Anti-collision system of rotor series resistor type bridge crane

The invention relates to an anti-collision system of a rotor series resistor type bridge crane. The anti-collision system of the rotor series resistor type bridge crane comprises a detecting system, acontrol system and a deceleration stopping system. The detecting system comprises laser sensors arranged at the two ends of a large vehicle, and the laser sensors are used for collecting informationof the distance between every two adjacent large vehicles, the distance between the large vehicle and a wall or the distance between the large vehicle and other barriers; the control system is used for receiving the distance information collected by the laser sensors, and safe large vehicle distance and safe barrier distance are preset in the control system; and the deceleration stopping system isused for carrying out deceleration stopping on the large vehicle when the distance between the large vehicle and the barrier is smaller than the deceleration stopping distance. According to the scheme, a contactor transfer is