GPS map-matching based on space map-matching
US9835460B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2015 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Feb 11, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S19/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An embodiment of the invention provides a method that identifies GPS shifting fields for road segments, the GPS shifting fields including areas around the road segments that include false GPS readings of objects that traveled on the road segments. The GPS shifting fields can be revised with a road segment attribute and/or at a driver preference. The road map network can be partitioned into space units, where the road map network can include at least two GPS readings of the object. For each space unit that includes a road segment, a probability that the object was located on the road segment can be calculated for each road segment based on the GPS readings of the object and the GPS shifting fields. The trajectory of the object can be determined based on the computing of the probabilities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.