Camera Browser Interface
Setting up VCA | en
83
Bosch Security Systems
Software manual
AM18-Q0649 | v5.8 | 2013.06
the triggering condition still exists. If the original condition has
been restored before this time interval elapses, the alarm is not
triggered. This avoids false alarms triggered by short-term
changes, for example, cleaning activities in the direct field of
vision of the camera.
Global change (slider)
Set how large the global change in the video image must be for
an alarm to be triggered. This setting is independent of the
sensor fields selected under
Select Area
. Set a high value if
fewer sensor fields need to change to trigger an alarm. With a
low value, it is necessary for changes to occur simultaneously in
a large number of sensor fields to trigger an alarm. This option
allows detection, independently of motion alarms, manipulation
of the orientation or location of a camera resulting from turning
the camera mount bracket, for example.
Global change
Activate this function if the global change, as set with the
Global change slide control, should trigger an alarm.
Scene too bright
Activate this function if tampering associated with exposure to
extreme light (for instance, shining a flashlight directly on the
objective) should trigger an alarm. The average brightness of
the scene provides a basis for recognition.
Scene too dark
Activate this function if tampering associated with covering the
objective (for instance, by spraying paint on it) should trigger
an alarm. The average brightness of the scene provides a basis
for recognition.
Scene too noisy
Activate this function if tampering associated with EMC
interference (noisy scene as the result of a strong interference
signal in the vicinity of the video lines) should trigger an alarm.
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