Dahua NVR41 series User Manual

User's Manual
275
Figure 4-179
Step 2 To configure the settings for the scene change parameters, see "4.8.5.1 Motion
Detection".
Step 3 The scene change function does not have region and sensitivity items.
Step 4 Click Apply to complete the settings.
● Click
Default
to restore the default setting.
● Click
Copy to
, in the
Copy to
dialog box, select the additional channel(s) that you
want to copy the motion detection settings to, and then click
Apply
.
4.8.5.5 PIR Alarm
When the detected scene has changed, system can generate an alarm.
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.
Step 1 Select
Main Menu
>
ALARM
>
Video Detection
>
PIR Alarm
.
The PIR Alarm interface is displayed. See Figure 4-180.

Dahua NVR41 series Specifications

General

Brand	Dahua
Model	NVR41 series
Category	Network Hardware
Language	English