Traffic-information distribution method and on-vehicle navigation apparatus

• US 20030236613A1
• Filed: 03/17/2003
• Published: 12/25/2003
• Est. Priority Date: 03/26/2002
• Status: Active Grant

• Current Assignee: Alpine Electronics Incorporated (Alps Alpine Co., Ltd.)
• Original Assignee: Alpine Electronics Incorporated (Alps Alpine Co., Ltd.)
• Inventors: Nakamura, Kazuo, Satoh, Hiroyuki
• Granted Patent: US 6,859,720 B2
• Time in Patent Office: Days
• US Class Current: 701/200
• CPC Class Codes: G01C 21/26 specially adapted for navigation in a road network
• CPC Class Codes: G08G 1/096811 where the route is computed offboard
• CPC Class Codes: G08G 1/096816 where the complete route is transmitted to the vehicle at once
• CPC Class Codes: G08G 1/096838 where the user preferences are taken into account or the user selects one route out of a plurality
• CPC Class Codes: G08G 1/096866 where the complete route is shown to the driver
• CPC Class Codes: G08G 1/096872 where instructions are given per voice
• CPC Class Codes: G08G 1/096888 where input information is obtained using learning systems, e.g. history databases

Abstract

An information distribution center constantly obtains the latest traffic information from a traffic information center. A user registers one or more routes at the information distribution center in advance. A navigation apparatus accesses the information distribution center using a mobile communication device to request distribution of traffic information relating to a route registered at the information distribution center. In response to the request from the navigation apparatus, the information distribution center sends traffic information relating to the relevant route to the navigation apparatus.

Claims

1. A traffic-information distribution method for distributing traffic information from an information distribution center to a navigation apparatus mounted in a vehicle, the traffic-information distribution method comprising:

allowing a user of the navigation apparatus to register one or more routes at the information distribution center;

allowing the navigation apparatus to access the information distribution center using a communication link to request distribution of traffic information relating to one or more routes registered at the information distribution center; and

allowing the information distribution center to send traffic information relating to the one or more routes to the navigation apparatus in response to the request from the navigation apparatus.

2. A traffic-information distribution method according to claim 1, wherein, when a starting point and a destination are set, the navigation apparatus checks whether a route with the same starting point and destination has been registered at the information distribution center, and requests the information distribution center to distribute traffic information relating to the relevant route when a route with the same starting point and destination has been registered.

3. A traffic-information distribution method according to claim 1, wherein the traffic information includes at least one of congestion data and traffic-regulation data.

4. A traffic-information distribution method according to claim 1, wherein each of the one or more routes is a route that is set by the user by specifying a destination and an intermediate point.

5. A traffic-information distribution method according to claim 1, wherein the navigation apparatus registers a route ID for identifying each of the one or more routes, together with the one or more routes, at the information distribution center.

6. A traffic-information distribution method according to claim 1, wherein the navigation apparatus registers a user ID for identifying the user, together with the one or more routes, at the information distribution center.

7. A traffic-information distribution method according to claim 1, wherein the navigation apparatus specifies a route ID and sends the route ID to the information distribution center, and receives traffic information relating to a route associated with the specified route ID from the information distribution center.

8. A traffic-information distribution method according to claim 1, wherein the navigation apparatus receives and displays data regarding an estimated time of arrival for a specified route.

9. A traffic-information distribution method according to claim 1, wherein the information distribution center allows registration of more than one route with the same starting point and destination.

10. A traffic-information distribution method according to claim 1, wherein the information distribution center extracts traffic information relating to a specified route and sends the traffic information to the navigation apparatus.

11. A traffic-information distribution method according to claim 1, wherein the information distribution center calculates, using traffic information, an estimated time of arrival at a destination of a specified route, and sends the estimated time of arrival to the navigation apparatus.

12. A traffic-information distribution method according to claim 1, wherein the information distribution center permits access when a user ID transmitted from the navigation apparatus has been registered in advance while not permitting access when the user ID has not been registered.

13. A traffic-information distribution method according to claim 1, wherein the information distribution center identifies a registered route based on a user ID and a route ID transmitted from the navigation apparatus.

14. An on-vehicle navigation apparatus used in a vehicle to obtain traffic information from an information distribution center external to the vehicle, the on-vehicle navigation apparatus comprising:

map-data storage means for storing map data;

vehicle-position detection means for detecting a current position of the vehicle;

route storage means for storing one or more routes;

registration means for registering a desired route among the one or more routes stored in the route storage means at the information distribution center using mobile communication means; and

control means for checking the route storage means, when a starting point and a destination are set, to determine whether a route with the same starting point and destination has been registered at the information distribution center, and, when it is determined that the route has been registered at the information distribution center, requesting the information distribution center, using the mobile communication means, to distribute traffic information relating to the route.

15. An on-vehicle navigation apparatus according to claim 14, wherein the mobile communication means is a phone installed in the vehicle.