Method and system for determining location using a hybrid...

Details Method and system for determining location using a hybrid... Method and system for determining location using a hybrid...

H - Electricity

04

W

H04W 64/00 (2009.01) H04W 4/02 (2009.01) H04W 48/18 (2009.01) H04W 84/06 (2009.01) H04W 84/12 (2009.01)

Patent

CA 2727038

Embodiments of the disclosed subject matter provide a method of integrating a WLAN- based positioning system (WLAN-PS) and a satellite -based positioning system (SPS) to create a hybrid positioning system. An integrated or hybrid system refers to a system which combines the measurements from one or more systems to improve the accuracy of the positioning and velocity and bearing estimates and the accuracy of expected error estimate, and to reduce consumed power as compared to each individual system working independently. The method of integrating a WLAN-PS and SPS to create a hybrid positioning system can add raw SPS measurements as another input to WLAN-PS and WLAN-PS final estimations as another input to SPS. Raw SPS measurements from two or more satellites can assist the WLAN-PS to increase the accuracy of position estimate, HPE, and stationary user detection.

Linvention concerne un procédé dintégration dun système de positionnement à base de WLAN (WLAN-PS) et un système de positionnement à base de satellite (SPS) pour créer un système de positionnement hybride. Un système intégré ou hybride se réfère à un système qui combine les mesures dun ou plusieurs systèmes pour améliorer la précision de positionnement et de vitesse et portant des estimées et la précision dune estimée derreur attendue, et pour réduire lénergie consommée en comparaison au cas où chaque système individuel travaille indépendamment. Le procédé dintégration dun WLAN-PS et SPS pour créer un système de positionnement hybride peut ajouter des mesures SPS brutes comme autre entrée au WLAN-PS et des estimations finales WLAN-PS comme autre entrée au SPS. Des mesures SPS brutes de deux satellites ou plus peuvent assister le WLAN-PS pour augmenter la précision de lestimée de position, HPE, et la détection dutilisateur stationnaire.

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