Recognition method of protection pressing plate state

Abstract

The invention provides a recognition method of a protection pressing plate state. The method includes the steps of reading a protection pressing plate image of an unknown state, completing positioning of a pressing plate in the image, performing pressing plate color projection of a certain type of protection pressing plate on the image, obtaining a type projection array, judging whether the obtained type projection array meets characteristic requirements of the type projection array of the type of protection pressing plate or not, judging the type of the protection pressing plate in the image to be the type of protection pressing plate and performing state recognition if the obtained type projection array meets the characteristic requirements of the type projection array of the type of protection pressing plate, continually performing pressing plate color projection of a next type of protection pressing plate and the judgment if the obtained type projection array can not meet the characteristic requirements of the type projection array of the type of protection pressing plate, performing background color projection of the type of protection pressing plate on the basis of the judged type of the protection pressing plate, obtaining a background projection array, judging the background projection array according to characteristics of the background projection arrays in various states of the type of protection pressing plate, and recognizing the sate of the protection pressing plate in the image. The sate of the protection pressing plate in the image can be accurately and rapidly recognized with the method.

Description

technical field [0001] The invention relates to the technical field of image processing and recognition, in particular to an image recognition method for the state of a protection pressing plate in a substation. Background technique [0002] The switching (connecting) and withdrawing (disconnecting) operations of the protective pressure plate on the relay protection screen are the main items of the secondary equipment operation in the switching operation of the substation. The protection pressure plate is the bridge and link for the protection device to connect with the external wiring, and it is related to whether the function of the protection and the action outlet can work normally. In the operation of the protective platen, strict rules and regulations are mainly used to improve the quality and sense of responsibility of the operators, and one-to-one verification is performed on the status of thousands of protective platens in a manual way. [0003] In order to avoid th...

AI Technical Summary

Problems solved by technology

[0004] The styles and colors of the relay protection pressure plate are various, and the fluorescent lighting environment in the computer room is unstable, and some situations such as occlusion and ineffectiveness of some lamp tubes may occur. At present, the recognition method of the protection pressure plate throwing and withdrawing state based on image processing needs to artificially increase light, a dark box, etc. To create lighting conditions to meet the requirements for image brightness in image recognition, otherwise the image cannot be accurately recognized

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