Electric power screen cabinet hard pressing board state identification method based on machine vision

Abstract

The invention discloses an electric power screen cabinet hard pressing board state identification method based on machine vision. An electric power screen cabinet image is acquired through image acquisition equipment. The state of each hard pressing board in the electric power screen cabinet image is identified. Through comparing the identified state with an original preset state of the hard pressing board, the position of the hard pressing board in changed state and the current state are acquired. According to the electric power screen cabinet hard pressing board state identification method,target positioning, result sequencing and state identification are performed on the hard pressing board on the electric screen cabinet, and finally the current state of each hard pressing board is obtained. The single identification result is compared with the original preset state in a one-to-one manner. If the single identification result is same with the original preset state, no treatment is performed; and otherwise, alarming is generated for reminding personnel of a sequence number of the problem and performing in-time treatment. The electric power screen cabinet hard pressing board stateidentification method has advantages of low cost, no specific requirement for appearance and color of the hard pressing board, relatively high adaptability for an outer environment, no requirement for excessive intervention by the personnel in the whole treatment process, visual operation and quick response. The position of the hard pressing board with the problem and the current state of the hard pressing board can be directly obtained.

Description

technical field [0001] The invention relates to the fields of image processing, machine vision and electric power intelligent inspection, and applies image processing and machine learning technology to electric power intelligent inspection, specifically a machine vision-based method for identifying the state of hard pressure plates of power screen cabinets. Background technique [0002] The switching (connection) and withdrawal (disconnection) operation of the hard pressing plate of the power screen cabinet is the main item of the secondary equipment operation in the switching operation of the substation. The hard pressing plate is the bridge and link for the protection device to connect with the external wiring, which is related to the protection function. and whether the action export can function normally. [0003] At present, the checking of the hard pressing plate of the power screen cabinet is basically done manually. The electric power workers hold the paper hard pres...

AI Technical Summary

Problems solved by technology

Due to the large number of hard pressing plates in the station, the checking work is time-consuming and laborious, and manual checking is prone to omissions and errors. Once the hard pressing plates are in the wrong position, there will be risks in equipment operation, which will pose a great threat to power supply security.

[0004] Some methods using image processing technology mostly use hard-calibrated platen color or image projection for segmentation, which is extremely dependent on the appearance of the platen. Once the color of the hard platen is inconsistent with the calibration, or there are other hard platens with multiple colors, or the light makes the color invisible or Color shift, etc., such methods basically fail

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