
Deactivates the entire camera image.
– Tool
Defines the shape of the mouse pointer.
– Settings
Displays the Editor Settings dialog box. In this dialog box you can change the sensitivity
and the minimum object size.
Tamper detection
You can 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.
The options for tamper detection can only be set for fixed cameras. Dome cameras or other
motorized cameras cannot be protected in this manner as the movement of the camera itself
causes changes in the video image that are too great.
Scene too bright
Select the check box if tampering associated with exposure to extreme light (for instance,
shining a flashlight directly on the lens) should trigger an alarm. The average brightness of the
scene provides a basis for recognition.
Global change
Select the check box if the changes, set with the Global change slider, should lead to trigger
an alarm.
Move the slider to set how large the changes in the video image must be for an alarm to be
triggered. Set a high value if changes that occur simultaneously in few areas should lead to
trigger an alarm. Set a low value if changes that occur simultaneously in a large number of
areas should lead to trigger an alarm. This setting allows you to detect, independently of
motion alarms, manipulation of the orientation or location of a camera resulting from turning
the camera mount bracket.
This setting is independent of the areas selected in the Select Area window (see Select Area
dialog box, page 190).
Scene too dark
Select the check box if tampering associated with covering the lens (for instance, by spraying
paint on the lens) should trigger an alarm. The average brightness of the scene provides a
basis for recognition.
Scene too noisy
Select the check box 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.
Audio Alarm page
Some encoders can create alarms on the basis of audio signals. You can configure signal
strengths and frequency ranges in such a way that false alarms, for example due to machine
noise or background noise, are avoided.
Note: First set up normal audio transmission before you configure the audio alarm.
See Audio page, page 198
Audio alarm
Select On if you want the device to generate audio alarms.
Name
Enter a unique and clear name. The name makes it easier to identify the alarm in extensive
video monitoring systems.
24.8.3
24.9
Bosch Video Management System Encoders / Decoders page | en 191
Bosch Sicherheitssysteme GmbH Configuration Manual 2013.07 | V1 | Configuration Client
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