Warning method and device for minimum safe altitude of aerial target

Abstract

The invention discloses a warning method and device for a minimum safe altitude of an aerial target. The warning method comprises the following steps of: judging whether a first altitude difference is larger than a set warning interval height, wherein the first altitude difference is the altitude difference between the height of the current position of the aerial target and the height of a surficial grid where horizontal coordinates of the current position of the aerial target are located; judging wherein a connection line between the current position and an extrapolated warning track point is intersected with a grid cube if the first altitude difference is larger than the warning interval height; and determining whether to give an alarm according to the distance between the current position and an intersection if the intersection exists. As the step of judging whether the aerial target can penetrate through the surficial grid and is intersected with the grid cube within a set time slot is also added in the invention, the phenomenon of incapability of giving the alarm when the aerial target violates the safe altitude during the flight, so that missed alarms can be avoided.

Description

technical field [0001] The invention relates to the general aviation communication technology, in particular to the technology of warning the minimum safe altitude of air targets. Background technique [0002] In recent years, general aviation has developed rapidly. Business flight, commercial flight, air tour, and private driver's license training are being favored by more and more people, and there is a large enough market demand. General purpose aircraft already plays a very important role in the country's economy. [0003] With the continuous development of the air transportation industry and the reform of low-altitude airspace management, low-altitude airspace resources have become hot resources for military flights, civil transport flights, and general aviation flights. In order to ensure the flight safety of air targets and take full advantage of low-altitude airspace resources, the flight control department monitors air targets in low-altitude airspace and implemen...

AI Technical Summary

Problems solved by technology

[0010] However, from figure 1 It can be seen from the figure that when the air target passes the junction of the surface grid A and the surface grid B during the climbing process, the position height of the air target will be smaller than the height of the surface grid B. However, the flight control department But there is no warning in advance, which will bring great security risks to the flight of air targets

[0011] To sum up, the minimum safe altitude warning method in the prior art may appear that the air target violates the safe altitude when flying without generating an alarm, resulting in a missed alarm, which makes the flight of the air target a safety hazard

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