HIKVISION DC-2CD20 Series User Manual page 85

Steps:
1. Check the Enable Intrusion Detection checkbox.
2. Click Draw Area, and then draw a rectangle on the image as a defense region.
Note: when you draw the rectangle, all lines should connect end to end to each
other. Up to four areas are supported.
You can click Clear to clear the areas you drawn.
The defense region parameters can be set separately.
3. Choose the region to be configured.
 Threshold: Range [0-10s], the threshold for the time of the object
loitering in the region. If you set the value as 0, alarm is triggered
immediately after the object entering the region.
 Sensitivity: Range [1-100]. The value of the sensitivity defines the size of
the object which can trigger the alarm, when the sensitivity is high, a very
small object can trigger the alarm.
 Percentage: Range [1-100]. Percentage defines the ratio of the in-region
part of the object which can trigger the alarm. For example, when you set
the percentage as 50%, half of the object entering the region will trigger
the alarm.
Arming Schedule is configured to set the time you want the function to be
User Manual of Network Camera
Figure 6-53 Configuring Intrusion Area
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