A magnetometer calibration data acquisition method, device and aircraft

A technology for calibrating data and collection methods, applied in measurement devices, instruments, etc., to solve problems such as being easily affected by the environment and deviating from the course

Active Publication Date: 2021-08-17
SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The magnetometer measures the geomagnetic field data, and the sampling data given by it is easily affected by the environment, so its given initial value often deviates from the true heading

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  • A magnetometer calibration data acquisition method, device and aircraft
  • A magnetometer calibration data acquisition method, device and aircraft
  • A magnetometer calibration data acquisition method, device and aircraft

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Embodiment Construction

[0054] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0055] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover a non-exclusive inclusion, fo...

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Abstract

The invention discloses a magnetometer calibration data acquisition method, device and aircraft, wherein the magnetometer calibration data acquisition method is applied to an aircraft, and the method includes: acquiring an attitude parameter of the aircraft, wherein the attitude parameter is used To characterize the current attitude of the fuselage of the aircraft; judge whether the current attitude of the fuselage is a preset attitude according to the attitude parameters; if the current attitude of the fuselage is the preset attitude, then according to the sampling instruction and the acceleration of the aircraft to control the magnetometer to perform data collection to obtain multiple sets of magnetic data, wherein the sampling instruction is an instruction sent by a terminal device communicatively connected with the aircraft to enable the magnetometer to perform data collection ; calculating whether the acquired magnetic data sets exceed a preset set threshold; if the acquired magnetic data sets exceed the set threshold, outputting the multiple sets of magnetic data.

Description

technical field [0001] The invention relates to the technical field of magnetic force calibration, in particular to a magnetometer calibration data acquisition method, device and aircraft. Background technique [0002] The heading control of the aircraft is directly related to the flight stability and flight safety of the aircraft. Usually, the heading of the aircraft is obtained through fusion of data from various sensors. Among the three channel attitudes of the aircraft roll angle, pitch angle, and yaw angle, the yaw angle is also called the heading angle. The initial value is given by the magnetometer, and other sensors perform post-correction on it to finally obtain the fused heading angle. The magnetometer measures the data of the earth's magnetic field, and the sampling data given by it is easily affected by the environment, so its given initial value often deviates from the true heading. [0003] As the aircraft flies, other sensor parameters are fused with the hea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C25/00
CPCG01C25/00
Inventor 李颖杰
Owner SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD
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