Title :
A Novel Smith Predictor for Wireless Networked Control Systems
Author :
Du, Feng ; Du, Wencai ; Lei, Zhi
Author_Institution :
Coll. of Inf. Sci. & Technol., Hainan Univ., Haikou, China
Abstract :
To Aim at the random, time-variant or uncertain network delays in the wireless networked control systems (WNCS), a novel Smith predictor is proposed. This new Smith predictor hides predictor models of the network delays into real network data transmission processes, therefore network delays donpsilat need to be measured, identified or estimated on-line. At the same time, this new Smith predictor doesnpsilat include the prediction model of the controlled plant, thus it doesnpsilat need to know the exact mathematical model of the controlled plant beforehand. Based on IEEE 802.15.4 (ZigBee), the results of the simulation show validity of the compensation scheme.
Keywords :
delays; distributed parameter systems; personal area networks; predictive control; uncertain systems; IEEE 802.15.4; Smith predictor; ZigBee; compensation scheme; network data transmission processes; uncertain network delays; wireless networked control systems; Communication system control; Control systems; Delay effects; Delay estimation; Mathematical model; Networked control systems; Predictive models; Wireless networks; Wireless sensor networks; ZigBee; Smith predictor; network delay; wireless networked control systems (WNCS);
Conference_Titel :
Control, Automation and Systems Engineering, 2009. CASE 2009. IITA International Conference on
Conference_Location :
Zhangjiajie
Print_ISBN :
978-0-7695-3728-3
DOI :
10.1109/CASE.2009.163
