VideoJet X40

Configuration Using a Web Browser en 67

 

 

5.23.6Select area (MOTION+ only)

The areas of the image to be monitored by the motion detector can be selected. The video image is subdivided into 858 square fields. Each of these fields can be activated or deactivated individually. If you wish to exclude particular regions of the camera's field of view from monitoring due to continuous movement (by a tree in the wind, etc.), the relevant fields can be deactivated.

1.Click Select area to configure the sensor fields. A new window will open.

2.If necessary, click Clear all first to clear the current selection (fields marked yellow).

3.Left-click the fields to be activated. Activated fields are marked yellow.

4.If necessary, click Select all to select the entire video frame for monitoring.

5.Right-click any fields you wish 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.

5.23.7Tamper Detection

You can reveal the 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.

NOTICE!

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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.

 

 

5.23.8Sensitivity

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NOTICE!

This and the following parameter are only accessible if the reference check is activated.

 

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 reference image and the current video image. The darker the observation area, the higher the value that must be selected.

5.23.9Trigger delay (s)

You can set delayed alarm triggering. The alarm is only triggered after a set time interval in seconds has elapsed and then only if the triggering condition still exists. If the original condition has been restored before this time interval elapses, the alarm is not triggered. This allows you to avoid false alarms triggered by short-term changes, for example cleaning activities in the direct field of vision of the camera.

5.23.10Global change

You can 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 you to detect, independently of motion alarms, manipulation of the orientation or location of a camera resulting from turning the camera mount bracket, for instance.

Bosch Security Systems

Installation and Operating Manual

V3.5 2007.12