How It Started
The Malaysian Government has initiated a project for the Electrification of Double Track Project (EDTP) which runs through the northern peninsular of Malaysia. The project involves the laying and electrification of two new 329km long double track to replace the existing single track including new stations, bridges, the electrification of tracks and signalling systems. The project which started in January 2008 and scheduled to complete by 2013.
There are two double-barrel tunnels built as part of the project. These include a 3.3km long tunnel in Bukit Berapit, which is the longest in South-East Asia. This gigantic project (est. investment price RM16.5 bil (~4.1 bil USD)) is operated by KERETAPI TANAH MELAYU Berhad (KTM Berhad) Malaysia. It is the main rail operator in Peninsular Malaysia which had been running since year 1885.
作为该项目的一部分，有两条双管隧道建成。其中包括位于布吉贝拉皮特的一条长3.3公里的隧道，这是东南亚最长的隧道。这个庞大的项目（投资价格为16.5比勒(~4.1比勒美元)）由马来西亚Keretapi Tanah Melayu Berhad(KTM Berhad)经营。它是马来西亚半岛的主要铁路运营商，自1885年开始运营。
It is known to be essential and compulsory to have an accurate monitoring and control system for railway tunnels, not only to ease the operators to have a convenient daily job routine, but also to ensure safety as the first priority. Therefore, in order to ensure full functionality of EDTP project, or more specifically, to provide and prepare the Berapit tunnel in the safest condition for trains to operate continually, Ecava IGX is selected as the SCADA solution to achieve these goals, and thus came out with Bukit Berapit Tunnel Monitoring and Control system (TMCS).
众所周知，铁路隧道必须有一个准确的监控系统，这不仅是为了方便操作人员的日常工作，而且可确保安全为第一要务。因此，为了确保EDTP项目的全部功能，或者更具体地说，为了在最安全的条件下为列车持续运行提供和准备Berapit隧道，为了实现这些目标，选择了Ecava IGX作为SCADA解决方案，从而推出了Bukit Berapit隧道监控系统(TMCS)。
Berapit Tunnel Monitoring and Control System (TMCS) by Ecava IGX
TMCS is implemented to achieve the following goals:
A. To monitor and control of the following systems:
Tunnel Lighting System
Tunnel Ventilation & Cross Passage Pressure Pressurization
Telephone and Emergency Telephone system
Public Address (PA) System
Tunnel CCTV System
Tunnel Access Control System
Tunnel Radio Communication System
B. To provide event / data logging for display and printouts on the following:
Alarm and status monitoring of all tunnel systems and equipment
Monitor and control of tunnel lighting
Monitor and control of tunnel ventilation
Monitor and control of cross passage pressurization
Monitor and control power distribution
Information on plant running and performance (where applicable)
Operational procedures during emergency events
Tunnel access control monitoring
Interface with other equipment (where applicable)
C. To store archives (in raw or CSV format) in hard disk for the purpose of extraction into external storage.
D. To store data up to twelve (12) months period, and perform automated house-keeping for database older than 12 months by using FIFO concept.
The view of Bukit Berapit tunnels from outside along the railways
Ecava IGX Makes Everything Automated
Ecava IGX has equipped a TMCS which is responsible to run automatic control tunnel ventilation system in accordance with the incidents plans programmed (based on emergency and maintenance philosophy). In the meantime, it also continuously monitor the status of tunnel operations and systems.
The security measures are even more strengthened by having Ecava IGX’s alarm automation system. Any abnormal or failure behavior will trigger alarms generation to alert operators, and they will be automatically recorded and can also be printed or exported.
TMCS operates to provide comprehensive management information in the form of historical trends / report, with the purpose to ensure the most accurate assessment of tunnel operating costs which leads to top-level efficiency.
Manual control facilities for tunnel lighting and ventilation are executable from user workstations in accordance with the incidents plans philosophy.
TMCS provides the operational interface for the surveillance and control of the tunnels. There are four (4) TMCS servers installed in multiple cross-states technical control buildings, including one in the Kuala Lumpur central control center. TMCS is designed to allow multiple users access for 24 hours operation purpose by following the best security approaches. Thus, there are three (3) TMCS workstations furnished among those control buildings, which each of them has the same operation interface and functions as TMCS server.
In normal operation, among the four (4) TMCS servers in same network connection, one of them will be promoted as Master to control most of the monitoring, controlling, redundancy and data archiving work. While the rest will act as standby TMCS server. This redundancy is yet another approach to ensure the system availability for all time.
Operator can access TMCS via TMCS servers or workstations in same network connection.
The TMCS is designed based on the use of remote input output units and everything is interconnected via Ethernet TCP/IP private network. All of the system clocks for Operating Systems reside in Servers, Workstations and PLC are synchronized by a Master Clock via Network Time Protocol (NTP).
The TMCS is built as a distributed system with TMCS PLC panels mounted within the tunnel cross passages, and technical control buildings are interconnected by a private LAN (TMCS Network) to the TMCS Servers as well as interfacing with TMCS Workstations.
This system hierarchy is designed to allow local autonomous operation from different control buildings, to ensure the TMCS can be operated despite any communication failure in any of the control rooms.
The TMCS provides a safe, secure and comprehensive tunnel management system that requires minimum staffing level.
Bukit Berapit tunnel ventilation fallback panel
The Hardware / Software:
Server Machine: Dell Power Edge 710 Server
OS: Windows Server 2008 R2 Service Pack 1
Workstation Machine: Dell Precession T3500
OS: Windows 7 Professional Service Pack 1PLC (Programmable Logic Controllers): GE Fanuc type RX3i
Protocol: Modbus TCP/IP
SCADA: Ecava IGX
IO tags: 8192 tags
Redundancy: 4 servers
Remote client: 7 clients
Database: PostgreSQL Database
SCADA Mimics Screenshots:
TMCS by Ecava IGX has been completed and fully implemented back in year 2013 and is currently serves as the strong backbone to support the Berapit tunnels, and ensuring all-time uninterrupted train operation.
TMCS Overall View Mimic
TMCS Ventilation Fallback Panel Mimic