Motion detection system and method with null points

Details Motion detection system and method with null points Motion detection system and method with null points

G - Physics

08

B

G08B 13/24 (2006.01) G01S 13/04 (2006.01)

Patent

CA 2752192

A motion detection system and method with null points with a motion detection method including transmitting a signal (102); detecting the signal at a first device (104); determining whether signal strength of the detected signal is less than an expected signal strength (106); transmitting at least one additional signal (108); detecting the at least one additional signal at the first device (110); determining whether signal strength of the detected at least one additional signal is less than the expected signal strength (112); and determining that the first device is in a null point when the signal strength of the detected signals is less than the expected signal strength for a predetermined number of the detected signals (114).

L'invention concerne un système et un procédé de détection de mouvement avec des points nuls, le procédé de détection de mouvement consistant à transmettre un signal (102) ; détecter le signal dans un premier dispositif (104) ; déterminer si l'intensité de signal du signal détecté est inférieure à une intensité de signal attendue (106) ; transmettre au moins un signal supplémentaire (108) ; détecter le ou les signaux supplémentaires dans le premier dispositif (110) ; déterminer si l'intensité de signal du ou des signaux supplémentaires détectés est inférieure à l'intensité de signal attendue (112) ; et déterminer si le premier dispositif est à un point nul lorsque l'intensité de signal des signaux détectés est inférieure à l'intensité de signal attendue pour un nombre prédéterminé des signaux détectés (114).

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