Design and Evaluation of a Safe Driver Machine Interface
Volume 5, Number 2, January 2009 - Paper 5 - pp. 153 - 166
ANDREA BONDAVALLI5, ANDREA CECCARELLI5, JESPER GRØNBÆK2, DANILO IOVINO1, LUCIE KÁRNÁ3, ŠTEPAN KLAPKA3, TATIANA K. MADSEN2, MELINDA MAGYAR4, ISTVÁN MAJZIK4, ANNA SALZO11Ansaldo Segnalamento Ferroviario, Torino, Italy
2Aalborg University, Aalborg, Denmark
3AŽD Praha s.r.o., Prague, Czech Republic
4Budapest University of Technology and Economics, Budapest, Hungary
5Institute ISTI-CNR / University of Florence, Italy
(Received on June 10, 2008 and revision on September 18, 2008)
Driver Machine Interface (DMI) is a slave unit of the train onboard computer in the ERTMS automatic train control system. The SAFEDMI project aimed at the development of a DMI which fulfills the requirements of Safety Integrity Level 2 according to the CENELEC development standards. The main challenges were (i) the reduction of the hardware complexity and costs by implementing the safety mechanisms in software and (ii) provide a safe and secure wireless communication interface to support diagnostics and maintenance. This paper presents the requirements, the design of the architecture and the wireless communication protocol, and the evaluation of the applied solutions.
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