Two-dimensional code formed 72-bit matrix code error-correctable coding and decoding method

Abstract

The invention discloses a two-dimensional code formed 72-bit matrix code error-correctable coding and decoding method. The error-correctable coding and decoding method is characterized in that two-dimensional codes and 72-bit matrix codes are combined, advantages of the two-dimensional codes and the 72-bit matrix codes are brought into full play, the ability for preventing damages and interference is improved to the maximum extent, the 72-bit matrix codes perform coding on ten million identity information codes at most, redundant extra check codes are added, a decoding program can perform error correction on the matrix codes automatically in code reading, an incomplete matrix code pattern is dealt with successfully, and correct identity information codes are ensured to be extracted. The method disclosed by the invention can accurately recover an identity information code for a box damaged in the process of circulation, thereby solving a problem of channel conflicts; addition of the two-dimensional codes enables a channel conflict merchant to require to damage nearly the total area so as to achieve interference for commodity identity information acquisition, thereby forming an important link of a commodity tracing system; and the method is low in cost, high in error correcting capacity, and applicable to a fast-moving consumer commodity market with large sales volume and small profit.

Description

technical field [0001] The invention relates to the field of information traceability systems for circulating commodities, in particular to an error-correctable encoding and decoding method for a 72-bit matrix code composed of two-dimensional codes used for the outer packaging of commodities. Background technique [0002] With the increasingly fierce competition among enterprises, people have gradually found that it is becoming more and more difficult for enterprises to reduce production costs, and the quality of products has become only a stepping stone for enterprises to enter the market and participate in competition. At this time, the focus of competition began to shift to non-production fields, and to those logistics fields that were scattered and isolated in the past and were regarded as insignificant auxiliary links. [0003] At present, the production and sales links have been lacking in effective management and control in terms of logistics activities, so the losses...

AI Technical Summary

Problems solved by technology

Among them, radio frequency identification technology has anti-pollution ability and durability, but due to its high cost, it is not suitable for the fast-moving consumer goods industry with thin profits

Two-dimensional code technology and laser anti-counterfeiting technology are low in cost, but they do not have the functions of anti-damage and anti-interference, and cannot 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

Although the dot matrix code technology has the advantages of low cost and strong error correction ability, when the degree of damage exceeds 50%, it is no longer fast, effective or even unrecognizable.

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