A method and system for preventing duplication of two-dimensional codes

Abstract

The present invention discloses a method and a system for preventing two-dimensional codes from being copied. The method comprises the steps of: obtaining dynamic two-dimensional codes, wherein the dynamic two-dimensional codes comprise first static state two-dimensional codes and second static state two-dimensional codes which are alternately displayed according to preset interval time; determining whether the obtained two-dimensional codes are the first static state two-dimensional codes or not, if yes, continuing to obtain two-dimensional codes until the second static state two-dimensionalcodes are obtained in a second delay time, or else, continuing to obtain two-dimensional codes after first delay time until the first static state two-dimensional codes are obtained; and performing decoding. The system comprises a two-dimensional code generation module, a reading module and a central processing module. The two-dimensional code generation module is configured to generate dynamic two-dimensional codes; the reading module is configured to obtain the dynamic two-dimensional codes; the central processing module is configured to perform decoding; and the reading module is in communication connection with the central processing module.

Description

technical field [0001] The invention relates to the application field of two-dimensional codes, in particular to a method and system for preventing duplication of two-dimensional codes. Background technique [0002] A two-dimensional code is a black and white graphic that is distributed in a two-dimensional direction with a specific geometric figure according to a certain rule to record data symbol information. The concept of bit stream uses several geometric shapes corresponding to binary to represent text and numerical information, which can be automatically read by image input equipment or photoelectric scanning equipment to realize automatic information processing. Due to the remarkable characteristics of large amount of information, wide coding range, high decoding reliability and low cost of use, two-dimensional codes have been widely used in various fields. It is easy to be copied and used many times. [0003] At present, the existing two-dimensional code anti-copyi...

AI Technical Summary

Problems solved by technology

Although this method can play an anti-counterfeiting role to a certain extent, it cannot guarantee that the QR code corresponding to the real product will be accessed first every time, which may easily cause the authenticity to be reversed; the combination of the invisible QR code and the visible QR code, The reading of invisible two-dimensional code information needs to be carried out through special two-dimensional code reading equipment. This method is costly, inflexible, and cannot be used on mobile terminals; The combined frequency of the vibration of hydrogen-containing groups (CH, OH, NH) in organic pigment molecules is consistent with the absorption of all levels of frequency multiplication. By scanning the near-infrared spectrum of the two-dimensional code, the content of organic molecules in the printed two-dimensional code ink is obtained. The method of characteristic vibration information of hydrogen groups, this method also has the disadvantage of being inflexible and cannot be realized on the mobile terminal

The utility model [201420079783.2] discloses a dynamic two-dimensional code display system, which still uses the wire network to process the two-dimensional code information and mobile terminal information through the background server, and then generates feedback information to the mobile terminal or re- Determine the new QR code, this utility model has high requirements on the network and server, and the management cost is also high

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