By B. Ning
This exact quantity on complex educate keep an eye on platforms (ATCS) involves chosen papers from the hugely profitable COMPRAIL convention sequence on railways and different transit structures. complicated teach keep an eye on platforms are enjoying a huge position in enhancing the potency and safeguard of educate operation, appearing as their "brains and nerves." Computer-based ATCS's make railways extra trustworthy and more secure. regularly, those structures include 4 components: the relevant keep watch over process; 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 conversation. From the viewpoint of the entire lifecycle, an ATCS comprises layout and improvement; re-design for a distinct line software; simulation verification and checking out; and defense evaluate of the approach and subsystems. those innovations are recognized to those that are accustomed to ordinary ATCS corresponding to ETCS, CTCS for major line railways and CBTC for transit platforms.
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Every subsystem is relatively independent and easier to be designed and implemented. The above division is very helpful for a CBTC system to be analyzed, designed and developed. 3 The key technical issues and interface requirements of CBTC In a CBTC system, the key technical issues can be described as follows. Some of the key technologies are common in every subsystem. The others are relatively independent. The vital computer is one of the core parts in CBTC systems. In SCS, BCS and OCS, there is a vital computer.
It is easy for CBTC to be transited from the present system. The maintenance cost for CBTC is lower since track circuits are removed from the system. The control system of railway network will be towards intelligent, network and comprehensive system, CBTC is as brain and nerve centre of the railway system. Its development and application will be with the direction of railway operation control system . At present, there are CBTC systems from the different company in the world. For example, SELTRAC from Alcatel has been used in SkyTrain in Vancouver in Canada since 1986, in JFK-Airport Light Rail System in the United States since 2003.
Tests performed during daily operation in so-called “shadow mode”: this permits the observation and analysis of the behavior of the system installed in its real-life environment over a long-time period without impact on passenger service. • The implementation of sophisticated migration processes, making it possible to switch from the current mode to driverless operation and back again within the time slots available at night dedicated to testing. 2 Focus on train tracking The simultaneous, safe operation of driver-attended and driverless trains relies on tracking system based on virtual blocks combined with the moving block principle.
Advanced Train Control Systems by B. Ning