By B. Ning
This exact quantity on complicated educate keep an eye on structures (ATCS) includes chosen papers from the hugely profitable COMPRAIL convention sequence on railways and different transit structures. complex educate keep an eye on platforms are enjoying an enormous position in bettering the potency and safeguard of educate operation, appearing as their "brains and nerves." Computer-based ATCS's make railways extra trustworthy and more secure. mostly, those platforms include 4 elements: the significant keep watch over method; the station keep an eye on structures and wayside platforms; the on-board keep an eye on platforms; and the communique community, together with cellular communique. From the viewpoint of the full lifecycle, an ATCS contains layout and improvement; re-design for a different line program; simulation verification and checking out; and defense evaluation of the approach and subsystems. those recommendations are identified to people who are acquainted with normal ATCS resembling ETCS, CTCS for major line railways and CBTC for transit structures.
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Extra resources for Advanced Train Control Systems
Hai Department of Control Engineering, School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing, P. R. China Abstract CBTC (Communication Based Train Control) systems are known as comprehensive, integrated and intelligent control systems for rail systems including mainline railways, light rails and underground lines in cities. With the development of modern data communication, computer and control techniques, CBTC represents the future direction of rail control systems.
There are fifteen channels for data communications and four channels are assigned to the train control with the data transmission rate of 9600 bps. If a channel is used to control a train, only four trains can be controlled by the digital train radio. So the idea of time slots is adopted. A channel is divided twenty-five time slots per a second and the number of the trains controlled by the radio is increased. 2 Outline of the developed system First on-board ATC device of the developed system gets the output of the tachometer-generator and calculates the location of the train at every time period.
In addition, there are also CBTC systems from Japan Signaling, GE and CSEE etc. In the world, there are more than 30 light rail and underground systems where CBTC systems have been or will be applied. According to the statistics, most of the CBTC systems are based on cross-loops for train-ground communication, some of the CBTC systems use radio for train-ground communication. In Europe, Radio system will be used for train control (ETCS-2 and Euro-radio) . Nowadays, when the signaling systems need to be upgraded in many cities, such as London, Paris and New York, CBTC system is chose as a new system.