Evolution of video surveillance systems

 Video surveillance systems have existed for some 25 years, starting out as 100% analog systems and gradually becoming digitized. Today’s systems have come a long way from the early analog tube cameras connected to a VCR. They now use network cameras and PC servers for video recording in a fully digitized system.

However, in between the fully analog and the fully digital systems, there are several solutions which are partly digital; these solutions include a number of digital components but do not represent fully digital systems. In true network video systems, the video is continuously being transported over an IP network, and which are fully scalable and flexible.

Network video systems using network cameras

A network camera combines a camera and computer in one unit, which includes the digitization and compression of the video, as well as a network connector. The video is transported over an IP-based network, via network switches, and recorded to a standard PC with video management software. This represents a true network video system, and is also a fully digital system, where no analog components are used.

A network video system using network cameras adds the following advantages:

  • High resolution cameras (megapixel)
  • Consistent image quality
  • Power over Ethernet and wireless functionality
  • Pan/tilt/zoom, audio, digital inputs and outputs over IP along with video
  • Full flexibility and scalability


This diagram shows a true network video system, where the video is continuously transported over an IP network, using network cameras. This system takes full advantage of digital technology, and provides consistent image quality from the camera to the viewer, whatever their location.

What make us different from other surveillance provider, we are networking company which can design and converge your voice, data and video on the same network and make it easy for maintaining them by your IT staff.

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