Milestone XProtect Express 2014 - Manual (Page 187)

Milestone XProtect ® Express 2014 Administrator's Manual
www.milestonesys.com 187 Glossary of Terms
Dual stream
Some cameras support two independent
streams (which can be sent to the recording
server): one for live viewing and another for
playback purposes. Each stream has its own
resolution, encoding, and frame rate.
E
Event Server
A server that stores and handles incoming
alarm data and events from all XProtect
Express servers. The Event Server enables
powerful monitoring and provides an instant
overview of alarms and possible technical
problems within your systems.
F
Fisheye
A type of lens that allows the creation and
viewing of 360-degree images.
FPS
Frames per second —measurement indicating
the amount of information contained in a
motion video. Each frame represents a still
image, but when frames are displayed in
succession, the illusion of motion is created.
The higher the FPS, the smoother the motion
appears. Note, however, that a high FPS may
also lead to a large file size when video is
saved.
Frame rate
A measurement indicating the amount of
information contained in motion video
—
typically measured in FPS.
G
GOP
Group of pictures: individual frames grouped
together, forming a video-motion sequence.
Grace period
When you install your system, configure it and
add recording servers and cameras, your
system runs on temporary licenses. These
need to be activated before a certain period
ends. This is the grace period.
GUID
Globally unique identifier —unique 128-bit
number used to identify components on a
Windows system.
H
H.264
A standard for compressing and
decompressing video data (a codec). H.264 is
a codec that compresses video more
effectively than older codecs, and it provides
more flexibility for use in a variety of network
environments.
Hardware device
When you add a digital camera to your system,
you are not adding the camera itself only, but
rather hardware devices. Hardware devices
have their own IP addresses or host names.
Being IP-based, your system primarily
identifies units based on their IP addresses or
host names.
Even though each hardware device has its
own IP address or host name, you can attach
several cameras, microphones and speakers
to a single hardware device and share the
same IP address or host name. This is
typically the case with cameras attached to
video encoder devices.
You can configure each camera, microphone
and similar channels on the hardware device
individually, even when several of them are
attached to a single hardware device.
Host