SYSTEM FOR CONTROLLING DOOR FOR CITY TRAIN CAR

摘要

PURPOSE: A system for controlling a door for a city train car is provided to secure the safety of a passenger by controlling the opening and closing of a door having a trouble and to improve the maintenance efficiency by automatically recording the malfunction history. CONSTITUTION: A door control unit comprises a main and an auxiliary CPUs(Central Processing Units), an I/O(Input/Output) device, a sensor signal processor, a sensor, a display device, and an I/O relay. The door control unit is electrically connected with a solenoid valve of a door engine. If an open signal is transmitted from a cab, the open signal is applied to the solenoid valve. Then, a door is opened. If an obstacle signal is transmitted to the I/O device after a close signal is transmitted from the cab, the door control unit transmits an open signal to the solenoid valve. Thus, the door is opened repeatedly.