Car navigation device
First Claim
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1. A car navigation device provided in a vehicle, the car navigation device comprising:
- a travel direction designating unit that designates a travel direction of a travel lane on a road where the vehicle travels;
a position detecting unit that detects a current position of the vehicle;
a road data storing unit that stores road data;
a route setting unit that sets a route from the detected current position to a destination based on the road data; and
a travel direction determining unit that determines whether the designated travel direction matches with an on-route travel direction that is a travel direction in line with the set route, wherein a route guidance is performed based on a result determined by the travel direction determining unit.
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Abstract
A travel direction designating unit designates a travel direction of a travel lane where a subject vehicle travels, by using an image of a paint photographed by an in-vehicle camera. On the other hand, a travel direction extracting unit extracts a travel direction in which the subject vehicle should travel in line with a route to a destination from the current position of the subject vehicle. Further, a determining unit determines whether the extracted travel direction in line with the route matches with the designated travel direction. It is thereby determined whether the subject vehicle travels towards a proper road.
54 Citations
23 Claims
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1. A car navigation device provided in a vehicle, the car navigation device comprising:
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a travel direction designating unit that designates a travel direction of a travel lane on a road where the vehicle travels;
a position detecting unit that detects a current position of the vehicle;
a road data storing unit that stores road data;
a route setting unit that sets a route from the detected current position to a destination based on the road data; and
a travel direction determining unit that determines whether the designated travel direction matches with an on-route travel direction that is a travel direction in line with the set route, wherein a route guidance is performed based on a result determined by the travel direction determining unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification