Patent ID: 8965694
Filing Date: 2015-02-24
Classification: G01C,G09B

Abstract:
1. A route search method, comprising: from map data including node data relating to nodes and link data relating to links, extracting nodes and links included in a map area in which a departure point and a destination point are included; for the links extracted, determining non negative link costs related to energy consumption or non positive link costs related to energy regeneration; generating a first road network by, for each of the nodes and each of the links extracted, generating a plurality of duplicates thereof; generating a second road network by adding first additional links and second additional links to the first road network; and searching for a route from a duplicate of a node corresponding to the departure point to a duplicate of a node corresponding to the destination point, using the link costs determined and the second road network generated; wherein: the first additional links are links for which predetermined non negative link costs are set, and in each of which a node of an end point of a duplicate of each of the links generated is changed to a node of an end point of another duplicate of the each of the links; and the second additional links are links for which predetermined non negative link costs are set, and each of which connects between duplicates of node corresponding to the destination point.