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User's Manual of ICA-3480/ICA-4480/ICA-3480F/ICA-4480F/ICA-M3580P/ICA-M4580P
② Line Cross Detection (ICA-M3580P/ICA-M4580P only)
The line cross detection function is used to detect whether there is an object in the video that
crosses the set warning surface, and the alarm is linked according to the judgment result.
The specific operation steps are as follows:
Step 1: In the main interface click on the "Configuration → Events → Smart Event →
Line Cross Detection" to enter the Line Cross Detection settings interface, as shown in
Figure 8-33.
Figure 8-33
Step 2: Check "Enable" to enable line cross detection.
Step 3: Select "Warn Line": The system supports setting up to 4 warn line. After selecting a
warn line, you need to make the following settings. After setting, please click "Save" below.
【Warn Line】 Click "Drawing Area" and a line segment with an arrow will appear on the screen.
Click on the line segment, click and drag one of the endpoints to modify the length of the line
segment; or click and drag the position of the line segment with the arrow in the picture to
complete the drawing of a warning surface.
【Clear All】Used to delete the selected alert area.
【Direction】There are three options: "A<->B", "A->B", and "B->A", indicating the direction in
which the object crosses the interface to trigger an alarm. "A->B" means that the alarm will be
triggered when the object crosses from A to B; "B->A" means that the alarm will be triggered
when the object crosses from B to A; "A<->B" means that the object crosses from A to B, or
from B to B, the alarm is triggered, that is, the alarm is triggered in both directions.
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