Encoder-decoder design for event-triggered feedback control over bandlimited channels
2006 (English)In: 2006 American Control Conference, IEEE , 2006, Vol. 1-12, 4183-4188 p.Conference paper (Refereed)
Bandwidth limitations and energy constraints set severe restrictions on the design of control systems that utilize wireless sensor and actuator networks. It is common in these systems that a sensor node needs not be continuously monitored, but communicates to the controller only at certain instances when it detects a disturbance event. In this paper, such a scenario is studied and particular emphasis is on efficient utilization of the shared communication resources. Encoder-decoder design for an event-based control system with the plant affected by pulse disturbances is considered. A new iterative procedure is proposed which can jointly optimize encoder-decoder pairs for a certainty equivalent controller. The goal is to minimize a design criterion, in particular, a linear quadratic cost over a finite horizon. The algorithm leads to a feasible design of time-varying non-uniform encoder-decoder pairs. Numerical results demonstrate significant improvements in performance compared to a system using uniform quantization.
Place, publisher, year, edition, pages
IEEE , 2006. Vol. 1-12, 4183-4188 p.
, Proceedings of the American Control Conference, ISSN 0743-1619
Actuators, Bandwidth, Communication system control, Control systems, Costs, Event detection, Feedback control, Monitoring, Sensor systems, Wireless sensor networks
IdentifiersURN: urn:nbn:se:kth:diva-26571DOI: 10.1109/ACC.2006.1657375ISI: 000241666308021ScopusID: 2-s2.0-34047196188ISBN: 1-4244-0209-3OAI: oai:DiVA.org:kth-26571DiVA: diva2:380457
American Control Conference 2006 Minneapolis, MN, JUN 14-16, 2006
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QC 201012212010-12-212010-11-252012-02-17Bibliographically approved