also, when a store clerk registers an item, the store clerk knows the position (position of the selection button) indicating each item on the preset key, and can quickly register the item using the preset key even if the POS terminal 20 cannot read the barcode.

On the other hand, when a customer registers a product, the customer may not know the position of the barcode on the product, but even in this case, the product can be accurately registered using the barcode. Also, when a customer registers a product, the customer often does not know the position of the selection button on the preset key. Therefore, if the barcode cannot be read by the POS terminal 20, the product can be registered by object recognition scanning, thereby reducing the burden on the customer associated with the registration operation. Therefore, the sales data processing device (POS terminal 20) according to Appendix 1 can effectively support product registration by store clerks and customers.

In this embodiment, the POS terminal 20 is provided with multiple display units, the customer display unit 205 and the store clerk display unit 210, but this is not limited, and the POS terminal 20 may be provided with only one display unit. In this case, however, the POS terminal 20 only needs to display, on the one display unit, an image that has a different display mode or screen transition depending on whether the store clerk is operating the terminal or the customer is operating the terminal when registering a product.

(Appendix 2)
The sales data processing device described in Appendix 1, characterized in that the customer registration means registers a product accepted by the product display selection means when a product is not identified by the first product identification means and the second product identification means.

Specifically, Supplementary Note 2 states that when a customer attempts to register a product, if the product cannot be identified by a barcode scan, an object recognition scan is performed, but if the product is still not identified by the object recognition scan, the product accepted by the preset key can be registered. This allows the customer to register the product by operating the preset key when the customer is unable to register the product by either a barcode scan or an object recognition scan.

(Appendix 3)
The sales data processing device described in Appendix 1 or 2, characterized in that the store clerk registration means registers the product identified by the first product identification means when the product is not identified by the second product identification means and the product is not accepted by the product display selection means.

Specifically, Supplementary Note 3 states that when a store clerk is attempting to register an item, if the item cannot be identified by a barcode scan, and a preset key is displayed but the item cannot be registered using the preset key, the item can be registered using an object recognition scan. This allows the store clerk to register the item using an object recognition scan when the store clerk is unable to register the item using either a barcode scan or a preset key.

(Appendix 4)
The sales data processing device described in Appendix 3, characterized in that, under specified conditions, when a product is not identified by the second product identification means, the store clerk registration means registers the product by prioritizing product identification by the first product identification means over product acceptance by the product display selection means.

The predetermined condition in Appendix 4 is, for example, a condition that the POS terminal 20 is operated by a clerk (new clerk) with a low operation level who is not familiar with using the POS terminal 20. Specifically, Appendix 4 states that in the case of a clerk with a low operation level (new clerk), if the product is not identified by barcode scanning (if the barcode cannot be read) during registration by a clerk with a low operation level (new clerk), priority is given to registering the product by object recognition scanning over registering the product by the preset key. In other words, since new clerks often do not know the position of the selection button on the preset key, the same registration procedure (reading the barcode → object recognition scanning) is used as for customers. This allows the product to be registered quickly by object recognition scanning. Therefore, the sales data processing device in Appendix 4 can support quick registration by new clerks.

(Appendix 5)
The sales data processing device described in any one of appendices 1 to 4, characterized in that the customer registration means registers a product identified by the first product identification means when a first period has elapsed during which a product is not identified by the second product identification means, and the store clerk registration means registers a product accepted by the product display selection means when a second period different from the first period has elapsed during which a product is not identified by the second product identification means.

Specifically, as shown in FIG. 25, in the case of product registration by a customer, if a period during which the product is not identified by a barcode scan has elapsed for a first period (customer code reading time T1), the product can be registered by object recognition scanning; and in the case of product registration by a store clerk, if a period during which the product is not identified by a barcode scan has elapsed for a second period (store clerk code reading time T2: see FIG. 25), the product accepted by a preset key can be registered.

As a result, in the case of store clerks, since they know the position of the barcode for each product, it is possible to accurately register products using the barcodes even if it takes some time (even if the code reading time is long). On the other hand, in the case of customers, since they may not know the position of the barcode for each product and it may take time to register the products, the code reading time is shortened and the system moves to object recognition scanning early. This reduces the burden on customers regarding the registration operation. Therefore, it is possible to support customers and store clerks in registering suitable products.

The time it takes to read the code when a product is registered by a store clerk may be shorter than the time it takes to read the code when a product is registered by a customer. This allows the store clerk to quickly switch to registering the product using a preset key if the store clerk is unable to find the barcode quickly, specifically if the barcode is attached to an item in an obscure location and it takes the store clerk a long time to find the barcode. This allows the store clerk to quickly register the product.

In addition, by making the code reading time when a store clerk registers a product shorter than the code reading time when a customer registers a product, customers can be encouraged to proactively scan the barcode. This can reduce erroneous product registrations by customers, making product registration more accurate.

(Appendix 6)
The sales data processing device according to claim 5, wherein the first period and the second period are periods set for each operator.

Specifically, Supplementary Note 6 states that the code reading time can be set for each customer and for each store clerk. This allows an appropriate code reading time to be set for each operator, providing optimal support for operations related to product registration.

The code reading time set for each store clerk may be updated by accumulating the code reading time. For example, by measuring and accumulating the registration time for barcode scanning each time an item is registered, the average registration time for barcode scanning by each store clerk can be calculated. The code reading time may then be set according to this average value. Also, for customers, the average value for each member may be calculated using membership information, and the code reading time may be set according to this average value. This makes it possible to set the optimal code reading time according to the operator.

(Appendix 7)
The sales data processing device described in Appendix 2, characterized in that the product display selection means displays the area in different display modes when a product is registered by the customer registration means and when a product is registered by the store clerk registration means, and accepts product selection.

Specifically, Supplementary Note 7 states that when registering using preset keys, products may be registered using a customer preset key or a store clerk preset key, and product selection is accepted in different display modes for the customer preset key and the store clerk preset key. For example, compared to the store clerk preset key, the customer preset key is displayed in a display mode and screen transition that allows even customers who are unfamiliar with the POS terminal 20 to easily register products. This makes it possible to prevent erroneous registrations due to operational errors when customers register products, and provides optimal support for customers to register products.

In addition, the preset keys for store clerks are displayed with button layouts and screen transitions that are more functional and easier to use than the preset keys for customers. This allows store clerks to register products quickly and accurately, and provides optimal support for registering products by store clerks.

(Appendix 8)
A sales data processing device as described in any one of appendix 1 to 7, further comprising a mode setting means for setting either a first mode or a second mode different from the first mode, wherein the customer registration means enables the registration of products when the first mode is set by the mode setting means, and the store clerk registration means enables the registration of products when the second mode is set by the mode setting means.

Specifically, Supplementary Note 8 allows customers to register products in full self-service mode, and allows store clerks to register products in normal mode. For this reason, in this embodiment, the transition in the registration method when registering products differs depending on the mode that is set. Specifically, the transition in the registration method is "read barcode → object recognition scan" in full self-service mode, and "read barcode → preset key" in normal mode. This allows product registration operations to be appropriately supported depending on the mode that is set.

In addition, in this embodiment, the display manner of the preset keys differs depending on the mode that is set. Specifically, in full self-service mode, preset keys for customers are displayed, and in normal mode, preset keys for store clerks are displayed. This allows the product registration operation using the preset keys to be appropriately supported depending on the mode that is set.

In addition, in this embodiment, the code reading time differs depending on the mode that is set. For example, in full self-service mode, a short code reading time (customer code reading time T1) is set, and in normal mode, a long code reading time (clerk code reading time T2) is set. This allows the clerk to accurately register products using barcodes in normal mode. On the other hand, in full self-service mode, the code reading time is shortened and the display is switched to object recognition scanning early, reducing the burden on customers associated with product registration due to the time required for registration operations. This can therefore assist customers and clerks in registering suitable products.

In this embodiment, the screen transition when a store clerk registers an item differs depending on the mode that is set. Specifically, when the POS terminal 20 is in full self-service mode, the screen transition is set to be the same as that for a customer (reading a barcode → object recognition scan) even when the store clerk registers an item. This allows the store clerk to instruct the customer on the product registration procedure when supporting the customer in full self-service mode, and also prevents the customer from becoming suspicious that the store clerk may have registered an item without their permission.

(Appendix 9)
A program that causes a computer to function as a sales data processing device, comprising: a customer registration means for registering products in response to a customer's operation; a store clerk registration means for registering products in response to a store clerk's operation; a product display selection means for displaying an area indicating products and accepting product selection; an imaging means for imaging a target product including product features or a symbol code affixed to the product; a first product identification means for identifying a product based on the features imaged by the imaging means; and a second product identification means for identifying a product based on the symbol code imaged by the imaging means, wherein the customer registration means registers the product identified by the first product identification means when a product is not identified by the second product identification means, and the store clerk registration means registers the product accepted by the product display selection means when a product is not identified by the second product identification means.

(Appendix 10)
A sales data processing system including a terminal device and a management device that manages the terminal device, the terminal device includes a product display selection means that displays an area showing products and accepts product selection, an imaging means that images a target product including product features or a symbol code attached to the product, and a terminal communication means that transmits a product selection result showing the product accepted by the product display selection means and an imaging result captured by the imaging means to the management device, the management device includes a management communication means that receives the product selection result and the imaging result from the terminal device, a customer registration means that registers products in response to an operation by a customer, and a store clerk's operation. a customer registration means for registering a product identified by the first product identification means when a product is not identified by the second product identification means; a sales clerk registration means for registering a product indicated by the product selection result when a product is not identified by the second product identification means; and a management communication means for transmitting information relating to the products registered by the customer registration means or the sales clerk registration means to the terminal device.

The program for implementing the POS system 1 and the POS terminal 20 described above may be recorded on a computer-readable recording medium, and the program may be read and executed by the computer system. The term "computer system" as used herein includes hardware such as an OS and peripheral devices. The term "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, and storage devices such as hard disks built into the computer system. The term "computer-readable recording medium" also includes storage devices that hold the program for a certain period of time, such as volatile memory (RAM) inside a computer system that becomes a server or client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. The program may be transmitted from a computer system that stores the program in a storage device to another computer system via a transmission medium or by a transmission wave in the transmission medium. The "transmission medium" that transmits the program refers to a medium that has a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The program may also be for implementing part of the above-mentioned functions. Furthermore, the above-mentioned functions may be realized in combination with a program already recorded in the computer system, i.e., a differential file (differential program).

1 POS system 10 store controller 20 POS terminal 201 CPU
202...ROM
203...RAM
204: Hard disk 205: Customer display unit 206: Customer scanner unit 208: Card payment unit 209: Change machine 210: Clerk display unit 211: Key operation unit 212: Clerk scanner unit 213: Printing unit 214: Audio output unit 215: Communication unit

Claims (3)

A customer registration means for registering products in response to an operation by a customer;
A store clerk registration means for registering products in response to an operation by a store clerk;
a product display selection means for displaying an area showing products and accepting a selection of the product;
An imaging means for imaging a target product including a feature of the product or a symbol code attached to the product;
A first product identification means for identifying a product based on the feature captured by the imaging means;
A second product identification means for identifying a product based on the symbol code captured by the imaging means;
Equipped with
the customer registration means registers the commodity identified by the first commodity identification means when a period during which no commodity is identified by the second commodity identification means has elapsed a first period ;
The store clerk registration means includes:
registering the product identified by the second product identification means or the product selected by the product display selection means;
registering the product accepted by the product display selection means when a period during which no product is identified by the second product identification means has elapsed a second period different from the first period;
A sales data processing device comprising: The first period and the second period are set periods for each operator.
2. The sales data processing device according to claim 1 . A program for causing a computer to function as a sales data processing device,
The computer,
A customer registration means for registering products in response to an operation by a customer;
A store clerk registration means for registering products in response to an operation by a store clerk;
a product display selection means for displaying an area showing products and accepting selection of a product;
An imaging means for imaging a target product including a feature of the product or a symbol code attached to the product;
A first product identification means for identifying a product based on the features captured by the imaging means;
A second product identification means for identifying a product based on the symbol code captured by the imaging means;
Function as a
the customer registration means registers the commodity identified by the first commodity identification means when a period during which no commodity is identified by the second commodity identification means has elapsed a first period ;
The store clerk registration means includes:
registering the product identified by the second product identification means or the product selected by the product display selection means;
registering the product accepted by the product display selection means when a period during which no product is identified by the second product identification means has elapsed a second period different from the first period;
A program characterized by:

Images