| 摘要 |
PROBLEM TO BE SOLVED: To automatically decide installed place, where master sets can surely and efficiently make communication with respective slave sets while utilizing a few numbers of the master sets in the case that many numbers of the radio slave sets are or going to be distributed over a wide area. SOLUTION: The radio master sets are movable. After the radio master sets are properly moved, tentatively installed and the radio wave condition is properly set. Data of radio wave strength in the communication between the radio master sets and the radio slave sets are measured by the radio slave sets and the result is stored in a magnetic recording medium. A display device of a map display system displays the present positions of the radio master sets and the radio slave sets on the basis of the installed position data of the radio slave sets stored in the magnetic recording medium and their own position data measured by the radio slave sets themselves and the display device of the map display system displays the data relating to the communication radio wave strength of the radio master sets by each radio slave set. These processings are properly repeated. |
