Method for recognizing in-out service state of relay protection pressing plate based on color template matching
A technology of template matching and throwing and withdrawing status, which is applied to emergency protection circuit devices, emergency protection data processing devices, electrical components, etc., can solve the problems of multiple relay protection screens, affect the recognition effect, and increase the difficulty of algorithm implementation Use difficulty, improve reliability, and remove the effects of lighting effects
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[0047] figure 1 It is a flowchart of a method for identifying the switching status of a relay protection press plate based on color template matching according to the present invention, including the following steps:
[0048] S1: Take an image of the relay protection plate;
[0049] S2: Image preprocessing, using the protective screen frame to complete the correction and extraction of the photographed image, and solve the problem of inconsistency in the angle and distance when taking pictures; the red rectangular frame around the relay protection screen is used as a mark. If not, manual marking can be performed.
[0050] S3: Template collection, according to the image of the pressing plate extracted after image preprocessing, manually erase irrelevant pixels to highlight the key pixels of the template's casting and exit status, and set the required key position points and parameter information;
[0051] S4: Image recognition, using the image of the pressing plate extracted after imag...
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