In modern rail transit systems, the efficient operation of automatic doors cannot be achieved without advanced sensor technology. Limit switches and photoelectric sensors are two of the key components, which ensure the safety and smoothness of the train door system through accurate state detection and fast response function. Limit switches are widely used to detect the switching position of shielded doors and train doors, which can accurately feedback the position of the door and ensure the synchronization of various actions, thus preventing incompletely closed doors from posing a safety hazard when the train is started. Photoelectric sensors are commonly used in the train’s internal aisle doors to detect the presence of pedestrians or obstacles by sensing the interruption of the light beam, avoiding the danger of pinching people or objects. With non-contact detection, high-speed response and strong anti-interference capability, these two types of sensors play a vital role in enhancing the safety and efficiency of rail transportation.

In rail transit systems, Telemecanique’s XCMD series of limit switches, XCKD series of limit switches and XUK9 series of photoelectric sensors indirectly safeguard the travel experience of passengers by working in tandem to enhance the safety and efficiency of automatic door control systems.The XCMD series of limit switches is responsible for monitoring the opening and closing status of shielded doors and train car doors, ensuring that the The XCMD series limit switches are responsible for monitoring the opening and closing status of shielded doors and train doors, ensuring that the opening and closing positions of the doors are accurate, thus avoiding the potential risks of incompletely closed doors. The XCKD series limit switches, on the other hand, ensure smooth linkage between the shielding door and the train car door by accurately synchronizing the opening and closing actions of the two, thus avoiding potential safety hazards caused by the lack of synchronization. Meanwhile, XUK9 series photoelectric sensors can detect the presence of pedestrians or obstacles in real time through the beam interruption sensing technology, thus effectively preventing the occurrence of people and objects. Through the precise positioning, intelligent linkage and efficient response of these sensors, the rail transit system safeguards safety while optimizing its automated operation, enhancing overall system reliability and passenger safety.

1.XUK9 Photoelectric Sensor

2.XCMD Limit Switch

3.XCMH Limit Switch

4.XCKD Limit Switch