| 摘要 |
<p>PROBLEM TO BE SOLVED: To make meeting arrangement, etc., efficient by enabling a person and a motor vehicle to verify their respective locations. SOLUTION: When the person H is carrying a portable communication device 10 and an on-board communication device 20 is on board the motor vehicle V, the person H and the motor vehicle V are capable of conducting communication with each other, using the portable communication device 10 and the on- board communication device 2, and the portable communication device 10 and the on-board communication device 20 each have identification information, capable of authenticating the other side of communications. When the identification information of the portable communication device 10 and that of the onboard communication device 20 match with each other, while locational information is exchanged automatically with each other between both sides of the communication, the locational information and attribute information of the other side of communication are fetched and displayed on the displays of the communication devices 10 and 20.</p> |
