User's Manual

Network Video Recorder User Manual
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9.3 Intrusion Detection
Purpose:
Intrusion detection function detects people, vehicle or other objects which enter and loiter in a
pre-defined virtual region, and some certain actions can be taken when the alarm is triggered.
Step 1 Enter the VCA settings interface.
Menu> Camera> VCA
Step 2 Select the camera to configure the VCA.
You can click the checkbox of Save VCA Picture to save the captured pictures of VCA
detection.
Step 3 Select the VCA detection type to Intrusion Detection.
Step 4 Check the Enable checkbox to enable this function.
Step 5 Click to configure the trigger channel, arming schedule and linkage actions for the line
crossing detection alarm.
Step 6 Click the Rule Settings button to set the intrusion detection rules. Set the following
parameters.
1) Threshold: Range [1s-10s], 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 set time,
the alarm will be triggered.
2) Click-and-drag the slider to set the detection sensitivity.
3) Sensitivity: Range [1-100]. The value of the sensitivity defines the size of the object which
can trigger the alarm. The higher the value is, the more easily the detection alarm can be
triggered.
4) Percentage: Range [1-100]. Percentage defines the ratio of the in-region part of the
object which can trigger the alarm. For example, if the percentage is set as 50%, when
the object enters the region and occupies half of the whole region, the alarm is
triggered.
Figure 9-5 Set Intrusion Crossing Detection Rules