Method for generating fakeproof fiscal code in printing data outputted from POS

A POS machine, printing data technology, applied in the direction of digital output to printing unit, electrical digital data processing, special data processing applications, etc., can solve the problems of CPU resource consumption, long design cycle, large changes to the POS system, etc., to achieve no occupation The effect of system resources, shortened design cycle, and high anti-counterfeiting performance

Inactive Publication Date: 2007-03-07
HISENSE INTELLIGENT COMML SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has a large change to the POS system, and the design cycle is long. For POS machines that use different data transmission types, the transformation cost is relatively high.
Moreover, separate calculation and processing for printing data will consume CPU resources and reduce the operating efficiency of the whole system
Therefore, the feasibility of this tax control data generation method is very low

Method used

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  • Method for generating fakeproof fiscal code in printing data outputted from POS
  • Method for generating fakeproof fiscal code in printing data outputted from POS
  • Method for generating fakeproof fiscal code in printing data outputted from POS

Examples

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Embodiment 1

[0030] Embodiment 1, as shown in Figure 1, the method for generating the anti-counterfeiting tax control code from the print data output by the POS machine according to the present invention,

[0031] From the print command and data stream output from the POS machine to the printer, the data stream is analyzed according to the ESC / POS command set, and the data stream is divided into two types: print command and data string.

[0032] Classify and store the above two types of data according to the original order of arrangement.

[0033] According to the pre-set analysis rules, the single item amount and date are extracted from the string sequence of the printed invoice as encryption factors for generating anti-counterfeit tax control codes.

[0034] Convert the extracted factor into a character string through the DES encryption algorithm, and insert it into the original print queue according to the preset position.

[0035] Output the printing instruction and character string i...

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PUM

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Abstract

This invention relates to one method to generate anti-false tax control code from POS machine output data, which solves the current ESC/POS order printer data flow and analyzes the data flow and extracts the key data to generate anti-false tax control code and prints the codes into the invoice.

Description

technical field [0001] The present invention is a method for extracting key data and generating an anti-counterfeit tax control code, specifically analyzing the print data stream sent from a POS machine (commercial cash register) to a printer, extracting key data to generate an anti-counterfeit tax control code, and Insert the anti-counterfeit tax control code into the original data flow. Background technique [0002] At present, in large and medium-sized commercial places, there are various types of POS machines, that is, commercial cash registers. In accordance with the relevant current national standards, in order to strengthen the tax management, the data in the tax control memory, invoice memory and tax control IC card in the tax control equipment can be guaranteed to be accurate and properly preserved. At the same time, in order to ensure the authenticity and validity of tax records, it is required that the currently promoted POS machines can generate corresponding ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/12G06F17/00G07G1/12
Inventor 于秀棠王建军慕安臻强仁李龙伟
Owner HISENSE INTELLIGENT COMML SYST CO LTD
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