Method and apparatus for distributing or providing rtk positioning correction data using virtual cell
US12066550B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 8, 2021 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Sep 9, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/43
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for generating and distributing GNSS positioning correction data includes dividing a service area into plural virtual cells, locating a virtual RTK reference station in every virtual cell, collectively calculating interpolated correction data for virtual RTK reference stations using correction data of actual RTK reference stations, encoding any combination of correction data into a virtual cell RTK frame, and distributing or providing the virtual cell RTK frame to servers or user devices through networks. Cost-effectiveness of distribution (or service) network can be achieved by means of spatial and/or temporal optimization of correction data with a virtual cell map indicating validities of each virtual cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.