Method and device for tracing objects and detecting change...

G - Physics – 01 – V

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G01V 3/12 (2006.01) H04W 84/18 (2009.01) B60R 25/10 (2006.01) B65D 90/48 (2006.01) G01C 21/26 (2006.01) G01S 5/02 (2010.01) G01S 5/14 (2006.01) G01V 15/00 (2006.01) G08B 13/08 (2006.01)

Patent

CA 2739723

A change in the configuration of an object is detected by an antenna from at least a portion of the object or providing an antenna closely electrically coupled to said object, receiving remote radio transmissions with a radio receiver using said antenna, and detecting a change in the configuration of said object by monitoring the signal strength of the radio transmissions received from the antenna. The same antenna can also be used to determine the path traced by the object by receiving the remote radio transmissions and comparing them with known spectra.

Selon l'invention, un changement de la configuration d'un objet est détecté par une antenne à partir d'au moins une partie de l'objet ou par couplage proche et électrique audit objet, par réception des transmissions radio à distance avec un récepteur radio à l'aide de ladite antenne, et par détection d'un changement de la configuration dudit objet par la surveillance de l'intensité de signal des transmissions radio reçues à partir de l'antenne. La même antenne peut également être utilisée pour déterminer le trajet suivi par l'objet par la réception des transmissions radio à distance et leur comparaison avec des spectres connus.

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