| 摘要 |
PROBLEM TO BE SOLVED: To retrieve position information of terminals at any time by providing a position storage part storing the storage positions of the portable terminals, giving the inquiry of position information and working and outputting the inquired result. SOLUTION: The portable terminals a31 and b41 are stored in an exchange 10 through terminal storage devices a30 and a40 and the storage information are stored in a position information storage circuit 11. A management device 20 is connected to an input device 21, an output circuit 22, a storage circuit 23 and the exchange 10. Physical position information on a terminal storage circuit is stored in the storage circuit 23. When the number of the portable terminal a31 is inputted from the input device 21 and position retrieval is indicated, the management device 20 reads that the storage destination of the portable terminal a31 is stored in the terminal storage device a30 from the position information storage circuit 11 connected to the exchange 10. The management device 20 reads position information for the respective terminal storage device stored in the storage circuit 23 and displays them to the output circuit 22. |
