Rail navigation system

B - Operations – Transporting – 61 – L

Patent

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Details

B61L 25/02 (2006.01) G01C 21/14 (2006.01) G01C 21/20 (2006.01) G08G 1/0968 (2006.01)

Patent

CA 2175776

Method and apparatus for a railway navigation system which provides information defining the position of a railway vehicle on a track system. The system uses an on-board computer with a track database representing the locations of the rail lines, including locations of curves and switches. The system uses a turn rate indicator and a speedometer means to obtain a value for the curvature of the track on which the railway vehicle moves. Curvature data so obtained is compared with data in the track database to determine the position of the railway vehicle in relation to curves and switches of the track system.

Méthode et appareil pour système de navigation sur voies ferrées fournissant des informations indiquant la position d'un véhicule de chemin de fer sur un système de voies ferrées. Le système utilise un ordinateur de bord comportant une base de données sur les voies représentant l'emplacement des rails, y compris l'emplacement des courbes et des dispositifs d'aiguillage. Le système utilise un indicateur de taux de virage et un indicateur de vitesse permettant de déterminer la valeur de la courbe de la voie sur laquelle circule le véhicule de chemin de fer. Les données obtenues sur la courbure des voies sont comparées à celles de la base de données sur les voies pour déterminer la position du véhicule de chemin de fer par rapport aux courbes et aux dispositifs d'aiguillage du système de voies ferrées.

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