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1. (WO2018106072) FOREIGN SUBSTANCE DETECTION METHOD FOR WIRELESS CHARGING AND APPARATUS THEREFOR
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Pub. No.: WO/2018/106072 International Application No.: PCT/KR2017/014417
Publication Date: 14.06.2018 International Filing Date: 08.12.2017
IPC:
H02J 50/60 (2016.01) ,H02J 50/12 (2016.01) ,H02J 7/02 (2006.01)
[IPC code unknown for H02J 50/60][IPC code unknown for H02J 50/12]
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7
Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
02
for charging batteries from ac mains by converters
Applicants:
엘지이노텍(주) LG INNOTEK CO., LTD. [KR/KR]; 서울시 중구 후암로 98 98, Huam-ro Jung-gu Seoul 04637, KR
Inventors:
권용일 KWON, Yong Il; KR
박재희 PARK, Jae Hee; KR
Agent:
이승찬 LEE, Seung Chan; KR
Priority Data:
10-2016-016686608.12.2016KR
Title (EN) FOREIGN SUBSTANCE DETECTION METHOD FOR WIRELESS CHARGING AND APPARATUS THEREFOR
(FR) PROCÉDÉ DE DÉTECTION DE SUBSTANCE ÉTRANGÈRE POUR CHARGE SANS FIL ET APPAREIL ASSOCIÉ
(KO) 무선 충전을 위한 이물질 검출 방법 및 그를 위한 장치
Abstract:
(EN) The present invention relates to a foreign substance detection method, and an apparatus and a system therefor. A foreign substance detection method in a wireless power transmitter, according to an embodiment of the present invention, may comprise the steps of: if an object placed in a charging area is detected, searching for a current peak frequency with a maximum quality factor value in an available frequency band; receiving, from a wireless power receiver, a foreign substance detection state packet including a reference peak frequency; determining a foreign substance detection reference frequency on the basis of the reference peak frequency; and determining whether or not a foreign substance is present by comparing the current peak frequency with the foreign substance detection reference frequency. Therefore, the present invention has an advantage of being capable of detecting a foreign substance more effectively and accurately.
(FR) La présente invention concerne un procédé de détection de substance étrangère, ainsi qu'un appareil et un système associés. Un procédé de détection de substance étrangère dans un émetteur de puissance sans fil, selon un mode de réalisation de la présente invention, peut comprendre les étapes consistant à : si un objet placé dans une zone de charge est détecté, rechercher une fréquence de crête actuelle avec une valeur de facteur de qualité maximale dans une bande de fréquences disponible ; recevoir, en provenance d'un récepteur d'énergie sans fil, un paquet d'état de détection de substance étrangère comprenant une fréquence de crête de référence ; déterminer une fréquence de référence de détection de substance étrangère sur la base de la fréquence de crête de référence ; et déterminer si une substance étrangère est présente ou non en comparant la fréquence de crête actuelle à la fréquence de référence de détection de substance étrangère. Par conséquent, la présente invention présente l'avantage de pouvoir détecter une substance étrangère de manière plus efficace et plus précise.
(KO) 본 발명은 이물질 검출 방법 및 그를 위한 장치 및 시스템에 관한 것으로서, 본 발명의 일 실시예에 따른 무선 전력 송신기에서의 이물질 검출 방법은 충전 영역에 배치된 물체를 감지하면, 가용 주파수 대역 내 품질 인자 값이 최대인 현재 피크 주파수를 탐색하는 단계와 기준 피크 주파수가 포함된 이물질 검출 상태 패킷을 무선 전력 수신기로부터 수신하는 단계와 상기 기준 피크 주파수에 기반하여 이물질 검출 기준 주파수를 결정하는 단계와 상기 현재 피크 주파수와 상기 이물질 검출 기준 주파수를 비교하여 이물질의 존재 여부를 판단하는 단계를 포함할 수 있다. 따라서, 본 발명은 보다 효과적이고 정확하게 이물질을 검출할 수 있는 장점이 있다.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Korean (KO)
Filing Language: Korean (KO)