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Exploiting Job Response-Time Information in the Co-Design of Real-Time Control Systems
Lund University, Sweden.
Lund University, Sweden.
Lund University, Sweden.
Scuola Superiore Sant’Anna, Italy.
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2015 (English)In: 2015 IEEE 21ST INTERNATIONAL CONFERENCE ON EMBEDDED AND REAL-TIME COMPUTING SYSTEMS AND APPLICATIONS, Institute of Electrical and Electronics Engineers (IEEE), 2015, 247-256 p.Conference paper (Refereed)
Abstract [en]

We consider a real-time system of multiple tasks, each task having a plant to control. The overall quadratic control cost is to be optimized. We exploit the periodicity of the task response time, which corresponds to a periodic delay pattern in the feedback control loop. Perturbed periods are used as a tool to find a finite hyper period. We present an analytical procedure to design a periodic linear-quadratic-Gaussian (LQG) controller for tasks with fixed execution times as well as a numerical solution to the periodic -- stochastic LQG problem for tasks with variable execution times. The controllers are evaluated using simulations in real-time scheduling and control co-design examples.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2015. 247-256 p.
Series
, IEEE International Conference on Embedded and Real-Time Computing Systems and Applications, ISSN 1533-2306
National Category
Computer Science
Identifiers
URN: urn:nbn:se:liu:diva-124404DOI: 10.1109/RTCSA.2015.23ISI: 000378419800026ISBN: 978-1-4673-7855-0OAI: oai:DiVA.org:liu-124404DiVA: diva2:898580
Conference
2015 IEEE 21st International Conference on Embedded and Real-Time Computing Systems and Applications, 19-21 Aug. 2015 Hong Kong
Available from: 2016-01-28 Created: 2016-01-28 Last updated: 2016-07-29

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Tanasa, Bogdan
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Department of Computer and Information ScienceFaculty of Science & Engineering
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ReferencesLink to record
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