Dahua HCVR5104C User Manual page 558

Please refer to the following sheet for detailed information.
Parameter Function
Enable MD You need to check the box to enable motion detection function.
Please select a channel from the dropdown list.
Enable PIR PIR function help enhance the motion detect accuracy and validity.
It is to filter the false alarm triggered by leaves, small fly and
insects. The PIR detection zone is smaller than the camera angle
of view.
The PIR function is enabled by default if the connected remote
device supports the PIR function. When the PIR function is on,
motion detection function is on by default. The motion detect event
Figure 5- 71
Figure 5- 72
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