INDOOR LOCATION MEASURING DEVICE AND METHOD

WIPO Patent Application WO/2012/008650

A1

The present invention relates to an indoor location measuring device and method using a light emitting diode lighting to which a visible light communication is applied. The indoor location measuring device includes: a light emitting diode lighting (10) receiving and converting a plurality of modulated light emitting diode location signals into an optical signal, and then emitting the converted optical signal; installed dual image sensors (20, 30) being spaced apart from the light emitting diode lighting (10) to receive and convert an optical signal into an electrical signal, and then output the converted electrical signal; a controller (40) receiving and modulating an electrical signal outputted from each of the dual image sensors (20, 30) to acquire location information on a plurality of light emitting diodes (11), and then calculating coordinates of a target location by using the acquired location information on the plurality of light emitting diodes (11). As a result, measurement errors due to interference of an external signal may be prevented to improve measurement precision.

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KIM, Ki Doo (Electrical Engineering, Kookmin University861-1, Jengneung-dong, Seongbuk-gu, Seoul 136-702, 136-702, KR)
김기두 (서울 성북구 정릉동 861-1 국민대학교 전자공학부, 136-702 Seoul, 136-702, KR)
MOHAMMAD, Shaifur Rahman (7-507, Kookmin University861-1, Jengneung-dong, Seongbuk-gu, Seoul 136-702, 136-702, KR)

KR2010/005779

January 19, 2012

August 27, 2010

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KOOKMIN UNIVERSITY INDUSTRY ACADEMY COOPERATION FOUNDATION (Kookmin University, 861-1 Jengneung-dong, Seongbuk-gu, Seoul 136-702, 136-702, KR)
국민대학교산학협력단 (서울 성북구 정릉동 861-1 국민대학교내, 136-702 Seoul, 136-702, KR)
KIM, Ki Doo (Electrical Engineering, Kookmin University861-1, Jengneung-dong, Seongbuk-gu, Seoul 136-702, 136-702, KR)
김기두 (서울 성북구 정릉동 861-1 국민대학교 전자공학부, 136-702 Seoul, 136-702, KR)

G01B11/00; G01D5/26

NAMCHON PATENT & LAW FIRM (#406, Doryeom Bldg60, Doryeom-dong,Jongno-gu, Seoul 110-051, 110-051, KR)

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