Method, system and device for generating two-dimensional codes on cylindrical surfaces

Abstract

The invention discloses a method, system and device for generating a two-dimensional code for a cylindrical surface. The method includes: acquiring a plane two-dimensional code, and obtaining the encoded content of the plane two-dimensional code by a two-dimensional code generating tool; The encoding content of the dimensional code, calculate the mapping relationship of the plane QR code on the surface of the target cylindrical object, and then obtain the coordinates of each pixel of the cylindrical QR code; according to the coordinates of each pixel of the cylindrical QR code, call the two The QR code generation tool generates a cylindrical QR code. According to the size of the plane two-dimensional code, the size of the target cylindrical object and the distance between the scanning device and the surface of the target cylindrical object, the invention can regenerate the cylindrical two-dimensional code and paste it on the surface of the cylindrical object, which can greatly improve the recognition rate. , provides a good help for the use of barcodes to identify cylindrical objects, and is of great significance to food traceability and logistics tracking. The present invention can be widely used in the field of two-dimensional codes.

Description

technical field [0001] The present invention relates to the technical field of two-dimensional codes, in particular to a method, system and device for generating two-dimensional codes for cylindrical surfaces. Background technique [0002] 2-dimensional bar code (2-dimensional bar code), also known as two-dimensional code, first originated in Japan, and is a black and white graphic recording data symbol distributed in a plane (two-dimensional direction) with a specific geometric figure according to certain rules information. In the coding, the concepts of "0" and "1" bit streams that constitute the internal logic basis of the computer are skillfully used, and several geometric shapes corresponding to the binary are used to represent the text and numerical information, through image input devices or photoelectric scanning devices Automatic reading to realize automatic processing of information. Among the two-dimensional codes, the QR code is more popular. It was invented by...

AI Technical Summary

Problems solved by technology

Paste ordinary two-dimensional barcodes on the surface of these objects. Although the barcode reading equipment has certain verification functions, etc., when the surface curvature of these objects is obvious, it will be difficult to read and paste the QR barcodes on the surface of these objects. read correctly

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