KR960000492B1 - Plu processing method of cashregister - Google Patents

Abstract

storing an input information on item number linked in a price look-up table, and tax rate, and clearing the number of PLU treatments when a preset mode is selected; in case that a register mode is selected and a PLU number is inputted, increasing the amount of money for the number of PLU treatments after registering the PLU; if a check mode is selected, counting the amount of money of the PLU treatment by multiplying the number of PLU treatments by the preset money; recognizing the total amount of money for the PLU treat; and if there is a normal mode, clearing the number of PLU treatments.

Description

PLU treatment method of cash register

1 is a block diagram of a cash register of the present invention.

2 is a structure of a conventional PLU cell

3 is a structure of a PLU cell of the present invention

4 is a flow chart of the present invention.

5 is an example of a PLU check report of the present invention.

* Explanation of symbols for main parts of the drawings

1: central processing unit 2: power supply unit

3: rom 4: ram

5: keyboard portion 6: display portion

7: printer portion 8: drawer portion

9: buzzer circuit

The present invention can process a large number of PLUs with a small amount of RAM by deleting each PLU transaction amount from the PLU cell structure and writing a program to issue a check or settlement report by multiplying each PLU transaction number with a preset amount of each PLU. It relates to a PLU processing method of a cash register.

Price Look-Up Table (PLU) is a kind of look-up table.It is a function to manage the sales quantity and price information for each item handled by the user in the cash register.It is connected to a limited item key so that many items can be managed. do.

More specifically, a method of storing various information linked to the number of each item in the memory device of the microcomputer, and reading the data of the corresponding item according to the item number input from the user so as to be used for issuing receipts and money registration services. Is called the PLU method. Typically, for each item, each PLU is assigned to a given area of the memory device, where the PLU is a collection of information such as the number of transactions, the unit price, and the tax rate of the item.

Conventionally, in the case of a cash register having 200 PLUs, each PLU has a PLU cell structure in a memory device as shown in FIG. 2, and when the PLU check is performed in the check mode, the information corresponding to each PLU is read. The same report will be issued.

Referring to FIG. 2, the storage space in the memory for one PLU has a size of 12 bytes, and each PLU has an area (0) for information such as linked item number and tax rate, and a PLU preset amount. The area 1 to 4, the area 5 and 6 for the number of PLU transactions, and the area 7 to 11 for the amount of PLU transactions.

Here, the information such as linked item number and tax rate is information such as the item number linked to the user's key input to point to the item and the tax rate for the item, and the PLU preset amount is the unit price of the item. The number of PLU transactions is the number of sales of the item, and the data is updated every time the sale is made. The PLU transaction value is the value multiplied by the PLU preset amount and the number of PLU transactions and means the total sales amount of the item.

The PLU cell has a transaction amount of each PLU for each PLU, which occupies a large amount of capacity in a limited RAM such as 8k bytes, so that the memory area used for other purposes is insufficient, resulting in a larger capacity. Since the RAM is selected, there was a problem of causing hardware price increases and design difficulties.

The present invention has been made to solve the above problems, and in the conventional memory structure for the PLU, the area for storing the transaction amount of each PLU is deleted and only the number of transactions of each PLU is managed to check the PLU or issue the settlement report. By multiplying the number of transactions and the preset amount of each PLU to print each PLU transaction amount on the PLU report, it is possible to obtain the same effect as a PLU having each PLU transaction amount area so that the amount of RAM can be used efficiently. It relates to a PLU processing method of a register. The PLU processing method of the cash register of the present invention deletes the transaction value area of each PLU from the conventional PLU cell structure in the cash register having the same hardware configuration as the existing cash register, and stores each PLU transaction count and each PLU transaction amount area. It is about a method that can save a lot of capacity and can handle a large number of PLUs with a small amount of RAM.

Exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a configuration diagram of a cash register, which includes a power supply unit 2 for supplying power to each element, a ROM 3 in which a program as a control means is embedded, and a RAM 4 that stores processing data associated with each other. ), A keyboard section 5 for accepting key input, a display section 6 for displaying the transaction status, a printer section 7 for issuing transaction receipts, and a drawer section 8 for opening a cash drawer when a transaction occurs And a buzzer circuit 9 for indicating key input and error conditions, and a central processing unit 1 for controlling each of the elements.

In the above hardware configuration, the RAM 4 has an internal battery so that data stored for at least 60 days can be stored even when the cash register is powered off.

FIG. 3 shows a memory structure of each PLU of the present invention. In the conventional PLU cell structure shown in FIG. 2, an area for storing a PLU transaction amount is deleted, and information such as linked item number and tax rate is deleted. An area 0 for storing, an area 1-4 for storing a PLU preset amount, and an area 5, 6 for storing the number of PLU transactions. The PLU configured as described above exists in the number of items in the memory of the cash register of the present invention.

The PLU processing method of the cash register according to the present invention will be described with reference to the above configuration based on the PLU key processing flowchart shown in FIG.

When program execution starts, variable initialization is performed, and if there is no operation error, it is determined whether it is a registration mode, a preset mode, a progressive mode, or a settlement mode.

The registration mode is the process of performing the normal money registration service of the cash register. The preset mode is the process of newly setting various kinds of information of the PLU in the memory. The check or settlement mode is the transaction amount of each PLU and the transaction amount of the total PLU. The process of calculating it.

First, when the preset mode is selected by the user's mode switch operation, it is determined whether the preset is possible, and information such as the PLU number, the linked item number and the tax rate, and the PLU preset amount are received from the user. Stored in the area for the corresponding PLU of the RAM (4) shown in FIG.

At this time, the area storing the number of transactions of the PLU in the area of the corresponding PLU of FIG. 3 is cleared.

Next, when the registration mode is selected by the user's mode switch operation, when a transaction of the corresponding PLU occurs and the corresponding PLU number is input, the relationship between the PLU registration and the item is performed.

In addition, the number of PLU transactions that indicates the sale of the item corresponding to the PLU number is increased by "1", and the increased number of PLU transactions is stored in the area for the number of PLU transactions in the memory of FIG.

Next, when the inspection mode is selected by the user's mode switch operation to grasp the PLU transaction sales status, the general function of the inspection and settlement of the PLU is performed.

Then, the transaction amount of each PLU is calculated by multiplying the number of transactions of the corresponding PLU by the corresponding PLU preset amount, and the transaction amount of the total PLU is calculated by adding the transaction amount of the corresponding PLU to the transaction amount of the total PLU so far.

The transaction amount of each PLU calculated in the above step and the transaction amount of the total PLU are stored in a predetermined area of the RAM 4 used as a memory. The trading amount of each PLU is stored in the area shown in FIG. 3, and the total PLU trading amount is stored in the area of the RAM 4 preset.

The calculation of the transaction amount of each PLU, the calculation of the transaction amount of the total PLU, and storing the calculated data may be repeatedly performed until the final PLU number.

In this way, when the above operation is completed for the final PLU number, the transaction amount of each PLU and the transaction amount of the total PLU are read from the RAM 4 and printed on the PLU inspection report using the printer 7.

Upon completion of the print, it is determined whether the payment mode is set. In the settlement mode, the number of transactions of each PLU stored in the RAM 4 is cleared.

As described above, in the past, 12 bytes of storage space was required for each PLU. However, in the present invention, the PLU transaction amount area occupying 5 bytes of the storage space of each PLU is deleted. RAM capacity can be saved.

In addition, even in the conventional 12-byte PLU cell structure, even if the 7-byte PLU cell structure in which the 5-byte PLU transaction amount area is deleted is used, the 12-byte PLU cell structure is calculated by calculating the transaction amount of each PLU by a multiplication operation. The same effect as that can be used to save the RAM capacity, which provides cost saving and ease of hardware design.

Claims (1)

In the cash register comprising a memory device having a predetermined area for storing information such as linked item number and tax rate for each PLU, the number of PLU transactions, and the PLU preset amount, when the preset mode is selected, Receiving information such as a linked item number and a tax rate for each PLU, a preset amount of money, and storing the preset amount in a corresponding area of the memory device, and clearing the number of PLU transactions; If a registration mode is selected and a PLU number is input, increasing the number of PLU transactions of the memory device after performing a relationship between PLU registration and items; When the check mode is selected, the number of transactions for all PLUs is multiplied by the preset amount to calculate the amount of each PLU transaction, the sum of each PLU amount is calculated to calculate the total PLU transaction amount, and the calculated result is returned. The PLU processing method of the cash register comprising the step of clearing the number of transactions for all PLU.

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