Tuesday, December 20, 2011

The Road from Then to Now


 IP Camera SolutionsRoute One
2011 marked the fifteenth anniversary of the IP camera. The first network camera, the Axis 200 was introduced in 1996.With its low resolution images and its fps of one, it was not developed as a security application but rather as a nanny camera.  So how did we get from there to here? By travelling a long road filled with upgrades and innovations. Let’s travel it.

VCR-based analog CCTV system
For the past thirty years, analog cameras have been, and still are providing ample video surveillance.  Pre-IP, the typical set-up consisted of installed analog cameras feeding footage through analog coaxial cabling to a multiplexer to be viewed on a monitor or stored on a VCR.

DVR System
 DVR-based analog CCTV system  
The mid-nineties also witnessed the arrival of the DVR on the scene. It replaced the multiplexer and the VCR. It provided digital recording, not only improving image quality but also eliminating the need to change and store bulky cassettes. Finding exact video sequences in police investigations became less protracted. 

Network DVR-based analog CCTV systems
The addition of a network connection spread viewing capabilities beyond a single monitor. This was a two way street since it also allowed an operator at a remote PC to view as well as operate the camera. 

Video-encoder-based network video systems
The addition of the video encoder was a pivotal step on the way to an open IP-based video solution. Analog cameras were still employed but now along with video management software, video could be continuously transported over a network. 

IP Camera System
IP camera-based network video system
Many long time analog camera users are phasing them out and replacing them with IP cameras. Taking advantage of digital technology IP cameras supply consistent image quality and transport it to viewers at whatever location. Video Management Software adds endless applications and solutions.
This has been the interstate express route. In upcoming blogs we’ll explore a few scenic offshoots. So gear up and keep your engine running.

Next stop: Exploring video encoders - now and then.

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