Abstract
The inspection and maintenance of power distribution network are crucial for efficiently delivering electricity to consumers. Due to the high voltage of power distribution network lines, manual live-line operations are difficult, risky, and inefficient. This paper researches a Power Distribution Network Live-line Operation Robot (PDLOR) with autonomous tool assembly capabilities to replace humans in various high-risk electrical maintenance tasks. To address the challenges of tool assembly in dynamic and unstructured work environments for PDLOR, we propose a framework consisting of deep visual-guided coarse localization and prior knowledge and fuzzy logic driven deep deterministic policy gradient (PKFD-DPG) high-precision assembly algorithm. First, we propose a multiscale identification and localization network based on YOLOv5, which enables the peg-hole close quickly and reduces ineffective exploration. Second, we design a main-auxiliary combined reward system, where the main-line reward uses the hindsight experience replay mechanism, and the auxiliary reward is based on fuzzy logic inference mechanism, addressing ineffective exploration and sparse reward in the learning process. In addition, we validate the effectiveness and advantages of the proposed algorithm through simulations and physical experiments, and also compare its performance with other assembly algorithms. The experimental results show that, for single-tool assembly tasks, the success rate of PKFD-DPG is 15.2% higher than the DDPG with functionized reward functions and 51.7% higher than the PD force control method; for multip-tools assembly tasks, the success rate of PKFD-DPG method is 17% and 53.4% higher than the other methods.
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The codes and datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
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Acknowledgements
This work was supported by the National Key R &D Program of China (Grant number:2018YFB1307400) and State Grid Anhui Science and Technology Project.
Funding
This work was supported by the National Key R &D Program of China (Grant numbers[2018YFB1307400]).
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Li Zheng:Conceptualization, Methodology, Software, Validation, Data curation, Writing- Original draft preparation, Investigation. Jiajun Ai: Conceptualization, Data curation. Xuming Tang: Resources, Data curation. Shaolei Wu: Resources, Data curation. Sheng Chen: Resources, Data curation. Rui Guo: Resources, Data curation. Erbao Dong: Supervision, Writing- Reviewing and Editing. All authors read and approved the final manuscript.
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Zheng, L., Ai, J., Wang, Y. et al. Deep Visual-guided and Deep Reinforcement Learning Algorithm Based for Multip-Peg-in-Hole Assembly Task of Power Distribution Live-line Operation Robot. J Intell Robot Syst 110, 77 (2024). https://doi.org/10.1007/s10846-024-02079-2
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DOI: https://doi.org/10.1007/s10846-024-02079-2