Method for determining the length of the route travelled by a vehicle

摘要

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.

主权项

1. A computer implemented method for determining a length of a route travelled by a vehicle using a position measuring device that records positions of the vehicle, and a digital road map including road segments of known segment lengths, the method comprising:
recording positions of the vehicle on the route by the position measuring device; matching the recorded vehicle positions to a sequence of road segments travelled by the vehicle, by a processor; calculating by a processor, from an angle between two consecutive travelled road segments of said sequence of road segments and an assumed road width of the two consecutive travelled road segments, a turn-off route length travelled by the vehicle from the first consecutive travelled road segment into the second consecutive travelled road segment of the two consecutive travelled road segments; and determining the length of the route travelled by the vehicle from segment lengths of the sequence of road segments travelled by the vehicle, and the calculated turn-off route length travelled by the vehicle.