Now we will talk about new technology of
surveillance, it is IP surveillance cameras for home, IP security camera
connects directly to an IP network by wired or wireless means, providing live
digital video for all kinds of surveillance and monitoring applications
An IP surveillance camera can be described as a
camera and computer combined in one intelligent unit. It captures and sends
live video directly over an IP network, enabling authorized users to locally or
remotely view, store, and manage video over standard IP-based network
infrastructure.
IP
surveillance camera has its own IP address. It is connected to the network and
has a built-in web server, FTP server, FTP client, e-mail client, alarm
management, programmability, and much more. A network camera does not need to
be connected to a PC; it operates independently and can be placed wherever
there is an IP network connection
Why switch to IP surveillance camera-based system?
Because of CCTV camera-based system have several drawbacks as compared to IP
surveillance camera-based system. Some of these drawbacks are:
•Installation of CCTV surveillance camera is
complicated and inefficient. Coaxial cable must be used for attaching each and
every camera to the DVR. Connection must use coaxial cable from each camera to
the DVR. One cable can transport video signals from only one camera at a time
during the installation, and if two cameras are required, two cables will be
needed, thus making expansion in the future quite difficult.
•Extra cables will be needed if audio or PTZ control
signal is required.
•Signal is lost during conversion from sensor to coax
cable and during transmission, and again at DVR during conversion from analog
to digital video.
•Limitation of TV resolution is D1 (720x480 for NTSC
and 720,576 for PAL); IP surveillance can achieve higher resolution than D1.
•Each camera can only send single source of video; IP
surveillance has multiple streaming and accept multiple user login.
