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Analyzing Safety in Collaborative Cyber-Physical Systems: A Platooning Case Study

Authors:
Manzoor Hussain
Nazakat Ali
Youngjae Kim
Jang-Eui Hong

Keywords: Cyber-Physical Systems; Hazard analysis; Platooning System; Safety Verification

Abstract:
Collaborative Cyber-Physical Systems (CCPS) are those systems in which several Cyber-Physical Systems (CPSs) collaborate to achieve a common goal. However, safety verification for collaborative CPSs is a significant challenge. The challenges occur due to unexpected operating conditions which are, by definition, unknown at development time or due to the lack of composite hazard analysis for collaborative CPSs. In this paper, we present an approach to perform safety analysis for collaborative CPSs by introducing an enhanced Fault Traceability and Propagation Graph based on composite hazard analysis. This graph enables to determine the fault source, propagation scope and required safety guards to mitigate the faults. We use the platooning system as a case study and modify the original VEhicular NeTwork Open Simulator (VENTOS) to verify safety for the platooning driving system in a variable environment (an unexpected event). Our simulation results show that after applying our defined safety guards, all the member vehicles in platoon managed to avoid the collision.

Pages: 16 to 22

Copyright: Copyright (c) IARIA, 2021

Publication date: April 18, 2021

Published in: conference

ISSN: 2519-8394

ISBN: 978-1-61208-843-3

Location: Porto, Portugal

Dates: from April 18, 2021 to April 22, 2021