| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a system for vehicle-vehicle communication which precisely measure the position of a car, even when D-GPS service cannot be used or even with a navigation system that is not loaded with position correction function by D-GPS method, and can precisely catch the mutual positions of vehicles present in the vicinity with a vehicle-vehicle communication. <P>SOLUTION: The system comprises a position identifying means for identifying the present position from signals, by receiving the signals transmitted from a plurality of satellites, a receiver means for receiving the position information from beacon transmitting signals, including the information on the position placed on a road, an error information operation means for acquiring error information indicating a shift between the position information and the present position, by comparing the position information received with the receiving means and the present position identified by the position identifying means, and a transmission means for transmitting the error information calculated by the error information calculation means. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
