What is Network Video Recorder :
A Network Video Recorder is a device that records video in a digital format & typically deployed for IP video surveillance system. It is a specialized computer system that includes a software program that records video in a digital format to a disk drive or to other form of mass storage device. 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 operating systems are used with standard processors and video management software.
An NVR is unlike a normal DVR. A DVR needs a direct connection for video input to a video capture card or tuner. Whereas for NVR the input comes from a network. For DVR video is encoded & processed at the recorder level. But for NVR this encoding & processing takes place at the camera & then streamed to NVR for storage or remote viewing. Additional processing may be done at the NVR, such as further compression or tagging with meta data.
Why NVR is required for an IP Camera:
An Internet Protocol camera, or IP camera, is a type of digital video camera that receives control data and sends image data via the Internet. They are commonly used for surveillance. Unlike analog closed-circuit television (CCTV) cameras, they require no local recording device, but only a local area network. A network video recorder receives video input from network being encoded & processed in the camera itself. Hence NVR is required to record the video input available from an IP camera.
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Features of this camera are
1.3 MP CMOS ICR IR Network Bullet Camera.
- 1/3” 1.3 MP Progressive Scan CMOS | ICR
- IP66 | PoE | DWDR | 3D DNR
- 4mm @ F2.0 lens (6mm optional)
- H.264 & MJPEG
- 30m IR range
- 1280 x 960 @ 25/30fps