JPH01120285U

JPH01120285U -

Info

Publication number: JPH01120285U
Application number: JP1673388U
Authority: JP
Priority date: 1988-02-10
Filing date: 1988-02-10
Publication date: 1989-08-15

Description

[Brief explanation of the drawing]

第１図はこの考案の機能ブロツク図、第２図は
実施例の構成図、第３図はその管理メモリのデー
タ内容例を示す図、第４図はスレーブ装置の動作
を示すフローチヤート、第５図、第６図はマスタ
装置、バツクアツプマスタ装置における、それぞ
れ、問合せデータ受信時、点検あるいは精算処理
時の動作を示すフローチヤートである。２……ＣＰＵ、３……ＲＡＭ、７……伝送部、
８……バーコードリーダ、Ｍ……マスタ装置、Ｂ
Ｍ……バツクアツプマスタ装置、ＳＬ……スレー
ブ装置、Ｍ１……ＰＬＵ別売上合計メモリ、Ｍ２
……管理メモリ、ＣＴ……Ｎｏカウンタ、Ｆ……
マスタダウンフラグ、Ｐ……ポインタ。 Fig. 1 is a functional block diagram of this invention, Fig. 2 is a configuration diagram of an embodiment, Fig. 3 is a diagram showing an example of data contents of its management memory, Fig. 4 is a flowchart showing the operation of the slave device, 5 and 6 are flowcharts showing the operations of the master device and the backup master device, respectively, when receiving inquiry data, and during inspection or payment processing. 2...CPU, 3...RAM, 7...Transmission section,
8... Barcode reader, M... Master device, B
M...Backup master device, SL...Slave device, M1...Sales total memory by PLU, M2
...Management memory, CT...No counter, F...
Master down flag, P... pointer.

Claims

[Scope of Claim for Utility Model Registration] It has a first storage means for storing at least unit price data and sales data for each product classification, and each time inquiry data is received from a slave device, at least unit price data of the product related to the inquiry is stored. is transmitted to the inquiry source slave device, and the first
has a master device that updates the sales data of the product related to the inquiry in the storage device, and the first storage device similar to this master device, and the above-mentioned processing that should be performed by the master device is performed when the master device fails. In a sales data processing device equipped with a backup master device that acts on behalf of the customer, each time the product identification data of the product to be registered is inputted to the slave device, inquiry identification data is added to the slave device and the data is sent to the master device or Send predetermined inquiry data to one of the backup master devices, and if no response data is obtained, send the above inquiry data containing the same inquiry identification data to the other backup master device or master device. an inquiry means is provided, and the master device and the backup master device include second storage means for storing inquiry data including inquiry identification data from the inquiry means;
Inside the above master device M and backup master device B
Detection means for comparing the contents of the second storage means with those in M and detecting duplicate inquiry identification data;
A sales data processing device comprising: correction means for correcting the sales data of the corresponding product in the first storage means based on the duplicate inquiry identification data detected by the detection means.