System and method for calibration of radio frequency location sensors
US7852205B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 10, 2008 |
| Grant date | Dec 14, 2010 |
| Priority date | — |
| Expiry date | May 20, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B29/24
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method includes receiving, in a scanner, at least one radio-frequency (RF) signal from a sensor proximate to the scanner. The method also includes storing location information, corresponding to a location of the scanner, and signal strength information corresponding to the scanner. The method further includes calibrating location records according to the signal strength information and location information. There is also a system for calibrating location records. The system includes a plurality of sensors each configured to transmit an RF signal. The system also includes a scanner configured to receive at least one RF signal from a sensor proximate to the scanner, store location information corresponding to a location of the scanner, and store signal strength information corresponding to the scanner. The system further includes a location manager configured to receive the stored signal strength information and location information from the scanner and to calibrate location records according to the stored signal strength information and location information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.