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Scheduling of Event-Triggered Controllers on a Shared Network

Cervin, Anton LU and Henningsson, Toivo LU (2008) 47th IEEE Conference on Decision and Control, 2008
Abstract
We consider a system where a number of independent, time-triggered or event-triggered control loops are closed over a shared communication network. Each plant is described by a first-order linear stochastic system. In the event-triggered case, a sensor at each plant frequently samples the output but attempts to communicate only when the magnitude of the output is above a threshold. Once access to the network has been gained, the network is busy for T seconds (corresponding to the communication delay from sensor to actuator), after which the control action is applied to the plant. Using numerical methods, we compute the minimum-variance control performance under various common MAC-protocols, including TDMA, FDMA, and CSMA (with random,... (More)
We consider a system where a number of independent, time-triggered or event-triggered control loops are closed over a shared communication network. Each plant is described by a first-order linear stochastic system. In the event-triggered case, a sensor at each plant frequently samples the output but attempts to communicate only when the magnitude of the output is above a threshold. Once access to the network has been gained, the network is busy for T seconds (corresponding to the communication delay from sensor to actuator), after which the control action is applied to the plant. Using numerical methods, we compute the minimum-variance control performance under various common MAC-protocols, including TDMA, FDMA, and CSMA (with random, dynamic-priority, or static-priority access). The results show that event-triggered control under CSMA gives the best performance throughout. (Less)
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Contribution to conference
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conference name
47th IEEE Conference on Decision and Control, 2008
external identifiers
  • Scopus:62949136130
language
English
LU publication?
yes
id
d2e25efc-844f-4fc3-9130-7e7abf95f13c (old id 1445340)
alternative location
http://www.control.lth.se/database/publications/article.pike?artkey=cer%2Bhen08
date added to LUP
2009-07-20 08:46:58
date last changed
2016-11-27 04:37:04
@misc{d2e25efc-844f-4fc3-9130-7e7abf95f13c,
  abstract     = {We consider a system where a number of independent, time-triggered or event-triggered control loops are closed over a shared communication network. Each plant is described by a first-order linear stochastic system. In the event-triggered case, a sensor at each plant frequently samples the output but attempts to communicate only when the magnitude of the output is above a threshold. Once access to the network has been gained, the network is busy for T seconds (corresponding to the communication delay from sensor to actuator), after which the control action is applied to the plant. Using numerical methods, we compute the minimum-variance control performance under various common MAC-protocols, including TDMA, FDMA, and CSMA (with random, dynamic-priority, or static-priority access). The results show that event-triggered control under CSMA gives the best performance throughout.},
  author       = {Cervin, Anton and Henningsson, Toivo},
  language     = {eng},
  title        = {Scheduling of Event-Triggered Controllers on a Shared Network},
  year         = {2008},
}