Network monitoring system of the Gospel

With the development of computer technology and the popularity of the network to video compression coding, transmission and management as the core, intelligent camera image analysis features, and alarm systems, access control systems and other third-party system integration and operation of the network video surveillance management The system has become the user's preferred and universal needs. IP network monitoring system is divided into two kinds, a video server as the core of the IP network monitoring system, front-end can join the analog camera; one is in front of the network camera, direct access to IP network system. In the security industry, although many of the monitoring system is still in the DVR as the core of the "analog + digital" under the structure mode, but the digital monitoring "the wind is full of wind and rain," the trend has many industry insiders clearly feel It's power. Monitoring technology is constantly moving forward, the current DVR used in essence or analog, it needs to go through several AD, DA conversion, CPU load is very large, and the demand for higher bandwidth; and as the video server , Network cameras are only front-end to receive analog signals, digitized, the digital signal mode to the network to a dedicated device to achieve remote real-time monitoring purposes, in addition, the video server using the accompanying video decoder can not computer Equipment, direct transmission to the TV wall, etc., greatly saves the cost of remote monitoring, truly digital. Many industry insiders have said that compared with the DVR as the core of the monitoring system, digital monitoring has several significant advantages: anytime, anywhere, plug and see; a high degree of openness; low total cost of ownership, precisely because of these unique advantages , Digital monitoring to the monitoring industry has brought a revolution. The network camera / video server can be directly connected to Ethernet, eliminating the complexity of the cable, with a convenient and flexible, plug and see and so on, at the same time, users do not need to use dedicated software, just a browser. In addition, the network camera can be in any corner of the world through the Internet for remote monitoring, only need to access Ethernet, the allocation of an address, you can directly through the network remote monitoring. The digital network monitoring system has a high degree of openness, the system has a third-party system integration interface, easy third-party system integration, with three-in-one system, GPS system, GIS system, alarm, access control, industry business systems seamlessly, Linkage operation, to provide comprehensive service needs close to the user management functions. On the other hand, IP monitoring has been misunderstood, that its high cost, high technical threshold. In fact, if the overall cost of the system hardware (including cameras, cables and NVR recorder storage devices, etc.) analysis, IP surveillance system hardware costs are usually DVR-based monitoring system hardware costs, taking into account the system installation costs, The advantages of an IP surveillance system are obvious because the cost of building IP-based infrastructures is much less than the cost of building a coax-based infrastructure. If PTZ (Pan Tilt Zoom) control is required, the analog system must also be equipped with additional control circuitry, while the IP monitoring system does not have this additional overhead. Power over Ethernet (PoE) technology is another IP network monitoring system can have the advantage of saving construction costs, the technology allows the network camera can simultaneously receive power and data through the same network cable, so that users can Saving the cost of cabling required for powering the device, and can be used in conjunction with an uninterruptible power supply (UPS) to further improve system reliability.

Digital monitoring to solve the "anytime, anywhere" problem, and not only in the field of security monitoring, it also has a wide range of applications in other industries, such as mobile phone movies, video telephony, video conferencing.