Security DVR System

The recent introduction of the security DVR system has made video camera surveillance more effective and easier to use. It removed most of the restrictions and problems associated with video tape recorders and added some useful new features. The only negative of upgrading to a security DVR system is the high initial cost but that can be made back from savings in the first few years of operation. The systems can also take advantage of the new network cameras that are starting to appear on the market.

Until recently, security systems that use closed circuit television (CCTV) cameras were restricted by the limitations of their video tape recorders. These limitations included the use of time-lapse to increase recording times, the lack of advanced search functions, and the need for regular maintenance. Tape recorders were troublesome to use and they slowed down the response time of police and security guards. Also, maintaining an archive of daily tapes was expensive and time consuming. A security DVR system is a much better alternative because it eliminates these problems.

A security DVR system is one that uses a digital video recorder (DVR) instead of a video tape recorder. The DVR units are similar to the ones used in homes for digitally recording television programs but have been adapted for use with security cameras. The video footage is stored on one or more high-capacity hard drives and can be instantly accessed without interrupting the recording. Footage can even be streamed over a computer network for remote monitoring and archiving on other computers.

Digital video recorders have many advantages over video tape recorders. Using hard drives instead of tapes allows more control over picture quality and recording time. Extra hard drives can be added to increase the video storage capacity and extend the recording time. Digital video footage also includes information that can be searched for specific dates, times, and events. It can also be searched more quickly than fast forwarding through a video tape, and copies of the video can be made more quickly.

The recorder used in a security DVR system is normally a dedicated set-top box or a modified personal computer. A set-top box is more compact than a computer and can be placed on a shelf to save space. It has front panel controls that are simple to use and do not require any computer skills. Before a personal computer can be used as a recorder, it needs to have a special video capture card fitted. The computer will also need special software installed to record the video from the capture card and save it to the hard drive.

Installing a security DVR system is reasonably simple to do and can be done in a few hours. Anyone who has hooked up a DVD player to a television should have no trouble installing one. However, the need to run camera cables through roof spaces and wall cavities makes the job much more difficult. Using wireless cameras avoids this extra work but they are not appropriate for all situations. Once the cameras have been mounted, their cables are connected to the back of the DVR recorder. If wireless cameras are being used, a receiver needs to be setup and plugged into the recorder.

The latest innovation in remote monitoring is the network camera. It is just a regular camera with a network adapter that can be plugged into a computer network. They also known as IP cameras because each one is assigned an unique internet protocol address. Many new buildings have network cables installed along with their power and telephone cables, removing the need to install new wiring for network cameras and significantly reducing their installation cost. They also have plugs that allow them to be connected directly to a security DVR system.

This Security DVR System Review is Written/Updated on Sep 2nd, 2009 and filed under Home Automation. Both comments and pings are currently closed.

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