Location tracking based on proximity-based ad hoc network

Details Location tracking based on proximity-based ad hoc network Location tracking based on proximity-based ad hoc network

2008-02-08

2011-10-25

Scheibel, Robert (Department: 2467)

Multiplex communications

Network configuration determination

C370S338000, C455S456100

Reexamination Certificate

active

08045482

ABSTRACT:
A system and method is described for constructing a proximity-based ad hoc network among a plurality of sensors and for using such a network to perform location tracking. The system and method uses time-coded data received from each of the sensors to determine a current proximity of each of the sensors to one or more beacons. Then, by leveraging information relating to the effective transmission ranges of the beacons, the system and method determines the relative location of each of the plurality of sensors with respect to other sensors within the plurality of sensors. Where actual (as opposed to relative) location information is available for a particular sensor, it can be used to generate or augment location information associated with other sensors known to be spatially and temporally proximate to the particular sensor. The current location information for each of the sensors is then used in providing location-based services.

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