Indoor positioning system
AssigneeIDEAL Industries Lighting LLC
InventorRonald W. Bessems
Life of this patent
Estimating the term…
Abstract
A method of operating an indoor location services system includes providing a calibration beacon signal from a calibration device at a number of calibration locations, measuring a received signal strength of the calibration beacon signal at each one of a number of receivers for each one of the number of calibration locations, measuring a received signal strength of a beacon signal provided by a locatable device at each one of the receivers, and estimating a location of the locatable device based on the received signal strength of the beacon signal at each one of the receivers, the received signal strength of the calibration beacon signal at each one of the receivers for each one of the calibration locations, and a location of each one of the receivers.
Claims20
A method comprising:
- providing a calibration beacon signal from a calibration device;
- measuring a signal strength of the calibration beacon signal at each one of a plurality of receivers;
- measuring a signal strength of a beacon signal provided by a device at each one of the plurality of receivers;
- and
- estimating a location of the device based on the signal strength of the beacon signal at each one of the plurality of receivers and the signal strength of the calibration beacon signal at each one of the plurality of receivers.
An indoor location services system comprising:
- a plurality of receivers, each configured to:
- measure a signal strength of a calibration beacon signal and provide signal strength measurements of the calibration beacon signal;
- and
- measure a signal strength of a beacon signal provided from a device and provide signal strength measurements of the beacon signal;
- a calibration device configured to provide the calibration beacon signal;
- and
- an indoor location services module configured to estimate a location of the device based on the signal strength measurements of the beacon signal at each of the plurality of receivers and the signal strength measurements of the calibration beacon signal at each of the plurality of receivers.
Dependencies are inferred from the claim text.