公开(公告)号：US20130194078A1

公开(公告)日：2013-08-01

申请号：US13577176

申请日：2010-12-07

申请人： Andreas Bohnenberger ,  Daniel Evers ,  Martin Glänzer ,  Ulrike Heim ,  Fabian Kurz

发明人： Andreas Bohnenberger ,  Daniel Evers ,  Martin Glänzer ,  Ulrike Heim ,  Fabian Kurz

IPC分类号： G06K7/00

CPC分类号： G06K7/0008 ,  G06K7/10079

摘要： An antenna device in a reading device has a main radiation direction and receives a signal transmitted by a transponder. An electronic assembly calculates a direction from the reading device to the transponder using the received signal. An orientation detector in the reading device, for example an electronic compass, detects an absolute orientation of the reading device with respect to an exterior region. While the main radiation direction of the antenna is pivoted in the region and the signal strength is measured, the orientation in the region is simultaneously detected. A correlation of the orientation that is detected at a point in time to the signal strength that is measured at the same point in time allows determination of the direction to the transponder because it can be assumed that the signal has a maximum when the main radiation direction points in the direction of the transponder.

摘要翻译： 读取装置中的天线装置具有主辐射方向并且接收由应答器发送的信号。 电子组件使用接收信号计算从读取装置到应答器的方向。 读取装置（例如电子罗盘）中的取向检测器检测读取装置相对于外部区域的绝对取向。 虽然天线的主辐射方向在该区域中枢转并且测量信号强度，但是同时检测该区域中的取向。 在一个时间点检测到的方向与在同一时间点测量的信号强度的相关性允许确定到应答器的方向，因为可以假设当主辐射方向 指向转发器的方向。