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Safe-WirelessHART: A Novel Framework Enabling Safety-Critical Applications Over Industrial WSNs
Beijing Jiatong University, China.
Beijing Jiatong Univeristy, 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 1941-0050, Vol. 14, no 8, p. 3513-3523Article 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 a cyclic 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. We analytically derive the minimum and maximum bound for the most important metric for safety-critical applications, safety function 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 61784-3-3 standard. 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. Vol. 14, no 8, p. 3513-3523
Keywords [en]
IEC 61784-3-3, industrial wireless sensor network (IWSN), reliability, safety, safety function response time (SFRT)
National Category
Communication Systems Telecommunications Computer Engineering
Identifiers
URN: urn:nbn:se:miun:diva-34344DOI: 10.1109/TII.2018.2829899ISI: 000441446300022Scopus ID: 2-s2.0-85046351437OAI: oai:DiVA.org:miun-34344DiVA, id: diva2:1246267
Projects
ASISSMART (Smarta system och tjänster för ett effektivt och innovativt samhälle)
Funder
Knowledge FoundationAvailable from: 2018-09-07 Created: 2018-09-07 Last updated: 2019-09-09Bibliographically approved

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Xu, YouzhiGidlund, Mikael

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