Network Video Surveillance is IP Surveillance. IP is the abbreviation for Internet Protocol. It is one of the most commonly used protocols for communicating over computer networks. Network video surveillance is the transmission of digital video information over wired or wireless IP networks. At the same time, network video surveillance is based on different setup environments, some of which transmit video signals through self-built private networks, and some of which transmit video signals over broadband networks. Video surveillance and recording can be implemented as long as the network can be reached, and this monitoring can be perfectly combined with many other types of systems. Compared with traditional video surveillance, network video surveillance makes it easier for computers to automate the compression, storage, analysis, display, and alarming of video information, thereby realizing unattended operation; remote monitoring through network platforms and advanced software The system can not only complete a large amount of data analysis in traditional video surveillance in a few minutes, improve the monitoring efficiency, but also obtain more vivid and clear digital image quality and more convenient and practical monitoring management and maintenance. At the same time using the original LAN, no additional video cable. It can also realize multi-person monitoring at the same time, without having to go to the monitoring center, and can integrate monitoring, broadcasting, alarm, remote control, etc. At present, the network monitoring system that integrates cutting-edge technologies in the fields of computers, communications, multimedia, and networks can be used for remote monitoring and low-cost expansion of surveillance. The scope of use is rapidly expanding and IP video surveillance is now widely used in airports. , trains, subways, ground transportation hubs, government buildings, homeland security, city commercial centers, major facilities, shopping malls, banks, hospitals, houses and roads, and there is a sharp acceleration. According to predictions from Frost & Sullivan, a well-known industry analyst company, the annual growth rate of sales of traditional CCTV products is only about 10% from 2005 to 2010, and the market capacity will reach saturation in 2008; while the sales of network video products over the same period The annual growth rate will reach about 40%. It is not difficult to foresee that with the digital concept gradually deepening, in the near future, network video surveillance will certainly replace analog products. However, in the critical period of continuous development of network video surveillance, broadband networks, one of the basic transmission channels for network video surveillance, have revealed discordant notes. At the end of 2011, the world's largest CDN service provider, Akamai, announced that the average world speed in the fourth quarter of 2011 increased 39% year-on-year to 2.7Mbps. The countries with the fastest average connection speed are South Korea and Japan. In the third place, mainland China ranks the 90th with a speed of 1.4Mbps, which is inconsistent with the status of the country. In addition, from the perspective of the nationwide acceptance of complaints issued by China Consumers Association in 2011, broadband network services are still hot spots for complaints from the Internet. The actual speeds below the nominal speed and low bandwidth options have become the focus of attention. The slow speed of broadband will inevitably affect the development of security related networks and even become a bottleneck for the development of network video surveillance. Networked video surveillance must rely on the existing IP network as a transport carrier/medium for its video streams. From the data released by the CDN service provider Akamai, we find that comparing the average bandwidth level at home and abroad, we will find. The current domestic bandwidth level is not sufficient to support high-definition video transmission. This hopes how to improve China's broadband speed. Home Stand Fan,Quiet Standing Fan,Standard Stand Fan,Electric Oscillating Fan Foshan kanasi electrical co.,ltd , https://www.fskanasifan.com
Broadband Speed ​​Increases Road for Network Video Surveillance Development
Release date:2012/2/29 14:21:03