The invention relates to the technical field of airborne flight management, and discloses an airborne FMS air route aircraft isochronous point calculation system and method. Latitude and longitude coordinates of known parameter geographic coordinate systems such as related airport positions and air route point positions are converted into a spherical coordinate system, isochronous points are directly calculated, and the calculation result is more direct and reliable and high in practicability; the problem that time and labor are consumed when repeated iterative calculation is carried out on a two-dimensional plane in the prior art is solved, and then flight safety is guaranteed. Especially, it can be ensured that a pilot can quickly and accurately determine an isochronous point under necessary situations such as an emergency, and the unit can quickly give an optimal landing preparation decision.
本发明涉及机载飞行管理技术领域,公开了一种机载FMS航路飞机等时点计算系统及方法:将相关机场位置、航路点位置等已知参量地理坐标系的经纬度坐标转换到球面坐标系下,对等时点直接进行计算,计算结果更加直接可靠,实用性强;规避现有技术中在二维平面上进行反复迭代计算耗时耗力的问题,进而保证飞行安全。尤其是可以确保在紧急情况等必要情形下飞行员快速且准确地确定等时点,机组迅速给出最优备降决策。
Airborne FMS air route aircraft isochronous point calculation system and method
一种机载FMS航路飞机等时点计算系统及方法
2024-04-16
Patent
Elektronische Ressource
Chinesisch
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