TP-Link Tapo C320WS Guide De L'utilisateur page 19

Line-Crossing Detection
Add one or more lines that should not be crossed, then if the set line is
crossed, the camera will send you notifications or even sound an alarm.
You can also set the crossing direction and detection schedule. It is
ideal for fence detection, property monitoring, and parking areas.
Area Intrusion Detection
Add one or more activity zones, then when the camera detects
someone enters the set zones, the camera will send you notifications or
even sound an alarm. You can set the detection schedule as needed.
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