| 摘要 |
<p>PURPOSE:To suppress the occurrence of human errors, to efficiently perform air traffic control and to secure safety by offering and displaying the arrival time and arrival order of respective aircrafts at optional positions automatically. CONSTITUTION:The current position of a tracking target whose position is updated is inputted. Then a fixed point matching the current position of the tracking target is retrieved. For example, fixed points shown by A - F which are set in two dimensions are set and stored in advance as two-dimensional data along an entry course. The start fixed point position of fixed point information storage contents and the current position of the tracking target are compared in order to retrieve a start fixed point where the position difference is less than a prescribed value. Then a confluence fixed point is stored and a tracking target which is so stored that the arrival time and order at the position are to be controlled is retrieved. The arrival order is set in the arrival time order to the confluence fixed point of the retrieved tracking target and the arrival time and arrival order data are added by display data of the corresponding tracking target to update the display of the tracking target. Then the arrival time is displayed on a CRT screen S together with a call sign, altitude, ascent or descent, and a velocity display.</p> |
