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Network Video Recorder User Manual
125
Intrusion Detection
Check Enable Intrusion Detection.
Optionally, check Save VCA Picture to save the captured pictures of intrusion detection.
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 the targets in the size ranging from
max. size to min. size will trigger intrusion detection.
1) Click Max. Size/Min. Size.
2) Draw an area in preview window.
3) Click Stop Drawing.
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