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Collision resolution protocol for mobile RFID tag identification

机译:用于移动RFID标签识别的冲突解决协议

摘要

The performance of a radio frequency identification (RFID) system is improved by a protocol that eliminates collisions between signals generated by a) RFID tags that the RFID reader has already identified as being in its interrogation zone and b) RFID tags that are newly arrived and thus that the reader has not yet identified. This is illustratively accomplished by the use of separate identification and access frames. It is during the identification frame that newly arrived tags become identified by the reader. Although there may be collisions during the identification frame, those collisions are only among newly arrived tags. The already-identified tags communicate with the reader during respective time slots of the access frame, so that they neither collide with each other nor with the newly arrived tags.
机译:射频识别(RFID)系统的性能通过协议进行了改进,该协议消除了以下问题之间的冲突:a)RFID阅读器已将其识别为处于其询问区域的RFID标签和b)新到达的RFID标签和因此读者尚未确定。说明性地,这是通过使用单独的识别和访问帧来实现的。在识别帧期间,新到达的标签被读取器识别。尽管在识别帧期间可能存在冲突,但是这些冲突仅在新到达的标签之间。已经识别出的标签在访问帧的各个时隙期间与读取器通信,从而它们既不会彼此碰撞也不会与新到达的标签冲突。

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