Electronic Science and Technology ›› 2021, Vol. 34 ›› Issue (7): 7-12.doi: 10.16180/j.cnki.issn1007-7820.2021.07.002

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Event-Based Fault Detection Filter with Packet Loss and Time-Varying Delay

HUANG Yuecheng,TONG Dongbing   

  1. School of Electronic and Electrical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China
  • Received:2020-03-09 Online:2021-07-15 Published:2021-07-05
  • Supported by:
    National Natural Science Foundation of China(61673257);National Natural Science Foundation of China(11501367);General Program of China Postdoctoral Science Foundation(2019M661322)


In view of at the problem of coordinated design of event-triggered fault detection filters and controllers in continuous-time network control systems, by considering the network induced delay and the packet loss in networked control systems, an output feedback closed-loop model including the event-triggered mechanism and fault detection filter is established. In order to reduce the conservativeness of the system, Jensen's inequality is used. Compared with Wirtinger inequality, Jensen's inequality is not conservative. Thus, the sensitivity of residual signals for faults can be ensured by the designed fault detection filter and the controller. The effectiveness of the proposed event-triggered mechanism is verified by the simulation, and the residual evaluation function curve proves that system faults can be detected quickly by the fault detection filter.

Key words: networked control systems, event-triggered mechanism, fault detection filter, network induced delay, packet loss, output feedback, residual signals, residual evaluation function

CLC Number: 

  • TP391