Automatic control system of agricultural machinery based on Beidou navigation

In this paper, the Beidou satellite navigation system based on the establishment of Beidou Positioning base station, select the cloud platform RTK forwarding mode, using ARM9 processor as the main controller, through the PID to adjust the output control signal, sending CAN communication instructions to control the hydraulic system to complete the intelligent agricultural machinery automatic control, and realize the visualization of automatic route, the intelligent agricultural planning work according to the completion of the cruise route.