Digital Watchdog MEGApix DWC-MT95WiATW, User Manual, Page: 32 / 61

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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.
6. Set the schedule of the line crossing alarm. The setup steps of the schedule are
the same as the schedule recording setup (See
Schedule Recording ).
※
Configuration of the 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.
5.4.3 Perimeter Intrusion
Perimeter Intrusion: Alarms will be triggered if the target intrudes into the
pre-defined areas. This function can apply to important supervision places,
danger areas and prohibited areas, like military administrative zones, high
danger areas, no man’s areas, etc.
Go to Config
>
Event
>
Perimeter Intrusion interface as shown below.