Network Video Surveillance Storage Products In The Field Of Application Security
As an effective Security Prevention Means Video Surveillance Role mainly in three aspects: First, prior warning, to analyze the situation and make exceptions Alarm ; Second, real-time browsing, real-time image transmission control point for users to browse; third event back, capable of monitoring the image storage and provide storage resources on-demand call.
Which the incident back in the current video surveillance applications, the most common and most important, because the reality, the user more in control after the incident images to trace through the playback at the scene. Therefore, effective control points, image storage is a video surveillance system is very important link.
Benefited from recent years Network Video Monitoring construction continues to heat up, for video surveillance storage market has gained significant growth. Analysys International data show that in 2006 for video surveillance storage systems market value of 4.7 billion, while in 2007, with operators, government and other sectors to accelerate the deployment of video monitoring for video surveillance storage systems market value will reach 680 million yuan, annual growth rate of 45% or so.
Stored in the video monitor developments in the field
Stored in the development of video surveillance and video monitoring their development are closely linked. Video surveillance through analog, digital, network in three stages, is stored in the application of video surveillance has also gone through analog, digital, network these three stages.
Analog video surveillance originated in the 80s of last century, images of the collection, transmission and display are based on analog devices, image storage is also based on analog equipment, that is, video tape recorders. The use of the video, on the one hand a very limited storage capacity, on the other image retrieval is cumbersome, but also remote call can not be achieved, In addition, save time, system maintenance and so on are also obvious flaws.
90 end of the decade, based on digital signal processing of digital video surveillance gradually began to spread all kinds of codec Technology In image processing has been applied widely, after the processed image can also be a way for digital bit stream for transmission, the image has begun to enter the digital storage period. The most typical application is the digital DVR , With the way in the internal hard disk image storage. This is stored in the storage time, image retrieval, system maintenance and remote calls aspects of the fundamental change. However, because this stage of digital video surveillance system with a clear majority of the localization characteristics of relatively small scale, it also showed significant memory-based and stand-alone front-end Feature.
Recent years, with the rapid development of information network technology, business platform through the center of centralized management and control, network video server and IPCamera for the front end of the network video monitoring system began to be widely deployed. As the structure is reasonable, expansion flexibility, clear layer, network video monitoring to give users a new experience in security applications to quickly build next-generation video surveillance system as the main form. The front-end and platform distributed architecture, centralized management and control as well as flexible and convenient user access, making online video Monitoring System Some have begun to storage networking. Network storage for video surveillance has brought a new storage architecture, on the one hand, the user more flexible deployment of storage, access and easier, on the other hand, building the need to achieve high capacity storage of video surveillance systems and more convenient .
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