Method and system for proximity detection and location...

Details Method and system for proximity detection and location... Method and system for proximity detection and location...

G - Physics

01

S

G01S 5/00 (2006.01) B60T 8/00 (2006.01) G06F 17/00 (2006.01)

Patent

CA 2281604

A system and method for preventing collisions between vehicles, such as railway vehicles, by exchanging data regarding track position of the vehicles. By use of an on-board track database (550), the system provides an indication of the distance between vehicles based not on line-of-sight but on track distance. Additionally, a system and method for accurately determining location of railway vehicles without the use of a network of trackside indicators. The disclosed system uses a gyro (530), tachometer (520), and a satellite position determination system (510), along with a track database (550), to maintain highly accurate estimates of measurement errors and track position.

Système et procédé servant à empêcher des collisions entre des véhicules, tels que des trains, ce qui consiste à échanger des données concernant la distance de ces trains sur les voies. L'utilisation d'une base de données (550) de distance située à bord du train, permet au système d'acquérir une indication de la distance entre des trains non basée sur la visibilité optique mais sur la distance sur la voie. L'invention concerne, de plus, un système et un procédé servant à déterminer avec précision l'emplacement de trains sans utiliser de réseau d'indicateurs latéraux. Ce système met en application un gyrophare (530), un tachymètre (520) et un dispositif (510) de détermination de position satellite, ainsi qu'une base de données (550) de distance, de façon à effectuer des évaluations continues extrêmement précises d'erreurs de mesure et de position sur les voies.

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