Mr. Yongchang Xu Profile

Yongchang Xu

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Proceedings Article | 5 June 2024 Paper

Detection of insulator defects based on improved YOLOv7 method

Hai Li, Ruirong Tan, Chengyang Liu, Yongchang Xu

Proceedings Volume 13163, 131633O (2024) https://doi.org/10.1117/12.3030635

KEYWORDS: Inspection, Detection and tracking algorithms, Object detection, Defect detection, Target detection, Power grids, Feature extraction, Deep learning, Feature fusion, Evolutionary algorithms

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The smooth operation of power equipment is an important prerequisite for ensuring the production and life of residents. The insulator is an important component in the distribution network system. The defect size of the distribution network line insulator is small, and it is easy to be missing in the outdoor environment for a long time. The traditional target detection algorithm usually makes it difficult to identify the defect. Therefore, this paper proposes an insulator missing detection method based on improved YOLOv7 algorithm. Firstly, the insulator image data in the distribution network line is collected by the UAV; secondly, using the powerful feature extraction ability of the improved algorithm, the insulator is detected from the sample photo, and whether the insulator is normal or not is distinguished. Finally, the accuracy of the method is verified by experiments. The experimental results show that the accuracy of the method is 1.07 % higher than that of the original YOLOv7 algorithm, which can effectively distinguish whether the insulator is missing.

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