Identification method and device of states of pressing plate devices of transformer station

Abstract

The invention discloses an identification method and device of device states of pressing plates of a transformer station. The method comprises steps of acquiring initial acquisition images of pressingdevices of a transformer station; extracting a to-be-identified image region corresponding to a signal pressing plate device from the initial acquisition images; carrying out depth reconstruction onthe to-be-identified image region so as to generate relative depth information; according to the relative depth information obtained through calculation, carrying out graph theory segmentation; segmenting the to-be-identified image region into foregrounds and backgrounds; and inputting the segmented to-be-identified image region into a pre-trained neural network classifier, and outputting workingstate information of the pressing plate devices in the to-be-identified image region. According to the invention, in a way of depth information reconstruction, the foregrounds and the backgrounds of the graph theory segmentation are determined; by use of the graph theory segmentation, images are segmented; by use of the trained neural network, the segmented images are identified; requirements on quality of illumination and images are quite low; quite high robustness is achieved in onsite light ray interference; and identification accuracy is quite high.

Description

technical field [0001] The invention relates to the technical field of substations, in particular to a method and device for identifying the state of pressing plate equipment in a substation. Background technique [0002] With the rapid development of computer technology and network communication technology, the development of power system automation construction has become more and more perfect, especially in the aspect of substation safety precautions, the latest computer technology, communication technology and image processing technology have been widely used, and implementations such as video surveillance System, intrusion alarm system, SF6 gas detection system and fire protection system, etc. These subsystems organically constitute the security auxiliary system of the substation. [0003] The switching and withdrawing operation of the protective pressure plate on the relay protection screen is the main item of the secondary equipment operation in the switching operatio...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method and device for state identification of substation pressure plate equipment to solve the problems of low robustness and low identification accuracy of existing identification methods

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