Automobile navigation apparatus and method for setting detours in the same
First Claim
1. An automobile navigating apparatus for a vehicle, said apparatus comprising:
- map storage means for storing link information of links which form a map;
route setting means for setting a destination route from a starting point to a destination based on said link information, said apparatus performing navigation based on said set destination route;
directing means for directing setting of a detour of said destination route at a user-chosen timing; and
route resetting means for resetting said destination route from a present position of a vehicle to said destination during direction of setting of said detour by said directing means,wherein said route resetting means has identifying means for identifying a link along said destination route within a predetermined range from said present position of said vehicle to lower an evaluation value assigned to said identified link.
1 Assignment
0 Petitions
Accused Products
Abstract
An automobile navigating apparatus capable of setting a detour for a route to a desired destination. A memory device stores link information about links that constitute a map. Based on the link information, a route calculating section sets a route running from a start point to a desired destination by using evaluation values assigned to the links. The route thus set is shown on a display device in a highlighted manner. At the same time, directions to the desired destination along the route are instructed verbally. When a detour switch is operated, a detour for the route is calculated by a detour calculating section. In the detour calculation, the detour calculating section lowers the evaluation value for the link concerned along the previously set route to prevent the same from being set again.
-
Citations
17 Claims
-
1. An automobile navigating apparatus for a vehicle, said apparatus comprising:
-
map storage means for storing link information of links which form a map; route setting means for setting a destination route from a starting point to a destination based on said link information, said apparatus performing navigation based on said set destination route; directing means for directing setting of a detour of said destination route at a user-chosen timing; and route resetting means for resetting said destination route from a present position of a vehicle to said destination during direction of setting of said detour by said directing means, wherein said route resetting means has identifying means for identifying a link along said destination route within a predetermined range from said present position of said vehicle to lower an evaluation value assigned to said identified link. - View Dependent Claims (2, 3, 4)
-
-
5. An automobile navigating apparatus for a vehicle, said apparatus comprising:
-
map storage means for storing link information of links which form a map; route setting means for setting a destination route from a starting point to a destination based on said link information, said apparatus device performing navigation based on said set destination route; directing means for directing setting of a detour of said destination route at a user-chosen timing; and route resetting means for resetting said destination route from a present position of a vehicle to said destination during direction of setting of said detour by said directing means, wherein said map storage means also stores link information about a link that goes by way of at least one of a service area and a parking area and said route resetting means has link identifying means for identifying a link that goes by way of at least one of said service area and said parking area to lower an evaluation value for said identified link.
-
-
6. An automobile navigating apparatus for an automobile, said automobile navigating apparatus comprising:
-
map storage means for storing link information about links constituting a map; route setting means for setting a route from a start point to a desired destination by using evaluation values assigned to said links based on said link information to navigate an automobile along said route; detecting means for detecting a timing at which a detour for said route is set; and route resetting means for newly setting a route from a current position of said automobile to said desired destination by lowering evaluation values for links along said route to said desired destination; wherein said route resetting means has identifying means for identifying a link along said route within a predetermined range from said current position of said automobile to lower an evaluation value assigned to said identified link; and said map storage means also stores link information about a link that goes by way of at least one of a service area and a parking area and said route resetting means has link identifying means for identifying a link that goes by way of at least one of said service area and said parking area to lower an evaluation value for said identified link. - View Dependent Claims (7, 8, 9, 10)
-
-
11. A method of setting a detour in a vehicle navigation system using map link information to determine a path of travel for a vehicle, said method comprising the steps of:
-
determining a first route based on said map link information; setting said first route as a path of travel; determining, based on said map link information, a forward point in a forward direction on said first route which satisfies predetermined criteria; determining that a current point of said vehicle is one of before a passing point and after said passing point; modifying evaluation criteria associated with map link information in said first route between said current point in said first route and said forward point; determining a second route by determining a route from said current point to said passing point when said current point is before said passing point, and determining a route from said current point to a destination point when said current point is after said passing point. - View Dependent Claims (12, 13, 14, 15)
-
-
16. A method of setting a detour in a vehicle navigation system using map link information to determine a path of travel for a vehicle, said method comprising the steps of:
-
determining a first route based on said map link information; setting said first route as a path of travel; determining, based on said map link information, a forward point in a forward direction on said first route which satisfies predetermined criteria; modifying evaluation criteria associated with map link information in said first route between a current position of said vehicle in said first route and said forward point by lowering evaluation values of points identified as one of a service area and a parking area; and
determining a second route using said modified evaluation criteria.
-
-
17. A method of setting a detour in a vehicle navigation system using map link information to determine a path of travel for a vehicle, said method comprising the steps of:
-
determining a first route based on said map link information; setting said first route as a path of travel; determining, based on said map link information, a forward point in a forward direction on said first route which satisfies predetermined criteria; modifying evaluation criteria associated with map link information in said first route between a current position of said vehicle in said first route and said forward point; and determining a second route using said modified evaluation criteria; calculating a degree of similarity of said first and second routes; setting said second route as said path of travel when said degree of similarity is below a predetermined level; and determining a failure when said degree of similarity is not above said predetermined level.
-
Specification