User Manual

DS-73xxHUI-K4, DS-73xxHQI-K4, DS-90xxHUI-K8 DVR User Manual
UM DS-73xxHUI-K4 DS-73xxHQI-K4 DS-90xxHUI-K8 092017NA 137
9.11 Unattended Baggage Detection
Purpose
The unattended baggage detection function detects objects left in a pre-defined region
such as baggage, purse, dangerous materials, etc., and a series of actions can be taken
when the alarm is triggered.
•
Threshold [
5s-20s] in the Rule Settings defines the time of the objects left in the
region. If you set the value to 10, an alarm is triggered after the object is left and stays
in the region for 10s.
•
Sensitivity defines the similarity degree of the background image. When the
sensitivity is high, a very small object left in the region can trigger the alarm.
•
Up to four rules can be configured.
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.
•
Threshold [5s-20s] in the Rule Settings defines the time of the objects removed from
the region. If you set the value to 10, an alarm is triggered after the object disappears
from the region for 10s.
•
Sensitivity d
efines the similar degree of the background image. If the sensitivity is high,
a very small object taken from the region can trigger the alarm.
•
Up to four rules can be configured.
9.13 Audio Exception Detection
Purpose
The audio exception detection function detects abnormal sounds in the surveillance scene
such as sudden increase/decrease in sound intensity, and specific actions can be taken
when the alarm is triggered.
Audio exception detection is supported by all analog channels.
1. Go to Menu > Camera > VCA.
2. Select the camera to configure the VCA.
3. Check the S
ave VCA Picture checkbox to save the captured VCA detection pictures.
4. Set the VCA detection type to Audio Exception Detection.