Bosch NBN-733, Руководство пользователя программного обеспечения, Страница: 83 / 111

90 en | Setting up VCA Camera Browser Interface
AM18-Q0635 | v5.6 | 2013.01 Software manual Bosch Security Systems
Debounce time 1 s
The debounce time prevents very brief alarm events from
triggering individual alarms. If the Debounce time 1 s option is
activated, an alarm event must last at least 1 second to trigger
an alarm.
Selecting the area
Select the areas of the image to be monitored by the motion
detector. The video image is subdivided into square sensor
fields. Activate or deactivate each of these fields individually. To
exclude particular regions of the camera's field of view from
monitoring due to continuous movement (by a tree in the wind,
for example), the relevant fields can be deactivated.
1. Click Select Area to configure the sensor fields. A new
window opens.
2. If necessary, click Clear All first to clear the current
selection (fields marked red).
3. Left-click the fields to be activated. Activated fields are
marked red.
4. If necessary, click Select All to select the entire video-
frame for monitoring.
5. Right-click any fields to deactivate.
6. Click OK to save the configuration.
7. Click the close button ( X ) in the window title bar to close
the window without saving the changes.
12.2.4 Tamper detection
Detect tampering of cameras and video cables by means of
various options. Run a series of tests at different times of the
day and night to ensure that the video sensor is operating as
intended.
Sensitivity and Trigger delay [s] can only be changed if
Reference check is selected.
Sensitivity
The basic sensitivity of the tamper detection can be adjusted
for the environmental conditions to which the camera is
subject. The algorithm reacts to the differences between the