Abstract
Cyber-physical systems (CPSs) consist of a network, computation, and physical process. Embedded networks, which deliver control and sensing signal, can potentially affect CPSs performance. However, the degradation of physical system performance caused by the embedded networks is frequently oversimplified with strong assumptions. The proposed scheme effectively relaxes those assumptions in the existing works that network delays are bounded in a specific range, or its distribution is time invariant. Most of the existing works on fault diagnosis and prognosis addressed the physical system fault detection and isolation and ignore cyber network faults. A novel cyber network fault prognosis scheme is proposed to deal with both of cyber and physical system fault. It can identify when a cyber fault has occurred and pinpoint the type of fault based on CPS system performance prediction, then, trigger resilience controller at an appropriate time to minimize the computational overhead. Thus, it can guarantee the stability of the entire CPS and substantially reduce computational overhead of the resilience control by triggering it if necessary.
Recommended Citation
S. Bi et al., "Novel Cyber Fault Prognosis and Resilience Control for Cyber-Physical Systems," IET Cyber-Physical Systems: Theory and Applications, vol. 4, no. 4, pp. 304 - 312, Wiley Open Access; Institution of Engineering and Technology (IET), Dec 2019.
The definitive version is available at https://doi.org/10.1049/iet-cps.2018.5061
Department(s)
Electrical and Computer Engineering
Publication Status
Open Access
International Standard Serial Number (ISSN)
2398-3396
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2024 The Authors, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution 4.0 License.
Publication Date
01 Dec 2019