Abstract
In recent years, theoretical and practical research topics on networked control systems (NCSs) have gained an increasing interest from many researchers in a variety of disciplines owing to the extensive applications of NCSs in practice. In particular, an urgent need has arisen to understand the effects of communication processes on system performances. Sampling and protocol are two fundamental aspects of a communication process which have attracted a great deal of research attention. Most research focus has been on the analysis and control of dynamical behaviors under certain sampling procedures and communication protocols. In this paper, we aim to survey some recent advances on the analysis and synthesis issues of NCSs with different sampling procedures (time- and event-driven sampling) and protocols (static and dynamic protocols). First, these sampling procedures and protocols are introduced in detail according to their engineering backgrounds as well as dynamic natures. Then, the developments of the stabilization, control, and filtering problems are systematically reviewed and discussed in great detail. Finally, we conclude the paper by outlining future research challenges for analysis and synthesis problems of NCSs with different communication processes.
Highlights
Over the last few decades, developments on networked control systems (NCSs) have led to a growth of attention about the communication of NCSs
Due to the application of digital communication network, the information is firstly sampled into the digital signal before it transmitted over the network, and the communication between different components is implemented subject to the certain protocol
Event-triggered mechanism u(tk ) Controller y(tk ) Network paper, we focus on the recent advances of NCSs with different sampling procedures and communication protocols
Summary
Over the last few decades, developments on networked control systems (NCSs) have led to a growth of attention about the communication of NCSs. Different communication processes of NCSs can lead to different effects to the closed-loop systems It is of both theoretical significance and practical importance to investigate the analysis and synthesis problems for NCSs subject to the time-driven communication and event-driven communication. Since the time-driven communication is easy to implement in engineering, NCSs with timedriven communication are widely used in practical applications. The focus of this paper is to provide a timely review on the recent theoretical developments of various sampling procedures and communication protocols in time-driven communication and event-driven communication for NCSs. The references discussed in this paper include, but are not limited to the following aspects: (1) NCSs with time-driven sampling procedures, (2) NCSs with event-driven sampling procedures, and (3) NCSs subject to different communication protocols.
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