Improved Scheduling of Control Tasks
Cervin, Anton LU
(1999)
11th Euromicro Conference on Real-Time Systems
- Abstract
- The paper considers the implementation of digital controllers as real-time tasks in priority-preemptive systems. The performance of a digital feedback control system depends critically on the timing of its sampling and control actions. It is desirable to minimize the computational delay in the controller, as well as the sampling jitter and the control jitter. It is shown that by scheduling the two main parts of a control algorithm as separate tasks, the computational delay can often be reduced significantly. A heuristic method for assigning deadlines to the parts is presented. Further modifications are given to reduce the jitter and to facilitate delay compensation. The result is improved control performance under maintained schedulability.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8516747
- author
- Cervin, Anton
LU
- organization
- publishing date
- 1999
- type
- Contribution to conference
- publication status
- published
- subject
- conference name
- 11th Euromicro Conference on Real-Time Systems
- conference location
- York, United Kingdom
- conference dates
- 1999-06-09
- external identifiers
-
- scopus:84884634865
- language
- English
- LU publication?
- yes
- id
- 5f1cbe59-07ca-4690-a8d5-d9bad19a8a99 (old id 8516747)
- date added to LUP
- 2016-04-04 14:29:00
- date last changed
- 2022-04-24 06:03:13
@misc{5f1cbe59-07ca-4690-a8d5-d9bad19a8a99,
abstract = {{The paper considers the implementation of digital controllers as real-time tasks in priority-preemptive systems. The performance of a digital feedback control system depends critically on the timing of its sampling and control actions. It is desirable to minimize the computational delay in the controller, as well as the sampling jitter and the control jitter. It is shown that by scheduling the two main parts of a control algorithm as separate tasks, the computational delay can often be reduced significantly. A heuristic method for assigning deadlines to the parts is presented. Further modifications are given to reduce the jitter and to facilitate delay compensation. The result is improved control performance under maintained schedulability.}},
author = {{Cervin, Anton}},
language = {{eng}},
title = {{Improved Scheduling of Control Tasks}},
url = {{https://lup.lub.lu.se/search/files/6370780/8520080.pdf}},
year = {{1999}},
}