NVR User Manual 061220NA 110
region and occupies half of the whole region, the alarm is triggered.
Figure 157, Set Intrusion Crossing Detection Rules
3) Click-OK to save the rule settings and go back to the line crossing detection settings interface.
8. Click and draw a quadrilateral in the preview window by specifying four vertexes of the detection
region, and right click to complete drawing. Only one region can be configured.
9. (Optional) You can use to clear the existing virtual line and re-draw it.
NOTE: Up to four rules can be configured.
Figure 158, Draw Area for Intrusion Detection
10. Click Apply to save the settings.
9.4 Region Entrance Detection
Purpose
Region entrance detection function detects people, vehicles, or other objects that enter a pre-defined
virtual region from an outside area, and certain actions can be taken when the alarm is triggered.
1. Enter the VCA settings interface, M
enu > Camera > VCA.
2. Select the camera for which to configure the VCA.
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