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1. WO2022010156 - METHOD FOR CALIBRATING GEOMAGNETIC SENSOR OF ELECTRONIC DEVICE AND ELECTRONIC DEVICE THEREOF

Publication Number WO/2022/010156
Publication Date 13.01.2022
International Application No. PCT/KR2021/008167
International Filing Date 29.06.2021
IPC
G01V 3/38 2006.1
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
3Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
38Processing data, e.g. for analysis, for interpretation or for correction
G01V 3/08 2006.1
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
3Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
08operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
G01P 15/14 2006.1
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
15Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
14by making use of gyroscopes
G01P 15/02 2006.1
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
15Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
02by making use of inertia forces
Applicants
  • 삼성전자 주식회사 SAMSUNG ELECTRONICS CO., LTD. [KR]/[KR]
Inventors
  • 김진익 KIM, Jinik
  • 박남준 PARK, Namjoon
Agents
  • 권혁록 KWON, Hyuk-Rok
  • 이정순 LEE, Jeong-Soon
Priority Data
10-2020-008482209.07.2020KR
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD FOR CALIBRATING GEOMAGNETIC SENSOR OF ELECTRONIC DEVICE AND ELECTRONIC DEVICE THEREOF
(FR) PROCÉDÉ D’ÉTALONNAGE DE CAPTEUR GÉOMAGNÉTIQUE DE DISPOSITIF ÉLECTRONIQUE, ET DISPOSITIF ÉLECTRONIQUE CORRESPONDANT
(KO) 전자 장치의 지자기 센서 보정 방법 및 그 전자 장치
Abstract
(EN) Disclosed is an electronic device comprising: a gyro sensor; an acceleration sensor for outputting acceleration data about motion of the electronic device; a geomagnetic sensor for outputting geomagnetic data about a magnetic field around the electronic device; and a low-power processor electrically connected to the gyro sensor, the acceleration sensor and the geomagnetic sensor. The low-power processor: operates the acceleration sensor while the gyro sensor is deactivated; on the basis of the acceleration data acquired by the acceleration sensor, determines if the motion of the electronic device corresponds to either one of a first motion pattern and a second motion pattern; if the motion corresponds to the first motion pattern, acquires first geomagnetic data at a first frame rate by driving the geomagnetic sensor; if the motion corresponds to the second motion pattern, acquires second geomagnetic data at a second frame rate higher than the first frame rate by driving the geomagnetic sensor; and calibrates the geomagnetic sensor on the basis of the first geomagnetic data or the second geomagnetic data.
(FR) L'invention concerne un dispositif électronique comprenant : un capteur gyroscopique ; un capteur d'accélération permettant de délivrer en sortie des données d'accélération concernant le mouvement du dispositif électronique ; un capteur géomagnétique permettant de délivrer en sortie des données géomagnétiques concernant un champ magnétique autour du dispositif électronique ; et un processeur à faible consommation d'énergie connecté électriquement au capteur gyroscopique, au capteur d'accélération et au capteur géomagnétique. Le processeur à faible consommation d'énergie : actionne le capteur d'accélération tandis que le capteur gyroscopique est désactivé ; sur la base des données d'accélération acquises par le capteur d'accélération, détermine si le mouvement du dispositif électronique correspond soit à un premier motif de mouvement, soit à un second motif de mouvement ; si le mouvement correspond au premier motif de mouvement, acquiert des premières données géomagnétiques à une première fréquence d'image en entraînant le capteur géomagnétique ; si le mouvement correspond au second motif de mouvement, acquiert des secondes données géomagnétiques à une seconde fréquence d'image supérieure à la première fréquence d'image par commande du capteur géomagnétique ; et étalonne le capteur géomagnétique sur la base des premières données géomagnétiques ou des secondes données géomagnétiques.
(KO) 전자 장치에 있어서, 자이로 센서; 상기 전자 장치의 움직임에 대한 가속도 데이터를 출력하는 가속도 센서; 상기 전자 장치 주위의 자기장에 대한 지자기 데이터를 출력하는 지자기 센서; 및 상기 자이로 센서, 상기 가속도 센서, 및 상기 지자기 센서와 전기적으로 연결된 저전력 프로세서를 포함하고, 상기 저전력 프로세서는: 상기 자이로 센서가 비활성화되어 있는 동안 상기 가속도 센서를 작동시키고, 상기 가속도 센서에서 획득된 상기 가속도 데이터에 기반하여 상기 전자 장치의 움직임이 제1 움직임 패턴 및 제2 움직임 패턴 중 어느 하나에 해당하는지 결정하고, 상기 움직임이 제1 움직임 패턴에 해당하는 경우 상기 지자기 센서를 구동하여 제1 프레임 레이트로 제1 지자기 데이터를 획득하고, 상기 움직임이 제2 움직임 패턴에 해당하는 경우 상기 지자기 센서를 구동하여 상기 제1 프레임 레이트 보다 높은 제2 프레임 레이트로 제2 지자기 데이터를 획득하고, 상기 제1 지자기 데이터 또는 상기 제2 지자기 데이터에 기반하여 상기 지자기 센서에 대한 보정을 수행하는, 전자 장치가 개시된다.
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