Overview

Track Circuit Level Detector System (TLDS)

General

Track Circuit Level Detector System (TLDS) aims for maintaining the performance of AF Track Circuit equipments and other signaling devices (signal, point machine, etc.), preventing potential failures and performing preventive maintenance. The system collects continuously the data such as the operating voltage/current, special status and etc of AF Track Circuit equipments and other signaling devices installed at each station and analyzes them in real time and then provides information so as to prevent failures in advance.

Devices to be Monitored

  • Audio Frequency
    Track Circuit Equipment
  • Impulse Track Circuit
    Equipment
  • Block System
  • Signal
  • Point Machine
  • Interlocking System
  • ATC/ATO System
  • Other Devices

Configuration

  • TLDSTrack Circuit Level Detector System
  • MCCMonitoring Console at Center
  • MCLMonitoring Console at Site
  • DCACData Collecting and Analyzing Cabinet

Function

Detection of the voltage level of transmitter and receiver of Audio Frequency Track Circuit equipment

Track Circuit Level Detector System displays and records the train occupancy information and the voltage value of transmitter and receiver of Audio Frequency Track Circuit equipment in real time. Train trace logic is adopted so that the maintenance staff can easily identify fault status and location (transmitter, receiver, track).

Monitoring of signaling devices

Track Circuit Level Detector System can monitor the status of Interlocking systems and signaling devices in real time and provide an advance warning to prevent accidents. It can display the operation and fault status of each signaling device to provide an overall view of the entire system operation and enables to review the status and history of individual signaling device. It is possible for Track Circuit Level Detector System to set up an integrated monitoring system which can monitor other auxiliary facilities such as power supply units, utility devices and building automation devices in the equipment room.

System configuration