GPS/AUTONOMOUS NAVIGATION INTEGRATION SYSTEM, AND ITS OPERATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide a GPS/autonomous navigation integration system capable of estimating accurately the present position of a moving object, and an operation method therefor.;SOLUTION: This system/method comprises a GPS receiver 401 for receiving absolute position information of the moving object from a GPS, an inertia sensor 402 for measuring a variation of the moving object by the autonomous navigation system, an advance/retract judging part 405 for judging condition information as to the advancing or retreating of the moving object, an autonomous navigation processing part 403 for measuring a travel distance of the moving object by the autonomous navigation system, referring to information supplied from the inertia sensor and the advance/retract judging part, to estimate a position, and a computing part 404 for estimating the present position of the moving object, referring to information supplied from the GPS receiver and the autonomous navigation processing part. The system/method judges whether the moving object is under an advancing state or a retracting state, so as to estimate accurately the present position of the moving object, reflecting advancing state/retracting state information of the moving object.;COPYRIGHT: (C)2005,JPO&NCIPI