Method and system for transmitting information, device for displaying bar code and device for reading bar code

Abstract

The invention discloses a method and system for transmitting information, a device for displaying a bar code and a device for reading a bar code. The method comprises the following steps of: partitioning data information to be transmitted to obtain a plurality of data information blocks, and respectively bearing each data information block in a plurality of bar code signs; sequentially displayingthe bar code signs respectively bearing each of the data information blocks by the device for displaying the bar code; and sequentially reading each of the displayed bar code signs from the device for displaying the bar code by the device for reading the bar code, and decoding each of the bar code signs to acquire the data information. In the invention, the partitioned data information is respectively born in the plurality of bar code signs (each bar code sign bears one data information block), thus the information bearing capability (namely information capacity) of the bar code is improved on the premise of not reducing the error correction capability of the bar code and not increasing the cost of devices, and the fault tolerance of the bar code is improved by repeatedly displaying / reading the bar code.

Description

technical field [0001] The present invention relates to the technical field of information transmission, and in particular, to an information transmission method and system, and a barcode display and reading device. Background technique [0002] As an information bearing, information representation and information input technology, bar code has the characteristics of fast information input speed, high reliability and strong anti-interference ability. It has been widely used in many fields such as commodity circulation, library management, postal management, and banking system. [0003] Traditional barcodes are divided into one-dimensional barcodes and two-dimensional barcodes. A one-dimensional barcode is a graphic identifier used to record (carry) a group of information by arranging multiple black and white bars of unequal widths according to certain coding rules. One-dimensional barcode symbols have a simple graphic structure, each encoding scheme corresponds to a charac...

AI Technical Summary

Problems solved by technology

[0007] (1) The information carrying capacity of traditional one-dimensional barcodes and two-dimensional barcodes is low;

[0008] (2) Although the color barcode technology can greatly increase the information carrying capacity, it has high requirements for the barcode display device and reading device. The traditional grayscale-based display device and reading device cannot be used, and the cost of equipment replacement higher

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