Title:
測位装置
Document Type and Number:
Japanese Patent JP5515647
Kind Code:
B2
Abstract:
Disclosed is a position measuring device capable of estimating positions of human beings, animals, articles, and the like on the basis of beacon signals from wireless beacon devices while maintaining high position-measuring accuracy and robustness to external noise or to lack of signals. Also disclosed is an observing system using the same. Particles pi'{(coordinates)i', (weight)i} and beacon patterns BP(pi') thereof after probabilistic transition are calculated. Particle filtering of the particles pi'{(coordinates)i', (weight)i} after the probabilistic transition is performed by calculating likelihood using the calculated beacon patterns BP(pi') and actual received beacon patterns BP(Receiver). New particles pi''{(coordinates)i', (weight)i'} are calculated by updating the (weight)i of the particles pi'{(coordinates)i', (weight)i} after the transition using the likelihood. A loop of these processes is repeated.
Inventors:
Koichi Kurumaya
Akio Kojima
Akio Kojima
Application Number:
JP2009254364A
Publication Date:
June 11, 2014
Filing Date:
November 05, 2009
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
idur corporation
idur corporation
International Classes:
G01S5/10; G01S5/16; H04W64/00
Domestic Patent References:
| JP2007208962A | ||||
| JP2008128726A | ||||
| JP2004242122A | ||||
| JP2008014742A | ||||
| JP2009055138A | ||||
| JP2008536348A | ||||
| JP2010239331A | ||||
| JP11211479A | ||||
| JP2007160076A | ||||
| JP2010125239A |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Toshifumi Onuki
Takahiro Kobuki
Toshifumi Onuki
Takahiro Kobuki