Robust fault detection of linear systems over networks with bounded packet loss |
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Authors: | Bo Liu Yuanqing Xia Yi Yang Mengyin Fu |
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Institution: | 1. School of Automation, Beijing Institute of Technology, Beijing 100081, China;2. Key Laboratory of Complex Systems Intelligent Control and Decision, Beijing Institute of Technology, Beijing 100081, China;1. School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072, PR China;2. School of Electrical and Automation Engineering, Nanjing Normal University, Nanjing, Jiangsu 210042, PR China;3. Centre for Intelligent and Networked Systems and School of Engineering and Technology, Central Queensland University, Rockhampton, QLD 4702, Australia |
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Abstract: | This paper is devoted to the fault detection of linear systems over networks with bounded packet loss. The inputs and the measurements of the monitored system are transmitted to a fault detection node over an unreliable network with bounded packet loss. The packet loss process is assumed to be arbitrary or Markovian in this paper. Due to the bounded packet loss process, the monitored system is modeled as a switched system by re-sampling it at each time instant when the measurements arrive at the fault detection node. A fault detection filter for this switched system is designed in this paper to satisfy some performance constraints. The filter updates only at the time instant when new measurements arrive at the fault detection node and the input data packets' lost are considered as external disturbances. Finally, the numerical example and simulations have demonstrated the usefulness of the proposed method. |
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