Navigation system
First Claim
1. A navigation system comprising:
- a route search means that sets a travel route of a vehicle by executing a route search processing;
a guidance information setting means that sets, on the basis of the travel route, guidance information concerning a first intersection that the vehicle passes, in consideration of the conditions of passage at a second intersection that the vehicle is to pass thereafter; and
an intersection guidance means that communicates the guidance information graphically through a visual display;
wherein the intersection guidance means displays all the lanes at the intersections as intersection guidance information, and further displays with emphasis only the recommended travel lanes.
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Accused Products
Abstract
A guidance information setting unit specifies, during a route guidance operation, a first intersection that the vehicle is about to pass and a second intersection that the vehicle is to pass thereafter, where the vehicle makes a right-turn or a left-turn. Next, the guidance information setting unit sets a recommended travel lane by which the vehicle minimizes the lane change frequency until it reaches the second intersection, and outputs information concerning the recommended travel lane to an intersection guidance unit as the guidance information. The intersection guidance unit produces, as the intersection guidance information concerning the first intersection, drawing data of the intersection guidance information that displays with emphasis the recommended travel lane set by the guidance information setting unit, and displays the data on the screen of a display unit through an image synthesizing unit. As a consequence, the navigation system of the invention ensures an appropriate travel state for the vehicle.
66 Citations
16 Claims
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1. A navigation system comprising:
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a route search means that sets a travel route of a vehicle by executing a route search processing;
a guidance information setting means that sets, on the basis of the travel route, guidance information concerning a first intersection that the vehicle passes, in consideration of the conditions of passage at a second intersection that the vehicle is to pass thereafter; and
an intersection guidance means that communicates the guidance information graphically through a visual display;
wherein the intersection guidance means displays all the lanes at the intersections as intersection guidance information, and further displays with emphasis only the recommended travel lanes.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A navigation system comprising:
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a route search means that sets a travel route of a vehicle by executing a route search processing;
a guidance information setting means that sets, on the basis of the travel route, guidance information concerning a first intersection that the vehicle passes, in consideration of the conditions of passage at a second intersection that the vehicle is to pass thereafter; and
an intersection guidance means that graphically displays the guidance information concerning the first intersection and the guidance information concerning the second intersection with a dislocation of display positions thereof, wherein the intersection guidance means displays the lanes at the intersections as intersection guidance information, and further displays with emphasis only the recommended travel lanes. - View Dependent Claims (11, 12)
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13. A lane guidance method in a navigation system comprising:
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executing a route search to a destination to set a travel route;
setting, on the basis of the travel route, lane guidance information concerning a first intersection that the vehicle is going to pass, in consideration of the conditions of passage at a second intersection that the vehicle is to pass thereafter;
and presenting the lane guidance information graphically through a visual display;
wherein the lane guidance information displays all the lanes at the first intersection and the second intersection, and further displays with emphasis only the recommended travel lanes.- View Dependent Claims (14, 15, 16)
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Specification