4D trajectory displaying method based on World Wind

Abstract

The invention discloses a 4D trajectory displaying method based on World Wind. The 4D trajectory displaying method based on World Wind comprises the following steps of disposing flight dynamic data of an aircraft; converting projection coordinates of the aircraft so as to obtain the projection position; introducing control airspace GIS data so as to obtain an airspace background; combining the projection position of the aircraft and the airspace background so as to obtain the projection position of the aircraft with the combination of the airspace background; and displaying the flight dynamic data of the aircraft in the form of comprehensive information and the like. According to the method disclosed by the invention, the three-dimensional airspace background of a display subsystem is rendered by utilizing a World Wind platform; the dynamic information of the aircraft is displayed by adopting a transparent target layer, and the position of the aircraft at the target layer is consistent with the three-dimensional airspace background by adopting a space conversion mode, so that relatively intuitive airspace dynamic information can be provided for managers, and the effectiveness and reliability of air traffic control can be improved.

Description

technical field [0001] The invention belongs to the field of display technology, in particular to a four-dimensional track display method for an air traffic control command system. Background technique [0002] Aircraft four-dimensional (4Dimensional, referred to as 4D) track is a method of accurately describing the spatial position (longitude, latitude and altitude) and time of aircraft operation in the form of space and time. System, referred to as NEXTGEN) and one of the important supporting technologies of the European Sky Integrated Air Traffic Control Research (Single European Sky ATM Research, referred to as SESAR) program. The operation based on 4D trajectory can significantly reduce the uncertainty of aircraft trajectory, and improve the safety and utilization of airspace and airport resources. At the same time, 4D trajectory is of great significance in flight conflict research, airspace planning, trajectory planning, flight simulation, air traffic control support ...

AI Technical Summary

Problems solved by technology

At present, more mature 3D display technologies, such as spectroscopic stereoscopic glasses and holographic projection, can achieve good 3D effects. However, the display systems built using these technologies are likely to cause fatigue to users and are not suitable for long-term use. Therefore, The display subsystem of the new-generation air traffic management system needs to meet the intuitive three-dimensional effect of the displayed aircraft 4D track, and also meet the requirements of the controller to be able to work in front of the display system for a long time

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