Wuhan International Airport has a huge daily flow of people, which poses great challenges to the airport's security. The video surveillance systems of the East Third, West Third Finger Corridors and related connecting buildings of the international airport terminal all use international advanced security technology to monitor the terminal 24 hours to ensure the safety and stability of the airport.
Wuhan International Airport requires a fully digital monitoring method, which can flexibly configure front-end and back-end equipment according to the needs of the airport. The system has great flexibility in upgrade, expansion, migration, and resource sharing. It also uses network redundancy, disk RAID technology, and controller redundancy technology to avoid single points of failure.
In the international airport video surveillance system, the selection of the front-end video acquisition equipment is very important, and it is relatively easy to overlook the front-end audio acquisition equipment. Most international airports use advanced million high-definition cameras. In recent years, they have begun to attach importance to audio monitoring, adding digital pickups to synchronize recording and recording with high-definition cameras.
In addition to the redundancy of controllers, power supplies, fans and other components used in storage devices, intelligent capacity management has also become a new development trend in video surveillance applications. The administrator only needs to set a very small capacity when pre-allocating the disk, and when the capacity is used to a certain threshold (a preset ratio can be set), the system will automatically allocate a certain capacity for its expansion. UIT's intelligent capacity management technology combined with MAID technology can truly achieve green energy saving, greatly reduce system power consumption, and extend system life.
The stable operation of the audio and video surveillance system at Wuhan International Airport fully demonstrates that both the pickup and the camera are indispensable equipment, and the storage products have been recognized by customers in the airport video surveillance system. The synchronous monitoring of audio and video guarantees the performance of the airport monitoring system and provides a strong guarantee for the normal operation of all safe operations at the airport.
2. Network transmission system:
The system transmits the data collected by each monitoring front-end device to the monitoring and management center through a wireless network. Combined with the actual situation of long-distance passenger vehicles, the choice of monitoring and wireless monitoring of long-distance passenger vehicles. Due to the mobility of long-distance passenger vehicles, the transmission of video signals must be wireless. In the current wireless transmission method, Wi-Fi coverage has not yet taken shape, and the cost of satellite and microwave communications is too high. Therefore, based on WCDMA, EVDO, TD-SCDMA's 3G wireless network is currently suitable.
3. Command and dispatch center:
It is a comprehensive information platform integrating computer network, communication network and intelligent management system. Through the establishment of a vehicle monitoring and management system platform, it realizes the centralized management control of front-end equipment and background monitoring, and is the realization of passenger transportation monitoring, command scheduling and scientific management. Infrastructure. The command and dispatch center is composed of call center, order receiving seat, dispatch seat, GIS workstation, complaint inquiry platform, squad leader seat, database server, switch, router, business network management monitoring platform, leadership inquiry desk and UPS equipment. Through real-time dynamic monitoring, Record query, network transmission, hierarchical control, authorized access, resource sharing and other methods to achieve real-time monitoring and scheduling of monitoring areas, locations, and important targets. The vehicle-mounted 3G monitoring and positioning system is a fully digital type with digital access. The front-end monitoring equipment encodes the analog signal into a digital signal through a digital encoding device, and accesses the control center through wireless and wired network sinks. The digital signal access to the control center is controlled by The management platform performs unified management, storage and display.
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