TAG ESTIMATION METHOD AND TAG IDENTIFICATION METHOD FOR RFID SYSTEM
    5.
    发明申请
    TAG ESTIMATION METHOD AND TAG IDENTIFICATION METHOD FOR RFID SYSTEM 有权
    RFID系统的标签估计方法和标签识别方法

    公开(公告)号:US20090134975A1

    公开(公告)日:2009-05-28

    申请号:US12027756

    申请日:2008-02-07

    IPC分类号: H04Q5/22

    摘要: Provided are a tag estimation method and a tag identification method using the same in a RFID system. In the tag estimating method, a reader divides tags in an identifiable area into a predetermined number of groups. Tags are identified by applying a pilot frame Lp to a first group among the divided groups. The reader calculates a collision probability Pcoll of tags after the pilot frame ends. Then, unidentified tags of the first group, which are not identified for the pilot frame, are identified by allocating an additional pilot slot Ladd at an end of the pilot frame or generating a new frame L1 according to the collision probability Pcoll.

    摘要翻译: 提供了一种RFID系统中的标签估计方法和使用该标签的标签识别方法。 在标签估计方法中,读取器将可识别区域中的标签分成预定数量的组。 通过将划分的组中的第一组应用导频帧Lp来识别标签。 读者计算导频帧结束后的标签的碰撞概率Pcoll。 然后,通过在导频帧的末尾分配附加导频时隙Ladd或者根据冲突概率Pcoll产生新的帧L1,来识别未被识别用于导频帧的第一组的未识别标签。

    Tag estimation method and tag identification method for RFID system
    8.
    发明授权
    Tag estimation method and tag identification method for RFID system 有权
    RFID系统的标签估计方法和标签识别方法

    公开(公告)号:US08115602B2

    公开(公告)日:2012-02-14

    申请号:US12027756

    申请日:2008-02-07

    IPC分类号: H04Q5/22

    摘要: Provided are a tag estimation method and a tag identification method using the same in a RFID system. In the tag estimating method, a reader divides tags in an identifiable area into a predetermined number of groups. Tags are identified by applying a pilot frame Lp to a first group among the divided groups. The reader calculates a collision probability Pcoll of tags after the pilot frame ends. Then, unidentified tags of the first group, which are not identified for the pilot frame, are identified by allocating an additional pilot slot Ladd at an end of the pilot frame or generating a new frame L1 according to the collision probability Pcoll.

    摘要翻译: 提供了一种RFID系统中的标签估计方法和使用该标签的标签识别方法。 在标签估计方法中,读取器将可识别区域中的标签分成预定数量的组。 通过将划分的组中的第一组应用导频帧Lp来识别标签。 读者计算导频帧结束后的标签的碰撞概率Pcoll。 然后,通过在导频帧的末尾分配附加导频时隙Ladd或者根据冲突概率Pcoll产生新的帧L1,来识别未被识别用于导频帧的第一组的未识别标签。