Safe city on large-scale video surveillance systems building needs (1)

Urban security monitoring of key major integration in road traffic, security association management in two parts.

Order hip tube mainly related to the commercial and financial center, community, entertainment centers around the zone, important units key venues surrounding, city, etc, it will need to alert when an exception occurs, and you can track the location of suspect target for easy after the incident of forensics and investigation. Road traffic section is primarily focused on the road, crossing via real-time monitoring traffic flow, control and provisioning of commuting to alleviate the pressure of urban traffic. At the same time, road traffic can be combined with intelligent transportation, vehicle violation through for speeding and red light, capture, record, process.

According to the overall harmonious social needs, the establishment of the monitoring point, bring the system and the police station in the city and the Superior General Directorate of Public Security Bureau to, and interconnection of multi-level and city 110, 119, 122 network merge, ensure that event occurs, road traffic management, public security, law enforcement and other authorities to immediately grasp the scene picture, and assist the superior command of the scene, do it right, it can be found on, greatly improving the managerial efficiency.

Needs analysis

Video requirements

City-video monitoring in video surveillance point was established under the focus of urban security, these established cloth handles mainly concentrated in the commercial, financial Street, community, entertainment, major roads, transportation etc, cloth handles to image capture and audio capture and alarm information acquisition and other equipment.

Departments through the image to see all the Chief charged of city in real-time, sensitive area for real-time transmission of image requirements: to ensure a clear image, the image delay is less than 300ms; images of coherence, not smearing, mosaic; ensure the functions of administrator at the first opportunity to grasp real-time, clear high-quality video images.

On the one hand, urban security and video surveillance systems to do event handling, on the other hand also fly to urban management functions reserved data information, this will require the implementation of real-time browse image, an image of a video, 24 hours a day.

For city-video monitoring application of such a large system, for storage of design requirements for perfect, hierarchical storage, distributed storage to fit the needs of each city is different.

In addition, the video surveillance will also need to capture the image immediately, later clip function for relevant responsibilities to departments in the late-filing.

Alarm requirements

Police information processing for a city-video monitoring system has its own terms.

To reduce equipment investment and guarantee the unity of the system, select the enable video transmission and alarm linkage of video surveillance systems are essential requirements. The alarm message transmission over the network to the command center and 110 command center through system platform linkage processing function, which allows police officers to be the first time get event information, requires a system of processing latency less than 300ms.

Networking requirements

For the safety of life and property relating to the people of the city-video monitoring systems, has its specificity, to the police station, branch, urban data information sharing.

This requires that the system supports multiple levels of the network, to support the local police station, police station, the PUC's three-tier management system, full-screen video, audio, and alarm information sharing.

Smart management

Urban security video surveillance system to fully embody the intelligently manage, via the back-end intelligent management, can be realized on the full system management and configuration; easy video information browsing, recording, and a variety of resources for the query; the effective application of parameter configuration.

Through city security video surveillance system can effectively assist urban management functions ensure the city in an orderly manner. At the same time, a good system to provide secondary development capabilities and upgrade interfaces to meet urban video monitoring point constantly updates growth requirements.

System design

Urban security video surveillance system can guarantee through networking, police stations, stations, a Council officer-browse the District of security situation.

When the alarm occurs, the individual monitoring center through various linkage alarm implementation means, the line manager can handle the alarm information in a timely manner; while system linkage 110 command center, presents a timely exhibition at 110.

For professional-grade large hierarchical distributed video surveillance system, the requirements for a single server can support 128-channel real time video and 400 road forwarding.

The entire system requires both devices automatically finds and inspection, image-based analysis and snapshots retrieve, cloud lens control and remote management, personalized browsing with multiple maps, and other functions. Good multi-tree multi-level tree-level framework that can guarantee the safety and effective operation of the system, in line with the current domestic market user habits and international monitoring development direction. Below are based on network video codec system as an example.

Front end audio and video sampling point

Since each city limits of the network environment and the urban monitoring points are not centralized, resulting in a city monitoring access point video images are different, but in the same city there may also be used for different solutions, such as wireless, cable, ADSL, XDSL, different network access point.

This requires front end audio and video capture device supports different network access for network and city environment applications.

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