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.
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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 |
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代理人 |
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主权项 |
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地址 |
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