KR100263343B1 - Key function exchange method of ecr - Google Patents

Abstract

PURPOSE: A method for changing function of a key of an electronic cash register is provided to return the original function of the key after changing each key into the function, which a user wants, and using it. CONSTITUTION: In the method for changing function of the key of the electronic cash register, a few stages are included. If the key is not the PGM mode in the stage of S100, the function of other mode is carried out in the stage of S110. If the key is the PGM mode in the stage of S100, it is judged if the return key is input in the stage of S120 or not. If the return key is not input, the function of other PGM mode is carried out in the stage of S130. If the return key is input, values of the key code used in the stage of S140 are changed into values of the key code, which the original key stored on a ROM in advance has.

Description

How to change the key function of the electronic cash register

The present invention relates to a method of changing a key function of an electronic cash register which can change a function of each key of a key input unit to a user-specified function, and in particular, changes each key to a function desired by a user and returns to the original function of a key. The present invention relates to a method of changing a key function of an electronic cash register which returns a function of a key by a simple operation.

In general, an electronic cash register refers to a device used to facilitate information management by processing various data accompanying product sales and informing a user of the results. And point of sales (POS) systems that can comprehensively manage the distribution economy, such as inventory and inventory 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 a general electronic cash register. 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, and a display unit 90 for displaying various information related to transactions under the control of the central processing unit 10. And a drawer drive unit 50 for withdrawing the 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.

The ECR has various keys for controlling the functions of the ECR. As the ECR develops, the functions become very complicated, and accordingly, the number of the function keys increases, making them difficult to use unless they are sufficiently mastered.

Therefore, the upper model of ECR has a key function change function so that users can change the function of the key according to the user's convenience. However, when the user changes the key function and then tries to return the key function to the original function, there is no function that can be changed collectively. Therefore, the user must change the key function in reverse for each changed key. There was this.

The present invention has been made to solve the above-described problem, the key function of the electronic cash register to return the function of the key by a simple operation when the user wants to return to the original function of the key while changing the key to the desired function of the user The purpose is to provide a change method.

Method of changing the key function of the electronic cash register of the present invention for achieving the above object is a method of changing the key function of the electronic cash register that can change the function of each key of the key input unit to a function designated by the user rather than the original function A method comprising: storing keycode values corresponding to an original function on a ROM in advance; When the user changes the function of each key and inputs a specific key in the program mode to return to the original key function, the key code values currently in use are collectively assigned to the key code values corresponding to the original functions stored on the ROM. Characterized in that it comprises a step of changing to.

1 is a system block diagram of a general electronic cash register,

2 is a key block diagram of a key input unit of an electronic cash register to which the present invention is applied;

3 is a flowchart illustrating a method of changing a key function of an electronic cash register of the present invention.

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

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

21: mode switch, 23: numeric keys,

25: item key, 27: function key,

27a: return key, 29: character key,

30: barcode reader, 40: interface control unit,

50: drawer drive, 60: ram,

70: rom, 80: printer,

90: display unit

Hereinafter, a method of changing a key function of an electronic cash register according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 is a key configuration diagram of an electronic cash register key input unit to which the present invention is applied. As shown in FIG. 2, the key configuration of the key input unit 20 of the ECR includes a mode switch 21 used to designate a desired operation mode among various operation modes of the ECR, a price of various items, a corresponding numeric code, and the like. Numeric keys 23 used for input, item keys 25 used for specifying a desired item, function keys 27 used for executing a desired function among various functions provided in the ECR, and used for inputting characters It consists of a letter key 29.

In the embodiment of the present invention, the return key 27a is defined as a key used when the user wants to return to the original key function after changing the key function.

In the above-described configuration, the general operation modes of the ECR include a program mode (hereinafter, referred to as a PGM mode), which is a mode used to change the program contents of various files or tables used in the ECR, and various operations occurring at the point of sale. There is a registration mode for registering transaction information, a check mode for checking transaction information stored in the RAM 60, a settlement mode for calculating the above transaction information, and a stop mode.

Here, when the key function of the electronic cash register is described, first, each key is generated when a corresponding key code is generated for each key so that the CPU 10 can recognize that the corresponding key is pressed. .

That is, all keys on the key input unit 20 of the ECR are assigned respective key codes, and when a specific key is pressed, a corresponding key code is generated to perform a function defined in the pressed key. Therefore, in order to change the key function, the user must delete the key code value of the original key and set a new key code value in the PGM mode.

In this case, in order to return to the original key function, the key function change operation must be performed for each changed key by deleting the same key code value as described above and setting the original key code value.

However, in the method of changing the key function of the electronic cash register of the present invention, the original key code value for each key is previously stored on the ROM 70, and the user changes the key function through the key function change operation and then uses the original key. When returning to the function, pressing the return key 27a in the PGM mode causes all changed keycode values to be changed to the original keycode.

3 is a flowchart illustrating a method of changing a key function of an electronic cash register of the present invention. As shown in FIG. 3, in order to change the key function and then return to the original key function, the user must first change it in the PGM mode. In the PGM mode, it is determined whether the return key 27a is input in step S120. If the return key 27a is not inputted, the other key performs a function on the PGM mode, and if the return key 27a is inputted, the original key previously stored in the ROM 70 in the step S140 is used. Change all keycode values you have. Therefore, the changed keys have the original keycode value again, so that the original function can be performed again.

The method of changing the key function of the electronic 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 changing the key function of the electronic cash register of the present invention as described above, the key functions that have been changed at one time through simple key operation are eliminated without the inconvenience of having to change the key function for each one of the keys. It is possible to return to the key function to increase convenience.

Claims (1)

In the method of changing the key function of the electronic cash register which can change the function of each key of the key input unit to a function designated by the user instead of the original function, Storing keycode values corresponding to the original functions in advance on the ROM; And When the user changes the function of each key and inputs a specific key in the program mode to return to the original key function, the key code values currently in use are converted into the key code values corresponding to the original functions stored in the ROM. Method for changing the key function of the electronic cash register, characterized in that it comprises a step of changing collectively.

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