Optimal On-line Sampling Period Assignment for Real-Time Control Tasks Based on Plant State Information
(2005) 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05 p.4469-4474- Abstract
- The paper presents a feedback scheduling strategy for multiple control tasks that uses feedback from the plant states to distribute the computing resources optimally among the tasks. Linear-quadratic controllers are analyzed, and expressions relating the expected cost to the sampling period and the plant state are derived and used for on-line sample-rate adjustments. In the case of minimum-variance control of multiple integrator processes, an exact expression for the optimal sampling periods is obtained. For the general case, an on-line optimization procedure is developed. The approach is exemplified on a set of controllers for first-order systems. The issues of computational delay and the choice of the feedback scheduler period are also... (More)
- The paper presents a feedback scheduling strategy for multiple control tasks that uses feedback from the plant states to distribute the computing resources optimally among the tasks. Linear-quadratic controllers are analyzed, and expressions relating the expected cost to the sampling period and the plant state are derived and used for on-line sample-rate adjustments. In the case of minimum-variance control of multiple integrator processes, an exact expression for the optimal sampling periods is obtained. For the general case, an on-line optimization procedure is developed. The approach is exemplified on a set of controllers for first-order systems. The issues of computational delay and the choice of the feedback scheduler period are also discussed. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/535764
- author
- Henriksson, Dan LU and Cervin, Anton LU
- organization
- publishing date
- 2005
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Plant state information, Linear-quadratic controllers, Multiple control tasks
- host publication
- Proceedings of the 44th IEEE Conference on Decision and Control and the 2005 European Control Conference
- pages
- 4469 - 4474
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- conference name
- 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05
- conference location
- Seville, Spain
- conference dates
- 2005-12-12 - 2005-12-15
- external identifiers
-
- wos:000240653704052
- scopus:33847209916
- ISBN
- 0-7803-9568-9
- DOI
- 10.1109/CDC.2005.1582866
- language
- English
- LU publication?
- yes
- id
- 5c8e662e-0879-4998-8496-3d3afa6222f2 (old id 535764)
- date added to LUP
- 2016-04-04 12:15:40
- date last changed
- 2022-03-16 00:35:18
@inproceedings{5c8e662e-0879-4998-8496-3d3afa6222f2, abstract = {{The paper presents a feedback scheduling strategy for multiple control tasks that uses feedback from the plant states to distribute the computing resources optimally among the tasks. Linear-quadratic controllers are analyzed, and expressions relating the expected cost to the sampling period and the plant state are derived and used for on-line sample-rate adjustments. In the case of minimum-variance control of multiple integrator processes, an exact expression for the optimal sampling periods is obtained. For the general case, an on-line optimization procedure is developed. The approach is exemplified on a set of controllers for first-order systems. The issues of computational delay and the choice of the feedback scheduler period are also discussed.}}, author = {{Henriksson, Dan and Cervin, Anton}}, booktitle = {{Proceedings of the 44th IEEE Conference on Decision and Control and the 2005 European Control Conference}}, isbn = {{0-7803-9568-9}}, keywords = {{Plant state information; Linear-quadratic controllers; Multiple control tasks}}, language = {{eng}}, pages = {{4469--4474}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, title = {{Optimal On-line Sampling Period Assignment for Real-Time Control Tasks Based on Plant State Information}}, url = {{https://lup.lub.lu.se/search/files/5964964/625578.pdf}}, doi = {{10.1109/CDC.2005.1582866}}, year = {{2005}}, }