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Patent Searching and Data


Title:
INDOOR POSITION ESTIMATION APPARATUS, INDOOR POSITION ESTIMATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/026514
Kind Code:
A1
Abstract:
The present disclosure provides an indoor position estimation apparatus (100) comprising: a first acquisition unit (121) which acquires a target magnetic pattern indicating a result obtained from repeatedly measuring the intensity of a magnetic field in three-axis direction indoors while a position estimation object having a magnetic sensor moves from a ns-th position to a ne-th position indoors; a rotation change calculation unit (122) which calculates, on the basis of the target magnetic pattern, a target magnetic pattern for each rotation amount, which indicates a simulation result obtained by rotating the target magnetic pattern around the vertical axis by a predetermined rotation amount, for each rotation amount; an alignment data generation unit (123) which generates target alignment data in which the target magnetic pattern for each rotation amount for a rotation amount satisfying a first condition is arranged at the top, and the target magnetic patterns for other rotation amounts are arranged in order of rotation amount; and an estimation unit (124) which inputs data pertaining to the target alignment data to an estimation model obtained by machine learning and obtains an estimation result of an indoor position of the position estimation object.

Inventors:
OOSUGI KOUJI (JP)
YAMAGUCHI TASUKU (JP)
Application Number:
JP2019/011462
Publication Date:
February 06, 2020
Filing Date:
March 19, 2019
Export Citation:
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Assignee:
NEC CORP (JP)
International Classes:
G01C21/28; G01R33/02; G05D1/02
Foreign References:
JP2018048967A2018-03-29
JP2016001875A2016-01-07
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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