CPC G01S 13/04 (2013.01) [G01S 7/412 (2013.01); G01S 11/06 (2013.01); H04B 17/318 (2015.01); H04N 21/4126 (2013.01); H04W 4/80 (2018.02); H04W 64/003 (2013.01)] | 21 Claims |
1. A proximity detection apparatus, the apparatus comprising:
a signal strength value selector to select a portion of a set of signal strength values associated with advertising packets from a device associated with a user, the advertising packets captured by a multi-axis receiver on a plurality of different signal polarizations, the multi-axis receiver to capture first ones of the advertising packets along a first axis polarity, second ones of the advertising packets along a second axis polarity transverse relative to the first axis polarity, and third ones of the advertising packets along a third axis polarity, the third axis polarity is transverse relative to the first axis polarity and the second axis polarity;
a signal strength calculator to calculate a first representative signal strength value based on the selected portion of signal strength values; and
a presence determiner to determine a presence of the user based on whether the first representative signal strength value satisfies a threshold.
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