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Title:
SPATIAL LOCATION INDOORS USING STANDARD FLUORESCENT FIXTURES
Document Type and Number:
WIPO Patent Application WO/2017/205020
Kind Code:
A3
Abstract:
A system for identifying the location of the mobile device uses standard fluorescent light fixtures commonly found in indoor environments and detects minor variations in the light output of those fixtures caused by normal manufacturing variation. These variations are catalogued as identifying fingerprints together with location of the light fixtures to provide for navigation.

More Like This:
WO/2020/027950POPULATING CATALOG DATA WITH ITEM PROPERTIES BASED ON SEGMENTATION AND CLASSIFICATION MODELS
Inventors:
ZHANG XINYU (US)
ZHANG CHI (US)
Application Number:
PCT/US2017/030960
Publication Date:
July 26, 2018
Filing Date:
May 04, 2017
Export Citation:
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Assignee:
WISCONSIN ALUMNI RES FOUND (US)
International Classes:
G06K9/46; G06K9/20; H04W4/02; H04W4/024
Domestic Patent References:
WO2015077767A12015-05-28
Foreign References:
US20150153160A12015-06-04
US20140235269A12014-08-21
US20130331037A12013-12-12
US20160054440A12016-02-25
Attorney, Agent or Firm:
BAXTER, Keith, M. (US)
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