NVR development at present mainly divided into two major categories, one is connected to the level of embedded NVR, it’s mainly aimed at the research and development of a NVR mainstream IP cameras.
Another kind is aimed at the community level and peace city large NVR, its main use is based on high-end server software and hardware structure, on the premise of the traditional NVR software operation interface, based on data protection in the previous disk array, the large NVR system with powerful data processing function equipment.
Due to the high speed development in the field of security, the widespread popularity of hd monitor, 1080p realtime h.264 poe 32 channel NVR into access NVR, convergent NVR, NVR and core type. Now the main force of center storage management equipment is mentioned in the NVR products.
The core technology of NVR
NVR include: the basic function of IPC access, audio and video data broadcast service (live), audio and video data storage and retrieval (search) and playback (playback), support alarm processing and related logging and query, etc.; In addition to the basic function of the key technologies, such as the most basic of h. 264, MPEG4, MJPEG video coding compression technology support, high-definition cameras HDMI, DVI, VGA output formats such as support, in the aspect of data processing, raid 0, 1, 5, 6, 10, such as technical support, the playback time of streaming media technology support, forward streaming media technology, as well as the background database and the platform architecture, etc.
NVR technical bottlenecks still exist
NVR has ten years of development, but there has always been their technology technical difficulty, it displays the following points:
1. Because of the high frame rate high pixel front-end equipment using, so we need more efficient decoding protocol, transmission and data encapsulation protocol. NVR should have capacity of reliable, rapid growth in technology, virtualization, cloud storage, such as NVR can be a single, convenient way to meet people into the system, in view of the massive storage capacity and need to handle huge amounts of video data, NVR software need a efficient data retrieval and management techniques;
2. Intelligent video analysis technology is the important area of future development. Hd technology greatly improve the quality of the video monitoring image and clarity, allowed to deepen the details of the video image for precise analysis.
3. For the level and the core level of the NVR its key nodes of redundant reliability is the guarantee key elements of the system is stable and reliable. Key nodes include various nodes of key components of the equipment itself and the core equipment.
4. The data safe and reliable data protection technology, as well as the era of big data in the data encryption technology, which is also one of the technical bottleneck and key processing.
If NVR will quickly replace the DVR
At present, under the simulator and the development of the IPC coexistence, it’s hard to say who will replace who, but because the market classification, for minor occasions and cost, the influence of simulation system of equipment including DVR is still hard to exit the market, in the case of large system and high-end market, see the IP system will unify the whole country at present, the mainstream of 1920x1080 hdmi NVR for ip camerawill gradually occupy the high-end market.
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