Title :
Adaptive control speed based on network quality of service
Author_Institution :
Dept. of Autom. & Syst. Technol., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
The adaptive control speed algorithm, developed in this paper, adapts the control performance according to the communication quality of service in a networked control system. The adaptive control speed algorithm is distributed among several control loops, all sharing a bandwidth limited network. The target is to adjust the control speed and sampling interval of all the control loops, such that the network is fully utilized, while not congesting the network, but maintaining a specified network quality of service. The control speed is developed according to the internal model control principle. Bumpless changing the sampling time of the controller is also proposed. The adaptive control speed algorithm is demonstrated with the network and control co-simulator PiccSIM.
Keywords :
adaptive control; distributed control; quality of service; telecommunication congestion control; velocity control; adaptive control speed; bandwidth limited network; communication quality of service; control performance; cosimulator PiccSIM; distributed control loops; network congestion; network quality of service; networked control system; Adaptive control; Automatic control; Bandwidth; Communication system control; Communication system traffic control; Control system synthesis; Control systems; Optimal control; Quality of service; Sampling methods; internal model control; network adaptive control; networked control system;
Conference_Titel :
Control and Automation, 2009. MED '09. 17th Mediterranean Conference on
Conference_Location :
Thessaloniki
Print_ISBN :
978-1-4244-4684-1
Electronic_ISBN :
978-1-4244-4685-8
DOI :
10.1109/MED.2009.5164639
