Vivotek CC8371-HV, Руководство пользователя

Страница: 129 / 368

VIVOTEK
User's Manual - 129
Applications > Tampering detection
This section explains how to set up camera tamper detection. With tamper detection, the
camera is capable of detecting incidents such as
redirection , blocking or defocusing , or
even spray paint .
Please follow the steps below to set up the camera tamper detection function:
1. Enter the tamper trigger duration. (10 sec. ~ 10 min.) The tamper alarm will be triggered
only when the tampering factor (the difference between current frame and pre-saved
background) exceeds the trigger threshold. Conditions such as image too dark, too
bright, or too blurry (defocused) can also be configured as tampering conditions.
2. You can configure Tampering Detection as a trigger element to the proactive event
configurations in
Event -> Event settings -> Trigger.
For example, when the camera is
tampered with, camera can be configured to send pre- and post-event video clips to a
networked storage device. Please refer to page 111 for detailed information.