Title:
POSITION ESTIMATION DEVICE
Document Type and Number:
Japanese Patent JP2016045022
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce an error in estimating a target position in a wireless mesh network.SOLUTION: A position estimation device according to a first embodiment estimates the position of a second terminal in a wireless network provided with a plurality of terminals including three or more first terminals whose positions are known and a second terminal whose position is unknown. The position estimation device calculates first connection probability with which two out of the plurality of terminals are connected, on the basis of the distance and the minimum number of hops between the two terminals. The position estimation device finds likelihood on the basis of the first connection probability, and estimates the position of the second terminal using the likelihood.SELECTED DRAWING: Figure 6
Inventors:
NGUYEN CAM LY
DOI YUSUKE
DOI YUSUKE
Application Number:
JP2014167920A
Publication Date:
April 04, 2016
Filing Date:
August 20, 2014
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
H04W4/029; G01S5/02; H04L45/122; H04W64/00
Domestic Patent References:
| JP2006229845A | 2006-08-31 |
Foreign References:
| WO2014013578A1 | 2014-01-23 |
Other References:
河内 康佑 ほか４名: "センサネットワークにおけるHOP-Vectorに基づくノード位置推定手法の検討", 第７回情報科学技術フォーラム 講演論文集, vol. 第４分冊, JPN6017026382, 20 August 2008 (2008-08-20), JP, pages 第４７−５０頁
L.A.ANTO GRACIOUS, T.C.SUBBULAKSHMI: "Multihop distance estimation with Greedy approach in wireless sensor networks", EMERGING TRENDS IN ELECTRICAL AND COMPUTER TECHNOLOGY (ICETECT), 2011 INTERNATIONAL CONFERENCE ON, JPN6012042048, March 2011 (2011-03-01)
L.A.ANTO GRACIOUS, T.C.SUBBULAKSHMI: "Multihop distance estimation with Greedy approach in wireless sensor networks", EMERGING TRENDS IN ELECTRICAL AND COMPUTER TECHNOLOGY (ICETECT), 2011 INTERNATIONAL CONFERENCE ON, JPN6012042048, March 2011 (2011-03-01)
Attorney, Agent or Firm:
Sakai International Patent Office
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