Migrating To Digital Surveillance
What Is A Video Encoder?A video encoder (sometimes called a video server)
makes it possible to move toward a network video system without having
to discard existing analogue cameras and equipment. It brings new functionality to
analogue equipment and eliminates the need for dedicated equipment such
as coaxial cabling, monitors and DVRs – the latter becoming unnecessary
as video recording can be done using standard PC servers.
A video encoder typically has between one and six analogue ports for analogue
cameras to plug into, as well as an Ethernet port for connection to
the network. Like network cameras, it contains a built-in web server,
a compression chip and an operating system so that incoming analogue feeds
can be converted into digital video, transmitted and recorded over the
computer network for easier accessibility and viewing. Besides the video
input, a video server also includes other functionalities and information
which are transported over the same network connection: digital inputs
and outputs, audio, serial port(s) for serial data or control of pan/tilt/zoom
mechanisms.
A video server can also be connected to a wide variety of
specialized cameras, such as a highly sensitive black and white camera,
a miniature or a microscope camera.
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We have successfully migrated an assortment of analogue cameras including some PTZ cameras to Digital solutions.