Manipulator multi-objective motion optimization control for high voltage power cable mobile operation robot

In respond to the problem of the manipulator point to point motion planning of power cable mobile operation robot, a trajectory planning method based on joint motion time standardization combined with time contraction factor is proposed in this paper, the joint motion time is selected as an evaluation parameter of joint trajectory performance, and corresponding, the mapping relationship between trajectory performance and different joint motion time is also studied. Based on the research result and combined with the robot kinetics model, a mixing constraint control method of joint position, velocity and acceleration is proposed so as to realize the continuous, smooth, stable and non-collision obstacle avoidance motion optimization under the condition of joint global state constraints during manipulator operation motion. Compared with the traditional algorithm, the improved algorithm has achieved excellent trajectory performance under the premise of ensuring the safety manipulator motion, and this method can also avoid the occurrence of joint motion overshoot, which not only improve the efficiency of joint space motion but also reduce the energy consumption. Finally, the feasibility and effectiveness of the proposed algorithm are verified through simulation experiments and the engineering practicality of the proposed algorithm is verified by the field operation experiments.