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    • 3. 发明申请
    • Golf ball flight monitoring system
    • 高尔夫球飞行监控系统
    • US20070213139A1
    • 2007-09-13
    • US11800868
    • 2007-05-08
    • Keith StiversAllan EpsteinSteve Lamb
    • Keith StiversAllan EpsteinSteve Lamb
    • A63B57/00
    • A63B69/3658A63B24/0003A63B24/0021A63B43/008A63B69/3614A63B71/06A63B2024/0028A63B2024/0031A63B2024/0034A63B2207/02A63B2220/05A63B2220/30A63B2220/35A63B2220/805A63B2220/807A63B2220/808A63B2220/89
    • An golf flight path and swing monitoring apparatus includes a first and second spaced-apart sensors for determining club head speed during a golf downswing. A computer running a software program is configured for calculating the swing path, club head speed and club head angle at impact with a ball based on the monitored light signals of the sensors. Multiple temporally successive images of the ball after impact are captured for comparison and total ball flight characteristics determination. The golf ball has a stripe at least halfway around its surface that is apparent within each image notwithstanding the rotated position of the ball. Linear extrapolations of the marking and circumferential extrapolations of the images are automatically performed by the computer. Three-dimensional positions, preferably based on calculated diameters, are calculated based on the circumferential extrapolations. Initial backspin, sidespin and three-dimensional velocity of the golf ball are calculated based on the circumferential and linear extrapolations, and on the curvature and position of the stripes, and the calculated three-dimensional positions. The sensors are used to trigger the shuttering of the camera and flashlamps used to capture the images. An impact image can also be captured and the relative position of the club head to the ball at impact observed and evaluated. The energy transfer efficiency of the impact between the club head and ball may also be determined and compared with other transfer efficiencies of other impacts of other swings.
    • 高尔夫飞行路径和摆动监视装置包括用于在高尔夫下摆期间确定球杆头速度的第一和第二间隔开的传感器。 运行软件程序的计算机被配置为基于所监测的传感器的光信号来计算与球碰撞时的摇摆路径,球杆头速度和球杆头角度。 拍摄冲击后的球的多个时间连续的图像被捕获用于比较和总球飞行特性确定。 尽管球的旋转位置,高尔夫球至少在其表面的一半处具有条纹,这在每个图像中是明显的。 计算机自动执行图像的标记和周期外推的线性外推。 优选基于计算的直径的三维位置基于圆周外推来计算。 基于圆周和线性外推以及条纹的曲率和位置以及计算的三维位置来计算高尔夫球的初始后旋,侧面和三维速度。 传感器用于触发相机的快门和用于拍摄图像的闪光灯。 也可以捕获冲击图像,并观察和评估在撞击时球杆头与球的相对位置。 也可以确定球杆头和球之间冲击的能量传递效率,并与其他摆动的其他影响的其他转移效率进行比较。