"China Civil Aviation Daily" and China Civil Aviation Network On March 20, an Airbus A320 aircraft used new four-dimensional track fine control technology for the first time on the Tianjin-Guangzhou round-trip route.

(Photo by Niu Mo)

"China Civil Aviation Daily" and China Civil Aviation Network Reporter Xu Zhongchao reported: On March 20, an Airbus A320 aircraft used the first four-dimensional track fine control technology to complete the test flight on the Tianjin-Guangzhou round-trip route. my country has become the second country in the world to organize this new technology pilot flight after France.

four-dimensional track control technology realizes real-time information interaction between the ground air traffic automation system and the aircraft flight management system , and can finely control the four-dimensional tracks (space three-dimensional and time dimensions) of the entire stages, such as flight taxiing, takeoff, climbing, cruise, approach , and landing. Based on the control and command of the past three-dimensional space (horizontal routes and vertical altitude layers), this technology has given flight waypoints a "controllable arrival time" and achieved "timed and fixed-point" throughout the flight. After applying this technology, the time accuracy of the control command will be increased from the past minute level to the 10 second level, and the efficiency of time and space resources will be greatly improved.

At the flight summary meeting, Wan Xiangdong, chief pilot of the Civil Aviation Administration, said that the application of new technologies is a long-term systematic project. In the process of applying new technologies in their respective fields, all civil aviation units must work hard on top-level design, connect different technologies and their application fields, and promote them in a coordinated manner; they must fully understand the significance and long-term interests of the application of new technologies, recognize the inevitable trends of the development of new technologies, strengthen learning, change concepts and awareness, and actively promote new technologies; they must focus and focus on improving the safety level and service quality of civil aviation, and do everything possible to transform new technologies into the full factor productivity of civil aviation as soon as possible, and give full play to the effects of new technologies.

Che Jinjun, director of the Air Control Bureau of the Civil Aviation Administration, said that TBO (operation based on four-dimensional tracks) has the characteristics of precision, coordination, and predictability, which is conducive to improving the safety level of my country's civil aviation, improving the utilization rate and operation efficiency of airspace resources, and realizing operational coordination, information coordination and system coordination. In the next step, the civil aviation control system will strengthen top-level design and draw a roadmap for the development of China's civil aviation control TBO; increase R&D investment, closely monitor the progress of large-scale I4D (initial four-dimensional track) demonstration and verification projects in Europe, and continue to carry out my country's TBO-related test application work; strengthen international cooperation and continuously enhance my country's international influence in the field of new air control technology research.

It is understood that in order to cope with the challenges brought to the air traffic system by the continued growth of air transportation, the ICAO regards TBO as the core operating concept of the next generation of air navigation systems. Among them, four-dimensional track fine control is the technical basis of TBO. In 2015, the Ministry of Science and Technology approved the "Air Traffic Track Operation Technology and Verification" project of the National Science and Technology Support Plan, which was jointly undertaken by the Air Control Bureau of the Civil Aviation Administration of China, Civil Aviation Data Communication Co., Ltd., Beijing University of Aeronautics and Astronautics , China Southern Airlines and other units. In the future, the civil aviation control system will continue to increase the research and development, verification, application and promotion of new air control technologies to promote the high-quality development of air control.