I Series Network Video Recorder User Manual, 030117NA
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Threshold
[5s-20s] in Rule Settings defines the time the objects must be left in the region to generate
an alarm. If the value is 10, an alarm is triggered if the object is left and stays in the region for 10
seconds.
Sensitivity
defines similarity of the object to the background. When the sensitivity is high, a
very small object left in the region can trigger the alarm.
Up to four rules can be configured.
10.7
Object Removal Detection
The Object Removal Detection function detects objects removed from a pre-defined region such as exhibits on
display, and a series of actions can be taken when an alarm is triggered.
NOTES:
Refer to
Chapter 9.4 Intrusion Detection
for steps to configure Object Removal Detection.
Threshold
[5s-20s] in Rule Settings defines the time that has passed after the objects have been
removed from the region. If the value is 10, an alarm is triggered after the object disappears from the
region for 10 seconds.
Sensitivity
defines similarity of the object to the background. When the
sensitivity is high, a very small object taken from the region can trigger the alarm.
Up to four rules can be configured.
10.8
Audio Exception Detection
The Audio Exception Detection function detects abnormal sounds in the surveillance scene such as the sudden
increase/decrease of sound intensity, and certain actions can be taken when the alarm is triggered.
1.
Enter the VCA settings interface, Menu > Camera > VCA.
2.
Select the camera in which to configure the VCA.
3.
Click the Save VCA Picture checkbox to save the captured VCA detection pictures.
4.
Select Audio Exception Detection as the VCA detection type.
5.
Click
Set
button to configure the trigger channel, arming schedule, and linkage action for the face detection
alarm.
6.
Click the Rule Settings button to set the audio exception rules.