Safety device for a system or apparatus which operates in a...

Details Safety device for a system or apparatus which operates in a... Safety device for a system or apparatus which operates in a...

G - Physics

05

B

341/110

G05B 11/00 (2006.01) B61L 3/00 (2006.01)

Patent

CA 1095148

IN THE CANADIAN PATENT OFFICE PATENT APPLICATION entitled "A Safety Device for a System or apparatus which operates in a sequence of stages" in the name of: REGIE AUTONOME DES TRANSPORTS PARISIENS et INTER-ELEC A B S T R A C T A safety device for a transport system in which a vehicle travels on a track divided into sequential sections operates to stop the vehicle when a parameter representing the motion of the vehicle exceeds a threshold in the course of travelling over a track section. The device comprises two comparators each delivering during each track section a comparison signal having a first value when the parameter remains within the threshold and a second value when the parameter exceeds the threshold. A coincidence detector is connected to receive the output signals of the two comparators and operates to initiate emergency braking of the vehicle if the output signals of the two comparators do not simultaneously have the same value during a track section.

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