Systems and methods for graph-based localization and mapping
US10356562B2 · kind B2 · utility
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6References
20Claims
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Key dates
| Filing date | Sep 10, 2018 |
| Grant date | Jul 16, 2019 |
| Priority date | — |
| Expiry date | Sep 10, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W24/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Traces collected by multiple portable devices moving within a geographic area that includes an indoor region, each of the traces including measurements of wireless signals sources at different times by a same device, and at least some of the traces including pseudorange measurements related to distances to respective satellites. Location estimates for the portable devices and the signal sources are generated using graph-based SLAM optimization of the location estimates. More particularly, constraints for the pseudorange measurements are generated and applied for the pseudorange measurements in graph-based SLAM optimization.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.