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公开(公告)号:US20070236332A1
公开(公告)日:2007-10-11
申请号:US11689609
申请日:2007-03-22
申请人: ChengHao QUAN , Hae-Won SON , Hee-Sook MO , Ji-Hoon BAE , Dong-Han LEE , Gil-Young CHOI , Cheol-Sig PYO , Jong-Suk CHAE
发明人: ChengHao QUAN , Hae-Won SON , Hee-Sook MO , Ji-Hoon BAE , Dong-Han LEE , Gil-Young CHOI , Cheol-Sig PYO , Jong-Suk CHAE
IPC分类号: H04Q5/22
CPC分类号: G01D21/00
摘要: Provided is a method for reading a tag in a mobile Radio Frequency Identification (RFID) environment. The tag reading method effectively identifies a tag by repeatedly transmitting a tag identification request in a predetermined time to prevent collision among RFID readers, when a plurality of RFID readers access to a tag. The method for reading a tag in a mobile RFID environment, which includes the steps of: a) transmitting a tag identification request signal to a tag; b) waiting for an acknowledgement signal to be transmitted from the tag; and c) when no acknowledgement signal is transmitted from the tag, retransmitting the tag identification request signal after a predetermined delay time passes.
摘要翻译: 提供了一种在移动射频识别(RFID)环境中读取标签的方法。 标签读取方法在多个RFID阅读器访问标签时,通过在预定时间内重复发送标签识别请求来有效地识别标签,以防止RFID读取器之间的冲突。 一种用于在移动RFID环境中读取标签的方法,包括以下步骤:a)向标签发送标签识别请求信号; b)等待从标签发送确认信号; 以及c)当没有从所述标签发送确认信号时,经过预定延迟时间之后重传所述标签识别请求信号。