User guide
SerVision MVG 400 System Guide
Configuring the MVG 400 103
elapsed. If less than 15 seconds pass at the end of event A before additional motion is
detected, event A is extended to include the additional motion.
Separate events are also defined when the maximum event length is reached. For example, if
the maximum length of an event is 30 minutes, new events are generated every 30 minutes
even if motion was detected without interruption during the entire period.
Consider, for example, a camera that is set up in a train station. During peak hours, there is
usually constant motion. During off hours, lengthy intervals between motion events are
common. The debounce interval is 30 seconds, and the maximum event length is 1800
seconds (30 minutes). During peak hours, event-triggered recording generates continuous
recording because VMD events are constantly detected. However, the video is divided into
30-minute events, making it easy to check the video to see what happened during a particular
time range. During off-peak hours, events are typically much shorter, and recording is not
continuous.
About Responses to VMD Events
You can configure the unit to respond to VMD events in any or all of the following ways:
• Upload video of the event to an AVV server on the internet (see Automatically
Uploading Video to an AVV Server, page 87). If e-mail notification recipients are defined
in the
SMS and E-mail screen, an e-mail message is sent to all the recipients when the
VMD event begins and a second e-mail is sent when the video is successfully uploaded
and is available for downloading by users. The e-mail notification includes a link to the
video file on the server and a picture of the event. (Note that the file transfer starts at the
end of the VMD event to ensure that it encompasses the entirety of the event.)
• Send VMD event notifications to the SMS and/or e-mail recipients defined for the
system (see SMS and E-mail Notifications, page 81). E-mail notifications can optionally
include a picture of the event, and, if AVV is activated, a link to video of the event.
• Turn an activator on or off.
• Move any PTZ camera connected to the MVG 400 that supports presets to a preset
location.
These actions can be implemented when the event begins, when it ends, or both.
Configuring VMD Settings
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To configure video motion detection (VMD):
1. In the Camera configuration screen, under Motion Detection (VMD), select Enabled.
The fields required to configure the VMD settings are added to the screen: