Grundig GD-RT-AC3016N User Manual page 138

You can check the checkbox of Save VCA Picture to save the captured pictures of
VCA detection.
Step 3 Select the VCA detection type to Line Crossing Detection.
Step 4 Check the Enable checkbox to enable this function.
Step 5 Click to configure the trigger channel, arming schedule, linkage action and PTZ
linking for the line crossing detection alarm.
Step 6 Click the Rule Settings button to set the line crossing detection rules.
1) Select the direction to A<->B, A->B or B->A.
A<->B: Only the arrow on the B side shows. When an object goes across the
configured line, both directions can be detected and alarms are triggered.
A->B: Only the object crossing the configured line from the A side to the B side can
be detected.
B->A: Only the object crossing the configured line from the B side to the A side can
be detected.
2) Drag the slider to set the detection sensitivity.
Sensitivity: Range [1-100]. The higher the value is, the more easily the detection
alarm can be triggered.
3) Click OK to save the rule settings and return to the line crossing detection settings
interface.
Step 7 Click
You can use the
Note:
Up to 4 rules can be configured.
and set two points in the preview window to draw a virtual line.
to clear the existing virtual line and re-draw it.
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