Route guiding system, route search server, route guiding mediation server and route guiding method

Abstract

An area which may be en-route from a departure place to a destination is specified, and when a route which passes through the specified en-route area is an optimal route, a guidance for the optimal route is given. Route search servers (30A, etc.) each of which includes a plurality of service providing areas and has a predetermined area as a service providing area cooperate with one another to search for an optimal route from the departure place to the destination, both set by a terminal device (20), and give a guidance for the optimal route. Each route search server (30A, etc.) includes information on candidate nodes between a local area and each of the other areas, network data and map data within the local area, and route search means (307A). The route search server (30A, etc.) which has received a route search request with the departure place and destination set therein from the terminal device (20) causes a route search server (30B, etc.) in each area, which may be en-route, to search for candidate nodes in each area based on the information on the candidate nodes, and provides the terminal device (20) with a guidance for a candidate node which minimizes the link cost as a recommended route.

Description

technical field [0001] The present invention relates to a route guide system for retrieving and guiding a candidate route from an arbitrary starting point to a destination by foot, car or public transportation, and particularly relates to retrieving and guiding a route that uses roads or vehicles that cross countries or regions. Linkage between multiple route guidance systems of map data and network data for route search in various countries and regions, smoothly transmit a series of route search and route guidance services from the departure point to the destination from system to system, and specify the route from the departure point to the destination A route guidance system, a route search server, a route guidance intermediary server, and a route guidance method that can guide an optimal route through a possible route area on the way to a destination when the route passing through the specified route area is the optimal route. Background technique [0002] Conventionally...

AI Technical Summary

Problems solved by technology

However, if the departure point is within the territory of a certain country and the destination is within the territory of another country, the total route from the departure point to the destination cannot be retrieved and guided because the route that the route guidance system on the departure point side can search and guide is the departure point The domestic range on the destination side does not have map data and network data for route searches in other countries on the destination side

In addition, even when the departure point and destination are within the service target area of ​​a certain route guidance system, if the route via the area served by another adjacent route guidance system is the optimal route, such a route search cannot be performed.

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