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1. (WO2018065204) SAFETY DEVICE AND METHOD FOR DETERMINING A MOVEMENT

Pub. No.:    WO/2018/065204    International Application No.:    PCT/EP2017/073562
Publication Date: Fri Apr 13 01:59:59 CEST 2018 International Filing Date: Wed Sep 20 01:59:59 CEST 2017
IPC: G01C 19/72
B61L 27/00
Applicants: SIEMENS MOBILITY GMBH
Inventors: RAHN, Karsten
Title: SAFETY DEVICE AND METHOD FOR DETERMINING A MOVEMENT
Abstract:
The invention relates to a safety device having at least one fiber-optic sensor. In order to provide a safety device which is technically secure with respect to signalling and nevertheless cost-effective, it is proposed according to the invention that the sensor comprises at least two light sources (4) and at least one evaluation device (5) which is configured for independent signal evaluation of light of the at least two light sources (4). The invention also relates to a method for determining a movement.