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Achieving elementary cycle synchronization between masters in the flexible time-triggered replicated star for ethernet
DMI, Universitat de les Illes Balears, Spain.
DMI, Universitat de les Illes Balears, Spain.
DMI, Universitat de les Illes Balears, Spain.
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems.ORCID iD: 0000-0002-4987-7669
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2014 (English)In: 19th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2014, 2014, Article number 7005335- p.Conference paper, Published paper (Refereed)
Abstract [en]

For a distributed embedded system (DES) to operate continuously in a dynamic environment, it must be flexible and highly reliable. This applies in particular to its communication subsystem. The Flexible Time-Triggered Replicated Star for Ethernet (FTTRS) aims at providing such a subsystem by means of a highly-reliable switched-Ethernet architecture based on the Flexible Time-Triggered paradigm (FTT), a master/slave communication paradigm where the master periodically polls the slaves using so-called trigger messages (TMs). In particular, FTTRS interconnects nodes by redundant communication paths provided by two switches, each embedding an FTT master that manages the communication. This allows FTTRS to tolerate the failure of one switch without interrupting the communication as long as the masters are replica determinate, i.e., provide identical service to the slaves. The master replica determinism entails the masters broadcasting their TMs in a lockstep fashion: when one master broadcasts a TM, the other should do the same quasi-simultaneously. In this paper we present a solution inspired by the Precision Time Protocol (PTP) for achieving this lockstep transmission and preliminary results showing the precision with which we can synchronize the masters on a software prototype.

Place, publisher, year, edition, pages
2014. Article number 7005335- p.
Keyword [en]
Factory automation, Locks (fasteners), Software prototyping, Stars, Architecture-based, Communication paradigm, Communication path, Communication subsystems, Distributed embedded system, Dynamic environments, Precision time protocols, Switched ethernet, Ethernet
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-27931DOI: 10.1109/ETFA.2014.7005335ISI: 000360999100286Scopus ID: 2-s2.0-84946688820ISBN: 9781479948468 (print)OAI: oai:DiVA.org:mdh-27931DiVA: diva2:809167
Conference
19th IEEE International Conference on Emerging Technologies and Factory Automation, ETFA 2014, 16 September 2014 through 19 September 2014
Available from: 2015-04-30 Created: 2015-04-30 Last updated: 2016-01-18Bibliographically approved

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CiteExportLink to record
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Citation style
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