Error-correction encoding and decoding method of 72-bit status information big data traceability system

Abstract

This invention discloses an error-correction encoding and decoding method of a 72-bit status information big data traceability system. The error-correction encoding and decoding method comprises the steps of: encoding at most a thousand of identity information codes; through adding redundant additional check codes, errors of matrix codes can be corrected automatically by a decoding program when reading codes so as to handle incomplete matrix code patterns successfully; and ensuring that the correct identity information codes are extracted. By adoption of the error-correction encoding and decoding method, the identity information codes of boxes damaged in the circulation process can be restored precisely; logistic information of the related commodity can be inquired and checked through retrieving a data base so as to solve the logistic problem; the identity information code of the commodity can be restored precisely after half of the matrix code is destroyed randomly; if more than half of the matrix code is destroyed, the identity information code also can be probably restored; the logistic information of the commodity can be quickly checked through the related data base to form an important link of the traceability system of the commodity; and, the method has low cost and strong error correcting capability, and is applicable to the fast moving consumer goods market with large sales volume and small profits.

Description

technical field [0001] The invention relates to the field of circulation commodity information traceability system, in particular to an error-correctable encoding and decoding method for a 72-bit state information large data traceability system used for commodity outer packaging. Background technique [0002] Flood goods refer to the act of dealers of commodities disregarding the commercial agreement with the manufacturer, selling goods across regions without permission to earn the middle price difference. Flood goods have seriously damaged the economic interests of manufacturers, endangered corporate brands, and disrupted market rules. . If the identity information of the goods can be known, it can be traced back to the logistics information of the goods, thereby combating counterfeiting and counterfeiting. Therefore, the commodity information traceability system is playing an increasingly important role in modern society. [0003] However, some traditional commodity trace...

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Problems solved by technology

[0003] However, some traditional commodity traceability solutions, such as radio frequency identification technology, are not suitable for the low-profit fast-moving consumer goods industry due to high cost, and other low-cost technologies, such as two-dimensional code technology and laser anti-counterfeiting technology, do not have anti-destruction and anti-interference function, unable to cope with man-made sabotage

The error correction matrix code scheme based on discretization is low in cost and has ideal error correction performance, but when the number of identity information codes exceeds one million levels, the error correction performance of the matrix code deteriorates sharply, which is not conducive to the promotion to the huge FMCG market

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