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Unmanned aerial vehicle magnetic interference calibration method and distributed magnetic anomaly detection system

A calibration method and UAV technology, applied in the field of magnetic detection, can solve the problems of low magnetic interference calibration accuracy, complex operation, high operational risk, etc., and achieve the effects of reducing flight risk, simple operation, and improving accuracy

Active Publication Date: 2020-06-02
BEIJING AUTOMATION CONTROL EQUIP INST
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Problems solved by technology

[0005] The invention provides a UAV magnetic interference calibration method and a distributed magnetic anomaly detection system, which can solve the technical problems of the UAV magnetic interference calibration method in the prior art with complicated operation, high operational risk and low magnetic interference calibration accuracy

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  • Unmanned aerial vehicle magnetic interference calibration method and distributed magnetic anomaly detection system
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  • Unmanned aerial vehicle magnetic interference calibration method and distributed magnetic anomaly detection system

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[0021] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. 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. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit t...

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Abstract

The invention provides an unmanned aerial vehicle magnetic interference calibration method and a distributed magnetic anomaly detection system. The method comprises the steps of horizontally placing an unmanned aerial vehicle on the ground, measuring a geomagnetic field vector, and installing a first magnetometer on the ground; installing a second magnetometer; clockwise rotating the unmanned aerial vehicle by taking the first magnetometer as a rotation center, and sequentially measuring the first magnetic field difference values in eight directions and a first included angle between the geomagnetic field vector and a coordinate axis of the unmanned aerial vehicle; overturning the unmanned aerial vehicle 180 degrees along the horizontal symmetry axis and then placing the unmanned aerial vehicle on the ground, and installing a third magnetometer on the ground; clockwise rotating the unmanned aerial vehicle by taking a third magnetometer as a rotation center, and sequentially the measuring second magnetic field difference values in eight directions and an second included angle between the geomagnetic field vector and the coordinate axis of the unmanned aerial vehicle; and calculatinga magnetic interference coefficient of the unmanned aerial vehicle to complete the magnetic interference calibration of the unmanned aerial vehicle. By applying the technical scheme, the technical problems that in the prior art, an unmanned aerial vehicle magnetic interference calibration method is complex in operation, larger in operation risk and low in magnetic interference calibration precision, can be solved.

Description

technical field [0001] The invention relates to the technical field of magnetic detection, in particular to a method for calibrating magnetic interference of an unmanned aerial vehicle and a distributed magnetic anomaly detection system. Background technique [0002] The geomagnetic field generally changes regularly and slowly with time and space. When there is a magnetic substance, the magnetic field of the magnetic substance itself and the induced magnetic field generated by the magnetic substance itself under the geomagnetic field will be superimposed on the geomagnetic field. Make the earth's magnetic field abnormal in a certain area. There are a large number of metal minerals in the land and sea of ​​the earth. Underwater military equipment such as submarines and mines are mainly composed of metal materials, and the magnetic substances in them will cause abnormalities in the surrounding geomagnetic field. The magnetic anomaly detection system realizes the detection and...

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Application Information

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IPC IPC(8): G01R33/02G01R33/10G01V3/40
CPCG01R33/02G01R33/10G01V3/40
Inventor 秦杰王同雷王春娥万双爱魏克全
Owner BEIJING AUTOMATION CONTROL EQUIP INST
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