| 摘要 |
PROBLEM TO BE SOLVED: To provide a navigation device 20 capable of accurately computing the current vehicle location, even when road data do not include road width or the number of traffic lanes. SOLUTION: This navigation device 20 starts accumulation of the amount of moves of the vehicle in a direction of a predetermined angle to a linking direction, since passing of the vehicle through a predetermined distance in front of a crossing; and when the vehicle turns to the right, the device adds the accumulated amount of moves in the running direction of the vehicle at the current location of the vehicle, after the right turn to the current location of the vehicle. COPYRIGHT: (C)2008,JPO&INPIT |
