Analysis NVR's three main features and two major development hindered
NVR to provide front-end storage, central storage and the client a variety of storage, these storage resources is also unified by NVR host to manage. If you encounter a long storage, but also external IP SANs, NAS storage expansion devices, in order to achieve mass storage.
With the popularity of the network and a small amount of storage technology matures, high-definition video an increasingly wide range of applications. The most economical high-definition video stream transmission network transmission, so the NVR will become the first choice to receive the HD stream.
In network monitoring, NVR uses the AES stream encryption, user authentication and authorized other means to ensure security, network transmission.
Said NVR in the market has taken an important step, but the practical application is still under severe constraints hamper the NVR widely replace the DVR.
NVR all communications through the network, which also determines the applications must be good network together, but some occasions be attached to the old network environment, a variety of data interleaving, transmission environment is complex and bandwidth resource constraints, the actual The application will be very limited.
NVR, as a system to monitor the core, must be and in front of the device IP Camera, DVR, unified management, which requires the NVR with the front-end equipment for signaling and streaming media communications front-end device sends the stream can be decoded, however, orders communications, the manufacturers there is no unified standard interface protocols.
Domestic video surveillance products in the basic use H.264 unity, while the foreign mainstream products is MPEG-4 are based on different vendors' products H.264 coding standard, still facing the stream package and an obstacle.
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Analysis Nvr's Three Main Features And Two Major Development Hindered
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