Train position detection device, ground neutral section passing control system and control method

The invention provides a train position detection device, a ground neutral section passing control system and a ground neutral section passing control method, and relates to the technical field of neutral section passing, the train position detection device accurately positions the positions and the number of locomotive pantographs through magnetic line deflection, so that the length of a neutral area of the neutral section passing control system only needs to accommodate the locomotive pantographs; in the neutral section passing process of a train, the neutral section passing control system detects the running direction of the train and the position information of a pantograph in real time through a train position detection device; the logic control cabinet is used for receiving a signal sent by the train position detection device and generating a control signal; the valve group control device switches on and off of the switch valve group according to the control signal, power supply conversion between the n