User Manual
DS-720xHTI-Kx DVR User Manual
UM DS-720xHTI-Kx 012918NA 123
9.12 Object Removal Detection
Purpose
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 the alarm is triggered.
Refer to
9.4 Intrusion Detection
for steps to configure object removal detection.
Threshold [5s-20s] in the Rule Settings defines the time the objects have been removed from the
region. If value is 10, an alarm is triggered if the object disappears from the region for 10s. Sensitivity
defines the similarity of the background image to the object. When the sensitivity is high, a very small
object taken from the region will trigger the alarm.
Up to four rules can be configured.
9.13 Audio Exception Detection
Purpose
Audio exception detection function detects the abnormal sounds in the surveillance scene such as the
sudden increase/decrease of the sound intensity, and certain actions can be taken when the alarm is
triggered.
The audio exception detection is supported by all analog channels.
1. Go to Menu > Cameras Setup > VCA.
2. Select the camera to configure the VCA.
3. Check the Save VCA Picture checkbox to save the captured VCA detection pictures.
4. Set the VCA detection type to Audio Exception Detection.
5. Click Set to configure the trigger channel, arming schedule, linkage action, and PTZ linking for the
audio exception alarm.
6. Click Rule Settings to set the audio exception rules.