公开(公告)号：US20060034206A1

公开(公告)日：2006-02-16

申请号：US10530914

申请日：2003-09-08

申请人： Klaus Jacobi ,  Maik Schaefer ,  Rolf Schuler ,  Helmut Serr ,  Peter Tolksdorf

发明人： Klaus Jacobi ,  Maik Schaefer ,  Rolf Schuler ,  Helmut Serr ,  Peter Tolksdorf

IPC分类号： H04B7/212

CPC分类号： G07C9/00309 ,  G01S13/765 ,  G07C2009/00793 ,  G07C2209/63

摘要： 1. Method for determining the distance between two transmitting and receiving stations and transmitting and receiving stations for carrying out the method. 2.1. In automotive engineering transmitting and receiving stations are usually used in keyless locking systems as electronic key modules or evaluation units for identifying the key module. Deactivation of the locking system is prevented if the key module allocated by means of a clear identification number from the evaluation unit is not in the immediate vicinity of the evaluation unit. Communication between the evaluation unit and the key module is carried out by transmitting data telegrams between transmitting and receiving stations. The aim of the invention is to determine the distance between the transmitting and receiving stations in a simple manner. 2.2. According to the novel method, at least three data telegrams are alternately transmitted between the transmitting and receiving stations; when the data telegram is received, each data bit of said data telegram is associated with a counter value corresponding to the counter state of a free-running counter at the moment when the respective data bit is received; a counter sum is associated with each data telegram as a sum or average value of the counter values determined during reception of the data telegram concerned and a sum figure is formed by weighted summation of the counter sums as an indicator of the distance between the transmitting and receiving stations.

摘要翻译： 1.确定两个发射台和发射台与发射台和接收台之间距离的方法。 2.1。 在汽车工程中，发送和接收站通常用于无钥匙锁定系统中，作为用于识别钥匙模块的电子钥匙模块或评估单元。 如果通过来自评估单元的清楚标识号分配的密钥模块不在评估单元附近，则防止锁定系统的停用。 通过在发送站和接收站之间传送数据报文来执行评估单元和密钥模块之间的通信。 本发明的目的是以简单的方式确定发射站和接收站之间的距离。 2.2。 根据新颖的方法，在发射站和接收站之间交替传送至少三条数据报文; 当接收到数据电报时，所述数据报文的每个数据位与在接收到相应的数据位的时刻与自由运行的计数器的计数器状态对应的计数器值相关联; 计数器和每个数据电报相关联，作为在接收到有关数据电报期间确定的计数器值的和或平均值，并且通过计数器和的加权求和形成和数作为发送和 接收站。