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FPC flexible flat cable appearance defect detection method and system and medium

A technology of appearance defects and detection methods, applied in image data processing, instruments, calculations, etc., can solve problems such as short circuit of FPC flexible cable, uneven tin plating and tin spraying, performance and quality degradation, etc., and achieve the goal of eliminating spots and noise interference Effect

Active Publication Date: 2021-08-24
FOSHAN POLYTECHNIC
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Problems solved by technology

[0002] During the production process of the FPC flexible cable used in electronic circuits, due to insufficient immersion gold, unstable temperature, uneven tin plating and tin spraying, Foreign matter pollution and other equipment failure factors can easily lead to the introduction of different types of defects in the production of FPC flexible cables, resulting in short circuits, open circuits, functional failures and performance quality degradation of FPC flexible cables
The traditional FPC soft cable appearance defect detection process is mainly done manually. The recognition speed, accuracy and stability are easily affected by the experience, emotion and work attitude of the inspectors, and it is prone to problems such as false detection and missed detection. It is difficult to quickly and timely send the detection data to the production management information system, and the degree of automation is relatively low

Method used

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  • FPC flexible flat cable appearance defect detection method and system and medium
  • FPC flexible flat cable appearance defect detection method and system and medium
  • FPC flexible flat cable appearance defect detection method and system and medium

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Embodiment Construction

[0059] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0060] It should be noted that although the functional modules are divided in the system schematic diagram and the logical order is shown in the flow chart, in some cases, it can be executed in a different order than the module division in the system or the flow chart steps shown or described. The terms "first", "second" and the like in the specification and claims and the above drawings are used to distinguish similar objects, and not necessarily used to describe a specific sequence or sequence.

[0061] With the continuous improvement of the industrial scale, testing requirements and labor costs...

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Abstract

The invention discloses an FPC flexible flat cable appearance defect detection method and system and a medium. The FPC flexible flat cable appearance defect detection method comprises: acquiring an original image of an FPC flexible flat cable; converting the original image into a grayscale image, and performing preprocessing and noise reduction on the grayscale image; performing feature extraction on the grayscale image to obtain a binary image, wherein the features comprise the centroid, the area and the number of the flexible flat cable; and judging whether the flexible flat cable has appearance defects or not according to the centroid, the area and the number of the flexible flat cable. The appearance defect detection speed of the FPC flexible flat cable can be greatly improved, meanwhile, the detection stability and accuracy can be improved, the appearance defects can be conveniently sent to a production management information system in time, and the detection automation degree is improved.

Description

technical field [0001] The present invention relates to the technical field of digital image processing, in particular to a method, system and medium for detecting appearance defects of FPC flexible cable. Background technique [0002] During the production process of the FPC flexible cable used in electronic circuits, due to insufficient immersion gold, unstable temperature, uneven tin plating and tin spraying, foreign matter pollution and other equipment failure factors, it is easy to cause the production of FPC flexible cable Different types of defects are introduced at the same time, resulting in short circuit, open circuit, functional failure and degradation of performance quality of FPC flexible cable. The traditional FPC soft cable appearance defect detection process is mainly done manually. The recognition speed, accuracy and stability are easily affected by the experience, emotion and work attitude of the inspectors, and it is prone to problems such as false detecti...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T5/00G06T7/10G06T7/62
CPCG06T7/0004G06T7/10G06T7/62G06T2207/30141G06T2207/30242G06T5/92G06T5/70
Inventor 欧幸福陈文凤易铭黄远民
Owner FOSHAN POLYTECHNIC
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