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Safe-WirelessHART: A Novel Framework Enabling Safety-Critical Applications over Industrial WSNs
Beijing Jiatong University, China.
Beijing Jiatong University, China.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Systems and Technology. (Communication Systems and Networks (CSN))
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Systems and Technology. (Communication Systems and Networks (CSN))ORCID iD: 0000-0003-0873-7827
2018 (English)In: IEEE Transactions on Industrial Informatics, ISSN 1551-3203, E-ISSN 1941-0050Article in journal (Refereed) Published
Abstract [en]

Industrial wireless sensor networks (IWSNs) have mainly been used to monitor applications, but recently an interest in control and safety applications has emerged. Functional safety and communication in open transmission systems have been laid down in the IEC 61784-3-3 standard. The standard is based on acyclic polling mechanism, which consumes a considerable amount of bandwidth; since existing IWSNs are very resource-constrained this becomes a major challenge. To overcome this problem, this paper proposes a novel framework that uses an event-triggered failsafe mechanism based on synchronous wired polling and wireless time-slotted time division multiple access (TDMA). We analytically derive the minimum and maximum bound for the most important metric for safety-critical applications, SafetyFunction Response Time (SFRT). A new metric, Normal State Interrupt Time (NSIT), is proposed in this paper. Furthermore, we also implement the proposed framework by using the WirelessHART standard. The results are compared to the classical time-triggered approach used in the IEC 61784-3-3standard. The obtained results show that the proposed framework can reduce the bandwidth usage by 90% and support safety-critical applications that require a SFRT less or equal to 150 ms.

Place, publisher, year, edition, pages
2018.
Keyword [en]
IWSN, Safety, Reliability, SFRT, IEC 61784-3-3.
National Category
Communication Systems Computer Engineering
Identifiers
URN: urn:nbn:se:miun:diva-33558DOI: 10.1109/TII.2018.2829899OAI: oai:DiVA.org:miun-33558DiVA, id: diva2:1203700
Projects
TIMELINESSASISSMART
Funder
Knowledge FoundationEuropean Regional Development Fund (ERDF)
Available from: 2018-05-04 Created: 2018-05-04 Last updated: 2018-05-04

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CiteExportLink to record
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  • apa
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