Energy Consumption Optimal Design of Power Grid Inspection Trajectory for UAV Mobile Edge Computing Node

The inspection of transmission equipment by UAV has become an indispensable daily operation and maintenance method for overhead transmission lines. The passive sensors installed on the power transmission equipment needs to complete all its data calculation tasks within a given period of time, and needs to store a certain amount of energy to maintain its normal operation afterwards. During the inspection work, the UAV provides energy for the sensor device, and calculates the data uploaded by the sensor device, and returns the result to the sensor after the calculation is completed. Aiming at the problem of limited UAV energy and short working time, this paper proposes a optimization problem through joint optimization of UAV trajectory, sensor data unloading, sensor wireless energy transmission and other factors. According to convex optimization theory, this optimization problem can be solved based on successive convex approximation (SCA) theory. Compared with the benchmark algorithm, the UAV obtained by the optimization plan in this paper has the lowest flight energy consumption, and as time increases, the advantages of the optimization plan in this paper become more obvious. The algorithm proposed in this paper effectively reduces the energy consumption of the UAV during the execution of the mission and improves the efficiency of the UAV inspection.