Swann PRO-series, Руководство пользователя

Страница: 26 / 48

English
26
Alarm: Motion Detection - Action
Audio Warning: The DVR will use its internal buzzer to emit an
alarm tone. It sounds like an old computer indicating an error,
or a large truck backing up.
Send Email:
The DVR will send an auto-email alert when
the event type you’ve selected occurs. The Email Settings
button will take you to the same email con fi guration screen
accessible from the Network menu - see “Network: Advanced:
Email Settings” on page 23 for details.
Trigger Camera:
You can de fi ne one camera’s motion
detection to trigger recording on one or more other cameras.
This can be useful in a number of situations. For example:
t If you’ve two cameras overlooking a yard, one with a wide
view from well overhead and one with a much narrower
view of a corner or path. You may fi nd that using the
camera with the narrow view for motion detection gives
fewer false triggers and doesn’t miss an event as often as
the really wide view might, so triggering the wide view to
record as well ensures you know where the subject went
after they left the narrow view.
t One camera might face a public area, while another
camera looks down a private corridor which exits into the
public area. Having the camera in the private area trigger
the one in the public area to record can give you a record
of where a subject went after they left the private area,
without fi lling your hard drive with recordings triggered
by random passers by.
Schedule: You can change how the DVR Actions events at
di ff erent times. For example, a motion event occurring during
business hours might be perfectly normal, whereas one
occurring at four in the morning might indicate something
much more severe is happening.
Some tips to customizing your motion detection actions:
t Consider how important it is to be noti fi ed of motion
events as they happen.
Using the email alerts is a great way to be kept up-to-speed
on what’s happening, but may quickly become annoying if
something occurs which will generate a number of false triggers.
As a rule, we suggest employing the email alert only on interior
cameras during times that
noone
should be moving about in
front of them.
t It can be important to have a complete record of a
subject’s movements and actions for legal reasons.
If your cameras capture an illegal event (typically an intruder,
but we’re continually surprised by stories from our users) it is
important to have as much information as possible.
For example, images of someone in your home may not actually
prove that they broke in - but footage of them breaking a window
does. If you use a camera inside the home to trigger all exterior
cameras with a long pre-record time set, then you will have a
record of how they entered in addition to what they did.
t Always consider what’s really important.
Which is the bigger problem - a dozen false triggers per day, or
missing one critical event?
There’s no magic setting which will make motion detection work
perfectly . There will always be some events that it’s not sensitive
enough to catch, or minor happenings that will trigger an overly
sensitive camera to record. Typically, the best motion detection
settings are one’s that give few false triggers but don’t miss
anything .
Even motion detection which fasle triggers a few times per hour
will still save a signi fi cant amount of hard drive space compared
with a constant recording schedule for the same duration.