Dahua DH-XVR5104HS-4KL-I3 User Manual page 229

In the Channel list, select a channel that you want to configure face detection function, and
then enable it.
Configure the parameters.
Table 5-40 Face detection parameters
Parameter
Rule
Schedule
Alarm-out Port
Post-Alarm
Show Message
Face detection
Description
Click View Setting to draw areas to filter the target.
You can configure two filtering targets (maximum size and minimum
size). When the target is smaller than the minimum size or larger than
the maximum size, no alarms will be activated. The maximum size should
be larger than the minimum size.
Define a period during which the detection is active.
For details, see "Setting Motion Detection Period" section in "5.10.4.1
Configuring Motion Detection Settings."
Click Setting to display setting page.
General Alarm: Enable general alarm and select the alarm output
port.
Ext. Alarm: Connect the alarm box to the Device and then enable it.
Wireless Siren: Connect the wireless gateway to the Device and then
enable it. For details, see "5.12 IoT Function. "
When an alarm event occurs, the system links the peripheral alarm devices
connected to the selected output port.
Set a length of time for the Device to delay turning off alarm after the
external alarm is cancelled. The value ranges from 0 seconds to 300
seconds. If you enter 0, there will be no delay.
Select the Show Message checkbox to enable a pop-up alarm message
in your local host PC.
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User's Manual