Dynamic two-dimensional code generation, reading method and device

Abstract

The invention provides a method for generating and reading a dynamic two-dimensional code and a device thereof. The method for generating the dynamic two-dimensional code includes: encoding the information to be encoded into an information codeword; calculating the distribution center of each information codeword in the codeword space according to the distribution of each information codeword in the codeword space; According to the distance between each information code word and the distribution center, the encoded information code word is redundantly encoded to form the final encoded information code word; according to the encoded information code word, a two-dimensional code image including a preset number is generated The dynamic two-dimensional code image sequence, and the value of the distribution center of the code word space and the initial sum are carried in each frame of the two-dimensional code image. By applying the present invention, even when the scanning frequency of the reading device is lower than the display frequency of the dynamic two-dimensional code, the original information to be encoded can be quickly and accurately obtained from the dynamic two-dimensional code.

Description

technical field [0001] The invention relates to the technical field of two-dimensional codes, and in particular, to a method for generating and reading a dynamic two-dimensional code and a device thereof. Background technique [0002] At present, with the rapid development of two-dimensional code technology, two-dimensional codes have been more and more widely used in various fields of social life. However, since the security of various QR codes used in the prior art is not high enough and can be easily copied, the security of QR codes has begun to attract everyone's attention, especially when using QR codes for payment. The security of the QR code is particularly important. [0003] In order to improve the security of the two-dimensional code, many technical solutions and specific implementations have been proposed in the prior art. For example, in the prior art, a technology for generating a dynamic two-dimensional code has been proposed. In this technology, in order to...

AI Technical Summary

Problems solved by technology

[0004] However, when using the above dynamic QR code, there may also be some problems

For example, since multiple two-dimensional code images in the dynamic two-dimensional code are sequentially displayed according to a predetermined display frequency, if the scanning frequency of the reading device is relatively low, especially when the scanning frequency is lower than the display frequency of the dynamic two-dimensional code When it is much lower, the reading device cannot obtain all the two-dimensional code images in the two-dimensional code image sequence of the dynamic two-dimensional code through one scan, and can only read the two-dimensional code image sequence of the dynamic two-dimensional code through continuous circulation. Subsequent decoding cannot be performed until all the two-dimensional code images in the two-dimensional code image sequence are read, which will greatly prolong the reading time for the reading device to read the dynamic two-dimensional code

Therefore, it can be seen that the above-mentioned dynamic two-dimensional code is more suitable for reading devices with high scanning frequency, but not suitable for the actual scene of reading devices with low scanning frequency, thus limiting the application scenarios and Application field

Images