Brake pipe automatic detection method and system based on vehicle-mounted equipment

The invention provides a brake pipe automatic detection method and system based on vehicle-mounted equipment, and the method comprises the steps: obtaining line information of a front interval through a vehicle-mounted equipment host, and searching out a plurality of lines meeting conditions as reference lines; determining a target line according to the starting point position of each reference line and the average gradient information, and taking the starting point position of the target line as a detection position; when the speed of the train meets the corresponding speed detection threshold value requirement and the train runs to the detection position, applying a pressure reduction command, and obtaining the air pressure value of a train head brake pipe and the air pressure value of a train tail brake pipe; when the train speed is lower than the relieving speed or the train runs to the final position of the target line, cancelling the pressure reduction command, and after the brake pipe recovers to the c