The invention discloses a method for determining isochronous points on an aircraft route. The method comprises the following steps: acquiring longitude and latitude coordinates of a starting point andan end point of a route segment to be flied, and forming a route segment route; obtaining longitude and latitude coordinates of the two selected standby landing reference points, and calculating relative displacement from each point on the route of the self-propelled segment to the two standby landing reference points; calculating the ground speed of the aircraft for executing landing preparationflight; calculating the time difference of flying to two landing reference points by combining the relative displacement and the ground speed; and solving the minimum value of the time difference, and determining the coordinate point corresponding to the minimum value as the isochronous point in the flight segment to be flied. According to the method for determining the isochronous points on theaircraft route, the position of the isochronous point can be accurately determined, and the calculation process and the consumed time of the isochronous point are kept stable under various conditionsso that the isochronous point can be rapidly and accurately determined under necessary conditions such as emergency conditions, and thus, the aircraft can make an optimal reserve drop decision in time.

    本发明公开了一种用于确定飞机航路上的等时点的方法,该方法包括以下步骤:获取待飞航段的起点和终点的经纬度坐标并形成航段路线;获取选定的两个备降参考点的经纬度坐标,并计算自航段路线上各点至两个备降参考点的相对位移;计算飞机执行备降飞行的地速;结合相对位移和地速,计算飞行至两个备降参考点的时间差;求解该时间差的极小值,将极小值所对应的坐标点确定为待飞航段中的等时点。根据本发明的用于确定飞机航路上的等时点的方法,能够精准地确定等时点的位置,并且等时点的计算过程和耗时在各种情形下都保持稳定,从而能够确保在紧急情况等必要情形下快速且准确地确定等时点,以便机组及时地做出最优的备降决定。


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    Titel :

    Method for determining isochronous points on aircraft route


    Weitere Titelangaben:

    用于确定飞机航路上的等时点的方法


    Beteiligte:
    WAN YUN (Autor:in) / LIU LICHAO (Autor:in) / ZHENG ZHIMING (Autor:in) / YU LIANG (Autor:in) / XUE FEI (Autor:in) / FAN LIUYI (Autor:in)

    Erscheinungsdatum :

    2021-03-19


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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