Electric Power ›› 2020, Vol. 53 ›› Issue (2): 63-68.DOI: 10.11930/j.issn.1004-9649.201808168

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The Safety Monitoring and Warning System for Live Working Based on ToF Technology

LI Wen1,2,3, GU Su1, WANG Zhigang1,2,3, ZHOU Chenmeng4, MAO Dun1,2,3, ZHENG Li5   

  1. 1. Transmission Maintenance Company, Hunan Electric Power Co., Ltd. of SGCC, Hengyang 421000, China;
    2. Hunan Province Key Laboratory of Intelligent Live Working Technology and Equipment (Robot), Changsha 410018, China;
    3. State Grid Co. Laboratory of Live-working Inspection and Intelligent Operation Technology, Changsha 410007,China;
    4. State Grid Hubei Electric Power Company DC Inspection Company, Yichang 410004, China;
    5. State Grid Hunan Electric Power Company, Changsha 410100, China
  • Received:2018-08-30 Revised:2019-03-01 Online:2020-02-05 Published:2020-02-05
  • Supported by:
    This work is supported by Science and Technology Project of State Grid Hunan Electric Power Co., Ltd. (No. 5216A015003H)

Abstract: Aiming at the deficiency of security monitoring and early warning means and methods for live working in China, a ToF (Time of flight)-based real-time safety monitoring and warning system is proposed for live working. The ToF camera is used for real-time 3D reconstruction of the space around working staff, and to obtain the coordinate information of topographic features surrounding the staff for further testing the distance information of staff and nearby objects, and when the distance between the staff and the charged body such as wires exceeds the set value, the alarm system will be triggered to remind the operators. The testing results show that the system can accurately monitor the distances in real time and provide reliably alarms about the dangerous situations.

Key words: live working, time of flight (ToF), safety distance, real-time monitoring, warning system