
China's urban rail transit construction has ushered in a golden decade. At present, intelligent transportation has already demonstrated its value in specific projects or specific areas, such as the Olympic Games, the World Expo, and the upcoming Asian Games, such as the supervision of ETC and GPS transportation vehicles. Road monitoring, etc., at least in terms of management, the powerful function of intelligent traffic has been verified, and has also won the trust of managers. In terms of service provision, traffic guidance systems in some cities such as Shenzhen, Shanghai, and Beijing are already well-established in certain key areas; dynamic traffic information services have also begun to take shape. Many map terminals are now able to provide real-time traffic dynamic information; GPS is even more accessible. The scale of popularization is not far away from the days when passenger transport logistics and special-industry vehicles have been wiped out.
However, the existing problems are also more prominent. The first is the core technical issues. Because intelligent transportation is a comprehensive application field that spans many technology industries, RFID, sensors, wireless communications, GPS chips, etc. are highly dependent on foreign technologies and products. The other major aspect is that the construction of intelligent transportation is highly dependent on the management needs, that is, the government needs, and the service demand is that the commercialization has a limited effect on the intelligent transportation.
At present, many industries in China are formulating the Twelfth Five-Year Development Plan to clarify the development principles, directions and goals for the next five years. I believe that in the near future, we can see the 12th Five-Year Development Plan for Intelligent Transportation. By then, we will verify that the content of this issue of the current issue is in line with or similar to the 12th Five-Year Development Plan of the Ministry of Science and Technology.
It is only now that our span is 10 years, spanning two 5-year plans, but the general trend of development should be consistent. Let's first look at some of the deductive data related to the grand environment for the development of intelligent transportation in 2020 (of course, the biggest premise is that we are convinced that humans and the Earth can successfully survive 2012):
A few days ago, the latest China Financial Policy Report 2010/2011 released by the Institute of Finance and Trade Economics of the Chinese Academy of Social Sciences points out that by the end of 2008, China’s urbanization rate had reached 45.6% and China’s urban population had reached 607 million people. If we increase at a rate of 1%, by the end of the “Twelfth Five-Year Plan†period, China’s urbanization rate will exceed 50%. By 2020, the urbanization rate will reach 55%. China’s urban population will exceed 800 million, accounting for 60% of the total population. . Automobiles and commercial vehicles will play an important role in transportation within and between towns.
By 2020, the mileage of Chinese railways will reach more than 120,000 kilometers. Among them, the new high-speed railway will reach more than 16,000 kilometers; together with other new railways and existing line speeding, China's railway rapid passenger network will reach more than 50,000 kilometers, connecting all provincial capitals and cities with more than 500,000 population, covering 90% of the country The above population.
Up to now, 36 cities in China have reported urban rail transit construction plans. From 2009 to 2020, the new operating mileage of urban rail transit will reach 6,560 kilometers. It is expected that by 2020, the cumulative operating mileage of urban rail transit in the country will reach 7,395 kilometers. Calculated at a cost of 500 million yuan per kilometer, urban rail transit will spend 3.3 trillion yuan in 2009-2020, reaching an average of 270 billion yuan annually. China's urban rail transit construction will usher in a golden decade.
The application of security in China's rail transit has been accompanied by the vigorous development of urban rail transit construction in China, and the demand for rail transit for operational safety has grown rapidly, becoming a new application area for security systems.
From the perspective of the composition of the rail transit security system, it is currently mainly composed of video surveillance systems, intrusion alarm systems, entrance and exit control systems, communications systems, electronic inspection systems, radioactive object detection systems, toxic gas detection systems, and flammable and explosive chemical detection systems. Gun and ammunition detection systems, explosive detection systems, physical protection systems, etc.
From the perspective of the application area, the rail transit security system is mainly distributed in stations, trains and along the track. At present, the application of rail transit security systems is mainly concentrated in the stations, and the proportion of investment accounts for more than 60% of the investment in the overall security system construction. It is mainly based on video surveillance systems, entrance and exit controls, dangerous goods inspection, and physical protection systems. Monitor and ensure the safety of passengers; the proportion of investment in security systems in trains is relatively small, less than 10%; mainly based on video surveillance, train operation monitoring, door monitoring, fire monitoring and other systems, to ensure the safe operation of trains and passenger safety in the vehicle Tracks are mainly based on electronic patrol systems, intrusion alarm systems, chemical and toxic gas monitoring systems, and fire and environmental monitoring systems to ensure the safety of the train operating environment. From the product point of view, video surveillance is currently the main means of rail transit safety protection, mainly used in the monitoring of the situation in the station and the carriage, the station video surveillance has a higher requirement for real-time, and the train application is mainly based on post-inquiry. In general, video surveillance systems account for about 60% of the total cost of security systems. The main equipments for video surveillance include front-end fixed cameras, dome cameras, arrays, optical transceivers, DVRs, and monitors.
The development trend of rail transit security technology The rail transportation security technology is moving towards the trends of digitalization, high-definition, networking, intelligence, integration, and integrated security management. In the future, rail transit security applications will be more complete and more efficient. Security video surveillance industry usually divides the development of video surveillance technology into four stages: analog surveillance, digital surveillance, network surveillance, and intelligent surveillance. The application of wireless transmission technologies such as 3G mobile communication system, wireless local area network (WLAN), and broadband wireless network (WMAX), and the widespread deployment and rapid development of IP networks have promoted the realization of wireless video remote monitoring. According to the application requirements of the video system under networked operation, the newly-built subway video surveillance system should develop into a multi-level network including station-level monitoring, line-level monitoring, network-level monitoring, and municipal-level monitoring. At present, in rail transit security applications; not only video surveillance systems (CCTV), traditional alarm monitoring systems (ALM), access control monitoring systems (ACS), power monitoring (PSCADA), station public and emergency broadcast systems (PA) And so on are all moving towards networking.
At present, the total mileage of rail transit lines in China is about 1,000 kilometers, and the number of stations is more than 600. According to the average of 40 video monitoring points for each subway station, two video monitoring points for each carriage, and one video monitoring point every 200 meters along the tunnel, China’s urban rail transit security system will have at least 40,000 video surveillance points. There are many rail transit monitoring points, large passenger flow, and the situation is very complex. It is difficult to rely on manpower to make timely and correct responses to various unexpected situations. Intelligent video analysis technology can use the powerful data processing capabilities of computers to The massive data in the video is analyzed and processed at a high speed, thereby completing functions such as traffic statistics, congestion detection, face recognition, intrusion detection and alarming, and legacy item detection, greatly reducing the workload of personnel and improving the accuracy of the system. Timeliness.
About Urban Rail Transit Construction The city's transportation system that uses vehicles to run on fixed rails and is mainly used for urban passenger transport is called urban rail transit. In the Chinese national standard “Common terminology for urban public transportâ€, urban rail transit is defined as “generally the general term for fast mass transit public transport using electric energy as the driving force and wheel-rail transportation methodâ€.
Urban rail transit refers to public transportation facilities with fixed lines, fixed rails, and transportation vehicles and service facilities. "Urban rail transit" is a concept with a relatively large scope and there is no unified definition at the international level. In general, urban rail transit in a broad sense refers to rail transit as the main technical feature. It is a rail transit system (not the same as road traffic) that has a medium- or higher-capacity transport capacity in urban public passenger transport systems. Unlike the intercity railway, it can cover public transport services in the suburbs and urban areas. It is a modern three-dimensional transportation system that plays a key role in urban public passenger transportation.
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