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In order to ensure the safety of airports and air transport, major airports throughout the country and around the world have continuously increased investment in security and security system construction, security systems have been gradually upgraded, and iris, face recognition, intelligent video and audio analysis technologies and other security technologies and products They are constantly being applied to the airport security system. The airport's security construction will also usher in a new round of climax.
Airports, especially large and medium-sized aviation hub airports, are like an independent "city", with large areas, large flight areas, large terminal buildings, large passenger and cargo traffic, and large aircraft takeoffs and landings. Management is hardly effective. It must rely on advanced technological precautions to achieve early detection and early stop, and to eliminate unsafe factors in the bud. It can be said that if there is no security system to support, the security of the airport is unimaginable. In the entire airport security system, the video surveillance system is one of the most important aspects, with common features such as multiple front-end points and wide distribution.
User application background
Nanchang Changbei International Airport was established in October 1996 and is located in the north of Nanchang City, Jiangxi Province. It is the mainline airport in China. In 2007, the expansion project of Nanchang Changbei International Airport was started and it was officially opened in 2009. The expansion project aims to build a new 100,000-square-meter terminal (T2 terminal), extending the existing runway from 2,800 meters to 3,200 meters, and increasing the parking space to more than 50 to meet the needs of Jiangxi Province. Increased air throughput. After the completion of the T2 terminal, the entire airport has been upgraded to 4E, which allows it to fully take off and land large-scale civil aircraft such as the Boeing 747 and take on a very important role as an aviation hub. It has also become an important window for opening up to the outside world and strengthening foreign trade cooperation and exchanges in Jiangxi Province. In order to promote economic and social development in Jiangxi Province, it has made important contributions.
The newly completed Changbei Airport Terminal T2 is a world-class terminal and has a high requirement for security systems. How to create a reliable, stable, advanced and compatible monitoring system has become the focus of designers.
Video Surveillance Camera Options
A total of more than 340 IP monitoring terminals were used at the T2 terminal of Nanchang Changbei International Airport. The function selection and design of the cameras are different for each specific key monitoring area. details as follows:
T2 terminal 1, send living room, take the living room
The drop-off hall and pick-up hall are the key monitoring areas for the entire terminal building. It is necessary to take into account the details of each person's activities and the local features such as clothing and appearance. How to ensure a smooth and clear high-quality monitoring screen while obtaining these detailed features is the focus of monitoring in this area. In this typical monitoring scenario, the following requirements can be summarized:
(1) The monitoring area is large and the scope is wide. The passenger transfer hall and the pick-up hall are spacious and densely populated. The camera requires a large depth of field and a wide range of fields of view. It can carry out all-round, no-failure monitoring and marking of specific people or objects.
(2) Scene light and dark contrast is strong, the phenomenon of backlight is obvious. Considering the architectural design of the terminal building, the passenger transfer hall and the reception hall adopt the steel frame structure design, and the outer side uses the fully transparent glass curtain wall. During the day, sunlight penetrates through the glass curtain wall directly into the terminal building. The direct sunlight and reflection of light from the marble floor form a strong backlit surveillance scene for the camera. Because the contrast between the light and the dark in the scene is large, the camera is required to have A certain degree of wide dynamic or backlight compensation.
(3) Insufficient nighttime lighting conditions, insufficient monitoring scene illumination. From 1am to 5am daily, it is the stop time of Nanchang Changbei International Airport. During this period of time, the number of people in the terminal building was relatively small. From the perspective of energy conservation and environmental protection, only a few lighting facilities were turned on. In contrast, the lighting conditions of the surveillance scenes during this period are relatively poor, and this is precisely the time of high security incidents in the traditional security incident. Therefore, the requirements for the sensitivity and noise reduction effect of the camera are relatively high, and it is required that the detailed features of the moving objects in the monitoring scene and the capture of the moving trajectory be clear and complete in a low illumination environment.
For the application features of the drop-off hall and pick-up hall, the Sony Network Camera and S were eventually adopted. Among them, the intelligent network dome camera is equipped with a powerful 26x optical zoom autofocus lens, which can flexibly rotate horizontally and vertically. It uses a high-sensitivity 1/4-inch SuperHADCCD and also has a voice alarm function. Additional functions such as the flip function can be used in many occasions. The SNC-CS20 uses Sony's newly developed ExwavePRO progressive scan CCD technology, in conjunction with enhanced color filters, to provide satisfactory high-quality images under a variety of conditions.
2. Check-in counter
The check-in island area is a key monitoring area for passengers to check-in and check-in. It is necessary to take into consideration both the specific operations of the service personnel at the check-in counter and the appearance features of the passengers who check-in and check-out outside the counter. How to obtain clear and smooth high-quality monitoring screens including the check-in operation of service personnel, communication with passengers, and customer facial features is the focus of monitoring in this region. For the application characteristics of this occasion, the Sony network surveillance cameras SNC-DS10 and SNC-DS60 were finally adopted. Both hemispherical cameras use Sony's newly developed ExwavePROTM progressive scan CCD technology with enhanced color filters to provide a satisfying high-definition even under low light conditions under a variety of conditions. Bright monitor image. In addition, the two also incorporate DEEPA intelligent video analysis technology, with intelligent mobile detection and intelligent target detection capabilities, providing 768 * 576 SD images per second 30fps, also has a rugged cover to meet the IP66 standard, providing users with very efficient And high-level security monitoring.
3, waiting room, isolation area
In the waiting room and the quarantine area, it is necessary to monitor the activities of the entire hall waiting passengers and staff, and to prevent accidents and emergencies in a timely manner. Therefore, the monitoring system must have a full range of monitoring perspectives so that uninterrupted observation of suspicious persons or objects in any direction. In addition, some monitoring scenes close to the outside transparent glass curtain wall have strong contrast between light and shade, which easily causes the dark areas of the image to be dark due to underexposure, and the details of the object cannot be clearly seen. This monitoring scenario is similar to the monitoring environment for the living room and the living room. Considering its various needs, the Sony network camera was finally adopted. This ensures that the horizontal and vertical PTZ rotation control can be achieved while covering a large area of ​​the monitoring area. And through Sony's high-quality imaging technology and high-sensitivity light-sensitive devices, the problem of blackening of the face in the backlight environment has been solved.
4, bag sorting, extraction area
In the baggage sorting and picking area, the monitoring system needs to satisfy the coverage of a specific monitoring area (for example, the manual sorting part of the baggage, the behavioral characteristics of the passenger in the baggage claim area, etc.). If it is impossible to achieve full coverage of the surveillance scenarios in these areas, once baggage loss or related disputes occur, it will directly increase the difficulty of such incidents in subsequent processing, and it will not be able to provide first-hand judgments for personnel. . Nanchang Changbei International Airport uses a Sony network surveillance camera in the baggage sorting and picking area. On the one hand, it seamlessly covers the relevant areas, and on the other hand it ensures that people can be clearly identified in a low-light environment. The characteristics of the object and the details of its behavior, which indirectly ensure the safety of passenger luggage.
T2 terminal outside the road side area 1, parking lot
Nanchang Changbei International Airport is equipped with four dedicated parking lots, which are social car parking, taxi parking, government parking, and commercial parking. In terms of monitoring requirements for outdoor ground parking lots, there are mainly the following requirements:
(1) The monitoring area is large. The outdoor parking lot covers a large area and requires a large viewing angle of the camera to take into consideration the situation of vehicles in the vicinity and in the distance.
(2) Outdoor application 24 hours a day. The parking lot camera is installed on the 6m vertical pole in the parking lot. Whether it is high temperature and high temperature or cold and cold weather, it must be able to work 24 hours a day, 24 hours a day.
(3) Clearly capture any movement of the surveillance scene in a low-light environment. In the environment with poor lighting conditions at night, it is the high incidence of accidents. In this environment, the camera needs excellent low-light performance, and it can clearly capture any movement in the surveillance scene at night.
(4) Have a certain strong light suppression function. In the night environment, compared with the surrounding environment, the requirements for the camera after the opening of the headlight of the motor vehicle are significantly increased, and the camera is required to have a certain strong light suppression function. Otherwise, the monitoring image will be bright, you can not see the content of the image information, but can not see the details of the vehicle's license plate and other details.
Comprehensive parking environment for the needs of surveillance cameras, the final use of Sony analog camera cameras meet the strict IP66 waterproof and dustproof standards, are widely used in airports, transportation, safe city, energy and other industries. It uses Sony's high-sensitivity Exwave HADCCD, which incorporates day and night conversion with optical infrared filters to achieve bright images even under extremely low illumination. In addition, the SSC-SD26P has a horizontal resolution of 540 TVL, a 26x optical zoom capability, and a certain degree of image processing with strong light suppression, making it possible to display the monitor screen in minutes. The operating temperature ranges from -40°C to +50°C, and it can be monitored 24/7 regardless of the cold or intense heat.
SSC-G818 is Sony's latest high-performance color camera, equipped with 1/2-inch high-sensitivity Exwave HADCCD, in line with Sony's latest image processing new film, to provide high-quality images of 540 lines while maintaining the high-sensitivity performance of the camera, regardless of Whether it is day or night that guarantees excellent image quality, it is ideal for high-end video surveillance applications such as city roads, highways, railways, airports, ports, and mania.
Using 1/3-inch SuperHADCCDII technology and Sony's latest DSP platform "Effio-E", can obtain 540-line high-definition images; In addition this camera has ATR-Lite automatic dark area compensation, iBLC intelligent backlight compensation, And day and night conversion function, and have excellent sensitivity performance, can show high-quality images, fine colors, excellent results.
2. Drop-off area and departure area
Drop-off area is another key area of ​​roadside monitoring. Pedestrians and motor vehicles in the area are numerous and are prone to traffic disputes. Similar to the parking lot monitoring, the cameras installed in this area must have IP66 outdoor protection level, good low light and strong light suppression performance, but also able to cover most of the monitoring scene. Taking into consideration the characteristics of various requirements, the Sony Network Camera SNC-RZ50P was eventually adopted.
Apron monitoring
The camera used for apron monitoring is installed in the airside area of ​​the T2 terminal and is mainly used to monitor the operation of the aircraft's bridge and bridge exit and the work process of ground staff. Similar to the cameras installed in the roadside area, cameras used for apron monitoring have high requirements for low illumination performance and PTZ performance. Finally, the Sony Network Camera SNC-RZ50P was also selected.
Conclusion
Compared with the monitoring system of Nanchang Changbei International Airport's T1 terminal station's pure simulation system, Sony's network cameras are mainly used, supplemented by a small number of analog cameras and video encoders. The new system created reflects the following value advantages:
The image is clearer Compared with the analog camera, the scene of the same area, the Sony network camera provides clearer images and more details, overcoming the dilemma that traditional analog cameras can see, but not necessarily clear. At the same time, the performance of the Sony network cameras in terms of wide dynamic capabilities and low illumination capabilities, etc., well solves the user's actual use problems and exceeds the user's expectations.
Simplified installation and implementation The monitoring image of Changbei Airport is transmitted to the monitoring center through optical fiber. In addition, a network camera that supports PoE power supply function is provided, and the power supply can be provided through the network, which greatly simplifies the workload and complexity of laying cables in the installation process.
Good system compatibility Sony's network cameras conform to the ONVIF standard, and SDKs and CGI development tools can be provided for free between the various devices within the system and with the cooperation system such as the alarm system, with good compatibility 0755-29165652. 0755-27490894,18926422390 Shenzhen Longzhijing Technology Co., Ltd.
Application of Sony Network Surveillance Camera at Nanchang Airport
In recent years, with the rapid development of China's economy, the air transportation industry has developed rapidly. The rapid development of the air transport industry puts forward higher requirements for airport safety management. At the same time, since the "9.11" incident in the United States in 2001, airport security has aroused the attention of governments of all countries and great concern of the international community.