EP 0068944 B1 19860102 - DEVICE FOR THE LOCALISATION OF A TRAIN
Title (en)
DEVICE FOR THE LOCALISATION OF A TRAIN
Publication
Application
Priority
FR 8111371 A 19810610
Abstract (en)
[origin: US4508298A] The invention has as its goal a device for extremely precise localization of a train circulating on a railway, and necessitating no complex circuit on the ground. According to the invention, the apparatus comprises, on board the train and in front of its first axle, at least one tuned emitter fixed at an electromagnetic radio frequency, and a receiver provided with two detectors. On the ground, a passive loop tuned to the frequency used, is disposed between the two rails of the track, with the detectors and emitter being disposed in such a manner that there is not direct induction between them.
IPC 1-7
IPC 8 full level
B61L 25/02 (2006.01)
CPC (source: EP US)
B61L 25/026 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
EP 0068944 A1 19830105; EP 0068944 B1 19860102; AU 554102 B2 19860807; AU 8431982 A 19821216; BR 8202992 A 19830503; CA 1187581 A 19850521; DE 3268255 D1 19860213; FR 2507559 A1 19821217; FR 2507559 B1 19840316; US 4508298 A 19850402; ZA 824081 B 19830427
DOCDB simple family (application)
EP 82401029 A 19820607; AU 8431982 A 19820531; BR 8202992 A 19820524; CA 404778 A 19820609; DE 3268255 T 19820607; FR 8111371 A 19810610; US 38717382 A 19820610; ZA 824081 A 19820610