Robust Control Compensation Based on Upper Bound Delay in Networked Control Systems

Nikolai Vatanski, Jean-Philippe Georges, Sirkka-Liisa Jämsä-Jounela, E. Rondeau

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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    Recent interest in networked control systems (NCS) has instigated research in
    both communication networks and control. Analysis of NCSs has usually been performed from either the network or the control point of view, but not many papers exist where the analysis of both is done in the same context. In this paper an overall analysis of the networked control system is presented. First, the procedure of obtaining the upper bound delay value for packet transmission in the switched Ethernet network is presented. Next, the obtained delay estimate is utilised in delay compensation for improving the Quality of Performance (QoP) of the control systems. The presented upper bound delay algorithm applies ideas from network calculus theory. For the improvement of QoP, two delay compensation strategies, the Smith predictor based and the robust control based delay compensation strategies, are presented and compared.
    Original languageEnglish
    Title of host publication17th International Symposium on Mathematical Theory of Networks and Systems MTNS, Kyoto, Japan, July 24-28, 2006
    Publication statusPublished - 2006
    MoE publication typeA4 Conference publication


    • networked control systems
    • delay compensation
    • real time systems
    • network calculus


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