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Research on Object Detection of Overhead Transmission Lines Based on Optimized YOLOv5s

Author

Listed:
  • Juping Gu

    (School of Electrical and Information Engineering, Suzhou University of Science and Technology, Suzhou 215101, China
    School of Electrical Engineering, Nantong University, Nantong 226019, China)

  • Junjie Hu

    (School of Electrical Engineering, Nantong University, Nantong 226019, China)

  • Ling Jiang

    (School of Electrical Engineering, Nantong University, Nantong 226019, China)

  • Zixu Wang

    (School of Electrical Engineering, Nantong University, Nantong 226019, China)

  • Xinsong Zhang

    (School of Electrical Engineering, Nantong University, Nantong 226019, China)

  • Yiming Xu

    (School of Electrical Engineering, Nantong University, Nantong 226019, China)

  • Jianhong Zhu

    (School of Electrical Engineering, Nantong University, Nantong 226019, China)

  • Lurui Fang

    (School of Advanced Technology, Xi’an Jiaotong-Liverpool University, Suzhou 215028, China)

Abstract

Object detection of overhead transmission lines is a solution for promoting inspection efficiency for power companies. However, aerial images contain many complex backgrounds and small objects, and traditional algorithms are incompetent in the identification of details of power transmission lines accurately. To address this problem, this paper develops an object detection method based on optimized You Only Look Once v5-small (YOLOv5s). This method is designed to be engineering-friendly, with the objective of maximal detection accuracy and computation simplicity. Firstly, to improve the detecting accuracy of small objects, a larger scale detection layer and jump connections are added to the network. Secondly, a self-attention mechanism is adopted to merge the feature relationships between spatial and channel dimensions, which could suppress the interference of complex backgrounds and boost the salience of objects. In addition, a small object enhanced Complete Intersection over Union (CIoU) is put forward as the loss function of the bounding box regression. This loss function could increase the derived loss for small objects automatically, thereby improving the detection of small objects. Furthermore, based on the scaling factors of batch-normalization layers, a pruning method is adopted to reduce the parameters and achieve a lightweight method. Finally, case studies are fulfilled by comparing the proposed method with classic YOLOv5s, which demonstrate that the detection accuracy is increased by 4%, the model size is reduced by 58%, and the detection speed is raised by 3.3%.

Suggested Citation

  • Juping Gu & Junjie Hu & Ling Jiang & Zixu Wang & Xinsong Zhang & Yiming Xu & Jianhong Zhu & Lurui Fang, 2023. "Research on Object Detection of Overhead Transmission Lines Based on Optimized YOLOv5s," Energies, MDPI, vol. 16(6), pages 1-18, March.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:6:p:2706-:d:1096902
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    References listed on IDEAS

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    1. Zhenbing Zhao & Zhen Zhen & Lei Zhang & Yincheng Qi & Yinghui Kong & Ke Zhang, 2019. "Insulator Detection Method in Inspection Image Based on Improved Faster R-CNN," Energies, MDPI, vol. 12(7), pages 1-15, March.
    2. Jingjing Liu & Chuanyang Liu & Yiquan Wu & Huajie Xu & Zuo Sun, 2021. "An Improved Method Based on Deep Learning for Insulator Fault Detection in Diverse Aerial Images," Energies, MDPI, vol. 14(14), pages 1-19, July.
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    Cited by:

    1. Zhuoya Wang & Liangliang Hao & Zemin Wang, 2024. "Short-Circuit Current Calculation of Flexible Direct Current Transmission Lines Considering Line Distribution Parameters," Energies, MDPI, vol. 17(15), pages 1-15, August.
    2. Hongbo Zou & Jinlong Yang & Jialun Sun & Changhua Yang & Yuhong Luo & Jiehao Chen, 2024. "Detection Method of External Damage Hazards in Transmission Line Corridors Based on YOLO-LSDW," Energies, MDPI, vol. 17(17), pages 1-20, September.
    3. Elisavet Bellou & Ioana Pisica & Konstantinos Banitsas, 2024. "Aerial Inspection of High-Voltage Power Lines Using YOLOv8 Real-Time Object Detector," Energies, MDPI, vol. 17(11), pages 1-16, May.

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