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1. WO2019057954 - IMPROVED LOCALIZATION OF A MOBILE DEVICE BASED ON IMAGE AND RADIO WORDS

Publication Number WO/2019/057954
Publication Date 28.03.2019
International Application No. PCT/EP2018/075739
International Filing Date 24.09.2018
IPC
G01C 21/20 2006.1
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
20Instruments for performing navigational calculations
CPC
G01C 21/206
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
20Instruments for performing navigational calculations
206specially adapted for indoor navigation
G01S 5/0252
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
5Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
02using radio waves
0252Radio frequency fingerprinting
H04W 4/024
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
4Services specially adapted for wireless communication networks; Facilities therefor
02Services making use of location information
024Guidance services
H04W 4/029
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
4Services specially adapted for wireless communication networks; Facilities therefor
02Services making use of location information
029Location-based management or tracking services
H04W 4/30
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
4Services specially adapted for wireless communication networks; Facilities therefor
30Services specially adapted for particular environments, situations or purposes
H04W 4/33
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
4Services specially adapted for wireless communication networks; Facilities therefor
30Services specially adapted for particular environments, situations or purposes
33for indoor environments, e.g. buildings
Applicants
  • SOFTBANK ROBOTICS EUROPE [FR]/[FR]
  • ARMINES [FR]/[FR]
Inventors
  • NOWAKOWSKI, Mathieu
  • JOLY, Cyril
  • FRES, Scarlett
  • GARCIA, Nicolas
  • MOUTARDE, Fabien
Agents
  • LOUBET, Bruno
  • BELL, Mark
Priority Data
17306252.222.09.2017EP
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED LOCALIZATION OF A MOBILE DEVICE BASED ON IMAGE AND RADIO WORDS
(FR) LOCALISATION AMÉLIORÉE D'UN DISPOSITIF MOBILE SUR LA BASE DE MOTS IMAGE ET RADIO
Abstract
(EN) The invention relates to a mobile device (200) that is able to locate itself in a topological map using a combination of visual and radio information. The mobile device (200) captures an image (310) of its environment, detects receivable radio transmitters (320) and builds an observation vector (330) that defines visual words (331) and radio words (332) that are present at the current location of the mobile device (200). It then compares this observation vector to reference vectors corresponding to reference location and identifies, based on correlations between visual words and radio words, the location of the mobile device (200) among reference locations.
(FR) L'invention concerne un dispositif mobile (200) pouvant se localiser lui-même dans une carte topologique à l'aide d'une combinaison d'informations visuelles et radio. Le dispositif mobile (200) capture une image (310) de son environnement, détecte des émetteurs radio (320) recevables et construit un vecteur d'observation (330) qui définit des mots visuels (331) et des mots radio (332) qui sont présents à l'emplacement actuel du dispositif mobile (200). Il compare ensuite ce vecteur d'observation à des vecteurs de référence correspondant à l'emplacement de référence et identifie, sur la base de corrélations entre des mots visuels et des mots radio, l'emplacement du dispositif mobile (200) parmi des emplacements de référence.
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