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Resource Management for Control Tasks Based on the Transient Dynamics of Closed-Loop Systems

Castañé, Rosa; Martí, Pau; Cervin, Anton LU and Henriksson, Dan LU (2006) 18th Euromicro Conference on Real-Time Systems
Abstract
This paper presents a resource management strategy for control tasks

that maximizes control performance within the available resources by

readjusting the task periods at run-time. A feedback scheduler is

used to determine on-line the optimal task periods considering the

response over a finite time horizon of the plants controlled by

arbitrary linear control laws. We show how this problem can be

expressed as an optimization problem, where the objective function

relates the sampling periods to the transient responses of the

controlled plants, and where restrictions are based on EDF

schedulability constraints. For the general case, the solution... (More)
This paper presents a resource management strategy for control tasks

that maximizes control performance within the available resources by

readjusting the task periods at run-time. A feedback scheduler is

used to determine on-line the optimal task periods considering the

response over a finite time horizon of the plants controlled by

arbitrary linear control laws. We show how this problem can be

expressed as an optimization problem, where the objective function

relates the sampling periods to the transient responses of the

controlled plants, and where restrictions are based on EDF

schedulability constraints. For the general case, the solution of

the optimization problem is computationally expensive, and thus, an

approximate procedure to be executed on-line has been developed. We

present simulation results that validate the presented approach. (Less)
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author
organization
publishing date
type
Contribution to conference
publication status
published
subject
conference name
18th Euromicro Conference on Real-Time Systems
external identifiers
  • scopus:33947633063
language
English
LU publication?
yes
id
61865970-333a-40c5-9e89-1b88918480c6 (old id 930358)
date added to LUP
2008-01-15 11:10:59
date last changed
2017-10-22 05:08:58
@misc{61865970-333a-40c5-9e89-1b88918480c6,
  abstract     = {This paper presents a resource management strategy for control tasks<br/><br>
 that maximizes control performance within the available resources by<br/><br>
 readjusting the task periods at run-time. A feedback scheduler is<br/><br>
 used to determine on-line the optimal task periods considering the<br/><br>
 response over a finite time horizon of the plants controlled by<br/><br>
 arbitrary linear control laws. We show how this problem can be<br/><br>
 expressed as an optimization problem, where the objective function<br/><br>
 relates the sampling periods to the transient responses of the<br/><br>
 controlled plants, and where restrictions are based on EDF<br/><br>
 schedulability constraints. For the general case, the solution of<br/><br>
 the optimization problem is computationally expensive, and thus, an<br/><br>
 approximate procedure to be executed on-line has been developed. We<br/><br>
 present simulation results that validate the presented approach.},
  author       = {Castañé, Rosa and Martí, Pau and Cervin, Anton and Henriksson, Dan},
  language     = {eng},
  title        = {Resource Management for Control Tasks Based on the Transient Dynamics of Closed-Loop Systems},
  year         = {2006},
}