Page 175 - 捷運技術 第35期

捷運技術半年刊 第 35 期 95 年 8 月 167

required in the control room to perform various functions, the integrated operator workstations of
the C3 platform allows the use of a common set of hardware and client applications to be installed.
Operational function at each workstation is controlled by the rights and privileges accorded to the
staff logging in.
This not only facilitates the training and deployment of control room operators, it also
simplifies the maintenance process.

˙Optimised System Architecture
The lowest layer in the system control hierarchy forms part of the OASYS C3 solution. It
would be possible to optimize the design and the use of hardware/application（typically third party
Programable Logical Controller（PLCs）etc.,）at this layer in each station. Different functions
typically provided by various vendors can now the implemented through a common set of front-end
equipment with the removal of the contractual boundaries.
˙Lower Operational Cost

With the integrated C3 concept, the reduction in operational costs is both quantitative and
qualitative. The measurable cost savings would be in the form of lowered carrying costs of spares,
simplified maintenance process and flexibility in the training and deployment of staffs.

With the situation management capability of the OASYS C3 solution, service reliability and
safety level are improved. Service disruptions, and its inconvenience to the traveling public, due to
incidents or emergencies can be better managed and resolved.
˙Lower Project Implementation Cost

The OASYS C3 offers the user a ‘one-stop’ common, control and communication
multi-functional solution which removes the contractual boundaries associated with the
conventional control system model.
Besides allowing the optimization of system design as mentioned earlier, the solution also
simplifies the project implementation process significantly, leading to a reduction in the total project
costs.
Instead of multiple teams managing each aspect of the control room subsystems and associated
applications along the artificial contractual lines, a multi-disciplinary team can be set up to manage
the OASYS C3 solution from a overall design and operational perspective. This not only reduces
the level of manpower needed to be deployed by the owner and the contractor, it also lower the risk
of subsystems’ incompatibilities, and minimizes the number of contractual disputes associated with
large multi-disciplinary projects. Overall the quality of design is also improved.
˙Updated Technologies

Besides the operation-centric focus of the OASYS C3 Solution, it also deploys
‘state-of-the-art’ technologies currently deployed on other applications.
The rail system communication requirements of the solution are supported by a IP
communication IPC infrastructure that supports multi-media applications. This IPC structure is
increasingly used in enterprise network to support voice, video and data transmission. It can not
only support the enterprise data processing application functions, it also provides the necessary
bandwidth for telephony and video applications support services （ video-on-demand, video
conferencing, etc.,）required by the employees.