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1. 发明授权

US6147759A System for detecting the presence and location of at least one object in a field by using a divergent radiation source and an array of opposed plural detectors which rotate together around the field 失效
标题翻译：用于通过使用发散辐射源和相对的多个检测器的阵列来检测场中至少一个物体的存在和位置的系统，所述多个检测器围绕场围绕一起旋转
公开(公告)号：US6147759A
公开(公告)日：2000-11-14
申请号：US243138
申请日：1999-02-03
申请人： George R. Simmons , Edmond J. Dougherty , Anders G. Andersson , Gregory M. Bone , Albert Augustine, Jr. , Charles T. Griswold , Gary D. Giegerich , Paul T. Giegerich , William G. Van Ocker
发明人： George R. Simmons , Edmond J. Dougherty , Anders G. Andersson , Gregory M. Bone , Albert Augustine, Jr. , Charles T. Griswold , Gary D. Giegerich , Paul T. Giegerich , William G. Van Ocker
IPC分类号： F41J3/00 , F41J5/02 , G01B11/00 , G01B11/03
CPC分类号： G01B11/002 , F41J3/00 , F41J5/02
摘要： An apparatus detects the presence and location of at least one object in a field. The apparatus comprises a rotating arm which spins around the field, a position sensor for detecting the angular displacement of the rotating arm relative to a fixed point, and a processor. The rotating arm includes a transmitter and an opposing receiver array mounted thereon and fixed relative to each other. The receiver array includes a plurality of receivers located horizontally coplanar with each other. The receivers are concentrated towards one side of the receiver array which is aligned with a center region of the dartboard. The transmitter outputs a detection beam that emanates from a single point, such as a divergent beam. The detection beam overlaps the field and is simultaneously received at all times by the plurality of receivers of the receiver array. The receivers detect changes which occur in the field as a result of an object being in the field, manifested by shadows on the field. The processor receives output signals from the plurality of receivers and angular displacement data corresponding to the output signals, and determines therefrom the presence and location of an object in the field. The field may be a dartboard front surface and the detected object in the field may be a dart which lands on the dartboard front surface. The dartboard may be a Bandit.RTM. dartboard. The dartboard may be mounted in a housing wherein the front of the housing includes an outer catch ring area having a plurality of removably attachable catch ring segments made of dart-permeable and dart catching material. The processor detects when a player's turn is over by detecting removal of the darts from the dartboard, and automatically advances a scoring display to the next player.
摘要翻译：设备检测场中至少一个物体的存在和位置。该装置包括围绕场的旋转臂，用于检测旋转臂相对于固定点的角位移的位置传感器和处理器。旋转臂包括发射器和安装在其上并相对于彼此固定的相对的接收器阵列。接收器阵列包括彼此水平共面定位的多个接收器。接收器集中在与飞镖靶的中心区域对准的接收器阵列的一侧。发射机输出从单个点（例如发散光束）发出的检测光束。检测光束与场重叠，同时由接收器阵列的多个接收器同时接收。接收器检测由于场中的对象的结果而在字段中发生的变化，由场上的阴影表现出来。处理器接收来自多个接收机的输出信号和对应于输出信号的角位移数据，从而确定场中物体的存在和位置。该场可以是飞镖板前表面，并且该领域中的被检测物体可以是落在飞镖板前表面上的飞镖。飞镖可能是一个强盗TM飞镖。飞镖板可以安装在壳体中，其中壳体的前部包括具有多个可由可飞镖和镖捕获材料制成的可移除地附接的卡环环的外卡环区域。处理器通过检测从飞镖板上的飞镖的移除来检测玩家的转弯何时结束，并自动将得分显示提前到下一个玩家。

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