Collision-free flight path planning method, device and system based on reachable time-space domain

Abstract

The embodiment of the invention discloses a conflict-free flight path planning method, device and system based on a reachable time-space domain and relates to the technical field of air traffic management and planning, thereby improving the flight safety of an aircraft in a four-dimensional flight path operation mode and reducing the workload of a controller. The method comprises the following steps: acquiring flight data of an aircraft in a cruise operation stage, and recording a real-time position and a planned flight path of the aircraft in the cruise operation stage in a three-dimensionalspace-time coordinate system; according to the planned flight path and a minimum safety interval in the three-dimensional space-time coordinate system, determining a reachable time-space domain of a main aircraft and an oblique cylinder protection area invading the aircraft; projecting the intersection of the reachable time-space domain and the oblique cylinder protection area invading the aircraft to a two-dimensional plane to obtain a set of conflict navigation modification points; and removing the set of conflict navigation modification points from the reachable time-space domain of the two-dimensional plane projected by the main aircraft to generate a conflict-free navigation modification point set and a conflict-free feasible navigation modification flight path. The method is suitablefor air traffic management.

Description

technical field [0001] The invention relates to the technical field of air traffic management and planning, in particular to a conflict-free track planning method, device and system based on reachable space-time domain. Background technique [0002] With the rapid development of my country's air transport industry, the contradiction between the increasing demand for airspace utilization and the shortage of real airspace resources has become increasingly prominent, and the phenomenon of airspace congestion and flight delays has become increasingly serious. The operating mode can no longer meet the needs of future development. [0003] In order to solve the problem of shortage of airspace resources and improve the utilization rate of existing airspace resources, our country has begun to turn its attention to the new operation mode based on trajectory, and has carried out successful test flights. Facing future large-scale and high-density trajectory operations, it is urgent to ...

AI Technical Summary

Problems solved by technology

[0004] At present, in the theoretical research based on trajectory operation, the research results of trajectory prediction and trajectory uncertainty are relatively rich, but the existing results are mainly biased towards the pre-tactical level, and there is no real-time and effective solution to solve the actual flight problems in the airspace method

In addition, the existing track models have defects such as complex modeling process, difficult mathematical solution, and low degree of visualization, and it is difficult to integrate them into a system tool that can provide auxiliary decision-making for controllers to resolve conflicts.

[0005] As a result, controllers still mainly rely on manual experience when making trajectory tactical allocation decisions, which requires high skill requirements and heavy workload, which is especially likely to affect the safety and efficiency of dense trajectory operations.

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