Method and apparatus of road location inference for moving object
US9494694B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2015 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Dec 9, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/396
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus of location sequence inferences for moving objects traveling along a path. The method and apparatus primarily concerns determining the location of a moving vehicle on a roadway in a roadway network. The inputs to the system include: raw GPS tracking sequence with timestamp, trajectory of the moving object inferred by map matching, accurate speed sequence from a reliable device, e.g. OBD (On-Board Diagnostics is an automotive term referring to a vehicle's self-diagnostic and reporting capability), historical map matching results and historical locations sequence inference results. The output of the system is a sequence of more accurate location (on road segments) sequences than raw GPS locations and map matching results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.