Pole position detection device for electrified railway contact system detection vehicle

The utility model relates to a pole position detection device for the electrified railway contact system detection vehicle, comprising a data processing computer storing the data base of the information of the circuit pole position, an electrical pole detecting unit arranged on the pantograph of the detection vehicle and data processing systems connected respectively with a range pulse structure which is matched with an axletree and controlled by a speed-sensing device. The data processing system is also provided with a GPS satellite positioning unit connected with the data processing computer. Different working units can check mutually at different angles, so the device can proceed with composite position; accumulative errors and various disturbance of the system position can be adjusted and eliminated. In addition, the track of the stations passed by the detection vehicle can be discriminated, which is meaningful to the detection vehicle.