10
2.2.3
Drawing Of Human Body Temperature Detection Area
a)
BF3221
（
7mm
）
/BF5421
（
13mm
）
：
i.
The subject stands on the edge of the blackbody (3m away from the camera), faces the camera, and
can see the head and shoulder exposed in the picture;
ii.
The lower border of the rule is drawn on the shoulder of the tested person, and the upper border of
the rule can be drawn to the upper edge of the image; refer to the following figure for the detection
area
b)
BF3221
（
3.5mm
）
/BF5421
（
7.5mm
）
：
iii.
The tested person is standing on the edge of the blackbody (2 meters away from the camera), and the
setting method refers to the 7mm lens;
The setting in the figure below indicates that an audible and visual alarm will be generated when the
head temperature of the subject exceeds 37.3
℃
When the capture angle filter value is 1, only the front side (similar to certificate photo) is detected, and the
value is 90, and the front side is detected
2.2.4
Alarm Temperature Correction
Due to the difference of environment, there may be errors in the temperature of the measured person. If more than
5 person samples stand at the best temperature measurement distance and the measured temperature is generally
high or low, they can be compensated by temperature correction. For example, if it is 0.5
℃
lower, fill in 0.5
℃
for temperature correction, and if it is 0.5
℃
higher, fill in - 0.5
℃
Note: if there is no blackbody on site, when the temperature is corrected, the "enable" in the figure below is