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5. PIR Detection Zone
This camera has a new patented PIR design which allows the
detection range to reach to 22 m in good environments. The following
picture shows the compared detection zone between normal PIR and
the new patented PIR.
The PIR detection angle (
α
) is smaller than the field of view (FOV) (
β
).
The advantage of this design is to reduce empty an empty
picture’s rate and capture most, if not all, objects in motion.
α =
Detection angle
β =
F. O. V. Angle
■
normal PIR
■
new patented PIR
