How IP Video Surveillance Cameras Work

If you talk about one of the most powerful and best physical security then IP Video Surveillance and Network Video Recorders (NVRs) are two of the most common terms that are used for IP cameras and network based cameras. Almost every kind of IP video surveillance cameras and NVRs are based on different kind of software applications, the software functionalities can vary significantly. These variations are This variance can appear between suppliers and even amongst supplier's offerings. For instance many providers offer a number of options. Examples of categories include:
• Basic: small camera systems, basic functionality
• Medium: medium camera systems, more advanced camera and system controls
• Multi-Site: large camera systems with servers in multiple locations
• Global: super-large camera systems with failover and central management
IP surveillance cameras are expected to be in high demand in the near future. Banks, retail shops and several other professional organizations and individuals are opting for video intelligence systems protection. Advancements in digital technology have made video surveillance system cost effective, flexible and easily operable. Security systems that utilize Internet Protocol (IP) cameras are easy to fix, maintain and customize.
Initially, video surveillance was based on analog technology, meaning closed circuit television and video tape recording. However, it was not a practical solution for monitoring stores from a remote location, since it did not broadcast live information. The picture quality was poor and was dependent on human interference.
In the 1990s, digital technology revolutionized the surveillance system. Analog camera tubes came to be replaced with Charged Coupled Devices (CCDs). Digital cameras became very affordable for most. This combined development signified two things:
• It became possible to upload and download camera feed online. Thus, remote surveillance came into existence.
• With CCDs it was possible to generate high resolution images which could be manipulated for further processing.
For law enforcement, the use of digital technology proved ideal since zooming in, tracking specific scenes and enhancing features became easier.
A digital camera first captures the scene, broadcasts the images as digitized signal over a Local Area Network or LAN, where it is transmitted to a server. The server manages all the information. Relying on the software being used to manage the images, the server can record or display the images anywhere in the world.
The software package can be customized for facial surveillance including analyzing data and selecting 'flagged' items. With this technology, it is possible to send video files as data packets over the LAN. For exhaustive security solutions, the data available through the IP surveillance technology can be encrypted to prevent malicious activities such as data tampering.