By B. Ning
This distinctive quantity on complex teach keep watch over platforms (ATCS) includes chosen papers from the hugely winning COMPRAIL convention sequence on railways and different transit structures. complex educate regulate structures are enjoying a big position in enhancing the potency and safeguard of teach operation, performing as their "brains and nerves." Computer-based ATCS's make railways extra trustworthy and more secure. typically, those platforms encompass 4 elements: the primary keep watch over method; the station keep an eye on structures and wayside structures; the on-board keep an eye on platforms; and the verbal exchange community, together with cellular communique. From the perspective of the complete lifecycle, an ATCS contains layout and improvement; re-design for a different line program; simulation verification and checking out; and defense evaluation of the process and subsystems. those strategies are identified to those that are accustomed to average ATCS comparable to ETCS, CTCS for major line railways and CBTC for transit structures.
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In China, there is the CTCS (Chinese Train Control System). In Northern American and Japan, there are advanced train control systems or moving block systems. However, there is no standard for development and design of CBTC in the world at present. In this paper, efforts are made towards the establishment of a CBTC standard which directs the development and design of CBTC systems. The configuration of CBTC systems is first described. The key technical issues are addressed. The fundamental modular of CBTC and its interface requirements are defined.
The functions of a CBTC system should be distributed to the five subsystems. The data format between every two parts should be defined. The Central Control System (CCS) is the control center of a CBTC system. Train plans and train graphs are generated here. All the train operation is dispatched and commanded in CCS according to train graphs. The state data concerning to station control system (SCS), block control system (BCS), onboard control system (OCS) and train operation should be sent to CCS .
At present, CBTC systems have been applied in light rail network and underground systems in the world. Particularly, when the signaling system is upgraded and the new line is constructed, CBTC is their first choice for train control systems. For example, the New York Metro selected Siemens’s CBTC and Shanghai Metro selected Alstom’s CBTC systems. It is also clear that CBTC will be applied in main line railway network. In Europe, ETCS level 2 has been in trial since 2000 . It is true that transit from traditional train control system to CBTC systems is a long process.
Advanced Train Control Systems by B. Ning