KR100250876B1 - A management method for program change history for ecr - Google Patents

Abstract

PURPOSE: A method for treating the modified data of a program of a cash register is provided, to print the details before and after modification immediately and to store the details on memory, thereby improving the accuracy of program. CONSTITUTION: The method comprises the steps of inputting the number of articles, item and modified content to be modified when the program mode is on operation; storing the number of articles, the item, the modified content and the content before modified on the corresponding area of the memory map; and printing the stored content when the program mode is on termination. When the cash register is on adjustment mode, the method comprises further the steps of printing the stored content and deleting it on the memory map when the adjustment mode is terminated.

Description

How to manage program change history for cash registers

The present invention relates to a method of managing a program change history of a cash register, and in particular, in the case of changing the program contents of the cash register, a program change of the cash register which stores the details for a certain period of time and outputs the printed matter when necessary. It is about how to manage history.

In general, a cash register refers to a device used to facilitate information management by processing various data associated with the sale of a product and informing a user of a result. It ranges from point of sales system to comprehensively manage the distribution economy such as research. Hereinafter, in the present specification, the term ECR (Electronic Cash Register), which means an electronic cash register controlled by a microprocessor, is used as a broad concept including a low-end cash register to a POS terminal.

1 is a system block diagram of an electronic cash register to which the method of the present invention is applied. As shown in FIG. 1, an ECR system to which the present invention can be applied includes a key input unit 20 and a key input unit 20 generating key codes for mode designation and money registration. According to the ECR mode, the central processing unit 10 for performing various functions in the designated mode, the ROM 70 having a system operation program embedded therein, the RAM storing various data including deposit and withdrawal details, etc. ), A printer 80 for issuing documents for customer receipts and various processing results under the control of the central processing unit 10, a display 90 for displaying various information related to transactions under the control of the central processing unit 10, and It is provided with a drawer drive unit 50 for withdrawing a cash storage drawer when there is a predetermined key operation. In addition, a bar code reader 30 for inputting bar code information of a product may be added to the high-end model ECR, and reference numeral 40 denotes an interface controller for relaying the bar code reader 30 and the central processing unit 10.

FIG. 2 is a diagram illustrating a key configuration of the key input unit in FIG. 1. As shown in FIG. 2, the key configuration of the key input unit 20 of the general ECR includes a mode switch 21 used to designate a desired operation mode among various operation modes of the ECR, and a desired function among various functions provided in the ECR. It consists of a function key 23 used for execution, a numeric key 25 used for inputting a price or a corresponding numeric code of various items, and an item key 27 used for specifying a desired item.

In the above-described configuration, the operation modes of the general ECR are the modes used to change the program contents of various files or tables used in the ECR, for example, item names, prices, and tax rates (hereinafter referred to as TAX). The program mode (hereinafter referred to as PGM mode), the registration mode for registering and processing various transaction information generated at the point of sale, the inspection mode for checking the transaction information stored in the RAM 60, and the transaction information described above There is a settlement mode and a stop mode that can be performed, and when the settlement mode is performed, the transaction details stored from the last settlement point are deleted from the corresponding area of the RAM 60.

However, if any or all of the contents of the program are changed in the ECR known to date, the changed part is immediately overwritten with the corresponding part of the previous program. That is, the contents of the corresponding part before the change are replaced with the changed contents and are destroyed.

Therefore, in order to know the contents of the program before the change, it was necessary to print the contents of the entire program in advance even if some contents were changed.In order to know the contents of the changed part afterwards, after printing the contents of the entire program after the change, In contrast, there was discomfort to be learned. Moreover, there is a problem that the user cannot check the contents of the program before the change when the user performs the change without printing the entire contents of the program before the change in advance.

The present invention has been made to solve the above-described problems, in particular, when changing the program content of the cash register program history of the cash register to store the details for a certain period of time and to output them as needed, if necessary The purpose is to provide a management method.

Program change history management method of the cash register of the present invention for achieving the above object is in the electronic cash register to be able to change the contents of the predetermined settable items for each transaction item when operating in the program mode, Receiving a number, an item, and a change content of an item for which content change is required during operation; And storing the input item number, the item, the changed content, and the changed content in a predetermined format in a corresponding area on a memory map, and printing the content stored in the storing step at the end of the program mode. It is characterized by.

In the above configuration, it is preferable that the settable item include at least the name, price and tax rate of the item. Furthermore, it is preferable to check the change history again by allowing the contents stored in the storing step to be printed out in the operation of the settlement mode and to be erased on the memory map at the end of the settlement mode.

1 is a system block diagram of an electronic cash register to which the method of the present invention is applied;

2 is a key configuration diagram of a key input unit in FIG. 1;

3 is a flowchart illustrating a program change history management method of the electronic cash register of the present invention;

4 is a configuration diagram of a memory map showing a program change history according to an exemplary embodiment of the present invention;

5 is a diagram illustrating a document output of a program change history according to the present invention.

*** Explanation of symbols for main parts of drawing ***

10: central processing unit, 20: key input unit,

21: mode switch, 23: function key,

25: numeric keys, 27: item keys,

30: barcode reader, 40: interface control unit,

50: drawer drive, 60: ram,

70: rom, 80: printer,

90: display unit

Hereinafter, a program change history management method of a cash register according to a preferred embodiment of the present invention with reference to the accompanying drawings will be described in detail.

3 is a flowchart for explaining a program change history management method of the electronic cash register of the present invention. Hereinafter, the description will be made with reference to the ECR system shown in FIG.

First, in order to change some or all of the program contents of the trading items, the user must operate the mode switch 21 to switch the operation mode of the ECR to the PGM mode. In step S10, the operation mode of the current ECR is Determine if you are in PGM mode. In operation S10, when the operation mode of the ECR is not the PGM mode, the operation of the corresponding mode is performed. When the operation mode is the PGM mode, the operation proceeds to step S12 to clear the counter COUNT. The counter COUNT value in step S12 indicates the total number of contents changes.

In a next step S14, it is determined which one of the item keys 27 has been input. If a key other than the item key 27, for example, the function key 23 or the numeric key 25 is input in step S27, the corresponding function or error processing is performed. If any item key 27 is input in step S14, it is deemed necessary to manage certain settable items, for example, a change history, in steps S16, S18, and S20. Determines whether there has been a key operation for changing the TAX, price and name (hereinafter referred to as " important items ").

Specifically, in step S16, a key operation (which may be one or more key operations) for changing the contents related to TAX. In the present invention, the F1 key in the function key 23 is referred to as a TAX change key. To proceed with the explanation). On the other hand, in the RAM 60, the contents of the "important items" set for each item key 27 are stored in order with a predetermined number of bytes, respectively.

Therefore, when the F1 key code is input in step S16, the CPU 10 reads the TAX information of the corresponding item, that is, the address of the memory map in which the tax rate is stored, and reads the current TAX information. Next, in step S22, new TAX information is received from the user and compared with the current TAX information. That is, it is determined whether the TAX information has been changed. If the TAX information is changed in step S22, the flow advances to step S24 to store the corresponding item number (code), the type of change item (KIND), the TAX before the change and the TAX after the change, respectively. In the above description, the type of change item refers to the type of item to be changed. For example, a change in TAX can be classified into KIND = 1, a change in price KIND = 2, and a change in name KIND = 3. have.

4 is a configuration diagram of a memory map illustrating a program change history according to the present invention. As shown in FIG. 4, assuming that the number of data bits for one address of the RAM 60 is 1 byte, the item number is stored in the upper 6 bits and the type of the change item is stored in the remaining 2 bits. There is a number. In this way, a total of 64 (= 2 ⁶ ) items can be programmed, and up to four types of changed items (KIND) can be distinguished (in this embodiment, the number of KINDs is three).

On the other hand, before and after changes are sequentially stored in the following addresses of the item number (XXXΦH), (XXX3H), and (XXXAH) where the item number is stored, and the number of bytes allocated to them is appropriate according to the type of item. It is fixed in size. In the example of FIG. 4, 1 byte is assigned to each of the before and after the change in the case of TAX, and 3 bytes each to the before and after the change in the case of the price, and 2 bytes each to the change before and after the change in the case of the name (In the real case, more bytes would have to be allocated for the name).

Referring to FIG. 3 again, in step S34, the value of the counter COUNT is increased by one. In step S34, the central processing unit 10 changes the address area where the change history of the "important items" is stored. Is given to help determine this. Meanwhile, when the price is changed, the details are stored sequentially through steps S14, S18, S26, S26, and S34, and when the name is changed, steps S14. , (S20), (S30), (S32), (S34) and the details are stored sequentially, the detailed method is as described in the TAX section. The price changing key and the name changing key in steps S18 and S20 may correspond to the F2 key and the F3 key among the function keys 23. After changing all the desired contents in this way, when the user operates the mode switch 21 to switch the PGM mode to another operation mode, for example, the registration mode, the CPU checks it in step S36, and then the step Proceeding to S38, the change history of the "important items" is printed.

Fig. 5 is an example of document output of the change history of " important items "

Meanwhile, even when the user switches the operation mode of the ECR to the "registration mode", as described above, when the ECR performs the settlement mode while the change history of the "important items" stored in the RAM 60 is stored as it is. It is also possible to have it printed out as a document. Of course, in this case, the RAM 60 must have sufficient memory capacity.

The program change history management method of the cash register of the present invention is not limited to the above-described embodiment and can be modified in various ways within the scope of the technical idea of the present invention.

According to the method for managing the program change history of the cash register according to the present invention as described above, the contents before and after the change of important items at the time of the program are immediately printed at the completion of the program, and the details are stored in the memory. By making it reportable, you can improve the accuracy of the program and further improve the user's understanding of the change history.

Claims (3)

In the electronic cash register that can change the contents of the predetermined settable items for each trading item when operating in the program mode, Receiving a number, an item, and a change content of an item for which content change is required during the operation of the program mode; Storing the input item number, item, changed content, and changed content in a predetermined format in a corresponding area on a memory map; and And printing the contents stored in the storing step at the end of the operation of the program mode. The cash register of claim 1, wherein the cash register is operable in a settlement mode. The method further comprises the step of printing out the contents stored in the storage step in the operation of the settlement mode and erasing on the memory map with the termination of the settlement mode. The method according to claim 1 or 2, wherein the settable item includes at least a name, a price, and a tax rate of the item.

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