Method and apparatus for optimized indoor position estimation
US9215562B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2014 |
| Grant date | Dec 15, 2015 |
| Priority date | — |
| Expiry date | Jul 28, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/023
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The disclosure relates to a method, apparatus and system for optimized indoor position estimation. Specifically, the disclosure relates to indoor position estimation by considering the likelihood that an access point may be an outlier. In one embodiment, the disclosure relates to a system to determine a device location. The system includes one or more antennas; a radio in communication with the at least one or more antennas; a processor to communicate with radio, the processor configured to: measure a distance from the device to a plurality of access points (APs); define a plurality of locations and calculating a distance from each of the plurality of locations to each of the plurality of APs; calculate a measurement error for each of the plurality of the calculated distances; for each location, determine a probability of measurement error as a function of both presence and absence of an outlier AP; for each location, sum the probability of measurement errors for the plurality of APs; and select the location with the highest probability of measurement error sum as an estimated device location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.