Techniques for controlling tonal noise generated by an unmanned aerial vehicle (UAV) include utilizing a plurality of rotor units mounted on the UAV to generate thrust to propel the UAV to fly. And each rotor wing unit comprises a blade type rotor wing. The rotational speed or phase delay of at least one rotor unit relative to the other rotor unit is adjusted. This adjustment results in diffusion of tonal noise generated by the rotor unit.

    控制由无人机(UAV)产生的音调噪声的技术包括利用安装在UAV上的多个旋翼单元产生推力以推动UAV飞行。每个旋翼单元包括叶片式旋翼。调节至少一个旋翼单元相对于另一个旋翼单元的转速或相位延迟。该调节导致由旋翼单元产生的音调噪声的扩散。


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    Title :

    Multi-rotor tonal noise control for drones


    Additional title:

    无人机的多旋翼音调噪声控制


    Contributors:

    Publication date :

    2023-10-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64U / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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