Dahua NVR100 series User Manual page 436

Check the Object box to enable object detect function.

Period: System can generate an alarm once the object is in the zone for the specified period.
Click to draw the rule. See Figure 5-79.
Now you can draw a rule. Left click mouse to draw a line, until you draw a rectangle, you can right click
mouse.
Click Ok to complete the rule setup.
Figure 5-78
Figure 5-79
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