| 摘要 |
PROBLEM TO BE SOLVED: To provide a system capable of recognizing not only the position of a flying ball but also behavior such as a rotating state, a moving direction and a moving speed of the ball at real time without requiring a large-scale and expensive machinery. SOLUTION: This ball moving record recognition/display system uses a ball having either one of an angular speed sensor or an acceleration sensor in its inside, and a means wirelessly transmitting a signal detected thereby, and computes the behavior of the ball by receiving the signal transmitted from the ball. This ball displays the record by obtaining the record related to the rotating state, the moving direction, the moving state, and the present position of the ball at real time (or stores the record in a memory and displays the stored record in an appropriate time). COPYRIGHT: (C)2007,JPO&INPIT
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