Title :
MIMO network control systems with asynchronous sampling based on dividing the time slice
Author :
Fan Wei-Hua ; Chen Xiao-du ; Xie Rong-Hua ; Chen Qing-wei
Author_Institution :
Autom. Sch., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
The modeling and control of a class of MIMO networked control systems are studied in this paper. First, for the problem of packet collisions caused by the synchronous sampling of the sensor nodes in multi-loops network control systems, the strategy of asynchronous sampling based on dividing the time slice is proposed. By analyzing the data transmission characteristics of networked control system with network-induced delay at the case of asynchronous sampling strategy, a discrete mathematical model of multi-loops networked control system is established. With the Lyapunov function and the Linear Matrix inequalities, the sufficient condition for asymptotic stability and output feedback control law of the system are proposed. Finally, a numerical example and simulation example based on True-time toolbox are given to verify the feasibility and effectiveness of the method.
Keywords :
Lyapunov matrix equations; MIMO systems; asymptotic stability; linear matrix inequalities; networked control systems; Lyapunov function; MIMO network control system; asymptotic stability; asynchronous sampling strategy; data transmission characteristics; discrete mathematical model; linear matrix inequalities; multiloops network control system; multiloops networked control system; network-induced delay; output feedback control law; packet collision; sensor node; time slice dividing; true-time toolbox; Asymptotic stability; Automation; Educational institutions; MIMO; Mathematical model; Networked control systems; Numerical models; MIMO networked control systems; asynchronous sampling; modeling; stability;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2012 10th World Congress on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-1397-1
DOI :
10.1109/WCICA.2012.6358011