Handset casing testing apparatus and method based on computer vision

A technology of computer vision and mobile phone casing, applied in computing, image data processing, instruments, etc., can solve problems such as uneven stretching during cooling time, irregular rounded corners, warping of rough products, etc.

Inactive Publication Date: 2015-12-16
TIANJIN UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] Mobile phone casing production and processing enterprises produce a large number of mobile phone casing blank products through mold injection molding. Due to the slight difference in cooling time during the injection molding filling process and uneven stretching during molding, some of the blank products will have warping and burr residues. , Aperture size error is large, rounded corners are irregular, resulting in defective products

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  • Handset casing testing apparatus and method based on computer vision
  • Handset casing testing apparatus and method based on computer vision
  • Handset casing testing apparatus and method based on computer vision

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Embodiment Construction

[0097] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0098] figure 1 It is a physical schematic diagram of the mobile phone shell detection device of the present invention; figure 2 It is a block diagram of the composition of the mobile phone shell detection device of the present invention; as figure 1 figure 2 Shown, a kind of mobile phone case inspection device based on computer vision of the present invention comprises, high-definition camera 10, auxiliary light source 20 and industrial control computer 30; The light source 20 is arranged at the mobile phone casing inspection station of the production line, which can capture the position of the mobile phone casing that needs to be accurately inspected, and is used to collect images of the mobile phone casing to be inspected; the industrial control computer 30 is connected with the high-definition camera 10 and the auxiliary light source 2...

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Abstract

The invention discloses a handset casing testing apparatus and method based on computer vision. The apparatus comprises a high-definition camera, an auxiliary light source and an industrial control computer. The auxiliary light source illuminates the visual field range of the high-definition camera. The high-definition camera and the auxiliary light source are arranged on handset casing testing stations of a production line and can capture handset casing parts requiring precise tests. The industrial control computer is electrically connected with the high-definition camera and the auxiliary light source. The method comprises a camera calibrating step; an image acquisition step; an image processing step; and a test result outputting step. By adopting technologies based on image processing, the apparatus and method achieve that precise positioning and precise testing are effective ways for automated production. The computer vision technologies have the characteristics of non-contact measurement, relatively wide spectrum range and capabilities of working for long, etc. The technologies can be widely applied in the industrial field and used for rapidly and precisely testing product related indexes. A high speed is achieved. A low maintenance cost is further realized.

Description

technical field [0001] The invention relates to a product detection device, in particular to a detection device and method which can automatically check the product quality of a mobile phone case in real time on a production line of a mobile phone case production enterprise, and belongs to the technical field of electronic optical detection. Background technique [0002] In domestic mobile phone casing manufacturers, the inspection of defective products is mostly carried out manually. The manual inspection method has advantages for cracks, color differences, warping deformation, rough oil stains and other phenomena of products. However, there is almost nothing that can be done for the inspection that requires a dimensional accuracy of 0.1mm aperture, and it is necessary to use computer vision image detection equipment to achieve high-precision inspection. [0003] Mobile phone casing production and processing enterprises produce a large number of mobile phone casing blank pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T7/0004G06T2207/10004G06T2207/30164
Inventor 张军朱新山薛俊韬杨正瓴
Owner TIANJIN UNIV
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