High-temporal-spatial-resolution wind measurement system and method based on multi-rotor unmanned aerial vehicle

Abstract

The invention discloses a high-temporal-spatial-resolution wind measurement system and method based on a multi-rotor unmanned aerial vehicle. The system comprises a pressure sensing unit which is usedfor obtaining the wind pressure information in different directions, a flight attitude collection unit which used for obtaining the attitude information of the multi-rotor unmanned aerial vehicle, adata processing unit used for receiving the wind pressure information and the attitude information and calculating the wind speed and the wind direction, and a multi-rotor unmanned aerial vehicle usedas a carrier platform. The multi-rotor unmanned aerial vehicle is used as a wind measurement carrier, and is small in size, easy to deploy, convenient and efficient; when the wind pressure is detected through the pressure sensing unit, the attitude information of the unmanned aerial vehicle in the detection process is collected through the flight attitude collection unit, a wind measurement algorithm is provided according to the attitude information, the wind measurement algorithm is operated through the data processing unit, the influence of the flight attitude on the wind speed and the winddirection can be corrected, and the wind measurement precision is greatly improved.

Description

technical field [0001] The invention relates to the technical field of meteorological monitoring, in particular to a wind measuring system and a wind measuring method with high temporal and spatial resolution based on a multi-rotor unmanned aerial vehicle. Background technique [0002] Wind is a basic natural phenomenon caused by air flow. It is closely related to human production and life. Therefore, wind speed and wind direction have been important factors in meteorological monitoring since ancient times. With the development of society, people in many industries need to understand the characteristics of wind in more detail, so wind measuring devices are required to measure wind more flexibly and accurately. [0003] However, traditional wind measurement equipment is difficult to meet the dual requirements of flexibility and accuracy in the process of wind measurement. For example, the wind cup type, heat dissipation type, and ultrasonic wind measuring instrument, althoug...

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Problems solved by technology

[0003] However, traditional wind measurement equipment is difficult to meet the dual requirements of flexibility and accuracy in the process of wind measurement

For example, the wind cup type, heat dissipation type, and ultrasonic wind measuring instrument, although the accuracy is high, but the position is fixed, not flexible enough, and can only achieve single-point wind measurement; while the existing wind measuring radar is more flexible, but the height of the wind measurement It is also limited to 50m-100m, and the wind measurement accuracy is generally low

For example, the utility model patent with the authorized announcement number CN 209159994 U discloses "a wind measuring device based on a multi-rotor UAV platform". It is convenient, but in order to maintain a balanced hovering posture in the wind, the UAV will not be in a completely horizontal state, and will have a certain tilt angle. The structure and algorithm of the wind measurement device given in this patent do not consider Due to the existence of this point, it is impossible to overcome the influence of the tilt angle on the wind speed and wind pressure, resulting in the final wind speed and wind direction values ​​are still not accurate enough

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