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Over-the-horizon operation unmanned aerial vehicle fault emergency landing method

A technology of unmanned aerial vehicles and over-the-horizon, which is applied in the direction of non-electric variable control, instruments, control/regulation systems, etc., can solve the problems of not providing emergency landing methods for unmanned aerial vehicles, and no effective emergency landing plans, etc., to achieve The effect of reducing blanking time and reducing energy consumption

Inactive Publication Date: 2021-09-03
广西翼界科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this program does not provide an emergency landing method for UAVs, and there are no other effective emergency landing programs

Method used

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  • Over-the-horizon operation unmanned aerial vehicle fault emergency landing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: Fault emergency landing of multi-rotor UAV

[0024] For multi-rotor UAVs equipped with flight control systems during flight operations, insufficient power, loss of positioning signals, and interruption of communication with the ground are common UAV failures. The following steps are executed autonomously by the flight control system:

[0025] S1, the UAV slows down and enters the hovering state, and enters S2 after hovering for 30s;

[0026] S2, the flight control system judges the fault again, if the fault disappears, the multi-rotor UAV continues to perform flight operations; if the fault does not disappear, enter S3;

[0027] S3, the multi-rotor UAV descends rapidly at a speed of 5m / s;

[0028] S4, when the ultrasonic altitude determination module installed on the lower part of the UAV senses that the UAV is lowered to a height of 3m from the ground, enter the hovering state to maintain the height;

[0029] S5, after hovering at a fixed height for 20...

Embodiment 2

[0030] Embodiment 2: Fault emergency landing of compound wing UAV

[0031] Compound-wing UAV is a type of UAV that combines the structure of fixed-wing UAV and multi-rotor UAV. The fixed-wing mode realizes level flight at a certain speed. Similar to aircraft, it can hover or take off and land vertically.

[0032] The compound-wing UAV equipped with flight control system in over-the-horizon flight operations will execute an emergency landing procedure after the flight control system judges that there is a failure. The landing process is controlled and executed independently by the flight control system according to the following steps:

[0033] S1, the composite wing UAV slows down and switches to the multi-rotor mode to fly, enters the hovering state, and enters S2 after hovering for 30s;

[0034] S2, the flight control system judges the fault again, if the fault disappears, continue the flight operation; if the fault does not disappear, enter S3;

[0035] S3, the composite ...

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Abstract

The invention discloses a beyond-visual-range operation unmanned aerial vehicle fault emergency landing method, and belongs to the technical field of unmanned aerial vehicle flight control. The beyond-visual-range operation unmanned aerial vehicle fault emergency landing method comprises the steps that after the unmanned aerial vehicle judges that a fault occurs, an emergency landing program is executed, the landing process is autonomously executed according to steps, and the unmanned aerial vehicle slows down and enters a hovering state; fault judgment is conducted again, and if the fault does not disappear, the unmanned aerial vehicle starts to descend; the unmanned aerial vehicle enters a fixed-height hovering state when descending to be close to the ground, slowly lands on the ground after hovering for a short time, and cuts off power supply.

Description

technical field [0001] The invention discloses an emergency landing method for a faulty unmanned aerial vehicle operating beyond visual range, and belongs to the technical field of unmanned aerial vehicle flight control. Background technique [0002] UAVs have the advantages of long-distance and low-altitude operations, and are widely used in security, emergency rescue, environmental inspection and other fields. With the development of flight control technology, UAVs can achieve autonomous flight operations beyond visual range. [0003] Due to the increasing complexity of the control system and the complexity of flight scenarios and tasks, various failures may occur during the operation of UAVs, such as insufficient power, loss of positioning signals, and interruption of communication with the ground. The failure leads to a reduction in the flight stability of the drone, and once a high-altitude fall occurs, it may lead to serious consequences. Especially when UAVs are ope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/10
CPCG05D1/101
Inventor 潘能乾
Owner 广西翼界科技有限公司
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