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Stochastic sensor scheduling with application to networked control
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-9940-5929
2013 (English)In: 2013 American Control Conference (ACC), AACC American Automatic Control Council , 2013, 2325-2332 p.Conference paper, Published paper (Refereed)
Abstract [en]

We consider stochastic sensor scheduling with application to networked control systems. We model sampling instances (in a networked system) using jumps between states of a continuous-time Markov chain. We introduce a cost function for this Markov chain which is composed of terms depending on the average sampling frequencies of the subsystems and the effort needed for changing the parameters of the underlying Markov chain. By extending Brockett's recent contribution in optimal control of Markov chains, we extract an optimal scheduling policy to fairly allocate network resources (i.e., access to the network) among the control loops. We apply this scheduling policy to a networked control system composed of several scalar decoupled subsystems and compute upper bounds for their closed-loop performance. We illustrate the developed results numerically on a networked system composed of several water tanks.

Place, publisher, year, edition, pages
AACC American Automatic Control Council , 2013. 2325-2332 p.
Series
American Control Conference. Proceedings, ISSN 0743-1619
Keyword [en]
Closed-loop performance, Continuous time Markov chain, Networked controls, Networked systems, Optimal scheduling, Sampling frequencies, Scheduling policies, Stochastic sensors
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-133382ISI: 000327210202081Scopus ID: 2-s2.0-8488349950ISBN: 978-147990177-7 (print)OAI: oai:DiVA.org:kth-133382DiVA: diva2:662010
Conference
2013 1st American Control Conference, ACC 2013; Washington, DC; United States; 17 June 2013 through 19 June 2013
Note

QC 20131105

Available from: 2013-11-05 Created: 2013-10-31 Last updated: 2014-01-07Bibliographically approved

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Johansson, Karl Henrik

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf