发明名称 POSITION DETECTING SYSTEM AND RFID TERMINAL
摘要 A position detecting system includes an RFID terminal configured to transmit an identification information signal by radio; a plurality of receiving devices configured to receive the identification information signal; and a position detecting server configured to receive a reception notification of the identification information signal from each of the receiving device and configured to estimate a position of the RFID terminal. The RFID terminal includes a part configured to perform radio transmission of a plurality of identification information signals having different radio strengths. The position detecting server includes a part configured to integrate the reception notifications of the identification information signals having different radio strengths and configured to estimate the position of the RFID terminal.
申请公布号 EP1855124(A1) 申请公布日期 2007.11.14
申请号 EP20050719843 申请日期 2005.03.02
申请人 FUJITSU LTD. 发明人 NAGINO, HIDEKI;SAJIKAWA, YASUYUKI
分类号 G01S5/02;G01S5/14;G01S11/02;H04W4/02;H04W64/00 主分类号 G01S5/02
代理机构 代理人
主权项
地址