Intelligent detection device of defects of mobile phone outer shell based on machine vision

A mobile phone shell and intelligent detection technology, which is applied in the direction of optical testing for flaws/defects, sorting, etc., can solve problems such as slow speed and easy fatigue, and achieve the effect of ensuring accuracy

Inactive Publication Date: 2011-10-19
SOUTH CHINA UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

At present, the defects of mobile phone casings are mainly identified by human eyes, which is very slow and prone to fatigue. Moreover, mobile phone casings are mass-produced and c

Method used

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  • Intelligent detection device of defects of mobile phone outer shell based on machine vision
  • Intelligent detection device of defects of mobile phone outer shell based on machine vision
  • Intelligent detection device of defects of mobile phone outer shell based on machine vision

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[0029] The present invention will be described in further detail below in conjunction with specific examples, but the embodiments of the present invention are not limited thereto.

[0030] like figure 1 , the first industrial computer 15 is equipped with the first signal acquisition card 16 and the first image acquisition card 17, and this computer is responsible for the defect detection of the top surface of the mobile phone shell. The coaxial light source 23 is connected with the coaxial light source controller 24, the ring light source 22 is connected with the ring light source controller 25, the ring light source 22 is located directly below the coaxial light source 23, the axes of the two light sources coincide, and the first signal acquisition card 16 Respectively output control signals to the coaxial light source controller 24 and the ring light source controller 25, thereby respectively controlling the brightness of the coaxial light source 23 and the ring light source...

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Abstract

The invention discloses an intelligent detection device of defects of a mobile phone outer shell based on machine vision. The device comprises a transmitting device, detection systems, a degraded product unit and a computer; the transmitting device comprises two transmitting strips and a diversion air cylinder; each detection system respectively detects the frontage side, the left side, the rightside, the front side and the rear side of the mobile phone outer shell; each detection system comprises an illumination unit and an image collecting unit; the illumination unit illuminates one side of the outer shell of the mobile phone, and the image collecting unit photographs; collected image signals are transmitted to the computer; the computer recognizes the degraded mobile outer shell, and transmits the serial numbers of the mobile outer shell with defects to a degraded product rejecting unit; and the degraded product rejecting unit rejects the mobile phone outer shell with defects. According to the invention, defects such as scratches, burr, discoloration, dent, bubbles of the mobile phone outer shell can be detected, the degraded products are separated automatically, and the device has the characteristics of intelligence, high efficiency, stability and high accuracy.

Description

technical field [0001] The invention relates to the field of machine vision automatic detection, in particular to a machine vision-based intelligent detection device for mobile phone shell defects. Background technique [0002] As an emerging intelligent detection method, machine vision has been rapidly applied and promoted in fields such as industry, agriculture, and safety supervision. Machine vision is composed of industrial cameras, image acquisition cards, light sources, processing software, actuators, etc. It can replace part of the functions of human eyes and brains, and can automatically identify and analyze the processed objects. Machine vision is applied to product defect detection. Its advantages are high efficiency, stability, rapid identification of defects and no fatigue due to long working hours compared with manual detection. In addition, the advantages of its non-destructive testing play an important role especially in the testing of products with high surf...

Claims

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Application Information

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IPC IPC(8): B07C5/342G01N21/89
Inventor 文生平麦国铭
Owner SOUTH CHINA UNIV OF TECH
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