G - Physics – 01 – C
Patent
G - Physics
01
C
G01C 21/26 (2006.01) B61L 25/02 (2006.01) G01C 21/34 (2006.01)
Patent
CA 2518192
A method and system in which a vehicle carries an on-board positioning system and has access to a database of information pertaining to a plurality of fixed paths. A vector between the position of the fixed path and a position of the vehicle as reported by the positioning system is calculated prior to arriving at a point of divergence (i.e., a point at which a path branches, such as a switch on a railroad track). After passing the path divergence, a second vector is calculated between the position of the vehicle as reported by the positioning system and at least one of the alternate paths, preferably the correct alternate path. The first vector is compared to the second vector, and a determination as to which path the vehicle is on is made based on the comparison.
Il s'agit d'une méthode et d'un système dans lesquels un véhicule transporte un système de positionnement embarqué et a accès à une base de données ayant trait à de multiples trajets fixes. Le calcul d'un vecteur entre la position du trajet fixe et une position du véhicule signalée par le système de positionnement est effectué avant l'arrivée à un point de divergence (c.-à-d., un point auquel se raccorde un trajet, comme un aiguillage de chemin de fer). Passé la divergence de trajet, le calcul d'un second vecteur est effectué entre la position du véhicule signalée par le système de positionnement et au moins un des trajets de remplacement, de préférence le trajet de remplacement correct. Le premier vecteur est comparé au second vecteur, et la détermination du trajet sur lequel se trouve le véhicule est effectuée en fonction de la comparaison.
Hickenlooper Harrison Thomas
Kane Mark Edward
Invensys Rail Corporation
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Quantum Engineering Inc.
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