Based on the working task requirements of inspection robot and the characteristics of obstacles on high voltage transmission lines, a novel dual-arm inspection robot is designed by adding the parallel flexible cable into the series-joints arm. According to the obstacle-crossing mechanism of robot and the types of obstacles on the transmission line, two representative control flows for robot obstacle-crossing are provided. The joints' stress states of the robotic arm in representative obstacle-crossing are analyzed by simulation. The simulation results show that the joints' torque of the robotic arm with flexible cable can be decreased obviously and the robotic adaptability to the surroundings of the transmission line obstacles can be improved by mixed rigid-flexible arm design.
[1] Sawada J, Kusumoto K, Maikawa Y, et al. A mobile robot for inspection of power transmission lines[J]. IEEE Transactions on Power Delivery, 1991, 6(1): 309-315. [2] Kobayashi H, Nakamura H, Shimada T. An inspection robot for feeder cables -- Basic structure and control[C]//1991 International Conference on Industrial Electronics, Control and Instrumentation and Automation. Piscataway, NJ, USA: IEEE, 1991: 992-995.[3] Pouliot N, Montambault S. Geometric design of the LineScout: A teleoperated robot for power line inspection and maintenance[C]//IEEE International Conference on Robotics and Automation. Piscataway, NJ, USA: IEEE, 2008: 3970-3977.[4] Toth J, Pouliot N, Montambault S. Field experiences using LineScout technology on large BC transmission crossings[C]//1st International Conference on Applied Robotics for the Power Industry. Piscataway, NJ, USA: IEEE, 2010.[5] Debenest P, Guarnieri M, Takita K, et al. Expliner -- Robot for inspection of transmission lines[C]//IEEE International Conference on Robotics and Automation. Piscataway, NJ, USA: IEEE, 2008: 3978-3984.[6] Wu G P, Xiao H, Xiao X H, et al. Transmission line inspection robot and deicing robot: Key technologies, prototypes and applications[C]//1st International Conference on Applied Robotics for the Power Industry. Piscataway, NJ, USA: IEEE, 2010.[7] 吴功平,曹珩,皮渊,等.高压多分裂输电线路自主巡检机器人及其应用[J].武汉大学学报:工学版,2012,45(1):96-102. Wu G P, Cao H, Pi Y, et al. An autonomous inspection robot for high voltage bundled transmission line and its application[J]. Engineering Journal of Wuhan University, 2012, 45(1): 96-102.[8] 朱兴龙,周骥平,王洪光,等.输电线巡检机器人越障机理与试验[J].机械工程学报,2009,45(2):119-125. Zhu X L, Zhou J P, Wang H G, et al. Experiments and mechanism of obstacle negotiation of an inspection robot for transmission lines[J]. Journal of Mechanical Engineering, 2009, 45(2): 119-125.[9] Wang H G, Jiang Y, Liu A H, et al. Research of power transmission line maintenance robots in SIACAS[C]//1st International Conference on Applied Robotics for the Power Industry. Piscataway, NJ, USA: IEEE, 2010.[10] Wang L D, Liu F, Wang Z, et al. Development of a novel power transmission line inspection robot[C]//1st International Conference on Applied Robotics for the Power Industry. Piscataway, NJ, USA: IEEE, 2010.[11] Lorimer T, Boje E. A simple robot manipulator able to negotiate power line hardware[C]//2nd International Conference on Applied Robotics for the Power Industry. Piscataway, NJ, USA: IEEE, 2012.[12] Wang J D, Sun A Q, Su W, et al. Development of an expert control strategy for controlling obstacle crossing of a high-voltage transmission line inspection robot[C]//18th International Conference on Automation & Computing. Washington, USA: IEEE Computer Society, 2012: 285-289.[13] 杨德伟,冯祖仁,张翔.新型三臂巡线机器人机构设计及运动分析[J].西安交通大学学报,2012,46(9):43-48. Yang D W, Feng Z R, Zhang X. Mechanism design and kinematic analysis of a novel tribrachiation robot for transmission line inspection[J]. Journal of Xi'an Jiao Tong University, 2012, 46(9): 43-48.[14] Guo R, Zhang F, Cao L, et al. A mobile robot prototype for inspection of overhead bundled conductors[C]//2nd International Conference on Applied Robotics for the Power Industry. Piscataway, NJ, USA: IEEE, 2012.[15] 訾斌,段宝岩,杜敬利.柔索驱动并联机器人动力学建模与数值仿真[J].机械工程学报,2007,43(11):82-88. Zi B, Duan B Y, Du J L. Dynamic modeling and numerical simulation of cable-driven parallel manipulator[J]. Journal of Mechanical Engineering, 2007, 43(11): 82-88.
