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Exploiting Job Response-Time Information in the Co-Design of Real-Time Control Systems

Xu, Yang LU ; Årzén, Karl-Erik LU ; Cervin, Anton LU ; Bini, Enrico and Tanasa, Bogdan (2015) 21th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications In 2015 IEEE 21st International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA 2015)
Abstract
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 hyperperiod. 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.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
2015 IEEE 21st International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA 2015)
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
21th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications
external identifiers
  • Scopus:84962863562
ISBN
9781467378567
DOI
10.1109/RTCSA.2015.23
language
English
LU publication?
yes
id
a024d175-d392-4028-ab47-ff1a002e39e7 (old id 7852878)
date added to LUP
2015-09-04 09:03:12
date last changed
2016-11-27 04:41:15
@misc{a024d175-d392-4028-ab47-ff1a002e39e7,
  abstract     = {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 hyperperiod. 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.},
  author       = {Xu, Yang and Årzén, Karl-Erik and Cervin, Anton and Bini, Enrico and Tanasa, Bogdan},
  isbn         = {9781467378567},
  language     = {eng},
  publisher    = {ARRAY(0xcd253f8)},
  series       = {2015 IEEE 21st International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA 2015) },
  title        = {Exploiting Job Response-Time Information in the Co-Design of Real-Time Control Systems},
  url          = {http://dx.doi.org/10.1109/RTCSA.2015.23},
  year         = {2015},
}