In order to solve the technical problem that an existing route segment automatic activation method is tedious and redundant in calculation, the invention provides a flight plan route segment automaticactivation method. The flight plan route segment automatic activation method comprises the following steps of: 1) acquiring a current position of an airplane and a magnetic difference thereof, and acquiring longitude and latitude of waypoints P1, P2 and P3 and magnetic difference thereof; 2) calculating magnetic course angles from the waypoint P2 to the waypoint P1 and from the waypoint P2 to thewaypoint P3; 3) calculating a magnetic course angle from the waypoint P2 to the current position point A of the airplane; 4) and subtracting a magnetic heading angle (from the waypoint P2 to the current position point A of the airplane) from a magnetic heading angle (from the waypoint P2 to the waypoint P3), marking an absolute value of an obtained difference value as K1, subtracting a magnetic course angle (from the waypoint P2 to the waypoint P1) from the magnetic course angle (from the waypoint P2 to the current position point A of the airplane), marking an absolute value of an obtained difference value as K2, and comparing the K1 with the K2, if K1 is greater than K2, not activating the waypoint P2 to the waypoint P3 and returning to the step 1), and if K1 is less than or equal to K2,activating the waypoint P2 to the waypoint P3.

    为了解决现有的航段自动激活方法计算冗余繁琐的技术问题,本发明提供一种飞行计划航段自动激活方法,包括:1)获取飞机当前位置及其磁差,航路点P1、P2、P3的经纬度及其磁差;2)计算航路点P2到P1、P2到P3的磁航向角;3)计算航路点P2到飞机当前位置点A的磁航向角;4)用航路点P2到P3的磁航向角,减去航路点P2到飞机当前位置点A的磁航向角,并对所得差值取绝对值记为K1;用航路点P2到飞机当前位置点A的磁航向角,减去航路点P2到P1的磁航向角,并对所得差值取绝对值记为K2;比较K1和K2的大小,若K1大于K2,则不激活P2到P3航段,并返回步骤1);若K1小于等于K2,则激活P2到P3航段。


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    Title :

    Flight plan route segment automatic activation method


    Additional title:

    一种飞行计划航段自动激活方法


    Contributors:
    WANG LIANGLIANG (author) / XUE FANGFANG (author) / FENG WEI (author) / LYU YAFANG (author) / TENG FEI (author)

    Publication date :

    2020-05-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

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



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