期刊
SOFTWARE ENGINEERING AND FORMAL METHODS: SEFM 2021 COLLOCATED WORKSHOPS
卷 13230, 期 -, 页码 143-155出版社
SPRINGER INTERNATIONAL PUBLISHING AG
DOI: 10.1007/978-3-031-12429-7_11
关键词
Digital Shadow; Cyber-Physical System; Stability; Tracking
资金
- Poul Due Jensen Foundation
- China Scholarship Council
The complete initial state of a system is not always necessary for synchronization between a Digital Shadow and a Cyber-Physical System. Traditional stability analysis can determine the conditions under which a simulation can eventually synchronize with the CPS even without knowing the initial state.
The synchronization between a Digital Shadow (DS) and a Cyber-Physical System (CPS) is paramount to enable anomaly detection, predictive maintenance, what-if analysis, etc. Such synchronization means that a simulation reflects, as closely as possible, the states of the CPS. The simulation however, requires the complete initial state of the system to be known, which is often infeasible in real applications. In our work, we study the conditions under which knowing the initial state of the system is irrelevant for a simulation to eventually synchronize with the CPS. We apply traditional stability analysis to answer this question for linear periodic systems. We demonstrate the method using a simple but representative system, an incubator with a periodic control signal.
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