METHOD FOR ROUTE PLANNING ON A NAVIGATION SYSTEM INCLUDING POINTS OF INTEREST

• US 20090240429A1
• Filed: 03/19/2008
• Published: 09/24/2009
• Est. Priority Date: 03/19/2008
• Status: Abandoned Application

• Current Assignee: Xanavi Informatics Corporation (Hitachi, Ltd.)
• Original Assignee: Xanavi Informatics Corporation (Hitachi, Ltd.)
• Inventors: Ramaswamy, Deepak, Tanaka, Katsuaki
• Application Number:
  US12/051,314
• Publication Number:
  US 20090240429A1
• Time in Patent Office: Days
• US Class Current: 701/202
• CPC Class Codes: G01C 21/343 Calculating itineraries, i.e. routes leading from a starting point to a series of categorical destinations using a global route restraint, round trips, touristic trips travelling salesman problem G06Q10/04; optimisation of routes G06Q10/047
• CPC Class Codes: G01C 21/3682 output of POI information on a road map G01C21/3614, G01C21/3685 take precedence
• CPC Class Codes: G06F 16/9537 Spatial or temporal dependent retrieval, e.g. spatiotemporal queries
• 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 1/096844 where the complete route is dynamically recomputed based on new data
• CPC Class Codes: G08G 1/096866 where the complete route is shown to the driver

Abstract

A method for route planning for use with a vehicle navigation system. The method includes the steps of inputting a route origin and route destination on a computer separate from the navigation system, such as a PC. The user also inputs activities or points of interest. The computer then searches a point of interest database which matches the activities inputted by the user and calculates a preferred route from the origin and to the route destination. The preferred route, together with data relating to the points of activity, are then wirelessly transmitted to the navigation system for subsequent display on the navigation system screen.

Claims

1. A method for route planning for display on a screen of a vehicle navigation system comprising the steps of:

inputting a route origin and a route destination on a computer separate from the navigation system,

calculating a preferred route between said route origin and said route destination,

inputting activities of interest,

searching a point of interest database for point(s) of interest which match said activities of interest along said preferred route,

wirelessly transmitting said preferred route and said matching points of interest along said route to the navigation system, and

thereafter displaying said preferred route and said matching points of interest on the screen of the navigation system.

2. The method as defined in claim 1 wherein said wirelessly transmitting step comprises the step of wirelessly transmitting by a cellular telephone.

3. The method as defined in claim 1 and further comprising the step of updating said database when the vehicle containing the navigation system reaches any of said point(s) of interest in said database.

4. The method as defined in claim 1 wherein said step of inputting said route origin and said route destination comprises the step of inputting an anticipated departure time.

5. The method as defined in claim 1 wherein said displaying step further comprises the step of displaying alternate points of interest on the screen of the navigation system.

6. A system for route planning for display on a screen of a vehicle navigation system comprising:

a computer separate from the navigation system,

an input device which inputs a route origin, route destination and activities of interest to said computer,

said computer programmed to calculate a preferred route between said route origin and said route destination,

a database accessible by said computer containing points of interest,

said computer programmed to search said database for points of interest along the preferred route which match said activities of interest,

a transmitter which wirelessly transmits said preferred route and said points of interest along the preferred route which match said activities of interest to the navigation system for display on the screen of the navigation system.

7. The system as defined in claim 6 wherein said computer sends data to said transmitter through a network.

8. The system as defined in claim 7 wherein said network comprises the World Wide Web.

9. The system as defined in claim 6 wherein said transmitter comprises a cellular telephone transmitter.

10. The system as defined in claim 6 wherein said navigation system updates said database whenever the vehicle stops at a point of interest in the database.

11. The system as defined in claim 6 wherein said navigation system updates said database whenever the vehicle does not stop at a point which matched an activity of interest along the preferred route.

12. The system as defined in claim 6 wherein said computer is programmed to transmit alternate points of interest along the preferred route to the navigation system.

13. A method of developing a database for use with vehicle navigation systems which transmit a signal to a network indicative of the position of the vehicle, said method comprising the steps of:

storing records of points of interest, each record containing an identifier of the point of interest, a location of the point of interest and data relating to the point of interest,

receiving data from the navigation system,

analyzing said received data to determine if the vehicle is present at one of said points of interest in the database and, if so, updating the data of the record for said point of interest.

14. The method as defined in claim 13 wherein said updating step comprises the step of incrementing a counter the record of the point of interest.

15. The method as defined in claim 14 wherein said updating step comprises the step of storing a current time the vehicle was present at the point of interest.