Specification and formal verification of safety properties in point automation system by using timed-arc Petri nets

Ibrahim Şener, Özgür Turay Kaymakci, Ilker Üstoʇlu, Galip Cansever

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

1 Citation (Scopus)

Abstract

In this study, control structure related to the safety of the point automation system, which has a critical significance on tram lines, was designed through Timed-Arc Petri Nets by taking CENELEC 50128 standard as reference. CENELEC 50128 strongly recommends the utilization of Timed-Arc Petri Nets during system modeling (Table A.17) and the utilization of formal proof methods during the verification and test phases of command and control structure developed (Table A.5). The verification was performed through CTL (Computational Tree Logic), which is one of the formal proof methods. Timed-Arc Petri Nets model has been used for the first time in this area through this study. Within this context, the structure was developed by taking the point automation system at the Bastabya Station on T4 Topkapi-Habibler line, operated by Istanbul Ulaşim as the reference. Moreover, safety requirements for the automation of the points were identified and denoted mathematically while their safety functions were designed.

Original languageEnglish
Title of host publication19th IFAC World Congress IFAC 2014, Proceedings
EditorsEdward Boje, Xiaohua Xia
PublisherIFAC Secretariat
Pages12140-12145
Number of pages6
ISBN (Electronic)9783902823625
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014 - Cape Town, South Africa
Duration: 24 Aug 201429 Aug 2014

Publication series

NameIFAC Proceedings Volumes (IFAC-PapersOnline)
Volume19
ISSN (Print)1474-6670

Conference

Conference19th IFAC World Congress on International Federation of Automatic Control, IFAC 2014
Country/TerritorySouth Africa
CityCape Town
Period24/08/1429/08/14

Bibliographical note

Publisher Copyright:
© IFAC.

Keywords

  • Formal methods
  • Point automation
  • Safety
  • Timed-arc Petri nets
  • Verification

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