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US 12,742,848 B2Granted
Beacon-based location detection
AssigneeHoffmann-La Roche Inc.
InventorsChristopher Hughes Chatham, Joerg Felix Hipp, Lito Kriara, Michael Lindemann, Florian Lipsmeier, David Nobbs, David Alexander Slater
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Abstract
Methods and systems for determining a location of an individual in a home, business, structure, or other finite amount of space using one or more beacons.
Claims15
A method for detecting a location of a receiving device at a defined point in time, said method comprising:
- for each of a plurality of beacons, wherein each of the plurality of beacons is associated with a different room of a structure:
- obtaining a raw beacon signal;
- resampling the raw beacon signal to a frequency common to all of the plurality of beacons;
- interpolating, in missing signal time gaps below a predefined threshold, the resampled beacon signal;
- populating the missing signal time gaps meeting or above the predefined threshold;
- smoothing the interpolated and populated beacon signal;
- determining, for the smoothed beacon signal, a weight within a predefined range;
- computing and smoothing the smoothed beacon signal derivative;
- determining, among the plurality of smoothed beacon signals, the smoothed beacon signal having the maximum weight and the maximum signal amplitude at the defined point in time;
- and
- identifying the location of the receiving device at the defined point in time as the room associated with the determined beacon signal.
8 more elements
Dependencies are inferred from the claim text.