Invention Grant
US07825804B2 Methods and apparatus for opportunistic locationing of RF tags using location triggers 有权
使用位置触发器对RF标签进行机会定位的方法和装置

  • Patent Title: Methods and apparatus for opportunistic locationing of RF tags using location triggers
  • Patent Title (中): 使用位置触发器对RF标签进行机会定位的方法和装置
  • Application No.: US11669641
    Application Date: 2007-01-31
  • Publication No.: US07825804B2
    Publication Date: 2010-11-02
  • Inventor: Ajay Malik
  • Applicant: Ajay Malik
  • Applicant Address: US NY Holtsville
  • Assignee: Symbol Technologies, Inc.
  • Current Assignee: Symbol Technologies, Inc.
  • Current Assignee Address: US NY Holtsville
  • Main IPC: G08B13/14
  • IPC: G08B13/14 H04Q5/22 G08C19/00
Methods and apparatus for opportunistic locationing of RF tags using location triggers
Abstract:
An RFID system provides opportunistic locationing of RFID tags and associated assets in environments where multiple tags are read from multiple readers. A radio frequency identification (RFID) system includes one or more location triggers and a first RFID reader coupled to the network having a first antenna associated therewith. The first reader is configured to read a first set of tag IDs from a first set of RFID tags within a first range of the first antenna. A second RFID reader is coupled to the network and has a second antenna associated therewith. The second RFID reader is configured to read a second set of tag IDs from a second set of RFID tags within a second range of the second antenna. An RF switch is coupled to the network and is configured to receive the first set of tag IDs and the second set of tag IDs from the first RFID reader and the second RFID reader. The RF switch is configured to reconcile the location of an asset having a particular tag ID when the particular tag ID is an element of both the first set of tag IDs and the second set of tag IDs.
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