Method for determining the length of the route travelled by a vehicle
US8972173B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2011 |
| Grant date | Mar 3, 2015 |
| Priority date | — |
| Expiry date | Jun 2, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B15/063
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining the length of the route travelled by a vehicle using a position measuring device that records positions of the vehicle and a digital road map, which is composed of road segments of known segment lengths. The method including recording positions of the vehicle on the route by means of the position measuring device, matching the recorded vehicle positions to a sequence of road segments, and determining the route length from the segment lengths of these road segments, wherein from the angle between at least two consecutive road segments and an assumed road width of the two road segments, a turn-off route of the vehicle from the one road segment into the other road segment is calculated. The calculated turn-off route is taken into consideration in the determination of the route length.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.