A feedback scheduler for real-time controller tasks

The problem studied in this paper is how to distribute computing resources over a set of real-time control loops in order to optimize the total control performance. Two subproblems are investigated: how the control performance depends on the sampling interval, and how a recursive resource allocation...

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Bibliographic Details
Published in:	Control engineering practice Vol. 8; no. 12; pp. 1369 - 1378
Main Authors:	Eker, Johan, Hagander, Per, Årzén, Karl-Erik
Format:	Journal Article
Language:	English
Published:	Elsevier Ltd 01-12-2000
Subjects:	Control Engineering Electrical Engineering, Electronic Engineering, Information Engineering Elektroteknik och elektronik Engineering and Technology Feedback scheduling Linear quadratic control Optimization Real-time Reglerteknik Teknik Linear quadratic control Feedback scheduling Real-time Optimization
Online Access:	Get full text
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Summary:	The problem studied in this paper is how to distribute computing resources over a set of real-time control loops in order to optimize the total control performance. Two subproblems are investigated: how the control performance depends on the sampling interval, and how a recursive resource allocation optimization routine can be designed. Linear quadratic cost functions are used as performance indicators. Expressions for calculating their dependence on the sampling interval are given. An optimization routine, called a feedback scheduler, that uses these expressions is designed.
ISSN:	0967-0661 1873-6939
DOI:	10.1016/S0967-0661(00)00086-1