Method for generating and recognizing marks formed by dot matrix and one-dimensional code

Abstract

The invention provides a mark formed by dot matrixes and a one-dimensional code. The mark is composed of a plurality of sets of dot matrix images and the one-dimensional code. The multiple sets of dot matrix images are distributed on the outer side of the one-dimensional code, are in assigned shapes and cannot be distinguished by naked eyes, and the effective area of the dot matrix images is not less than 3*3 square millimeters and is formed by arranging at least one set of information dots with the diameter ranging from 30 microns to 40 microns. The method for generating and recognizing the mark comprises the steps that the one-dimensional code is converted into the dot matrix image ID corresponding to the one-dimensional code, and the dot matrix images are generated through the dot matrix image ID; the dot matrix images are combined with the one-dimensional code to form a composite mark, and the dot matrix images are encrypted and stored; the surface of a product is printed with the composite mark, and the composite mark is read through a recognizing device; a one-dimensional image of the composite mark is extracted and converted into a digital information character string, the digital information character string is compared with the dot matrix image ID, and information is fed back according to a comparison result. Compared with an existing ordinary one-dimensional code, the generated composite mark has the anti-fake effect.

Description

technical field [0001] The invention relates to an anti-counterfeiting mark, in particular to a method for generating and identifying a mark formed by a dot matrix and a one-dimensional code. Background technique [0002] One-dimensional codes (also known as one-dimensional barcodes) are widely used in commerce, postal services, library management, warehousing, industrial production process control, transportation and other fields. They have the advantages of fast input speed, high accuracy, low cost, and strong reliability. [0003] Because objects of different colors reflect different wavelengths of visible light, white objects can reflect visible light of various wavelengths, and black objects absorb visible light of various wavelengths. Finally, when it is irradiated on the black and white one-dimensional barcode, the reflected light will be irradiated on the photoelectric converter, so the photoelectric converter receives the reflected light signal with different intens...

AI Technical Summary

Problems solved by technology

However, the one-dimensional barcode technology itself can only be used as logistics information monitoring and does not have anti-counterfeiting features. After it is copied and scanned, it is not uncommon for criminals to use counterfeit and shoddy products, and it is difficult to avoid fundamentally.

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