Dahua DH-XVR5104HS-4KL-I3 User Manual page 168

Configure the settings for the motion detection parameters.
Table 5-31 Motion detection parameters
Parameter
Channel
Region
Enable
PIR Alarm
Schedule
Anti-Dither
Motion
Description
In the Channel list, select a channel to set the motion detection.
Click Setting to define the motion detection region.
Enable or disable the motion detection function.
PIR function helps enhancing the accuracy and validity of motion detect.
It can filter the meaningless alarms that are activated by the objects such
as falling leaves, flies. The detection range by PIR is smaller than the field
angle.
PIR function is enabled by default if it is supported by the cameras.
Enabling PIR function will get the motion detect to be enabled
automatically to generate motion detection alarms; if the PIR function is
not enabled, the motion detect just has the general effect.
Only when the channel type is CVI, the PIR function can be enabled.

If the camera does not support PIR function, it will be unusable.

If the Device does not support PIR function, it will not be displayed

on the page.
Define a period during which the motion detection is active.
Configure the time period from end of event detection to the stop of
alarm.
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User's Manual