WO2008099390A3 - Indoor location determination - Google Patents

Indoor location determination Download PDF

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Publication number
WO2008099390A3
WO2008099390A3 PCT/IL2008/000183 IL2008000183W WO2008099390A3 WO 2008099390 A3 WO2008099390 A3 WO 2008099390A3 IL 2008000183 W IL2008000183 W IL 2008000183W WO 2008099390 A3 WO2008099390 A3 WO 2008099390A3
Authority
WO
WIPO (PCT)
Prior art keywords
indoor environment
transmitter
location
location determination
triangulation
Prior art date
Application number
PCT/IL2008/000183
Other languages
French (fr)
Other versions
WO2008099390A2 (en
Inventor
Isaac Shapira
Ofer Saban
Yehuda Holtzman
Yair Shapira
Yair Oren
Original Assignee
Mobileaccess Networks Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mobileaccess Networks Ltd. filed Critical Mobileaccess Networks Ltd.
Publication of WO2008099390A2 publication Critical patent/WO2008099390A2/en
Publication of WO2008099390A3 publication Critical patent/WO2008099390A3/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/04Position of source determined by a plurality of spaced direction-finders
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S3/00Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/023Monitoring or calibrating
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0252Radio frequency fingerprinting
    • G01S5/02521Radio frequency fingerprinting using a radio-map

Abstract

A tentative location of a transmitter in an indoor environment is determined by triangulation, using at least two direction finders. The tentative location is made more accurate by performing at least one added action selected from the following: checking the likelihood that the tentative location is an accurate location by comparing measured transmitter signal strengths with calculated signal strengths, using a known indoor environment structure, using a record of the transmitter movement through the indoor environment for determining whether the transmitter is located in an obscured area of the indoor environment or performing an alignment procedure on the antennas to improve the triangulation.
PCT/IL2008/000183 2007-02-12 2008-02-12 Indoor location determination WO2008099390A2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US88930607P 2007-02-12 2007-02-12
US60/889,306 2007-02-12
US12/028,842 US20080191941A1 (en) 2007-02-12 2008-02-11 Indoor location determination

Publications (2)

Publication Number Publication Date
WO2008099390A2 WO2008099390A2 (en) 2008-08-21
WO2008099390A3 true WO2008099390A3 (en) 2010-02-25

Family

ID=66810614

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2008/000183 WO2008099390A2 (en) 2007-02-12 2008-02-12 Indoor location determination

Country Status (2)

Country Link
US (1) US20080191941A1 (en)
WO (1) WO2008099390A2 (en)

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US9185674B2 (en) 2010-08-09 2015-11-10 Corning Cable Systems Llc Apparatuses, systems, and methods for determining location of a mobile device(s) in a distributed antenna system(s)

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US10215835B1 (en) * 2015-08-26 2019-02-26 L-3 Communications Services, Inc. Estimating location of source of signal of interest
US10264580B2 (en) 2015-09-07 2019-04-16 Mediatek Inc. HE SIG B common field formats and indication
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US10187124B2 (en) 2015-10-01 2019-01-22 Mediatek Inc Beam-change indication for channel estimation enhancement
US10211948B2 (en) 2015-10-12 2019-02-19 Mediatek Inc. LDPC tone mapping schemes for dual-sub-carrier modulation in WLAN
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US10705179B2 (en) 2016-04-22 2020-07-07 Tandemlaunch Device-free subject localization methods and systems using wireless signals
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8644844B2 (en) 2007-12-20 2014-02-04 Corning Mobileaccess Ltd. Extending outdoor location based services and applications into enclosed areas
US8983301B2 (en) 2010-03-31 2015-03-17 Corning Optical Communications LLC Localization services in optical fiber-based distributed communications components and systems, and related methods
US9185674B2 (en) 2010-08-09 2015-11-10 Corning Cable Systems Llc Apparatuses, systems, and methods for determining location of a mobile device(s) in a distributed antenna system(s)
US9184843B2 (en) 2011-04-29 2015-11-10 Corning Optical Communications LLC Determining propagation delay of communications in distributed antenna systems, and related components, systems, and methods
US9077321B2 (en) 2013-10-23 2015-07-07 Corning Optical Communications Wireless Ltd. Variable amplitude signal generators for generating a sinusoidal signal having limited direct current (DC) offset variation, and related devices, systems, and methods

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Publication number Publication date
WO2008099390A2 (en) 2008-08-21
US20080191941A1 (en) 2008-08-14

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