Modeling Of An Interoperability Test Bench For
The On-board System Of A Train Control System
Based On Colored Petri Nets
Author(s)
L. Yuan, T. Tang, K. Li & Y. Liu
Abstract
The interoperability of train control systems is an essential feature for high-speed
railways. It must be proven that the on-board system of the train control system
has the ability to allow the safe and uninterrupted movement of each line, which
accomplishes the specified performance. A third-party interoperability test bench
should be built for the customer to test the interoperability of the on-board
systems, which are manufactured by different appliers. In this paper, a formal
model was applied on the design and the verification of the test bench. The
design errors can be detected using this formal model, thus the correctness of
the test bench functionality was ensured. A structured Colored Petri Nets model
was proposed to describe the test bench in the aspects of system, modules and
processes. The model includes three sub-models: test bench, interface and onboard
system. Colored Petri Nets was used for system modeling and
CPN-TOOLS was used to support the simulation and the formal analysis. The
hierarchical modeling method not only reduces the complexity, but also
enhances the reliability and reusability. On the basis of these models, the
architecture, the information flow and the algorithms of the test bench can be
verified during the system design and development. The simulation results
showed that the design errors can be found and some algorithms can be verified
and corrected in the modeling and simulation process.
Keywords: test bench, CPN, formal method, train control system.
Keywords
test bench, CPN, formal method, train control system
Related Book
Other papers in this volume
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