Aviation electric connector pin position deviation detection method
An electrical connector and deviation detection technology, which is applied in the field of position deviation detection of aviation electrical connector pins, can solve the problems of low pin insertion efficiency and easy missed detection, achieve low missed detection rate, reduce missed detection rate, and facilitate reference Effect
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Example Embodiment
[0033] Specific embodiment one:
[0034] In the method for detecting the position deviation of the pin position of the aviation electrical connector of this embodiment, the method is implemented by the following steps:
[0035] Step 1. According to different pin diameters of aviation electrical connectors, make individual pin images of different specifications as pin template images;
[0036] Step 2: Obtain the pin image of the electrical connector through the image acquisition system;
[0037] Step 3: Perform preprocessing of the pin image of the electrical connector, retain the area of interest with the pin image, and filter out the background interference to prevent the background image from interfering with the extraction of the pin; use the custom pin template image in step one Perform template matching on the pin image of the electrical connector to obtain the best matching point, and use the obtained best matching point coordinates as the approximate position of the pin;
[00...
Example Embodiment
[0041] Specific implementation manner two:
[0042] The difference from the first embodiment is that in the method for detecting the position deviation of the pin position of the aviation electrical connector of this embodiment, the process of obtaining the pin image of the electrical connector through the image acquisition system in step two is that the image acquisition system adopts a ring shape. The light source carries out a high-angle forward lighting method. The light emitted by the ring light source illuminates the pin to be tested at a 60° angle to the horizontal plane. The 500w pixel industrial camera lens is set directly above the connector to be tested to collect its image. , And then calculate the resolution of the industrial camera in the horizontal and vertical directions to meet the minimum resolution requirements of the image acquisition system to obtain the image of the electrical connector pin:
[0043] Horizontal resolution = horizontal field of view size ÷ mini...
Example Embodiment
[0059] Specific implementation manner three:
[0060] The difference from the first or second embodiment is that in the method for detecting the position deviation of the pin position of the aviation electrical connector in this embodiment, the preprocessing of the pin image of the electrical connector is performed in step 3, and the region of interest with the pin image is retained. At the same time, the process of filtering out background interference is to extract the pin position coordinates in the image through the image processing technology of image segmentation and image feature extraction, and obtain the pin coordinates in the image coordinate system:
[0061] First, preprocess the image of the electrical connector to remove the images of other structures other than the electrical connector. The processing result is as follows image 3 Shown
[0062] Then, but the edge of the electrical connector is very bright, it is easy to cause the mismatch of the pins, continue to filte...
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