| 摘要 |
The present invention provides a bidirectional pitching-net system, which comprises: a ball sensing unit arranged in front of a user for sensing a real time 3D position of a ball by using an ultrasound sensor when the ball sent by the user falls; a calculation unit for determining whether to be satisfied with a specific rule by calculating a moving direction and a moving speed of the ball; and an effect control unit for reacting to the ball and the user whether the ball has a trajectory satisfied with specific rules. |
