JPS5835300B2 - electronic cash register - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic cash register (hereinafter abbreviated as ECR), and in particular collects and stores data for each category of products registered as single items, and determines the code and unit price for each single item. In ECH, which has a Price Lookup (hereinafter referred to as PLU) registration function that allows single item registration by registering a The present invention relates to an ECR in which the maximum number of storage areas for storing data in a similar manner to department registration data for each FLU code can be appropriately varied and allocated within the memory storage tolerance range.

In general, instead of traditional mechanical cash registers, E
CR is put into practical use.

In this type of ECR, in addition to printing and totaling the data registered for single items, by classifying various single items by department and inputting the department data in accordance with the registration of individual items, the sales points for each department ( The number of times) and the cumulative amount are stored in memory, and the data is collected after the store closes or on a long-term basis and used as sales materials.

In addition, since some stores have fixed products that sell well, an ECR has been proposed in which the product code and unit price for each best-selling part can be set and stored in memory, and the unit price can be registered simply by entering the PLU code. There is.

In ECR, where single product registration is performed simply by registering the PLU code, conventionally, the department code to which the product belongs (i.e., the link destination corresponding to the department code) is determined for each PLU code, and the The sales number of the department to which the product corresponding to the PLU code belongs is added, and the unit price is added to the cumulative amount of the corresponding department and stored.

Also, based on the PLU code registration, the registered PL
The number of sales items is set and stored for each U code.

However, if the data registered by the PLU code is also stored in association with the department data, there is a problem that the cumulative amount of the particularly necessary PLU code cannot be collected and stored.

The cumulative sales amount for each PLU code can also be calculated by multiplying the number of sales for each PLU code by its unit price, but the data based on PLU registration (i.e., the number of sales for each PLU code) is relatively short. Since it is updated every period, it was not possible to know the cumulative amount by PLU code over a long period of time.

In addition, if you want to know the total amount for each required PLU code, you have to calculate the number of times and the unit price, and if the ECR does not include such a calculation function, the operator must manually calculate it by mental calculation etc. There was an unavoidable annoyance.

Therefore, by increasing the dedicated memory or by using the free storage area of the memory, we collect registration data corresponding to some PLU codes that particularly require individual item management in the same manner as the department registration data. It is possible to memorize it.

However, adding dedicated memory is expensive.

In addition, using free storage space in memory has a limited storage capacity, so only a small amount of data can be stored.
It may not be suitable for the user's job.

Therefore, within the storage capacity of the memory, the storage area that can store various types of data is adapted to any user's specifications, and the desired type of data can be stored within the desired capacity with a relatively small storage capacity. Therefore, it is desirable to optimally control the allocation of memory storage areas.

Therefore, the present invention has been made to satisfy the above-mentioned needs, and is capable of storing a desired type of data within a desired tolerance range with a relatively small storage capacity, and is compatible with any user's specifications. It is to provide ECR.

To summarize this invention, the storage area of the memory is divided into a storage area for storing department registration data and a PL so that the desired storage tolerance is within the memory tolerance based on the setting length.
The system is divided into a storage area for storing unit price data corresponding to the U code and the number of registrations thereof, and a storage area for storing data for each <PLU code based on PLU registration in the same manner as department data.

FIG. 1 is a block diagram of one embodiment of the present invention.

In the figure, the ECR of this embodiment includes a CPU 10 such as a microprocessor having an arithmetic processing function, a keyboard (described in detail in FIG. 2 below) 20, and data and calculation results registered with the keyboard 20. A display device 11 for displaying data, a printer 12 for printing data registered with a keyboard 20 and calculation results, collecting and printing data as necessary, and storing processing data of the present invention and setting desired data. It consists of a memory 30 (described in detail in FIG. 3 below) for storage.

FIG. 2 is an illustrative diagram of a specific operation section of the keyboard 20. As shown in FIG.

The keyboard 20 has numeric keys 21 including keys for numbers 0, 1 to 9, units of 100, decimal point key, etc., and department codes of single products "01" to "08" corresponding to the unit price input using the numeric keys 21. Department keys 221-2 to input “
28, and the numerical information entered by operating the numerical keys 21 is P.
PLU key 23 indicating that it is an LU code, and EC
R(71) includes a mode selection key switch 24, which is an example of mode selection means for selecting an operation mode.

This mode selection key switch 24 is configured to switch the key switch to S.
By switching to the mode position, the memory allocation mode, which is a feature of this invention, is selected and set, and by switching to the P mode position, the setting mode of the department code linked to the PLU code and the setting mode of unit price information for each FLU code are selected. By setting and switching to the R mode position, normal registration modes including department registration mode and PLU registration mode are selected and set.

FIG. 3 is a diagram schematically showing the storage area of the memory 30.

In the figure, a memory 30 is a memory in which desired data can be written and read (e.g., random access memory; RAM).
) is used.

This memory 30 includes an allocatable storage area 31 which is made up of a plurality of predetermined addresses and which are appropriately allocated to each of a department data storage area 311, a PLU data storage area 312, and a free storage area 313, and the numerical key 2.
A numeric register (abbreviated as NBUF in the figure) 32 temporarily stores numeric information input by operating 1, and a PLU register (PLU register) 32 temporarily stores a specified PLU code.
C) 33, a department code register (DPC) 34 that temporarily stores the registered department code, a flag (Fn) 351 that stores the fact that numerical information has been input, and a flag (Fn) 351 that stores the fact that the department key has been pressed. A flag (Fd) 352, an updater register (AMT) 35 that temporarily stores the read cumulative amount for each department code, and a storage area that stores department registration data for each department code among the plurality of addresses in the storage area 31. Maximum number of addresses (i.e. maximum number of department codes)
A register (DPN) 37 for setting and storing the
Set and store the number of department codes and the maximum number of addresses to which PLU codes can be linked in the same data format as department data (i.e., the sum of the number of addresses in the department data storage area and the number of addresses in the free storage area) among multiple addresses in 1. register (ODP
N) 33, and a register (PLUN) 39 for setting and storing the maximum number of addresses (maximum number of PLU codes) of PLU codes that can be stored and set the unit price and the number of times for each PLU code among the plurality of addresses in the storage area 31.

The storage area 31 also includes an area a for storing a linked department code (LDP) with a predetermined number of bits at an address used as a PLU data storage area 312, and an area a for storing a linked department code (LDP) at an address used as a department data storage area 311 and a free storage area 313. If the area is stored as a departmental counter (DCN) with a predetermined number of bits and as a PLU code-specific counter (PCN) with a predetermined number of bits at an address used as the PLU data storage area 312, storage areas 311 and 313 are stored. department (or PLU
) An area C is stored as a code-specific cumulative amount register (DTT) and is divided into an area C for storing the unit price (UP) for each PLU code using a predetermined number of bits at an address used as the storage area 312.

Next, with reference to FIGS. 1 to 4, the operation of this embodiment will be explained by giving operation examples for each mode.

Memory Allocation Mode First, a case will be described in which a plurality of addresses in the storage area 31 are allocated to each of the department data storage area 311, PLU data storage area 312, and free storage area 313.

For example, the number of addresses of the storage area 31 is m, the department data storage area 311 is set to address 8 corresponding to the number 8 of each department key 22, and the PLU data storage area 312 is set to number 10 (that is, the PLU code is "011~rlOJ"). The following description assumes the case where it is assigned to

First, the operator presses the mode selection key switch 24.
After selecting and setting the PLU code to S mode, operate the numeric key 21 and enter the number "10" to set the PLU code number to 1.
0, then press the department key 228 representing department 8 to set the department code number 10, and then press the department key 228 representing department 8 to set and input the department code number 8.

In response to the operation of the numeric key 21, the CPUI O presses any of the numeric keys 21, not the PLU key 23 or the department key 22, based on the fact that the first digit key was pressed. determine something.

Then, it is determined whether the flag (Fn) 351 is logic "1" (that is, set), but if it is the first digit input by operating the numerical keys, the flag 351 is logic "0". After clearing the contents of the numeral register 32, shift the contents of the numeral register 32 to the left by one digit, move the numeric value "1" that has just been manually entered to the lowest digit of the numeral register 32, and set the flag 351 to the logic "1". After writing "1", the process returns to the above-mentioned step of waiting for key human power.

Next, when the numeric key 21 is operated and the next digit numeric value "0" is input, it is determined that the input is from a numeric key, and then,
After determining that the flag 37 is logical "1" and shifting the contents of the numeral register 32 to the left by one digit, the numerical value "0" that was entered by the key just now is moved to the lowest digit of the numeral register 32, and the flag is Logic "1" is written in 351 and the process returns to the key manual waiting step described above.

In this way, the numeric key 21 is stored in the numeric register 32.
The number of PLU codes input by operating the register 32 (however, it is not known until later that the numerical information stored in the numeric register 32 is the number of PLU codes) is stored in the register 32.
Stored in

Next, the operator presses department key 2 with department code "08".
28, the CPU 10 determines that it is not the PLU key 23 but one of the department keys, and stores the key code of department code "08" in the department register 34.
Let Hess door.

Next, CPU10 determines that the flag 351 is logical "1", determines that the flag 352 is logical rOJ, and determines whether the mode selection key switch 24 is selected to P mode.

At this time, since the memory 30 allocation mode is not in P mode, the CPU 10 determines that it is not in P mode but in S mode and proceeds to the next step.

Next, the CPU 10 adds the contents of the register 32 (the number of PLU codes) and the contents of the register 34 (that is, the number of department codes), and determines whether the added value is less than or equal to the maximum number of addresses m in the storage area 31. , the maximum number of addresses (m) in which the sum of the number of PLU codes and the number of department codes to be set is within the allowable range.
Determine whether the following is true.

At this time, if the sum of the number of PLU codes and the number of department codes is greater than m, allocation is not possible and an error is displayed.

On the other hand, if the sum of both code numbers is less than or equal to the door, the CPU 10 transfers the contents of the department register 34, that is, the number of usable department codes 8, to the register 37 and stores the setting, and the contents of the register 32 are transferred from the maximum address number door. value (i.e., the number of available PLU codes) and store it in the department data storage area 311.
The sum of the number of addresses that can be used as the free storage area 313 is calculated, and the sum of the number of addresses (m-10) is transferred to the register 38 for setting and storage.

Further, the CPU 10 transfers the number of usable PLU codes stored in the register 32 to the register 39 to store the setting, and then writes logic "O" to the flag 351 (i.e., resets it) and proceeds to the above-mentioned key manual power waiting step. return.

In this way, a plurality of addresses in the storage area 31 of the memory 30 are allocated to the department data storage area 311 at address 8, the PLU data storage area 312 at address 10, and the empty storage area at address (door-18). do.

In addition, when assigning to other numbers, set the mode selection key switch 24 to S mode, operate the numeric keys 21 to input the number of usable PLU codes, and then press the department key 22.
By operating , and inputting the number of usable department codes, each storage area 311 to 313 can be appropriately allocated within the range of the maximum address number.

Therefore, the number of department codes, the number of PLU codes, and the number of addresses in which data for each PLU code that is particularly necessary based on the registration of PLU codes is stored in the same manner as the department data.
There is an advantage that the settings can be changed as appropriate within the allowable range of the memory 30 according to the user's use.

This has the advantage of being able to satisfy a wide variety of specifications without increasing the number of ECR models, and allowing for mass production.

PLU code link destination code setting mode When setting a department code to be linked for each PLU code, the operator sets the mode selection key switch 24 to P mode, presses one of the department keys 221 to 228,
Operate the numeric keys 21 to input the linked PLU code and department code corresponding to the department key pressed first, and
This is done by pressing the U key 23.

For example, the department code corresponding to the department key 221 is “01
” and linked to department code “01”
If the code is "01", the operator presses the department key 221, operates the numerical keys 21 to input the four-digit code JO101j, and then presses the PLU key 23.

In response to this pressing of the department key 221, the CPU 10 determines that the operated key is not the PLU key 23 but any department key (excluding department keys that cannot be used), and responds to the department key 221. The key code is stored in the register 34, and the logic state of the flag 351 is "1".
It is determined whether or not, and if the flag 351 is logical rOJ,
After determining that the mode selection key switch 24 is in the P mode and determining that the department key code stored in the register 34 is less than or equal to the maximum usable department code number stored in the register 37, the flag The logic "1" is stored in 352 and the process returns to the step of waiting for key human power.

Next, in response to operating the numeric key 21 and inputting the PLU code and the 4-digit code "0101" representing department two lower, the CPU 10 determines that the operated key is the PLU key 23.
After determining that it is the numeric key 21 and not any of the department keys 221 to 228, the input numeric information is input to the register 3 in the same manner as the numeric information input operation described above.
Store it in 2.

Furthermore, in response to the PLU key 23 being pressed, the C
The PU 10 determines that the operated key is the PLU key 23, the flag 351 is logic "1", the mode is not S mode but P mode, and the flag 352 is logic "1", and then outputs the PLU code. Performs the setting operation of the linked department code.

That is, the CPU 10 determines that the numerical information stored in the register 32 is 4 digits, stores the upper two digit numerical information stored in the register 32 in the register 33, and stores the numerical information stored in the register 32. The numerical information of the lower two digits is stored in the register 34, and the numerical information of the lower two digits is stored in the register 33.
It is determined that the contents of and 34 are not zero.

Roughly, the CPU 10 stores the PLU code to be set (01) stored in the register 33 and the maximum number of usable PLU codes (10) stored in the register 39.
It is determined that the number of PLU codes to be set is less than or equal to the maximum number.

Next, the contents of the register 34 and the contents of the register 38 are compared, and it is determined that the department code to be set stored in the register 34 is less than or equal to the maximum number of usable department codes stored in the register 37. When it is determined, the department code to be set stored in the register 34 is set as the linked department code corresponding to the PLU code specified by the contents of the register 33 in the linked storage bit area a at the corresponding address in the PLU data storage area 312. Thereafter, the setting operation is completed by storing the logic "O" in the flag 352 and storing the logic rOJ in the flag 351.

Similarly, by inputting the PLU code and the department code for each department key, the setting operation of the linked department code for each PLU code is achieved.

Unit price setting mode for each PLU code When setting the unit price for each PLU code, the operator sets the mode selection key switch 24 to P mode, which corresponds to the PLU code consisting of a 2-digit number and the corresponding PLU code consisting of a 6-digit number. This is done by inputting the unit price by operating the numeric keys 21 and pressing the PLU key 23.

For example, if the PLU code is "01" and the PLU
If the unit price of the code is 100 yen, the operator operates the numeric key 21 to enter the PLU code "01", and then enters the unit price (100 yen) with the six-digit number "0OO100j". Afterwards, the PLU key 23 is pressed.

In response to the input of the PLU code and the eight-digit number representing the unit price, the CPU 10 loads the eight-digit number into the number register 32 in the same manner as the input operation of numerical information in the memory allocation mode described above.

Thereafter, in response to the PLU key 23 being pressed, the C
The PU 10 determines that the flag 351 is logic "1" and that the mode selected by the mode selection key switch 24 is not the S mode but the P mode, and then the flag 352 is logic "0". After determining that the numeral information stored in the numeral register 32 is 8 digits, the unit price setting operation for each code is performed.

That is, the CPU 10 stores the upper two digits of the numerical information stored in the numeric register 32 to the register 33, determines whether the content of the register 33 is O, and if not, stores it in the register 33. Compare the PLU code you are currently trying to set with the maximum usable PLU code stored in register 39, and if the PLU code (Ol) to be set is less than or equal to the maximum usable number 10, press R. The numerical information of the lower 6 digits (i.e. unit price) stored in the register 32 is transferred to the register 33.
is written and stored in the unit price storage bit area C of the PLU data storage area 312 corresponding to the FLU code "01" specified by the contents of.

Thereafter, logic "0" is written in the flag 351, and the process returns to the above-mentioned key manual power waiting step.

Similarly, PLU code "01"..."10"
By sequentially setting and inputting the unit price corresponding to each PLU code, the unit price for each FLU code is written and set for each address in the PLU data storage area 312.

As mentioned above, memory storage capacity allocation and PLU
After completing the setting of the unit price by code and the linked department code by PLU code, it becomes possible to register the purchase data of the products purchased by the customer using the ECR.

Therefore, below are the registration modes by registering department codes,
The registration mode when registering a single item by registering a PLU code will be explained.

Department registration mode In the case of department registration mode in which single items are registered by operating the numeric keys 21 and pressing the department key, the operator selects R mode with the mode selection key switch 24,
The user operates the numerical keys 21 to input the unit price of the product to be registered, and operates the department key 22 to input the department code of the product.

C according to the input of the unit price based on the operation of this numerical key 21.
PUl0 stores the unit price input by operating the numerical key 21 in the number register 3 in the same way as the numerical information input operation described above.
After the 1 department key 21 is pressed, the key code of the department key pressed among the department keys 221 to 228 (for example, 221 representing department 1) is stored in the register 34, and the flag 351 is set to logic ``1''. 1", and determines that the flag 352 is logical rOJ,
After determining that the mode selected by the mode selection key switch 24 is not the P mode but the R mode, the data registered individually is collected and stored in the department data storage area 311.

That is, the CPU 10 determines that the input department code stored in the register 34 is less than or equal to the maximum number of usable department codes stored in the register 37, and stores it in registers 3 and 2. The unit price is transferred to the register 36 and stored, the counter of the department code (01) specified by the contents of the register 34 is incremented by 1, and the cumulative amount of the department code (01) specified by the contents of the register 34 is calculated. After adding the currently registered unit price stored in the register 36 to and updating and storing it, a logic "0" is written to the flag 351 to complete the series of operations.

By repeating the same operation thereafter, the single item registration operation by department registration is achieved.

Registration mode using PLU code When registering a single item by registering a PLU code,
The operator selects the R mode with the mode selection key switch 24, operates the numerical keys 21 to input the PLU code, and presses the PLU key 23.

In response to inputting a PLU code by operating this numerical key 21, the CPU 10 stores the PLU code (for example, rolJ) in the register 32 in the same manner as the numerical information input operation described above, and then when the FLU key is pressed, It is determined that the flag 351 is logic "1" and that the mode is not S mode but R mode, and the flag 352 is
is logic “O” and the numerical information stored in the register 32 is a two-digit numerical value, the PLU
Performs registration mode operation.

That is, the CPU 10 stores the PLU code (Of) stored in the register 32 and which should be registered in the register 39.
After determining that the number of usable PLU codes stored in the register 32 is less than or equal to the maximum number of usable PLU codes and determining that the contents of the register 32 are not zero, the contents of the register 32 (PLU code roll) are transferred to the register 33. Store.

Next, the CPU 10 reads the linked department code corresponding to the PLU code stored in the register 33 and stores it in the register 34, and determines that the contents of the register 34 are greater than zero and less than or equal to the contents of the register 38, The unit price corresponding to the PLU code stored in the register 33 is read out and stored in the register 36, and the value "1" is set in the contents of the number storage bit area at the address corresponding to the PLU code stored in the register 33. and increments the number of registrations of the PLU code, adds 1 to the number of registrations for each department code in the number storage bit area of the address corresponding to the department code stored in the register 34, and updates and stores it; Cumulative amount storage bit area C of the number table corresponding to the department code stored in the register 34
After adding the contents of the register 36 (that is, the unit price registered in the PLU) to the cumulative amount of and updating and storing it, the flag 351
A logic "1" is written and stored in the PLU register, and a series of operations for PLU registration is completed.

Single item registration based on other PLU codes is also achieved in the same manner as the above-described operation.

As described above, according to the present invention, a plurality of addresses in a memory are variably divided into an area for storing data by department code, an area for storing data by PLU code, and a free storage area within the maximum allowable range. An EC that can be configured, uses memory effectively, and meets all user specifications.
R is obtained.

[Brief explanation of drawings]

FIG. 1 is a block diagram of one embodiment of the present invention. FIG. 2 is an illustrative diagram showing an example of a keyboard. FIG. 3 is a diagram schematically showing the storage area of the memory. FIG. 4 is a flowchart for explaining the operation of one embodiment of the present invention. In the figure, 10 is a CPU, 11 is a display, 12 is a printer, 20 is a keyboard, 21 is a numerical key, 221 to 2
28 is a department key, 231 is a PLU registration key, 24 is a mode selection key switch, 30 is a memory, 311 is a department data storage area, 312 is a PLU data storage area, 313 is an empty storage area, 32-34, 37-39 are register, 3
51°352 indicates a flag.

Claims (1)

[Scope of Claims] 1. An electronic cash register capable of department registration processing and price lookup registration processing, comprising: a keyboard including a plurality of keys; a memory having a certain storage tolerance; and a certain storage tolerance of the memory. mode setting means for setting a mode for memory allocation within the memory allocation mode; allocation information storage means for storing information necessary for the memory allocation input by key operations on the keyboard during the memory allocation mode; and the sweetfish allocation information. Based on the storage contents of the storage means, the memory is divided into a first area for the department registration process and a second area for the price lookup process.
and a third area, the third area serving as an area for registering at least the total sales amount of a predetermined product among the products subjected to the price lookup registration process. Assigned electronic cash register.