LINK SETTING SYSTEM SUITABLE FOR MAP MATCHING, METHOD AND PROGRAM THEREOF

• US 20080004804A1
• Filed: 06/19/2007
• Published: 01/03/2008
• Est. Priority Date: 07/03/2006
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Fujita, Takashi, Yao, Enjian
• Granted Patent: US 7,962,282 B2
• Time in Patent Office: Days
• US Class Current: 701/210
• CPC Class Codes: G01C 21/30 Map- or contour-matching

Abstract

In order to eliminate erroneous map matching, when a link is set on a road, the direction and distance the link is displaced are calculated in accordance with the width of the road and the width of a road paralleled to the road, or the positional relationship of both roads in road network.

Claims

1. A link setting system suitable for map matching, wherein a link is set at an optimum position on a road in light of road width and road network.

3. The link setting system suitable for map matching according to claim 1, wherein the direction and distance a link is displaced are determined depending on each road by statistically processing GPS positional data acquired.

9. A computer readable medium having stored thereon a series of instructions that can be read by a computer thereby to cause said computer to perform the method of claim 1.

11. A computer readable medium having stored thereon a series of instructions that can be read by a computer thereby to cause said computer to perform the method of claim 3.

2. A link setting system suitable for map matching, wherein when a link is set on a road, a direction and a distance said link is displaced are calculated in accordance with the width of said road and the width of a road paralleled to said road, or a positional relationship of both roads in road network.

4. The link setting system suitable for map matching according to claim 2, wherein the direction and distance a link is displaced are determined depending on each road by statistically processing GPS positional data acquired.

10. A computer readable medium having stored thereon a series of instructions that can be read by a computer thereby to cause said computer to perform the method of claim 2.

5. A method of setting links suitable for map matching, wherein a link is set at an optimum position on a road in light of road width and road network.

7. The method of setting links suitable for map matching according to claim 5, wherein the direction and distance a link is displaced are determined depending on each road by statistically processing GPS positional data acquired.

6. A method of setting links suitable for map matching, wherein when a link is set on a road, the direction and distance in and by which the link is displaced are calculated in accordance with the width of said road and the width of a road paralleled to said road, or the positional relationship of both roads in road network.

8. The method of setting links suitable for map matching according to claim 6, wherein the direction and distance a link is displaced are determined depending on each road by statistically processing GPS positional data acquired.