| 摘要 |
PROBLEM TO BE SOLVED: To make it easy to use position information on others and to protect security and privacy. SOLUTION: The position information is supplied through an information provision system provided with a position information data base where position information on users can be put together, an application server 15 for grouping which can provide information in the data base 17 for users belonging to the same group, and a server 16 for position information which can update the position information in the data base 17. The position information is put together in the information provision system 10 temporarily and then provided for other users, so a direct exchange of information between users is not necessary, and any user who is able to access the information provision system 10 can be provided with position information irrelevantly to the distance and time. The destination to deliver position information, on the other hand, can be specified, so security and privacy can be protected. |
