Method and device for terrain simulation flying of unmanned aerial vehicle and unmanned aerial vehicle

Patent metadata

Field	Value
Publication number	US-10712751-B2
Application number	US-201715753841-A
Country	US
Kind code	B2
Filing date	Jul 31, 2017
Priority date	Aug 3, 2016
Publication date	Jul 14, 2020
Grant date	Jul 14, 2020

Abstract

The embodiment of the disclosure relates to an Unmanned Aerial Vehicle (UAV) terrain simulation flying method and device, and a UAV. The method includes: acquiring a vertical distance between a UAV and the ground; acquiring an oblique distance between the UAV and the ground; acquiring an angle between the vertical distance and the oblique distance; and adjusting a terrain simulation flying state of the UAV according to the angle, the vertical distance and the oblique distance.

First claim

What is claimed is:

1. A method for terrain simulation flying of an Unmanned Aerial Vehicle (UAV), comprising:
acquiring a vertical distance between the UAV and a ground;
acquiring an oblique distance between the UAV and the ground;
acquiring an angle between the vertical distance and the oblique distance; and
a step of adjusting a terrain simulation flying state of the UAV according to the angle, the vertical distance and the oblique distance;
wherein the step of adjusting the terrain simulation flying state of the UAV according to the angle, the vertical distance and the oblique distance comprises:
calculating one or more items of judgment data by using the angle and the vertical distance;
composing one or more judgment data ranges by the one or more items of judgment data; and
a step of adjusting the terrain simulation flying state of the UAV according to one of the judgment data ranges within which the oblique distance falls.

2. The method as claimed in claim 1 , wherein the judgment data ranges comprise a first judgment data range, and the step of adjusting the terrain simulation flying state of the UAV according to a judgment data range within which the oblique distance falls comprises:
in a case that the oblique distance falls within the first judgment data range, maintaining a terrain simulation flying speed of the UAV, and adjusting a terrain simulation flying height of the UAV according to the vertical distance.

3. The method as claimed in claim 2 , wherein the judgment data ranges comprise a second judgment data range, and the step of adjusting the terrain simulation flying state of the UAV according to the judgment data range within which the oblique distance falls comprises:
in a case that the oblique distance always falls within the second judgment data range within a first schedule time, decreasing the terrain simulation flying speed of the UAV, and raising the terrain simulation flying height of the UAV; and
in a case that the oblique distance is switched to falling within the first judgment data range from the second judgment data range after the oblique distance falls within the second judgment data range within a second schedule time, maintaining the terrain simulation flying speed of the UAV, and adjusting the terrain simulation flying height of the UAV according to the vertical distance, the second schedule time is smaller than the first schedule time.

4. The method as claimed in claim 3 , wherein the judgment data ranges comprise a third judgment data range, and the step of adjusting the terrain simulation flying state of the UAV according to the judgment data range within which the oblique distance falls comprises:
in a case that the oblique distance falls within the third judgment data range, making the UAV hover, and raising the terrain simulation flying height of the UAV; and
in a case that falling of the oblique distance within the third judgment data range is switched into falling into the second judgment data range, recovering the terrain simulation flying speed of the UAV, and controlling the terrain simulation flying height of the UAV according to the vertical distance.

5. The method as claimed in claim 2 , wherein the judgment data ranges comprise a fourth judgment data range, and the step of adjusting the terrain simulation flying state of the UAV according to the judgment data range within which the oblique distance falls comprises:
in a case that the oblique distance always falls within the fourth judgment data range within a third schedule time, decreasing the terrain simulation flying speed of the UAV, and reducing the terrain simulation flying height of the UAV; and
in a case that falling within the fourth judgment data range is switched to falling within the first judgment data range after the oblique distance falls within the fourth judgment data range within a fourth schedule time, maintaining the terrain simulation flying speed of the UAV, and adjusting the terrain simulation flying height of the UAV according to the vertical distance, the fourth schedule time is smaller than the third schedule time.

6. The method as claimed in claim 1 , wherein the judgment data ranges comprise a fifth judgment data range, and a step of adjusting the terrain simulation flying state of the UAV according to the judgment data range within which the oblique distance falls comprises:
in a case that the oblique distance falls within the fifth judgment data range, making the UAV hover, or controlling the UAV to return.

7. A device for terrain simulation flying of an Unmanned Aerial Vehicle (UAV), the device has a hardware processor configured to execute program instructions stored on a memory, the program instructions comprise:
acquiring a vertical distance between the UAV and a ground;
acquiring an oblique distance between the UAV and the ground;
acquiring an angle between the vertical distance and the oblique distance; and
a step of adjusting a terrain simulation flying state of the UAV according to the angle, the vertical distance and the oblique distance;
wherein the step of adjusting the terrain simulation flying state of the UAV according to the angle, the vertical distance and the oblique distance comprises:
calculating one or more items of judgment data by using the angle and the vertical distance;
composing one or more judgment data ranges by the one or more items of judgment data; and
a step of adjusting the terrain simulation flying state of the UAV according to one of the judgment data ranges within which the oblique distance falls.

8. The device as claimed in claim 7 , wherein the judgment data ranges comprise a first judgment data range, and the step of adjusting the terrain simulation flying state of the UAV according to a judgment data range within which the oblique distance falls comprises:
in a case that the oblique distance falls within the first judgment data range, maintaining a terrain simulation flying speed of the UAV, and adjusting a terrain simulation flying height of the UAV according to the vertical distance.

9. The device as claimed in claim 8 , wherein the judgment data ranges comprise a second judgment data range, and the step of adjusting the terrain simulation flying state of the UAV according to the judgment data range within which the oblique distance falls comprises:
in a case that the oblique distance is switched to falling within the first judgment data range from the second judgment data range after the oblique distance falls within the second judgment data range within a second schedule time, maintaining the terrain simulation flying speed of the UAV, and adjusting the terrain simulation flying height of the UAV according to the vertical distance, the second schedule time is smaller than the first schedule time.

10. The device as claimed in claim 9 , wherein the judgment data ranges comprise a third judgment data range, and the step of adjusting the terrain simulation flying state of the UAV according to the judgment data range within which the oblique distance falls comprises:
in a case that the oblique distance falls within the third judgment data range, making the UAV hover, and raising the terrain simulation flying height of the UAV; and
in a case that falling of the oblique distance within the third judgment data range is switched into falling into the second judgment data range, recovering the terrain simulation flying speed of the UAV, and controlling the terrain simulation flying height of the UAV according to the vertical distance.

11. The device as claimed in claim 9 , wherein the judgment data ranges comprise a fourth judgment data range, and the step of adjusting the terrain simulation flying st

Assignees

• Guangzhou Xaircraft Tech Co Ltd

Inventors

• Chen Yousheng

Classifications

• B64U2201/10

  autonomous, i.e. by navigating independently from ground or air stations, e.g. by using inertial navigation systems [INS] · CPC title

• B64U2101/00

  UAVs specially adapted for particular uses or applications · CPC title

• B64U2201/00

  UAVs characterised by their flight controls · CPC title

• G05D1/101 Primary

  specially adapted for aircraft · CPC title

• G05D1/0646 Primary

  to follow the profile of undulating ground · CPC title