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1. (WO2018139772) HIGHLY ACCURATE HYBRID POSITIONING METHOD AND DEVICE ROBUST AGAINST PATH CHANGES
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/139772 International Application No.: PCT/KR2017/015650
Publication Date: 02.08.2018 International Filing Date: 28.12.2017
IPC:
H04W 64/00 (2009.01) ,H04W 88/18 (2009.01) ,G01S 11/06 (2006.01)
Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY[KR/KR]; (Hawolgok-dong)5, Hwarang-ro 14-gil Seongbuk-gu Seoul 02792, KR
Inventors: LEE, Taikjin; KR
KIM, Chulki; KR
RYU, Yongsang; KR
SHIN, Beomju; KR
Agent: LEE, Jang Hyuk; KR
Priority Data:
10-2017-001198825.01.2017KR
10-2017-012403826.09.2017KR
Title (EN) HIGHLY ACCURATE HYBRID POSITIONING METHOD AND DEVICE ROBUST AGAINST PATH CHANGES
(FR) PROCÉDÉ ET DISPOSITIF DE POSITIONNEMENT HYBRIDE DE HAUTE PRÉCISION ROBUSTES VIS-À-VIS DE CHANGEMENTS DE TRAJET
(KO) 경로 변화에 강인한 고정확도의 복합 측위 방법 및 장치
Abstract:
(EN) The present invention relates to a highly accurate hybrid positioning method and device robust against path changes, whereby: a relative position of a mobile node is estimated on the basis of a detection of the movement of the mobile node; an absolute position of the mobile node is estimated on the basis of a variation pattern of at least one signal strength received from at least one fixed node across multiple time points; the accuracy of the absolute position of the mobile node changing according to the moving path of the mobile node is calculated; and the current position of the mobile node is determined from at least one of the estimated relative position and absolute position according to the accuracy of the absolute position of the mobile node. Thus, the position of the mobile node may be accurately estimated even when a wireless environment changes or various paths change, and the position of the mobile node may be accurately estimated across a wide area by using a wireless signal exhibiting almost no change in signal strength.
(FR) La présente invention concerne un procédé et un dispositif de positionnement hybride de haute précision robustes vis-à-vis de changements de trajet, caractérisés par là-même en ce que : une position relative d'un nœud mobile est estimée sur la base d'une détection du mouvement du nœud mobile ; une position absolue du nœud mobile est estimée sur la base d'un motif de variation d'au moins une intensité de signal reçu en provenance d'au moins un nœud fixe à travers de multiples points temporels ; la précision de la position absolue du nœud mobile changeant selon le trajet de déplacement du nœud mobile est calculée ; et la position actuelle du nœud mobile est déterminée à partir de la position relative estimée et/ou de la position absolue en fonction de la précision de la position absolue du nœud mobile. Ainsi, la position du nœud mobile peut être estimée avec précision y compris lorsqu'un environnement sans fil change ou que divers trajets changent, et la position du nœud mobile peut être estimée avec précision sur une large zone au moyen d'un signal sans fil présentant une variation d'intensité du signal quasiment nulle.
(KO) 경로 변화에 강인한 고정확도의 복합 측위 방법 및 장치에 관한 것으로, 이동 노드의 움직임 감지에 기초하여 이동 노드의 상대 위치를 추정하고, 복수의 시점에 걸쳐 적어도 하나의 고정 노드로부터 수신된 적어도 하나의 신호 세기의 변화 패턴에 기초하여 이동 노드의 절대 위치를 추정하고, 이동 노드의 이동 경로를 따라 변화되는 이동 노드의 절대 위치의 정확도를 산출하고, 이동 노드의 절대 위치의 정확도에 따라 이와 같이 추정된 상대 위치와 절대 위치 중 적어도 하나로부터 이동 노드의 현재 위치를 결정함으로써 무선 환경의 변화나 다양한 경로 변화에도 이동 노드의 위치를 정확하게 추정할 수 있으면서 넓은 지역에 걸쳐 신호 세기의 변화가 거의 없는 무선 신호를 이용하여 이동 노드의 위치를 정확하게 추정할 수 있다.
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)