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Unmanned plane speed measurement method and device, and unmanned plane

A measurement method, a technology of unmanned aerial vehicle, applied in the direction of measurement device, speed measurement using acceleration, speed/acceleration/shock measurement, etc., can solve problems such as accelerometer error that cannot obtain speed information

Active Publication Date: 2017-02-22
ZEROTECH (SHENZHEN) INTELLIGENCE ROBOT CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention proposes a UAV speed measurement method, device and UAV to solve the problem that the existing UAV cannot obtain an effective speed information to correct the UAV when the GPS signal disappears or has a large error The problem of the error caused by the accelerometer

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  • Unmanned plane speed measurement method and device, and unmanned plane
  • Unmanned plane speed measurement method and device, and unmanned plane
  • Unmanned plane speed measurement method and device, and unmanned plane

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] Those skilled in the art know that the embodiments of the present invention can be implemented as a system, device, device, method or computer program product. Therefore, the present disclosure may be embodied in the form of complete hardware, complete software (including firmware, resident software, microcode, etc.), or a combination of hardware and software.

[0020] The principle and spirit of the present invention will be explained in detail below w...

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Abstract

The embodiment of the invention relates to the field of unmanned planes, and provides an unmanned plane speed measurement method and device, and an unmanned plane. The method comprises the steps: obtaining a first group of distances of a plurality of laser beams of a laser radar of the unmanned plane on a plurality of planes at a first position and a first moment; obtaining a second group of distances of the plurality of laser beams on the plurality of planes at a second position and a second moment; processing the first and second groups of distances according to a preset geometric relation, and obtaining the coordinates of the first and second positions of the unmanned plane in the same coordinate system; and determining the movement speed information of the unmanned plane according to the coordinates of the first and second positions in the same coordinate system and the time difference between the first and second moments. The method can carry out the detection of the speed through employing a signal of an airborne laser radar, and can correct the speed obtained by an IMU through employing a detected speed, so as to achieve the hovering of the unmanned plane.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicles, in particular to a method and device for measuring the speed of an unmanned aerial vehicle and an unmanned aerial vehicle. Background technique [0002] This section is intended to provide a background or context for implementations of the invention that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] Traditional UAVs use the three-dimensional acceleration data measured by the Inertial Measurement Unit (IMU), the three-axis angular velocity data, and the heading data measured by the magnetic compass to process and analyze, and perform attitude control processing; the UAV control system also refers to The latitude and longitude data, altitude data, and speed data are measured by the satellite signal, and the flight position is calculated and corrected. [0004] Since the accelerometer in the inertial measurement un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P7/00G01P3/68G01S17/58
Inventor 孙孟孟李萌坚俞伟斌周炯杨建军
Owner ZEROTECH (SHENZHEN) INTELLIGENCE ROBOT CO LTD
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