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3.6.1.4 Object Left Behind
With Object Left Behind, an alarm can be generated when an object which remained in the
detection area for the specified period of time, leaves the specified region. Up to 4 detection
areas can be added. Note that it is recommended NOT to overlap the detection areas when
adding multiple detection areas. Select the checkbox next to Object Left Behind to enable
and click
to configure.
Figure 3-44
1. Once enabled, click
to mark the live view with a detection area. Repeat this step to
add another detection area.
2. Drag the nodes of the detection area to mark the boundary for detection.
3. You can use the following functions to reduce false alarm.
◼ Time Threshold: The minimum period of time for an object to stay within the
detection area for an alarm to trigger.
◼ Sensitivity: Move the slider to adjust the detection sensitivity.
4. For Trigger Actions and Plan, follow Step 6 ~ 7 at the bottom of 3.6.1.1 Cross Line.
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