User's Manual

Network Video Recorder User Manual
142
Intrusion Detection
Check Enable Intrusion Detection.
(Optional) Check Save VCA Picture to save the captured pictures of intrusion detection.
Select Target of Interest as Human Body or Vehicle to discard intrusion detection pictures
and video files which are not triggered by human body or vehicle.
Follow the steps to set the detection rules and detection areas.
1) Select a Virtual Panel to configure. Up to 4 virtual panels are selectable.
2) Drag the sliders to set Time Threshold, Sensitivity, and Percentage.
Time Threshold: The threshold for the time of the object loitering in the region. When the
duration of the object in the defined detection area is longer than the threshold, device
will trigger an alarm. Its range is [1s-10s].
Sensitivity: The size of the object that can trigger the alarm. The higher the value is, the
more easily the detection alarm can be triggered. Its range is [1-100].
Percentage: The ratio of the in-region part of the object that can trigger the alarm. For
example, if the percentage is 50%, when the object enters the region and occupies half of
the whole region, device will trigger an alarm. Its range is [1-100].
3) Click Draw Region and draw a quadrilateral in the preview window by specifying four
vertexes of the detection region.
Draw the maximum size/minimum size for targets. Only target the size of which is rangers
from max. size and min. size will be trigger line crossing detection.
1) Click Max. Size/Min. Size.