Page 167 - 捷運技術 第35期

捷運技術半年刊 第 35 期 95 年 8 月 159

As organizations gained experience, and with the constant drive for cost and operational
efficiencies, additional demands are placed on IT system for solution. In response, the first
generation of Integrated Supervisory Control System（ISCS）was developed to allow the supervision
of Electrical and Mechanical facilities from a centralized Control Room, with limited localized
supervisory capability at the station level. The Automatic Train Supervision（ATS）System remains
a specialized stand-alone system. The typical ISCS c/s configuration would include hot-standby
central servers with distributed functional operators’ workstations, retrieving and sending data
through Remote Terminal Units（RTUs）using slow serial transmission lines. This allows a certain
level of information sharing, and automated/semi-automated cross-functional applications. For
example, a fire alarm received from a zone can be a trigger to release the emergency escape doors
and activation of signages for the rapid evacuation of passengers.

The next generation of ISCS design was developed to meet the challenges and needs of the
World’s first fully automated, lightly-manned and driverless heavy MRT system. Automation of
routine functions, especially in the real-time dissemination of information to, and the interactions
with passengers anywhere in the system, becomes crucial. For this, a new multi-media approach
needs to be considered. As the demand for information available to the operator increases, the scope
of the ISCS expands to include the integration of communication and ATS functions. This, to a large
extend, removes the ‘silos’ effect of earlier generation of design and allows effective sharing and
use of information, and certain level of decision support. For instance, a traveling passenger could
initiate a multi-media conversation with the operator at the Operation Control Centre（OCC）via the
train-borne intercom and the Closed Circuit Television（CCTV）subsystem.

The latest generation of Control Room solution, more accurately termed the ‘Command,
Control and Communication（C3）System’, not only draws on the experiences gained from previous
control systems’ projects, from both technical and commercial perspectives, but also the re-focusing
of railway operational requirements as the primary enabler of the solution. In this respect, more
advanced tools are required to provide operation assistance in the control rooms, especially in the
management of abnormal incidents.

Recent technological advances in IP communication technology, and IP-enabled devices are
incorporated into the design to provide a cost-effective, operation-enabled ‘one-stop’ solution to
meet the command, control and communication, and maintenance requirements of modern railways.

In a nutshell, the C3 integrated system concept provides the framework for the unrestricted
sharing of data, and business processes among any connected systems and applications, and various
data sources in a typical railway operation. It also provides a standardized and unified product
approach for efficient and cost-effective implementation of a comprehensive command, control and
communication solution for railway systems. Within this framework, Singapore Technologies
Electronics is able to offer an advanced solution named OASYS C3 Solution to cater to the
demands of modern railway operators.