The invention discloses a flight safety early warning method and system based on a global grid, and the method comprises the following steps: S1, carrying out the global grid subdivision, and storing elevation data based on a coding mode of the global grid; s2, safety early warning: judging the safety level of a grid where the aircraft is located, and judging obstacle points by creating a sector in front of flight and sampling elevation points in a sector range; and S3, early warning drawing, performing regional coloring on a chart to indicate the safety level of the terrain, and marking obstacles in the sector with striking colors, thereby realizing auxiliary danger early warning. According to the method, the retrieval efficiency of the grid can be effectively improved, early warning can be performed in a shorter time to ensure the flight safety, the elevation points in the sector range are sampled, further early warning judgment is performed on the sampling points, and the early warning precision is improved; and grids of different levels can be adopted according to different precision requirements, so that flight early warning requirements of different precision requirements can be met.
本发明公开了一种基于全球网格的飞行安全预警方法及系统,包括以下步骤:S1、全球网格剖分,基于全球网格的编码方式,存储高程数据;S2、安全预警,判断飞机所处的网格安全等级,通过创建飞行前方扇区,对扇形范围内的高程点进行采样判断障碍点,S3、预警绘制,对航图进行区域着色指示地形的安全等级,在扇区内的障碍物以醒目颜色标记出来,实现辅助危险预警。该方法可以有效提升网格的检索效率,在更短时间内作出预警,以保证飞行安全,对扇形范围内的高程点进行采样,针对采样点执行进一步的预警判断,提升预警精度;根据不同精度需求可采用不同层级的网格,适应不同精度需求的飞行预警需求。
Flight safety early warning method and system based on global grid
一种基于全球网格的飞行安全预警方法及系统
2023-09-22
Patent
Electronic Resource
Chinese
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