Navigation device and road lane recognition method thereof
US8204685B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 29, 2011 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | May 31, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/167
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided is a road lane recognition method in a navigation device, which can differentiate a road lane occupied by a vehicle running on bidirectional lanes, including estimating a vehicle location based on satellite signal received from a carrier-based navigation satellite system and correction information received from a master station; determining a drive direction of the vehicle using vehicle location information and road lane information stored in a digital map; for each road lane in the road lane information, calculating a distance between a center line of the respective road lane and the vehicle location using the vehicle location information and the road lane information; and determining the road lane having a minimum value among the calculated distances as a drive lane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.