Overview

ATC System

General

Automatic Train Control System is composed of ground equipments and on-board equipments. The ground equipments transmit the speed information which is necessary for safe operation of train to the on-board equipments (computer) continuously through rails so as to display the allowable speed on the driver's screen. ATC System performs deceleration control automatically when the operating speed exceeds the allowable speed.

Features

  • ▪ Generate ATC signal to be transmitted to on-board equipments (including signal detecting train)
  • ▪ Track Relay will be operated by the information received for train detection
  • ▪ ATC signal aspect is output by calculating TR conditions of the section in front of block section
  • ▪ In case of ATC-SR-C Type, signal aspects are controlled directly from an interlocking system
  • ▪ ATC Signals are transmitted only when train is detected on the section and the signal detecting train is transmitted when train is not detected on the section
  • ▪ In order to operate bidirectional, transmission and reception will be switched and the carrier frequency per direction will also be switched