A three-dimensional wind field measurement system suitable for unmanned aerial vehicles and its application method

Abstract

The present invention discloses a three-dimensional wind field measurement system applicable to an unmanned aerial vehicle and a use method of the three-dimensional wind field measurement system. The three-dimensional wind field measurement system comprises a data acquisition device and a control system; the data acquisition device comprises a plurality of wind speed measuring devices and a wind speed acquisition support; each wind speed measuring device includes wind speed sensors and a wind speed sensor fixing mechanism; the wind speed acquisition support includes a base main body, upright columns and a top cover; the base main body includes an upper-layer base and a lower-layer base; the top surface of the upper-layer base is provided with the plurality of upright columns which are distributed circumferentially; the upright columns are provided with the wind speed measuring devices; the lower-layer base is provided with a rotation driving device for driving the upper-layer base to rotate; and the top surface of the upper-layer base and the bottom surface of the top cover are both provided with the wind speed measuring devices. With the three-dimensional wind field measurement system of the invention adopted, the measurement of a three-dimensional space wind field at a specific area around the unmanned aerial vehicle can be realized. The three-dimensional wind field measurement system has the advantages of simple structure, convenient operation, easiness in arrangement and high applicability.

Description

Technical field [0001] The invention relates to the field of UAV weather monitoring equipment, in particular to a three-dimensional wind field measurement system suitable for UAVs and a use method thereof. Background technique [0002] UAVs are simple in structure and low in cost, and are now widely used in agricultural applications such as pesticide spraying and pollination. Although drones are flexible and maneuverable, they have incomparable advantages over traditional agricultural machinery. However, because the height of agricultural drones is generally 3-10 meters away from the crop canopy, the rotor wind field will inevitably directly affect the field crops. On the canopy, the coverage width of the wind field, the size of the wind speed in each direction in the wind field, and the distribution of the wind field will directly affect the field operation effect of agricultural UAVs. The research of aerodynamics is of great significance for experimental guidance. . [0003] Fo...

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Problems solved by technology

The "multi-directional wind speed measurement device" disclosed in the invention patent with the authorized notification number CN103076462B can measure the wind speed in multiple directions at a specific point within the wind field range, but it cannot realize the three-dimensional wind field measurement of a specific area

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