Method and apparatus for a local positioning system
US9258797B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2014 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Apr 25, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2203/5441
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A local positioning system uses a power delivery network throughout a facility to easily deploy inexpensive electromagnetic receivers for capturing location fingerprints from the transmission of wireless devices. These captured fingerprints are then compared with a database of similar fingerprints compiled from a facility surveying process. Location of the wireless device is inferred from the known location corresponding to that survey-derived fingerprint that is most highly correlated with the fingerprint derived from the wireless device. The known location may then be used to provide a logical mapping of the wireless device within facility floor plans or the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.