Location estimation of wireless terminals in a multi-story...

Details Location estimation of wireless terminals in a multi-story... Location estimation of wireless terminals in a multi-story...

G - Physics

01

S

G01S 5/14 (2006.01) H04W 4/04 (2009.01) G01S 5/02 (2006.01)

Patent

CA 2496598

A method and apparatus are disclosed for estimating the location of a wireless terminal across multiple building floors. The illustrative embodiment determines the floor where the wireless terminal is presently located by using a majority logic- based heuristic. A plurality of signal monitors measure signals from the wireless terminal and provide those signal strength measurements to a location estimation server. Alternatively, the wireless terminal measures signals that are transmitted by a plurality of transmitting signal devices and provides those signal strength measurements to a location estimation server. The location estimation server determines the floor of the wireless terminal in accordance with the illustrative embodiment of the present invention.

On décrit un procédé et un appareil permettant d'estimer l'emplacement d'un terminal sans fil à travers de multiples étages de construction. Le mode de réalisation illustratif détermine le sol où le terminal sans fil se trouve à ce moment en utilisant une heuristique à base de logique majoritaire. Une pluralité de moniteurs de signaux mesurent les signaux provenant du terminal sans fil et acheminent ces mesures d'intensité de signal à un serveur d'estimation de position. Dans un autre mode de réalisation, le terminal sans fil mesure des signaux qui sont transmis par une pluralité de dispositifs de signal de transmission, et fournit ces mesures d'intensité de signal à un serveur d'estimation de position. Le serveur d'estimation de position détermine le plancher du terminal sans fil selon le mode de réalisation illustratif de la présente invention.

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