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CCTV cameras are strongly suggested to be installed in the height
- more than 2.5 meters
The camera shall look downward beyond 30 degree horizontally
(Please refer Pic. 2.7-7)
(b). High ceiling indoor space (Ceiling higher than four meters)
The camera shall look downward beyond 45 degree horizontally
(c).Outdoor space
Do not put the camera over 45 degree of Horizontal angles
(a) Correct (Angle <45) (b) Prohibited (Angle >=45)
(c) Correct (Angle<45)
(d) Prohibited (Angle>=45)
Pic. 2.7-7 Interior space (Height < 4 meters) camera depression angel
Avoid the camera looking directly to strong light sources
The camera shall avoid looking directly at the strong light such as sunlight, which may cause
detection faults
Lighting environment factor
The VFDS™ detection area has to be better with uniform illumination referring to picture
2.7-8(a). The unbalanced illumination condition may cause VFDS detection error, refer to
picture 2.7-8(b).
