Title: Modelling behaviour of cyber-physical system and verifying its safety based on algebra of event

Authors: Mingfu Tuo; Cheng Zhou; Zhonghai Yin; Xin Zhao; Lei Wang

Addresses: School of Computer Science and Engineering, Northwestern Polytechnical University, Xi'an, China; Air Force Engineering University, Xi'an, China ' School of Science, Air Force Engineering University, Xi'an, China ' School of Science, Air Force Engineering University, Xi'an, China ' School of Science, Air Force Engineering University, Xi'an, China ' School of Science, Air Force Engineering University, Xi'an, China

Abstract: In cyber-physical system, computing unit and physical process are usually integrated deeply. This brings great difficulty for modelling cyber-physical system and verifying its properties. We propose algebra of events (AOE) to describe the process of composite events in complex event process. Then, we present an extended hybrid automata based on AOE. It can describe the transition among several states through actuator in CPS better. At last, we model the lunar rover by the extended hybrid automata. The simulation based on this model is introduced to verify the correctness and performance. Simulation result shows that the lunar rover can walk autonomously and safely.

Keywords: cyber-physical system; event-driven; modelling; verification; lunar rover.

DOI: 10.1504/IJIIDS.2018.091994

International Journal of Intelligent Information and Database Systems, 2018 Vol.11 No.2/3, pp.169 - 185

Received: 02 Sep 2017
Accepted: 29 Oct 2017
Published online: 24 May 2018 *

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