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This paper proposes a new approach to reduce the data transmitted in networked control systems (NCSs) via model reduction method. Based on the controllability and observability of the remote controlled plant, the “unimportant” information of system states vector is truncated by balanced truncation method (BTM) before sending to the controller via network. The exponential stability condition of the...
In this paper, we are concerned with the quantized H∞ control problem for a class of stochastic systems with random communication delays. The system under consideration involves signals quantization, Itô stochastic disturbance as well as random communication delays. The measured output and the control input quantization are considered simultaneously. We aim at designing an observer-based controller...
This paper is concerned with fuzzy-model based stabilization of nonlinear networked control systems (NCSs) with time-varying transmission delays and transmission intervals based on a random-delay approach. The real-time distribution of input delays resulting from transmission delays and intervals is modeled as a dependent and nonidentically distributed process. Then a randomly switched Takagi-Sugeno...
This paper deals with the H∞ control for a class of continuous-time networked control systems based on continuous-time Markov chains. Firstly, with controller switching strategy, a class of linear continuous-time networked control systems are modeled as continuous-time Markov jump linear systems. Secondly, using the Lyapunov functional approach, sufficient conditions on the existence of an H∞ controller...
This paper is concerned with the observer-based H∞ control for continuous-time networked control systems (NCSs) considering packet dropouts and network-induced delays. Under consideration of packet dropouts and network-induced delays in Sensor-to-Controller (S-C) channel and network-induced delays in Controller-to-Actuator (C-A) channel, by taking the non-uniform distribution characteristic of measurement...
The issue of H infinite control for multi-rate networked control systems (NCSs) with both time-delay and packet-dropout is discussed in this paper. Compared with traditional NCSs, the sampling periods of the nodes in multi-rate NCSs are different. Based on Markov theory, a new approach is proposed to convert the multi-rate NCSs into a non-uniform sampling system. A stochastic mean-square sate feedback...
This paper is concerned with the problem of quantized H∞ control for discrete-time networked control systems (NCSs) with random communication delays and packet dropouts. By choosing appropriate Lyapunov functional, sufficient conditions for the existence of quantized H∞ controller is derived, such that the closed-loop discrete-time networked control systems is robustly asymptotically mean-square stable...
This paper is concerned with fuzzy-model based robust stability of nonlinear networked control systems (NCSs) with time-varying transmission delays, transmission intervals and input missing based on a random-delay approach. The real-time distribution of input delays resulting from transmission delays and intervals is modeled as a dependent and nonidentically distributed process, and the occurrence...
After analyzing the NCS application advantages and Disadvantages of Ethernet and TCP/IP network, the model predictive control algorithm is used to explore the transmission delay of the network control system. A delay compensation control scheme which based on dynamic matrix control algorithm is given. The scheme is proved to be effective by simulation.
This paper considers the stabilization problem of networked control systems concerned both bounded channel uncertainty and arbitrary packet loss. Based on a previous approach which considers packet loss only, this paper proposes a new model to describe the NCS with both packet loss and channel uncertainty in an unified framework. The stability conditions of networked control systems are given by a...
This paper focuses on the optimal tracking performance of unstable models. The work is presented for discrete time, linear time-invariant and finite-dimensional networked control systems. An integral square error criterion, between the reference signal and output, is adopted to measure the tracking performance. The explicit expression of optimal tracking error has been obtained. The plant under consideration...
With the wide use of computer and the rapid development of network technology, the research in the emerging area of networked control systems (NCSs) has attracted considerable attention in the research community. The purpose of this survey is to provide a review of state-of-the-art of such research. We particularly discuss things as follows: event-driven sampling for energy and communication efficiency,...
In this paper, we study the optimal tracking performance problem of continuous-time linear multi-input multi-output (MIMO) networked control systems. The unstable and non-minimum phase systems is considered. The output feedback path is subject to quantization noise, additive white Gaussian noise and bandwidth constraints, and encoding and decoding are considered. The reference input is a random signal...
This paper studies the stability analysis for a class of networked control systems with time-delay. Based on the general model of networked control systems, by choosing proper Lyapunov-Krasovskii functional and applying the Jensen inequality and the Wirtinger's inequality comprehensively, we obtain less conservative LMI-based delay-dependent stability condition. Finally, we verify the sufficient condition...
The singular networked control systems with networked-induced delay and data packet dropout are analyzed. Under the condition that the sensor, controller and actuator are time-driven, a singular networked control system model with data packet loss is established. In addition, based on Lyapunov function and LMI technique, a controller design method is provided under which closed-loop networked control...
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