Invention Grant
US07675403B2 Method for estimating number of tags in slotted aloha-based RFID system
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用于估计基于时隙的aloha RFID系统中的标签数量的方法
- Patent Title: Method for estimating number of tags in slotted aloha-based RFID system
- Patent Title (中): 用于估计基于时隙的aloha RFID系统中的标签数量的方法
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Application No.: US11497749Application Date: 2006-08-02
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Publication No.: US07675403B2Publication Date: 2010-03-09
- Inventor: ChengHao Quan , Hee-Sook Mo , Dong-Han Lee , Ji-Hoon Bae , Gil-Young Choi , Cheol-Sig Pyo , Jong-Suk Chae
- Applicant: ChengHao Quan , Hee-Sook Mo , Dong-Han Lee , Ji-Hoon Bae , Gil-Young Choi , Cheol-Sig Pyo , Jong-Suk Chae
- Applicant Address: KR Daejeon
- Assignee: Electronics and Telecommunications Research Institute
- Current Assignee: Electronics and Telecommunications Research Institute
- Current Assignee Address: KR Daejeon
- Agency: Ladas & Parry LLP
- Priority: KR10-2005-0105074 20051103
- Main IPC: H04Q5/22
- IPC: H04Q5/22
Abstract:
Provided is a method for estimating the number of tags in a slotted Aloha-based RFID system, which can estimate the number of tags through a new statistical average scheme using the number of slots, the measured number of empty slots, and the measured number of ID slots. The estimating method includes the steps of: a) setting the number (N) of slots, the measured number (c0) of empty slots, and the measured number (c1) of ID slots as parameters; and estimating the number (n) of the tags by substituting the set values into n=(N−1)/(c0/c1).
Public/Granted literature
- US20070096877A1 Method for estimating number of tags in slotted aloha-based RFID system Public/Granted day:2007-05-03
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