4.2.2 Tampering Alarm
Tampering Alarm is used to detect whether a camera is being physically tampered. An alarm
can be generated when the camera is moved, covered up, or out of focus. The alarm types
include output triggers and email alerts.
Figure 4-7
1. Select
the
Enable
option.
2. Enable
Dark Image
to trigger an alarm when the scene turns dark, e.g. when the lens of
the camera is covered up. By default, this function is disabled.
3. Select the desired detection sensitivity under
Sensitivity
. The higher the value, the more
sensitive the camera is to scene changes.
4. In
the
Dwell Time when triggered (seconds)
field, specify the time length allowed for
scene changes before an alarm is generated.
5. To trigger the e-mail alert when a tampering event occurs, enable
E-Mail Output
.
6. To trigger the output device when a tampering event occurs, enable
I/O Output
.
7. If you want the camera to ignore any movement or scene change in certain areas, click
the screen to drag areas on the camera view. Click
Delete
to delete the latest masked
area. Click
Reset
to delete all masked area.
8. Click
Apply
to save all the settings.
For details on setting up the e-mail server and output device, see
4.2.5 E-Mail
and
4.2.4.2
Output Settings
.
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