Safe City monitoring network development discussio

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a) Background

safe city as a basic national policy

2004 年 10 15, President Hu Jintao \building a moderately prosperous society in an important guarantee for building a socialist harmonious society is a necessary requirement. China's public security organs should strive to effectively improve the ability to control public order situations. To combine punishment and prevention, with special groups, relying on the masses , set up a regular strike hard working mechanism, strengthen and improve the comprehensive management of social security mechanism, comprehensively promote the Social Security Protection System, continue to severely crack down on serious criminal activities, to ensure the overall stability of social order, to ensure that people continue to enhance the sense of security . Third, to effectively improve the ability to handle emergencies. establish a unified command, responsive, coordinated and efficient operation of early warning and response mechanisms. Fourth, to effectively improve the economic and social development of the capacity for economic and social development provide quality and efficient service. \

2005 年 2 19 February, President Hu Jintao at the \justice, sincerity,[link widoczny dla zalogowanych], amity, vitality, stability and order, man and nature live in harmony. \trends, in order to facilitate and improve an effective mechanism for maintaining social stability, to ensure that the masses live and work. \

2006 年 1 8, to improve the government to protect public safety and public emergencies ability to maximize the prevention and reduction of public emergencies and the resulting damage and protect life and property safety of the public safeguard national security and social stability, promoting economic and social comprehensive, coordinated and sustainable development. The State Council issued the \norms, strengthen management; 5, rapid response, coordinated response; 6, rely on technology to improve quality. \

urgent need for police training and technology

With economic development, urban construction accelerated, resulting in densely populated cities, mobile population, led to the construction of urban traffic, public security, prevention and other key areas of urban management issues. Especially in recent years the face of the city's new anti-terrorism issues, in particular for public security management work in crime prevention and law enforcement with new challenges. The increase in the public security police can not meet the actual needs of the pace of development, so can science and technology to combat the city into a direct security video surveillance has become an important means to solve the problem. Construction of urban law and order image monitoring system, the city police station, Public Security Bureau, Urban Council, the ministries and agencies a multi-level image monitoring system networking, and linkage with urban 110,119,122 command center to ensure the event occurs, the corresponding public security organs departments can take the first picture the scene, and to assist higher command site, to improve management efficiency and the management of emergency response capacity. This is to protect people's lives and property, construction, safe cities, the importance of building a harmonious society.

(b) of the typical solutions

Safe City Monitoring program: non-compressed digital video surveillance systems

to large-capacity optical fiber transmission system based on the exchange, set video, audio, data access, transmission and switching functions in one of the digital video network switching platform. Integrated transmission using optical switching platform can easily cover the entire city building high-quality digital video network, will monitor the tentacles extend to every corner of the city, and from a community policing, police station, branch, to Urban, the provincial Office of the video networking.

system functions and features:

■ all-digital non-compressed video lossless transmission and exchange, to ensure the quality of broadcast-quality video signal, the signal through the multi-level transmission, to a large screen in the command center of perfect reproduction.

■ supports star, bus, ring, tree and other forms of network topology to adapt to China's Security Management of the multi-level, hierarchical management system.

■ be able to achieve in a single fiber bi-directional transmission of multiple video, saving transmission equipment and fiber resources.

■ Large-capacity multi-service integrated access transport platform, except for video transmission outside also provides audio,[link widoczny dla zalogowanych], data, Ethernet and other interfaces. In the construction of urban public security video surveillance system at the same time, lower cost to the basic units of Police an extension of the network.
■ matrix of optical fiber transmission and switching functions in one, reduction of intermediate links.

■ all use a modular design, based on actual demand, using different functions to achieve the system board to facilitate the expansion.

■ multi-service integrated access: such as video, audio, data, Ethernet, E1, switch and other signals.

■ 2.5G optical transmission technology using a single optical fiber can transmit 16 channels of non-compressed video signals.

■ node backplane switching capacity of 5G-40G, 32 -256 local output video.

■ powerful network management capabilities: a node can be realized, board monitoring, on-line for system management, maintenance and configuration, real-time monitoring and allocation of network bandwidth resources.

■ integration and openness: The system has been integrated with the mainstream front-end camera control protocol, the system provides an open interface to the secondary development, you can easily achieve integration with other systems.

Safe City Monitoring Programme: Analog Matrix + codec network monitoring system

now many cities have been built to simulate some of the core video matrix video surveillance system, and with this year's Golden Shield Project to the construction of public security, has been basically completed the city's public security covering the entire private IP network. How the existing network, to achieve the interconnection matrix and share video resources to maximize the potential of mining the existing equipment to play the combat effectiveness of the system, but also the construction of urban surveillance system must face.

Internet as a concept to build video, make full use of existing system resources (such as the analog matrix, video encoder, storage server, etc.), digital, analog video systems combine to form a resource sharing, Internet Internet control, and convenient new generation of network video systems. Be completed video capture, compression, transmission, control, storage, retrieval, playback, alarm linkage, electronic maps, remote network access, Internet downloads, and other powerful functions, so that the existing image monitoring system Traffic Police Traffic Police video network upgrade.

system functions and features:

■ real-time image control: the ability to television wall, ordinary computer terminal on the monitor, and network real-time image viewing and for video switching, front-end control, video rotation and other conventional monitoring.

■ Large-capacity distributed video live: in a limited network resources, environment, multiple users can simultaneously watch online any network within the system real-time video data.

■ module mixing of video surveillance systems: supports multiple analog matrix system and video codec devices, analog video and digital video to achieve seamless integration.

■ improve the video scheduling strategy: The system can be based on the use of video resources, and user permissions, dynamic allocation and management of video lines, good access mechanism of conflict.

■ system based on POSA (PowerOnStreamingArchitecture) open system architecture can be compatible with different video codec standards such as: MPEG2, MPEG4, H.264, and even compatible with different video codec equipment manufacturers .

■ Large-capacity distributed storage structure: The system supports a variety of mass storage solutions and storage devices, such as: storage servers, NAS, SAN and so on.

■ system uses frame-based video retrieval and query tag technology, each frame of video images stored by adding tags, the structure of video data processing; and using technology similar to Google search engine for video retrieval and query.

■-demand video streaming and playback of VOD based media technology.

■ centralized network management: Remote configuration via the network, enabling online software upgrades.

Safe City Monitoring Program III: The DVR-based video networking surveillance system
hard disk video recorders (DVR) to low-cost, easy to use features, video surveillance system in recent years has been widely used, particularly in the police station, residential areas, banks, shopping malls and so on, have a very high market share. DVR brand as uneven, construction Shiyou lack of unified planning, the formation of a large number of the DVR-based surveillance system in isolation. Security monitoring system in urban construction, for some edge access layer, such as police stations, security stations, as money reasons, the main building needs to DVR monitoring system. How large number of these to DVR-based surveillance system into the monitoring network in the city, full sharing of video resources, maximize system investment savings, is currently facing a problem.

network video management platform using advanced technology platform layer is divided into three layers, namely: technical support layer (composed of a variety of digital and analog equipment), application service layer, the user application layer (various client software). The application service layer shielding the technical support level, to avoid the user and device interfaces directly to simplify the user. The platform also has multi-level networking capabilities,[link widoczny dla zalogowanych], from a police station, branch, PUC and networking between ministries and agencies; camera can update the list from a police station, between the branch and the PUC to automatically download and upload to ensure that list of all client camera real-time updates; has a strong plan for editing and management capabilities, users can carry out the screen and camera editor plans a free combination, and can flexibly set the camera preset position; using unicast forwarding techniques to avoid over-reliance on the network platform; platform security and management module runs on a variety of equipment platforms and real-time detection and fault diagnosis.

Safe City Monitoring Programme four: a single-stage structure of the digital video networking surveillance system

system architecture of the solution to all-digital network video frame, the \repeatedly conversion, aspect too much, the quality of video display and control the effects of rapid response is not very good.

all-digital network video frame is too high dependence on computer networks, and the structure is a single, all digital video equipment, video management and storage platforms are the only rely on computer networks, if network failure, particularly core switch fails, the entire video system will face paralyzed. In addition, the security of computer network system management and maintenance are posing a challenge, especially domestic users of computer network security management technology is weak, and consciousness, is bound to affect the security of the system information.

the lack of emergency backup system design concept: that once the core management server, or core network equipment failure or face paralysis, other systems can be added. Currently, a large number of successful application of video systems is the \matrix can be adjusted in real time to see the image; analog video matrix problems, hard disk recorders can be adjusted in real time to see and store images complement each other.

digital video networking is not mature enough, although in some small or local video system in the application of digital video systems, but it can not overcome the codec itself, the stability of performance is poor, and the delayed response computer network transmission of data due to the uncertainty caused by transient network congestion and other intermittent conflict, affecting the image display quality and timeliness of control response.

(c) the development of City Emergency Command and Control System visit

Safe City Safe City Monitoring System is an important part of the eventual development of the city safe is the city emergency command and dispatch system.

City Emergency Command and Control systems are widely used for police, traffic police, government agencies, military bases and other needs in the emergency dispatch and real-time monitoring requirements of the occasion. System, extensive use of advanced signal processing, computer networks, multimedia and other high-tech means of information integration, in order to construct the user control and technical control of the complete combination of integrated urban emergency command and dispatch system.
(1) System components

City Emergency Command and Control System includes:

■ Emergency Command and Control System integrated subsystems

■ Integrated Command and Control and Alarm Subsystem

■ City police interaction and monitoring subsystem

■ traffic control and management subsystem

■ GPS vehicle location monitoring subsystem

■ GIS subsystem

■ Integrated Information Management subsystem

through a variety of detection, control technology and the integrated use of network technology, pose a broader, multi-level, full range of City Emergency Command and Control System.

(2) System Components

(3) to achieve functional

■ information collection capabilities

■ management control functions

■ information query and statistical functions

■ illegal entry features comprehensive data

■ illegal blacklist generation

■ conditions analysis and forecasting capabilities

■ management decision function

■ Command and Control Function

■ Police management

■ system operation management functions

■ device information management system