Dahua DH-XVR5104HS-4KL-I3 User Manual page 202

Click Apply to complete the settings.
Configuring Tripwire Rules
When the target object crosses the tripwire in the defined direction, the system activates alarms.
The tripwire can be configured as a straight line or broken line.

Supports detecting one-way or two-way tripwire crossing.
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Supports multiple tripwires in the same scenario to meet the complexity.
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Supports size filtering for target.
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On the rule line that you added, in the Type list, select Tripwire.
Draw a tripwire.
1) In the Channel list, select the channel that you want to configure the rules for.
2) Click
Tripwire
.
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User's Manual