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A circuit board defect detection system and method on a production line

A defect detection and circuit board technology, applied in the field of automatic identification, can solve problems such as low reliability, low work efficiency, and inability to inspect circuit boards, and achieve the effect of ensuring reliability and improving reliability.

Active Publication Date: 2021-04-27
SICHUAN CHANGHONG ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the existing inspection methods use the naked eye spot check of workers. This method not only has the defects of low work efficiency and heavy workload of workers, but also has the disadvantage of not being able to check all the problems of the circuit board during the spot check, so it is also reliable. low degree problem

Method used

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  • A circuit board defect detection system and method on a production line
  • A circuit board defect detection system and method on a production line
  • A circuit board defect detection system and method on a production line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] like figure 1 As shown, a circuit board defect detection system on a production line includes a light irradiation unit, an image capture unit, an operation unit, a processing unit, and a display unit; the processing unit is connected to the image capture unit, the operation unit, and the display unit respectively.

[0053] The light irradiation unit is installed above the circuit board conveyor belt. The light irradiation unit is used to project illumination light onto the circuit board conveyor belt. The image capture unit is installed above the circuit board conveyor belt. The image capture unit is used to capture the circuit board conveyor belt in real time from a top view angle Image information on the computer, and transmit the collected image information to the processing unit for image processing.

[0054] The operation unit is used to realize the switch control of the system and the control of template training, the processing unit is used to realize the functio...

Embodiment 2

[0064] like figure 2 As shown, a circuit board defect detection method on a production line includes the above-mentioned circuit board defect detection system on a production line, and specifically includes the following steps:

[0065] A. After installing and fixing the detection equipment, click the background training button of the operation unit, and control the processing unit through the operation unit to perform background training;

[0066] B. Click the template training button of the operation unit, and control the processing unit through the operation unit to perform template training;

[0067] C. Carry out defect detection of the circuit board through the processing unit;

[0068] D. The processing unit outputs the detection result to the display unit for display.

[0069] Specifically, Step A specifically includes the following steps:

[0070] A1. Send a control instruction to control the processing unit to perform background training through the operation unit...

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PUM

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Abstract

The invention discloses a circuit board defect detection system, comprising a light irradiation unit, an image capturing unit, an operation unit, a processing unit, and a display unit; the light irradiation unit is installed above the circuit board conveyor belt, and is used for projecting illumination light onto the circuit board conveyor belt , the image capture unit is installed above the circuit board conveyor belt, and the image capture unit is used to collect the image information on the circuit board conveyor belt downward in real time from a top view angle, and transmit the collected image information to the processing unit for image processing; the operation unit is used for Realize the switch control of the system and the control of template training, the processing unit is used to realize the functions of template training, image registration, image comparison, and result output, and the display unit is used to display the detection results according to the results output by the processing unit. The system of the present invention adopts image acquisition and comparison to identify and detect circuit board defects, and can effectively solve the problem of automatic identification and detection of circuit board defects on a production line.

Description

technical field [0001] The invention relates to the technical field of automatic identification, in particular to a circuit board defect detection system and method on a production line. Background technique [0002] Image recognition is an important field of artificial intelligence. According to the needs of different application scenarios, different image recognition models have been proposed. For example template matching models. This model believes that to recognize an image, there must be a memory pattern of this image in past experience, also called a template. If the current stimulus can match the template in the brain, the image will be recognized. [0003] In the factory assembly line operation environment, due to various reasons during the circuit board placement process, there will inevitably be missing or wrong placement of components. At present, most of the existing inspection methods use the naked eye spot check of workers. This method not only has the def...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/33G06T5/00
CPCG06T7/0004G06T7/344G06T2207/20088G06T2207/30168G06T2207/30141G06T2207/10004G06T5/70
Inventor 李柯罗小娅
Owner SICHUAN CHANGHONG ELECTRIC CO LTD
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