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2. Set alarm trigger options. The setup steps are the same as motion detection. Please refer to
motion detection
chapter for
details.
3. Click “Save” button to save the settings.
4. Set area and sensitivity of the line crossing alarm. Click the “Area and Sensitivity” tab to go to the interface as shown below.
Set the alarm line number and direction. Up to 4 lines can be added. Multiple lines cannot be added simultaneously.
Direction
：
A<->B, A->B and A<-B optional. This indicates the direction of the intruder who crosses over the alarm line that
would trigger the alarm.
A<->B: The alarm will be triggered when the intruder crosses over the alarm line from B to A or from A to B.
A->B: The alarm will be triggered when the intruder crosses over the alarm line from A to B.
A<-B: The alarm will be triggered when the intruder crosses over the alarm line from B to A.
Click the “Draw Area” button and then drag the mouse to draw a line in the image. Click the “Stop Draw” button to stop
drawing. Click the “Clear” button to delete the lines. Click the “Save” button to save the settings.
5. Set the schedule of the line crossing alarm. The setup steps of schedule are the same as the schedule recording (See
Schedule Recording
).
※
Configuration of camera and surrounding area
1. Auto-focusing function should not be enabled for line crossing detection.
2. Avoid the scenes with many trees or the scenes with various light changes (like many flashing headlights). The ambient
brightness of the scenes shouldn’t be too low.
3. Cameras should be mounted at a height of 2.8 meters or above.
4. Keep the mounting angle of the camera at about 45°.
5. The detected objects should not be less than 1% of the entire image and the largest sizes of the detected objects should not
be more than 1/8 of the entire image.
6. Make sure cameras can view objects for at least 2 seconds in the detected area for accurate detection.
7. Adequate light and clear scenery are crucial for line crossing detection.
4.4.3
Intrusion
Intrusion: Alarms will be triggered if the target intrudes into the defined areas.
Go to Analytics
Intrusion interface as shown below.
