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Event-Triggered and Self-Triggered Control

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Encyclopedia of Systems and Control

Abstract

Recent developments in computer and communication technologies have led to a new type of large-scale resource-constrained wireless embedded control systems. It is desirable in these systems to limit the sensor and control computation and/or communication to instances when the system needs attention. However, classical sampled-data control is based on performing sensing and actuation periodically rather than when the system needs attention. This article discusses event- and self-triggered control systems where sensing and actuation is performed when needed. Event-triggered control is reactive and generates sensor sampling and control actuation when, for instance, the plant state deviates more than a certain threshold from a desired value. Self-triggered control, on the other hand, is proactive and computes the next sampling or actuation instance ahead of time. The basics of these control strategies are introduced together with references for further reading.

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Acknowledgements

The work of Maurice Heemels was partially supported by the Dutch Technology Foundation (STW) and the Dutch Organization for Scientific Research (NWO) under the VICI grant “Wireless controls systems: A new frontier in automation”. The work of Karl Johansson was partially supported by the Knut and Alice Wallenberg Foundation and the Swedish Research Council. Maurice Heemels and Karl Johansson were also supported by the European 7th Framework Programme Network of Excellence under grant HYCON2-257462. The work of Paulo Tabuada was partially supported by NSF awards 0834771 and 0953994.

Author information

Authors and Affiliations

  1. Department of Mechanical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands

    W.P.M.H. Heemels

  2. ACCESS Linnaeus Center, Royal Institute of Technology, Stockholm, Sweden

    Karl H. Johansson

  3. Department of Electrical Engineering, University of California, Los Angeles, CA, USA

    Paulo Tabuada

Authors
  1. W.P.M.H. Heemels
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  2. Karl H. Johansson
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  3. Paulo Tabuada
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Editor information

Editors and Affiliations

  1. Mechanical Engineering, Electrical and Computer Engineering, Boston University, Boston, MA, USA

    John Baillieul

  2. Honeywell Automation and Control Solutions, Golden Valley, MN, USA

    Tariq Samad

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© 2015 Springer-Verlag London

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Heemels, W., Johansson, K.H., Tabuada, P. (2015). Event-Triggered and Self-Triggered Control. In: Baillieul, J., Samad, T. (eds) Encyclopedia of Systems and Control. Springer, London. https://doi.org/10.1007/978-1-4471-5058-9_97

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