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Mathematical Problems in Engineering
Volume 2014, Article ID 513506, 10 pages
http://dx.doi.org/10.1155/2014/513506
Review Article

Fundamental Issues and Prospective Directions in Networked Multirate Control Systems

1College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China
2School of Control Science and Engineering, Dalian University of Technology, Dalian 116026, China

Received 4 December 2013; Revised 15 February 2014; Accepted 16 February 2014; Published 19 March 2014

Academic Editor: Hak-Keung Lam

Copyright © 2014 Wang Zhiwen and Guo Ge. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In view of the synchronized uniform equidistant sampling method that is widely used in network control systems (NCSs), multirate sampling control for NCSs is presented by considering the natural characteristics of NCSs. Two kinds of typical structures of network multirate control systems (NMCSs) are presented and the multirate sampling mechanisms are formulated. Then, fundamental issues and prospective directions in NMCSs are preliminarily discussed. The contents involve modeling, sampling pattern selection, control strategies, scheduling algorithms, and codesign of NMCSs. The purpose of this paper is to arouse more attention of researchers in related subjects, so that a complete theory for NCSs can be established.