Wrong-way-travel warning device and wrong-way-travel warning method
US8421648B2 · kind B2 · utility
9Cited by
3References
3Claims
0Family size
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Key dates
| Filing date | Apr 9, 2009 |
| Grant date | Apr 16, 2013 |
| Priority date | — |
| Expiry date | Oct 12, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08G1/166
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wrong-way-travel warning device comprising a vehicle speed detecting part configured to detect a vehicle speed of a vehicle, a part configured to detect a position of the vehicle, an angle detecting part configured to detect an angle of a vehicular longitudinal direction of the vehicle relative to a lane marking if the vehicle speed of the vehicle becomes less than or equal to a predetermined value, and a warning part configured to issue a warning to an occupant if the position of the vehicle is on a main lane of a highway and if the angle becomes about 90 degrees, is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.