Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Matrix two-dimensional code coding method and decoding method

A technology of matrix two-dimensional codes and coding methods, which is applied in error detection coding, record carriers used by machines, error correction/detection using block codes, etc., and can solve problems such as difficult to read, unreadable barcodes, and low space utilization And other issues

Pending Publication Date: 2018-01-05
闫河
View PDF4 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One-dimensional barcodes have the following disadvantages: the data capacity is small, and the character set that most one-dimensional barcodes can represent is only 10 numbers, 26 English letters and some special characters; the size of barcode symbols is relatively large, that is, the space utilization rate Lower; barcodes cannot be read after damage, etc.
The reading speed of the QR code is slow, and it is not easy to read when it is damaged

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Matrix two-dimensional code coding method and decoding method
  • Matrix two-dimensional code coding method and decoding method
  • Matrix two-dimensional code coding method and decoding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] see figure 1 , figure 2 and image 3 , the first aspect, the present invention provides a kind of coding method of matrix two-dimensional code, comprising:

[0087] Step S1, converting the information code into a data code;

[0088] This step is to analyze the input information flow or data flow to determine the type of encoded characters in the information. The coded character sets contained in information coding are: (1) digital data (numbers 0 to 9); (2) alphanumeric data (numbers, letters; 9 other characters space, $, %, *, +, one, ., / ,:); (3) 8-bit byte data; (4) Chinese characters. Since the encoded information stream is usually composed of multiple types of data, such as: numeric characters, English text characters, Chinese characters, etc., it is necessary to analyze the information to determine the data type, and perform corresponding data processing according to the corresponding type. coding. When encoding, the string is divided into multiple fields a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a matrix two-dimensional code coding method and decoding method. The method comprises steps that an information code is converted into a data code; a corresponding error correction code is generated according to a selected error correction grade and an error correction mode; a two-dimensional code symbol dimension parameter is calculated; a default unit, a column odd-even check unit, a row odd-even check unit, a CRC verification unit, an information storage unit and a view finding graph are generated, the function information is converted into a binary system data bit flow according to a preset coding mode, a rectangular area is set, and a two-dimensional code is generated. The method is advantaged in that the column odd-even check unit, the row odd-even check unit and the CRC verification unit are set through a matrix two-dimensional code to verify the information stored in the two-dimensional code, interlacing ability is strong, mistakes in certain forms can becorrected, no correction graph is needed, the quantity of bar codes is small, the data coding mode is simple, coding and decoding efficiency is high, and the redundancy information is little.

Description

technical field [0001] The invention relates to the field of data identification, in particular to the field of encoding methods and decoding methods of matrix two-dimensional codes. Background technique [0002] Bar code technology is an emerging technology developed on the basis of computer technology and information technology that integrates coding, printing, identification, data collection and processing. The barcodes usually printed on commodity packaging are ordinary one-dimensional barcodes. One-dimensional barcodes have the following disadvantages: the data capacity is small, and the character set that most one-dimensional barcodes can represent is only 10 numbers, 26 English letters and some special characters; the size of barcode symbols is relatively large, that is, the space utilization rate Lower; the barcode cannot be read after it has been damaged, etc. In daily applications, once a one-dimensional barcode is used to represent Chinese characters, it is very...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06K19/06H03M13/09
Inventor 闫河
Owner 闫河
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products