Dahua Smart 1U User Manual page 135

Configure the settings for the motion detection parameters. See Table 5-34.
Parameter Description
Channel In the Channel list, select a channel to set the motion detection.
Region Click Setting to define the motion detection region.
Enable MD 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
Enable PIR
effect.



Period Define a period during which the motion detection is active.
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 interface.
Local Configurations 125