Home Help and advice How do IP cameras work?

How do IP cameras work?

by hk

What is it?
IP is short for Internet Protocol. When video is captured, it is send to the viewing device via a digital signal rather than a video/audio signal with dependency on voltage. The mechanism of capturing images is similar, but the big difference is the image can be compressed and viewed on any device anywhere on the same network. But, don’t worry, in order to use IP, you don’t have to be a boffin.

Yes, but what is IP?
IP is a protocol. This is a set of rules on how the data is moved across the network and how it is viewed. Apparently, there are over 8,000 protocols out there. IP is a principle communications protocol. It allows data to be split up and send to the right destination and back again easily and efficiently. It is this flexibility of communication makes image transfer very easy.

Why IP cameras?
IP cameras were first brought to light in 1996 by Axis with their Neteye 2000. Since then, the technology has improved year on year as people and the cost of production has reduced. IP cameras use thetechnology of packet switching. This is where the data is broken up into chunks or packets and travel to the destination independently and the re-glued together at the other end. This means, that a constant open circuit or signal does not have to be open or suffer loss. IP cameras are more successful as they offer higher resolution, more flexibility for recording and viewing anywhere in the world.

IP addresses
Like your home address, every device and computer connected to a network will have a unique number or IP address. Usually this is a set block of four numbers ie 192.168.1.64. When you put a memorable web address into your favourite search engine, the web address is linked to an IP address. The domain name is easier to remember than a set of numbers. IP cameras use this structure connect and transmit the data from the camera to the viewer.

Hope this helps,

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