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1. JP2018048967 - CREATION METHOD OF TERRESTRIAL MAGNETISM MAP FOR POSITIONING, POSITION MEASURING METHOD, EXTERNAL FACTORIAL NOISE MEASURING METHOD, AND CREATION SYSTEM OF TERRESTRIAL MAGNETISM MAP FOR POSITIONING

Office Japan
Application Number 2016185776
Application Date 23.09.2016
Publication Number 2018048967
Publication Date 29.03.2018
Publication Kind A
IPC
G01C 21/28
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/-G01C19/104
26specially adapted for navigation in a road network
28with correlation of data from several navigational instruments
G01C 21/08
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/-G01C19/104
04by terrestrial means
08involving use of the magnetic field of the earth
CPC
G01C 17/30
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
17Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
02Magnetic compasses
28Electromagnetic compasses
30Earth-inductor compasses
G01C 21/08
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
04by terrestrial means
08involving use of the magnetic field of the earth
G01C 21/28
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
21Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
26specially adapted for navigation in a road network
28with correlation of data from several navigational instruments
Applicants NEC COMMUN SYST LTD
日本電気通信システム株式会社
Inventors HASEGAWA TAKAHIRO
長谷川 貴宏
IWAI MASAHITO
岩井 優仁
TANIGAMI TOSHIAKI
谷神 敏明
TAKAOKA MASANORI
高岡 真則
ITO TETSUYA
伊藤 哲也
Agents 加藤 朝道
内田 潔人
青木 充
樋口 高年
▲高▼橋 幹夫
Title
(EN) CREATION METHOD OF TERRESTRIAL MAGNETISM MAP FOR POSITIONING, POSITION MEASURING METHOD, EXTERNAL FACTORIAL NOISE MEASURING METHOD, AND CREATION SYSTEM OF TERRESTRIAL MAGNETISM MAP FOR POSITIONING
(JA) 測位用分類器の作成方法、位置測定方法、外的要因ノイズ特定方法及び測位用分類器の作成システム
Abstract
(EN)

PROBLEM TO BE SOLVED: To improve accuracy of positioning using terrestrial magnetism.

SOLUTION: Terrestrial magnetism in a positioning area is measured, and a positioning terrestrial magnetism map in which a positioning path and a terrestrial magnetism pattern are correlated with each other is created. A prescribed external factorial noise is added the terrestrial magnetism pattern in the positioning terrestrial magnetism map, to thereby produce a terrestrial magnetism map for learning. A sorter is created by performing machine learning by using the terrestrial magnetism map for learning to which the external factorial noise is added.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2018,JPO&INPIT

(JA)


【課題】地磁気を用いた測位の精度向上。
【解決手段】測位エリアの地磁気を計測し、測位パスと、地磁気パターンとを対応付けた測位地磁気マップを作成する。前記測位地磁気マップの地磁気パターンに所定の外的要因ノイズを付加して、学習用の地磁気マップを生成する。前記外的要因ノイズが付加された前記学習用の地磁気マップを用いて、機械学習を行って分類器を作成する。
【選択図】図1

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