| 摘要 |
<p>PROBLEM TO BE SOLVED: To detect and report a portable terminal which has been left in non operation, although it has been charged.SOLUTION: An account terminal management server 200 detects a portable terminal 10, which has been left in no operation for a certain period, by receiving the final operation date from the portable terminal 10. Subsequently, the account terminal management server 200 detects a portable terminal as a no operation charged terminal if the charging state is valid, with reference to the charging state of the portable terminal 10 from a charging state database 251, and then transmits a message to a predetermined transmission destination.</p> |
