DBNet-based secondary circuit terminal strip wiring detection method in intelligent substation

Abstract

The invention discloses a DBNet-based secondary circuit terminal strip wiring detection method in an intelligent substation. The detection method comprises the following steps: S1, carrying out standardized preprocessing on image data to zoom out a picture; S2, extracting a multi-channel feature map of a terminal strip target and a cable marker wiring target of the image to be detected; S3, obtaining a probability graph and an adaptive threshold graph of each target; S4, obtaining a terminal strip communication region and a number tube communication region, and solving each target boundary contour; and S5, simply describing the boundary contours of the terminal strip and the number tubes by using a rotary rectangular frame, and judging the result that the number tubes are connected to the terminal strip according to the overlapping area proportion. According to the detection method disclosed by the invention, the indefinite target shape detection of the cable marker and the terminal strip under the field irregular dense arrangement working condition is realized, the corresponding connection relation between the cable marker and the terminal strip is judged by fully utilizing the overlapping area and position relation, the rapidity and robustness of the detection method are effectively balanced, and the rapid statistical collection of the switching condition of the secondary circuit of the transformer substation is realized.

Description

technical field [0001] The invention relates to the technical field of three-dimensional modeling and intelligent inspection of intelligent substations, in particular to a DBNet-based detection method for secondary circuit terminal strip wiring in intelligent substations. Background technique [0002] The digital technology of three-dimensional modeling of intelligent substation can be regarded as an extension of substation monitoring and remote viewing system. Through the three-dimensional modeling of the secondary equipment and its connection circuits in the actual substation, a panoramic digital image display of all key equipment in the substation can be achieved, which is helpful for the status evaluation of the protection equipment in the substation. However, since the actual equipment of the secondary circuit is connected to the number pipe by using the terminal block, the identification of the terminal block connection in the field is still quite challenging. In the ...

AI Technical Summary

Problems solved by technology

However, since the actual equipment of the secondary circuit is connected with the terminal block and the number pipe, the identification of the terminal block connection in the field is still quite challenging.

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