NAVIGATION SYSTEM, BASE STATION, TRAFFIC CONGESTION INFORMATION PROCESSING SYSTEM, ITS CONTROL METHOD AND CONTROL PROGRAM, AND TRAFFIC CONGESTION INFORMATION PROCESSING METHOD

摘要

PROBLEM TO BE SOLVED: To obtain traffic congestion information indicating the jamming state of a road of good real time property and use it for map display and accuracy improvement in route calculation, with a simple technique using the number of connection vehicles in a cell of a base station in a navigation system mounted with a wireless LAN.;SOLUTION: The navigation system 10 receives, at any time in a radio section, from the base station, traffic congestion information of the base station itself and traffic congestion information of another base station connected to the former base station via a communication network, and outputs the received traffic congestion information from an output section. In consideration of it, route calculation to a destination is performed.;COPYRIGHT: (C)2009,JPO&INPIT