G - Physics – 01 – C
Patent
G - Physics
01
C
G01C 21/20 (2006.01) A61F 9/08 (2006.01) A61H 3/06 (2006.01) G01S 5/14 (2006.01)
Patent
CA 2479506
This invention relates to a system for orienting and guiding visually impaired pedestrians. The system combines a Global Positioning System (GPS) receiver to a dead reckoning unit that compensates for GPS imprecision and loss of signal. The system is highly portable: it is based on a handheld portable computing platform that communicates wirelessly with a self-powered strap containing the GPS receiver and the dead reckoning unit. The system also uses wireless protocols to receive additional orientation information from a remote location server or operator accessible through the internet.
L'invention concerne un système servant à orienter et à guider des piétons handicapés visuels. Ce système combine un récepteur GPS à un ensemble de déplacement à l'estime corrigeant l'imprécision et la perte de signal du GPS. Ce système est portable: il est basé sur une plate-forme informatique portable manuelle communiquant en mode radio avec une bande auto-alimentée contenant le récepteur GPS et l'ensemble de déplacement à l'estime. Ce système met également en application des protocoles radio afin de recevoir des informations d'orientation supplémentaires d'un serveur à distance ou d'un opérateur accessible par l'intermédiaire d'Internet.
Gaudet Manon
Hamel Pierre
Pepin Gilles
Robic
Visuaide Inc.
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