NAVIGATION METHOD FOR MOVING BODY, NAVIGATION SYSTEM FOR ONBOARD MOVING BODY, PORTABLE NAVIGATION SYSTEM, AND COMPUTER-READABLE STORAGE MEDIUM

摘要

PROBLEM TO BE SOLVED: To improve the navigation function of a navigation device for a navigation system capable of bidirectional communication comprised of a main unit in an on board moving body and a portable subunit by utilizing location information received by the other device.;SOLUTION: The movement track information and movement predetermined path information of a motor vehicle computed by the main unit of the onboard motor vehicle are transmitted to the portable subunit. The subunit computes the present location and movement track information of itself and, on the basis of the computed information, map information, and the received information, displays on a display 25 a map image which indicates a symbol 58 of the present location of a subunit operator, its movement track 57, and the movement track 56 and movement predetermined path 59 of the motor vehicle.;COPYRIGHT: (C)2002,JPO