Aiming at the problem that the unmanned aerial vehicle(UAV) inspection method of transmission lines is interfered by environmental factors such as high-frequency signals and radars

which leads to long lines

a UAV inspection method for substation transmission lines based on Beidou high-precision positioning technology is proposed to optimize the UAV inspection effect. Firstly

the Beidou receiving equipment is installed on the UAV to obtain the basic attitude information of the UAV. Secondly

the objective optimization function and constraint conditions are constructed based on the length of the inspection line and the threat degree of the inspection area. Finally

the particle swarm optimization algorithm is used to solve the objective function

search for the optimal path planning

and realize the automatic inspection of the UAV. In order to test the actual inspection effect of the method proposed in this paper

the transmission line construction project managed by a power company is taken as the inspection object

and the inspection task is planned. The results show that when the method proposed in this paper is used to inspect the transmission line

the length of the UAV inspection route is always less than 4 km

and the inspection effect works well.