LTS LTN8916, User Manual, Page: 120 / 202

User Manual of Network Video Recorder
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The NVR supports the VCA detection alarm ( face detection, vehicle detection, line crossing detection and
intrusion detection, region entrance detection, region exiting detection, loitering detection, people gathering
detection, fast moving detection, parking detection, unattended baggage detection, object removal detection,
audio loss exception detection, sudden change of sound intensity detection, and defocus detection ) sent by IP
camera. The VCA detection must be enabled and configured on the IP camera settings interface first.

All VCA detection must be supported by the connected IP camera.

Please refer to the User Manual of Network Camera for the detailed instructions for the all VCA detection
types.
9.1 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.
Steps:
1. Enter the VCA settings interface.
Menu> Camera> VCA
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.
3. Select the VCA detection type to Line Crossing Detection .
4. Check the Enable checkbox to enable this function.
5. Click to configure the trigger channel, arming schedule and linkage actions for the line crossing
detection alarm.
6. 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.
3) Click- OK to save the rule settings and back to the line crossing detection settings interface.