Digital Video Recorder User Manual
135
The sudden scene change detection and the line crossing detection cannot be enabled at the same
channel.
9.4 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 Go to Menu > Camera > VCA.
Step 2 Select the camera to configure the VCA.
You can check 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, linkage action and PTZ linking
for the intrusion 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) Drag the slider to set the detection sensitivity.
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.
3) 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 9-8 Set Intrusion Crossing Detection Rules
4) Click OK to save the rule settings and back to the line crossing detection settings interface.
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