A DVR is the recording device which stores all the images onto internal Hard Drives for up to 4,8,16 or 32 CCTV cameras and view all 4,8,16 to 32 on a display.
Recordings can be played back from all the cameras or one at a time. the owner of the DVR can go back to any time in the recording and playback a recording in that time period desired
The recorded images can record for as long as necessary depending on the size of the hard drives being used in the Digital Video Recorder.
Many DVRs can be controlled, viewed and played back over the Internet using an Internet Browser or a Client software. This allows you to view your premises from anywhere in the world.
A DVR must work in sync to create a robust and reliable piece of equipment, designed to capture those unforeseen circumstances. Creating a DVR solution requires a dedicated team of software and hardware engineers, database programmers and system designers, plus support personnel. Since we are talking about security where there is no margin for error we use only the best technology, and latest software for our DVR and our video cameras. These applications take years to develop and debug.
It would be advisable to invest in a quality DVR recorder as there is much less ramifications as the more professional recorders have been tried and tested and are made for durability.
DVR recorders are mainly used for Domestic to small to Medium sized Businesses 16 Channel DVR recorders need to be doubled over to make 32 Channels unless they are a 32 Channel DVR recorder. DVR`s are great for small shops, Newsagents, Bakeries all small to medium businesses.
What is the difference with a IP NVR Recorder
IP NVR`s are similar in some ways but different in structural operation. An NVR contains no dedicated video capture hardware. However, the software is typically run on a dedicated device, usually with an embedded operating system. Alternatively, to help support increased functionality and serviceability, standard Linux and Windows operating systems are used with standard Intel processors and video management software. An NVR is typically deployed in an IP video surveillance system.
Network video recorders are distinct from digital video recorders (DVR) as their input is from a network rather than a direct connection to a video capture card or tuner. Video on a DVR is encoded and processed at the DVR, while video on an NVR is encoded and processed at the camera, then streamed to the NVR for storage or remote viewing.
Commercial NVR Recorders are especially made for much larger scale Installations such as Large retail, Government sector, Industrial, Hospitality & Financial sector. Commercial NVR`s have Much more storage space for hard Disk Drives giving the Storage capability needed for 1 to 5 even 10 megapixel cameras.