Title: An observer-based compensator for networked control systems

Authors: Xiang-Hua Ma, Jian-Ying Xie

Addresses: School of Mechanical and Automation Engineering, Shanghai Institute of Technology, Shanghai 200235, PR China. ' School of Mechanical and Automation Engineering, Shanghai Institute of Technology, Shanghai 200235, PR China

Abstract: A challenging issue in Networked Control Systems (NCSs) is how to compensate the effect made by network-induced delays. In this paper, a control scheme is proposed for compensating the effects of delays between sensor and controller and between controller and actuator within a control loop. The key idea is that the knowledge of the plant dynamics is used to reduce the usage of network. Experimental results show that the method well guarantees the stability of the system.

Keywords: networked control systems; NCSs; network-induced delays; delay compensation; CAN-bus; observer-based compensators; plant dynamics; system stability.

DOI: 10.1504/IJMIC.2007.014629

International Journal of Modelling, Identification and Control, 2007 Vol.2 No.2, pp.169 - 175

Published online: 21 Jul 2007 *

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