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2. 发明公开

EP3126868A1 A METHOD, A SYSTEM, A TRANSPONDER, AND A POSITION DETECTION APPARATUS FOR A PRECISE MEASUREMENT OF A POSITION 有权转让
标题翻译： VERFAHREN，系统，TRANSPONDER UND POSITIONSERKENNUNGSVORRICHTUNG ZURPRÄZISENMESSUNG EINER POSITION
公开(公告)号：EP3126868A1
公开(公告)日：2017-02-08
申请号：EP15772713.2
申请日：2015-03-31
申请人： Utvecklingsavdelningen i Sverige AB
发明人： WALLIN, Kjell
IPC分类号： G01S13/74 , G01S5/02 , G01S13/06
CPC分类号： G01S13/767 , G01S5/02 , G01S13/74 , G01S13/76
摘要： The present invention relates to a system for determining a distance, a transponder, a position detection apparatus, and a method therefor. The method for determining a distance comprises providing a position detection apparatus (101), and a transponder (105). The method further comprises generating (201) a pseudo number sequence, transmitting (202) the pseudo number sequence, receiving (203) the pseudo number sequence;modulate (204) the received pseudo number sequence by means of delaying the recieved pseudo number sequence a predetermined number of clock cycles from a group of at least two predetermined number of clock cycles. The method further comprises transmitting (205) the modulated pseudo number sequence, recieving (206) the modulated pseudo number sequence, detecting (207) a path time of the pseudo number sequence, by means of delaying and correlating the generated pseudo number sequence with the received modulated pseudo number sequence, wherein the delay time corresponds to the path time, The method further comprises detecting (208) a clock correction factor for the transponder (105) using the received modulated pseudo number sequence, calculating (209) a flight time of the pseudo number sequence between the position detection apparatus and the transponder by means of the path time, the clock correction factor, and the predetermined number of clock cycles of the transponder, and calculating (210) the distance between said position detection apparatus and said transponder by means of the flight time.
摘要翻译：本发明涉及一种用于确定距离的系统，应答器，位置检测装置及其方法。用于确定距离的方法包括提供位置检测装置（101）和应答器（105）。该方法还包括产生（201）伪数序列，发送（202）伪数序列，接收（203）伪数序列; 通过将收到的伪数序列从至少两个预定数量的时钟周期的组中延迟预定数量的时钟周期来调制（204）所接收的伪数序列。该方法还包括发送（205）调制的伪数序列，接收（206）调制的伪数序列，通过延迟生成的伪数序列和将所产生的伪数序列相关联来检测（207）伪数序列的路径时间接收的调制伪数序列，其中延迟时间对应于路径时间。该方法还包括使用接收的调制伪数序列来检测（208）应答器（105）的时钟校正因子，计算（209）通过路径时间，时钟校正因子和应答器的预定数量的时钟周期在位置检测装置和应答器之间的伪数序列，并且计算（210）所述位置检测装置和所述应答器之间的距离通过飞行时间。

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