Automatic train stop system

Details Automatic train stop system Automatic train stop system

2006-02-28

2006-02-28

Swarthout, Brent A. (Department: 2636)

Communications: electrical

Vehicle detectors

C246S12200A, C701S020000

Reexamination Certificate

active

07006012

ABSTRACT:
In an automatic train stop system in which a track circuit3is divided into track circuit sections1T,2T and3T, and a digitized train control information telegram (ATS telegram)8is transmitted through the track circuit sections on carriers having different frequencies, a carrier sensor12mounted on a train5receives a carrier in the track circuit3and detects a track circuit boundary31by detecting a level change of the carrier, whereby an onboard system grasps the position thereof and controls the train5based on the information of the ATS telegram8.

REFERENCES:
patent: 3666217 (1972-05-01), Sibley
patent: 3743935 (1973-07-01), Alt
patent: 3840737 (1974-10-01), Hoyler
patent: 4074879 (1978-02-01), Clark et al.
patent: 4641803 (1987-02-01), Brown et al.
patent: 4723739 (1988-02-01), Franke
patent: 5437422 (1995-08-01), Newman

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