METHOD AND SERVICE PROVIDING METHOD FOR DATA COMMUNICATION, METHOD AND SERVICE PROVIDING METHOD FOR NOTIFYING PASSAGE OF EMERGENCY VEHICLE, EXECUTION METHOD, PROVIDING METHOD AND SOLUTION PROVIDING METHOD FOR RADIO SPOT SERVICE, AND EMERGENCY VEHICLE PASSAGE NOTIFICATION PROGRAM AND RECORDING MEDIUM FOR THE PROGRAM

摘要

PROBLEM TO BE SOLVED: To stabilize a mobile communication network including inter-vehicle communication and to provide various information services at A low cost by utilizing the stabilized mobile communication network. SOLUTION: A radio network 1 includes a plurality of vehicles 10, a plurality of traffic signals 20, and a radio network management center 30. The radio network management center 30 is a gateway located between the radio network 1 and the Internet 2 and between the radio network 1 and a signal control center 40. In the radio network 1, stable data communication can be performed between respective nodes by the traffic signals 20 whose locations are fixed. In addition, since the radio network 1, the Internet 2, and the signal control center 40 are connected one another through the radio network management center 30, a terminal outside the radio network 1 can provide the vehicles 10 with various information services. COPYRIGHT: (C)2004,JPO&NCIPI