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ADVANCED CONFIGURATION
EN
47
Camera Management: Motion
As Motion Detection is the default recording mode
for the DVR, it’s worth taking a moment to ensure it is
properly configured.
If the motion detection sensitivity is too sensitive, then the
DVR will record frequently or continually - any benefit of
motion detection will be lost.
If the motion detection sensitivity is not sensitive
enough, then the DVR will not record when it should
and may not record anything at all.
We think that motion detection is the best way to get your
DVR to operate almost autonomously for long periods of
time (typically weeks to months) without you having to
worry about losing old footage.
Therefore, it’s very important that it’s configured
correctly!
How Motion Detection Works
The way that the DVR looks for motion is quite straight
forward - it’s a process where it compares one frame (that is,
a single image taken approximately a 25th/30th of a second
from the previous image) with the next. A certain amount
of “difference” between these two “frames” is interpreted as
motion.
As a result, the DVR is able to detect when there is a change
in the picture. However, this does not necessarily need to be
something moving in the frame. For example, a light being
turned on or off, a lightning flash or even the sun coming
out momentarily on a cloudy day might be enough to
trigger the motion detection on the DVR. However, as these
events last only a moment (and are relatively rare) they will
only create a few very short redundant clips, which will not
take up too much space or pose a problem with scanning
through footage.
Here, you’ll be able to set the motion detection features of
the DVR for each channel. We suggest that motion detection
is, under most circumstances, the most practical recording
method for the DVR to employ.