Reading device and reading method of two-dimensional bar code marked on metal cylindrical surface directly

A two-dimensional barcode and reading device technology, applied in the direction of electromagnetic radiation induction, etc., can solve problems such as rapid positioning of high-brightness reflective cylinder distortion, achieve fast and perfect splicing, and save reading time

Inactive Publication Date: 2011-08-17
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The purpose of the present invention is: starting from the overall research idea of ​​combining the design of the reading device and the innovation of the reading method, to solve the existing problems of rapid positioning and collection of two-dim

Method used

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  • Reading device and reading method of two-dimensional bar code marked on metal cylindrical surface directly
  • Reading device and reading method of two-dimensional bar code marked on metal cylindrical surface directly
  • Reading device and reading method of two-dimensional bar code marked on metal cylindrical surface directly

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Embodiment Construction

[0063] The implementation example of the present invention consists of a reading device and a reading method for directly marking a two-dimensional barcode on a metal cylinder as described below.

[0064] The reading device for directly marking the two-dimensional barcode on the metal cylinder of this implementation example is as follows: figure 1 , figure 2 As shown, it consists of a base 1, a camera 2, a casing 3, a light source 4, an infrared sensor switch 5 and a top cover 7, and the specific dimensions are as follows: the overall length, width and height of the base 1 are 168×160×25mm, and The center of the surface is designed with a boss, the length, width and height are 158×150×10mm, and the lower surface is designed with grooves to reduce weight. For details, see image 3 . The camera 2 is an AFT-1300UM 1.3 million industrial-grade black and white digital camera from Vision Company, with a length, width and height of 54.5×54.5×90mm. Set on to shoot at 10 frames per...

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Abstract

The invention discloses a reading device and a reading method of a two-dimensional bar code marked on a metal cylindrical surface directly, which realize fast positioning and efficient reading of the two-dimensional bar code on the metal cylindrical surface. The device comprises a base 1, a camera 2, a shell 3, a light source 4, an infrared sensor switch 5 and a top cover 7. The metal cylindrical surface can be positioned efficiently; a high-quality image of the two-dimensional bar code which is marked on the metal cylindrical surface directly, has low distortion of the cylindrical surface and does not have highlight reflection is acquired quickly; an image splicing fusion algorithm is realized by a program; and the algorithm is accordant with an internal information arrangement principle of the Data Matrix two-dimensional bar code and characteristics of being vertical to the two-dimensional bar code marked by an axis of a cylindrical metal component, so that fast and perfect splicing of the image of the two-dimensional bar code can be realized. By the invention, various defects that a conventional handheld bar code scanner reads the two-dimensional bar code marked on the metal cylindrical surface directly are solved, reading operation is simplified greatly, reading ratio is improved, and the aim of improving comprehensive reading efficiency is fulfilled.

Description

[0001] 1. Field [0002] The invention relates to a reading device and a reading method for directly marking a two-dimensional barcode on a metal cylinder, so as to realize rapid positioning and efficient reading of the two-dimensional barcode on the metal cylinder. 2. Background technology [0003] Fast and accurate reading of the Data Matrix two-dimensional barcode directly marked on the metal surface is the basis for realizing the full life cycle management and information tracking of metal parts, and is the key to improving inventory management efficiency and realizing production process information collection and real-time tracking. [0004] The reading ability of the reading equipment is very important to the reading speed and accuracy of the two-dimensional barcode information on the metal surface. Due to the diversity of the surface of the existing metal parts, only a handheld two-dimensional barcode scanner can be used to directly mark the metal surface. Carve a two-d...

Claims

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Application Information

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IPC IPC(8): G06K7/10
Inventor 何卫平林清松雷蕾王伟李夏霜
Owner NORTHWESTERN POLYTECHNICAL UNIV
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