Centreline identification in a docking guidance system

G - Physics – 08 – G

Patent

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Details

G08G 5/06 (2006.01) B64D 47/08 (2006.01) B64F 1/00 (2006.01) G01S 17/00 (2006.01) G01S 17/89 (2006.01) G01S 7/497 (2006.01) G01S 13/93 (2006.01)

Patent

CA 2469416

The present invention achieves an accurate and quick centreline identification in a docking guidance system and further a verification of a centerline configuration. Heretofore, it is proposed to scan an apron in front of a docking stand with a range finder and to register a reflection intensity and position for each scanned point. Then, a centreline (14) is identified in front of the docking stand by using differences in reflection intensity between the centreline (14) and the apron surface surrounding the centreline (14). Further, at least two centreline definition points (38, 40) are defined in compliance with the centreline layout.

L'invention concerne un système assurant une identification précise et rapide de l'axe longitudinal dans un système de guidage pour l'accostage, ainsi qu'une vérification d'une configuration d'axe longitudinal. A cet effet, on balaie une aire de trafic en face d'un poste d'accostage à l'aide d'un télémètre et on enregistre une intensité de réflexion et une position pour chaque point balayé. Puis, un axe longitudinal (14) est identifié en face du poste d'accostage en utilisant des différences dans l'intensité de réflexion entre l'axe longitudinal (14) et la surface d'aire de trafic entourant l'axe longitudinal (14). Ensuite, au moins deux points de définition d'axe longitudinal (38, 40) sont déterminés conformément au tracé de l'axe longitudinal.

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