71
/160
Determining the Installation Position
© MOBOTIX AG • Security-Vision-Systems • Made in Germany
www.mobotix.com • [email protected]
2.1.1 Positioning a Hemispheric Camera
A hemispheric camera is primarily suited to providing an excellent overview, and less
suitable for more exact details. Due to its inherent physical and optical properties, the
precision of the lens decreases as the distance from the lens grows. This means that
themaximum usable image area greatly varies with the purpose of the camera. People,
for example, may be identified very well at distances of up to 1.5 m/5 ft, and with
sufficient detail at up to 3 m/10 ft. Objects can be recognized even at
distances of 5 m/16.4 ft and more from the camera.
Ceiling-Mounted
A single S15 sensor module can monitor an entire room right into each of the four corners
(360° Panorama View) thanks to its hemispheric lens. The camera should ideally be
positioned on the ceiling in the center of the room. Rooms with a square floor area of up
to approx. 40 m² generally allow the recognition of detail even at the borders of the full
image. If you would only like to know if persons enter a room or to monitor specific objects,
rooms with a floor area of well over
100 m² can also be monitored using
a single sensor module.
Discreet ceiling instal-
lation with minimally
visible technology
The
image quality
(precision) diminishes as the dis-
tance of an object to the camera focus point incre-
ases: 1 very good, 2 good, 3 satisfactory
Capture of entire room
Di
am
ete
r: 50
mm/2 in
