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HC intelligent home network  IP-based video surveillance security products to the traditional application of great change. IP video monitoring with open, shared characteristics, in effect, greatly expanded the original traditional analog control system applications, such as mass, large-scale "Green City", without geographical restrictions and other remote network monitoring. On the one hand to break the traditional analog monitor to closure, characterized by the independence of the application; the other hand, before breaking the traditional control projects to industrial and professional applications for the feature. Began to mass, expansion of civilian-based applications, and this trend is becoming increasingly clear that video ...

Electronic Surveillance

EPON IP video surveillance applications will become mainstream-EPON, IP, Video - Radio and TV Industry

As EPON technology matures and its inherent advantages in construction of video surveillance systems, operators can choose according to different scenarios EPON technology, flexible video surveillance system to achieve front-end access.

With the era of full service carriers, emerging value-added applications, business users demand personalized jump phenomena occur. HD Xi IPTV, video surveillance and other value-added multimedia services, will become an important source of revenue carriers, also will build on the full service carriers Broadband New demands on the network.

"Green City" project of a large number of starts, urban surveillance, traffic monitoring and a series of remote networking needs of large numbers of video surveillance, video surveillance, video Communicate And other business operators have become the new business profits.

Video surveillance technology from the perspective of the traditional CATV applications can no longer meet the demand, IP video surveillance technology has become mainstream, and as applications increase, IP video surveillance of access ways to become more concerned about object. Video surveillance business with greater demand on the upstream bandwidth is generally more than 500K-3Mbit / s, Terminal Equipment Large quantities and in a region were dispersed on the access network with high scalability requirements. In addition, such business mainly for public safety protection and industrial applications, customers demand high QoS. As EPON The technology matures and its inherent advantages in the construction of video surveillance systems can be chosen according to different scenarios EPON technology to achieve front-end access video surveillance system.

Bearing System Requirements Analysis System structure IP video surveillance system should be able to cover bearing the city's multi-functional, integrated network system, carrying mainly the real-time video surveillance, alarm and storage services. From the system constitute the main types of monitoring points can be divided into front end, transmission network and control center and user terminals of the four components. Bearer network structure can be divided into front-end control point of access to the network, user terminal access to network and control center interconnection of three parts.

Part in the access network, according to access the size, geographic distribution, you can use a multi-level cascade mode. Interconnection network control center can use the tree, ring, mesh topology and other ways.

Technical Features Bearer network video surveillance is MAN, the same user terminal access networks belonging to the access network MAN. Technical characteristics of the bearer network video surveillance than the general metropolitan area contains the technical characteristics, the video surveillance access network, there are also unique:

1. Bearer network video surveillance network is relatively high uplink bandwidth requirements, video surveillance data to monitor the main points from the control center of transmission bandwidth of a single road trip or even higher at 500K ~ 3Mbps, but the current mainstream access technology ADSL technology can not guarantee a clear, real-time video upload;

2. Front-end control points are widely distributed, and the irregular distribution, which requires the network to cover for network building fiber-optic lines, a high demand;

3. For construction currently high demand for video surveillance transport industry, fiber optic network resources need to use the network for at least the general use of chain-shaped or tree network, such as along the main road junction about one kilometer or public places so few access points; such traditional MAN Ethernet Switches To build the net level with high cost of maintenance would be very difficult;

4. Access points as well as the monitoring system could range from hundreds of access points, as many as tens of thousands of access points, such circumstances the traditional video Inmerse Matrix almost impossible to switch the control points, IP technology a certain choice;

5.IP IP video surveillance system and application closely, because there are multiple real-time view of a monitoring center point while the video situation, the general will use IP technology to solve, require network support capabilities with high QOS.

IP video surveillance system is the need for EPON technology The data access network, the video surveillance is different from the ordinary user's ADSL, downstream bandwidth is larger, smaller upstream bandwidth; and video surveillance, upstream information for the image information transmission to the monitoring center, greater demand, each way video business bandwidth needs often 1 ~ 3M between the downstream bandwidth of main control signals, the amount of information is small, smaller bandwidth requirements. And because the camera were widely distributed video surveillance business is also showing a little more on the characteristics.

View of the development of ADSL can not meet the needs of video surveillance, using EPON platform as the basis for construction, transmission distance up to tens of kilometers, the line using a passive splitter to achieve more control points shared fiber can also greatly reduce Cable Procurement, and construction costs.

The traditional Ethernet switch due to fiber resources, maintenance, investment and other factors, not able to satisfy the needs of video surveillance access network.

In addition, the use of EPON build video surveillance platform, except to satisfy video surveillance needs, also in line with the operator's "Light of Copper" strategy. "Global Eye" and other network video surveillance business is high-definition video transmission to the direction of development, based on EPON for FTTH is the main basis of this development.

EPON solutions without additional equipment, the network structure is simple and easy to implement, and the program's access rates up to 1000M, fully meet the needs of monitoring points Expansion of the capacity of current and future needs. At present, all the time in building FTTx, video surveillance has been to promote the FTTx business development business as a major factor.

Solutions View of the current operators, users and the industry's growing demand for video surveillance development is proposed based on EPON's IP video surveillance solution. Solution using EPON technology war technology, IP image codec technology, IP storage technology combines IP-based video surveillance system-wide solution to address the traditional limitations of video surveillance solutions, can easily achieve more than a remote image information monitor level calls and centralized storage, and networking and applications can be infinitely extended, full protection of user investment.

Total solution as shown below: EPON-based video surveillance solutions through EPON Ethernet passive optical network video coding device (DVS, IPC) deployed in the front, and through EPON access network to IP-based video signals upload, IP the flexibility to transfer the video stream up to class monitoring center, multi-level monitoring center via IP metro network connection, through distribution centers in the surveillance video decoder into an image model for analog output display.

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