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公开(公告)号：US5294912A
公开(公告)日：1994-03-15
申请号：US733841
申请日：1991-07-22
CPC分类号： A63B71/0605 , A63B5/00
摘要： A long or triple jump foul detector system is disclosed which very accurately detects a foul by an athlete when a portion of an athlete's shoe crosses over a foul line when beginning the jump. A laser beam is emitted parallel to and directly above the foul line. A laser beam detector detects interruption of the laser beam by the athlete's shoe and a foul detector provides a foul indication. An audible foul indication is delayed so as not to interfere with the athlete's jump. Also, the system may provide additional detection of an athlete's foot crossing a training line positioned in front of the foul line. Furthermore, the system distinguishes between a relatively quick interruption of the beam caused by the athlete's shoe when jumping, and a relatively slow interruption of the beam which may result such as by a judge placing his or her hand in the beam when measuring a jump. The system is equally well adaptable to either indoor or outdoor long or triple jump competition, and includes convenient set-up procedures which ensure accuracy. The system also automatically compensates for varying light conditions and is effective in bright sunlight. When a low battery voltage condition arises, the system automatically alerts the operator. A micro-processor is employed for rapid and accurate control of the various functions performed by the system.
摘要翻译： 公开了一种长或三跳式犯规检测器系统，当运动员的一部分鞋在开始跳跃时穿过犯规线时，其非常准确地检测运动员的犯规。 激光束平行于直线上方发出激光束。 激光束检测器检测到运动员鞋的激光束的中断，并且恶劣的检测器提供了恶臭指示。 一个可听见的犯规指示被延迟，以免干扰运动员的跳跃。 此外，该系统可以提供穿过位于犯规线前方的训练线的运动员脚的附加检测。 此外，该系统区分跳跃时由运动员鞋子引起的波束的相对快速的中断以及波束的相对缓慢的中断，这可能导致例如当测量跳跃时法官将他或她的手放在波束中。 该系统同样适用于室内或室外长跳或三跳比赛，并包括方便的设置程序，确保准确性。 该系统还自动补偿不同的光线条件，并在明亮的阳光下有效。 当电池电压不足的情况出现时，系统会自动向操作员发出警报。 微处理器用于对系统执行的各种功能进行快速和准确的控制。
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