Alarm; Detect Alarm; Motion Detect - Dahua NVR4108-P User Manual

4.11 Alarm

4.11.1 Detect Alarm

In the main menu, from Setting to Detect, you can see motion detect interface. See Figure 4-81.There
are three detection types: motion detection, video loss, tampering.

4.11.1.1 Motion Detect

After analysis video, system can generate a motion detect alarm when the detected moving signal
reached the sensitivity you set here.
Detection menu is shown as below. See Figure 4-81.

Event type: From the dropdown list you can select motion detection type.

Channel: Select a channel from the dropdown list to set motion detect function.

Enable: Check the box here to enable motion detect function.

Region: Click select button, the interface is shown as in Figure 4-82. Here you can set motion
detection zone. There are four zones for you to set. Please select a zone first and then left drag the
mouse to select a zone. The corresponding color zone displays different detection zone. You can
click Fn button to switch between the arm mode and disarm mode. In arm mode, you can click the
direction buttons to move the green rectangle to set the motion detection zone. After you completed
the setup, please click ENTER button to exit current setup. Do remember click save button to save
current setup. If you click ESC button to exit the region setup interface system will not save your
zone setup.

Sensitivity: System supports 6 levels. The sixth level has the highest sensitivity.

Anti-dither: Here you can set anti-dither time. The value ranges from 5 to 600s. The anti-dither time
refers to the alarm signal lasts time. It can be seem as the alarm signal activation stays such as the
buzzer, tour, PTZ activation, snapshot, channel record. The stay time here does not include the latch
time. During the alarm process, the alarm signal can begin an anti -dither time if system detects the
local alarm again. The screen prompt, alarm upload, email and etc will not be activated. For example,
if you set the anti-dither time as 10 second, you can see the each activation may last 10s if the local
alarm is activated. During the process, if system detects another local alarm signal at the fifth
second, the buzzer, tour, PTZ
Figure 4-80
activation, snapshot, record channel will begin another 10s while the
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