| 摘要 |
FIELD: sports.SUBSTANCE: on a standard basketball basket in close proximity to the shield the sensor is mounted, recording the hit of the ball on the basket ring or the shield, on the basket mesh at the distance from the ring, equal to half the diameter of the ball, the sensor is mounted, recording the exact hit of the ball without touching the ring, over the ring at the predetermined height the video-camera is mounted, the image from the video-camera is transmitted to the computer; the basketball player is located in the zone of free throws and makes the throw on the first signal from the sensor mounted on the basket, or in the absence of the signal from this sensor, on the signal from the sensor mounted on the mesh, the computer records in a horizontal plane passing through the ring, the position of the projection the ball relative to the ring and displays it on the monitor, the distance from the centre of the projection of the ball to the centre of the ring in the predetermined coordinates is displayed on the monitor, the basketball player analyses the position of the projection of the ball relative to the ring and the value of the distances from the centre of the projection of the ball to the centre of the ring in the given coordinates, if necessary, adjusts its actions and performs the following free throw; at the end of training the computer calculates the arithmetic mean of the distances from the centre of the projection of the ball to the centre of the ring in the predetermined coordinates, and on the arithmetic mean value of the distances from the centre of the projection of the ball to the centre of the ring the accuracy of performance of free throws is determined.EFFECT: increased efficiency of training of free throws in basketball by evaluating their accuracy.1 dwg |
