Intrusion detection system with signal recognition

Details Intrusion detection system with signal recognition Intrusion detection system with signal recognition

G - Physics

08

B

G08B 13/16 (2006.01)

Patent

CA 2715633

An intrusion detection system comprises an intrusion detector, preferably a microphone for picking up infrasound, and a signal processor. Signals from the detector are split into two channels of different frequency ranges and processed separately in the two channels, and signal characteristics are compared between the two channels. Conclusions are drawn regarding the original signal source, on the basis of the comparison between the two channels.

L'invention porte sur un système de détection d'intrusion qui comprend un détecteur d'intrusion, de préférence un microphone pour capter des infrasons, et un processeur de signaux. Des signaux provenant du détecteur sont scindés en deux canaux de différentes plages de fréquence et traités séparément dans les deux canaux, et des caractéristiques de signal sont comparées entre les deux canaux. Des conclusions sont tirées concernant la source du signal initial, sur la base de la comparaison entre les deux canaux.

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