JPH0756679B2 - Product data input device control system - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a product data input device for inputting sales data and the like, and particularly to an electronic cash register, a point-of-sale information management terminal, etc. in business involving the transfer of money. It is used as part of the system that comprises it.

〔Overview〕

The present invention relates to a control method of a product data input device in which data of an identification code of a product, fixed information such as name and unit price, and variable information such as quantity is input, and the identification code and the fixed information are volatile internal storage means. The variable information is stored in a non-volatile internal storage unit to prevent the loss of data due to a failure and to reduce the price of the expensive non-volatile memory to reduce the price of the product data input device. To do.

[Conventional technology]

Conventionally, this type of data input device, by inputting the product code from the input key of the input unit, or the product code of the barcode label of the product from the scanning device,
Sales data was being processed. However, in general, in order to back up all product management information such as product identification code, unit price code, product name, and quantity data in the processing unit in the event of a failure such as a power outage, the security relationship of the device must be large. Become. That is, since the product identification code, unit price code, product name, and quantity data are all managed as one record in the product management file, in order to back up the product management information, a floppy disk device, magnetic disk device, etc. The external storage device or the non-volatile memory will be used.

[Problems to be solved by the invention]

However, there is a drawback in that it is impossible to realize high-speed processing in the external storage device and it is impossible to realize cost reduction in the nonvolatile memory.

It is an object of the present invention to provide a low-cost product data input device control method in which fixed information of product data is stored in a volatile memory so that product management information is not lost. .

[Means for solving problems]

A data input device of the present invention comprises an input section and a processing section as constituent elements, and stores a product management file in which product identification codes, unit price data, fixed information such as product names, and variable data such as quantity data are stored in association with each other. And a search means for retrieving data corresponding to the input data from the above input from the file, when the quantity data is input from the input section, the quantity data of the file is updated and the quantity data is updated. By storing and processing in a non-volatile memory so that it will not be lost due to a failure occurrence, at the time of failure recovery, fixed information such as product identification code and unit price data and product name can be restored from the master file of the product management file. Complete the product management file by restoring the quantity data using the quantity data stored in the non-volatile memory. It is characterized in that it is controlled so as to recover.

That is, according to the present invention, an identification code of a product, an input unit to which variable information of each product corresponding to each identification code is input, the above-mentioned identification code stored in an external storage unit, and each product corresponding to each identification code. The fixed information and the variable information are provided with an internal storage unit that stores the product management file in a file shape, and a processing unit that searches the product management file in the internal storage unit for the input data from the input unit. In the control method of the commodity data input device described above, the internal storage means is composed of a volatile memory and a non-volatile memory, and when the storage of the internal storage means is lost, the internal storage means is stored with the information stored in the external storage part. The recoverable product information is the fixed information, and the unrecoverable product information is the variable information from the product information stored in the external storage unit. The processing section is characterized in that the volatile memory stores the identification code, the fixed information and the pointer of the variable information, and the non-volatile memory includes control means for storing the variable information.

[Action]

If variable information for each product is stored in the non-volatile memory when the file means for storing the data of the product data input device is searched, it will not be lost even if a failure occurs.
Since the fixed information is recorded in the external storage device, it is stored in the volatile memory, and there is no problem even if it disappears during the search operation, and the capacity of the non-volatile memory can be reduced.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram for explaining the above embodiment. The product management file 1 in FIG. 1 stores product management information, identification code a, product name b, unit price data c, quantity data d, and product name b and unit price data c are fixed information. The quantity data d is variable information and is managed by the product management file processing unit 2. The product management file processing unit 2 is controlled by the control unit 3, and the magnetic disk 5, the floppy disk 4, and the communication line 6 are also controlled by the control unit 3. The magnetic disk 7 and the floppy disk 4 are used to store programs, product management files, and other files. The communication line 6 is used when transmitting the information obtained by this device to another device (not shown). The control unit 7 controls the display unit 8, the input unit 9, the printing unit 10, and the scanning unit 11, and exchanges data with the control unit 3. The display unit 8 displays data such as product name, unit price and quantity, the input unit 9 receives key input from the operator, the printing unit 10 prints a book such as sales information, and the scanning unit barcodes of the product. Is read and the identification code is sent to the control unit 7.

Next, the operation of FIG. 1 will be described.

In FIG. 1, when an identification code of a product is input from the input unit 9 or the scanning unit 11, the control unit 7 and the control unit 3
The identification code is passed to the product management file processing unit 2 via the, the product management file 1 is searched, the information of the product is searched, the quantity data d is updated, and the product name b and the unit price data c are stored in the control unit 3 and The information is displayed on the display unit 8 via the control unit 7 as necessary.

Next, regarding the detailed structure of the product management file and the search processing of the product management file in the above operation description,
This will be described with reference to FIG.

First, by searching the identification code for the same code as the identification code e in the volatile memory unit 12, the product name f,
A pointer h to the unit price data g and the quantity data is searched out.

Further, the nonvolatile memory unit 13 is searched using the pointer h to the quantity data, and the quantity data i corresponding to the identification code e is searched.

When a failure such as a power failure occurs during the above processing, the contents of the product management file 1 shown in FIG. 1 are, as shown in FIG. 2, an identification code e, a product name f, unit price data g and a quantity. By storing the data pointer h in the volatile memory unit and the quantity data i in the non-volatile memory unit, it becomes possible to prevent the loss of information.

When recovering from a fault, it is possible to restore the state before the fault occurred by expanding the product management file other than the quantity data stored in advance on the magnetic disk or floppy disk into the volatile memory section. .

〔The invention's effect〕

As described above, according to the present invention, variable information such as quantity data of a product management file is defined in a non-volatile memory to prevent loss of information when a failure occurs, and to reduce the cost of many parts of the product management file at low cost. Since it is housed in the volatile memory of the product, there is an effect that the price of the product data input device can be suppressed to the necessary minimum.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention. FIG. 2 is a detailed structural diagram of the product management file shown in FIG. 1 ... Merchandise management file, 2 ... Merchandise management file processing section, 3 ... Control section, 4 ... Floppy disk, 5 ...
Magnetic disk, 6 ... communication line, 7 ... control unit, 8 ...
Display unit, 9 ... Input unit, 10 ... Printing unit, 11 ... Scanning unit, 12 ... Volatile memory unit, 13 ... Nonvolatile memory unit, a, e ... Identification code, b, f ... Product name, c, g
...... Unit price data, d, i ... Quantity data, h ... Pointer to the quantity data.

Claims (1)

[Claims] 1. An input unit for inputting a product identification code and variable information of each product for each identification code, the identification code stored in an external storage unit, and a product for each product identification code. The fixed information and the variable information are provided with internal storage means that is stored in a file shape as a product management file, and a processing unit that searches the product management file in the internal storage means for input data from the input unit. In the control method of the product data input device described above, the internal storage means is composed of a volatile memory and a non-volatile memory, and when the storage of the internal storage means is lost, the internal storage means is stored based on the information stored in the external storage part. The product information that can be restored is the fixed information, and the product information that cannot be restored from the product information stored in the external storage unit is the variable information. The product data input device is characterized in that the volatile memory includes a control means for storing the identification code, the fixed information and a pointer for the variable information, and the non-volatile memory includes a control means for storing the variable information. Control method.