(19)

(11)

EP 2 691 822 A1

(12)

(43) Date of publication: 05.02.2014 Bulletin 2014/06 (21) Application number: 12711198.7 (22) Date of filing: 30.03.2012

(51) International Patent Classification (IPC):  G05B 19/042(2006.01) H04L 12/24(2006.01) G05B 19/418(2006.01) (86) International application number: PCT/EP2012/055891 (87) International publication number: WO 2012/131074 (04.10.2012 Gazette 2012/40)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 31.03.2011 EP 11290166 (71) Applicant: Alstom Technology Ltd 5400 Baden (CH)	(72) Inventors: SABOT, Hervé F-92150 Suresnes (FR) PERRIER, Valérie F-92410 Ville d'Avray (FR)