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Content Provider | ACM Digital Library |
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Author | Sistla, A. Prasad Žefran, Miloý Ben, Yue Feng, Yao |
Abstract | Ensuring the correct behavior of cyber physical systems at run time is of critical importance for their safe deployment. Any malfunctioning of such systems should be detected in a timely manner for further actions. This paper addresses the issue of how quickly a monitor raises an alarm after the occurrence of a failure in cyber physical systems. Towards this end, it introduces a class of systems called exponentially converging monitorable systems. The paper shows that failures in these systems can be detected fast by employing the traditional threshold monitors. It shows that the expected failure detection time for exponentially converging monitorable systems has logarithmic relationship with the inverse of the chosen threshold value. The paper identifies well defined natural classes of these systems. Experimental results are presented that confirm the theoretical results on the relationship between the failure detection time and the chosen threshold values. |
Starting Page | 61 |
Ending Page | 70 |
Page Count | 10 |
File Format | |
ISBN | 9781450327329 |
DOI | 10.1145/2562059.2562136 |
Language | English |
Publisher | Association for Computing Machinery (ACM) |
Publisher Date | 2014-04-15 |
Publisher Place | New York |
Access Restriction | Subscribed |
Subject Keyword | Stochastic systems Cyber physical systems Threshold monitors Runtime monitoring Convergence properties |
Content Type | Text |
Resource Type | Article |
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