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Research Papers

Controller Design for Systems With Multipacket Transmissions

[+] Author and Article Information
Ge Guo

 School of Information Sciences and Technology, Dalian Maritime University, Dalian 116026, Chinageguo@yeah.net

Zibao Lu

 School of Information Sciences and Technology, Dalian Maritime University, Dalian 116026, Chinaluzibao@163.com

Hui Jin

School of Information Engineering,  Shenyang University of Chemical Technology, Shenyang 110142, Chinajh993821@126.com

J. Dyn. Sys., Meas., Control 134(5), 051001 (Jun 05, 2012) (12 pages) doi:10.1115/1.4004043 History: Received August 15, 2009; Revised February 22, 2011; Published June 05, 2012; Online June 05, 2012

This paper investigates the problem of stability analysis and state-space-equation controller design for a type of nonlinear systems in which measurement data of the sensors and the control signals are communicated through independent communication channels via a multiple-packet transmission policy. The packet delays (and dropouts) at the sensors side and the actuators side are assumed to be different in properties and are treated separately. A framework of stability analysis and controller design under multiple-packet transmission policy is derived by simultaneous consideration of quantization effect, successive packet delays, dropouts, and noises. The main results are obtained by constructing a new Lyapunov functional and using a new tight bounding technique without introducing any free-weighting matrices. As a general tool for designing state-space-equation controllers for networked control systems, the presented method is less conservative with reduced number of variables and larger upper bounds of time-delays, which is shown by numerical examples.

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Copyright © 2012 by American Society of Mechanical Engineers
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Grahic Jump Location
Figure 1

State response with vs (t) = vc (t) = 0

Grahic Jump Location
Figure 2

State response under noises given in Eq. (89)

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