| 摘要 |
<p>PURPOSE: To improve probability of position detection discovery by decreasing a mis-information ratio of detection of position of mobile bodies. CONSTITUTION: A central station 30 calls a mobile station 10 by a selective calling signal via a communication channel 40 and base stations 21, 22. The base stations 21, 22 measures a reception electric field level of a reply signal from the mobile station 10 and sends the result to the central station 30. The central station 30 identifies the reception electric field level received from the base stations 21, 22 for each of the base stations 21, 22 and indicates the received electric field level by the unit of display radio zones corresponding respectively to the radio zones 51, 52 belonging to each of the base stations 21, 22. As a result, since the central station 30 displays the position of the mobile station 10 to a display radio zone corresponding to the base station closest to the mobile station 10 and around the base station simultaneously in a redundant way, mis-information ratio is decreased and discovery probability is improved for the detection of position of the mobile body.</p> |
