Pocket Camera
SG570-6M
Appendix
Ⅰ
: PIR Detection Zone
Appendix I: PIR Detection Zone
The figure4 shows the detection range in different detection angle.
When the detection angle is 35°,the detection range is 50ft. When the
detection angle is 52°,the detection range is 30ft.
Figure 4
The PIR detection angle (
α
) is just barely larger than the field of
view angle(
β
). The advantage of this design is to avoid empty pictures
and get available pictures.
Figure
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