The need for video surveillance is on the increase with the rising index of threats to homes and businesses. That is why you find one form of CCTV security system or the other in most homes and offices today.
In fact video monitoring is now everywhere, from private homes, properties, schools, businesses and even in the neighborhood and public centers. They act as threat deterrents, crime investigators and also provide some kind of security assurance to the owners.
With the expanded use of security cameras and the ever advancing technologies, more and more products and systems have become available to the users and installers alike.
Cameras no longer view in a single direction and take crude video images that can barely be recognized by viewers. Videos Cameras now offer HD vision, using analog and IP based systems. But which one do you go for?
The ultimate difference between analog and IP cameras is the technique by which the video signal is transmitted as well as where the video is compressed or encoded. Either in the DVR or the camera itself.
Truen Networks – TNL can plan and deploy any of IP or analog system or a combination of both in any environment. Either of them can be viewed remotely on PC or mobile phone over the internet.
We highlight here the major characteristics of each technology – Analog and IP CCTV systems.
IP video security systems are generally more expensive than analogue systems. So if you are working on budget the analog system is your choice.
In analog systems, the Cameras on send their video in the traditional base band format over coax or UTP cabling back to a digital video recorder (DVR) where the video is digitized and stored.
On the other hand, IP video cameras broadcast their video as a digital stream right from the camera itself and transmitted over an IP network. Like an analog system, video is recorded on hard drives, but since the video is an IP stream straight from the camera, there is more flexibility as to how and where that video is recorded. The DVR is replaced with an NVR (network video recorder), which in some cases is just software since it doesn’t need to convert analog to digital.
One of the biggest factors in determining the quality of CCTV system is image quality of resolution. IP cameras offer higher resolutions than analog systems. IP cameras are available at resolutions above 5 mega pixels.
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