Method and system for indoor positioning
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United States of America Patent
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Mar 19, 2013
Grant Date -
Apr 21, 2011
app pub date -
Dec 4, 2009
filing date -
Oct 20, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and a system for indoor positioning are provided. In the present method, a default positioning weight is defined at first. Then, a plurality of neighboring ranging devices near a target device is obtained from all wireless ranging devices deployed in an indoor space, and a current positioning weight of each of the neighboring ranging devices is calculated. Next, the current positioning weight of each of the neighboring ranging devices is respectively compared with the default positioning weight, so as to obtain a plurality of reference ranging devices from the neighboring ranging devices. After calculating at least one candidate coordinate according to a deploy coordinate of each of the reference ranging devices, a positioned coordinate represents the current location of the target device is estimated according to the at least one candidate coordinate.
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