Based on the MPEG-4 and RTP network video monitoring system research (1)

First, the video surveillance system overview

Video surveillance system is an integral part of the security system, it is a preventive capacity strong comprehensive system.

Video surveillance with its intuitive, easy, and information content rich and widely used in many occasions.

Traditional video surveillance mainly to simulate the system (i.e. CCTV system) as the primary, the transmission distance from analog video signal, usually suited to small-scale regional monitoring (such as a single building, the small-scale establishments, etc.), not remote monitoring, the part of the independent operation, system expansion capability, the new device is added to the existing system, in recent years, with the computer, network, and image processing, transport, technology, video surveillance system is moving the front-end integration, video, digital, monitoring, networking, systems integration, video processing and intelligent direction.

Figure 1 video monitoring market forecast

You can see from Figure 1, since the analog system in many ways more difficult to meet user's requirements, since the beginning of the 1990s, digital video surveillance system in occupies a major position, slowly and eventually replace the existing analog system.

Digital video surveillance is an information technology as the core of security electronics technology development.

Digital signal spectrum efficiency is high, high anti-interference, distortion, which can carry out data processing to enable convenient query retrieval possible; you can use the network video stream transmission distance, open protocol, enabling security subsystems and security systems and other information systems for networking and information exchange and sharing. Flexible, economical and practical, digital video surveillance coverage monitoring camera equipment, codecs, video matrix, storage devices, video management platform, transport networks, and market products.

As the global counter-terrorism and other changes in the international situation, as well as on existing monitoring system networking requirements, many emerging video surveillance applications such as cross-province/cross-city large enterprises need cross-domain security monitoring requirements, personal, home security, and so on, General digital video surveillance system is very difficult to meet these requirements, the system essentially on video surveillance system requirements are based on a large-scale application, for these occasions, we need to consider a number of new issues.

In addition, business customers of the monitoring system also remain in their own self-maintenance of building their own private network mode, client monitoring products are made from a private agreement, products are closed, cannot, by establishing their own self-maintenance mode on the customer's technical level and maintain force have raised very high demand, industry will need to monitor and control system of building and maintaining the separation from the consumer, by a professional team to complete.

Therefore, operators to launch carrier-grade video monitoring service that provides the user from the network to the device, from construction to maintenance package solution is to meet the needs of the industry, operators can provide different user needs to hire or purchase of flexible service, the user's video centrally managed at the same time strengthen the data backup functionality, allowing users to query data are more accurate and fast, greatly reduces the customer's monitor.

Operators to launch carrier-grade video monitoring service for this new market presents the following advantages:

(1) from the security industry chain, the traditional three-tier structure of the value chain (manufacturer-sales agents-engineering and System Integrator) primarily small and medium-sized projects (capital/scale/users), but in the emerging applications such as large system "safe city" project and a large number of individuals and families of video surveillance in a comprehensive application, the traditional three-tier structure of the value chain to a large extent, has been hard to adapt.

Introduction of telecom operators involved in the construction of large-scale network video monitoring of the model will be the best option, in the capital, scale, technology, and other aspects will give security industry brings revolutionary change.

(2) the majority of users, including public users, large and small businesses users have personal home user, the fundamental purpose of mainly want video monitoring on public order, health or family enterprises carry out effective monitoring to improve law and order, effective management of enterprise and domestic security.

And when the system in the course of a problem or unable to meet the current situation, for itself and does not have a very strong security professional and technical capacity of the users will be a major difficulty. Government/public security's core values is to maintain public order, ensuring a good social environment, the enterprise's core value is to generate more profit, and video surveillance as a tool, if you have the ability to be managed, that video surveillance as an operating business, users only need to care about how to more effectively use becomes the market trends, make public or businesses are able to put more focus on improving your own core values.

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