Intrusion detection system and a method therefor

Details Intrusion detection system and a method therefor Intrusion detection system and a method therefor

G - Physics

08

B

340/124.3

G08B 13/24 (2006.01) G08B 13/19 (2006.01) G08B 29/18 (2006.01)

Patent

CA 1314957

PATENT A B S T R A C T In the present invention, a dual sensing intrusion detection system is disclosed. A passive infrared radiation detection sensor generates a first output signal in response to the detection of an intruder in the volume of space. A second detection sensor is directed to the same volume of space and generates a second output signal in response to detection of the intruder. A switch activates the second detection sensor in response to the detection of the intruder by the infrared radiation detector. Logic circuit receives the first and second output signals and produces an alarm signal in response thereto to indicate the detection of the presence of the intruder in the volume of space.

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