DH Network Camera
Product Construction Instruction Manual (Passenger Flow Solution)
11
Angle-mounting manner:
Focal length
Installation
Height
Maximum detection
width
Installation angle
2.1 mm
2.2-3.3 m
Maximum detection
width 5 m
30-70°
2.8 mm
2.5-3.8 m
Maximum detection
width 4 m
30-70°
Angle-mounting-the pairing of parameters is given as follows:
Focal length
(m)
Installation
height
(m)
Installation
angle/°
Surveillance width
W
(m)
Surveillance
length L
(m)
2.1
2.2
30
2.4
3.1
45
1.7
3.3
70
1.3
1.2
2.75
30
6
2.9
45
4.25
3.2
70
3.2
2.4
3.3
30
9.4
2.5
45
6.65
2.9
70
5
3.8
2.8
2.5
30
2.8
3.4
45
2
3.2
70
1.5
1.1
3.2
30
5.8
2.8
45
4.1
3.2
70
3.1
2.2
3.8
30
8.2
2.2
45
5.8
2.8
70
4.4
3.1
Passenger flow products are mostly installed at entrance and exit ceiling to monitor entrances
and exits. Here comes an issue: Some scenarios feature a high top door edge, blocking the line of
sight and affecting the detection rate. With this factor and the field of view (FOV) of the camera in
