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High-speed laser drawing method for two-dimensional code

A two-dimensional code and laser technology, used in laser welding equipment, manufacturing tools, welding equipment, etc., can solve the problem of slow speed, and achieve the effect of improving speed, good function expansibility and reusability, and simple operation.

Inactive Publication Date: 2018-03-06
广州真知码信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, using traditional single-beam laser printing technology, it takes about 5-6 seconds to print a 1cm*1cm QR code, which is relatively slow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A laser high-speed drawing two-dimensional code method, comprising the following steps: BMP format two-dimensional code map minimization, two-dimensional code is formed by the arrangement of certain rules by black and white squares (i.e. code elements), and minimization refers to the use of a Pixels represent a black and white square. For example, for a 1-bit pixel, 1 represents a white square, and 0 represents a black square.

[0021] Vectorization of QR code graphs. A row of black and white squares of the two-dimensional code is composed of multiple line segments (ie, line segments formed of black code elements). In practice, printing a two-dimensional code is to print each line of the two-dimensional code in order from top to bottom, while a single laser beam prints a line segment at a time until a line of the two-dimensional code is printed.

[0022] A single laser beam engraves line segments line by line to print a QR code. Print in line priority order, that is,...

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PUM

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Abstract

The invention discloses a high-speed laser drawing method for a two-dimensional code. The high-speed laser drawing method comprises the following steps that a BMP-format two-dimensional code is minimized, each pixel point represents a black and white grid in the two-dimensional code, 1 represents a white grid, and 0 represents a black grid; a two-dimensional code figure is vectorized, a row of black and white grids of the two-dimensional code are composed of multiple line segments, and one line segment is printed through single-beam laser light every time till a row of code elements of the two-dimensional code are printed; and the line segments are burnt by row through the single-beam laser light, printing is conducted according to the row-major order, that is to say, the first row of codeelements of the two-dimensional code are printed from left to right, the second row of code elements are printed from right to left, then the third row of code elements are printed from left to rightagain, each row of code elements of the two-dimensional code are printed in a reciprocating mode, and then the complete two-dimensional code is finally formed.

Description

technical field [0001] The invention relates to the technical field of label printing, in particular to a laser high-speed drawing two-dimensional code method. Background technique [0002] The traditional single-beam laser printing technology requires the storage format of the two-dimensional code to be a vector image (such as eps, ttf, etc.), but in the actual single-beam laser printing process, it is printed according to the dot matrix of the two-dimensional code. Therefore, using traditional single-beam laser printing technology, it takes about 5-6 seconds to print a 1cm*1cm QR code, which is relatively slow. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the present invention makes full use of the advantages of the vector diagram of the two-dimensional code, completes the printing of the two-dimensional code by continuously printing line segments, and greatly improves the speed of printing the two-dimensional code by a single l...

Claims

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Application Information

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IPC IPC(8): B23K26/362
CPCB23K26/361
Inventor 吴秋蓉谭泉光
Owner 广州真知码信息科技有限公司