KR910001245B1 - Cash register - Google Patents

Abstract

The cash register displays the error state as well as providing the alarm when it is in fault state. It also indicates the error release key. The register analyzes the input key by scanning the key. If it is a clear key, the clear function according to the present error state is performed. If it is not the clear key, the register checks the present state. When the present state is in the fault one, the process is feedbacked to the first procedure and the alarm signal is provided. If the error is caused by wrong operation of the user, the next right step is shown on an error displayer (100).

Description

Cash register that can provide error information

1 is a system diagram for carrying out the present invention.

2 is a flow chart of the present invention.

3 is a key arrangement diagram.

* Explanation of symbols for main parts of the drawings

10: power supply unit 20: CPU

30: Roman 40: Ram

50: key input unit 60: display unit

70: printer 80: buzzer

90: drawer 100: error display

The present invention relates to a method of operating a cash register, and in particular, an error providing method of a cash register capable of classifying an error situation together with an alarm when an error occurs during operation of the cash register and displaying a key for removing the error. It is about.

Generally, the electronic cash register that manages the sales results by including the registration key such as the numeric key and the item key, the termination key having the payment function, and the person in charge of the key, the overflow of the key operation or calculation result in the order not allowed by the system. In case of overflow, only continuous buzzer sounds or simple error signs are displayed on the display unit.

Therefore, in the conventional cash register system, an error situation caused by a key operation error and an overflow of a calculation result is represented only by a buzzer sound or an error sign. Therefore, it is difficult to determine the cause of the error situation. There was a problem that it takes too much time.

Accordingly, an object of the present invention is to provide a method for efficiently using a cash register by alerting and displaying an error situation occurring during the operation of a cash register and displaying a subsequent input key for error elimination from a function key in a previous state.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a system diagram for carrying out the present invention, which includes a power supply unit 10 having a backup power supply for protecting the stored data during system power supply and power failure, a CPU 20 for controlling the system, and a program. A ROM 30, a RAM 40 for storing data such as sales transaction volume, a key input unit 50 composed of various keys, a display unit 60 indicating a transaction state, and a printer 70 for printing a transaction state. And a buzzer (80) for alarming an error condition, a drawer (90) for storing a transaction amount and operating at the end of a transaction, and an error display unit (100) for displaying a key for removing an error currently occurring according to an error situation. Figure 2 is a flow chart of the present invention to kiss the first step of interpreting the corresponding key input, and after performing the first step to check whether the clear key is cleared according to the presence or absence of the current error state at the time of the clear key Function And a second step of returning to the first step, and a third step of returning to the first step by ignoring the input key when the current state is an error state when the clear state is not a clear key in the second step, and In the third process, if the current key input causes an error condition when it is not an error state, and performs a function of the corresponding key at the time of a normal key input, and generates an alarm sound when the error occurs in the fourth process. After the error code is displayed, the previous state function key is displayed as a key for removing the error thereafter, and the fifth process returns to the first process. FIG. 3 is a key arrangement diagram of the cash register. (Table 1) is a function key data table, which shows keys to be input later to remove an error code.

Based on the above-mentioned configuration, the present invention will be described in detail with reference to the first, second, third and fourth degrees. The CPU 20 scans the key input unit 20 to inspect the key input and analyzes the function of the corresponding key when key data is input.

The key input unit 20 is composed of a mode key 51 and a keyboard 52, the function of which is as follows.

First, the mode key 51 will be described. The preset key performs a function of presetting the price of the item, and can set the price based on the discount period and the discount rate at the time of sale, and also set each factor index when using the cash register.

It is used to stop receiving the key input of the cash register for a certain period of time. The registration key date and time stores the data currently being traded in the RAM 40, and this situation is generally in a state where a transaction is being executed in a store.

This function performs a function to print out the transaction data on the registered RAM 40 to be checked without clearing it. The normal key clears the transaction data on the registered RAM 40 and clears the memory for the next state. Perform a function to empty it.

Second, various keys of the keyboard 52 will be described.

Various numeric keys can enter the unset amount of goods and various numeric data (year, month, date, etc.), and preset the amount of the goods so as to display the transaction value of the product without using the numeric keys and discount And a percent key indicating a premium rate, a return key for processing the data when returning a sold product, a subtotal key indicating a middle sum, a payment key for opening the drawer 90, and a salesman. (CLARK KEY: CLK KEY) key, and the error status due to the cancellation of the numerical key dimension and the key operation error or the overflow of the calculation result which is out of the key input order provided by the cash register. It consists of a clear key to remove.

The CPU 20 stores the transaction data in the RAM 40 by the program of the ROM 30 according to the input of the key input unit 50 and displays the transaction contents on the display unit 60 or prints it through the printer 70. Output At this time, when a key operation error or overflow occurs during calculation, the buzzer 80 is driven to alarm and the corresponding error code causing the error condition is displayed on the display unit 60 as shown in Table 1 below. The corresponding display element of the error display unit 100 in which a key which can be subsequently input from the function key is stored in advance is driven. In order to inform the user of an incorrectly used key manipulation sequence, the function table needs to be stored in advance. FIG. 4 is an embodiment of the function table as shown in Table 1 below.

TABLE 1

The flow of the present invention will be described with reference to FIG. After the initial cash register system is driven (A), the system is initialized in step (B), and in step (B), the CPU 20 kisses the key input unit 50 to select keys of the keyboard 52 under the mode key 51. Accept.

The valid key refers to a case in which a chatter phenomenon does not occur and a mode key is properly determined. Otherwise, the valid key ignores the key input and returns to step (B).

In step (B), the key is interpreted in the valid key pause (C) step, and in the step (D), the clear key pause is moved to step (E) to check whether the status is an error condition.

If the current status is an error status, turn off the running rich man 80, end the error status (K), and proceed to step (K) to remove the error status such as an error in key operation or an overflow in calculation and the error in step (F). If not, proceed to step (K) to perform a clear function such as canceling the numeric keys and return to the kisscan process of step (B).

If it is not clear key in (E), go to step (H) and check whether it is a current error condition. If an error condition is needed, it is necessary to clear the error condition and ignore the current input key. 80) The operation returns to the step (B) and waits for the clear key to be input.

If the status is not an error in step (H), an arbitrary key is input, and in step (J), it is checked whether the current input key is an error due to a key operation error or an error due to a calculation overflow. The city performs key functions for the corresponding key.

When an error occurs in step (J), the error code is set in step (C), and the error is classified in step (M), so that the CPU 20 recognizes the state of the error and outputs continuously in step (N). After driving the possible rich man 80, the alarm proceeds to step O, and the error code pre-sorted is displayed numerically together with the error display and displayed on the display unit 60.

In addition, in order to notify the user who used the wrong key operation sequence in advance, the information of the available keys is stored in advance in the case of a function key input before the error situation in step (P), and the error display unit 100 is stored in advance. In order to display on, the corresponding display device for the current error situation is turned on in the function table as shown in FIG. 4 so as to induce a user's key operation, and then returns to step (B) to wait for a key input thereafter.

As described above, the cash register can be notified to the user through the display element of an error situation occurring during the operation of the cash register, with a continuous buzzer sound, and an input enable key for error elimination in the function key condition before the error occurrence. There is an advantage that can be used efficiently.

Claims (1)

A cash register system having a function key data table which can be input after an error occurs, comprising: a first step of analyzing a key input by means of a key scan; and checking whether a clear key is performed after performing the first step; Performing a clear function according to whether there is a clear function and returning to the first process, and checking whether the current state is an error state if the clear key is not cleared in the second process, ignoring the input key when the error state is returned, and returning to the first process. Characterized in that it consists of a thin third process.

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