Positioning pattern

G - Physics – 01 – D

Patent

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Details

G01D 5/00 (2006.01) G01L 3/12 (2006.01) G06F 3/033 (2006.01)

Patent

CA 2634908

An absolute position detection device, system and method using a pattern comprising tw types of position data: location of the pattern relative an object and position of the pattern relative a sensing device, e.g. a camera. The device comprise the sensing device acquiring images of the pattern located on the object and a computational unit analysing the images for determining absolute position of the object relative the sensing device. Th present invention is realized in a number of applications, such as forming part of a torque sensor, a theodolite, an articulating arm, or an angular detector.

Appareil, système et procédé de détection d~une position absolue, utilisant un gabarit comprenant deux types de données de position, à savoir la position du gabarit par rapport à un objet et la position du gabarit par rapport à un dispositif de détection, par ex. une caméra. L~appareil comprend le dispositif de détection, lequel sert à acquérir des images du gabarit placé sur l~objet, et un module de calcul servant à analyser les images acquises pour déterminer la position absolue de l~objet par rapport au dispositif de détection. L~invention trouve un certain nombre d~applications et peut être incorporée à un détecteur de couple, un théodolite, un bras articulé ou un détecteur d~angle.

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