JPH08202950A - Plural price-lookup retrieval system - Google Patents

Abstract

PURPOSE: To provide a plural price-lookup retrieval system capable of effectively utilizing a data area, distributing the load of PLU retrieval and executing the backup for PLU data. CONSTITUTION: Each of plural POS devices 100, 200, 300, 400 is provided with an input device, a memory device 107, a CPU 104, and an in-line control part 106 connected to other POS devices through an in-line. The memory device 107 is provided with a control program 108 and a PLU table 109, the table 109 includes a key division table 110 and a PLU data part 111 and the program 108 has data writing, reading and retrieval means to/from the table 110. The control part 106 has a means for transmitting/receiving data to/from other POS devices. Each POS device has an independent POS number, dispersedly includes PLU data corresponding to the table 110 and registers sales based upon the table 110.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a price lookup (hereinafter referred to as "PLU") search system, and more particularly to a search system for a plurality of PLUs in a plurality of POS devices.

[0002]

2. Description of the Related Art A conventional PLU retrieval system for a POS device is a PLU that is built in or external to the POS device.
Product data (name, price, etc.) is searched from the key value registered in advance in the LU table, and sales are registered. In this system, when multiple POS devices are connected inline (hereinafter referred to as "LAN"),
P with all PLU data for each POS device
There is a system that has an LU table or has all PLU data in a server device connected by a LAN.

An object of the present invention is to provide a multiple PLU search system which can effectively utilize the data area and can distribute the load of PLU search.

Another object of the present invention is to enable backup of PLU data and to efficiently perform PL.
It is to provide a multiple PLU search system capable of performing U search and sales registration.

[0005]

In a PLU retrieval system having a PLU table having all PLU data for each POS device, there is a problem that waste occurs because there is duplicate PLU data for each POS device. is there. In addition, in the PLU search system that has all PLU data in the server device, there is no waste, but PL
Since U searches concentrate on the server device, there is a problem that the search time becomes long when the number of POS devices connected to the server device increases and the number of PLU searches increases.

[0006]

In order to solve the above problems, the present invention provides a plurality of POs connected in-line.
In the plural-price lookup search system having an S device, each of the POS devices includes a keyboard, a display device, a printing device, a bar code input device, a memory device, a CPU connected to these devices, the CPU and other plural devices. In-line control unit connected to the POS device via in-line, the memory device has a control program and a PLU table, and the PLU table has a key division table and a PLU data unit. The control program has writing means for writing data to the key division table, reading means for reading data, and searching means for searching data, and the in-line control section includes:
The POS device has means for transmitting and receiving data to and from another POS device, and each of the POS devices has its own POS number for designating the POS device and has PLU data corresponding to the key division table in a distributed manner. Sales are registered based on the key division table.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention. Figure 1 is a 4-digit PLU (0000-9999)
Code (key value) exists, and 4 POS devices are LAN
Fig. 3 shows a connected embodiment.

The first to fourth POS devices 100, 200,
300 and 400 are connected to the LAN 500 and are assigned POS numbers 1 to 4, respectively, and are assigned to the POS device 100.
Each number is stored in the control programs of 400 to 400.

In FIG. 1, the first POS device 100 is shown.
The detailed configuration of is shown. Other 2nd-4th POS
The devices 200 to 400 also have the same configuration as the first POS device 100. The first POS device 100 is a keyboard 1
01, the display device 102, the printing device 103, the bar code input device 105, the CPU 104 connected to these devices, the in-line control unit 106 connected between the CPU 104 and the LAN 500, C
And a memory device 107 connected to the PU 104.

The memory device 107 is a POS device 10.
Control program 108 for controlling 0 and PLU table 1
With 09. The PLU table 109 has a key division table 110 and a PLU table section 111.
The key division table 110 includes a key start position designating section 112.
, Key end position instruction unit 113, and POS number instruction unit 1
The POS number designating section 114 has 14 data and can store a plurality of POS numbers.

In the PLU table section 111, a key data section 115 and a key value of the key data section 115 is 1
It has respective data of the product name data section 116 and the price data section 117 corresponding to the pair 1. Further, the control program 108 stores its own POS number and uses the data of the key start position designating section 112 and the key end position designating section 113 of the key division table 110 to determine the POS number designating section 114.
With the means to retrieve the data of.

First, as one embodiment of the PLU table section 111, FIG. 2 shows the structure of the key division table 110 of the PLU table 109 when dividing the key values 0000 to 9999 into the four POS devices 100 to 400, respectively. . First POS device 100 to fourth POS device 400
Have a key division table 110 with the same contents.

First, in the case of registering sales by the first POS device 100, the control program 108 for causing the bar code input device 105 to read the bar code of the product for sales registration.
Searches the key division table 110 from the read key value. If the read key value is in the range of 0000 to 2500, the POS number is 1, so the first POS device 100 uses the key 11 in its own PLU table section 111.
5 is searched, the product name and price corresponding to the entered key value and the one-to-one correspondence are read, and sales registration is performed.

When the key value read by the bar code input device 105 is in the range of 2501 to 5000, the POS number of the key division table 110 is 2. Therefore, the control program 108 searches the second POS device 200. Key value to send.

The control program 108 of the second POS device 200 refers to its own key division table 110 on the basis of the key value received from the first POS device 100, and then P
The LU table 109 is searched and the search result is the first POS.
Reply to the device 100. The first POS device 100 performs sales registration based on the search result received from the second POS device 200.

Next, each POS device 100-400 is
An example in which the U data is partially duplicated will be described.
As an example, a POS device 1 is used in the same system as described above.
FIG. 3 shows the PLU partition table 110 in the case where 00 to 400 have key values of 0000 to 2500 in an overlapping manner.

First, the control program 108 refers to the key division table 110 based on the bar code data input by the first POS device 100. Control program 10
If the read key value is in the range of 0000 to 2500, 8 retrieves its own PLU table 111 and registers sales. Similarly, the key value input from the bar code input device 105 of the second POS device 200 is 0000-2.
If the range is 500, the control program 108 of the second POS device 200 determines that the PO in the key division table 110
Since the user's POS number is registered as the S number, the user's own PLU table 109 is searched for sales registration, and other POS devices 100, 300, 400 are not searched.

If the first POS device 100 is 0000
If the key value in the range of ˜2500 is read and the PLU table 111 is searched and the data of the key value is destroyed and cannot be read, the control program 108 of the first POS device 100 causes the POS of the key division table 110 to be read.
The key value is transmitted to one of the POS devices 200 to 400 recorded in the number, the PLU table 109 recorded in this POS device is searched, and sales can be registered from the received search result. . Similarly, POS
Since the devices 100 to 400 have a part of the PLU data redundantly, double or triple backup of the PLU data can be performed.

Next, in this embodiment, the first POS device 100
The operation of adding, updating or deleting PLU data will be described. First, in the case of the embodiment of FIG.
When the OS device 100 adds, updates, or deletes PLU data, the control program 108 searches the key division table 100 to find out in which POS device the key value to be added, updated, or deleted is registered. PO
The key value to be added, updated or deleted is transmitted to the POS device having the S number. The received control program 108 of the POS device controls addition, update or deletion to the PLU data part of its own POS device based on the received key value to be added, registered or deleted.

Similarly, in the embodiment of FIG. 3, when the key value is added, updated, or deleted in the first POS device 100 between the key values 0000 and 2500, the first POS device 100.
The control program 108 of sends the key value to be added, updated or deleted to all the POS devices having the POS numbers stored in the key division table 110, and the PL value of each POS device is transmitted.
The U table 111 is added, updated, or deleted.

[0022]

According to the present invention, since a plurality of POS devices connected inline can have PLU data in a divided manner, the data area can be effectively utilized.
When the frequency of sales registration differs for each POS device, the PLU search load can be dispersed by allowing a POS with few sales registrations to have a large amount of PLU data.

Further, according to the present invention, a part of the PLU data can be overlapped by a plurality of POS devices, so that the PL data is PL.
Since U data can be backed up and frequently accessed data can be freely held in each POS device, PLU retrieval and sales registration can be efficiently performed.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a diagram for explaining a key division table of the embodiment of FIG.

FIG. 3 is a diagram for explaining another example of the key division table of the embodiment of FIG.

[Explanation of symbols]

 100 first POS device 101 keyboard 102 display device 103 printing device 104 CPU 105 bar code input device 106 in-line control unit 107 memory device 108 control program 109 PLU table 110 key division table 111 PLU table unit 112 key start position instruction unit 113 key End position instruction section 114 POS number instruction section 115 Key data section 116 Product name data section 117 Price data section 200 Second POS device 300 Third POS device 400 Fourth POS device 500 LAN

Claims (2)

[Claims] 1. A plurality of POs connected in-line
In the plural-price lookup search system having an S device, each of the POS devices includes a keyboard, a display device, a printing device, a bar code input device, a memory device, a CPU connected to these devices, the CPU and other plural devices. In-line control unit connected to the POS device via in-line, the memory device has a control program and a PLU table, and the PLU table has a key division table and a PLU data unit. The control program has writing means for writing data to the key division table, reading means for reading data, and searching means for searching data, and the in-line control section includes:
The POS device has means for transmitting and receiving data to and from another POS device, and each of the POS devices has its own POS number for designating the POS device and has PLU data corresponding to the key division table in a distributed manner. A multiple-price lookup search system, wherein sales registration is performed based on the key division table. 2. The multi-price lookup search system according to claim 1, wherein the plurality of POS devices are
A multi-price lookup search system, characterized in that a part of the PLU data is duplicated.