The rail transit platform screen door system is a comprehensive system integrating architecture, electromechanics, materials, and information technologies. It mainly consists of mechanical and electrical parts, including sliding doors, fixed doors, emergency doors, and other door structures, as well as electrical systems such as power, control, and monitoring. The platform screen door system is designed to effectively separate the track area from the station waiting area, ensuring passenger safety while improving station operational efficiency and creating a more comfortable and energy-efficient waiting environment for passengers. By linking with the train signaling system, the platform screen door system can precisely control the opening and closing of the doors, enabling efficient and safe operations.