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Method and system for realizing offline transaction of POS invoicing server

A server and tax control server technology, applied in the field of network communication, can solve problems such as inability to communicate in real time, server failure, and business impact, and achieve the effects of ensuring real-time performance, improving reliability, and ensuring integrity

Inactive Publication Date: 2017-07-04
AEROSPACE INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is inevitable that the network will be disconnected or the server will fail, resulting in the inability to communicate in real time, thus affecting normal business

Method used

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  • Method and system for realizing offline transaction of POS invoicing server
  • Method and system for realizing offline transaction of POS invoicing server

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The embodiment of the present invention provides a method for realizing offline transactions of the POS billing server, so as to ensure that the offline transaction information can still be transmitted to the server in the case of offline or offline, and realize the complete process of issuing invoices for the POS machine .

[0046] Under normal conditions, the POS system and the tax control server can establish a connection and perform data communication, and the processing flow is as attached figure 1 .

[0047] Step 101: The MIS software of the POS terminal system calls the billing interface and requests the tax control server to establish a secure connection;

[0048] Step 102: the tax control server authenticates the request, and establishes a connection after determining that it is a legal request;

[0049] Step 103: After the secure connection is established, the POS terminal sends billing data to the tax control server, and the server analyzes the request data...

Embodiment 2

[0060] In step 203, the interface also includes before the step of querying the local memory:

[0061] Step 2031: The interface sends the newly issued invoice information to the server and receives the returned tax control code. After the transaction is completed, the TCP connection is not disconnected.

Embodiment 3

[0063] In order to ensure the efficiency of information transmission and avoid the occurrence of network congestion, the maximum offline transaction threshold contained in a single online transaction is set, and the number of single online transactions does not exceed the threshold.

[0064] When the interface initiates a request for reissuing invoices to the server, it reads the invoice details one by one according to the maximum offline transaction threshold in the parameter configuration, sends them to the server and receives the corresponding tax control code, and records the successfully issued log Delete, when the maximum number of offline transactions is reached or all offline transactions are sent, the TCP connection will be disconnected.

[0065] Record the billing transaction log on the POS side, transmit the log to the server at the same time, and analyze and count the billing situation within a certain period of time and the cause of the failure on the server side, ...

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Abstract

The present invention provides a method and a system for realizing an offline transaction of a POS invoicing server, in order to ensure that in the case of offline, offline transaction information still can be transmitted to the server, and a complete invoicing process of a POS machine can be realized. The method comprises that a POS terminal transmits invoicing detail data to the server by calling the interface; if the server or the network fails, the interface records the data in a POS terminal log file; and the interface inquires a local memory until the fault is eliminated, and if there is information that has not been successfully invoiced, a request for supplemental invoicing is initiated to the server. According to the method and system provided by the present invention, invoicing information is stored when the server or the network fails, and continuous transmission is carried out on the information that has not been successfully invoiced after the fault is eliminated, so that it is ensured that the off-line data is not lost, the offline transaction can be completed, and the integrity of invoicing data is ensured.

Description

technical field [0001] The present invention relates to the technical field of network communication, in particular to an offline transaction method and system of a POS (Point of Sale, sales terminal) billing server. Background technique [0002] At present, large and medium-sized shopping malls and supermarkets generally adopt a LAN-based POS sales management system. This system has the characteristics of a large number of POS terminals, busy business transactions, many types of commodities, and diversified payment types and methods. [0003] In the POS billing server system, the LAN-based general invoice tax control server adopts the C / S (Client / Server) architecture. The front-end POS client sends billing data to the server, and the server receives the data and generates a tax control code and stores the invoice information. At the same time, return the tax control code to the POS terminal. [0004] Therefore, the billing server system must provide a safe, stable, efficie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q30/04G07G5/00H04L29/08
CPCG06Q30/04G07G5/00H04L67/59
Inventor 何巍赵欣郭向国
Owner AEROSPACE INFORMATION
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