Calibration system and method for unmanned aerial vehicle semi-closed-loop control plane

Abstract

The invention provides a calibration system and method for an unmanned aerial vehicle semi-closed-loop control plane. The system comprises a ground control device, a clamp and a calibration box, wherein the calibration box further comprises an MEMS inertial navigation system, a processor module and a wireless communication module; the ground control device is connected with an unmanned aerial vehicle through a cable, a control command is sent to the unmanned aerial vehicle, and the unmanned aerial vehicle control plane is controlled to swing up and down; the calibration box is clamped to the rear edge of the wing surface of the unmanned aerial vehicle through the clamp and moves along with the wing surface; the MEMS inertial navigation system is used for measuring the rotation angle of thewing surface; the processor module is used for converting the wing surface rotation angle information measured by the MEMS inertial navigation system into a quaternion, and the wing surface rotationangle information is provided for the ground control device through the wireless communication module so as to calibrate the unmanned aerial vehicle semi-closed-loop control plane. The system has no requirement for the fixing position of the system relative to the control plane, so that the application range is wide, and the operability is high; the control plane angular position and control planerotating shaft factors are separated, so that calibration of the control plane rotating motion is relatively convenient.

Description

technical field [0001] The invention relates to a calibration system and a calibration method for a semi-closed-loop rudder surface of an unmanned aerial vehicle, and relates to the field of aviation support equipment. Background technique [0002] At present, for medium and large-sized fixed-wing UAVs, semi-closed-loop rudder surfaces are mostly used. Due to the lack of full-closed-loop measurement methods, the calibration of the semi-closed-loop rudder surfaces is mostly externally assisted calibration and evaluation. [0003] For example, angle measurement is often converted into linear measurement such as measuring chord length. The price of this is that there are errors in the measurement of large angles and small angles, or the measurement accuracy cannot be kept consistent; [0004] Among the auxiliary equipment for this work by relevant measurement means, most of them are in the form of cables for communication and are manually arranged, which makes on-site implement...

AI Technical Summary

Problems solved by technology

[0003] For example, angle measurement is often converted into linear measurement such as measuring chord length. The price of this is that there are errors in the measurement of large angles and small angles, or the measurement accuracy cannot be kept consistent;

[0004] Relevant measurement methods Among the auxiliary equipment for this work, most of them communicate in the form of cables and are manually arranged, which makes it inconvenient to implement on site. If there are many rudder surfaces, it will be more cumbersome, time-consuming and laborious

[0005] At present, when measuring the angle, the sensor has strict requirements on the installation and fixing of the rudder surface. A slight deviation will seriously affect the measurement accuracy, which brings a certain degree of difficulty to the angle measurement, and the process is relatively time-consuming and labor-intensive.

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