Method of Positioning Using Wireless Signals and Inertial Measurement Units, Electronic Device, and Positioning System Using the Same Method
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United States of America Patent
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Issued Date -
Jul 11, 2013
app pub date -
Jan 9, 2013
filing date -
Jan 9, 2012
priority date (Note) -
Abandoned
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Abstract
A method of positioning using wireless signals and an inertial measurement unit is provided. The method includes the following steps: providing a wireless signal strength data base, wherein the wireless signal strength database gathers a radio map and a plurality of wireless signal strength information corresponding to a plurality of orientations at all grid positions on the radio map; using the inertial measurement unit to detect a current orientation at a current position where the electronic device is located; detecting a current wireless signal strength information of the electronic device corresponding to the current orientation at the current position; and determining the current position according to the current orientation, the current wireless signal strength information, and the wireless signal strength data base.
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