Navigation apparatus displaying information related to target intersection
First Claim
1. A navigation apparatus comprising:
- a host vehicle location acquisition unit configured to acquire a current location of a host vehicle;
a route guidance unit configured to perform a route guidance process for guiding the host vehicle along a guidance route from the current location of the host vehicle to a destination based on the current location of the host vehicle and map data indicative of road connections, wherein the current location of the host vehicle is acquired by the host vehicle location acquisition unit;
a display control unit configured to control a display of an intersection guidance image, wherein the intersection guidance image provides a guidance on an intersection to be possibly travelled by the host vehicle;
a sign image acquisition unit configured to acquire a direction sign image, wherein the direction sign image is an image of a direction sign that indicates leading directions of roads connected to the intersection; and
an intersection enlarged view acquisition unit configured to acquire an intersection enlarged view, wherein the intersection enlarged view is an image providing a guidance on a traveling direction of the host vehicle at a target intersection located in forward direction of the host vehicle along the guidance route, the intersection enlarged view includes symbols indicative of facilities serving as landmarks of the target intersection,the display control unit displays, as the intersection guidance image, a direction sign image corresponding to the target intersection prior to the intersection enlarged view of the target intersection during the route guidance process which is performed by the route guidance unit,during the route guidance process which is performed by the route guidance unit, the display control unit;
displays the intersection enlarged view as the intersection guidance image when a remaining distance between the host vehicle and the target intersection is within an enlarged view display distance; and
displays the direction sign image corresponding to the target intersection as the intersection guidance image while the host vehicle travels toward the target intersection within a segment defined between a point prior to an installation location of a direction sign of the target intersection by a sign display distance and a point prior to the target intersection by the enlarged view display distance, andthe sign display distance and the enlarged view display distance are preliminarily set so that the sign display distance is longer than the enlarged view display distance.
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Accused Products
Abstract
The present disclosure provides a navigation apparatus that is capable of switching between the display of a direction sign image and the display of an enlarged view of an intersection and reducing an erroneous recognition of a target intersection made by a driver. The navigation apparatus displays the direction sign image related to the target intersection when a distance between the host vehicle and an installation location of the direction sign is within a sign display distance. The navigation apparatus displays an intersection enlarged view of the target intersection when a distance between the host vehicle and the target intersection is within an enlarged view display distance, which is set shorter than the sign display distance.
39 Citations
5 Claims
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1. A navigation apparatus comprising:
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a host vehicle location acquisition unit configured to acquire a current location of a host vehicle; a route guidance unit configured to perform a route guidance process for guiding the host vehicle along a guidance route from the current location of the host vehicle to a destination based on the current location of the host vehicle and map data indicative of road connections, wherein the current location of the host vehicle is acquired by the host vehicle location acquisition unit; a display control unit configured to control a display of an intersection guidance image, wherein the intersection guidance image provides a guidance on an intersection to be possibly travelled by the host vehicle; a sign image acquisition unit configured to acquire a direction sign image, wherein the direction sign image is an image of a direction sign that indicates leading directions of roads connected to the intersection; and an intersection enlarged view acquisition unit configured to acquire an intersection enlarged view, wherein the intersection enlarged view is an image providing a guidance on a traveling direction of the host vehicle at a target intersection located in forward direction of the host vehicle along the guidance route, the intersection enlarged view includes symbols indicative of facilities serving as landmarks of the target intersection, the display control unit displays, as the intersection guidance image, a direction sign image corresponding to the target intersection prior to the intersection enlarged view of the target intersection during the route guidance process which is performed by the route guidance unit, during the route guidance process which is performed by the route guidance unit, the display control unit; displays the intersection enlarged view as the intersection guidance image when a remaining distance between the host vehicle and the target intersection is within an enlarged view display distance; and displays the direction sign image corresponding to the target intersection as the intersection guidance image while the host vehicle travels toward the target intersection within a segment defined between a point prior to an installation location of a direction sign of the target intersection by a sign display distance and a point prior to the target intersection by the enlarged view display distance, and the sign display distance and the enlarged view display distance are preliminarily set so that the sign display distance is longer than the enlarged view display distance. - View Dependent Claims (2)
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3. A navigation apparatus comprising:
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a host vehicle location acquisition unit configured to acquire a current location of a host vehicle; a route guidance unit configured to perform a route guidance process for guiding the host vehicle along a guidance route from the current location of the host vehicle to a destination based on the current location of the host vehicle and map data indicative of road connections, wherein the current location of the host vehicle is acquired by the host vehicle location acquisition unit; a display control unit configured to control a display of an intersection guidance image, wherein the intersection guidance image provides a guidance on an intersection to be possibly travelled by the host vehicle; a sign image acquisition unit configured to acquire a direction sign image, wherein the direction sign image is an image of a direction sign that indicates leading directions of roads connected to the intersection; and an intersection enlarged view acquisition unit configured to acquire an intersection enlarged view, wherein the intersection enlarged view is an image providing a guidance on a traveling direction of the host vehicle at a target intersection located in forward direction of the host vehicle along the guidance route, the intersection enlarged view includes symbols indicative of facilities serving as landmarks of the target intersection, the display control unit displays, as the intersection guidance image, a direction sign image corresponding to the target intersection prior to the intersection enlarged view of the target intersection during the route guidance process which is performed by the route guidance unit, during the route guidance process which is performed by the route guidance unit, the display control unit controls the intersection guidance image to be displayed in compliance with; a first rule under which the intersection enlarged view is displayed as the intersection guidance image when a distance between the current location of the host vehicle and the target intersection is within an enlarged view display distance; and a second rule under which the direction sign image is displayed as the intersection guidance image while the host vehicle travels toward the target intersection within a segment defined between a point prior to an installation location of a direction sign of the target intersection by a sign display distance and a point where the direction sign of the target intersection is installed, the sign display distance and the enlarged view display distance are preliminarily set so that the sign display distance is longer than the enlarged view display distance, and in a situation where the intersection enlarged view needs to be displayed in compliance with the first rule and simultaneously the direction sign image needs to be displayed in compliance with the second rule, the display control unit displays the intersection guidance image in compliance with the first rule with a higher priority. - View Dependent Claims (4, 5)
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Specification