Test train fixed-point parking early warning braking device

The invention discloses a test train fixed-point parking early warming braking device. The test train fixed-point parking early warming braking device comprises a ground infrared emitter and vehicle-mounted equipment, wherein the ground infrared emitter comprises an infrared emitting frequency microcontroller, a pulse modulation unit and an infrared emitting unit; the vehicle-mounted equipment comprises a vehicle-mounted infrared sensor, a vehicle sensing signal processing unit and a parking early warning and braking control unit. The device is based on an infrared communication and sensing technology. When a subway vehicle enters a braking monitoring early warning point and a braking monitoring construction point, the positions of the subway vehicle, the early warning point and the construction point are determined by detecting a preset ground infrared emitter through the vehicle-mounted infrared sensor, each detected early warning point and braking construction point are identified, and the running speed of a current train is tested according to the distances among positioning points on the ground, so that parking early warning can be performed for a driver of an over-speed train intelligently and accurately according to the running speed of the train, the train can be even braked emergently, and the dynamic debugging test risk of a subway is avoided.