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Difference between XVR & NVR in Hindi !! What is XVR & NVR in Hindi !! Information about XVR & NVR !
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XVR is NVR + DVR, which can be switched freely. X is generally used to represent the unknown, representing infinite possibilities. With a very simple configuration, XVR can be transformed into a normal DVR, HDTVI DVR, hybrid DVR or even directly transformed into an NVR.
DVR vs. NVR vs. XVR
Because XVR is NVR + DVR, so we only need to compare DVR with NVR now.
The difference between DVR and NVR is one letter, but it determines the huge essential difference between them. DVR digitally encodes and compresses analog video and stores it on the hard disk. The “D” letter mainly refers to encoding and storage technology, and has little to do with network transmission. Therefore, DVR is usually installed nearby in the computer room near the analog camera. The NVR obtains the encoded and compressed video stream from the network and then stores and forwards it. The letter “N” refers to the network transmission. Therefore, we generally cannot see the direct connection of the video signal on the NVR device. Its input and output are both and encode and add IP data of network protocol.
Physical location
In practical applications, the deployment of NVR is flexible and not limited by physical location. NVR is not limited by the physical location of cameras, encoders and control centers, but only requires network connectivity. The main need to consider the network Reasonable distribution and deployment of video streaming broadband. DVR is directly linked to the analog camera, so the physical location is subject to the layout of the field device, usually need to be near the camera, audio equipment and auxiliary input and output equipment, and consider the transmission distance and signal transmission loss, there are certain limitations.
HD
The NVR system is a truly digital, networked, and open system. It can achieve true high-definition storage and video forwarding with the front-end high-definition camera. If you need to achieve true high-definition, high-definition support is needed from video collection, encoding, compression, storage to display. The current implementation of high-definition is mainly achieved by the front-end “high-definition IP camera + NVR” method. The high-definition IP camera can generate millions of pixels of images, and then directly transmit, store, display or playback the network. The DVR system is restricted by the technology of the analog camera itself, the channel transmission bandwidth limitation and the chip processing limitation, and it cannot achieve true high-definition video, and supports up to D1
NVR adopts an open IP framework and needs to be used in conjunction with encoders, management platforms, operating systems, network transmission and storage devices to achieve complete functions. Therefore, the NVR has good integration capabilities. It is more convenient and flexible in terms of video interconnection and integration with alarm and access control systems. In addition, NVR can run on a common server and operating system. Therefore, it gradually breaks the proprietary and closed structure of equipment in the field of security monitoring and gradually merges with IT to facilitate user purchase and maintenance. In general, DVR systems generally have comprehensive functions such as video capture, encoding, compression, storage, and management, and can work independently from their own systems. Therefore, less consideration is given to compatibility between systems of different manufacturers and lack of “teamwork spirit”. Usually video encoding methods, network transmission protocols, video file systems, etc. are privatized, which is not conducive to integration
Interface
XVR can be used as DVR or NVR according to customer requirements. It does not have an absolute technical advantage, but it is flexible and can provide different functions according to needs. Now all major brands in the market have launched XVR, such as Hikvision XVR, Dahua XVR and so on. Users can go directly to these manufacturers to buy XVR equipment, or they can upgrade their DVR or NVR to XVR through officially provided software.
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