Sub-room-level indoor location system using power line positioning
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United States of America Patent
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Mar 5, 2013
Grant Date -
Apr 17, 2008
app pub date -
Jun 28, 2007
filing date -
Jun 28, 2006
priority date (Note) -
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Abstract
Disclosed is an indoor location system that uses an electrical power line, power line signal injection devices, and portable position receivers (tags) to generate location data relating to positions of the tags in a structure such as a residence or business. The indoor location system fingerprinting of multiple signals transmitted along the power line to achieve sub-room-level localization of the positioning receivers. Details regarding power line positioning are described along with how it compares favorably to other fingerprinting techniques.
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