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Visual detection method for screw on mobile terminal and control device

A mobile terminal and visual inspection technology, applied in the field of visual inspection, can solve problems such as complex process and unsuccessful application, and achieve the effects of reducing labor costs, reducing the probability of missed detection and false detection, and shortening the detection time

Inactive Publication Date: 2017-07-07
SHANGHAI SIMCOM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many types of mobile phones, and the product process is complex. The introduction of visual inspection equipment is basically a simple function of reading barcodes. For complex inspections such as detection of screws, conductive cloth, and plug-ins, it has not yet been successfully applied.

Method used

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  • Visual detection method for screw on mobile terminal and control device
  • Visual detection method for screw on mobile terminal and control device

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Embodiment Construction

[0034] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the implementation of the present invention in detail in conjunction with the accompanying drawings.

[0035] The first embodiment of the present invention relates to a visual inspection method for screws on a mobile terminal, such as figure 1 shown.

[0036] In step 101, the visual inspection machine is used to capture a picture of a mobile terminal that has no abnormality detected manually (that is, a good product) to obtain a standard picture. Usually, when the mobile terminal moves into the sensing range of the sensor installed in the visual inspection machine, the camera on the visual inspection machine is triggered to take pictures of the mobile terminal to obtain a standard picture.

[0037] In step 102, a feature area is selected from the captured standard picture, where the feature area refers to a uniquely identifiable area, su...

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Abstract

The invention discloses a visual detection method for a screw on a mobile terminal and a control device. The method comprises the following steps: taking a picture of a to-be-detected mobile terminal through a virtual detector; detecting a screw region on the picture taken currently through a spot detection method; if no screw head texture image is detected, judging that screw detection on the mobile terminal is abnormal; and if a screw head texture image is detected, judging that the mobile terminal passes screw detection. Through the method, the labor cost is lowered, the detection time is shortened, and the probability of missed detection and false detection is minimized.

Description

technical field [0001] The invention relates to a visual inspection technology, in particular to a visual inspection technology for mobile terminal screws. Background technique [0002] Visual inspection is to use machines instead of human eyes for measurement and judgment. Visual inspection refers to the conversion of captured objects into image signals through machine vision products (i.e., image capture devices), which are transmitted to a dedicated image processing system, and converted into digital signals according to pixel distribution, brightness, color and other information; Various calculations are performed on the signal to extract the characteristics of the target, and then the on-site equipment actions are controlled according to the results of the discrimination. Is a valuable mechanism for production, assembly or packaging. It is invaluable in its ability to detect defects and prevent defective products from being shipped to consumers. [0003] In foreign c...

Claims

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Application Information

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IPC IPC(8): H04N7/18H04M1/24G01V8/10
Inventor 戴明航
Owner SHANGHAI SIMCOM LTD
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