When the configured area is covered and cannot be monitored normally, the alarm is triggered and the device takes certain alarm response actions.
Steps
1. Go to Configuration → Event → Basic Event → Video Tampering.
2. Select the channel number.
3. Check Enable.
4. Set the Sensitivity. The higher the value is, the easier to detect the area covering.
5. Click Draw Area and drag the mouse in the live view to draw the area.
Stop Drawing Finish drawing.
Clear All Delete all the drawn areas.
Figure 6-3 Set Video Tampering Area
6. Refer to Set Arming Schedule for setting scheduled time. Refer to Linkage Method Settings for setting linkage method.
7. Click Save.