The Control Server: A Computational Model for Real-Time Control Tasks

Anton Cervin, Johan Eker

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

38 Citations (SciVal)
107 Downloads (Pure)

Abstract

The paper presents a computational model for real-time controltasks, with the primary goal of simplifying the control andscheduling co-design problem. The model combines time-triggered I/Oand inter-task communication with dynamic, reservation-based taskscheduling. To facilitate short input-output latencies, a task maybe divided into several segments. Jitter is reduced by allowingcommunication only at the beginning and at the end of a segment. Akey property of the model is that both schedulability and controlperformance of a control task will depend on the reservedutilization factor only. This enables controllers to be treated asscalable real-time components. The model has been implemented in areal-time kernel and validated in a real-time control application.
Original languageEnglish
Title of host publicationProceedings 15th Euromicro Conference on Real-Time Systems, 2003.
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages113-120
ISBN (Print)0-7695-1936-9
DOIs
Publication statusPublished - 2003

Subject classification (UKÄ)

  • Control Engineering

Keywords

  • real-time application
  • inter-task communication
  • real-time control task
  • control server
  • computational model
  • scheduling problem
  • control performance
  • codesign problem
  • reservation-based scheduling
  • real-time systems
  • processor scheduling
  • task scheduling
  • utilization factor
  • input-output latency

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