Due to the mature and its EPON technology in the construction of congenital advantage, video monitoring system, carriers can choose according to the different application scenarios, flexible realization EPON technology video monitoring system of front-end access.

With the arrival of the era of business operation, various value-added application of personalized service, customer demand also appear surge phenomena. High-definition video monitoring of IPTV, multimedia services, will be added a major source of operators, and at the same time, will build the business operators to put forward new requirements broadband networks.

"Peace" project of large cities, urban traffic control and monitoring, remote video surveillance network needs a series of video monitoring, video, communications business has become the new business operator profit.

Video monitoring technology from the perspective of traditional CATV cannot have satisfied application requirements, IP video monitoring technology is gradually becoming the mainstream, and with the increasing application of video monitoring, IP access method has become more and more attention of the object. Video monitoring business needs, for uplink bandwidths 500K - more than 3Mbit/s, terminal equipment in a large quantity and distribution, scattered with area of access network expansibility demanding. In addition, because such business is mainly used for public safety and industry applications, the higher requirements for QoS customers. Due to the mature and its EPON technology in the construction of congenital advantage, video monitoring system, can choose according to the different application scenarios EPON video monitoring system technology to realize the front-end access.

Bearing system construction demand analysis

System structure

IP video monitoring system should be to be able to carry the multi-function, covering the entire city integrated network system, is the main bearing video monitor real-time image, alarm and storage, etc. From the system consists of the main types can be divided into front-end decentralizing control center, transmission network, and user terminals four parts. Carrying on the structure of network in access&edge network monitoring can be divided into the front end users access network, and three parts of interconnection network monitoring center.

In access&edge network according to the size and access the distribution of geographical position, can use level or even more surface. The monitoring center of interconnection network can use tree, ring, mesh topology. Etc.

Technical characteristics

Network video monitoring networks, also belong to bearing user access network also belongs to the terminal access networks. Video surveillance network technology characteristics besides containing bearing general intracity networks technology characteristics, video surveillance access and its unique:

Video 1 of the network load monitoring network uplink bandwidths more demanding, video monitoring data from monitoring control center to transmit, single road line bandwidth in 3Mbps 500K ~ even higher, and the current main access technology ADSL technology cannot guarantee the real-time video clear upload,

2 and wide distribution decentralizing front showed irregular distribution network, it needs to be able to cover for optical fiber links to the Internet, puts forward the higher requirement,

3 for the current video monitoring higher requirement of the construction industry, the transportation network to use the optical fiber network resources at least, generally USES the chain-shaped or tree trunk road network, such as along each kilometre crossing or public set several points, So the man with traditional way of Ethernet switches connected network maintenance cost, high grade will be very difficult,

4 points, the monitoring system, while hundreds of points less than a ap, criterion tens of thousands of this kind of circumstance with traditional video monitoring switching from array is almost impossible, IP technology is an inevitable choice,

IP video monitoring system and combining with IP applications, due to exist multiple monitoring center point of view a real-time video, usually with IP technology solutions, network with high QOS support ability.

IP video monitoring system, the necessity of using EPON technology

Data access network video monitoring, different from ordinary users of ADSL, large downline bandwidth, uplink bandwidths smaller, And video monitoring, uplink information for image information to the monitoring center, the demand is bigger, each video business bandwidth requirements often in 1 ~ 3M downward, mainly control signal bandwidth, small volume, bandwidth needs. But due to the camera, video monitor distributed widely in business is showing a multipoint characteristics.

In video monitoring to meet with ADSL EPON platform development needs, using as the basis, the transmission distance of tens of kilometers, circuit with a passive optical fiber, employ more than realizing share can greatly reduce fiber procurement and construction cost.

While the traditional Ethernet switches in fiber resources, maintain because of factors, investment, nor can well meet the video monitoring access network requirements.

In addition, using video monitoring system, constructing EPON video monitoring in demand, also accord with the operator's "light" strategy into copper. "As global network video monitoring eye" business is to high-definition image transmission direction, and based on which EPON FTTH development direction of main basis.

EPON solution without additional equipment, network structure is simple, convenient, and the implementation scheme of access speed up, completely satisfy each 1000M decentralizing the current and future expansion of the capacity requirement. Currently, in the construction of the video, already FTTx FTTx promote surveillance business as a main factor of business development.

The solution

Aiming at the operators and users of the growing demand, video surveillance construction is proposed based on the video monitor EPON IP solution. Solutions use beacon EPON technology, IP image encoding &decoding technology, IP storage technology combines the whole video monitoring system of IP solutions, solved the traditional video monitoring solution can be conveniently, the limitation of realizing remote monitoring image information and centralized storage, multi-level calls and network and can be used to expand, fully protect unlimited customer investment.

Based on the video monitor EPON solution is through EPON Ethernet passive optical network video coding device DVS (IPC), at the front, and through the deployment of EPON access IP video signal will upload, IP video can be flexibly transmission control center, multi-stage level at the monitoring center through the IP network connection, through the distribution of metro in video decoder monitoring center of the image into simulation model for the output shown.

All monitoring image can be directly storage in total monitoring center of IP storage devices. The monitoring system of the image is no longer rely on matrix to call, but through the exchange of multi-stage monitoring system software to realize video encoder instruction in any position of the network direct tier-one calls.

As a kind of FTTH EPON technology of implementation scheme, which realize the aim is to realize high bandwidth and various application FTTH, create digital home, digital community. Based on the technology of fireworks EPON video moniting solutions in IP applications also highlights the function of this system possesses, such as mobile phone, monitoring, based on the wireless encoding WIFI CDMA equipment, small family of IPC etc. Function.

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