Omnidirectional fault automatic identification method of isolation switch

Abstract

The present invention discloses an omnidirectional fault automatic identification method of an isolation switch. The visible light image information and infrared detection image information are collected through each direction of the isolation switch, then the corresponding image information is subjected to preprocessing, the algorithm fusion is carried out, the feature point extraction and description are carried out and a description vector is generated, then the description vector is subjected to feature matching, a wrong matching feature point is eliminated, an identification area and the coordinate of an edge point are determined, the obtained edge point is subjected to affine transformation are is marked in the infrared fusion image of the isolation switch, thus the automatic identification of the isolation switch infrared fusion image is completed, the template image of the isolation switch is subjected to mode identification, and thus whether the isolation switch has a fault or not is judged. According to the method, the defect in current isolation switch fault detection technology is solved, and the method has the advantages of non-contact precise identification, isolation switch component comprehensive identification and fully automatic fault detection and identification.

Description

technical field [0001] The invention belongs to the technical field of automatic fault identification of substation equipment, and in particular relates to an all-round automatic fault identification method for a disconnector. Background technique [0002] The safe operation of the isolating switch directly affects the safety and reliability of the substation operation, so the operating status monitoring and automatic fault identification of the isolating switch are very necessary. There are many types of faults in the isolating switch, including its mechanical fault, that is, whether the switch is closed, mechanically deformed, or broken; thermal faults, many faults of the isolating switch are manifested through abnormal temperature, including the heating of insulating ceramics at both ends, and Check whether there is any foreign matter attached to the switch. Ordinary thermal imaging cameras can detect internal or external defects, but only through the fusion of visible l...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an all-round fault automatic identification method for isolating switches, which solves the problem that the fault identification of isolating switches existing in the prior art is stuck in identifying its closed faults through visible light pictures and cannot meet various faults in actual situations. Types of Diagnostic Need Questions

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