| 摘要 |
PROBLEM TO BE SOLVED: To avoid re-input of destination in the case of departure of a moving station having no map data base and efficiently make it reach the destination by sending a route in departure in addition to optimum route guided by a fixed station to the moving station. SOLUTION: A moving station MV loads a route survey device 1 and sends the self car position recognized with a GPS satellite and the destination to an aiding center 100. The aiding center 100 sends the route in departure to the moving station MV in addition to optimum route guiding to the destination calculated based on this information. The moving station MV compares the link presently running and the link of the guided route from the present position judged with the GPS satellite data for the guided route. When the optimum route is indicating C→D, for example, and MV departs in A-direction in a route other than the guided route, a route in departure in A-direction is selected among the route in deparature in the support center 100. That is, by selecting node 1→node 4→node 5→node 2 is selected to return to the optimum route and so MV can reach the destination efficiently. |
