Patent ID: 8185310
Filing Date: 2012-05-22
Classification: G01C,G08G

Abstract:
1. A navigation server which supports guiding of a user by a navigation device, comprising: a support map storing unit which stores a support map information; a first support processing unit which recognizes a current position and a destination position of the user on the basis of communication with the navigation device, and which sets a support route which connects the current position and the destination position, on the basis of the support map information stored in the support map storing unit; and a second support processing unit which extracts a link, in a case where a distance from a k-th (k=1, 2, . . . ) changing point of a road type to a k+1-th changing point along the support route is equal to or more than a first predetermined distance, while taking the fact that the link includes the k-th changing point as a terminal point or the link includes the k+1-th changing point as a starting point, as the extraction condition, among a plurality of the links constituting the support route set by the first support processing unit, as a target link, and makes the navigation device recognize the target links of a number equal to or less than a predetermined number in order from the link closest to the current position on the basis of communication with the navigation device by a processor.