Dahua NVR52-4KS2 Series User Manual page 269

5.9.7.2.1 Tripwire
When the detection target crosses the warning line along the set direction, the system performs an
alarm linkage action.
Procedure
Select Main Menu > AI > Parameters > IVS.
Step 1
Step 2 Select the channel and AI type.
Click Add to add a rule.
Step 3
On the Type list, select Tripwire.
Step 4
Step 5 Draw the detection rule.
1. Click
the image to stop drawing.
Figure 5-133 IVS
to draw a straight line or a curve on the surveillance video image. Right-click
253
User's Manual