Platform door automatic opening and closing control method, device and system

The invention provides a platform door automatic opening and closing control method, device and system, and the method comprises the steps: firstly determining that a train stops at a current platform, collecting the real-time vehicle door point cloud data of the train, and determining the vehicle door motion information of the train based on the real-time vehicle door point cloud data; and then, based on the train door action information of the train, a control instruction is sent to a platform door system, so that the platform door system performs opening and closing control on a platform door corresponding to a train door of the train. According to the method, automatic control over opening and closing of the platform door can be achieved without manual participation, the problem that the platform door and the vehicle door of the high-speed railway and the inter-city railway cannot be linked is solved, the phenomenon that the platform door outside the vehicle range is opened due to vehicle recognition erro