The invention relates to the technical field of helicopter flight management systems, in particular to a semi-plane leg switching method for low-altitude obstacle avoidance flight. The method comprises the following steps: extracting flight plan information, calculating a turning direction according to azimuth angle information of front and rear legs, further calculating a turning angle, and calculating azimuth angles of angular bisectors of the front and rear legs according to the turning direction and the turning angle. And judging whether the helicopter meets the leg switching condition or not according to the sign of the yaw distance of the helicopter relative to the angular bisector. The leg switching method is irrelevant to flight technology errors, and the leg switching efficiency is remarkably improved.
本发明涉及直升机飞行管理系统技术领域,尤其是涉及一种低空避障飞行的半平面航段切换方法。该方法通过提取飞行计划信息,根据前后航段的方位角信息计算转弯方向,同时进一步计算转弯角度,根据转弯方向与转弯角度,计算前后航段角平分线的方位角,然后根据直升机相对于角平分线的偏航距正负号判断直升机是否满足航段切换条件。该航段切换方法与飞行技术误差无关,显著提高航段切换效率。
Half-plane leg switching method for low-altitude obstacle avoidance flight
一种低空避障飞行的半平面航段切换方法
2023-03-14
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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