UAV magnetic interference calibration method and distributed magnetic anomaly detection system
A calibration method and unmanned aerial vehicle technology, applied in the field of magnetic detection, can solve problems such as high operational risk, low magnetic interference calibration accuracy, and complicated operation, and achieve the effect of reducing flight risk, reducing error, and simple operation
Active Publication Date: 2022-01-11
BEIJING AUTOMATION CONTROL EQUIP INST
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[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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[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 any limitation of 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 t...
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The invention provides a method for calibrating magnetic interference of UAV and a distributed magnetic anomaly detection system. The method includes: placing the UAV horizontally on the ground, measuring the geomagnetic field vector, installing the first magnetometer on the ground; installing the second Two magnetometers; with the first magnetometer as the center of rotation, rotate the drone clockwise and sequentially measure the first magnetic field difference value in 8 directions and the first angle between the geomagnetic field vector and the coordinate axis of the drone; Flip the drone 180° along the horizontal axis of symmetry and place it on the ground, install the third magnetometer on the ground; take the third magnetometer as the rotation center, rotate the drone clockwise and measure the second magnetometer in 8 directions in sequence. The magnetic field difference value and the second angle between the geomagnetic field vector and the UAV coordinate axis; calculate the UAV magnetic interference coefficient to complete the UAV magnetic interference calibration. Applying the technical solution of the present invention can solve the technical problems in the prior art that the unmanned aerial vehicle magnetic interference calibration method is complicated to operate, the operation risk is relatively high, and the accuracy of magnetic interference calibration is low.
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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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
OwnerBEIJING AUTOMATION CONTROL EQUIP INST