JP7498519B2 - Sales data processing system and program - Google Patents

Description

Patent Act Article 30, Paragraph 2 applies 1. Exhibited at DigiWorld Meeting 2018 held from September 11th to September 12th, 2018 2. Exhibited at Food Store Solutions Fair 2018 held from September 20th to September 21st, 2018 3. Exhibited at Teraoka Seiko Shop&Go Private Show held from November 13th to 16th, 2018 4. Exhibited at NRF 2019 Retails Big Show held from January 13th to January 15th, 2019

The present invention relates to a sales data processing system and program that identifies and manages product information.

Traditionally, self-service POS systems that allow customers to register the products they purchase themselves have been widespread, but there are also portable registration devices that allow customers to register products at the same time they place them in a shopping basket, etc. In recent years, sales data processing systems have become known in which customers can download shopping applications onto their own mobile devices, such as smartphones, and use them as registration devices to register their own products in stores.

JP 2018-55700 A

A sales data processing system using a smartphone allows customers to register products using a mobile device such as a smartphone that they are familiar with, thus reducing the time required for registration processing at the cash register.

Therefore, it is preferable for stores to encourage as many customers as possible to use mobile devices, but since customers themselves will have to register their products and, in some cases, process their own payments, it is necessary to take measures to prevent fraud.

The present invention has been developed in consideration of the above circumstances, and aims to prevent customers from engaging in fraudulent registration or payment processing in a sales data processing system that identifies products based on images captured by a mobile terminal or the like.

According to one embodiment, a settlement device is provided which comprises an acquisition means for acquiring information about a product to be purchased which is registered by a registration device operated by a customer , a settlement means for settling a transaction based on the product information, and a display means for displaying the product information at the time of settlement by the settlement means, wherein the display means displays the first warning information together with the product information if first warning information indicating that confirmation by a store clerk is required has been added to the acquired product information, and displays the second warning information together with the product information if second warning information indicating editing by a store clerk is added to the acquired product information .

The sales data processing device of this embodiment can prevent fraudulent registration and payment processing by customers, even when a mobile terminal is used to register products.

1 is a schematic diagram illustrating an example of an overall configuration of a sales data processing system according to an embodiment; FIG. 2 is a diagram illustrating an example of a POS terminal of the sales data processing system of the embodiment. FIG. 2 is a diagram showing data of a sales data processing system according to an embodiment. 1 is an example of a store that employs a sales data processing system according to an embodiment. 1 is an example of an implementation example of a sales data processing system according to an embodiment. 1 is an example of an implementation example of a sales data processing system according to an embodiment. 1 is an example of an implementation example of a sales data processing system according to an embodiment. 1 is an example of an implementation example of a sales data processing system according to an embodiment. 13 is an example of a processing flow in a mobile terminal of the sales data processing system of the embodiment. 13 is an example of a processing flow in a POS terminal of the sales data processing system of an embodiment. FIG. 1 is an example of a functional block diagram of a sales data processing system according to an embodiment. 13 is an example of a screen of a mobile terminal of the sales data processing system of the embodiment. 13 is an example of a screen of a mobile terminal of the sales data processing system of the embodiment. 13 is an example of a screen of a mobile terminal of the sales data processing system of the embodiment. 13 is an example of a screen of a mobile terminal of the sales data processing system of the embodiment. 13 is an example of a screen of a mobile terminal of the sales data processing system of the embodiment. 13 is an example of a screen of a mobile terminal of the sales data processing system of the embodiment. 13 is an example of a screen of a POS terminal of the sales data processing system of an embodiment. 13 is an example of a screen of a POS terminal of the sales data processing system of an embodiment. 13 is an example of a screen of a POS terminal of the sales data processing system of an embodiment. 13 is an example of a screen of a POS terminal of the sales data processing system of an embodiment. 13 is an example of a screen of a POS terminal of the sales data processing system of an embodiment. 13 is an example of a screen of a POS terminal of the sales data processing system of an embodiment. 13 is an example of a screen of a POS terminal of the sales data processing system of an embodiment. FIG. 1 is an example of a block diagram of a sales data processing system according to an embodiment. 13 is an example of a process flow for displaying an image on a mobile terminal of the sales data processing system of the embodiment. 13 is an example of a screen of a mobile terminal of the sales data processing system of the embodiment. FIG. 2 is a diagram illustrating an example of data in a sales data processing system according to an embodiment. 13 is an example of a process flow for displaying an image on a mobile terminal of the sales data processing system of the embodiment. 13 is an example of a screen of a POS terminal of the sales data processing system of an embodiment. 13 is an example of a screen of a POS terminal of the sales data processing system of an embodiment.

A sales data processing system according to an embodiment will be described with reference to the drawings.
-Overall configuration of sales data processing system-
As shown in FIG. 1, a sales data processing system 1 according to one embodiment includes a host device 10 having a storage means for storing a product master 110, a store master 120, a member master 130, a shopping file 140, etc., and a mobile terminal 20 connected to the host device 10 via the Internet or the like.

The higher-level device 10 is, for example, a cloud server, and is linked to a store controller (management device) 60 that constructs the store's product sales system 6 via the Internet, etc., and the product master 110 and other data stored in the higher-level device 10 are updated appropriately, for example at predetermined times, based on each piece of information from the store controller 60.

For example, a smartphone that is personally owned by a customer is used as the mobile terminal 20. The mobile terminal 20 includes a camera (input unit) 260 for capturing images, a display unit (display input unit) 250 such as a touch panel, and the like. The mobile terminal 20 may be a dedicated mobile terminal for rental in a store.
By installing a dedicated application, the mobile terminal (smartphone) 20 has the function of a registration device that executes a registration process for products purchased when shopping in a store.

The mobile terminal 20 can exchange information as appropriate with the product master 110, store master 120, shopping file 140, etc. stored in the higher-level device 10. It can also exchange information as appropriate with a settlement device such as a POS terminal 70.

The store's product sales system 6 includes a store controller 60 and multiple POS terminals (registration and settlement devices) 70, and the POS terminals 70 can register and settle the products purchased by customers.

The store controller 60 is an information processing device that manages the entire product sales system 6 of the store, manages the POS terminal 70, and also manages various information such as a product master and a member master.
The store controller 60 obtains product master data reflecting the latest product information from an external source (e.g., a server at headquarters, a removable storage medium) and stores the product master data.
The product master is a file in which product information such as product name (product name, item name), sales price, discount information, etc. are stored in association with product identification information (e.g., JAN code) assigned to each product.
The product master may also store warning information indicating that the product is a Class 2 drug, alcoholic beverage, or the like, which requires confirmation by a store clerk at the time of sale.

The POS terminal 70 is a device that performs registration and settlement processes for products purchased by customers, and has an input unit 760 such as a barcode reader, preset keys, or a CCD camera for reading information about products purchased by customers, a display unit 750 such as a touch panel for displaying the read product information, and a printing unit 770 for printing receipts, etc.
When shopping identification information is input from the mobile terminal 20, the POS terminal 70 can request registration information and the like from the higher-level device 10 as necessary.

An example of a POS terminal 70 is a POS terminal dedicated to settlement. In this embodiment, a customer registers products at the store using his/her own smartphone (mobile terminal) 20 and performs settlement processing using a POS terminal dedicated to settlement, thereby making it possible to carry out product transactions without the intervention of a store clerk.

The POS terminal 70 is not limited to a POS terminal dedicated to settlement, but may be a POS in which a store clerk registers products purchased by a customer and the customer settles the bill by himself (semi-self-service type). In the case of a semi-self-service type POS, the POS may be a POS in which a registration device that performs registration processing and a settlement device are separate, and registration information registered by the registration device is output to the settlement device and the customer performs settlement processing by the settlement device, or a face-to-face POS having a screen that performs registration processing facing the store clerk and a screen that performs settlement processing facing the customer, and a cash processing unit.
The POS terminal 70 may also be a POS in which the customer performs the registration process and the settlement process for the products he or she purchases, that is, a POS of a type that does not involve the intervention of a store clerk (full-self type).

In addition, the POS terminal 70 may be a switchable POS that can be switched between a semi-self-service POS in which the customer processes the payment themselves, the face-to-face semi-self-service POS, or the full-self-service POS, depending on the level of congestion, the store staff availability, etc.
An example of a switching type POS terminal 70 is shown in Fig. 2. The example of the POS terminal 70 shown in Fig. 2 includes a table 70a.
Furthermore, the register may be a normal POS register in which a store clerk registers products purchased by a customer and processes payments, and there are no limitations as long as it is a device capable of processing payments.

The sales data processing system 1 of this embodiment can be added on to, for example, a product sales system 6 of a store equipped with a store controller 60 and multiple POS terminals 70, to create a sales data processing system in which products can be registered in the store using smartphones owned by customers.

The outline of the overall configuration of the sales data processing system of this embodiment has been explained above, but further explanation will be given by giving some examples.
Generally, when a customer purchases an item at a store, the customer takes the item to be purchased to a cash register, and a store clerk enters the price of each item into the cash register, and the prices of all the items are added up to determine the selling price for that transaction.
When determining sales prices, stores try to attract customers by applying various discounts and other methods to lower sales prices.

FIG. 4 shows a system that is used in a supermarket or the like that operates multiple stores.
Typically, in a system for a supermarket or the like, a headquarters system (server) 50 is installed that oversees and manages all stores, and this headquarters system 50 manages a common product master, a store master, product master for each store, a common special sale plan master, a special sale plan master for each store, and a member master, etc.

In each store, a POS terminal 70 and a store controller 60 that manages the POS terminal 70 are installed, and a POS system is constructed.
The store controller 60 of each store receives the common product master, store master, product master for each store, common special sale plan master, and special sale plan master for each store from the headquarters system 50, and also inputs (registers) the same data at the store. Note that the member master may be received from the headquarters system 50 in the same way as other master data, but the store controller may not hold the member master data, and may instead inquire of the headquarters system each time a member information inquiry is made.

Each store's POS system has its own selling price determination logic.
The selling price determination logic has several logics for calculating the selling price of the product purchased by the shopper, and also includes a function for determining which logic to apply when calculating the selling price of the product.
For example, if a certain product is a single item discounted product, but is also a set match discounted product, the set match discount, which is the lower price, can be applied. Note that which discount logic is selected is determined by the settings.

Here, some examples of selling price determination logic for determining the selling price of a product will be described.
First, the standard selling price determination logic is called the selling price determination logic (basic). In addition, the selling price determination logic unique to each company or store is called the selling price determination logic (company/store).
The selling price determination logic (basic) includes functions such as subtotal (calculation of total amount), subtotal discount/discount, single item discount/discount, bundle/mix match discount, and set match discount.

The selling price determination logic (company/store) has, for example, the above-mentioned subtotal (calculation of the total amount), subtotal discount/discount, single item discount/discount, bundle/mix match discount, and set match discount, as well as discounts/discounts for special services for members and discounts/discounts for each payment type used for payment.The selling price determination logic (company/store) also has its own functions, such as deciding which condition to prioritize when multiple discount/discount conditions compete at the same time.
In addition, the selling price determination logic (company/store) may also have its own logic for subtotals (calculation of the total amount), subtotal discounts/discounts, single item discounts/discounts, bundle/mix-match discounts, and set-match discounts.

The logic contained in the selling price determination logic will be explained with reference to Figure 3 (a). The subtotal (Logic A) is the logic for determining the selling price of the items to be purchased, and calculates the total amount by adding up the prices of the latest product information for each item.
The subtotal discount (Logic B) is a process for discounting a predetermined amount or a predetermined percentage from the subtotal (total amount).
Single item discount (Logic C) is a process for providing a special discount or discount to a specific single item of merchandise.

Bundle/mix-match discounts (Logic D) are a process for offering discounts or discounts on the purchase of a number of products from a specific product group.
Set-match discounts (Logic E) are processes that provide discounts or discounts on the purchase of specific products in combination.

Payment type discount (Logic F) is a process for giving a discount or deduction depending on the payment type used by the member at the time of payment.
Membership type discount (Logic G) is a process for giving a discount or reduction on a specific product or subtotal amount based on membership.
The lowest price calculation logic (Logic H) is a process that determines which discount to apply in order to calculate the lowest price when a product meets multiple discount conditions (multiple logics are applicable).

Then, in each store, depending on the measures required by the store manager (eg, a company), a selling price determination logic for that store is set by combining several of the above logics A through H, and sales prices are determined.
In addition, the logic for determining the selling price determination logic can be set appropriately by the store operator in addition to the logic described above (for example, setting which discount to select when multiple discounts are offered at the same time), and logic other than Logic A to Logic H described above may be provided.

Next, an introduction model of the sales data processing system of this embodiment will be described.
-An example of introducing a new sales data processing system with basic pricing logic-
FIG. 5 shows an outline of a model for introducing a sales data processing system having an independent selling price determination logic (basic) regardless of the existing selling price determination logic when a new store is opened, etc.

In the example shown in FIG. 5, the higher-level device 10 is configured as a store controller of a store, and the mobile terminal 20 is configured to communicate directly with the higher-level device 10, which is the store controller.
The product master 110, store master 120, etc. stored in the higher-level device 10 may be constructed by directly inputting product information and store information using a Web browser or the like.

In this example, the sales decision logic to be adopted in the new store is set in the store controller 10, so that the sales data processing system can be smoothly constructed.
An example of the flow of processing in this example will be briefly explained below. Note that the numbers in parentheses in the explanation indicate the processing in FIG.

In this example, (1) when a member carrying a mobile terminal 20 starts an app on the mobile terminal 20, the app acquires GPS information and the like from the mobile terminal 20 and transmits the acquired location information to the higher-level device 10. Note that the means for acquiring location information is not limited to GPS.

(2) The higher-level device 10 receives location information (or information for identifying a store) from the mobile terminal 20 and transmits to the mobile terminal 20 store information of one or more stores that are closest to the location of the mobile terminal 20 based on the received location information, etc. and the information stored in the store master 120.

In addition, if the location information of the mobile terminal 20 cannot be obtained, the app may display on the display unit 250 of the mobile terminal 20 a message prompting the user to use the mobile terminal 20 to read a QR code (registered trademark) provided at the entrance of a store, for example.
When a customer reads the QR code (registered trademark) using the mobile terminal 20, the app may transmit information for identifying the store in the form of a QR code (registered trademark) to the higher-level device 10.

When transmitting store information to the mobile terminal 20, the higher-level device 10 may also transmit customer information (such as the number of acquired points and member rank).
Furthermore, the higher-level device 10 may also transmit to the mobile terminal 20 sale information about the store information used by the member (such as the store name, information about special sales being held at the store, flyer information containing the store information, etc.).

The mobile terminal 20 that has received the store information displays the received store information on the display unit 250. Alternatively, the mobile terminal 20 displays a plurality of pieces of received store information on the display unit 250 in a selectable manner.
When the member checks and selects a store displayed on the display unit 250 of the mobile terminal 20, the mobile terminal 20 specifies the store where the shopping will be carried out.
By identifying the store, the upper device 10 links the product master of the identified store to the mobile terminal 20 and generates a shopping file (basket data).

(3) When a member reads the symbol code information of a product to be purchased at the identified store using the mobile terminal 20, the mobile terminal 20 transmits the read symbol code information (product identification information) to the higher-level device 10. There are no limitations on the product identification information, as long as it can identify the product and can be obtained as an image, such as a barcode, object recognition based on image features, or character recognition.

(4) The higher-level device 10 that has received the product identification information extracts product information from the product master 110 based on the received product identification information and transmits the product information to the mobile terminal 20. The mobile terminal 20 receives the product information and registers it as a product to be purchased by the member.

(5) The mobile terminal 20 transmits the registered product information to the higher-level device 10 as registered product information. The higher-level device 10 stores the received registered product information in a shopping file (basket data).

(6) The higher-level device 10 calculates the subtotal of the products purchased by the member using the selling price determination logic for the registered product information stored in the shopping file.

(7) The higher-level device 10 transmits the total (estimated) price of the products calculated by the subtotal calculation to the mobile terminal 20.
This allows the member to proceed with shopping while viewing the current total amount (or an approximate total amount in some cases).

(8) When the member has finished shopping, the member displays symbol code information such as a QR code (registered trademark) that stores the shopping identification information on the display unit 250 of the mobile terminal 20. The member then goes to the POS terminal 70 and has the symbol code information displayed on the display unit 250 of the mobile terminal 20 read into the input unit 760 of the POS terminal 70.
As a result, the mobile terminal 20 outputs the shopping identification information to the POS terminal 70 .

(9) The POS terminal 70 that has input the shopping identification information requests the upper device 10 to send shopping information (registered product information, etc.) linked to the shopping identification information.

(10) The upper device 10 receives the shopping identification information from the POS terminal 70, extracts the calculated shopping information linked to the shopping identification information from the basket data, and transmits it to the POS terminal 70.

(11) The POS terminal 70 receives the calculated shopping information and displays a settlement screen based on the received shopping information. The member makes the payment according to the settlement screen, thereby completing one transaction using the mobile terminal 20.
The process flow in this example has been described above.

The subtotal calculation based on the selling price determination logic may be performed by the POS terminal 70. In this case, the higher-level device 10 may transmit (10) uncalculated shopping information related to the shopping identification information to the POS terminal 70 in response to (9) a shopping information request from the POS terminal 70. Furthermore, the subtotal calculation based on the selling price determination logic may be performed by the mobile terminal 20.

- Example of introducing a sales data processing system into an existing store (part 1) -
This example is an example in which accounting can be performed for an existing store as shown in FIG. 4 using selling price determination logic provided by the sales data processing system, without using the selling price determination logic of the store.
In this example, for example, a sales data processing system having the selling price determination logic (basic) can be added to an existing store where the selling price determination logic set is the selling price determination logic (basic).

In the example shown in FIG. 6, a sales data processing system is provided to the existing store shown in FIG. 4 via a cloud service, and the mobile terminal 20 communicates with a higher-level device 10 located in the cloud service.

In this example, the price determination logic (basic) set in the upper device 10 of the sales data processing system is the same as the selling price determination logic (basic) set in the existing store, so when determining the selling price based on the registered product information that has been registered, the mobile terminal 20 only needs to use the selling price determination logic (basic) of the added sales data processing system 1, and does not need to use the selling price determination logic of the existing store.
In addition, the selling price determination logic set in an existing store and the selling price determination logic provided by the sales data processing system are not limited to the selling price determination logic (basic).

In this example, the sales data processing system periodically transmits product information (product master, special sale plan master, etc.) and store information from an existing headquarters system 50 or a store controller 60 installed in the store to a higher-level device 10 provided by a cloud service via the Internet, etc. Note that it is preferable that the product master and special sale plan master sent to the higher-level device 10 only contain information that is valid on the day.

In this example, the higher-level device 10 provided by the cloud service acquires and stores product information (product master, special sale plan master, etc.) and store information, so that a sales data processing system can be constructed simply by adding a POS terminal 70 that performs settlement processing based on the registration information registered by the mobile terminal 20.

The sales data processing system may then periodically transmit the shopping information in the shopping file 140 located in the cloud service to the headquarters system 50 or the store's store controller 60 via the Internet, or to the store controller 60 via an in-store network, thereby storing the results of transactions made by the mobile terminal 20.

The processing flow in this example is the same as that of the newly installed sales data processing system shown in FIG. 5, except that the higher-level device 10 is not a store controller, but is an upper-level device 10 that is placed in a cloud service and obtains information, etc. from the headquarters system 50 or the store controller 60. Therefore, a description of the processing flow will be omitted.

In the example shown in FIG. 6 , the subtotal calculation based on the selling price determination logic may also be performed by an application on the POS terminal 70 or the mobile terminal 20 .
Also, in this example, it is possible to deal with this by modifying the application of the existing POS terminal (payment device) 70 without adding a new POS terminal 70 .

- Example of introducing a sales data processing system into an existing store (part 2) -
The example shown in Figure 7 is an example in which, for example, for an existing store as shown in Figure 4, the selling price is determined by the selling price determination logic of the store's POS terminal 70 while utilizing the selling price determination logic provided by the sales data processing system, and then the transaction is carried out.
In this example, the settlement amount is determined by the selling price determination logic (company/store) set in the existing store. The selling price determination logic (basic) provided by the sales data processing system can provide the mobile terminal with an estimated amount during shopping.

In this example, a sales data processing system is provided to an existing store shown in FIG. 4 by a cloud service, and a mobile terminal 20 communicates with a higher-level device 10 arranged in the cloud service.
Furthermore, by modifying an existing settlement device (POS terminal) 70 so that it can communicate with a higher-level device 10 of the sales data processing system and introducing an application that supports QR code (registered trademark) reading on the mobile terminal 20, a sales data processing system that supports product registration processing by the mobile terminal 20 can be constructed.

In the example shown in Figure 7, the price determination logic (basic) set in the higher-level device 10 does not correspond to the selling price determination logic (company/store) set in the existing store, so the accurate total amount cannot be displayed on the mobile terminal 20.
Therefore, the sales data processing system calculates an estimated price according to the price determination logic (basic) set in the higher-level device 10, and displays the estimated price on the display unit 250 of the mobile terminal 20. The customer can use the estimated price displayed on the display unit 250 as a guide for shopping.

The selling price determination logic set in existing stores and the selling price determination logic provided by the sales data processing system are not limited to the selling price determination logic (company/store) and the selling price determination logic (basic).

The process flow in this example differs from the process flow shown in FIG. 6 in that (6) the selling price determination logic used in the subtotal calculation does not match the selling price determination logic of the store, and (7) the total amount sent when sending the subtotal amount is an estimated amount.

In addition, the POS terminal 70 installed in the existing store is used as the POS terminal 70 that processes (8) shopping information output, (9) shopping information request, (10) calculated basket information transmission, and (11) accounting, but other than that, the process is the same as the newly installed sales data processing system shown in Figure 5 above, so a detailed explanation of the process flow will be omitted.

- Example of introducing a sales data processing system into an existing store (part 3) -
The example shown in Figure 8 is an example in which, for example, for an existing store as shown in Figure 4, a subtotal service is performed in which a headquarters system (server) or a store controller determines the selling price according to the store's selling price determination logic (company/store), while accounting is performed using a newly installed POS terminal 70 instead of an existing POS terminal.

According to this example, even if a POS terminal other than the POS terminal 70 that determines the settlement based on the selling price determination logic (company/store) set in the existing store is delivered, there is no need to modify the program of that POS terminal.

This example is provided by a cloud service to an existing store as shown in FIG. 4. The mobile terminal 20 communicates with the higher-level device 10 located in the cloud service.

In this example, the higher-level device (cloud service) 10 is provided with a basket linking function for transferring shopping information stored in the shopping file to a subtotal service such as a headquarters system (server) or a store controller, as well as a function for updating the information in the shopping file based on the results calculated by the subtotal service, thereby making it possible to build a sales data processing system that supports product registration processing by the mobile terminal 20. Note that, if necessary, a function for performing data conversion when transferring information is provided.

In the present example shown in Figure 8, the subtotal calculation is performed by a subtotal service of the existing store's headquarters system, etc., so there is no need to determine the selling price using the selling price determination logic of the existing POS terminal 70, and transactions can be made using a new POS terminal 70 even if there is no network connection to the existing POS terminal 70, etc.
Data such as sales results can be managed by transmitting it to the headquarters system (server) 50, the store controller 60, and the higher-level device (cloud service) 10, respectively.

In this example, too, the price determination logic (basic) set in the upper device 10 of the sales data processing system does not correspond to the selling price determination logic (company/store) set in the existing store, so the accurate total amount cannot be displayed on the mobile terminal 20. However, the estimated amount calculated using the price determination logic (basic) set in the upper device 10 can be displayed on the display unit 250 of the mobile terminal 20, and can be used as a guide for shopping.

The selling price determination logic set in existing stores and the selling price determination logic provided by the sales data processing system are not limited to the selling price determination logic (company/store) and the selling price determination logic (basic).

An example of the flow of processing in this example will be briefly described below. Note that numbers in parentheses in the description indicate the processing in FIG.
Incidentally, the steps (1) to (5) of the process in the sales data processing system of this embodiment are the same as the steps (1) to (5) shown in FIG. 5, so the description thereof will be omitted.

(6) The higher-level device 10 performs an approximate calculation of the price for the registered product information stored in the shopping file using the selling price determination logic (basic), and (7) transmits the calculated approximate price to the mobile terminal 20.
This allows the member to proceed with shopping while viewing the current estimated price.

(8) When the member finishes shopping, the mobile terminal 20 outputs the shopping information to the POS terminal 70 by displaying symbol code information such as a QR code (registered trademark) that stores the shopping identification information on the display unit 250 and having the input unit 760 of the POS terminal 70 read the symbol code information.

(9) The POS terminal 70 that has input the shopping identification information transmits the shopping identification information to the higher-level device 10 and requests shopping information (registered product information, etc.) linked to the shopping identification information.

(10) The higher-level device 10 receives the shopping identification information from the POS terminal 70 and passes the shopping information linked to the shopping identification information to a subtotal service such as the headquarters system 50.

(11) After receiving the shopping information, the headquarters system 50 calculates the total amount using the subtotal service and transmits the calculated shopping information (subtotal information) to the higher-level device 10.

When the higher-level device 10 receives the calculated shopping information (subtotal information), it updates the shopping information stored in the shopping file with the calculated shopping information and transmits the calculated shopping information to the POS terminal 70.

(13) The POS terminal 70 receives the calculated shopping information and displays a settlement screen based on the received shopping information. The member makes the payment according to the settlement screen, thereby completing one transaction using the mobile terminal 20.
The process flow in this example has been described above.

As described above, the sales data processing system of the present invention is not limited in its form. In other words, the sales data processing system of the present invention can be a system consisting of a host device 10 and a mobile terminal 20 that can be linked to a store's product sales system later, an entire system in which the host device 10 and the mobile terminal 20 are linked to the store's product sales system, a system in which the host device 10 is configured as a store controller 60 of the store's product sales system and the mobile terminal 20 is directly linked to the store controller 60 or a POS terminal 70 in the store, or any other system in which product transactions are conducted based on product information registered by the mobile terminal 20.

The following description also describes an embodiment in which product registration processing and the like is performed by the mobile terminal 20. This is just one example, and the mobile terminal 20 may simply function as an interface for product registration processing, with other processing being performed by a higher-level system such as the higher-level device 10. In other words, which device constituting the sales data processing system performs what processing can be set as appropriate.

-Higher-level device 10-
The upper device 10 of the sales data processing system 1 of this embodiment is provided with storage means for storing a product master 110, a store master 120, a member master 130, a shopping file 140, etc. The product master 110, the store master 120, etc. stored in the upper device 10 are updated based on the information of each master stored in the store controller 60 of the store.

The product master 110 stores product identification information unique to each product, as well as product information, store identification information, and the like that are linked to the product identification information. Using the information stored in the product master, the sales data processing system 1 can identify product information from the product identification information, and identify product information handled at the store from the store identification information.

Furthermore, the product master 110 of the sales data processing system 1 of this embodiment may store product identification information in association with sales conditions (plan number), as shown in FIG. 28(a), for example.
In addition, the product master 110 of the sales data processing system 1 of this embodiment may store a special sale table that links discount type information, identification information of the target product, discount establishment conditions, and discount amount when the establishment conditions are established, for example, as shown in Figure 28 (b).

The sales conditions (plan number) are sales conditions set for each product, and include bulk discount information such as a discount price applied to the purchase of multiple loose products such as vegetables, quantity-limited information where the number of items that can be purchased per customer is set, and information indicating that the product is of a variable weight, with the content volume and price differing for each pack, such as pre-packaged products such as meat, where the price per gram is set. The above bulk discount information is not limited to loose products such as vegetables, but can also be set for products such as canned goods and instant noodles.

Furthermore, the product master 110 may store information (attention information) indicating that each product is a product that requires the intervention of a store clerk when selling it, such as a Class 2 medical product or alcoholic beverage.
The information stored in the product master 110 is not limited to the above-mentioned product information, store identification information, and sales conditions.

As shown in FIG. 3(b), the store master 120 stores store identification information (identification number), the store name, location information such as GPS information of the store, and QR code (registered trademark) information indicating the store, all of which are linked together.
The sales data processing system 1 can specify nearby stores from the information stored in the store master 120, for example, from location information.

As shown in FIG. 3C, the member master 130 stores member identification information and member information such as the member name (name, address, credit card number, etc.) in association with each other.
The sales data processing system 1 can use the information stored in the member master 130 to identify store information and credit card information used by a member, for example, from member identification information.

In addition, the member master 130 may store information linked to the member identification information, such as the frequency of use of the mobile terminal 20 by the member in the past to register products, the number of times a registered product was deleted (canceled) when registering a product, and the number of times an error occurred. The member's level, which is determined by the frequency of use (number of times) and the frequency of error (number of times), may also be stored.

For example, the higher-level device 10 may set member levels ranging from beginner level (L1) to preferred member (L5), and determine the member level for each member based on the frequency (number of times) of product registration using the mobile terminal 20 and the frequency (number of times) of erroneous operation, and store the determined member level in the member master 130.
That is, the higher-level device 10 may store in the member master 130 warning information indicating that the member is someone who frequently makes operational errors.

The shopping file 140 is a file that stores registration information that a member registers using the mobile terminal 20 when shopping. As shown in FIG. 3(d), shopping identification information that identifies a member's purchase is linked to registered product information (barcode information, product name, price, etc.) that was registered during the purchase and stored as shopping information. Note that the shopping identification information may be composed of, for example, a combination of store identification information, date, serial number, etc.

In addition, the purchase file 140 may store operations and actions performed by a member when shopping in association with purchase identification information.
The higher-level device 10 associates the operations performed by the member using the mobile terminal 20 when shopping with the shopping identification information and stores them in the shopping file 140.

For example, the higher-level device 10 may store information about a product that the member was unable to register using the mobile terminal 20 when shopping as pending product information in the shopping file 140, linked to the shopping identification information. In addition, the higher-level device 10 may store information about a cancellation operation of a product registration performed by the member when shopping as cancellation operation information in the shopping file 140, linked to the shopping identification information.

Furthermore, the higher-level device 10 may store in the shopping file 140 the operation history of the mobile terminal 20, such as product registration performed by the member when shopping, failure of the product registration process, cancellation of product registration, etc., linked to the shopping identification information along with the operation time.
Furthermore, the higher-level device 10 may store in the shopping file 140 information such as the route and time traveled within the store when the member goes shopping, in association with the shopping identification information.
That is, the higher-level device 10 may store, as necessary, in the shopping file 140, warning information indicating that a cancel operation has been performed in the shopping transaction.

The mobile terminal 20 transmits the operation history and location data of the mobile terminal 20 to the higher-level device 10 at predetermined time intervals, and the higher-level device 10 stores the received operation history and location data in a shopping file, linking them to shopping identification information.

The shopping information (registered product information) stored in the shopping file 140 is synchronized with the product registration information in the mobile terminal 20, and when a member changes or deletes the quantity of the registered information registered by the mobile terminal 20 while shopping, the higher-level device 10 changes or deletes the shopping information stored in the shopping file 140.

Furthermore, at the time of payment, the member outputs shopping identification information from the mobile terminal 20 to the POS terminal 70, and the POS terminal 70 requests the higher-level device 10 to transmit registration information, etc., that is linked to the shopping identification information and stored in the shopping file 140.
The higher-level device 10 that has been requested to provide the registration information outputs the product information linked to the shopping identification information to the POS terminal 70 .

When the settlement process of one transaction is completed, the higher-level device 10 stores the shopping information of that transaction as settled shopping information in the shopping file 140. The member can use the mobile terminal 20 to access the shopping file 140 of the higher-level device 10 and refer to the past shopping history.
The shopping file 140 is synchronized with the shopping file stored in the store controller 60 of the store, and may also store information about shopping made by the member without using the mobile terminal 20.
By accessing the shopping file 140 in the higher-level device 10, the member can refer to the entire history of past purchases at the store.

The shopping file 140 may have a separate memory area for storing currently registered shopping information and a separate memory area for storing past history, and when a member's currently registered shopping information is finalized, it may be added to the memory area for storing past history.

The higher-level device 10 also supplies the mobile terminal 20 with an application program (shopping app) that runs on the mobile terminal 20. The shopping app may be provided from a site on the Internet that provides applications for the mobile terminal 20.

--Mobile terminal 20--
The mobile terminal 20 of the sales data processing system 1 of this embodiment will be described with reference to the flow chart shown in FIG. 10 and the screen display examples shown in FIGS.
The mobile terminal 20 will be described by taking as an example a smartphone personally owned by a customer, on which a dedicated application provided from the higher-level device 10 or the like is installed.

(Advance preparation)
In order to use a customer's smartphone as a mobile terminal 20 capable of performing store registration processing, the customer registers as a person who can perform registration processing using a smartphone (hereinafter referred to as a "member").

When registering as a new member, the customer preferably registers information that can be used to verify the customer's identity, such as name, address, telephone number, and email address, as well as credit card information.
A customer can carry out the registration procedure either online or offline. For example, the customer can enter the necessary information on a registration form or tablet at the store, and then download a dedicated app by sending a download URL to the registered email address, or can download and install a dedicated app from the higher-level device 10, and then launch a member registration screen to carry out the registration procedure. In addition, the customer can carry out the registration procedure from a site on the Internet that provides applications for the mobile terminal 20.

Furthermore, if the customer is already a card member of the store, the customer may register as a member by additionally registering only the credit card information, for example, in the member registration process.
The information to be registered is not limited to the above information. For example, if the store is a chain store, the customer may register information about the store that the customer regularly uses. By registering the store, the customer can obtain information unique to the store through distribution.
The higher-level device 10 stores information on the registered members in the member master 130 .

The sales data processing system 1 of this embodiment can use the operation history information stored in the member master 130 in a store other than the store in question. In other words, the sales data processing system 1 can use the information on the member's operation level determined by the operation history in a store other than the store in question as a condition for displaying a confirmation screen by a store clerk at the settlement device, etc.

Furthermore, when the mechanism of the higher-level device 10 is used by multiple companies, it is preferable to utilize it beyond the corporate group and among multiple companies, provided that its use is limited to security purposes such as information on the member's operation level determined by the operation history.
The security level can be set by each corporate group or each store, and it may be possible to freely set rank settings for membership level and operation level, conditions for the occurrence of confirmation events by store clerks, etc. Furthermore, the conditions may be stored on the settlement device side, received when the shopping file (basket data) is acquired, and the occurrence of confirmation events by store clerks may be controlled on the settlement device side.

(Store-specific processing)
When a member starts up a dedicated application on the mobile terminal 20, the mobile terminal 20 executes a process for identifying the store in order to function as a registration device in the store (S201).

For example, when a member launches a dedicated app on the mobile terminal 20, the mobile terminal 20 may identify a store based on location information obtained from a GPS or the like of the mobile terminal 20. Specifically, the mobile terminal 20 transmits the location information to the higher-level device 10, and the higher-level device 10 that receives the location information transmits information on the store with the closest location information to the mobile terminal 20 based on the store master 120, thereby identifying the store where shopping will be performed.
If there are multiple applicable stores, the mobile terminal 20 may display a selection screen on the display unit 250 so that the member can select from among the multiple stores.

In addition, a QR code (registered trademark) containing QR code (registered trademark) information stored in the store master 120 may be attached to the entrance of the store, and the member may read the QR code (registered trademark) with the input unit 260 of the mobile terminal 20, allowing the mobile terminal 20 to identify the store.

When the mobile terminal 20 is unable to acquire location information, the mobile terminal 20 may display a message such as "Please read the store's QR code (registered trademark)" on the display screen of the mobile terminal 20. When a member enters a store, the mobile terminal 20 may identify the store using short-range wireless communication such as Wi-Fi, Bluetooth (registered trademark), or a beacon within the store.

Furthermore, the mobile terminal 20 may display a selection screen for selecting a store on the display unit 250, and the member may select a store from the selection screen, thereby identifying the store selected by the member as the store where the shopping will be carried out.
The means by which the mobile terminal 20 identifies a store is not limited in any way.

By identifying the store, the higher-level device 10 grants the mobile terminal 20 permission to access the product master of that store, and generates basket data (shopping file) linked to the mobile terminal 20.

When a member enters a store, the mobile terminal 20 may notify the member of information such as "sale information," "related/alternative products," "new products," and "out-of-stock information" at that store. If the identified store is closed, that fact may be displayed on the display unit 250. If the store is closing time, the transition to the registration screen may be prohibited. Registration via the app may be prohibited at a specified time before closing time, and customers who are currently registering may be notified of the closing time. However, customers who are currently registering may continue shopping, and registration may not be prohibited even when closing time arrives. Continuing shopping is permitted as long as the member is within a specified range of the store's location. Notifications may be made gradually encouraging payment.

Having identified the store, the mobile terminal 20 displays a start screen 800 for starting shopping on the display unit 250, as shown in FIG. 12(a).
The start screen 800 displays member point information 800a, a key 800b linked to store information of the specified store, a key 800c linked to notifications of special sales information and the like, a key 800d linked to coupon information, and the like, as well as a "Start" key 800e that declares the start of product registration at the store.

When the member operates the "Start" key 800e on the start screen 800, the mobile terminal 20 displays a registration screen 810 as shown in FIG. 12(b).
It should be noted that the mobile terminal 20 may directly display the registration screen 810 without displaying the start screen 800 by identifying the store.

The registration screen 810 is divided into two areas, an upper area and an lower area, and the upper area of the registration screen 810 is set as a first display area 811 that displays image data captured by the camera (input unit) 260 of the mobile terminal 20.
The mobile terminal 20 displays a message 811a in the first display area 811 of the registration screen 810 prompting the user to take an action such as "Please read the product barcode," and also visibly displays a mark 811b indicating the reading range for recognizing the barcode (product identification information).

(Reading Operation Detection Process and Product Information Acquisition Process)
The mobile terminal 20, which has identified the store and completed preparation for product registration, detects the member's operation of reading the barcode attached to the product (S202), and when the member performs the reading operation (yes in S202), obtains product identification information from the read barcode (code information) (S203).

For example, when a member takes an item to be purchased from a display shelf and places it in a shopping cart, the member captures an image of the item using the input unit 260 of the mobile terminal 20. Specifically, as shown in FIG. 13(a), the member captures an image of the barcode attached to the item within the mark 811b displayed in the first display area 811 of the registration screen 810.

If the image contained within the mark 811b displayed in the first display area 811 is a barcode, the mobile terminal 20 automatically recognizes it and obtains the product identification information (code information).

If the mobile terminal 20 is equipped with a distance sensor or the like, it can detect that the input unit 260 of the mobile terminal 20 has been brought close to an item for a certain period of time, thereby detecting the member's operation of reading a barcode or the like.
When the mobile terminal 20 repeatedly automatically recognizes barcodes, even if it is not equipped with a distance sensor or the like, it can detect a member's barcode reading operation by, for example, detecting that the same image is being captured for a predetermined period of time.

If the mobile terminal 20 detects that the same image has been captured for a predetermined period of time but is unable to acquire product identification information (code information), it may execute a timeout process and issue a notification such as "Product registration was unsuccessful. Would you like to purchase? (Yes/No)" and prompt the user to place the product on hold. The mobile terminal 20 may also confirm the purchase.

The mobile terminal 20 may read barcodes captured by a shutter operation or the like while the app is running, rather than automatically recognizing barcodes, etc. In this case, the mobile terminal 20 can detect the member's barcode acquisition operation by detecting that a shutter operation has been performed on the app screen.

The mobile terminal 20 may detect the member's operation to read a barcode or the like by monitoring the state of the mobile terminal, such as the inclination, using a gyro sensor or the like. Specifically, the mobile terminal 20 may make a judgment based on a combination of the inclination and movement state of the mobile terminal 20.

When the mobile terminal 20 is unable to acquire a barcode (product identification information) by imaging, the mobile terminal 20 may store an image of the product for which the product identification information could not be acquired as a reserved product.
The member can separate the products stored as reserved products in the mobile terminal 20 from the products that have been registered, and proceed with the registration process for the next product. By leaving an image of the reserved product on the mobile terminal 20, it becomes easier to identify the product during the later payment process, and it becomes easier for the store clerk to correct the product registration information.

In addition, there may be cases where the timeout process is not performed by the mobile terminal 20, in which case the customer will have to keep trying to register the product, which is inconvenient. The mobile terminal 20 may be configured to register the product as a reserved product instead of a normal product registration, based on the member's operation.
Specifically, the mobile terminal 20 may display a “register pending item” key on the registration screen 810, for example, and when the member operates the “register pending item” key, the mobile terminal 20 may switch to an image capture mode in which the shutter is manually released.

The member may take an image of the front packaging of a product that could not be registered in the imaging mode, the product barcode, the price tag on the shelf, etc., at his/her own timing, and the mobile terminal 20 may store the imaged product as a reserved product. In other words, the member may be able to switch to manual imaging mode at his/her own will.

The mobile terminal 20 may detect the reading operation of a barcode or the like using any method, and the method is not particularly limited.

If the mobile terminal 20 is unable to acquire the product identification information (code information) in step S203, it detects that acquisition of the code information has failed (no in S204).

For example, if the barcode attached to the product is damaged or distorted due to the way the product is packaged, the mobile terminal 20 may not be able to read some or all of the code information recorded in the barcode (unreadable product).
Furthermore, when a member images a part of a product that does not have a barcode, the mobile terminal 20 cannot obtain the code information.
In such a case, the mobile terminal 20 cannot obtain the product identification information (code information) and cannot register the product.
In step S204, the mobile terminal 20 detects a case where the barcode cannot be read and therefore the product identification information (code information) cannot be acquired, and the product cannot be registered.

If the mobile terminal 20 detects in step S204 that product identification information (code information) has been acquired, it determines whether the product identification information exists in the product master 110 (S205).

If the acquired product identification information does not exist in the product master 110 in step S205, the mobile terminal 20 determines that registration of the product information has failed and proceeds to step S207 (no in S205).

For example, the mobile terminal 20 transmits the acquired product identification information to the higher-level device 10, but if the acquired product identification information is for a product that is not stored in the product master (a non-file product) or if there is a problem with the connection to the higher-level device 10, the mobile terminal 20 is unable to acquire the product information from the higher-level device 10 and is therefore unable to register the product.
In step S205, the mobile terminal 20 detects a case in which the product in the acquired product identification information cannot be registered because the product is a non-file product or the like.

If the mobile terminal 20 downloads the product master after identifying the store, the mobile terminal 20 can determine whether or not it is possible to obtain product information using only the mobile terminal 20, and can further obtain the product information and register the registered product information of the product. The mobile terminal 20 may also make a determination based on the product master stored in the store controller 60 or the POS terminal 70.

If the mobile terminal 20 is constantly automatically repeating barcode recognition and is not equipped with a function for detecting a reading operation such as a distance sensor, step S202 for detecting the member's reading operation and decision step S204, i.e., the detection process for when a product cannot be registered because the code information cannot be read, may be omitted.

(Product registration processing, registered product cancellation processing)
In step S205, if the acquired product identification information exists in the product master and product information linked to the product identification information can be acquired, the mobile terminal 20 registers the product information as registered product information of the product purchased by the customer (step S206).

If the product identification information acquired by the mobile terminal 20 exists in the product master, the higher-level device 10 stores product information based on the acquired registered product information in the shopping file 140.

(Display Processing)
When the mobile terminal 20 registers the product based on the acquired product information, as shown in FIG. 13(a), a second display area 812 displaying the registered product information and a third display area 813 displaying the current registration status are displayed in the lower area of the registration screen 810 (S209).

The mobile device 20 displays product information 812a, such as the product name, the purchase quantity (operator) 812b, and the product price 812c in the second display area 812, and displays the current registered number of items 813a, the estimated total 813b, and a "Checkout" key 813c for proceeding to checkout based on the registered information in the third display area 813.

Furthermore, the mobile terminal 20 displays the third display area 813 above the second display area 812, i.e., between the first display area 811 and the second display area 812. This allows the member to smoothly see the change in the estimated total amount when registering the product.
As shown in FIG. 12B, the mobile terminal 20 may display a third display area 813 showing the number of registered items as 0 and the estimated total amount as 0 yen, prior to product registration.

The mobile terminal 20 may arrange the third display area 813 independently of the first display area 811 and the second display area 812 , or may arrange it within the range of the second display area 812 .
It is preferable that the mobile terminal 20 displays the current accurate total amount in the estimated total 813b displayed in the third display area 813. However, for example, when a sales data processing system is introduced into an existing store with a complex price determination logic, an accurate subtotal calculation based on the store's price determination logic cannot be performed unless the registered product information is output to an existing POS terminal or the like (payment settlement device) 70, so the mobile terminal 20 may display the estimated total amount calculated by adding up the list prices of each product, etc., in the third display area 813 of the mobile terminal 20.

By displaying the third display area 813 on the registration screen 810 of the mobile terminal 20, the member can grasp the current number of items to be purchased and the estimated total while registering the item.
The mobile terminal 20 according to this embodiment displays the third display area 813 above the second display area 812, i.e., between the first display area 811 and the second display area 812. This allows the member to smoothly see the change in the estimated total amount when registering the product.

The member can change the purchase quantity 812b of the product displayed in the second display area 812, or delete the registered product information of the product.
For example, when a member operates (touches) the purchase quantity 812b displayed in the second display area 812, the mobile terminal 20 displays a quantity change screen (pop-up) 820 that allows the member to change the quantity of the product, as shown in FIG. 14(a).

The quantity change screen 820 displays the current number of items purchased and the price, and also has a "+" key 820a and a "-" key 820b for changing the number of items, and a "Cancel item" key 820c for deleting registered item registration information.

When the purchase quantity 812b of a product that does not support changes to the quantity, such as a clearance product or other limited quantity product or a product with an indefinite weight, is touched, the mobile terminal 20 may display a pop-up 821 that does not have a "+" key 820a or a "-" key 820b for changing the quantity of the product, as shown in FIG. 14(b), and only accept the deletion of the product.

When a member operates the "+" key 820a or the "-" key 820b on the quantity change screen 820 to change the quantity, etc. of the registered product information displayed on the registration screen 810, the mobile terminal 20 changes the purchase quantity 812b of the product displayed on the registration screen 810.
Then, the mobile terminal 20 outputs the changed registered product information to the higher-level device 10, and the higher-level device 10 updates the registered information stored in the shopping file 140 based on the input registered product information.

When a member operates the "Cancel Product" key 820c to delete the registered product information displayed on the registration screen 810, the mobile terminal 20 cancels the registration of the registered product information displayed on the registration screen 810.
Then, the mobile terminal 20 outputs the registration product information for which registration has been cancelled (deleted) to the higher-level device 10, and the higher-level device 10 updates the registration information stored in the shopping file 140 based on the input information.

When a member cancels registered product information, the mobile terminal 20 may notify the member that the product should be returned to the display shelf or the like.
At this time, if the mobile terminal 20 can identify the member's position within the store, it may detect whether the product whose registered product information has been cancelled is more than a certain distance away from the shelf to which it should be returned, and display a screen allowing the member to select whether to return the product to the shelf or to move it to the holding basket.

When a member cancels the registration of registered product information, the mobile terminal 20 may link the product information of the deleted product with information indicating that a cancellation operation has been performed and store it as canceled product information. In particular, when a process is performed to move a product whose registered product information has been canceled to a holding cart, it is preferable for the mobile terminal 20 to store it as canceled product information.

The mobile terminal 20 may delete the registered product information whose registration has been cancelled without displaying it on the registration screen 810, but may also display it on the registration screen 810 so that it is clear that it has been cancelled, for example by drawing a line through it or by indicating that it is a cancelled product.

In addition, the mobile terminal 20 may output information indicating that a cancellation operation has been performed by the member to the higher-level device 10, and the higher-level device 10 may store this information in the shopping file 140 as cancellation operation information.
Furthermore, after the settlement process for the purchase is completed, the higher-level device 10 may store in the member master 130 information such as the number of times the member performed a cancellation operation on registered product information during the purchase.

(Notification process)
If it is determined in step S204 that the product cannot be registered because it is an unreadable product, or if it is determined in step S205 that the product cannot be registered because it is a non-file product or the like, the mobile terminal 20 notifies the member that the product cannot be registered (S207).

For example, as shown in Fig. 13(b) , the mobile terminal 20 displays a notification (pop-up) 830 to the effect that the product that cannot be registered will be placed on hold on the registration screen 810. At this time, a notification that the two products will be treated differently may be displayed, such as a display 830a that prompts the user to place the product that has been successfully registered and the product that cannot be registered in separate baskets (or specific areas within the basket).
The notification that the product cannot be registered is not limited to a pop-up message or the like.

If the product that cannot be registered is an unreadable product and the barcode of the product is displayed on the display shelf of the product, the mobile terminal 20 may notify the user to read the barcode attached to the display shelf.

If the product registered by the member is not a product that cannot be registered but requires the intervention of a store clerk, the mobile terminal 20 will display a pop-up or the like on the registration screen 810 to inform the user that the registered product requires the intervention of a store clerk and that a store clerk will be called at the time of payment.

Examples of products that require the intervention of a store clerk include "medicine,""products with security tags," and "products that require age verification" such as alcohol.
In addition, for some pharmaceuticals, expensive products, large products, etc., blank packages and price cards with bar codes are placed on the display shelves, and members can take the blank packages or price cards to the payment device and receive the actual product at the time of payment as "exchange products." For the sake of explanation, the above-mentioned products that require the intervention of a store clerk are sometimes referred to as "reserved products."

If the product registered by the member is one that requires the intervention of a store clerk, the mobile terminal 20 will display information appropriate for each special product (warning information) such as that the registered product is a special product such as a "product subject to a security tag" and that "a staff member will remove the security tag when you pay the bill," and will also display an "OK" key to acknowledge this. When the member presses the "OK" key, the mobile terminal 20 will generate product information for the product that the member has acknowledged.

Furthermore, if the product registered by the member is an "exchange product," the mobile terminal 20 may notify the store clerk that an exchange product has been registered, such as, "Transaction number 1111. Mr./Ms. XX has registered a Class 2 OTC drug, a clothesline. Please prepare the product and hand it over to the service counter clerk."

This allows the store staff to pick the actual product and have it ready at the checkout device before the member goes to the checkout device, allowing the product to be delivered quickly when the member arrives at the checkout device.

(Reserved Product Information Generation Process)
The mobile terminal 20 generates reserved product information for the product that cannot be registered (S208). The reserved product information records, for example, member identification information, shopping identification information, and read time, and preferably also stores information on whether the reserved product is a non-file product or an unreadable product, and may further include image data obtained when the code information is imaged.

The mobile terminal 20 may generate pending product information for products that require the intervention of a store clerk, including information that the product requires the intervention of a store clerk. The mobile terminal 20 stores the generated pending product information. (Addition of warning information)

(Display Processing)
The mobile terminal 20 that has generated the pending product information displays pending product information 812e indicating that there is a pending product in accordance with the registered product information 812d in the second display area 812 of the registration screen 810, as shown in FIG. 15(a) (S209).

It is preferable that the mobile terminal 20 displays the reserved product information 812e displayed in the second display area 812 in a display format different from that of the registered product information 812d.
In the example shown in FIG. 15(a), the mobile terminal 20 displays two pieces of registered product information 812d together with reserved product information 812e, and the background color of the reserved product information 812e is made different from the background of the other registered product information 812d.

In addition, the mobile terminal 20 may display the number of pending items in a display field 812g in the second display area 812, and may display a message 812f in the pending item information 812e encouraging the member to handle the pending items differently than for normally registered items, such as "please add to a special basket," thereby informing the member that pending items exist and that the pending items will be handled differently.
When displaying the information, it is preferable that the mobile terminal 20 also displays whether the reserved product is a "non-file product" or an "unreadable product." By displaying the information in this manner, the store clerk can provide a quicker response to the customer.

Furthermore, the mobile terminal 20 may display in the second display area 812, for products that require the intervention of a store clerk, indications such as "Medicine", "Product with security tag", "Product requiring age verification" such as alcohol, "Exchange product" (display of warning information), and may also display a message such as "This product requires confirmation by a store clerk."

It is also preferable that the reserved product information 812e displayed in the second display area 812 can have its quantity changed or deleted in the same manner as with normal registered product information.
For example, if a member repeatedly performs a reading operation on the barcode of a product that cannot be registered, multiple pieces of pending product information 812e may be generated. In such a case, the mobile terminal 20 may delete the pending product information 812e in response to the member's operation.
The mobile terminal 20 may output the pending product information and information regarding a cancel operation of the pending product information to the higher-level device 10 in the same manner as the registered product information.
The higher-level device 10 may then store the input reserved product information, etc. in the shopping file 140 .

(Export of registration information)
After displaying the registration information, the mobile terminal 20 proceeds to step S210 and detects whether or not the member has instructed to proceed to the checkout (S210).
When the mobile terminal 20 detects that the member has instructed it to proceed to checkout (Yes in S210), it outputs an instruction to proceed to checkout or registration information together with the instruction to proceed to checkout (S211), and completes the process.

The registration information output by the mobile terminal 20 may be shopping identification information.
The registration information may also include registered product information for which product registration has been successful, pending product information for which product registration has not been successful, and may further include cancelled product information for which product registration has been cancelled.

Specifically, the mobile terminal 20 detects that the member has operated the "Checkout" key 813c displayed on the registration screen 810 of the display unit 250.
Then, when it is detected that the member has operated the "Checkout" key 813c, the mobile terminal 20, as shown in Fig. 15(b), displays (outputs), for example, a QR code (registered trademark) 840a generated based on the shopping identification information on the output screen 840. Note that the mobile terminal 20 may also display (output) a QR code (registered trademark) 840a generated based on the registration information stored in the shopping file on the output screen 840.

The member can have the input unit 760 of the POS terminal 70 read the QR code (registered trademark) 840a displayed on the display unit 250 of the mobile device 20, and the POS terminal 70 can obtain registration information linked to the product identification information from the higher-level device 10.

Symbol code information such as a QR code (registered trademark) may store registration information including registered product information and owned product information, but may also store shopping identification information linked to the registration information including the registered product information and owned product information. For example, the shopping identification information may be path information such as a URL stored in a shopping file, or if the search destination for shopping information is common, it may be a combination of any of information such as a store identifier, member identifier, date and time, or it may be identifiable by a sequence number, etc. There is no problem as long as the search destination is known on the settlement device side.

In addition, instead of outputting the symbol code information in which the information is stored, the mobile terminal 20 may select a POS terminal 70, and the selected POS terminal 70 may obtain the registration information stored in a location other than the mobile terminal 20.

For example, a member may have the mobile terminal 20 read a QR code (registered trademark) that is generated on the screen of the POS terminal 70 and identifies a specific POS terminal 70, and the mobile terminal 20 may then transmit a transaction instruction together with the shopping identification information to the specific POS terminal 70. The POS terminal 70 that receives the transaction instruction may then obtain registration information linked to the shopping identification information.
It should be noted that registration information may be obtained by setting a FeliCa (registered trademark) or NFC identifier of the mobile terminal in advance using an IC reader.

On the other hand, if the customer does not give an instruction to proceed to the checkout (No in S210) and performs an operation such as reading the barcode of another product, the product registration in steps S202 to S209 is repeated until an instruction to proceed to the checkout is given.
The process flow in the mobile terminal 20 has been described above.

- POS terminal 70 -
Next, the POS terminal (payment settlement device) 70 of the sales data processing system 1 of this embodiment will be described with reference to the flow chart shown in FIG. 11 and the display examples shown in FIGS.

(Input Processing)
The POS terminal (payment settlement device) 70 inputs the registration information (shopping identification information, etc.) output by the mobile terminal 20, etc. (S701).

For example, when a member has the input unit 760 of the POS terminal 70 read the QR code (registered trademark) 840a displayed (output) on the display unit 250 of the mobile device 20, the POS terminal 70 inputs the registration information (shopping identification information, etc.) stored in the QR code (registered trademark) 840a.

(Notification process)
The POS terminal 70, which has input the registration information (shopping identification information), requests the shopping information linked to the shopping identification information from the higher-level device 10. After inputting the shopping information (registration information) from the higher-level device 10, the POS terminal 70 determines whether the input shopping information includes reserved product information, canceled product information, or the like (S702).

If the POS terminal 70 determines in step S702 that the registration information includes pending product information, it issues a notification to call a store clerk (S703).

The POS terminal 70 issues a visual notification from the POS terminal, such as by flashing a light (Patlite (registered trademark)) to call a store clerk. Note that the method of notifying the store clerk is not limited to Patlite (registered trademark), and may be any method such as an in-store announcement, notification to a monitoring device that monitors the status of the POS register where the store clerk is stationed and all POS terminals, notification to a management device located in the back yard, or notification to a portable device held by the store clerk.
Then, as shown in FIG. 18, the POS terminal 70 displays on the display unit 750 a pop-up 910 indicating that there is a reserved item among the registered items and that a store clerk is being called.

Furthermore, if the POS terminal 70 determines that the registered information includes canceled product information, it may also issue a notification to call a store clerk (S703).
In addition, the POS terminal 70 may also issue a notification to call a store clerk when paying for a purchase that includes registered merchandise that requires the intervention of a store clerk, such as merchandise with an anti-theft tag attached.
That is, in step S702 above, the POS terminal 70 may determine whether the registration information includes pending product information, canceled product information, etc., and if pending product information, canceled product information, etc. is included, issue an alert to call a store clerk.

(Settlement process)
On the other hand, if the POS terminal 70 determines in step S702 that the registration information does not include reserved product information or canceled product information, etc., it proceeds to the settlement process.
Specifically, the POS terminal 70 displays a registration confirmation screen 900 on the display unit 750, as shown in FIG. 19 (S709).

The registration confirmation screen 900 shown in FIG. 19 displays a list of registered product information 900a, and an arrow 900i is displayed at a predetermined position on the registration confirmation screen 900, allowing the member to scroll through the list of registered product information 900a by operating the arrow 900i.
At the top of the registration confirmation screen 900, the total amount is displayed, along with the number of items 900k purchased in the shopping trip and the total amount 900m, and further a "Checkout" key 900b is provided.

In addition, a price range registration quantity display 900d is located at the bottom of the registration confirmation screen 900, which shows the registered quantity for each price range of products. In the example shown in FIG. 19, the numbers "3," "4," "9," and "12," which indicate the quantity of products in each price range, are displayed for the price ranges "1,000 yen or more," "500 yen to 999 yen," "300 yen to 499 yen," and "300 yen or less."

When a store clerk operates each field of the price range registration number display 900d, the POS terminal 70 may highlight the corresponding product in the list of registered product information 900a. For example, when a store clerk presses the "1,000 yen or more" key, the POS terminal 70 highlights registered product information with a price of 1,000 yen or more.

By displaying the registered quantities by price range on the registration confirmation screen 900, the store clerk can get an overview of the products purchased by the member.
The POS terminal 70 may notify a light (Patlite (registered trademark)) or other device (monitoring device), a service manager, etc., when a high-priced item is being purchased, and a store clerk may assist with packaging the high-priced item, etc.
In addition, when displaying product information on the registration confirmation screen 900, it is preferable that the POS terminal 70 does not display the product information in the order in which it was registered by the mobile terminal 20, but rather displays the information in order from the most expensive product to the least, i.e., based on the level of interest.

When the member operates the "Checkout" key 900b located on the registration confirmation screen 900, the POS terminal 70 executes the settlement process using the registration information displayed on the registration confirmation screen 900 (S709), and completes the transaction.
In this manner, if there are no reserved items among the items to be purchased, the member can complete the payment without the need for the intervention of a store clerk.

(Display process of registered product information and reserved product information)
Meanwhile, when the member operates the "OK" key 910a of the pop-up 910, the POS terminal 70 that performed the notification process in step S703 displays a registration confirmation screen 920 showing a list of the entered registration information (registered product information and pending product information) on the display unit 750 (S704).

The registration confirmation screen 920 shown in FIG. 20 displays a list of registered product information 920a, and an arrow 920i is displayed at a predetermined position on the registration confirmation screen 920, allowing the member to scroll through the list of registered product information 920a by operating the arrow 920i.
At the top of the registration confirmation screen 920, the word "Estimate" is displayed, along with the number of registered items to be purchased 920k and the estimated total amount 920m.

The registration confirmation screen 920 displays a list of registered product information 920a, along with information on two pending products 920b and 920c that could not be registered, and information on one cancelled product 920d whose registration was cancelled. Furthermore, the registration confirmation screen 920 also displays (displays warning information) products that require the intervention of a store clerk, such as "pharmaceuticals" 920e, "products subject to security tags" 920f, and "products requiring age verification" 920g, such as alcohol, so that the user can see them. The POS terminal 70 may also display discounted products, etc., as products that require confirmation by a store clerk, along with a display of "discount", etc.

The POS terminal 70 displays the registered product information 920a, pending product information 920b, 920c, canceled product information 920d, "pharmaceuticals" 920e, "products subject to security tags" 920f, and "age verification products" 920g such as alcohol, shown in Figure 20, in a display format different from the display format of the registration confirmation screen 900 displayed only by the registered product information shown in Figure 19.
For example, the POS terminal 70 may display the registration confirmation screen 920 including the reserved product information 920b, 920c and the cancelled product information 920d in different screen colours such as background colours, or in different character colours or fonts.

Generally, when displaying the product information on the registration confirmation screen 920, the POS terminal 70 preferably displays the product information in order of high price, rather than in the order in which the product information was registered by the mobile terminal 20.
In addition, it is preferable that the POS terminal 70 places the pending product information 920b, 920c, the canceled product information 920d, "pharmaceuticals" 920e, "products subject to security tags" 920f, and "age verification products" 920g such as alcohol at the top of the list of registered product information 920a.
That is, it is preferable that the POS terminal 70 displays a list of the warning information and the product information on the registration confirmation screen 920 based on the degree of interest in the transaction.

By displaying information about pending products at the top of the registration confirmation screen 920, and by displaying the products with higher prices first, store clerks can quickly identify which products should be given priority, and can prevent forgetting to carry out procedures such as age verification.

The POS terminal 70 may be able to set and change the priority order of multiple types of reserved product information in response to the operation of the store clerk. The priority order for reserved product information can be set by the operation of the store clerk, such as "age verification" → "anti-theft tag" → "medicine" → "reserved product" → "exchange product" → "discount", and the POS terminal 70 displays the reserved product information on the registration confirmation screen 920 according to the above priority order.

The display of the reserved product information 920b, 920c and the canceled product information 920d, etc. is not limited to the example shown in Fig. 20. For example, the POS terminal 70 may arrange the reserved product information 920b, 920c and the canceled product information 920d, etc. in the left region of the registration confirmation screen 920 and display the registered product information 920a in the right region.
These displays allow the member or store clerk to easily grasp that among the items displayed in the list display, there are items that are on hold, items that are cancelled, items that require the intervention of a store clerk, etc., and that these are on hold or cancelled items.

The POS terminal 70 also displays a field 920j displaying the number of reserved items (including canceled items) in addition to a price range registration quantity display 900d showing the registered quantity of items by price range at the bottom of the registration confirmation screen 920. In the example shown in Fig. 20, the POS terminal 70 displays "6" in the field 920j displaying the number of reserved items (including canceled items).
In addition, when the store clerk operates the field 920j that displays the number of reserved products (including canceled products), the POS terminal 70 may highlight the reserved product information.

The POS terminal 70 may display the quantity of reserved items together with the quantity of items that require explanation by a registered salesperson or pharmacist, such as alcoholic beverages or Class 2 pharmaceuticals that require age authentication (items that require the intervention of a store clerk), or may display a separate column to display the quantity. In this case, the POS terminal 70 may display the target items by changing the display mode, such as the background color or text font/size, or by adding a mark, etc.

(Prohibition Processing)
If the input registration information includes pending product information 920b, 920c, canceled product information 920d, and products requiring store clerk intervention, the POS terminal 70 prohibits settlement processing based on the registration information including pending product information 920b, 920c, canceled product information 920d, and products requiring store clerk intervention (S705), following step S704.

For example, as shown in FIG. 20, the POS terminal 70 prohibits the execution of the settlement process by not displaying the "Checkout" key 900b that is displayed on the normal registration confirmation screen 900 on a registration confirmation screen 920 that includes pending product information 920b, 920c or canceled product information 920d, and products that require the intervention of a store clerk.

(Editing process)
The called store clerk makes the POS terminal 70 read a store clerk code or the like, and the POS terminal 70 that has prohibited the execution of the settlement process enables editing of the reserved product information.
For example, when a store clerk has the POS terminal 70 read a store clerk code or the like, the POS terminal 70 will display a comment such as "The store clerk ID has been read. Please register the pending items" on the display unit 750, and will also display a management screen 940 having a layout similar to the registration confirmation screen 920 shown in Figure 20.
The display of the management screen 940 differs from the registration confirmation screen 920 in that, instead of displaying "A store clerk will be coming soon. Please check the product details and wait", a message 940n "Management screen: Please register pending products" is displayed (see FIG. 22), and in that a "Call store clerk" key is not displayed (see FIG. 22).

When a store clerk touches the pending product information 940b on the management screen 940 displayed on the display unit 750, the POS terminal 70 displays an editing screen 930 on the display unit 750 for editing the pending product information 940b, as shown in Figure 21.
Furthermore, even if the store clerk does not read the store clerk code and the member operates the pending product information 920b, 920c and canceled product information 920d, "pharmaceuticals" 920e, "products subject to security tags" 920f, "age verification products" 920g such as alcohol, etc. on the registration confirmation screen 920 in Figure 20, the POS terminal 70 will not transition to the edit screen 930.
This makes it possible to prevent a member from editing a document without the assistance of a store clerk.

A scan button 930a is located at a prescribed position on the editing screen 930, and when a store clerk operates the scan button 930a, the POS terminal 70 displays image data obtained when the product code information is read.
The store clerk can check the reserved items by looking at the displayed image data, and can learn correct product information by going to the display shelves to check the prices of the items, etc. Editing on the editing screen 930 may be performed in an appropriate manner.

If all reserved items are displayed in a list on the editing screen 930, it is possible to reduce the amount of switching back and forth between the management screen 940 and the editing screen 930. Alternatively, the reserved items may be displayed in half the area of the registration confirmation screen 920 (for example, only the left side), and the editing screen 930 may be displayed in the other half (the right side), overlaying or replacing the registered item information. This reduces the effort required for the store clerk to transition between screens.

Note that the editing screen 930 is not limited to the example shown in FIG. 21. The editing screen 930 may be displayed as a pop-up, or may be displayed in a partial area (e.g., the left area) of the management screen 940.

For example, when a store clerk operates the reserved product NON file 940b on the management screen 940, the POS terminal 70 displays an edit screen 960 as shown in FIG. 30(a).
An editing screen 960 shown in FIG. 30( a ) is displayed as a pop-up on the management screen 940 , and includes a product information input field 961 for inputting a product, a quantity entry key 962 , a product cancellation key 963 , and a confirmation key 964 .

The POS terminal 70 has a product information input field 961 on the editing screen 960 for NON file products, which contains a product information field 961a, a PLU field 961b, a quantity field 961c, a minus key 961d, and a plus key 961e. The PLU field 961b displays the information read, and the product information field 961a is left blank.

The clerk selects an "amount" key such as the quantity entry keys 962, enters a quantity using the numeric keys to assign an amount according to that number, and operates the confirmation key 964, which inputs the price into the product information field 961a. Similarly, the clerk selects a "subcategory" key, enters a quantity using the numeric keys to assign a subcategory according to that number, and operates the confirmation key 964, which sets a subcategory in the product information field 961a and edits (confirms) the NON file product as tradable information.

In another method, a subcategory selection screen is popped up by selecting an "amount" key such as the number entry key 962, entering a number with the numeric keys to assign an amount according to the number, and operating the enter key 964. When a target subcategory is selected on the subcategory selection screen, the NON file product is edited (confirmed) as tradeable information. Furthermore, if the information of the NON file product is modified before the editing operation, each piece of information is displayed in each column of the editing screen 960, and the product may be registered by the store clerk operating the enter key 964.

Furthermore, when the store clerk operates the reserved product unscanned 940c on the management screen 940 (see FIG. 22), the POS terminal 70 displays an edit screen 960 shown in FIG. 30(b).
The editing screen 960 of the POS terminal 70 shown in Figure 30 (b) is displayed as a pop-up on the management screen 940, and includes a product information input field 961 for entering products, a quantity entry key 962, a product cancellation key 963, and a confirmation key 964.

By selecting an "amount" key such as the number entry keys 962, entering a number with the numeric keys to assign an amount according to that number, and operating the confirmation key 964, the price is entered into the product information field 961a. Similarly, by selecting a "subcategory" key and entering a number with the numeric keys to assign a subcategory according to that number, and operating the confirmation key 964, a subcategory is set in the product information field 961a and the NON file product is edited (confirmed) as tradable information.

In another method, a subcategory selection screen is popped up by selecting an "amount" key such as the number entry key 962, entering a number with the numeric keys to assign an amount according to the number, and operating the confirmation key 964. When a target subcategory is selected on the subcategory selection screen, the NON file product is edited (confirmed) as tradeable information. The editing screen 960 of the POS terminal 70 may be equipped with a scan key 965, and the store clerk may operate the scan key 965 to display products that have not been scanned.

Furthermore, when the store clerk touches the canceled product information 940d on the management screen 940, the POS terminal 70 displays a cancellation confirmation screen 970 for the canceled product, as shown in FIG.
The cancellation confirmation screen 970 is displayed as a pop-up on the management screen 940 , and includes a cancellation product display field 971 for displaying canceled products, a quantity entry key 972 , a product cancellation key 974 , and a registration key 973 .

The POS terminal 70 displays the canceled product in a canceled product display field 971, and issues a notification 975 such as "Are there any products left in the basket?" When the store clerk checks the basket and operates a product cancellation key 974, the POS terminal 70 confirms the cancellation of the product.
If there are any products remaining in the basket, the store clerk can operate the registration key 973 to register new products.

In addition, the POS terminal 70 has a product name field 971a, a PLU field 971b, a quantity field 971c, a minus key 971d, and a plus key 971e in the cancellation product display field 971, and "1" may be input in advance in the quantity field 971c.
When the store clerk operates the product cancellation key 974, the value in the quantity column 971c becomes "0", thereby confirming the cancellation of the product.
The POS terminal 70 may input "0" in advance in the quantity field 971c.

In addition, the POS terminal 70 may display a screen for confirming the registration of the product by having the store clerk operate the columns 940e to 940g of the management screen 940 for products that require the intervention of the store clerk. The POS terminal 70 may display a notification appropriate to the type of product on the screen for confirming the registration of the product, such as "Please remove the tag," "Please verify your age," or "Replacement products are available at the service counter. The transaction number is XXX."

The POS terminal 70 may transmit the reserved product information, etc., that the store clerk has modified on the editing screen to the higher-level device 10, and the higher-level device 10 may reflect the information in the product master, etc.
For example, in the case of a new product being handled for the first time, a product from a new business partner, or when the barcode has been forgotten to be updated, even if the barcode attached to the sale product is read, it may not exist in the product master, resulting in the product being a non-file product.

In such a case, the POS terminal 70 can prevent the item from becoming a reserved item thereafter by updating the item master with the revised reserved item information. The editing process for the item information here only requires the items required for item registration and payment processing. For example, the item name, unit price, barcode (item identification information), tax category (reduced tax rate, tax included, tax excluded, tax exempt, etc.).

In addition, for items where the price, etc., is unclear, the POS terminal 70 may be configured to allow provisional corrections by editing the department and amount.

Then, when the store clerk edits and updates the reserved item information 940b on the editing screen 930 to registered item information that can be accumulated, the POS terminal 70 corrects and displays the reserved item information 940b on the management screen 940 as shown in FIG. 22. Specifically, the display of "reserved item" in the display field of the reserved item information 940b is changed to "confirmed."

The POS terminal 70 may display the revised pending product information 940b at the top of the list of registered product information 940a without moving the display position of the information, or may display the revised pending product information 940b by moving it to match the display order of the other registered product information 940a after making the correction.
In addition, when the pending product information 940b, 940c and the canceled product information 940d are arranged in the left region of the management screen 940, the POS terminal 70 may move the revised pending product information 940b to the right region and display it.

Then, the POS terminal 70 changes the number of reserved items 940j displayed at the bottom of the management screen 940 to "5."

The POS terminal 70, which has modified the pending product information 940b, determines whether or not there is pending product information (including canceled product information) in the registered information, i.e., whether or not all pending product information has been modified (S707), and if it determines that all pending product information has been modified, it lifts the prohibition on settlement processing (S708).
Then, the POS terminal 70 displays the management screen 940 in which all of the reserved product information has been corrected, as shown in FIG. 23 (S709).

The management screen 940 shown in Figure 23 shows that correct product information has been entered and registered for the two pending product information items 920b and 920c for which product registration was not possible, and that the cancellation of registration of the one canceled product information item 920d, which was cancelled at the time of registration, has been confirmed. In addition, the products 920e to 920g, which require the intervention of a store clerk, are being confirmed by the store clerk.

The display indicating that the reserved product information has been corrected is not limited to displaying "Confirmed" in the display field of the reserved product information 940b as shown in FIG.
For example, the POS terminal 70 may change only the display color or background color of the reserved product information before and after the correction, and may display the information in such a way that the reason why the reserved product information was a reserved product can be understood even after the correction.

By checking the reserved product information 940b, 940c and the cancelled product information 940d, the POS terminal 70 updates the total number of products 940k and the total amount 940m.
Furthermore, once all of the pending product information, etc. has been confirmed, the POS terminal 70 changes the display of "estimate" displayed at the top of the management screen 940 to "total," and displays "0" in the number of pending products 940j displayed at the bottom of the management screen 940.

In addition, the POS terminal 70 changes the background color of the management screen 940 to a normal background color, and displays a “Checkout” key 920 q at the top of the management screen 940 .
When a member or store clerk operates the "Checkout" key 940q, the POS terminal 70 completes the product registration and correction process and transitions to the checkout screen shown in FIG.

On the other hand, if the POS terminal 70 determines in step S707 that all of the reserved product information has not been corrected, the process returns to step S706 and repeats the correction process until all of the reserved product information has been corrected.
That is, in the example shown in FIG. 22, the POS terminal 70 prohibits the execution of the settlement process until the reserved product information 940c and the canceled product information 940d are corrected.

The settlement screen 950 shown in FIG. 24 displays a "Cash" key 950a and a "Credit Card" key 950b for selecting the payment amount and payment method, and the member can carry out the settlement process by operating either key (S710) and complete the transaction.
The process flow in the POS terminal 70 has been described above.

-Function block diagram-
FIG. 9 shows an example of a functional block diagram of the sales data processing system according to this embodiment.
The mobile terminal 20 of the sales data processing system of this embodiment has a control unit 200, a display unit 250 such as a touch panel, and an input unit 260 such as a camera.

The control unit 200 includes a control means 201 for controlling the entire mobile terminal 20, a store identification means 202 for identifying the store where shopping will be performed, an acquisition means 203 for acquiring product identification information of the product to be purchased, a detection means 204 for detecting an operation for acquiring the product identification information, a product registration means 205 for identifying and registering product information based on the acquired product identification information, a reserved product registration means 206 for generating and storing information on products for which product information cannot be registered, a display means 207 for displaying the registered product information registered by the product registration means 205 and the reserved product information generated and stored by the reserved product registration means 206 on the display unit 250, a notification means 208 for notifying that the product information cannot be registered, an output means 209 for outputting the registered product information and the reserved product information, and a registered product cancellation means 210 for canceling the registered product information of the member.

The control means 201 controls the mobile terminal 20 as a whole, and, for example, stores each piece of input (acquired) or detected information in a storage device such as a memory as appropriate, reads each piece of information from the storage device and displays it on the display unit 250, and exchanges information with other devices.
Furthermore, the control means 201 executes various types of determination processing as necessary.
For example, in step S204 of the flow shown in FIG. 10, it is determined whether or not product identification information has been acquired, in step S205 it is determined whether or not product information has been identified based on the acquired product identification information, and in step S209 it is determined whether or not a payment instruction has been given by the member.

Furthermore, the control means 201 functions as an addition means for adding acquired product information, operation information when a member registers a product, or warning information regarding transactions such as discounts, as necessary.

The store identification means 202 executes a store identification process.
For example, the store identification means 202 outputs location information of the mobile terminal 20 to the higher-level device 10 and inputs information about the store where shopping will be done from the store master of the higher-level device 10, thereby identifying the store where shopping will be done.

The acquiring means 203 executes a product information acquiring process.
For example, the acquiring means 203 acquires the product identification information of the product based on code information attached to the product imaged using the input unit 260 of the mobile terminal 20. Note that, in the sales data processing system of the above embodiment, an example is used in which the product identification information is acquired by reading a barcode attached to the product, but the method of acquiring the product identification information by the acquiring means is not limited to reading a barcode.

For example, product identification information may be acquired by the mobile terminal 20 through non-contact detection using an RFID tag or by capturing a QR code. Furthermore, image recognition technology may be used to identify the product based on characteristics such as the product's appearance (shape, color, material, etc.).
In addition, images taken by customers when registering products can be stored on a server and AI learning can be performed to improve the recognition rate of the image recognition.
The acquiring means 203 also acquires the member's scanning action using the mobile terminal and operation information at that time (pretending to read, route traveled, time required, etc.).

The detection unit 204 executes a reading operation detection process.
For example, the detection means 204 detects that an operation for capturing an image of code information attached to a product has been performed by the input unit 260 of the mobile terminal 20 .

The product registration means 205 executes a product registration process.
For example, the product registration means 205 identifies a product based on the product identification information acquired by the acquisition process and the information stored in the product master, acquires the product information, and registers it as registered product information.

The reserved product registration means 206 executes a reserved product information generation process.
For example, when the product identification information cannot be acquired by the acquisition process or when the product identification information acquired by the acquisition process is not stored in the product master, the reserved product registration means 206 generates and stores information about the product as reserved product information. The reserved product registration means 206 functions as an addition means for adding, as necessary, attention-calling information such as product information of a product that requires the intervention of a store clerk.

The display means 207 executes a display process.
For example, the display means 207 displays, on the display unit 250, the registered product information registered by the product registration means 205 and the reserved product information generated by the reserved product registration means 206.
In addition, when the acquisition unit 203 acquires product information or operation information, the display unit 204 functions as a second display unit that displays the attention-calling information added by the addition unit.

The notification means 208 executes a notification process.
For example, when there is a product that cannot be registered by the member's product registration operation, the notification means 208 notifies the member through the display unit 250 or the like.
The output means 209 outputs the registered product information registered by the product registration means 205, the reserved product information generated by the reserved product registration means 206, and the like.

The registered product cancellation means 210 executes a registered product cancellation process.
For example, the registered product cancellation means 210 detects that a member has performed an operation to cancel a product registration, and creates registration deletion information and outputs information regarding the operation to cancel the registered product information to the higher-level device 10 .

The POS terminal 70 of the sales data processing system of this embodiment has a control unit 700, a display unit 750 such as a touch panel, an input unit 760 such as a camera, a printing unit 770 such as a printer, etc.

The control unit 700 includes a control means 701 that controls the entire POS terminal 70, an input means 702 that inputs product registration information, a display means 703 that displays the input registration information on the display unit 750, a settlement means 704 that settles the product based on the registration information, a notification means 705 that notifies a store clerk or the like when reserved product information is input, an editing means 706 that modifies reserved product information, and a prohibition means 707 that prohibits the settlement process by the settlement means 704 when reserved product information is included in the product information.

The control means 701 controls the POS terminal 70 as a whole, and, for example, stores each piece of input (acquired) or detected information in a storage device such as a memory as appropriate, reads each piece of information from the storage device and displays it on the display unit 750, and exchanges information with other devices.
Furthermore, the control means 701 executes various types of determination processing as required.
For example, in step S702 of the flow shown in FIG. 11, it is determined whether or not there is reserved product information in the registered information, and in step S707, it is determined whether or not there is any uncorrected reserved product information.

Furthermore, the control means 701 functions as an adding means for adding acquired product information, operation information at the time of member's product registration, or attention information regarding transactions such as discounts, as necessary.
The control means 701 also functions as a permission means for permitting settlement prohibited by the prohibition means 707 when an editing process (confirmation) is performed by the editing means (confirmation means).

The input unit 702 executes an input process.
For example, the input unit 702 inputs the registration information output by the output unit 209 of the mobile terminal 20 .
The display means 703 executes a process for displaying the registration information.
For example, the display means 703 displays the input registration information (product information and reserved products) on the display unit 750. In addition, the display form of the displayed registration information (product information and reserved products) is changed as necessary.
The display means 703 also functions as a first display means for displaying the attention-calling information added by the adding means at the time of settlement by the settlement means 704 .

The settlement means 704 executes a settlement process.
For example, the settlement means 704 performs a settlement process for the product based on the registered information. Prior to the settlement process, the payment method by which the customer will make the settlement is acquired.

The notification means 705 executes a notification process.
For example, when the input registration information contains reserved product information or canceled product information, the notification means 705 displays on the display unit 750 that a reserved product (cancelled product) exists, and executes a call process to call a store clerk to the POS terminal 70. The notification means 705 also executes a call process to call a store clerk according to the member's situation or other needs.

The editing means 706 executes an editing process.
For example, the editing means 706 displays an editing screen for amending the reserved product information, etc., input by the input means 702. A store clerk or the like edits the reserved product information (including information on products that require the intervention of a store clerk) on the editing screen to confirm the registered information, that is, the editing screen functions as a confirmation means for confirming the warning information. The amendment screen may be displayed by inputting a store clerk code, etc.

The prohibition means 707 executes the prohibition process.
For example, when the registration information contains reserved product information or canceled product information, the prohibition means 707 prohibits the settlement process until the reserved product information is corrected by the editing means 706 and registered as registration information.

The functions of the mobile terminal 20 or the POS terminal 70 of this embodiment will be further described below.
-How to display the list of registered details-
Next, the screen display of the mobile terminal 20 during product registration will be further described.
(Normal registration operation)
During shopping, the mobile terminal 20 displays a registration screen 810 shown in FIG.
When a member reads information such as a barcode attached to a product using the mobile terminal 20, the mobile terminal 20 displays the products in a second display area 812 located in the lower area of the registration screen 810 shown in Figure 16 (a), with the most recently registered product displayed in order at the upper position of the second display area 812.

As the member proceeds with the registration of products, the second display area 812 of the registration screen 810 of the mobile terminal 20 is filled with information on the registered products, and the product information whose barcode has been read earlier is no longer displayed in the second display area 812.
A member can check registered products by looking at the second display area 812, but when a large number of products are purchased, in order to check information on previously registered products, the member must scroll through the list displayed in the second display area 812 a lot, making checking cumbersome.
The mobile terminal 20 of this embodiment can expand the second display area 812 of the display unit 250 as necessary, allowing the member to more easily check the registered products.

Specifically, when a member has registered multiple products and it becomes impossible to display all of the product information registered in the second display area 812, the mobile terminal 20 displays an “Expand” key (operator) 813d in the third display area 813.
When a member operates the “Expand” key 813d, the mobile terminal 20 expands the second display area 812, as shown in FIG. 16 (b), and displays the second display area 812 and the third display area 813 using the entire area of the display unit 250.
In addition, by expanding the second display area 812, a “shrink” key (operator) 813e may be displayed in the third display area 813, which shrinks the second display area 812 to its original pre-expansion range.

It goes without saying that if it is not possible to display all of the products even if the second display area 812 and the third display area 813 are displayed using the entire area of the display unit 250, the products can be displayed by scrolling.
It should be noted that the method for expanding the second display area 812 is not limited to the method using the “expand” key 813 d arranged in the third display area 813 .

When the mobile terminal 20 uses the entire display unit 250 to display the second display area 812 and the third display area 813 and hides the first display area 811, it is preferable that the mobile terminal 20 disables the acquisition of image data by the input unit 260 of the mobile terminal 20 in conjunction with this.

It should be noted that the mobile terminal 20 does not necessarily have to expand the second display area 812 and the third display area 813 to fill the entire area of the display unit 250 when the “expand” key 813 d is operated.
The mobile terminal 20 may set the expansion range based on the member's operation, or may set the expansion range in a state in which all products can be confirmed according to the number of products.

The portable terminal 20 may immediately disable the acquisition of image data by the input unit 260 of the portable terminal 20 when the second display area 812 is changed to a range that includes the first display area 811, and may also disable the acquisition of image data by the input unit 260 of the portable terminal 20 when the second display area 812 is expanded to the reading range visibly displayed in the first display area 811.
As described above, the mobile terminal 20 can reduce unnecessary electricity consumption by disabling imaging by the input unit 260 at the point in time when it becomes impossible to check the imaging data using the first display area 811.

The mobile device 20 may also sequentially expand and display the second display area 812 as the member performs the product registration process. In this case, by setting the second display area 812 to a maximum expansion state, the mobile device 20 may automatically expand the second display area 812 while securing the first display area 811.

In addition, if a barcode (product identification information) is not recognized within the reading range of the first display area 811 for a predetermined period of time, the mobile terminal 20 may disable imaging by the input unit 260 to save power.

The mobile terminal 20 has the first display area 811 located at the top of the screen, so that when the operator operates the mobile terminal, the operator's line of sight conforms to the position of the mobile terminal's camera, and the subject to be imaged is also viewed beyond the top edge of the mobile terminal, providing excellent operability. The second display area 812 is located at the bottom of the screen because the screen only needs to be visible when checking purchased items, and when more items than the specified number of display lines have been registered, the full screen can be displayed by using the expansion key in the third display area 813 located in the center of the screen, and when the full screen display is insufficient, all items can be viewed by scrolling, etc.

Furthermore, since the current number of items purchased and the purchase amount are checked during the imaging process, the placement of the third display area 813 between the first display area 811 and the second display area 812, which display the imaging screen, is extremely advantageous in that it does not burden the operator with eye movement. In addition, the aforementioned expansion keys are easy to operate.

The mobile terminal 20 may change the display position of the controls on the screen based on the member information or at any timing. Specifically, the mobile terminal 20 usually has controls arranged in a way that takes into consideration the operability of right-handed people, so it is difficult to use for left-handed people or left-handed operation. In this case, the mobile terminal 20 may arrange the "checkout" key 813c at a position approximately the same distance from the center line of the screen as shown in Fig. 27(a), and may move the purchase quantity 812b and the like in the same way, or may arrange them at the top of the product name display as shown in Fig. 27(b).
That is, the mobile terminal 20 may store the appropriate locations of the operators for right-handed and left-handed operation, and automatically switch based on switching instructions, member information, etc. Furthermore, the mobile terminal 20 may purposely place the "Accounting" key 813c in a location that is difficult to operate, for example, on the opposite side.

The process flow relating to the above-mentioned method of displaying the list of registered details is shown in Fig. 26. This process flow corresponds to a subroutine of step S209 in the process flow shown in Fig. 7.
In step S401, the mobile terminal 20 displays the first display area 811 and the second display area 812 on the display unit 212. Then, the mobile terminal 20 detects that an expansion operation has been performed on the second display area 812 by the member (S402), and upon detecting that the expansion operation has been performed, executes an expansion process for the second display area 812 (S403).

Then, it is determined whether the expanded second display area 812 has reached a predetermined range (S404).
The predetermined range in step S404 may be, for example, a range that includes at least a part of the first display area 811, a range that includes a reading range in which a barcode can be recognized, or a range that includes the entire first display area 811.

When the mobile terminal 20 determines in step S404 that the second display area 812 has reached the predetermined range, the mobile terminal 20 proceeds to step S406 and disables the acquisition means 203. Specifically, the imaging function of the camera (imaging means by the input unit 260) is turned off.

On the other hand, if it is not detected in step S402 that an expansion operation has been performed by the member, the process proceeds to step S405, where it is detected that a barcode has not been recognized within the reading range of the second display area 812 for a predetermined time, and if it is determined that a barcode has not been recognized for a predetermined time, the mobile terminal 20 proceeds to step S406 and disables the acquisition means.

If the barcode is recognized in step S405, the process returns to step S401 to continue displaying the registration information.
The above describes the process related to the method for displaying the product registration screen.

-Multiple purchases of the same product-
When registering a product using the mobile terminal 20 of this embodiment, if a member purchases multiple copies of the same product, this can be done by changing the quantity displayed in the registered product information 812d on the registration screen 810, or the code information of the same product can be imaged multiple times.

However, if the code information of the same product is captured multiple times consecutively or at intervals, the mobile terminal 20 displays a message to confirm whether or not it is OK to purchase the same product multiple times, or changes the confirmation sound or vibration pattern when acquiring the product identification information. For example, it displays a message such as "The same product has been scanned twice. Is the registration correct?" to inform the customer whether the operation was correct or incorrect.
This allows the member to recognize that the product registration process he or she is currently performing is the acquisition of code information multiple times.

Specifically, when a member photographs the same product and confirms the product, the mobile terminal 20 may display the message "The same product has been registered. Would you like to purchase?" along with a "Yes/No" selection key to request confirmation.
When the user is checking the amount, the mobile terminal 20 may display a screen that allows the user to add or subtract the amount. This method is efficient when the user registers the same product consecutively, since the amount may be increased.

When a member registers the same product, registers another product, and then registers the same product again, the mobile terminal 20 performs the same confirmation.
To prevent fraud, the mobile terminal 20 may allow registration of multiple products by reading the same number of times as the purchased quantity. Similarly, the mobile terminal 20 may delete the same number of times as the deleted quantity.
Either operation or both may be adopted for the operation of purchasing multiple copies of the same product on the mobile terminal 20. Also, the mobile terminal 20 may change the operation method according to the operation level (proficiency) of the member.

When a member registers the same product by capturing images multiple times, the mobile terminal 20 sets the purchase quantity of the registered product information for that product to the multiple purchases and displays it in the latest line of the list display. It goes without saying that registrations of the same product captured multiple times may be displayed in multiple lines.

-Registering products sold separately-
For products that are not suitable for affixing a barcode, such as fruits and vegetables like cucumbers and products sold individually like fish, the product registration process may be performed, for example, by capturing an image of the barcode attached to the shelf or container on which the product is displayed. Alternatively, the barcode displayed on an electronic shelf tag may be captured.
Needless to say, if a barcode is directly attached to the product, the barcode may be photographed.

The mobile terminal 20 may identify products by capturing an image of the product that is not suitable for affixing a barcode and performing object recognition. The registration process may also be performed by voice or the like, or by displaying preset keys on the display unit and having the member select one.

In addition, when selling loose items, discounts are often applied for bulk purchases (multiple purchases). When a member captures the barcode of an item to which a bulk purchase discount applies, the mobile terminal 20 displays a pop-up 850 with the number of items that will be cheaper when purchased in bulk set as the initial number to be purchased, as shown in FIG. 17(a).

For the loose item, the pop-up 850 displays the product name 850a, the price per unit 850b, the number of items purchased 850c, and the selling price 850d, as well as a "+" key 850e and a "-" key 850f for changing the number of items purchased, a "Cancel item" key 850g, and a "Confirm" key 850h.

In the example shown in FIG. 17(a), the mobile terminal 20 displays a pop-up 850 in which a product with the product name "Corn from Hokkaido" is registered, and displays that by buying three of the product, which costs 120 yen each, a savings of 60 yen can be achieved. The mobile terminal 20 also sets the purchase quantity 850c to the initial value, which is the number of products in a bundle, "3." The member can see from the pop-up 850 that the product is a discounted product for bulk purchases, and can easily set up product registration for bulk purchases by operating the "OK" key 850h.

Note that members can change the number of items purchased by operating the "+" key 850e and "-" key 850f, and can also cancel the registration of a product by operating the "Cancel Product" key 850g, just like with regular product registration.

When the member operates the "-" key 850f to change the number of purchases, the mobile terminal 20 changes the display of the pop-up 850 as shown in FIG. 17(b).
In the pop-up 850 shown in FIG. 17(b), the purchase quantity 850c has been changed to "1", the sales price (120 yen) without any discount is displayed, and it is indicated that a purchase of three bottles will result in a savings of 60 yen.

The content and timing of the display encouraging bulk buying are not particularly limited, and when the member changes the number of items to be purchased, the mobile terminal 20 may display a message informing the member that the bulk buying discount will no longer apply.

Then, when the member operates the "OK" key 850h (confirmation operation), the mobile terminal 20 registers the registration information according to the number set in the purchase quantity 850c.
In this way, the member can know from the pop-up 850 that the item is a discounted product for bulk purchases, and can easily set the bulk purchase by operating the "OK" key 850h.
Incidentally, even for products to which a bulk purchase discount is applied, the initial value may be set to "1."

This registration operation also applies to regular single-item products. In other words, the registration operation can be performed in the same way by setting sales conditions such as bundle sales or bulk purchases. The sales conditions are set using product master data or special sale master data, and are generated as information that allows a mobile terminal to identify the product. Furthermore, special sales may also be applied to members only, not to general customers.

In addition, for products with sales quantity restrictions, such as a sales condition of up to XX units per person, the "+" in the upper limit quantity may be disabled or hidden.
In addition, only the "+" may be counted up in the quantity unit set in the sales conditions, and further, the manner in which the addition/subtraction keys are displayed and functioned in "sales condition quantity" units may be changed.

Furthermore, when the "sales condition quantity" is subtracted, the non-fulfillment of the sales condition is notified, and the display format of the explanation of the sales condition may be changed. Also, when "1" is added to the "sales condition quantity", the display may be switched to the next sales condition fulfillment quantity and the total discount amount, etc.
This makes it possible to encourage members to purchase the quantity specified in the sales conditions.

FIG. 29 shows an example of a process flow relating to the above-mentioned registration operation of loose products.
The mobile terminal 20 inputs product information of the product that the member wishes to purchase (S501).
Specifically, the input unit 260 of the mobile terminal 20 obtains product identification information by reading a barcode attached to the product, and obtains (inputs) product information of the product from the product master 110 based on the product identification information.

Next, the mobile terminal 20 detects whether or not special sales conditions are set in the sales conditions of the input product information (S502). For example, in the table shown in Fig. 28(a), it detects whether or not sales conditions (plan number) exist for the product with the input product identification number.
The special sales conditions referred to here are sales conditions in which some condition is set regarding the number of items sold, such as items that are subject to bulk sales or an upper limit is set on the number of items that can be purchased per person.
Furthermore, when the number of items to be purchased is stored in advance in a shopping list or the like, the number of items may be included in the sales conditions. Also, the sales conditions may indicate that the item is one that the customer frequently purchases (item with a purchase history).

In step S502, if it is detected that special sales conditions are set in the product information, the mobile terminal 20 obtains information on the number of items that have been fulfilled and that is set in the sales conditions, for example, by referring to the product master sale data shown in Figure 28 (b).
Then, the mobile terminal 20 determines the number of items to be purchased by the member based on the acquired information on the number of items that have been sold, i.e., the detected sales conditions (S503).

For example, the mobile terminal 20 detects from the acquired product identification information that the product is 0001 (corn), which indicates that the product is a target product for which a bulk discount is set for project number 1, and acquires that the number of units for which the sales conditions for project number 1 are met is three, and determines the number of units subject to the discount as "3". In addition, for example, if the product is a limited quantity product with sales conditions set such as a limit of two per person, the mobile terminal 20 determines the limited quantity as the number of units. Furthermore, if the product is one that the customer frequently purchases (a product with a purchase history), the mobile terminal 20 may determine the number of units purchased last time.

After deciding the number, the mobile terminal 20 displays a confirmation screen for confirming the registration of the product on the display unit 250 with the number set in advance as the purchase quantity (S504).
Ordinarily, when a member reads the barcode of a product, the mobile terminal 20 sets the purchase quantity to "1" and registers the product, but if the product obtained by reading the barcode has special sales conditions set for it, for example if it is a product eligible for bulk discounts, a confirmation screen will be displayed with the bulk purchase quantity set, as shown in FIG. 17(a).

In step S504, the mobile terminal 20 that has displayed the confirmation screen waits for the "Enter" key 850h arranged on the confirmation screen to be operated.
When an operation to change the number of items to be purchased is performed on the confirmation screen, the number of items to be purchased is changed in accordance with the operation.

In step S506, when it is detected that the "Enter" key 850h has been operated by the member, the mobile terminal 20 registers the product based on the number of items purchased at the time the "Enter" key 850h was operated, and completes the process.

On the other hand, if it is detected in step S502 that no special sales conditions are set in the product information, the process proceeds to step S505, the purchase quantity is set to "1", and without displaying the confirmation screen, the process proceeds to step S507, the product is registered, and the process is completed.
The above describes the process related to the registration operation of loose products.

--Registering variable quantity products--
When registering products sold by weight such as meat and prepared foods, a pricing label on which product information is recorded is printed by a scale for weighing the products sold by weight, and the mobile terminal 20 performs product registration processing by reading the barcode printed on the pricing label.

By connecting the weighing device to a store controller, the product information recorded on the issued pricing label can be added to the product master.
In addition, for variable weight products, the purchase quantity may be set not to be changeable by operating the list display on the registration screen 810.

In addition, if the weighing device is connected to a network, the weighing device and the mobile terminal 20 may be connected by short-range wireless communication or the like, the barcode of the product to be weighed may be read by the mobile terminal 20, the product to be weighed may be specified by operating a key to specify the product, and the product may be weighed on the weighing device, and information on the weighed product may be registered in the mobile terminal 20. In this case, the label issued by the weighing device may be a label that lists only information such as the expiration date and be affixed to the product.

Furthermore, if membership information and app user IDs can be recognized using an IC or other device, shopping data can be generated even from bulk-only weighing devices and uploaded as customer shopping data, and by comparing the two sets of data, it will be possible to prevent fraud.
In addition, if the product has only been specified and the mass has not been determined, i.e., the purchase price has not been determined, the product may be treated as a reserved product.

-Register coupon information-
The mobile terminal 20 can register coupon information of a paper coupon. For example, by reading a barcode printed on the coupon, the mobile terminal 20 can obtain the recorded discount information and reflect it in the registered product information.
If the recorded coupon information is unique, the coupon information can be invalidated by reading the coupon information.
Furthermore, if a coupon needs to be collected, a store clerk may be called during shopping to input the information, or the POS terminal 70 that performs the settlement process may be specified as a manned POS or the like to carry out the settlement.

The mobile terminal 20 may automatically calculate the maximum discount condition based on the read coupon information, and output the registration information reflecting the price of the product.
In addition, the mobile terminal 20 may include the read coupon information in the product registration information and output it as code information such as a symbol code, and have the code information read by the POS terminal 70, thereby outputting the coupon information to the POS terminal 70, etc., and performing discount processing, etc.

In this case, shopping identification information and coupon identification information may be recorded in the code information such as a QR code (registered trademark) output by the mobile terminal 20, and the POS terminal 70 that has acquired the identification information may acquire registration information and coupon information from the higher-level device 10 based on each identification information.

- Using the shopping list -
A member uses a mobile terminal 20 to specify a store and download all or part of the store's product master data, and the mobile terminal 20 creates a list of products that the member plans to purchase (hereinafter, "shopping list") in response to the member's operation.

For example, the member selects and registers products that he or she plans to purchase from a list of product information displayed on the display unit 250 of the mobile terminal 20, and the mobile terminal 20 creates a shopping list. In addition, the mobile terminal 20 may automatically register products that are purchased on a daily basis as products to be purchased when creating a shopping list.

When registering products at a store, the member can display the shopping list on the display unit 250 of the mobile terminal 20 and use the shopping list.
The order of the products to be purchased in the displayed shopping list may be in the order of store aisles or departments, or may be freely set or changed.
Also, by voice input such as "vegetables" or "food," the mobile terminal 20 may display only the relevant department, or may display it at the upper position of the display area.

When a member registers a product, the mobile terminal 20 changes the display of the product information on the shopping list and deletes the product from the shopping list, thereby letting the member know that the product he or she plans to purchase has been registered.
In addition, the mobile terminal 20 may be configured to cancel or the like by notifying the planned purchase quantity for multiple items to be purchased and registering the planned quantity.

The mobile terminal 20 may also be configured so that the product registration process cannot be performed until the member has specified the product to be registered from the shopping list. This allows the member to reliably purchase the product he or she plans to purchase, and also prevents excessive impulse buying, such as the purchase of unplanned products.

If a member specifies a product and then images a product other than the specified product, the mobile terminal 20 may display an error message or give a similar notification. The mobile terminal 20 may also display an error message or give a similar notification when an image of a product other than the specified product is captured by the member on the shopping list.

The mobile terminal 20 allows the registration process for products that are not on the shopping list, but in that case, it is preferable to notify the user that the product is not on the shopping list, such as by displaying a screen to confirm the purchase.
Furthermore, the mobile terminal 20 may display the list of registered information in such a manner that it is possible to distinguish between products that are on the shopping list and products that are not on the shopping list.

Furthermore, the mobile terminal 20 may allow the member to complete product registration by, for example, clicking on the product name displayed in the shopping list. This eliminates the need for the member to read the product's barcode, allowing for smoother product registration. Furthermore, by using the shopping list to register products, the registration process can be easily performed for products that do not have a barcode attached.

The mobile terminal 20 may automatically add products that are purchased regularly to the shopping list based on past shopping history information, and may create a "shopping list" by scanning barcodes of empty containers and the like at home. The mobile terminal 20 may also be limited to functioning as a preset key for products that do not have barcodes attached. There is no need to take the trouble to read barcodes on price plates and the like. An operation button may also be provided to display alternative products, such as the place of origin (manufacturer), specifications, and capacity.

If there is an item that is registered in the shopping list but has no registration information, the mobile terminal 20 may notify the member that the item was forgotten to be purchased by displaying the information on a registration screen or the like, and may even inquire as to whether or not to purchase the forgotten item.

- Registration information output process -
The output process of the registration information at the time of settlement will be further described.
The registration information is output by converting the shopping identification information into a QR code (registered trademark), displaying it on the mobile terminal 20, and having the POS terminal 70 read it.
The POS terminal 70 that reads the QR code (registered trademark) requests shopping information from the higher-level device 10 using the acquired shopping identification information, and upon receiving the request from the POS terminal 70, the higher-level device 10 calculates a subtotal using the shopping information linked to the shopping identification information and transmits the calculated shopping information to the POS terminal 70.

A QR code (registered trademark) encoding the shopping information may be displayed on the screen of the mobile terminal 20 and output to the POS terminal 70. In this case, the code information (QR code (registered trademark) 840a) displayed on the output screen 830 of the mobile terminal 20 is read by the input unit 760 of the POS terminal 70 to output the registration information and perform the settlement process. However, if there is a lot of registration information and one piece of code information is not enough, multiple pieces of code information are displayed in succession and read in succession by the input unit 760 of the POS terminal 70 to output all of the registration information. In this case, it is preferable that the mobile terminal 20 displays the total number of pieces of code information and the number of the currently displayed piece of code information on the output screen 830.

In addition, rather than reading shopping identification information, etc. using a QR code (registered trademark), the POS terminal 70 may acquire and receive information on registered products by having the mobile terminal 20 display information in the memory area of the shopping file, and the POS terminal 70, having acquired the information in the memory area, acquire a "shopping file" based on that information.
The information output to the POS terminal 70 is not limited to a QR code (registered trademark), but may be a one-dimensional code. Furthermore, the information may be something that can identify member information, such as an NFC identification code of the mobile terminal 20. By setting the identifier in the shopping file, the shopping file can be easily identified.

When outputting the registration information by displaying code information (QR code (registered trademark) 840a) on the output screen 840 of the mobile terminal 20, the mobile terminal 20 does not stop displaying the code information until the POS terminal 70 completes input processing of the registration information.

For example, when the POS terminal 70 has completed reading the code information (QR code (registered trademark) 840a), it may notify the mobile device 20 of this fact, and when input of the code information in the POS terminal 70 is completed, the display unit 250 of the mobile device 20 may display a message such as "Product registration is complete. Subsequent operations will be performed at the settlement device," and the display of the code information may then cease.

This allows the member to know that the product registration process using the mobile terminal 20 has been completed, and allows him or her to concentrate on the payment process using the POS terminal 70.
When the product registration process is completed, the mobile terminal 20 such as a smartphone closes the output screen 830 displayed on the display unit 250 and returns to the start screen 800.

Furthermore, the output of the registration information from the mobile terminal 20 to the POS terminal 70 is not limited to displaying code information.
For example, a customer may complete the registration process using the mobile terminal 20 and select a POS terminal 70 to perform the settlement process, whereby the mobile terminal 20 may identify the POS terminal 70 and output the registration information to the POS terminal 70 via the network.

Furthermore, the input unit 260 of the mobile terminal 20 may read the identification information of the POS terminal 70 attached to or displayed on the screen of the POS terminal 70, and output the registration information to the POS terminal 70 corresponding to the read identification information via a network. In this case, the registration information may not be output directly to the POS terminal 70 selected by the mobile terminal 20, but may be output via a higher-level system such as the higher-level device 10 or the store controller 60.
That is, the mobile terminal 20 may output the shopping identification information to the selected POS terminal 70, and the POS terminal 70 that has input the shopping identification information may request and obtain registration information corresponding to the higher-level system based on the shopping identification information.

In addition, the mobile terminal 20 may receive status information of the POS terminal 70 and display a status button or the like of the POS terminal 70 on the display unit 250, and when a member selects a POS terminal 70, output registration information to the selected POS terminal 70.
Furthermore, based on the status information transmitted from the POS terminal 70 to the mobile terminal 20, the mobile terminal 20 may automatically select the POS terminal 70 that outputs the registration information or shopping identification information, and output the information.
The method of outputting the registration information from the mobile terminal 20 to the POS terminal 70 is not particularly limited and may be any suitable method.

When shopping, a member may remember that they forgot to buy an item during the checkout process. In such a case, the member can press a cancel button or the like displayed on the display unit of the POS terminal 70 during the checkout process, which will cause the POS terminal 70 to display a notification screen on the display unit 730 stating, for example, "Checkout will be canceled. Subsequent operations will be performed on your smartphone." The registration screen 810 can also be displayed again on the display unit 250 of the mobile device 20, allowing the member to continue registering the item.

- Settlement process -
The member selects a payment method to be used for product payment on the checkout screen 950, but if the payment method is registered in advance when the member registers, the POS terminal 70 does not need to display a screen for selecting the payment method. Note that even if the payment method is registered, it is preferable to be able to change the payment method.

For products that require age verification, such as alcoholic beverages, a store clerk must be called in the same way as reserved products. Also, for pharmaceuticals, a pharmacist or registered salesperson is required to provide an explanation for Class 2 pharmaceuticals, so a store clerk may be called in a separate manner from reserved products.

The sales data processing system may treat these items in the same way as reserved items, store them as reserved item information, and call a store clerk by a notification means at the time of payment.
Furthermore, it is preferable that the POS terminal 70 prohibits a transaction by prohibition means unless editing (confirmation processing) is performed in the same manner as with the reserved product information.
Furthermore, a notification may be given when a pharmacist or registered distributor is not present.

Payment can be made with gift certificates or points earned by point members. Coupons and other discount tickets can also be used, and payment can be made in the same way as with regular payment processing, including the payment of change and the issuance of receipts.
The sales data processing system may automatically call a store clerk when a store clerk's intervention is required for the collection of a gift certificate, etc. Alternatively, the display unit of the mobile terminal 20 or the POS terminal 70 may display a message directing the user to a service counter or a manned POS.

It is also preferable that the sales data processing system controls so that payment processing is not performed based on registered product information registered in a store other than the store specified by the member.
In other words, the basket data (shopping file) generated by identifying the store contains store identification information, and when another store outputs the registration information processed by the identified mobile terminal 20 and attempts to perform the payment process using the POS terminal 70, an error message such as "This is not a purchase from this store" may be displayed on the display unit 750 of the POS terminal 70, and a store clerk may be called.

In addition, when the product registration process is performed using a mobile terminal 20 that has identified another store, a message such as "Payment at the other store has not been completed. Would you like to create basket data for our store?" or "You are logged in to another store. You cannot log in" may be displayed on the display screen of the mobile terminal 20 to prevent shopping at the other store.

It is also preferable that the sales data processing system have a store clerk check the payment as necessary during the settlement process.
The check by the store clerk may be performed in the store clerk calling process in step S703 of the flow in FIG. 11, but may also be performed at another timing.
Furthermore, the check of the settlement process by the store clerk may be carried out randomly as a spot check, but it is preferable to check according to the operation status and operation level of the member's mobile terminal 20 .

For example, the sales data processing system may perform a check by a store clerk for members whose membership level stored in the customer file is the lowest level L1. This ensures that a store clerk will always check and support a member who is using the service for the first time.
On the other hand, for members at a high level L5 who have completed the registration process multiple times using the mobile terminal 20 and have few operational errors using the mobile terminal 20, checks and support by store staff are omitted, thereby reducing the burden on the store.

-Prevent forgetting to pay-
When the member moves outside the store without completing the payment process for the purchased item, the mobile terminal 20 notifies the member that the payment process for the purchased item is incomplete.
Specifically, the location of the mobile terminal 20 is identified using GPS location information, and if the mobile terminal 20 moves outside the store premises without completing the payment process, the mobile terminal 20 notifies the customer via their registered email address or app screen.

In addition, when a product registration process is performed using the app, the mobile terminal 20 may notify the customer by not forcibly terminating the app until the payment process is completed and by prohibiting the launch of other apps.
In addition, the mobile terminal 20 may notify the user by email or the like that automatic payment will be made using a payment method such as a credit card that has been registered in advance.

Furthermore, the sales data processing system of this embodiment may be operated without performing settlement processing at the settlement device by registering credit, electronic money, or a withdrawal account at a financial institution. However, since members can shop with peace of mind if they confirm the contents of their purchases, the member may decide at their own discretion to confirm the contents at the settlement device or a device with similar functionality.

In addition, if there are no pending products or if there is no need to handle cash payments, gift certificates, coupons, etc., depending on conditions such as the member's operation level, in other words, if there is no need to use the settlement device for online payment or direct debit, the mobile terminal 20 may notify the user that operation of the settlement device may be skipped when displaying the registration information or shopping identification information in the registration completion operation in a QR code (registered trademark) or the like, or may display a notification or guidance such as "No operation is required on the settlement device" instead of the screen.

- Display purchase history -
The sales data processing system of this embodiment stores the operation history of the member using the mobile terminal 20 from the time he or she enters the store until the time the member completes the settlement process at the settlement device, and the status of the mobile terminal 20, and can display (display warning information) on the display unit 250 of the mobile terminal 20 or the display unit of the POS terminal (settlement device) 70 as necessary.

For example, as shown in FIG. 20, when a member uses the mobile terminal 20 to read the barcode of a product, the POS terminal 70 displays a situation where the product registration information could not be read as "Pending product not scanned" 920c, and also displays a situation where the member performed a barcode reading operation on a product and was able to obtain product identification information, but the product information does not exist in the product master as "Pending product NON file" 920b.
Furthermore, the POS terminal 70 displays a situation in which a member uses the mobile terminal 20 to register an item and then cancels the registration of that item as a "cancelled item" 920d.

The operation history displayed by the sales data processing system of this embodiment is not limited to operations for registering reserved products or canceling registered products.
For example, during a limited time sale, a member may use the mobile terminal 20 to display discount information (such as a discount sticker) applied to a product as "discounted product" 920h on the display unit (display of warning information).

Normally, service information (discounts, discounts) related to service items is stored in the upper device 10 in association with the item, and the service information (discounts, discounts) is automatically reflected based on the item identification information by reading the item's barcode.

On the other hand, when it comes to discounts and time-limited sales on prepared foods or clearance sales of vegetables, discounts are sometimes given by store clerks who see the items and then put discount stickers or the like on them at their discretion.
In this case, since it is difficult to link the service information to the higher-level device 10, the member may first read the barcode (discount information) written on the discount sticker that he or she has attached himself or herself, and then apply the discount to the product by reading the product's barcode, etc.
The discount may be applied by reading the discount information on the discount sticker after reading the bar code of the product.
In addition, the discount information on the discount sticker is not limited to a barcode, but may be text such as "50% off" or symbols such as "◯" or "◎", and is not particularly limited as long as it can be recognized by the mobile terminal 20.

When discounts are applied in this way, for example, if service information for a 50% discount is attached to product A, there is a possibility that fraud could occur by reading the barcode information of product B, which does not have the discount applied, and then reading the service information of product A, resulting in the 50% discount being applied to product B as well.

In order to reduce these fraudulent transactions as much as possible, if a member registers a 50% discount five or more times, the POS terminal 70 may classify the member's transaction as a transaction requiring caution (adding warning information) and, like other pending items, display this at the top of the registered item information 920a on the registration confirmation screen 920 as a discount transaction requiring the intervention of a store clerk (displaying warning information).
It should be noted that the POS terminal 70 may thereafter manage the member as a cautioned customer.

The sales data processing system may set a discount availability flag and a maximum discount value in correspondence with product identification information in the product master 110, thereby making it impossible to register products with fraudulent discounts.

For example, the sales data processing system may set the product identification information of product B on the product master 110 to "no discounts available," thereby prohibiting the execution of discount processing when a member reads the barcode information of product B and the 50% discount service information, and may notify the member that "This product is not eligible for discounts. It is possible that a discount sticker for another product has been read."

The sales data processing system can also set "Upper limit: 20% off" in the product identification information of product C on the product master 110, so that when a member reads the barcode information of product C and service information that exceeds the upper limit, the system prohibits the discount process from being executed and notifies the member of a similar error message.

In addition, when the execution of the discount process is prohibited, the sales data processing system may store the member in question in the member master 130 as a customer to be warned about and set up so that a store clerk will be involved at the time of payment, or may display the product requiring confirmation (display warning information) on the registration confirmation screen 920 along with a message such as "discount" in the same way as other reserved products.

In addition, when a member's smartphone is used as the mobile terminal 20, a battery for the smartphone may be lent.
A member can use a mobile terminal 20 to read a QR code (registered trademark) or the like attached to the battery to link and manage the battery to the member; at that time, the POS terminal 70 may display on the display unit the status that the battery is being loaned out (display warning information), and may even issue a notification urging the member to return the battery after the settlement process is completed.

The POS terminal 70 may also display the battery alongside other reserved items on the registration confirmation screen 920 of the member who lent the battery as an item requiring confirmation (displaying warning information) along with a message such as "battery."

In addition, when registering a product, a member may attach his/her mobile terminal (smartphone) 20 to a smartphone holder placed in a specified position on the shopping cart (e.g., at the handle position) so that the camera portion is exposed, and register the product by reading the barcode of the product with the mobile terminal 20.
This will enable members to shop while constantly monitoring the status of their shopping cart and their personal bags.

Furthermore, while the mobile terminal 20 is fixed to a smartphone holder, the camera may be activated to monitor changes in the products in the basket, either constantly or when hand movement is detected.
This allows the mobile terminal 20 to detect when an unregistered product has been placed in the basket, and when this is detected, it may determine that this is fraudulent and notify a store clerk, etc.

In addition, when the mobile terminal 20 detects that an unregistered product has been added to the basket, it may display (display warning information) such as "An unregistered product may have been added to the basket. Please register the correct product."

In order to avoid the need to transfer items from the basket to a shopping bag after payment is complete, the mobile terminal 20 may display a screen on the display unit 250 at the start of shopping to confirm whether the member has brought their own bag.
If the member selects on the confirmation screen that he/she does not have his/her own bag, the mobile terminal 20 may transition to a screen for purchasing a plastic bag and encourage the member to purchase one, or may display a message urging the member to purchase a plastic bag provided by the store.
This allows members to place their own bag or plastic bag in the shopping cart before starting shopping, eliminating the need to transfer items from the basket to a shopping bag after payment is complete.
In such a store, it is preferable that a space where plastic bags can be purchased is provided at the store entrance.

Furthermore, if the member refuses to purchase the plastic bag, the mobile terminal 20 may add warning information to the shopping information, and the POS terminal 70 may issue a notification to call a store clerk at the time of payment.
Furthermore, if a member selects to purchase plastic bags, the mobile terminal 20 may add warning information to the shopping information, and the POS terminal 70 may display, at the time of payment, on a registration confirmation screen or the like, an indication of the number of plastic bags purchased, and prohibit the payment process unless confirmation is received from a store clerk.
In order to monitor the status of the plastic bag using the mobile terminal 20 while the plastic bag is placed in the shopping cart, it is preferable that the plastic bags distributed at the store have a large opening, and it is also preferable that the reusable bags have a large opening.

When a product is registered, the mobile terminal 20 may notify the member by flashing the screen for a moment, or by generating a reading sound such as a shutter sound.
Furthermore, if the member is holding the mobile terminal 20 in his/her hand while performing the registration operation, the member may be notified that the product has been registered by applying vibration.

Whether the member is shopping with the mobile terminal 20 fixed to a shopping cart or holding it in his/her hand can be determined using a gyro sensor or the like built into the mobile terminal 20, and the mobile terminal 20 can provide an alert by using a suitable combination of flash alerts, reading sounds, and vibration alerts depending on the situation.

The POS terminal 70 may notify the customer to take the mobile terminal 20, such as a smartphone, home with them when the payment process is completed.
For example, when a member uses the POS terminal 70 to read the QR code (registered trademark) displayed on the mobile device 20 during payment, the POS terminal 70 may display a message on the registration confirmation screen 920 such as, "Payment will begin. Operation of the mobile device has been completed. Please put it away so you do not forget."

The higher-level device (cloud service) 10 or the POS terminal 70 may display a registration confirmation screen 920 and notify the mobile terminal 20 that the transaction has progressed to settlement processing, and upon receiving the notification, the mobile terminal 20 may display a message such as "Please settle the bill" on the display unit.

Furthermore, when the settlement process is completed at the POS terminal 70, the POS terminal 70 notifies the mobile terminal 20 that the transaction has been completed, and the mobile terminal 20 that receives the notification may display "Settlement has been completed. Thank you for your use." on the display unit 250, and may then display the start screen 800 shown in FIG. 12(a) or the registration screen 810 shown in FIG. 12(b) after a specified operation or after the passage of a specified time.

In addition, the sales data processing system may identify the route taken by the member from entering the store to the POS terminal 70 based on GPS information from the mobile terminal 20 or information on the registered products, etc., store the route taken, and display the status of the mobile terminal 20 on the display unit of the POS terminal 70 (display warning information).
In addition, the sales data processing system may identify the length of time a member spends in the store from the time they enter the store to the POS terminal 70 in relation to their travel route, store the information in relation to the travel route, and display the information on the display unit of the POS terminal 70 as the status of the mobile terminal 20 (display warning information).

The sales data processing system may also store the product registration operations performed by the member from the time they enter the store to the POS terminal 70, along with the time at which the operations were performed, and display the product registration operation status in chronological order on the POS terminal 70 (display warning information).

Furthermore, the sales data processing system of this embodiment may accumulate data on the registration operation status of the stored products, and determine the display position of the products in the store by analyzing the registration operation patterns based on the accumulated data.

Furthermore, the sales data processing system of this embodiment may infer unauthorized operations by store staff by analyzing registered operation patterns based on the accumulated data.
When a registration operation by a member is suspected to be an unauthorized operation, the sales data processing system may display a message to that effect on the display unit of the POS terminal 70 (display warning information).

For example, if there is a pending product whose code information cannot be read during the member's registration operation, or if the registered product information is cancelled, the sales data processing system preferably notifies the member on the display so that a store clerk can check and provide support.

Furthermore, the mobile terminal 20 or the POS terminal 70 may refer to the member file to obtain the number of past cancellations and have a store clerk check members who have made a predetermined number of cancellations or more, or may refer to the shopping file to have a store clerk check members who have made a predetermined number of registration deletion (cancellation) operations during the same purchase.

Specifically, the POS terminal 70 may be set to call a store clerk for a transaction in which the product registration cancellation operation is performed multiple times (e.g., three times) or more during the transaction. The number of times that the sales data processing system will notify the user may be set by the store clerk as appropriate.
Furthermore, when calling a store clerk based on a registration cancellation operation, the POS terminal 70 may take into consideration the past shopping history. For example, the POS terminal 70 may be set to call a store clerk when the total number of registration cancellation operations from the current, previous, and previous to previous operations is five or more.

This allows store staff to check, for example, customers who pretend to register products by scanning areas of the product that do not have barcodes, or customers who delete their registration information without returning the product.

Furthermore, the sales data processing system may be configured to notify members at the time of payment if they have performed multiple discount operations with large discount rates.

When notifying the member at the time of settlement, the POS terminal 70 may display a message in a manner that does not reveal to the member that it suspects that the registration operation is a suspected fraudulent operation.
Furthermore, the POS terminal 70 may display a message to the member requesting that a store clerk be called when the member makes a payment if the member suspects that the registration operation is an unauthorized operation.

By setting whether or not a store clerk will check during payment processing based on the operation history of the mobile terminal 20 during the member's registration process, it is possible to focus on members who frequently cancel registration or make operation errors, or members who are likely to be unfamiliar with registering using the mobile terminal 20, and by actively having a store clerk intervene, it is possible to improve service quality, efficiency, and security. In addition, a notification may be issued to prohibit the use of the app.

The intervention of the store clerk based on the operation history of the mobile terminal 20 during the member registration process is not limited to the time of payment processing, but may also occur when entering the store or when registering a product. For members using the service for the first time, having a store clerk intervene when entering the store rather than at payment processing can ensure a smoother product registration process.

Next, an example of a block diagram of the portable terminal 20 of the sales data processing system will be described with reference to FIG.
The sales data processing system of this embodiment has, as a control section, a CPU 21, a ROM 22, a RAM 23, a memory 24, a network I/F 25, an input section I/F 26, a display section I/F 27, and the like.

The CPU 21 constitutes the computer and executes the instructions of a software program. The ROM 22 prestores programs and the like for operation by the CPU 21. The programs and the like may be stored on a portable storage medium such as a CD-ROM and configured to be read by an external device such as a CD-ROM drive.

The RAM 23 is used as a work storage area necessary for storing programs and for the software to operate.
The memory 24 is composed of a hard disk device or the like, and stores information such as product master data.
The network I/F 25 is a circuit for exchanging data with means connected to a network.
The input unit I/F 26 is a circuit for performing input/output with the input unit 260 .
The display unit I/F 27 is a circuit for performing input/output with a display unit 250 such as a touch panel.

Next, an example of a block diagram of the POS terminal 70 of the sales data processing system will be described with reference to FIG.
The sales data processing system of this embodiment has, as a control unit, a CPU 71, a ROM 72, a RAM 73, a memory 74, a network I/F 75, an input unit I/F 76, a display unit I/F 77, a printing unit I/F 78, and the like.

The CPU 71 constitutes the computer and executes the instructions of a software program. The ROM 72 prestores programs and the like for operation by the CPU 71. The programs and the like may be stored on a portable storage medium such as a CD-ROM and read by an external device such as a CD-ROM drive.

The RAM 73 is used as a work storage area necessary for storing programs and for the software to operate.
The memory 74 is composed of a hard disk device or the like, and stores information such as product master data.
The network I/F 75 is a circuit for exchanging data with means connected to a network.
The input unit I/F 76 is a circuit for performing input/output with the input unit 760 .
The display unit I/F 77 is a circuit for performing input/output with a display unit 750 such as a touch panel.
The printing unit I/F 78 is a circuit for performing input/output with a printing unit 770 such as a printer.

As described above, the sales data processing system of this embodiment generates reserved product information for products that could not be registered when the customer uses a mobile terminal owned by the customer to perform product registration processing, and guides the product to the basket as a reserved product, thereby reducing the number of times the customer gives up on purchasing the product and preventing loss of opportunity.
If the product cannot be registered, the customer is notified of this and the product is registered as a reserved product, so that shopping is not delayed by the product that cannot be registered, and shopping can be carried out smoothly.

In addition, when a reserved item is registered, a store clerk is called to prompt the customer to correct the information, and the settlement process is prohibited when there is a reserved item, so that the settlement process cannot be completed with an item that could not be registered included, and erroneous transactions can be prevented.
Then, pending product information is generated for the product that has been put in the shopping cart by pretending to read the product code information, and a store clerk is called at the POS terminal 70, thereby preventing fraud.

Furthermore, the sales data processing system of this embodiment stores and displays the status of the product registration operation performed by the customer using the mobile terminal and the status of the mobile terminal, making it possible to prevent unauthorized operations by customers.
Furthermore, by accumulating and analyzing the operation history of customers when registering products, it is possible to predict fraud while the customer is performing product registration operations, thereby preventing fraudulent operations without increasing the burden on store staff.

In addition, the sales data processing system of this embodiment can prevent customers from forgetting the smartphone used to register a product at the store by notifying them of the status of their mobile device, and can also prevent customers from forgetting to return loaned batteries, etc.

It goes without saying that the above-described embodiments do not limit the invention described in the claims, but are to be treated as examples.
For example, in the sales data processing system of this embodiment, when the registration information includes reserved product information, the POS terminal 70 displays the registration information and the reserved product information together in a list, but it may also be possible to display only the reserved product information in a list. When the store clerk corrects all the reserved product information, the POS terminal 70 may display a list of the product information.

Furthermore, the mobile terminal 20 can be provided with various additional functions.
For example, a member may launch a dedicated app to detect and notify the remaining battery level and signal strength of a smartphone.
If the battery is low, the mobile terminal may notify the member by displaying a message such as "The battery may run out at ...:..." or "The battery may run out due to the reading process of ... point."

Also, when the mobile terminal is switched to offline due to poor radio wave conditions, the mobile terminal may notify the user by displaying a message such as "Only barcode information is displayed. Prices are not displayed."
By obtaining (inputting) only the barcode information and quantity offline, the data can be updated by referencing the product master when the online system is restored; it is also possible to obtain and register product information by connecting to the product master via a communication medium such as a wired LAN at the time of checkout.

The higher-level device 10 may transmit the shopping file information to the product sales system 6 (headquarters system or store controller) as the member's sales record. The product sales system 6 may also centrally manage the member's sales record other than that of the higher-level device 10. In other words, the product sales system 6 may also manage both sales record for purchases made at a store and sales record for purchases made on a mobile device.

The higher-level device 10 may also cooperate with an electronic receipt server (not shown). If the member desires an electronic receipt, the higher-level device 10 may provide the member with an electronic receipt based only on the sales record.
The product sales system and the electronic receipt server may be linked together. In this case, all purchase records can be viewed and downloaded as electronic receipts.

The higher-level device 10 transmits the sales record at a predetermined timing to the product sales system 6. In addition, a member who uses the cloud service of the higher-level device 10 may be able to view and download the purchase records of other companies and stores as electronic receipts.
As a result, it is convenient for the member even if the same sales data processing system is adopted in other stores of the same company, and if the member has experience using the sales data processing system in other companies and other stores, it becomes easier for the member to accept the sales data processing system.

In addition, in cases such as examples (1) and (3) where a sales data processing system is introduced, where the sales results are not sent from the POS terminal to the product sales system 6, but are instead received from the higher-level device 10, it is possible to grasp the sales results, sales flash report, and inventory status of the store.

The mobile terminal 20 may also display the purchase history by using an application installed on it. If the customer wants to create an electronic receipt for tax purposes, the customer may specify the product from the purchase history and instruct the electronic receipt to be created. If the medical deduction or self-medication target flag is managed, the relevant list can be output (in CSV or PDF format) and used for medical deductions, etc.
Other tax deductions can also be collected, and the collected information can be provided to members. If the same type of tax deduction applies to different products, or if the tax deduction conditions are different, both can be compared and output, displayed, printed, and converted into electronic receipts. Members can also select the tax deduction that is most advantageous to them.

Furthermore, in the above embodiment, the mobile terminal 20 may obtain product information by referring to the product master of the higher-level device 10, etc., but it is also possible to download the product master to the mobile terminal 20 so that the product information can be obtained at the mobile terminal 20.
In addition, although the mobile terminal 20 acquires product identification information from the captured image data, the mobile terminal 20 may only acquire the captured image data, and the process of acquiring product identification information from the captured image data and subsequent processes may be performed in a higher-level system.

In other words, each process performed in this embodiment may be performed by any of the higher-level device 10, the mobile terminal 20, the store controller 60, the POS terminal 70, etc., and there is no limit to which device it is performed on, as long as no contradiction occurs.

The camera used to capture images of barcodes and other items attached to products may be a camera built into the smartphone, but a separate camera connected via Bluetooth (registered trademark) or the like may also be used.

10: Upper device 20: Mobile terminal 201: Control means 202: Store identification means 203: Acquisition means 204: Detection means 205: Product registration means 206: Reserved product registration means 207: Display means 208: Notification means 209: Output means 60: Store controller 70: POS terminal 700: Control unit 701: Control means 702: Input means 703: Display means 704: Settlement means 705: Notification means 706: Editing means 707: Prohibition means 750: Display unit 760: Input unit 770: Printing unit

Claims (5)

An acquisition means for acquiring information on a product to be purchased that is registered by a registration device operated by a customer ;
settlement means for settling a transaction based on the product information;
a display means for displaying information about the product when the payment is made by the payment means;
The display means displays the first attention information together with the product information when first attention information indicating that confirmation by a store clerk is required is added to the acquired product information, and displays the second attention information together with the product information when second attention information indicating that editing by a store clerk is added to the acquired product information.
Clearing device. The settlement device according to claim 1 , wherein the display means displays information about a product to which the second warning information is added in priority over information about a product to which the first warning information is added. A confirmation means for confirming the first warning information is provided,
The settlement device according to claim 1 or 2, further comprising a permission means for permitting settlement of a product to which the first warning information is attached when confirmation is made by the confirmation means. An editing means for editing information of the product to which the second warning information is added into information of a product that can be paid for,
A payment device as described in any of claims 1 to 3, further comprising an authorization means for authorizing payment for a product to which the second warning information has been added when the editing means edits information of the product to which the second warning information has been added into information of a product that can be paid for. A program for controlling a settlement device,
A step of acquiring information on a product to be purchased that is registered by a registration device operated by a customer ;
Settlement of a transaction based on the product information;
executing a step of displaying information about the product at the time of checkout in the checkout step;
The display step includes, when first attention calling information indicating that confirmation by a store clerk is required is added to the acquired product information, displaying the first attention calling information together with the product information, and when second attention calling information indicating that editing by a store clerk is required is added to the acquired product information, displaying the second attention calling information together with the product information.
program.

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