Railway switches and signals – Train-position indication – Miniature model
Patent
1987-09-01
1989-09-05
Capossela, Ronald C.
Railway switches and signals
Train-position indication
Miniature model
246246, 246270R, 340933, 340988, B61L 2334
Patent
active
048631230
ABSTRACT:
A process for localizing a mobile unit on a railway network, with a system that includes: a sensor (R) in the form of radar having an antenna (A) which is integral to the mobile unit and that cooperates with fixed markers (RP) placed alongside the railway track; a shaping circuit for a signal issued by the sensor; the radar being operative for measuring the distance traveled or the travel time; a database (BD) which contains the description of a graph of which knots or nodes represent the fixed markers and branches represent the railway tracks that connect them; and a circuit (OT) controlled by the shaped signal, connected to the radar and to the database, for determining the position of the mobile unit.
REFERENCES:
patent: 2432984 (1947-12-01), Budenbom
patent: 3108771 (1963-10-01), Pelino et al.
patent: 3316400 (1967-04-01), Dosch et al.
patent: 3489893 (1970-01-01), Roberts
patent: 3559820 (1971-02-01), Munson
patent: 3581071 (1971-05-01), Payseure
patent: 3947807 (1976-03-01), Tyler et al.
patent: 4151969 (1979-05-01), Wood
patent: 4508298 (1985-04-01), Salmon
Bernard Patrice
Gazet Andre
Lancien Daniel
Capossela Ronald C.
Societe Nationale Des Chemins De Fer Francais
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