Unmanned aerial vehicle motor driving randomization and feedback for noise abatement
    63.
    发明授权
    Unmanned aerial vehicle motor driving randomization and feedback for noise abatement 有权
    无人机驾驶随机化和反馈消除噪音

    公开(公告)号:US09415870B1

    公开(公告)日:2016-08-16

    申请号:US14843635

    申请日:2015-09-02

    Abstract: This disclosure is directed to monitoring a noise signature of an unmanned aerial vehicle (UAV) and varying the speed of the motors of the UAV to reduce unwanted sound (i.e., noise) of the UAV based on the noise signature. The noise signature of the UAV may be measured by an audio sensor of a vibration sensor, and feedback may be provided to the UAV. The UAV may generate noise during flight, which may include a number of noise components such as tonal noise (e.g., a whining noise such as a whistle of a kettle at full boil) and broadband noise (e.g., a complex mixture of sounds of different frequencies, such as the sound of ocean surf). By measuring the noise signature of the UAV, and varying the motor revolutions per minute (RPM) during flight operations, the UAV may reduce tonal components of the UAV noise signature.

    Abstract translation: 本公开涉及监测无人机(UAV)的噪声特征并改变无人机的电动机的速度,以便基于噪声特征减少无人机的不想要的声音(即,噪声)。 UAV的噪声特征可以由振动传感器的音频传感器测量,并且可以向UAV提供反馈。 无人机可能在飞行过程中产生噪音,其中可能包括许多噪音成分,例如音调噪声(例如,一个呜呜声,例如在完全沸腾的水壶口哨)和宽带噪声(例如,不同的声音的复杂混合 频率,如海浪的声音)。 通过测量无人机的噪声特征,并且在飞行操作期间改变电机每分钟转数(RPM),UAV可以减少UAV噪声特征的音调分量。

    Modular air delivery
    65.
    发明授权
    Modular air delivery 有权
    模块化送风

    公开(公告)号:US09348333B1

    公开(公告)日:2016-05-24

    申请号:US14563647

    申请日:2014-12-08

    Abstract: Aspects of modular airborne delivery are described. When a shipping container is provided to an airborne carrier for delivery, the airborne carrier may assess weather across a route for airborne delivery of the shipping container, evaluate an approach to drop the shipping container at a delivery zone, and calculate a remaining amount of time until a target delivery time, for example. The airborne carrier may then select components to assemble a modular unmanned aerial vehicle (UAV) based on those or other factors, and assemble the UAV using the selected components. The modular UAV may then be directed to deliver the shipping container according to instructions from the airborne carrier. According to the concepts described herein, flexibility and other advantages may be achieved using modular UAVs for airborne delivery.

    Abstract translation: 描述模块化机载交付的方面。 当运输集装箱提供给空中运输工具进行运输时,机载运输公司可以评估运输集装箱航空运输路线上的天气,评估运送集装箱在运送区域的方法,并计算剩余的时间量 直到目标交付时间为止。 然后,机载运营商可以基于这些或其他因素选择组件来组装模块化无人驾驶飞行器(UAV),并使用所选择的部件组装UAV。 然后,可以根据来自机载运营商的指示,将模块化UAV引导到运送集装箱。 根据本文描述的概念,可以使用用于机载传送的模块化UAV实现灵活性和其他优点。

    Single blade rotor system for use in a vertical takeoff and landing (VTOL) aircraft
    66.
    发明授权
    Single blade rotor system for use in a vertical takeoff and landing (VTOL) aircraft 有权
    用于垂直起飞和着陆(VTOL)飞机的单叶片转子系统

    公开(公告)号:US09334049B1

    公开(公告)日:2016-05-10

    申请号:US14559529

    申请日:2014-12-03

    Abstract: This disclosure is directed to a single blade propeller and systems, devices, and techniques pertaining to assisting in critical stages of flight (e.g., takeoff, landing, emergency situations, etc.) in vertical takeoff and landing (VTOL) aircraft. The single blade propeller may be incorporated into fixed and rotary wing VTOL aircraft as part of a first propulsion system. The first propulsion system may include one or more single blade propellers driven by electric motors, combustion engines, and/or hybrid engines. Each of the single blade propellers may include a lift-producing blade and a counterweight opposite the lift-producing blade. As each of the single blade propellers spins, it may produce lift in a direction approximately perpendicular to the horizon to effect vertical flight.

    Abstract translation: 本公开涉及一种涉及在垂直起飞和着陆(VTOL)飞机中辅助关键飞行阶段(例如起飞,着陆,紧急情况等)的单个桨叶螺旋桨和系统,装置和技术。 作为第一推进系统的一部分,单桨螺旋桨可以并入固定和旋转翼型垂直起降飞机中。 第一推进系统可以包括由电动机,燃烧发动机和/或混合发动机驱动的一个或多个单个叶片螺旋桨。 单个叶片螺旋桨中的每一个可以包括提升产生叶片和与提升产生叶片相对的配重。 当每个单刀片螺旋桨旋转时,它可能在大致垂直于地平线的方向上产生升力以实现垂直飞行。

    ADJUSTABLE MOTOR FAIRINGS FOR AERIAL VEHICLES

    公开(公告)号:US20220371740A1

    公开(公告)日:2022-11-24

    申请号:US17881873

    申请日:2022-08-05

    Abstract: Systems and methods to reduce aerodynamic drag and/or affect flight characteristics of an aerial vehicle may include adjustable fairings associated with one or more components of the aerial vehicle. The adjustable fairings may be coupled to and at least partially surround a motor, propulsion mechanism, motor arm, strut, or other component of an aerial vehicle. In addition, the adjustable fairings may be passively movable between two or more positions responsive to airflow around the fairings, and/or the adjustable fairings may be actively moved between two more positions to affect flight characteristics. Further, the adjustable fairings may include actuatable elements to alter a portion of an outer surface of the fairings to thereby affect flight characteristics. In this manner, adjustable fairings associated with various components of an aerial vehicle may reduce aerodynamic drag and/or may improve control and safety of an aerial vehicle.

    Directed audio-encoded data emission systems and methods for vehicles and devices

    公开(公告)号:US11454982B1

    公开(公告)日:2022-09-27

    申请号:US16666263

    申请日:2019-10-28

    Abstract: Directed audio-encoded data emissions systems and methods may include one or more sensors, one or more audio transmitters, and a controller configured to cause emission of directed audio-encoded data toward various objects, such as vehicles, user devices, audio input/output devices, or others. For example, responsive to detecting a potential safety situation and/or a potential intended communication situation associated with one or more detected objects, audio-encoded data having selected audio characteristics may be emitted toward the detected objects using selected audio transmitters. The audio characteristics may be selected to encode one or more instructions to be executed by the detected objects, and the instructions may cause emission of audio, visual, or haptic notifications and/or initiation of various functions or operations by the objects.

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