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Network Speed Dome & Positioning System User Manual
67
area, such as exhibits on display. When it occurs, the device takes linkage actions as response.
Before You Start
You need to enable Smart Event on the VCA Resource page to show the configuration page. See
Allocate VCA Resource for instructions.
Steps
1. Go to Open Platform → Smart Event → Object Removal Detection.
2. Check Enable.
3. Optional: Click Lock to lock PTZ control to prevent the interruption from other PTZ related
action during configuration.
Normally, the PTZ control is automatically locked when you enter the configuration interface.
You can manually resume the lock when the countdown is over.
4. Adjust the live image to the desired scene by using PTZ control buttons.
5. Draw detection area.
1) Select a Region No.. Up to 4 regions can be set.
2) Click Detection Area.
3) Click on the live image to draw the boundaries of the detection area, and right click to
complete drawing.
6. Optional: Set the minimum size and the maximum size for the target to improve detection
accuracy. Only targets whose size are between the maximum size and the minimum size trigger
the detection.
1) Click Max. Size, and drag the mouse on live image. If you want to change the size, click the
button and draw again.
2) Click Min. Size, and drag the mouse on the live image. If you want to change the size, click the
button and draw again.
7. Set detection parameters.
Sensitivity
The value of the sensitivity defines the size of the object which can
trigger the alarm, when the sensitivity is high, a very small object can
trigger the alarm.
Threshold
The threshold is the time of the objects removed from the area. If you
set the value as 10, alarm is triggered after the object disappears
from the area for 10 seconds.
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