| 摘要 |
PURPOSE: To prevent the unauthorized intrusion of a third person by using a dedicated protocol adapter in a system for transmitting the latitude and longitude of the closest base station to a center station, displaying the base station as a marker in a map on the computer screen of the center station and displaying that a mobile station is present within the cell of the base station to obtain the position information of the mobile station to be an object in a small zone type radio communication system such as PHS or the like. CONSTITUTION: The system is constituted of the center station 1 provided with the dedicated protocol adapter 14, a telephone company 16, the base station 6 and the mobile station 7. The position information data of the base station of the cell where the mobile station is present recognized by the data base of the radio communication system are transmitted from the telephone company to a center side through the dedicated protocol adapter by a request to the telephone company through the dedicated protocol adapter of the center station and the center side displays the position of the base station on the map on the display 10 of a computer by the marker. |
