| 摘要 |
The invention relates to system and method for measuring speed of a golf ball in putting as a part of a golf game, as well as other characteristics of the game. The system consists of a group of optical light emitting and receiving devices built into the putter head and exposed to the light reflected from the golf ball during rolling on the putter green. The putter head also contains force sensor for measuring a force applied from the club head to the golf ball and a gyro sensor which measures angular deviation of the actual direction of hit from a reference direction which has been preliminarily entered into the system. A microprocessor that receives and processed the information from the optical, force, and gyro components is built into the putter grip. The latter also contains a IR receiving/transmitting device which transmits the processed data to a remotely located microprocessor and display. The method and system of the invention are based on a principle of measuring the speed of rolling of the golf ball by measuring the number of revolutions of the ball during rolling. For this purpose the ball is provided with at least one equatorial mark detectable by the light receiving optical sensors. The ball is irradiated by the light emitted from the aforementioned light emitting devices, and each revolution of the ball is sensed as a light signal produced by the light reflected from the equatorial mark of the ball. The system produced a modulated light signal having a frequency of modulation corresponding to the frequency of rotation of the ball during rolling. The results of measurements of the angles and speed can be selectively shown to the golfer in a real time of the game.
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