2010 3G video surveillance trends and the evolution of the 6 change (1).

<P> 3G video surveillance has become the main trend of the video surveillance market. .And into 2010, high definition, intelligence, standardization and integration into 3G video surveillance of the next target. .</ P> <P> recent years, China's security market compound annual growth rate remained at 20%, while the compound annual growth rate of video surveillance and more than 25%. .</ P> <P> for such a fast-growing video surveillance market, in recent years is showing what kind of trend, then what changes will happen? </ P> <P> trend of a network: .is no longer a trend, has come </ P> <P> from the initial suspicion, and later unanimously approved, on the network is the trend of the discussion has been going on for nearly 5 years. .Now, this statement should be amended when: the network is no longer a trend, has literally come to our side. .</ P> <P> from the market data, from 2004 to 2007, accounting for analog video surveillance monitoring the share dropped from 56.9% to 19.7%, total video surveillance digital surveillance share from 35.7% to 54.4%, network monitoring .share of total video surveillance from 7.4% to 25.9%. .That is, the proportion of traditional analog control has been significantly reduced, although, as the representative of digital surveillance DVR proportion is increasing, but its share of the annual compound growth rate of only 11%, while the proportion of network monitoring annual compound growth rate .reached 37%. .In 2008 -2009, based on popular network monitoring and accounting for the accelerated growth rate increase every year and speculation, is expected to network video surveillance video surveillance of the proportion of the total may reach more than 40%, close to the proportion of digital surveillance. .</ P> <P> applications from the industry perspective, video surveillance for the major sectors of the market tend to have significantly preferred network monitoring. .Such as government agencies and public security "Green City" project, more than half made it clear that to select the network monitoring. .Financial and transport sectors in recent years has shown a clear demand for a large network in analog monitoring, and withstood the pain of powerlessness digital surveillance network monitoring capability and experience the surprises, the network has undoubtedly become the first choice. .Education industry is the perfect network infrastructure, without exception, the clear preference for network monitoring. .</ P> <P> from the network environment, today's network has been fully equipped for video transmission and video communications requirements, we have this degree of recognition than they used to. .Users on the network monitoring the initial concerns focused on the main network bandwidth, network delay, network stability, network security, these 4 aspects. .And now, even on the Internet can be stable, clear, smooth, interactive video applications, including video conferencing, video chat, online viewing, etc., bandwidth, latency and stability in the past has been completely beyond our imagination, .fully meet the load demand for video surveillance, and by means of user authentication, stream encryption and other security technologies, network transmission fact bare transmission than analog control more secure and less susceptible to external environmental interference. .</ P> <P> Trends HD: the next milestone </ P> <P> because of the arrival of networked, monitoring of possible high-definition, and the trend is obvious. .In 2010, high-definition monitor will be one of the hot discussion, and opened the competition between firms will be an important factor in the gap. .By the prices and the impact of the overall solution, in 2009 the first high-definition monitor in the financial, transportation, medical and other high-end industry first to receive part of the application. .With more and more market access to join HD video conference market, drive costs down, in 2010, high-definition video conferencing market will gradually mature, more applications. .</ P> <P> why only high-definition network to promote it? To achieve a true HD monitor, must be collected from the video source and video signal compression, video browsing, video file playback so the full support of HD. .After collection of uncompressed HD video signals are analog and digital transmission, analog transmission generally use the YPbPr component of transmission, high-definition video signals along coaxial cable requires three simultaneous transmission. .Digital transmission generally use DVI, HDMI or HD-SDI transmission, including transmission of DVI or HDMI only a few meters away, is not suitable for monitoring transmission, while the HD-SDI, although you can transfer about 100 meters, but very demanding on the coaxial cable ., the price of cable is also very expensive. .Can be seen, whether it is analog or digital mode transmission, high-definition video signal transmission costs will be significantly higher than standard definition video signals. .In addition, the current high-definition video sensor with CMOS-based, CMOS sensor output directly to digital video signals. .The camera DSP or ASIC through this digital high definition video signal compression directly, and then transmitted to network than the output of HD signals directly to the camera more economical. .It can be said is the definition of front-end network applications based on the market from the current high-definition cameras used to monitor network cameras are basically the current situation can also prove this point. .[1] [2].