Abstract
Development of mission critical safety systems requires much effort as the resulted system will have impacts on the human life, property and environment. The design criteria such as data interchange between CPUs, synchronization, computation speed and diagnostic measures shall exhaustively be evaluated along with the effects of the parameters used in the reliability and safety calculations ex tunc. This study focuses on the average frequency of a dangerous failure of the safety function (PFHG). In comparison to formulas provided in IEC 61508, a comprehensive and innovative Markov model is proposed for diverse architecture, which helps to cover different safety relevant states to get quantitative results more correctly than provided in the standards and previous studies. The proposed model is applied to the vital computer to be used in the railway domain for CBTC metro and ERTMS ETCS systems and compared with the current models.
Original language | English |
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Title of host publication | 2018 6th International Conference on Control Engineering and Information Technology, CEIT 2018 |
Editors | Seref Naci Engin, Dogan Onur Arisoy, Muhammed Ali Oz |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
ISBN (Electronic) | 9781538676417 |
DOIs | |
Publication status | Published - Oct 2018 |
Externally published | Yes |
Event | 6th International Conference on Control Engineering and Information Technology, CEIT 2018 - Istanbul, Turkey Duration: 25 Oct 2018 → 27 Oct 2018 |
Publication series
Name | 2018 6th International Conference on Control Engineering and Information Technology, CEIT 2018 |
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Conference
Conference | 6th International Conference on Control Engineering and Information Technology, CEIT 2018 |
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Country/Territory | Turkey |
City | Istanbul |
Period | 25/10/18 → 27/10/18 |
Bibliographical note
Publisher Copyright:© 2018 IEEE.
Keywords
- CBTC
- CCF
- ERTMS ETCS
- Functional safety
- IEC 61508
- Markov
- PFHG
- SIL