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Resource Management for Control Tasks Based on the Transient Dynamics of Closed-Loop Systems

Författare:
Publiceringsår: 2006
Språk: Engelska
Dokumenttyp: Konferensbidrag

Sammanfattning

This paper presents a resource management strategy for control tasks

that maximizes control performance within the available resources by

readjusting the task periods at run-time. A feedback scheduler is

used to determine on-line the optimal task periods considering the

response over a finite time horizon of the plants controlled by

arbitrary linear control laws. We show how this problem can be

expressed as an optimization problem, where the objective function

relates the sampling periods to the transient responses of the

controlled plants, and where restrictions are based on EDF

schedulability constraints. For the general case, the solution of

the optimization problem is computationally expensive, and thus, an

approximate procedure to be executed on-line has been developed. We

present simulation results that validate the presented approach.

Nyckelord

  • Control Engineering

Övriga

18th Euromicro Conference on Real-Time Systems
Published

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