| 摘要 |
PROBLEM TO BE SOLVED: To provide a sprint time measurement system that automatically performs a series of operation to the start of a runner, can accurately decide possibility of flying by sensing the movement of the runner, and enables time measurement alone.SOLUTION: In a runner side unit worn by a runner on a body, a voice such as ready, steady and go is output, and is transmitted to a goal side unit by radio. An acceleration sensor built in a runner side unit detects the movement of the runner to detect flying. The goal side unit starts measurement based on the signal received from the runner side unit, and detects the fact that the runner reaches a goal line with an infrared sensor built in the goal side unit, and thereby time measurement is performed and the time is displayed on a display device.SELECTED DRAWING: Figure 1 |
