Automatic positioning method and system for walking of bridge crane trolley in large hydropower station workshop

The invention discloses an automatic walking positioning method for a bridge crane trolley in a large hydropower station workshop. The automatic walking positioning method comprises the steps that a crane working area is divided into X, Y and Z directions; an operation instruction is input to enable the bridge crane trolley to walk towards a target position, speed regulation control is achieved for acceleration and deceleration in the walking process through a fuzzy control strategy, and the walking position is detected in real time in the walking process and fed back to a position control system; after reaching a reasonable position, the walking mechanism starts to decelerate to enter a crawling speed area, at the moment, an operator is responsible for parking, and finally accurate positioning of the walking mechanism is completed. Accurate position data of operation of the bridge crane are automatically collected, monitored and analyzed, swinging of a heavy object in the hoisting process is effectively redu