Map matching method for vehicle safety warning system
US8489316B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2012 |
| Grant date | Jul 16, 2013 |
| Priority date | — |
| Expiry date | Jun 28, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2556/50
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A map matching method for a vehicle safety warning system (VSWS) is provided. The method includes the steps of a) determining if intelligent transportation system (ITS) map data is available, b) determining a vehicle location and a vehicle heading, c) determining an envelope area around a road feature defined by the ITS map data, d) determining a segment heading for a segment of the road feature, e) determining a separation distance between the vehicle location and the segment if the vehicle location is located within the envelope area, the segment heading is substantially similar to the vehicle heading, and optionally, the segment elevation is substantially similar to the vehicle elevation, and f) map matching the vehicle location to the segment if the separation distance is less than a threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.