Dahua NVR41-4KS2 Series User Manual

User's Manual
248
4.7.2.4.5 Crowd Gathering
Background Information
System can generate an alarm once the people amount gathering in the specified zone is larger than
the threshold.
Procedure
Step 1 In the
Type
drop-down list, select
Crowd Gathering Estimation
.
The interface is shown as below. See Figure 4-147.
Figure 4-147
Step 2 Draw the detection rule.
1) Click to draw the rule on the surveillance video. See Figure 4-148.

Dahua NVR41-4KS2 Series Specifications

General

Brand	Dahua
Model	NVR41-4KS2 Series
Category	Network Hardware
Language	English