User manual

4. Web-based Interface
NDF821/NDF821E l User Manual 45
4.5 Event
When an event occurs, it triggers an alarm and the camera will take a pre-dened action, e.g.,
sending a recorded video clip or JPEG les to a designated server. With this camera, an event can be
triggered by the camera’s detection mechanism.
4.5.1 Motion Detection
When the Motion Detection is enabled, the camera detects motion under a pre-specied condition
within a designated area. When motion is detected, the camera will generate an alarm and then take
a specied action.
TipCautionWarning
Note
Keep the conditions below in mind when you use the motion detection function. Please refer to the
Codec section.

You must select MJPEG codec for one of the streams to enable the live view.

You must select H.264 or MPEG4 codec for one of the streams to process the motion detection.
Conguration

Motion Sensitivity: Specify the sensitivity to moving objects before the camera triggers an
alarm. The higher the sensitivity, the slighter the movement is required to set off an alarm.
You can alternatively select User Dene and enter a value from 1 to 100 in the Customized
Threshold eld. When the motion within a specied area exceeds the threshold, an alarm will be
triggered.
Select the OFF radio button to disable motion detection