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4.10.1.2 Tampering
When someone maliciously masks the lens, or the video is in one-color due to the environment's
lighing, the system can alert you to guarantee video continuity. The tampering interface is shown as
in Figure 4-73. You can enable the "Alarm output" or "Show message" function when a tampering
alarm occurs.
Sensitivity: The value ranges from 1 to 6. This is based on the brightness. The highest sensitivity
is 6 and lowest is 1. The default value is 3.
Tips:
You can enable a preset/tour/pattern operation when video loss occurs.
Please refer to chapter 4.10.1.1 motion detection for detailed information.
Note:
In the Detect interface, the copy/paste function is only valid for the same detection type. This
means you can not copy a channel setup in the video loss mode to the video masking mode.
Default function limitations: Since the detection channel and detection type may not be the same,
the system can only restore the default settings of current detect type. For example, if you click
the Default button on the video masking interface, only the video masking settings will be restored
to their defaults. The other detection types will remain unchanged.
The system only enables the video masking function during the period you set here. It does not
effect motion detect or video loss periods.
4.10.1.3
Video Loss
In Figure 4-69, select the Video Loss menu. You can see the interface is shown as in Figure 4-74.
This function informs you when video loss occurrs. You can enable the alarm output channel and
then enable the show message function.
You can refer to chapter 4.10.1.1 Motion detect for detailed information.
Tips:
Figure 4-73
73
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