Method of beacon-based positioning system
US11567158B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2020 |
| Grant date | Jan 31, 2023 |
| Priority date | — |
| Expiry date | Feb 10, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W16/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a beacon-based positioning system. A beacon position in which a beacon is installable is defined in a target space, and a path loss model of radio frequency (RF) signals between all beacon positions and all observation positions of a scanner is determined. Among all possible installation plans for the beacon positions, an installation plan in which different beacon signals, whose RSSIs calculated using the path loss model have significant values, are received in a number greater than or equal to a minimum reference number and a total number of the beacons installed is minimum is determined as an optimal installation plan. The optimization problem of determining the optimal installation plan may be expressed by binary linear programming.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.