Overview

Electronic Interlocking Device

General

Tunnel Alarm Control System (TACS) is a device that detects trains entering the tunnel while performing field work in the tunnel and sounds an alarm to encourage field workers to evacuate safely.

Related Standard

▪ KRSA-4016 (KR Standard)

Configuration

Main Control Unit
  • Cetral control unit(Dual)
  • Supervision S/W
  • Communication unit
  • Digital I/O board
    • Power
    • CPU
    • DI
    • Communication
    • Supervision
Local Control Unit
  • Digital I/O board
    • Power
    • CPU
    • DI
    • Communication
    • Supervision
  • Communication unit
  • Local switch box
  • Alarm light/Alarm sound

Specifications

Unit Component Specification
Rack 19” Standard Rack
- Main Control Unit		 ▪ It Includes a ventilation fan that can control the internal temperature and a work light for maintenance work.
Device Rack(External Box)
- Local Control Unit		 ▪ Constructed as an outdoor self-supporting type.
▪ Protection level: IP (International Protection) 55
▪ Material: Cold rolled stainless steel (STS)
Communication
Unit		 Switching Hub ▪ Main control unit~Local control unit : Information share.
Optical Transformer ▪ The termination of optical cable is treated as a cluster.
▪ Install an optical distribution box (FDF) between the optical cable and the optical converter.
Central Control
Unit		 CPU Module ▪ All processes of the TACS, input/output scan, logic control and communication functions, redundant system configuration, program storage device (SSD) and communication port configuration.
Software
(Control Program)		 ▪ Receives train operation information through the input module, processes it through the alarm condition process, and then controls the output of the field control panel.
▪ Receives input and output information from the field control panel operated by alarm conditions and transmits it as input data to the monitoring PC.
Digital Input Unit
(Interlocking device/
Track relay input
- Use when needs) 		Power Module(Main & Local) ▪ DC power supply consists of a redundant system.
Process Module(Main & Local) ▪ Perform data communication and change to redundant with communication module and DI module.
Digital Input Module(Main & Local) ▪ Inputs the status information of the TACS and the operation information of the field switch box (16 per module)
Digital Output Module(Local) ▪ Alarm light/alarm sound : control
Communication Module
(Main & Local)		 ▪ Ethernet communication module (Ether Net/IP 10/100Mbp)
Monitoring PC Hardware ▪ Internal Monitor, more than 17” LCD (main control unit integrated type )
▪ External Monitor, more than 24” LCD (Installtion in maintenance office or worker room)
▪ Industrial computer CPU : more than 3.10GHz, RAM more than 4GB, HDD more than 1TB
Software ▪ Check track occupancy and operation status of TACS
▪ Alarm displayed in case of communication failure or device malfunction

System Layout