XVR / DVR Video Recorder
DVR stands for Digital Video Recorder. DVR systems process the video data at the recorder, whereas NVR systems encode and process the video data at the camera, then stream it to the NVR recorder which is used for storage and remote viewing.
DVR is a device that records video from up to a dozen or more surveillance cameras onto a hard disk. The frame rate can be switched from real time to time lapse in order to save storage space. Digital recorders are more flexible than earlier analog VHS tape systems, and the video can be easily transmitter over a computer network.
DVR is a device that allows you to pause and rewind any broadcast, cable or satellite TV program as well as record and play back selected programs.
Well, we would say that an XVR Recorder is basically a DVR on steroids (but in a good way). A DVR (Digital Video Recorder) is a device used for recording and processing HD Analog or SD Analog Security Cameras. Meanwhile, an NVR (Network Video Recorder) is the device used for IP Cameras.
These digital recorders allow the simultaneous use of the principal video formats in a single piece of equipment: HDCVI/HDTVI/AHD/CVBS/IP. The main advantage over 4 in 1 equipment is the possibility to mix and match technologies like HDCVI & HDTVI, whereas previously only a single video format could be used.
Intelligent Video Analysis
For a long time DVR’s have incorporated video motion detection. The new XVR’s increase this capacity and can now intelligently analyse changes in video images, then create events and notifications or even activate other devices such as exits and alarms.
Detection rules can now be created and associated with video objectives. You can select from:
