Mark formed by dot matrixes and two-dimensional code and generation and identification method of mark

Abstract

The invention provides a mark formed by dot matrixes and a two-dimensional code. The mark is formed by a plurality of sets of dot matrix patterns and the two-dimensional code. The dot matrix patterns are distributed on the outer sides of the two-dimensional code. Each dot matrix pattern is in a designated shape and can not be distinguished through naked eyes. The effective area of each dot matrix pattern is larger than or equal to 3*3 square millimeters, and each dot matrix pattern is formed by arraying at least one set of information points with the diameter ranging from 30 micrometers to 40 micrometers. A generation and identification method of the mark includes the first step of converting the two-dimensional code to a dot matrix pattern ID corresponding to the two-dimensional code and generating the dot matrix patterns through the dot matrix pattern ID, the second step of combining the dot matrix patterns and the two-dimensional code to form the composite mark and encrypting and storing the dot matrix patterns, the third step of printing the composite mark on the surface of a piece of commodity and reading the composite mark through an identification device, and the fourth step of extracting a two-dimensional code pattern in the composite mark, converting the two-dimensional code pattern into a digital information character string, comparing the digital information character string with the dot matrix pattern ID and feeding back information according to the comparison result. Compared with an existing common two-dimensional code, the composite mark generated through the method is more effective in anti-counterfeiting.

Description

technical field [0001] The invention relates to an anti-counterfeit mark, in particular to a mark formed by a dot matrix and a two-dimensional code and a method for generating and identifying it. Background technique [0002] Two-dimensional code (two-dimension code), also known as two-dimensional barcode, is a black and white pattern distributed on a plane (two-dimensional direction) with specific geometric figures according to certain rules, and is a key to all information data. In modern commercial activities, a wide range of applications can be realized, such as: product anti-counterfeiting / traceability, advertisement push, website link, data download, commodity transaction, positioning / navigation, electronic voucher, vehicle management, information transmission, business card exchange, wifi sharing wait. [0003] Because the two-dimensional code has the advantages of large encoding information capacity, high decoding reliability, and easy production, it is gradually in...

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Problems solved by technology

[0004] However, since the two-dimensional code can be easily copied or copied, when the copied or copied two-dimensional code is identified, the authenticity of the item can still be known. Therefore, the information stored in the two-dimensional code is not safe.

In addition, because the coding rules of

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