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 139
9.15 Sudden Scene Change
Purpose
The scene change detection function detects change of the surveillance environment
affected by external factors such as intentional rotation of the camera, and specific actions
can be taken when the alarm is triggered.
•
Sensitivity
in the Rule Settings ranges from 1 to 100, and the higher the value, the
more easily the change of scene will trigger the alarm.
•
For analog cameras, line crossing detection and intrusion detection conflict with other
VCA detections such as sudden scene change detection, face detection, and vehicle
detection. You can enable only one function. If you have enabled line crossing
detection or intrusion detection, when you enable sudden scene change detection and
apply the settings, the following attention box pops up to remind you there are not
enough resources and asks you to disable the enabled VCA type(s) of the selected
channel(s).
Figure 186, Disable Other VCA Type(s)
9.16 PIR Alarm
Purpose
A PIR (Passive Infrared) alarm is triggered when an intruder moves within the detector's
field of view. The heat energy dissipated by a person, or any other warm blooded creatures
such as dogs, cats, etc., can be detected.
1. Go to Menu > Camera > VCA.
2. Select the camera to configure the VCA.
3. Check the Save VCA Picture checkbox to save the captured VCA detection pictures.
4. Select the VCA detection type to PIR Alarm.
5. Click Set to configure the trigger channel, arming schedule, linkage action and PTZ
linking for the PIR alarm.
6. Click Rule Settings to set the rules.
7. Click A
pply to activate the settings.