Operation Manual

events that occur in quick succession from triggering several
alarms and successive events in a rapid sequence. No further
alarm is triggered during the aggregation time.
The post-alarm time set for alarm recordings only starts once
the aggregation time has expired.
Analysis type
Select the required analysis type from the drop-down menu.
Different analysis types offer varying levels of control over alarm
rules, object filters and tracking modes.
Refer to the VCA documentation for more information on using
these.
Click Configuration to set up the analysis type.
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.
Reference check
Save a reference image that can be continuously compared with
the current video image. If the current video image in the
marked areas differs from the reference image, an alarm is
triggered. This detects tampering that would otherwise not be
detected, for example, if the camera is turned.
1. Click Reference to save the currently visible video image as
a reference.
2. Click Mask... and select the areas in the reference image
that are to be monitored.
3. Check the box Reference check to activate the on-going
check. The stored reference image is displayed in black and
white below the current video image, and the selected
areas are marked in yellow.
10.2.2
10.2.3
Camera Browser
Interface
Setting up VCA | en 77
Bosch Security Systems 2016.09 | v1.632 | AM18-Q0718