Anti-collision method of unmanned vehicle, vehicle-mounted device and anti-collision system

The invention discloses an anti-collision method of an unmanned vehicle, a vehicle-mounted device and an anti-collision system, and relates to the technical field of unmanned driving of surface mines. The method comprises the steps: obtaining a vehicle information table, wherein the vehicle information table at least comprises a vehicle identifier and an anti-collision safety circle corresponding to the vehicle identifier; determining a first dynamic anti-collision safety circle of the vehicle and a second dynamic anti-collision safety circle of the surrounding vehicle according to the first current speed of the vehicle, the second current speed of the surrounding vehicle and the vehicle information table; and controling the vehicle to execute corresponding operation by judging the intersection state of the first dynamic anti-collision safety circle of the vehicle and the second dynamic anti-collision safety circle of the surrounding vehicle. By means of the technical scheme, the reasonable driving distance b