Internet Protocol (IP) CCTV camera

IP Camera


What is an IP Camera?


IP Cameras are Closed Circuit Television (CCTV) cameras that use Internet Protocol to transmit image data and control signals over a Fast Ethernet link. As such, IP Cameras are also commonly referred to as Network Cameras. IP cameras are primarily used for surveillance in the same manner as analogue Closed Circuit Television. A number of IP cameras are normally deployed together with a digital video recorder (DVR) or a network video recorder (NVR) to form a video surveillance system.


Until very recently, video security and surveillance was accomplished using using Closed Circuit Television. This technology included analogue cameras, coaxial cable and video tape recorders. Video security started entering the digital age with the advent of CCD sensors which digitized image capture in the camera. However, transmission was still analogue via coax to analogue VCR's. The next step was the introduction of Digital Video Recorders (DVR's) connected directly to analogue cameras, which made storing, searching and retrieving video much more efficient. PC's were introduced for display of the images through a modem or network connection to the DVR.

A Network IP Camera acts as a stand alone device allowing a user to view live, full motion video from anywhere on a computer network, even over the Internet from anywhere using a standard web-browser, plus any hard disk on the network can be set up to record the video output.


Another significant technology called Video Servers, allow existing CCTV installations to gain the benefit of Network Video, while protecting investments in analogue cameras. Video servers connect to IP Networks and convert the signal from analogue cameras to digital format. Like Network Cameras, Video Servers contain on-board processors and web server software that makes each camera IP addressable. Essentially, Video Servers turn CCTV cameras into IP Network Cameras.



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