Intelligent traffic signal system before the "LED" view

Chinese traffic according to the "fifteen" plan, by the end of 2005, Chinese highway total mileage will reach 1 million 600 thousand km, the highway will reach 25 thousand km, China highway transportation industry is undergoing a period of rapid development. With the implementation of the "fifteen" plan, the construction of intelligent traffic signal system is imminent. Developed countries have a high level of intelligent signal systems. New York intelligent traffic signal system was built in the last century in 70s, after 30 years of efforts, has built a set of advanced, intelligent traffic signal control system. The heart of the system is located in Queens City, New York city traffic management center, with 86 closed circuit television, is responsible for the city's 5 districts of the main road traffic conditions to monitor the. In addition, it is also responsible for the management of 6600 traffic lights in New York and the use of 4000 vehicles to determine the flow of the ring detector. The center has a huge photoelectric display, tracking the dynamic changes of all traffic lights in Manhattan. Once a road traffic accident or traffic jams, the center of the computer will immediately issued a directive, re programming of the signal lamp nearby; CCTV will immediately at the scene, and the traffic accident to provide timely information for staff to deal with. At present, China's transportation industry focused on the construction of IT based information platform construction and application system construction, which led to the huge demand of infrastructure for intelligent transportation products market has become one of the most active market, the photoelectric LED full color display screen limelight Masamori concentrate the most advanced technologies in many fields of modern optics, electronics, computer etc. which is widely used in various fields of traffic, city construction. Light source LED (light emitting diode two) is a new type of display and lighting materials, the country is vigorously promoting LED instead of traditional lighting appliances. Since the beginning of the 1990s China began to enter the field, and included in the national "863" plan, since 1993, the industry average annual growth rate of around 40%, which belongs to the rapid growth and development of emerging industries faster, 2003 sales of about 24 to 3 billion yuan. LED full-color display is in the past two years began to be used in the field of modern road traffic facilities, outdoor sports events, cultural activities and other fields. At present, the world's largest, an area of 550 square meters of LED full-color display made by DESAY optoelectronics group, installed in New York, Manhattan. In 2001, DESAY invested more than 200 million yuan to enter the LED full-color display market, after several years of rapid growth, has been among the world's top three, one of the world leaders in the industry, enjoyed a high reputation in the world. Not only is the outdoor electronic display screen, display traffic and road traffic in the F1 track, outdoor display, International Olympic venues, NBA stadium, Oscar awards at home and the Forbidden City in Beijing "three high" concert in Tianjin Free Trade Zone International Auto City, Jiangsu province Jiangyin city pedestrian street -- DESAY has photoelectric color display popular all over the world.