公开(公告)号：WO1995029456A1

公开(公告)日：1995-11-02

申请号：PCT/US1995004825

申请日：1995-04-25

Applicant: INDALA CORPORATION

Inventor： INDALA CORPORATION ,  GEISZLER, Theodore, D. ,  EBERHARDT, Noel, H. ,  WALKER, Russel, E. ,  RADDING, Herbert, P.

IPC: G06K07/08

CPC classification number: G06K7/10178 ,  B65F1/1484 ,  B65F2003/023 ,  B65F2210/124 ,  G06K7/10336

Abstract: A reader (32) for radio frequency identification tags (24) having at least one magnetic field transmitting and receiving coil (26) which is oriented in a given plane and which is responsive to a received magnetic exciter field of a first frequency to produce and radiate an identifying magnetic field comprised of a carrier at a second different frequency modulated by an identifying code. The reader comprises a first circuit (37) for producing a radio frequency signal of the first frequency; a first magnetic field coupling arrangement (34, 36, 38) connected to the output of said first circuit (37) for producing a corresponding exciter field at the first frequency to be magnetically coupled to the receiving coil (26) of the tag (24), with the first magnetic field coupling arrangement including a solenoidal exciter coil (34) having at least one wound exciter winding and a longitudinal axis disposed substantially perpendicular to the plane of the tag coil (26); a second magnetic field coupling arrangement (42, 44) for receiving a magnetic field of the second frequency produced by the tag (24) and providing a corresponding electrical signal, with the second magnetic field coupling arrangement including at least one receiver coil (42, 44) disposed adjacent one end of the solenoidal coil (34); and circuitry (46) connected to the receiver coil (42, 44) for decoding the received electrical signal. Preferably the tag (24) is disposed on the lid (22) of a trash or waste bin (14) with the tag coil (26) being substantially horizontal, and the axis of the exciter coil (34), which is disposed substantially vertically. According to the preferred embodiment, the reader (32) is disposed on the end of a robot arm (12) mounted on a trash truck (10) and a switch (58) is additionally provided on the arm to enable counting of the number of bins (14) which has been lifted by the robot arm (12).

Abstract translation: 一种用于射频识别标签（24）的读取器（32），其具有至少一个磁场发射和接收线圈（26），所述磁场发射和接收线圈（26）定向在给定平面中，并且响应于接收到的第一频率的磁激励器场产生和 以由识别码调制的第二不同频率辐射包括载波的识别磁场。 读取器包括用于产生第一频率的射频信号的第一电路（37） 连接到所述第一电路（37）的输出端的第一磁场耦合装置（34,36,38），用于产生第一频率的对应的激励器磁场，以磁性耦合到标签（24）的接收线圈（26） ），其中所述第一磁场耦合装置包括具有至少一个缠绕的激励器绕组的螺线管励磁线圈（34）和基本上垂直于所述标签线圈（26）的平面设置的纵轴; 用于接收由所述标签（24）产生的第二频率的磁场并提供对应的电信号的第二磁场耦合装置（42,44），所述第二磁场耦合装置包括至少一个接收器线圈（42， 44）设置在所述螺线管线圈（34）的一端附近; 以及连接到接收器线圈（42,44）以用于解码所接收的电信号的电路（46）。 优选地，标签（24）设置在垃圾箱或垃圾箱（14）的盖（22）上，标签线圈（26）基本上是水平的，并且激励器线圈（34）的轴线基本垂直地设置 。 根据优选实施例，读取器（32）设置在安装在垃圾车（10）上的机器人臂（12）的端部上，并且在臂上另外设置开关（58），以使得能够计数 由机器人手臂（12）提升的料仓（14）。