Apparatus for localizing of a train

Details Apparatus for localizing of a train Apparatus for localizing of a train

1982-06-10

1985-04-02

Groody, James J.

Railway switches and signals

Cab signal or train control

Magnetic rail

246 63R, 246122R, B61L 300

Patent

active

045082987

ABSTRACT:
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.

REFERENCES:
patent: 1524429 (1925-01-01), Gewecke
patent: 3284614 (1966-11-01), Bramer
patent: 3426349 (1969-02-01), Gareis
patent: 3940765 (1976-02-01), Grafinger
patent: 4041448 (1977-08-01), Noens
patent: 4274611 (1981-06-01), Salmon

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