Thermopile far infrared radiation detection apparatus for crime prevention
AssigneeMatsuda Micronics Corporation
InventorsTakeshi Asano, Hiroyuki Yajima
Life of this patent
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Abstract
A thermopile far infrared radiation detection apparatus for crime prevention that is capable of detecting with certainty an intruder who is entering a monitoring space regardless of temperature changes of the space or how fast the intruder enters the space. The detection apparatus utilizes three or more thermopiles to detect an intruder into the space and in which output difference between detection values outputted from a pair of said thermopiles is obtained, and then, the intruder is detected by the comparison between these output differences obtained from different pairs of the thermopiles.
Claims6
A thermopile far infrared radiation detection apparatus for crime prevention utilizing three or more thermopiles to detect an intruder into a space, characterized in that:
- an output difference between detection values outputted from a pair of said thermopiles is obtained;
- and said intruder is detected by the comparison between said output differences obtained from different pairs of said thermopiles.
A thermopile far infrared radiation detection apparatus for crime prevention in which thermopiles are arranged in array consisting a plurality of rows and a plurality of columns to detect an intruder into a space, characterized in that:
- an output difference between detection values outputted from a pair of said thermopiles which are aligned in said column direction and an output difference between detection values outputted from a pair of said thermopiles which are aligned in said row direction are obtained;
- and said intruder is detected by the comparison between said output differences.
Dependencies are inferred from the claim text.