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Network Video Recorder User Manual
107
Time Threshold
The time an object loiter in the region. When the duration of the object in the defined
detection area exceeds the threshold, the device will trigger an alarm.
Sensitivity
Sensitivity is the object size which is able to trigger an alarm. The higher the sensitivity is,
the more easily the detection alarm will be triggered.
3) Click Draw Area.
4) Draw a quadrilateral in the preview window.
8. Optional: Draw the maximum size/minimum size for targets.
Note
Only the targets in the size ranging from maximum size to minimum size will trigger Intrusion
detection.
1) Click Max. Size/Min. Size.
2) Draw an area in preview window.
3) Click Stop Drawing.
9. Optional: Select Target of Interest as Human Body or Vehicle to discard alarms which are not
triggered by human body or vehicle.
10. Set the arming schedule. Refer to Configure Arming Schedule.
11. Set linkage actions. Refer to Configure Linkage Actions.
12. Click Apply.
6.3.3 Region Entrance Detection
Region entrance detection detects objects that enter a predefined virtual region.
Steps
1. Go to Smart Analysis → Smart Event Settings → Perimeter Protection.
2. Select a camera.
3. Click Region Entrance Detection.
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