Video management systems
An important aspect of a video surveillance system is managing video for live viewing,
recording, playback and storage. If the system consists of only one or a few cameras,
viewing and some basic video recording can be managed via the built-in web interface
of the network cameras and video encoders. When the system consists of more than a
few cameras, using a network video management system is recommended.
Today, several hundred dierent video management systems are available, covering
dierent operating systems (Windows, UNIX, Linux and Mac OS), market segments and
languages. Considerations include choice of hardware platform (PC server-based or
one based on a network video recorder); software platform; system features, including
installation and conguration, event management, intelligent video, administration
and security; and integration possibilities with other systems such as point of sale or
building management.
11.1 Hardware platforms
There are two dierent types of hardware platforms for a network video management system: a
PC server platform involving one or more PCs that run a video management software program,
and one based on a network video recorder (NVR), which is a proprietary hardware with pre-
installed video management software.
11.1.1 PC server platform
A video management solution based on a PC server platform involves PC servers and storage
equipment that can be selected o the shelf to obtain the maximum performance for the
specic design of the system. Such an open platform makes it easier to add functionality to the
system, such as increased or external storage, rewalls, virus protection and intelligent video
algorithms, in parallel with a video management software program.
A PC server platform is also fully scalable, enabling any number of network video products to be
added to the system as needed. The system hardware can be expanded or upgraded to meet
increased performance requirements. An open platform also enables easier integration with
VIDEO MANAGEMENT SYSTEMS - CHAPTER 11
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