Wireless device for indoor positioning
US9841507B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2015 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Feb 4, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/46
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wireless device for indoor positioning has a satellite positioning system, a transceiver, a motion measurement system, and a position estimation system. The satellite positioning system is configured to determine a location of the device based on received satellite positioning signals. The wireless local area network transceiver is configured to measure while in the areas of non-reception, signals transmitted by wireless local area network (WLAN) access points (APs). The motion measurement system is configured to measure movement of the wireless device. The position estimation system is configured to determine a reference location, and record measurements of movement. The reference location and the recorded measurements are to be provided to a positioning database that generates a positioning grid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.