First, the video surveillance system overview This article refers to the address: http:// The video surveillance system is an integral part of the security system. It is a comprehensive system with strong defense capabilities. Video surveillance is widely used in many applications because of its intuitiveness, convenience, and rich information content. Traditional video surveillance is mainly based on analog systems (ie CCTV systems). It is limited by the distance of transmitted analog video signals. It is usually suitable for small-area area monitoring (such as single buildings, small-scale locations, etc.), and cannot be remotely monitored. Operation, system expansion ability is poor, new equipment is difficult to add to the original system. In recent years, with the rapid development of computer, network and image processing and transmission technology, video surveillance system is moving toward front-end integration, video digitization, and monitoring network. Development, system integration, and intelligent video processing. As can be seen from Figure 1, since the analog system is more and more difficult to meet the requirements of users in many aspects, since the 1990s, the digital video surveillance system has gradually occupied a major position, and there is a tendency to eventually replace the original analog system. Digital video surveillance is the inevitable development of security electronic technology with information technology as the core. The digital signal has high spectral efficiency, strong anti-interference ability and less distortion, and can perform data image processing, making convenient query retrieval possible. It can use the network to transmit video stream, and the transmission distance is long. The open protocol can be used to make the security subsystems. Network and information exchange and sharing between security systems and other information systems. Flexible expansion, economical and practical, digital video surveillance covers surveillance cameras, codecs, video matrices, storage devices, video management platforms, transmission networks and other aspects of the market products. With the global anti-terrorism and other international situation changes, as well as the networking requirements of the original monitoring system, many emerging video surveillance applications, such as cross-domain security monitoring requirements, personal home security, etc., required by large inter-provincial/cross-market large enterprises, The general digital video surveillance system is difficult to meet these requirements. These systems essentially require video surveillance systems based on large-scale applications. For these occasions, we need to consider some new topics. In addition, the monitoring system of enterprise customers basically stays in the private network mode of self-built and self-maintenance. The customer's monitoring products all adopt private agreements. The products are closed and cannot communicate with each other. The self-built self-maintenance mode is the technical level of the customers. The maintenance force has put forward very high requirements. The development of the industry needs to separate the construction and maintenance of the monitoring system from the users and be completed by a professional team. Therefore, operators launch telecom-grade video surveillance services, providing users with a package solution from network to device, from construction to maintenance, which caters to the needs of industrial development. Operators can provide flexible lease or purchase according to different user needs. The service strengthens the function of data backup while centrally managing the user's video, which makes the user query data more precise and fast, and greatly reduces the monitoring manpower of the customer. The introduction of carrier-grade video surveillance services by operators will bring the following advantages to this new market: (1) From the perspective of the security industry chain, the traditional three-level value chain structure (manufacturer-distribution agent-engineering and system integrator) mainly faces small and medium-sized projects (funds/scale/users), but In the emerging large-scale system applications such as the construction of the “Safe City†project and a large number of video surveillance applications for individuals and families, the traditional three-level value chain structure has been largely difficult to fully adapt. Introducing the mode of telecom operators participating in large-scale network video surveillance construction will become one of the best choices, and will bring revolutionary changes to the security industry in terms of capital, scale, and technology. (2) Most users, including public security users, large and medium-sized enterprise users, and individual household users, mainly rely on video surveillance to effectively monitor social security, business operations or family conditions to improve social security. Effectively manage the effectiveness of corporate and home security. When the system has problems in use or cannot meet the current situation, it will be a great difficulty for users who do not have strong security professional skills. The core value of the government/public security is to maintain social security and ensure a good social environment. The core value of the enterprise is to generate more profits, and video surveillance as a means, if it has the ability to be managed, that is, video surveillance as a kind of Operating the business, and users only need to care about how to use the trend that will become the market more effectively, so that the public security or enterprises can focus more on improving their core values. (3) After the construction of a large-scale monitoring system, how to effectively manage and maintain it will ensure the extent to which the system can meet the needs of sustainable development. The strong professional technical support and maintenance of the operators, as well as advanced and stable carrier-class operational experience, make the users of the system have no worries. In this way, in fact, the system itself is put forward higher requirements, that is, the system must be able to meet the special requirements of operators for operation, management and maintenance. Second, the video surveillance of foreign operators In the United States, Virginia Trafficland is one of the first operators in the United States to provide a public monitoring and browsing system for mobile phones. Its typical business name is "AirVideo", which is a road monitoring service for public services. Since the launch of the AirVideo service, Trafficland's subscribers have grown rapidly and currently have more than 60,000 AirVideo users, generating nearly $500,000 in revenue per month for mobile-only users ($7.95 per month). In addition to this kind of road monitoring business for public services, Trafficland's similar services include subway monitoring. In addition, there are factory-to-mine monitoring for enterprises and kindergarten monitoring and home monitoring for personal services. In Japan, NTT DoCoMo provides users with an actionable, interactive home monitoring application. NTT DoCoMo's video service is packaged in i-mode. i-mode's overall service platform uses CS-based video solutions to provide real-time, stable and clear 3G video services. The monitoring-related services include personal applications and industries. Applications, personal applications for remote monitoring of children and pets in the home (can control the set of surveillance cameras to adjust the viewing angle), remote viewing of restaurant menus, etc.; industry applications are mainly used for railway companies emergency treatment, first aid Remote rescue of the center, real-time monitoring of the fire scene, live broadcast of special scenes of the TV station, etc. Users can receive real-time video images up to 15 frames per second by making a call. At present, DoCoMo has taken such business as one of the current key promotion services. At the same time, DoCoMo will also launch the "Felica" function mobile phone with non-contact IC card to the market, shifting the direction of business development to developing more close to people. In the business of life, electronic products and mobile phones are combined as much as possible to facilitate user's use, such as installing health detection devices on mobile terminals. Third, the development of the domestic monitoring market In China, with the launch of the “Global Eye†remote video surveillance service in 2004, China Telecom has achieved many application cases. The monitoring business has been developed to public security monitoring, car insurance damage, entry and exit inspection, pollution source monitoring, and business network monitoring. , mining and production workshop monitoring, traffic environment monitoring, power station monitoring, water level and reservoir monitoring, campus monitoring, tourist attractions hotels, gas stations and oil depot monitoring, real estate site monitoring and other monitoring areas. On the basis of meeting the general needs in the early stage, the global eye business has gradually become a two-level differentiation trend: the public security, meteorological bureau, inspection and quarantine, urban management and other party and government military departments, for the purpose of supervision, the image quality requirements are very high, urgently needed The digital global eye can reach the level of analog monitoring; while Internet cafes, entertainment venues, public security joint defense, high-end residential units and other units require very low costs, and urgently need to develop low-end global eye standard products. The needs of ordinary enterprises, such as warehouses, terminals, workshops, field operations, etc., the current global eye can fully meet the needs. Taking the public security industry as an example, since the "911" incident in the United States in 2001, the SARS epidemic in 2003, and the highly pathogenic avian influenza epidemic in 2004 and 2005, China's governments and departments at all levels have attached great importance to the sudden Public emergency response system and construction of a safe city project. In the construction of “Safe Cityâ€, its core is the urban alarm and monitoring system. The construction of urban alarm and monitoring system is also an important part of the social security prevention and control system. In order to further develop the alarm monitoring system, the Ministry of Public Security will plan to implement the “3111†pilot project across the country. At present, the Ministry of Public Security has identified 22 cities as pilot units of the “3111†project nationwide. The city alarm and monitoring technology system can be summarized into two subsystems: public safety video surveillance network and social alarm technology defense network. The public safety video surveillance network refers to the high-speed dome camera built by the government in the "three ports" and "three districts" as the main video capture equipment, supplemented by automatic identification of vehicle licenses, bayonet, illegal violations, and security incidents. System-integrated video surveillance and alarm system for evidence collection and convenience visual alarm devices; social alarm technology anti-monitoring network refers to video surveillance and alarm systems that have been installed or newly installed by various social units. This system is mainly based on fixed-point cameras. The alarm button and the intrusion alarm system are supplemented, and the systems independently operated by the respective units are unified in the remote video monitoring and alarm service platform operated by the city network. Through the integration of the two networks, it not only greatly expanded the social monitoring surface, but also provided the convenience of the alarm service for the social security system of all units to access the public security organ monitoring center. Taking Guangdong as an example, last year, Guangzhou issued the “General Implementation Plan for the Construction of Video Surveillance System for Public Security in Guangzhouâ€. The program clearly pointed out that Guangzhou should complete the installation of 250,000 electronic eyes in two years, including 160,000 new ones. More than 90,000 need to be rebuilt, and Guangzhou will spend 1 billion yuan to build a public security video surveillance system this year. In the quality inspection industry, it faces the implementation of the new “three-electricity project†of electronic declaration, electronic supervision and electronic release. At the current stage, the two-headed electronic declaration and electronic release of “New Three Powers†​​have passed the CIQ2000-based information construction. To achieve this, only the relatively weak electronic supervision has become a bottleneck restricting the goal of “speeding up, reducing burdens, increasing efficiency, and strict supervisionâ€. As an important part of electronic supervision, the inspection and quarantine system should build a brand-new electronic surveillance video surveillance system covering key national regulatory enterprises and provincial and municipal bureaus. The scope of monitoring includes monitoring of production processes and production environments of key enterprises; monitoring of land and seaports such as terminals, passages, yards, gates, etc.; monitoring of internal work links such as inspection sites and inspection front desks; monitoring capacity is large. In summary, the telecom-grade video surveillance system must meet the business needs of three major user groups, such as industry-specific network users, public network customers, and ordinary individual users. Industry-specific network users require high-quality, secure video surveillance systems; large public network customers require highly flexible virtual private network experiences; individual users require accessibility everywhere. Fourth, the key factors of the carrier-grade video surveillance system In the industry application, the operator's video surveillance service has begun to take shape in the industry. How to make these images can be monitored to the maximum extent at any time and anywhere for the scale of thousands of front-end points in the country. How to reasonably and effectively deploy and ensure long-term stable operation of the system, and get timely maintenance and management, how to communicate with other systems in other regions is the main problem to be considered by the operator's video surveillance system. In personal and home applications, there are some applications for individuals and families, but they are still in their infancy, and the scope of application is small, and the types of business are relatively messy and scattered, especially for some new personal and family-oriented applications. Business functions vary widely, lacking the market influence and market appeal generated by a unified brand. Compared with the current video surveillance system, the following problems are common in practical applications: (1) The stability of the system is poor. The phenomenon of system interruption service is more common; the key components of the system core platform are basically not equipped with load balancing capability, or are not deployed accordingly; when using B/S mode for video monitoring various operations, subject to client environment (such as plug-in , parameter settings, etc.) have a great impact, customer perception is poor; (2) It is unable to adapt to large-capacity deployment, and the rapid development of video surveillance services has placed high demands on the capacity of the platform. At present, the scale of platform access used by the existing network is basically below 5000, and the capacity is insufficient. serious; (3) The flexibility and openness of the system are poor. The existing platforms are independent of each other. There is no standard agreement, which is not conducive to flexible use and interoperability between platforms. External APIs are not provided, and secondary development is difficult; The interface protocol of the client is not standard. When there are access requirements, the customization is developed. The platform is basically closed, and there is no business process with each supporting system. The system is difficult to integrate with the management information system of the same industry, and it is difficult to 3G, intelligent identification, license plate recognition system, etc. are effectively integrated and so on. (4) The network management capability is weak. The system does not have a special equipment management system, including the unified network management of the front-end and the platform. The fault alarm function needs to be strengthened. The statistical analysis function and fault handling and fault diagnosis functions are weak, which cannot meet the carrier-class operation and maintenance. Demand. In summary, the so-called carrier-grade video surveillance system is a video surveillance system with carrier-grade features built by operators to meet the urgent needs of the market. Through the carrier-class video surveillance service promoted by operators, users can monitor and manage the monitoring targets in real time regardless of time, location and terminal restrictions, and achieve unified monitoring, unified storage and unified management across regions across the country. Fundamentally, this system must have the following features to be called a carrier-grade video surveillance system: Large-capacity features: support large-scale, high-capacity carrier-class platform architecture, support large-capacity front-end device access, media forwarding, customer access and video storage tasks for nationwide services; support flexible networking from full distribution to full concentration Deployment; and can uniformly allocate resources to maximize resource utilization. Operational features: The platform can achieve operational and maintenance capabilities through the carrier-class network management and service management. The carrier-class network management supports the management of all network elements including the front-end video server and platform server. Complete network management functions such as configuration management, fault management, performance management, user management, and billing management in accordance with ITU-T specifications; conveniently provide guaranteed carrier-class services to different types of customers simultaneously. Through the operator's strong professional technical team, it is to give the system and users a true carrier-grade guarantee in terms of manpower and material resources. Establish a virtuous circle of long-term, sustainable development. Scalable features: The platform should support the core processing unit to support distributed and load-balanced deployment, and adopt multi-level architecture to support the expansion of the platform system itself; core servers, distribution, codec and other network elements that carry large-capacity service access Support flexible expansion, smooth expansion, and provide an open, shareable interface to facilitate future integration with a variety of new technologies, such as 3G, intelligent identification applications. Interoperability: The platform architecture supports multi-domain interconnection, multi-level service management; and provides a standard network element structure of standard protocol interfaces; it can interoperate with platforms in different regions at the service level or network level. Maximize the integration of different resources to achieve interoperability. Security features: This is the most important and unreplicable feature of carrier-class systems. The so-called carrier-class security mainly includes device security and operational security. Device security includes network element device redundancy protection and storage redundancy protection. Network equipment security management; operational security includes key data disaster recovery/backup, multi-level security authentication mechanism, network privacy protection (VLAN/VPN), and network element automation operation management; among them, multi-level security authentication mechanism has perfect authority management function, which is clear Differentiate the permissions of business managers and business users; multi-level security authentication mechanism should support the platform for secure access and authentication of client software, front-end devices, and platform devices.
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Figure 1 Video surveillance market composition forecast
