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A long-term voyage tracking method for a moving target of an unmanned aerial vehicle

A technology of moving targets and drones, which is applied in the field of long-term tracking of moving targets by drones. It can solve the problems of low-efficiency flight methods for long-term tracking of moving targets, and achieve the effects of increasing tracking time, saving energy, and saving energy.

Active Publication Date: 2022-03-29
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of the minimum flight speed of fixed-wing UAVs, when tracking moving targets, they often use the method of circling flight with a large radius. This method is an inefficient flight method for long-term tracking of moving targets.

Method used

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  • A long-term voyage tracking method for a moving target of an unmanned aerial vehicle
  • A long-term voyage tracking method for a moving target of an unmanned aerial vehicle
  • A long-term voyage tracking method for a moving target of an unmanned aerial vehicle

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Embodiment 1

[0061] Aiming at a specific example of unmanned aerial vehicles, the tracking method of the present invention is further described.

[0062] The weight of the drone is W = 800 kg, wing area S =9.5 square meters, zero-lift drag coefficient C D0 =0.018, induced resistance factor k = 0.08, the air density is taken as ρ =1.023, the maximum overload allowed under safe flight conditions n =3.0. The effective tracking radius of the UAV is R =5000m, the maximum tilt angle of the UAV mu =45°, the drone is allowed to fly at an altitude of 200m-4200m, that is h 0 =200m, h 1 =4000m, the speed of a moving transport ship on the sea is 50 km / h .

[0063] When the UAV is gliding with the minimum glide rate, it can be calculated according to the above formula: glide rate , corresponding to the flight speed , the UAV glides and circles at the corresponding speed ; then the total time the UAV is allowed to glide is , the time interval between the UAV and the moving tar...

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Abstract

The invention relates to a long-term voyage tracking method for a moving target of an unmanned aerial vehicle, comprising the following steps: setting the effective tracking radius of the unmanned aerial vehicle R ;Real-time monitoring of the movement status of the tracking target. When the tracking target is in a non-uniform linear motion, the drone is pulled up to the maximum cruise height in the air to effectively track the radius R For the flight trajectory, maintain the same altitude hovering around the target. When the tracking target is in a uniform linear motion, the drone enters the long-term tracking mode; in the long-term tracking mode, the drone alternately performs unpowered gliding and powered climbing. The long voyage tracking method of the present invention can save energy consumption as much as possible while meeting the effective tracking target at all times.

Description

technical field [0001] The invention relates to a method for tracking a moving target of an aircraft, in particular to a method for long-term tracking of a moving target of an unmanned aerial vehicle. Background technique [0002] UAV is an unmanned aircraft, because of its strong adaptability, it can meet the tasks of many different scenarios. Due to the limitation of the minimum flight speed of fixed-wing UAVs, when tracking a moving target, it often adopts a large-radius circling flight method, which is an inefficient flight method for long-term tracking of a moving target. [0003] Due to the limited energy that can be carried, the current domestic and foreign research on UAV long-term tracking of moving targets mainly focuses on the aerodynamic shape and engine. The research idea is to use more advanced aerodynamic shape and more energy-saving and efficient engines to achieve more long flight. Contents of the invention [0004] The purpose of the present invention i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/10
CPCG05D1/101
Inventor 李道春刘奕良申童邵浩原姚卓尔阚梓赵仕伟罗漳平
Owner BEIHANG UNIV