KR20000000833A - Plu manage method of electronic cash register - Google Patents

Abstract

PURPOSE: A PLU manage method of an electronic cash register is provided to improve memory use efficiency by saving and managing a lot of PLU data in the same memory sphere. CONSTITUTION: The PLU manage method of an electronic cash register comprises the steps of: making out an option flag table in a PLU saving sphere and a certain sphere of a separately prepared memory; linking the option flag table to a PLU by saving the option flag table number in the PLU file, related with a corresponding PLU among the option flag table when making out a PLU file; executing a sale registration by reading the corresponding option flag table if the linked option flag table exists.

Description

How to manage PL oil of electronic cash register

The present invention relates to a method of managing a price look-up table (PLU) of an electronic cash register. More specifically, the option flags for a PLU are divided into an option flag table without storing the option flags for the PLU. It relates to a PLU management method of an electronic cash register which can be used by linking a table number.

In general, a cash register refers to a device used to facilitate information management by processing various data accompanying product sales and informing a user of results. The range is from point of sales system to comprehensively manage distribution economy such as inventory and inventory research. Hereinafter, in the present specification, the term Electronic Cash Register (ECR), 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.

Conventional electronic cash registers manage sales quantity and price information for each item handled by the user in the cash register in a lookup table called PLU, thereby managing products of many items in connection with a limited item key. Such a PLU is allocated to a predetermined area of the memory device, where the name, item number, unit price, tax rate, and option flag information for limiting sales are stored in the PLU.

However, since such an option flag occupies a size of several bytes for each PLU, the number of PLUs to be managed reaches tens of thousands in the case of a normal ECR terminal, which is limited by the option flags stored together in each PLU. The number of PLUs that can be managed in memory is limited. Accordingly, there is a problem in that more PLUs cannot be managed by option flags when limited memory is used, and cost increases when a large amount of memory is used to increase the management amount of PLUs and option flags.

Accordingly, an object of the present invention is to solve the above-described problem, and an object thereof is to separately configure an option flag table that stores only an option flag by separating the option flag from the PLU, and then link the option flag table related to the PLU to use the memory. It is to provide a PLU management method of an electronic cash register that allows for efficient use of the electronic device.

In order to achieve the above object, in the PLU management method of the electronic cash register according to the present invention, if it is determined that the option flag table creation signal is input in the program mode, the option flag information is input to receive a PLU storage area and a predetermined area of the memory separately provided. Creating an option flag table in the; Linking the option flag table to the PLU by storing an option flag table number related to the corresponding PLU among the created option flag tables in a predetermined area on the PLU file when the PLU file is created; In the registration mode, it is determined whether there is an option flag table linked to the corresponding PLU file of the item entered according to the product sale, and if the linked option flag table exists, the step of reading the option flag table and performing the sales registration is performed. It is made.

1 is a system block diagram showing the configuration of an electronic cash register to which the present invention is applicable;

2 is an exemplary view showing a configuration of a PLU and an option flag table for implementing the present invention;

3 is a flowchart illustrating a PLU management method for implementing the present invention.

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

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

30: real time clock part, 40: rom,

50: ram, 60: printer,

70: display, 80: power supply.

Hereinafter, a PLU management method 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.

1 is a system block diagram of an ECR system to which a PLU management method of an electronic cash register according to the present invention is applied. As shown in FIG. 1, an ECR system to which the present invention is applicable includes a key input unit 20 and a key input unit 20 generating a mode designation signal and various key codes for money registration. The central processing unit 10 for specifying the mode of the ECR and performing various functions in the designated mode, the ROM 40 in which the system operation program is embedded, and storing various data generated during the program or transaction set by the user. Under the control of the RAM 50, the real-time clock unit (RTC) 30 for providing real-time information to the central processing unit 10, and a printer for issuing documents for customer receipts and various processing results under the control of the central processing unit 10 ( 60), a display unit 70 for displaying various information related to money transactions and the like under the control of the central processing unit 10, and a power supply unit 80 for supplying power to the entire system.

Meanwhile, the general operation modes of the ECR include a program mode, which is a mode used to change the program contents of various files and tables used in the ECR, and a registration mode for registering and processing various transaction information generated at the point of sale. In addition, there is a check mode and a settlement mode for issuing a report on the transaction history processed for a certain period of time.

2 is a diagram illustrating an embodiment of a structure of a PLU and an option flag table connected to a PLU for implementing the present invention. As shown in FIG. 2, the option flag table number is stored in the PLU storing the product information for each item of sale in order to link the option flag table storing the option flag information of the item. do.

On the other hand, PLU (Price Look-Up) is a kind of look-up table that manages the sales quantity and price information for each item handled by the user in the cash register. 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 receipt issuance and money registration business. Is called 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.

3 is a flowchart illustrating an input method of an option flag table for implementing the present invention. As shown in FIG. 3, in the input method of the option flag table for implementing the present invention, first, in step S10, it is determined whether the operation mode of the current cash register is set to the program (PGM) mode. If it is determined that the operation mode of the current cash register is not set to the program mode, the process proceeds to step S22 to perform a function of the corresponding mode. On the other hand, when the operation mode is set to the program mode as a result of the determination in step S10, it is determined whether the option flag table setting command is input in step S12. If it is determined in step S12 that the information input signal of the option flag table is determined, step S14 or less is performed. If the setting command of the option flag table is not input, the process proceeds to step S24 and the input key is entered. Perform the corresponding function.

In step S14, the number of the option flag table to be programmed is set, and in the next step S16, the option flag information to be stored in the option flag table of the number set in the step S14, for example, tax rate information related to the item. Enter other option flag information. Thereafter, in step S18, the input option flag information is stored, and in step S20, it is determined whether input of the option flag information is completed. As a result of the determination, if the input of the option flag information is not completed, steps S14 and below are repeated to continuously input other option flag tables, and when the input of the option flag information is completed, the program of the option flag table is completed. Will end.

On the other hand, when programming a PLU, the user wants to store information in the PLU, for example, after inputting information such as item number, item name, unit price, and connection group corresponding to the PLU, as shown in FIG. The table number is stored in the preset area. Therefore, when the corresponding product is sold in the registration mode, the operation of registering the selling item is performed by referring to the information of the option flag table linked to the corresponding PLU.

The PLU management method of the electronic cash register according to the present invention is not limited to the above-described embodiments, and may be modified in various ways within the scope of the technical idea of the present invention.

As described above, in the PLU management method of the electronic cash register according to the present invention, the option flag part included in each PLU is divided into an option flag table and stored in a separate memory area, and each PLU has an associated option. The option flag table number is stored so that the flag table is linked so that the product registration can be performed by applying the option flag when the product is sold.

Accordingly, the PLU management method of the electronic cash register according to the present invention does not store and manage option flags together in a limited memory area separately provided for storing PLUs, and manages them separately in a separate memory, thereby managing more in the same memory area. A large amount of PLU information can be stored and managed to provide an advantage of improving memory usage efficiency.

Claims (1)

If it is determined that the option flag table creation signal is input in the program mode, receiving the option flag information and creating the option flag table in a predetermined area of a memory separate from the PLU storage area; Linking the option flag table to the PLU by storing an option flag table number related to the corresponding PLU among the created option flag tables in a predetermined area on the PLU file when the PLU file is created; In the registration mode, it is determined whether there is an option flag table linked to the corresponding PLU file of the item entered according to the product sale, and if the linked option flag table exists, the step of reading the option flag table and performing the sales registration is performed. PLU management method of the electronic cash register provided.