A UAV heading calculation method and system against airframe magnetic interference
A drone, magnetic interference technology, applied in the field of electronic information
Active Publication Date: 2021-07-30
北京微克智飞科技有限公司
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[0005] In view of this, the present invention provides a method and system for calculating the UAV heading against the magnetic interference of the body, which can model and compensate the magnetic interference caused by electronic and electrical equipment during the take-off phase of the UAV, and effectively overcome the UAV’s The problem that the magnetic interference of its own electronic and electrical system affects the magnetic heading calculation of the UAV is conducive to improving the stability and reliability of the UAV heading calculation
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[0052] like image 3 In the graph shown, the drone is in the ground stationary stage, and the head is 0 °; the head is 0 °; 69-75 calendar is the drone decision phase, the head points to No change, magnetic strength gauge is affected by magnetic interference, magnetic angular decision error increases, with the vertical speed to form a magnetic interference correction deviation amount; 75-85 sequence is the implementation of magnetic interference deviation quantities compensation stages, magnetic direction Decompose converge to the initial value.
[0053] The present invention has the advantage of using the drone to relatively unchanged at the environmental magnetic field of the takeoff location, and the inner constraint relationship between the magnetic interference between the self-electron electrical system in different motion states, proposes an anti-body Magnetic interference UAV fake method, this method is built by recording the output value of magnetometer before and after de...
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The invention discloses a method and system for calculating the course of an unmanned aerial vehicle that resists body magnetic interference, and uses an INS / GNSS integrated navigation system, an attitude and course reference system, and a magnetometer ellipse correction method or an ellipsoid correction method for magnetometer Output offset compensation and magnetometer calibration. It realizes the isolation of the magnetic interference generated by the UAV's own electronic and electrical system when it takes off, so that the magnetic interference does not affect the magnetic heading calculation, and effectively overcomes the impact of the magnetic interference generated by the UAV's own electronic and electrical system on the UAV's magnetic heading. Solve the problem of influence, so as to improve the stability and reliability of UAV heading calculation.
Description
Technical field [0001] The present invention relates to the field of electronic information technology, and more particularly to an anti-machine aerobic solution method and system of an anti-organ magnetic interference. Background technique [0002] The drone has become an important part of the intelligent manufacturing field. Many developed countries and emerging industries, such as Europe, America, Japan, etc., as the development focus. With the advancement of China's manufacturing 2025 and artificial intelligent national strategic plan, drone has developed to artificial intelligence, and its intelligent autonomous system and application have become a major scientific and technical issue in my country's social development. UAV intelligent needs to experience three development phases of single-machine intelligence, multi-machine collaborative intelligence and task independent intelligence, and single intelligence is the foundation. [0003] Realizing UAV autonomous navigation po...
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IPC IPC(8): G01C21/20
CPCG01C21/20
Inventor 胡盼伟李少斌
Owner 北京微克智飞科技有限公司