Title :
Schedulability analysis of server-based error-recovery mechanisms for time-triggered systems
Author :
Marques, Lino ; Vasconcelos, Veronica ; Pedreiras, Paulo ; Almeida, Luis
Author_Institution :
Inst. de Telecomun., Inst. Politec. de Coimbra, Coimbra, Portugal
Abstract :
Distributed Embedded Systems are subject to transient communication faults that need being detected and mitigated in safety-critical scopes. This paper addresses error recovery in time-triggered systems based on the Controller Area Network (CAN). It extends a recent work that proposed using online traffic scheduling, combined with servers, to implement dynamic message retransmissions. In particular, we provide a schedulability analysis that considers the interference of the error-recovery server in the time-triggered traffic, as well as a methodology to compute the worst-case response time of messages affected by errors. We also present a comparison with related error-recovery methods that confirms the superiority of the proposed method.
Keywords :
controller area networks; distributed processing; embedded systems; scheduling; CAN; controller area network; distributed embedded systems; dynamic message retransmissions; error-recovery server; online traffic scheduling; safety-critical scopes; schedulability analysis; server-based error-recovery mechanisms; time-triggered systems; worst-case response time; Bandwidth; Interference; Real-time systems; Reliability; Servers; Time factors; Transient analysis;
Conference_Titel :
Emerging Technologies & Factory Automation (ETFA), 2013 IEEE 18th Conference on
Conference_Location :
Cagliari
Print_ISBN :
978-1-4799-0862-2
DOI :
10.1109/ETFA.2013.6648087