SYSTEM FOR ACCURATE TRAIN STOP AND INTERLOCK IN AUTOMATIC TRAIN STOP MODE, BY USING SENSORS AND FIXED OSCILLATORS

摘要

PURPOSE: A system is provided to accurately stop a train at a predetermined position by using sensors and fixed oscillators. CONSTITUTION: A system comprises an indicator lamp set(10), a first sensor(S1), a second sensor(S2), a control unit, a first fixed oscillator(20), and a second fixed oscillator(30). The indicator lamp set includes a forward lamp, a rearward lamp, a platform screen door(PSD) open lamp, and a start lamp. The first sensor is spaced apart from the indicator lamp set in the direction opposite to a train advancing direction, and outputs on/off signals in accordance with the position of the train. The second sensor is spaced apart from the first sensor in the direction opposite to the train advancing direction, and outputs on/off signals in accordance with the position of the train. The control unit detects signals output from the first and second sensors, controls the indicator lamp set to turn on the forward lamp when the first and second sensors output "ON" signals, controls the indicator lamp set to turn on the rearward lamp when the first sensor outputs an "OFF" signal, controls the indicator lamp set to turn on the PSD open lamp and controls a PSD to be opened when the first sensor outputs an "ON" signal and the second sensor outputs an "OFF" signal, controls the PSD to be closed, and controls the indicator lamp set to turn on the start lamp. The first fixed oscillator is spaced apart from the second sensor, and transmits a decelerating code for decelerating a train to a first speed. The second fixed oscillator is spaced apart from the first fixed oscillator, and transmits a decelerating code for decelerating the train to a second speed.