FlexiDome
DN
IP
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79
Bosch Security Systems
Operating Instructions
V 1.0 | 2006.12
7.12.4
Sensitivity
Sensitivity is available for the
analysis type. The basic
sensitivity of the motion detector can be adjusted for the envi-
ronmental conditions to which the camera is subject. The sen-
sor reacts to variations in the brightness of the video image.
The darker the observation area, the higher the value that must
be selected.
Min. object size
You can specify the number of sensor fields that a moving
object must cover to generate an alarm. This setting prevents
objects that are too small from triggering an alarm. A minimum
value of 4 is recommended. This value corresponds to four sen-
sor fields.
Global change %
You can define the percentage of sensor fields that must regis-
ter a change simultaneously before generating an alarm. This
setting is independent of the sensor fields selected under
Select area. This option allows you to detect, independently of
motion alarms, manipulation of the orientation or location of a
camera resulting from turning the camera mounting bracket, for
instance.
Selecting the area
The areas of the image to be monitored by the motion detector
can be selected. The video image is subdivided into 858 square
sensor fields. You can activate or deactivate each of these fields
individually. If you wish to exclude particular regions of the
camera's field of view from monitoring due to continuous move-
ment (by a tree in the wind, etc.), the relevant fields can be
deactivated.
1.
Click
Select area
to configure the sensor fields. A new win-
dow opens.
2.
If necessary, click
Clear all
first to clear the current selec-
tion (fields marked red).
3.
Left-click the fields to be activated. Activated fields are
marked red.
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