Map Updating System

• US 20090172031A1
• Filed: 08/30/2007
• Published: 07/02/2009
• Est. Priority Date: 09/01/2006
• Status: Active Grant

• Current Assignee: Aisin AW Company Limited (Aisin Corp.), Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Aisin AW Company Limited (Aisin Corp.), Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Moribe, Isao, Sugimoto, Hironobu, Kodan, Tomoki
• Granted Patent: US 8,392,367 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01C 21/3859 Differential updating map data
• CPC Class Codes: G01C 21/3896 Transmission of map data from central databases

Abstract

A map updating system that stores map data and a priority sequence table, acquires first update data and second update data of the map data according to the priority sequence table, and updates the map data based on the first update data and second update data according to the priority sequence table.

Claims

1. A map updating system, comprising:

a memory that stores map data a and priority sequence table;

a controller that;

acquires first update data and second update data of the map data according to the priority sequence table; and

updates the map data based on the first update data and second update data according to the priority sequence table.

2. The map updating system according to claim 1, the priority sequence table defining operation of the controller when the acquisition of the second update data starts during acquisition of the first update data.

3. The map updating system according to claim 1, the priority sequence table defining operation of the controller when the acquisition of the second update data starts during an interruption of the acquisition of the first update data.

4. The map updating system according to claim 1, the priority sequence table defining operation of the controller when the acquisition of the second update data starts during the updating of the map data according to the first update data.

5. The map updating system according to claim 1, the priority sequence table defining operation of the controller when the acquisition of the second update data starts during an interruption of the updating of the map data according to the first update data.

6. The map updating system according to claim 1, the controller acquiring at least one of the first update data and second update data from a map distribution center by remote communication.

7. The map updating system according to claim 1, the controller acquiring at least one of the first update data and second update data from a recording medium.

8. The map updating system according to claim 6, the acquired at least one of the first update data and second update data being incremental update data.

9. The map updating system according to claim 7, the acquired at least one of the first update data and second update data being comprehensive update data.

10. A method for updating a map system, comprising:

acquiring first update data and second update data of map data according to a priority sequence table; and

updating the map data based on the first update data and second update data according to the priority sequence table.

11. The method for updating a map system according to claim 10, further comprising:

prioritizing acquisition of the second update data during acquisition of the first update data.

12. The method for updating a map system according to claim 10, further comprising:

prioritizing acquisition of the second update data during an interruption of the acquisition of the first update data.

13. The method for updating a map system according to claim 10, further comprising:

prioritizing acquisition of the second update data during the updating of the map data according to the first update data.

14. The method for updating a map system according to claim 10, further comprising:

prioritizing acquisition of the second update data during an interruption of the updating of the map data according to the first update data.

15. The method for updating a map system according to claim 10, further comprising:

acquiring at least one of the first update data and second update data from a map distribution center by remote communication.

16. The method for updating a map system according to claim 10, further comprising:

acquiring at least one of the first update data and second update data from a recording medium.

17. The method for updating a map system according to claim 14, at least one of the first update data and second update data being incremental update data.

18. The method for updating a map system according to claim 15, at least one of the first update data and second update data being comprehensive update data.

19. A computer-readable medium storing a computer-executable program usable to update map data, the program comprising:

instructions for acquiring first update data and second update data of map data according to a priority sequence table; and

instructions for updating the map data based on the first update data and second update data according to the priority sequence table.