Indoor positioning system and method based on geomagnetic signals in combination with computer vision
US10645668B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2019 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | May 24, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30244
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided are an indoor positioning system and method based on geomagnetic signals in combination with computer vision, including: a computer vision positioning module for acquiring a spatial image of a surrounding environment to create computer vision coordinates; a geomagnetic signal positioning module for detecting trajectories of the geomagnetic signals for creating geomagnetic signal coordinates; a map generating module including a database for storing the created computer vision coordinates and the created geomagnetic signal coordinates, and an inertial measurement unit for detecting a current position and a traveling trajectory, to generate a computer vision map and a geomagnetic data map; and a weighting module for calculating a computer vision weight and a geomagnetic signal weight based on the created computer vision coordinates and the created geomagnetic signal coordinates, and inputting the computer vision weight and the geomagnetic signal weight in a weight equation to estimate a present location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.