Because the network video server has the function of independently completing the network transmission, there is no need to set up a computer separately, so it can realize a simple IP mode networking, which cannot be realized by the traditional analog monitoring. Each network video server has a unique IP address in the network segment. The network connection is convenient and convenient to control and manage the device (IP address), that is, the IP address is used to identify, manage, and control the video source connected to the network video server. Its networking is just a simple IP network connection. Adding a new device only needs to add an IP address, which greatly facilitates the network upgrade and other network requirements of the original analog system.
This article refers to the address: http://
IP networking is a feature of network video servers. However, due to the lack of domestic IP address resources, domestic economic broadband (ADSL, cable broadband, etc.) all use dynamic IP to access the Internet, which makes network video servers need to solve the problem of Internet access. Network video servers can basically support domain name mode to support DDNS (Dynamic IP). If the network video server does not support domain name resolution, it will require additional expensive network usage costs.
Since the work of the network video server does not require an external computer, it is necessary for the network video server to automatically and independently access the Internet. Otherwise, if a network video server is configured with a computer to implement dialing, the meaning of the network video server is lost. At present, the domestic network video server can basically achieve this function. For example, the ADSL automatic dialing technology designed by NetView products for the domestic broadband situation is very convenient.
The networking mode of the network video server has many advantages. Combined with the central control management software and the server mode, more network applications can be realized. Since the space is not discussed in detail, we will provide a special network application article.
Network video servers have many features that are not available in traditional devices. The specific performance is as follows:
(1) Simple integration of multi-channel, network transmission, video recording and playback functions, which is easy to implement for the current H264 network DVR, but the basic functions of the two products also lead to its application. Differently, for video cameras with poor performance in the simulation phase and the first generation, network video servers can provide a lower cost solution.
(2) The network video server can browse the screen in the place where it can access the Internet through the network technology, and the supporting decoder can be used to directly browse to the video wall without using the computer device, which greatly saves the remote monitoring. the cost of.
(3) The multi-protocol support of the network video server is perfectly combined with the computer equipment to form a larger system integration network and complete the digitization process.
The network video server adopts an open software and hardware platform and a standard or general interface protocol. The system has strong expansion capabilities and can be connected with future digital, networked, systematic, multi-channel resource sharing systems. It is the best solution for the current transition of CCTV equipment from analog to digital.
From a deeper perspective, video networking and system integration are not only the problem of video transmission, it represents the development trend of the network application and information interaction of future video applications, and it is a kind of interaction from the content to a deeper level. The development potential is one of the core contents of the future 3G and broadband services. Therefore, with the continuous development of digital technology and network technology, the application of network video server in the video field will be more extended.
Network video server advantage
The network video server is a special device that encodes audio and video data and completes network transmission, thereby realizing remote monitoring.
1. Convenience of installation and maintenance
Some people may say, "The current network bandwidth is not enough. Optical transmission and optical fiber are used for remote transmission. The quality and transmission speed of video images are better than network transmission." However, the cost and complexity of laying fiber optics are difficult for many customers and engineers. Due to the popularity of computer networks, network monitoring systems can be built in places where the network is available, and installation costs are greatly reduced.
2, easy to use, want to see it
Network monitoring is not limited by time and location. It can be monitored on demand at any time. It can selectively view images of a specified location without the need to view images, and saves network bandwidth resources.
3, with more intelligence
A large amount of information can be extracted from the video stream in a timely and automatic manner, which can be transmitted, saved, retrieved, stored off-site, and stored in multiple machines; the camera can be programmed to transmit images only when certain events occur.
4, the image attenuation is small, the quality is guaranteed
Using advanced digital compression technology, digital signals are less attenuated during transmission and quality is guaranteed. When the analog video signal is transmitted over a long distance, the signal is attenuated and video amplifier compensation needs to be configured.
5, stable and reliable
The network video server adopts an embedded operating system, and the hardware uses a high-performance chip to work stably.
6, can achieve wireless network transmission
Using the network video server to convert the video signal of the camera into a digital signal, in the case of inconvenient transportation and difficult wiring, the digital video signal can be sent to the monitoring center by setting up the wireless local area network, and then distributed by the monitoring center to the Internet for the remote end. The management department is watching. The advantages of WLAN are convenient networking, short cycle, low investment and flexible structure.
Yuchai Diesel Generator,Yuchai Diesel Generator Set,55Kw Yuchai Diesel Generator Set,55Kw Diesel Generator Set
Jiangsu Lingyu Generator CO.,LTD , https://www.lygenset.com