Event Configuration; Video Tampering Detection - Digital Watchdog MEGAPIX DWC-MB94Wi28T User Manual

Event Configuration

The Event Configuration menu includes setup for video tampering, line crossing and intrusion. For improved
accuracy, consider the following before installation:
• Cameras should be installed on a stable surface. Vibrations can have an impact on the detection accuracy.
• Avoid pointing the camera at reflective surfaces (such as shiny floors, mirrors, glass, lake surfaces, etc.).
• Avoid narrow places or places that have too many shadows.
• Avoid cases where the detection object's color is similar to the background color.
• At any time, avoid over- and underexposure and make sure the image of the camera is clear.

4.4.1 Video Tampering Detection

The camera can trigger events based on scene change, video blur and color changes.
•
Enable the camera tampering events by checking the box next to the ones needed.
o Scene change detection: When the camera's scene changes, an alarm is triggered.
o Video blur detection: When the camera's video becomes blurry, an alarm is triggered.
o
Abnormal color detection: When the camera's image becomes obscure, an alarm is triggered.
• Alarm Holding Time: Set the time between each event notification.
•
Trigger Alarm Out: For cameras with an alarm output connection, check the box for the camera to trigger
the alarm output.
• Trigger SD Snap: Check the box to send a screenshot to the SD card when motion is detected.
• Trigger SD Recording: Check the box to send a video recording to the SD card when motion is detected.
• Trigger E-mail: Check the box to set out an e-mail notification when motion is detected. Enter the e-mail
addresses to receive the notification. To send the e-mail to more than one e-mail address, separate the
accounts with a comma. Check the box next to "Attach Picture" to include a screenshot of the event. Enter
the e-mail subject and any notes, if needed, in the content field. The sending e-mail address must be set in
the E-mail configuration interface before e-mail notifications can work.
• Trigger FTP: Check the box to send a screenshot of the event to an FTP server. Enter the server's address
in the field. See the FTP configuration section for more information.
To set the camera's sensitivity to these external changes, open the "Sensitivity" and adjust the sensitivity bar.
Scene change detection: The higher the value, the smaller changes in the scene will trigger an event
Video blur detection: The higher the value, the small amount of blurriness in the image will trigger an event.
Abnormal color detection: The higher the value, the subtle color changes in the image will trigger an event.
※ Camera and surrounding area configuration considerations:
1. Auto-focusing should not be enabled for line crossing detection.
2. Avoid scenes with excessive light changes.
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