Fault detection for a class of nonlinear networked control systems with Markov sensors assignment and random transmission delays |
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| Authors: | Yanqian Wang Shengyuan Xu Shuyu Zhang |
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| Institution: | 1. School of Automation, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China;2. School of Information and Electronic Engineering, Shandong Institute of Business and Technology, Yantai, Shandong 264005, China;3. School of Public Administration, Shandong Institute of Business and Technology, Yantai, Shandong 264005, China |
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| Abstract: | The paper investigates the fault detection problem for a class of nonlinear networked control systems with both communication constraints and random transmission delays. The access status of the sensors is governed by a stochastic event, which is modeled as a Markov chain taking matrix values in a certain set. The main task of this paper is to design a mode-dependent fault detection filter, such that for Markov sensors assignment, random network-induced delays and the unknown input signal, the error between the fault and the residual signal is minimized. And the resulting fault detection dynamics is formulated as an H∞ filtering problem of a Markov jump system. The linear matrix inequality-based sufficient conditions for the existence of the fault detection filter are obtained. Finally, two examples are given to show the effectiveness of the developed method. |
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