Bosch Appliances NBN-733, NDN-733 Tamper detection, Debounce time 1 s, Selecting the area

90 en Setting up VCA Camera Browser Interface

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.

12.2.4Tamper 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

AM18-Q0635 v5.6 2013.01 Software manual Bosch Security Systems