Network Video Recorder User Manual
154
Please refer to the User Manual of Network Camera for the detailed instructions for the vehicle
detection.
11.4 Line Crossing Detection
Purpose:
This function can be used for detecting people, vehicles and objects cross a set virtual line. The line
crossing direction can be set as bidirectional, from left to right or from right to left. And you can set
the duration for the alarm response actions, such as full screen monitoring, audible warning, etc.
Step 1 Go to Menu> Camera> VCA.
Step 2 Select the camera to configure the VCA.
You can click 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 (Optional) Check the checkbox to enable the Discard False Alarm of Human Body to discard
non-human body pictures and video files which are not triggered by line crossing detection.
Step 6 Click to configure the trigger channel, arming schedule and linkage actions for the line
crossing detection alarm.
Step 7 Click the Rule Settings button to set the line crossing detection rules.
1) Select the direction to A<->B, A->B or A<-B.
A<->B: Only the arrow on the B side shows; when an object going across the configured
line with both direction 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) Click-and-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.
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