Device for detecting especially one or more wheels of a...

G - Physics – 08 – G

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G08G 1/042 (2006.01) G08G 1/015 (2006.01)

Patent

CA 2139577

Device for the detection of one or more wheels of a vehicle or a travelling wheeled device and method for using of said device. The device consists of at least one electromagnetic loop and an assessment unit and is characterized in that said electromagnetic loop (2) has a small dimension (2) in the direction of vehicle movement or of the roadway axis (X), which is less than the diameter of the vehicle wheels to be identified, and a rectangular shape and/or rectilinear configuration disposed at right angles to the axis (X) of the roadway (1). The loop is sensitive in a distinct and opposite manner to the electromagnetic influences of a vehicle's metallic masses moving in translation and the rotating metallic masses of said vehicle's wheels.

La présente invention a pour objet un dispositif pour détecter notamment une ou plusieurs roues d'un véhicule ou d'un en- gin mobile roulant et un procédé mettant en oeuvre ce dispositif. Dispositif constitué par au moins une boucle électromagnétique et par une unité d'évaluation, caractérisé en ce que la ou les boucles (2) électromagnétiques présentent une faible dimension (2) dans la direction du déplacement des véhicules ou de l'axe (X) de la chaussée (1), inférieure au diamètre des roues des véhicules à identifier, et, une forme rectangulaire et/ou un arrangement rectiligne disposé perpendiculairement à l'axe (X) de la chaussée (1), la ou les boucles (2) étant sensible(s) de manière distincte et opposée, aux influences électromagnétiques des masses métalliques en translation et en rotation, au niveau des roues dudit véhicule.

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