A detailed introduction to Chinese code

Two-dimensional code software supports a variety of two-dimensional code system, currently the main Data Matrix, QR code, PDF417 code and other American, Japanese code system. Generally speaking, these codes are mainly developed to meet the needs of different countries and different fields. Today I mainly introduce to you the Hanxin code, Hanxin code is a matrix two-dimensional code developed by China Article coding Center, which can identify all the commonly used Chinese characters, two-byte Chinese characters, four-byte Chinese characters specified in the standard, and support the expansion of the standard in the future. Therefore, the Chinese message code is the highest in the efficiency of Chinese information encoding.

Compared with other existing two-dimensional codes, Hanxin code has the following characteristics:

1. Intellectual property is free

As a completely independent innovative QR code system, Six technical patents of Hanxin Code "Error Correction Coding Method", "Data information Coding Method", "Chinese Character information compression Method of two-dimensional Barcode coding", "Method of generating two-dimensional barcode", "Method of converting two-dimensional Barcode Symbols into coded information", and "Method of correcting two-dimensional Barcode Graphics Distortion" have been successfully owned by the coding center. As early as the completion of Hanxin code research and development, the coding center has made clear the basic principle of free licensing of Hanxin code patents. There is no patent risk and patent trap in using Hanxin coding technology, and there is no need to pay patent royalties to the article coding center and other units.

2. Chinese character coding ability is super strong

3. Strong anti-fouling and anti-distortion reading ability

Hanxin code in the code diagram and error correction algorithm, reading algorithm carried out special optimization design, so that Hanxin code has a strong anti-fouling, anti-distortion reading ability. Now Hanxin code can accurately read in the case of Angle of 60 degrees, can tolerate a large area of symbol contamination, so Hanxin code is particularly suitable for use in harsh conditions such as logistics.

4. Fast reading speed

In the aspects of information coding, error correcting, encoding and decoding, and coding diagram design, Chinese letter code adopts a variety of technical means to improve the reading speed of Chinese letter code. At present, the reading speed of Hanxin code is higher than the international mainstream two-dimensional code-data Matrix, so Hanxin code can be widely used in the production line. Logistics, bills and other real-time requirements in the field of application.

5. High information density

In order to improve the information representation efficiency of Chinese code, this requirement is fully considered in the aspects of code diagram design, character set division and information coding, so as to improve the representation efficiency of Chinese code information, especially Chinese character information. When a large number of Chinese characters are encoded, the symbol area of the same information content of Chinese code is only 90% of the symbol area of QR code. Is 63.7% of Data Matrix symbols. Therefore, Chinese code is the preferred code system for identifying Chinese information.

6. Large information capacity

The Chinese letter code can represent 7829 digits, 4350 ASCII characters, 2174 Chinese characters, and 3262 8-bit information. It supports the encoding of digital information such as photos, fingerprints, palm prints, signatures, voices, and characters.

7. Strong code system expansion