A Quantitative Evaluation and Testing System of Rotor UAV Position Anti-airflow Interference Capability

Abstract

The invention relates to a quantitative evaluation and testing system for the position anti-airflow interference ability of a rotor UAV, including an airflow interference generation system, an airflow interference simulation platform, and a UAV anti-airflow interference experimental platform; The simulation model and the airflow disturbance module are generated, and the simulation software is used to conduct accurate simulation analysis of the airflow disturbance effect on the UAV. After the simulation test is correct, the experimental wind field simulation equipment is used to construct the UAV airflow disturbance flight environment, and the actual Airflow disturbance environment flight test; the test platform of the present invention can accurately quantify the size of the airflow disturbance suffered by the UAV, accurately describe and evaluate the boundary of the anti-airflow interference capability of the UAV position, and carry out integrated design and verification of the anti-jamming control of the UAV position The effectiveness and engineering practicability of the system are proved, and it is suitable for the simulation analysis, quantitative evaluation test and actual flight verification test of the drone's anti-airflow interference in the aerospace field.

Description

technical field [0001] The invention relates to a quantitative evaluation and testing system for the position anti-airflow interference capability of a rotor UAV, and belongs to the field of integrated design of the anti-airflow interference control for the position of the UAV. Background technique [0002] During the flight of the UAV, it will be affected by ground effect disturbance, local wind changes and other factors, resulting in airflow disturbance in the flying area of ​​the UAV, and these airflow disturbances will change the force effect of the UAV propeller, the UAV blade The pressure difference between the upper and lower airflow, the disordered and unbalanced force of the UAV, and the increase in the measurement error of the barometer have a serious impact on the flight process of the UAV. In very serious cases, it may even cause the UAV to overturn and crash. [0003] The serious impact of airflow disturbance on the flight of UAV must be solved through appropria...

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Problems solved by technology

[0002] During the flight of the UAV, it will be affected by ground effect disturbance, local wind changes and other factors, resulting in airflow disturbance in the flying area of ​​the UAV, and these airflow disturbances will change the force effect of the UAV propeller, the UAV blade The pressure difference between the upper and lower airflows and the disordered and unbalanced force of the UAV increase the measurement error of the barometer, which has a serious impact on the flight process of the UAV. In very serious cases, it may even cause the UAV to overturn and crash.

[0003] The serious impact of airflow disturbance on the flight of UAV must be solved through appropriate control methods and strategies. At present, the control of airflow disturbance by UAV is to regard airflow disturbance as a system control error, relying on the attitude and position of the UAV in the control loop. The simple disturbance control of the PID parameters is too simple. After the airflow disturbance exceeds the adjustment range of the PID parameters, the UAV will not be able to adjust the corresponding position and posture in time and cause the aircraft to crash.

At present, there are still some researches on UAV anti-interference, such as the authorized Chinese patent N201810049761.4 "A method and device for anti-wind interference position control of unmanned aircraft", such as the accepted Chinese patent CN202010586242.9 " A multi-rotor UAV PID debugging and anti-interference test device", etc., the above-mentioned control algorithms are designed under the small-scale simple disturbance, the structure of the anti-interference device is relatively simple, the application is relatively limited, and there are very few studies on airflow interference , the existing anti-airflow interference devices are also designed under simple wind disturbance, and cannot accurately and quantitatively evaluate the anti-airflow interference ability of the UAV position and test and analyze the anti-jamming ability of the UAV position.

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