Co-simulation of Distributed Embedded Real-Time Control Systems


Verhoef, M. and Visser, P.M. and Hooman, J. and Broenink, J.F. (2007) Co-simulation of Distributed Embedded Real-Time Control Systems. In: J. Davies & J. Gibbons (Eds.), Integrated Formal Methods, IFM2007. Lecture Notes in Computer Science, 4591 . Springer Verlag, London, pp. 639-658. ISBN 9783540732099

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Abstract:Development of computerized embedded control systems is difficult because it brings together systems theory, electrical engineering and computer science. The engineering and analysis approaches advocated by these disciplines are fundamentally different which complicates reasoning about e.g. performance at the system level. We propose a lightweight approach that alleviates this problem to some extent. An existing formal semantic framework for discrete event models is extended to allow for consistent co-simulation of continuous time models from within this framework. It enables integrated models that can be checked by simulation in addition to the verification and validation techniques already offered by each discipline individually. The level of confidence in the design can now be raised in the very early stages of the system design life-cycle instead of postponing system-level design issues until the integration and test phase is reached. We demonstrate the extended semantic framework by co-simulation of VDM++ and bond-graph models on a case study, the level control of a water tank.
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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