| 摘要 |
PROBLEM TO BE SOLVED: To easily and perform in detail the setting to information search, and to reduce load on a communication charge related to the information search. SOLUTION: A user terminal unit 11 is connected at a prescribed time interval to an information server 12, and transmits a user ID, a password and position information. An authentication part 31 of the information server 12 executes authentication processing, on the basis of the received user ID and password, and transfers the position information to a navigation server device 32. An information searching part 33 searches a searching information storage part 34, on the basis of a searching condition and the position information received from the navigation server device 32. A searching result is transmitted to a server side e-mail preparing part 36, and is stored in an e-mail server of the navigation server device 32 as e-mail recording information on the searching result. The e-mail is transmitted, when the user terminal unit 11 is reconnected to the navigation server device 32. |
