Enhancement of full coverage markov model for diverse systems with common cause failures

Ersin H. Dogruguven, Ilker Ustoglu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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 languageEnglish
Title of host publication2018 6th International Conference on Control Engineering and Information Technology, CEIT 2018
EditorsSeref Naci Engin, Dogan Onur Arisoy, Muhammed Ali Oz
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538676417
DOIs
Publication statusPublished - Oct 2018
Externally publishedYes
Event6th International Conference on Control Engineering and Information Technology, CEIT 2018 - Istanbul, Turkey
Duration: 25 Oct 201827 Oct 2018

Publication series

Name2018 6th International Conference on Control Engineering and Information Technology, CEIT 2018

Conference

Conference6th International Conference on Control Engineering and Information Technology, CEIT 2018
Country/TerritoryTurkey
CityIstanbul
Period25/10/1827/10/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

Keywords

  • CBTC
  • CCF
  • ERTMS ETCS
  • Functional safety
  • IEC 61508
  • Markov
  • PFHG
  • SIL

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