RT control scheduling to reduce control performance degrading

Author

Lbertos, P.A. ; Crespo, A. ; Ripoll, I. ; Vallés, M. ; Balbastre, P.

Author_Institution

Dept. of Syst. Eng. & Control, Univ. Politecnica de Valencia, Spain

Volume

5

fYear

2000

fDate

2000

Firstpage

4889

Abstract

In the framework of real-time digital control, two fundamental parameters are defined, the control effort and the control action interval. The first one is related to the strength of the control that, due to the intersampling open-loop control, determines the degrading of performances under unexpected delays. The second one refers to the unavoidable delays in the multitasking environment due to interactions among the tasks. As a consequence, the scheduling policy should consider not only the tasks delays but also their influence in the control loop behavior, being calculated to minimize the overall degrading of performances

Keywords

delays; digital control; multiprogramming; real-time systems; scheduling; RT control scheduling; control action interval; control effort; control loop behavior; control performance degradation reduction; intersampling open-loop control; multitasking environment; overall performance degradation minimization; real-time digital control; task delays; unavoidable delays; Control design; Control systems; Degradation; Delay effects; Digital control; Multitasking; Open loop systems; Processor scheduling; Scheduling algorithm; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 2000. Proceedings of the 39th IEEE Conference on

Conference_Location

Sydney, NSW

ISSN

0191-2216

Print_ISBN

0-7803-6638-7

Type

conf

DOI

10.1109/CDC.2001.914705

Filename

914705