Method for displaying position of an aircraft in a display for air traffic control

A method for displaying aircraft positions, comprising:

• displaying a terrain apparently in three dimensions on a display screen based on topographic data corresponding to an air space under air traffic control;
• finding three-dimensional positions of respective aircrafts based on position data and altitude data of the respective aircrafts contained in air traffic control information obtained about the air space under air traffic control, and displaying aircraft marks indicating the respective aircraft at positions on the display screen so as to correspond to the three-dimensional positions of the respective aircraft;
• finding a distance between two neighboring aircraft, and determining whether the distance between the two neighboring aircraft is shorter than a safety distance;
• displaying (a) a surveillance instruction mark and (b) a warning mark apparently in three dimensions on the display screen when it is determined that the distance between two aircraft found is shorter than the safety distance,
• wherein the surveillance instruction mark comprises a triangle having three apexes;
• including aircraft marks corresponding to the two neighboring aircrafts, and a position that is apart from one of the aircraft marks along a vertical line extending perpendicular to the one aircraft toward a ground surface by a distance corresponding to an altitude difference between both of the two neighboring aircraft on the display screen, and
• wherein the warning mark comprises a triangle having three apexes including a point in an overlapped range and both aircraft marks, when estimated arrival ranges of both of the neighboring aircraft after a certain period of time are overlapped according to a prediction of flight up to a lapse of the certain period of time, the estimated arrival ranges based on flight trajectories and flight conditions of the two neighboring aircraft.

A method for displaying aircraft positions, comprising:

• displaying a terrain apparently in three dimensions on a display screen based on topographic data corresponding to an air space under air traffic control;
• finding three-dimensional positions of respective aircrafts based on position data and altitude data of the respective aircrafts contained in air traffic control information obtained about the air space under air traffic control, and displaying aircraft marks indicating the respective aircraft at positions on the display screen so as to correspond to the three-dimensional positions of the respective aircrafts;
• finding a distance between two neighboring aircraft, and determining whether the distance between the two neighboring aircraft is shorter than a safety distance;
• forming a triangle when the distance between the two neighboring aircraft is shorter than the safety distance, the triangle having three apexes comprising the aircraft marks corresponding to the two neighboring aircraft, and a position that is apart from one of the aircraft marks along a vertical line extending perpendicular to the one aircraft toward a ground surface of terrain by a distance corresponding to an altitude difference between both of the two neighboring aircrafts on the display screen, and displaying a triangular pyramid as a warning mark in a three-dimension-like way when estimated arrival ranges for both of the two neighboring aircraft after a certain period of time are overlapped according to flight prediction based on flight trajectories and flight conditions of the two neighboring aircraft, the warning mark connecting the three apexes of the triangle and a point in an overlapped range for both of the two neighboring aircraft.