Scheduling algorithm of data sampling times in the integrated communication and control systems

Integrated communication and control systems (ICCS) consist of several distributed control processes which share a network medium. Performance of several feedback control loops in the ICCS is subject to the network-induced delays from sensor to controller and from controller to actuator. The network...

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Vydané v:IEEE transactions on control systems technology Ročník 3; číslo 2; s. 225 - 230
Hlavný autor: Hong, Seung Ho
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: IEEE 01.06.1995
Predmet:
Automatic control
Centralized control
Communication system control
Control systems
Distributed control
Job shop scheduling
Processor scheduling
Real time systems
Sampling methods
Scheduling algorithm
ISSN:1063-6536
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Shrnutí:Integrated communication and control systems (ICCS) consist of several distributed control processes which share a network medium. Performance of several feedback control loops in the ICCS is subject to the network-induced delays from sensor to controller and from controller to actuator. The network-induced delays are directly dependent upon the data sampling times of the control components which share a network medium. In this study, a scheduling algorithm of determining data sampling times is developed using the window concept, where the sampled data from the control components in the ICCS share a limited number of windows, so that the performance requirement of each control loop is satisfied as well as the utilization of network resources is considerably increased. The scheduling algorithm is verified by discrete-event/continuous-time simulation model of an example of ICCS.< >
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ISSN:1063-6536
DOI:10.1109/87.388131