Low-altitude flight simulation method for airborne geophysical prospecting of unmanned aerial vehicle

Abstract

The invention discloses a low-altitude flight simulation method for airborne geophysical prospecting of an unmanned aerial vehicle. A laser radar mounting flight is introduced to before-flight simulation, accuracy DSM (digital surface model) data of a work zone are acquired, and more-complete altitude data are provided for low-altitude flight simulation. The low-altitude flight simulation method is capable of accurately simulating various postures of low-altitude flight of the unmanned aerial vehicle on planned flight paths and evaluating whether ground barriers (signal towers, telegraph poles, tall trees, buildings, high-rise buildings and bridges and the like) in the flight paths of the unmanned aerial vehicle damage flight safety of the unmanned aerial vehicle or not, flight altitude over the ground during low-altitude flight of the unmanned aerial vehicle is visually analyzed from simulation results, safety of the ultralow-altitude flight of the unmanned aerial vehicle in the flight paths is judged, modification of the prior art is reduced, operation efficiency is improved, flight safety of the unmanned aerial vehicle is guaranteed, mountain collision during flight of the unmanned aerial vehicle is avoided, and airborne geophysical prospecting of the unmanned aerial vehicle is effectively assisted.

Description

technical field [0001] The invention relates to a low-altitude flight simulation method, in particular to a low-altitude flight simulation method applied to aerial geophysical exploration of unmanned aerial vehicles, and belongs to the field of aerial geophysical exploration of unmanned aerial vehicles. Background technique [0002] At present, airborne geophysical prospecting (airborne geophysical prospecting, is a kind of geophysical prospecting method. It is a method of studying and searching for underground geological structures and minerals by detecting changes in various geophysical fields during navigation through special geophysical prospecting instruments equipped on aircraft. A geophysical prospecting method.) With manned aircraft as the main carrier, problems are becoming increasingly prominent while achieving gratifying results, and unmanned aerial vehicle has become an effective way to solve related problems to a large extent. First, there is a high risk of mann...

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Problems solved by technology

[0003] However, the biggest difficulty in applying UAVs to the field of aeronautical geophysical prospecting is that the UAV flight platform needs to be able to fly along the terrain at ultra-low altitude, and the UAV needs to be able to better track the terrain and fly stably.

During the low-altitude undulating flight of the UAV along the terrain, due to the flight characteristics of the aircraft itself, the characteristics of the climbing ability, and the unpredictability of unknown obstacles, for mountainous terrain with large slopes, hilly terrain with large fluctuations, or relatively large High ground obstacles and hills, there is a risk that the drone will collide with them, causing drone flight accidents

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