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

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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.

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Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Reglerteknik
Originalspråkengelska
Titel på värdpublikation2015 IEEE 21st International Conference on Embedded and Real-Time Computing Systems and Applications (RTCSA 2015)
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
ISBN (tryckt)9781467378567
StatusPublished - 2015
PublikationskategoriForskning
Peer review utfördJa
Evenemang21th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications - Hong Kong, Kina
Varaktighet: 2015 aug 19 → …

Konferens

Konferens21th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications
LandKina
OrtHong Kong
Period2015/08/19 → …

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