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The most of Chinese high-speed railway lines are using CTCS-3 train control system to ensure the safety of the train. In the CTCS-3 train control system, the way of the location for on-board equipment is different from the ground equipment. The way of location for on-board equipment is based on the balise positioning and speed transmitter, but the ground equipment is based on the track circuit. Due...
Potential faults in safety critical systems may lead to system failures thus bring huge human injuries. How to ensure the correctness of the system during the system development is very important. System function testing has been regarded as an effective approach which normally applied in the final stage of system development to ensure the consistence of system functions and specifications. In this...
This In this paper a stochastic automation networks (SANs) model for the computing the availability of communication based train control (CBTC) system is developed, which captures the lossy radio communication link and the transmission procedures based on 802.11 protocols. A scaled generalized minimum residual (SGMRES) iterative method is provided to reduce the ill-condition of steady-state equation...
This paper analyses the function and performance of the software of RBC (Radio Block Center) subsystem in CTCS (Chinese Train Control System) level 3. It describes the formalization of RBC subsystem based on the theory of Timed automata. EQRS timed automata network model is built and based on the simulation and analysis of RBC subsystem, the safety and BoundedLiveness of RBC is validated using UPPAAL...
The next few years will see distributed real-time computer systems playing an important role in control systems of high-dependability applications, such as rail transportation. In these applications a failure in the temporal domain can be as critical as a failure in the value domain. In rail transportation, train control system has become more complex and the methods to ensure its correctness of have...
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