| 摘要 |
PROBLEM TO BE SOLVED: To provide a navigation server, etc. for setting, etc. an appropriate navigation route in consideration of a support route set by a navigation server while keeping down the amount of communicated information. SOLUTION: A starting position p<SB>1</SB>of a user and an objective position p<SB>2</SB>thereof are recognized by this navigation server 100 based on its communication with this navigation device 200, and a support route R is set connecting the starting position p<SB>1</SB>and the objective position p<SB>2</SB>. A plurality of links constituting part of the support route R are recognized by the navigation device 200 based on communication with the navigation server 100. Further, a navigation route r, including a plurality of links connecting the starting position p<SB>1</SB>and the objective position p<SB>2</SB>, is set by the navigation device 200. Furthermore, it is determined by the navigation device 200 whether or not a deviation is equal to or less than a thresholdε<SB>i</SB>, the deviation being between a distance d<SB>1i</SB>along the support route R and a distance d<SB>2i</SB>along the navigation route r in a pair of links adjoining each other among the plurality of links. The navigation route r is outputted through an output device 202 by making it a requisite that the result of the determination is affirmative. COPYRIGHT: (C)2009,JPO&INPIT |
