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RT control scheduling to reduce control performance degrading

By P. A. Lbertos, A. Crespd, I. Ripolw, M. Vallcs and P. Balbastrd


Abstract. In the framework of RT 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

Topics: control delays, scheduling, priority assignment scheme, timing jitter
Year: 2000
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
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