JP2937243B2 - Flight status display method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flight status display method for calculating the current position of an aircraft in an air traffic control system using a computer and displaying the calculated position by altitude on a designated flight route.

[0002]

2. Description of the Related Art Conventionally, a current position is calculated from flight plan information submitted by an aircraft in advance and position information by satellite communication or ground communication, and is displayed in a plane form projected from the sky onto the ground surface. FIG. 4 shows a display example. The current position of each aircraft is displayed as an isosceles triangle directed in the direction of travel called a target symbol 10, and as information necessary for the aircraft, a flight number and a second line are displayed on the first line of a display area called a data block 11. The altitude information is displayed on the eyes. Further, a separation area 12 indicating a protection airspace of each aircraft is provided.
The target symbol 10 is displayed as a circle. When the altitude is being changed, the altitude information 11 'of the data block 11 is displayed in the order of the approved altitude, the ascent / descent identification, and the old altitude.

[0003]

However, altitude is changed as needed in order for the airplane to fly more safely. However, the display form shown in FIG. Since there is no aircraft, the only way to change altitude while maintaining a safe distance from other aircraft is to read and determine the character information in the data block added to the target symbol of the aircraft. I couldn't figure out.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to display the current position of an aircraft by a designated flight route at each altitude, thereby visually indicating the positional relationship of the aircraft flying on the same flight route and the altitude change airspace. It is an object of the present invention to provide a flight status display method which can be understood at a glance and can reduce the burden of air traffic control operations.

[0005]

According to the present invention, an altitude cross-section screen having an altitude as a vertical axis and a point as an abscissa is displayed on a display device together with a horizontal altitude indicating line for a designated flight route. The position of each aircraft that flies
Calculated based on flight plan information and position information from satellite communication or ground communication, etc., and a target symbol indicating the calculated position is displayed at the corresponding coordinates on the altitude cross section screen with data such as flight number, For the aircraft being changed, a separation area indicating a protected airspace from the altitude before the altitude change to the altitude after the change is displayed on the altitude cross-section screen based on the target symbol as compared with the altitude before the altitude change.

[0006] The separation area indicating the protection airspace of the aircraft whose altitude is being changed is displayed on the altitude cross-section screen based on the target symbol, so that not only the range in the traveling direction but also the range in the height direction are simultaneously displayed. be able to. Even if the display is a simple vertical line, the range in the height direction can be determined from the length, and the range in the traveling direction can be determined from the position in the horizontal axis direction.

[0007] By displaying the target symbol of the aircraft whose altitude is being changed while changing its direction in the altitude changing direction, the direction of the altitude changing direction can be easily known.

[0008] For a plurality of aircraft crossing the same altitude and the same point, by changing the target symbol and displaying the crossing time of each aircraft, it is easy to avoid near or near.

[0009]

Next, embodiments of the present invention will be described in detail with reference to the drawings.

In this example, as shown in FIG. 1, an altitude section screen 1 is displayed on a display device for a designated flight route. The altitude section screen 1 is a form in which a designated flight route is vertically projected on the ground surface, the altitude is set on the vertical axis, the point is set on the horizontal axis, and a horizontal altitude indicating line 2 is displayed in fixed altitude units. At the same time, point indication line 3 by vertical line,
It is displayed at a certain distance or at a specific fixed point on the ground. In the illustrated example, the altitude indicating lines 2 are in units of 1000 feet, and a number indicating the altitude is attached to the left side of each altitude indicating line 2. In addition, above each point indicating line 3, "FIX-A" and "FI
X-B, FIX-C, and FIX-D.

The altitude section screen 1 of the designated flight route
Above, the current position of each aircraft flying on the flight route is displayed by an isosceles triangle target symbol 4 directed to the traveling direction, and the first line is a flight number and the second line is altitude information. Data block 5 is added. Further, the separation area 6 indicating the protection airspace of each aircraft displays only the front in the traveling direction from the target symbol 4 by two parallel vertical lines having a length corresponding to the altitude range.

A plurality of aircraft crossing the same altitude and the same point are represented by diamond-shaped target symbols 7,
In the data block 8 appended thereto, the flight number and intersection time of each aircraft are displayed in ascending order. Further, as for the aircraft whose altitude is being changed, the direction of the isosceles triangle target symbol 4 is changed to the altitude changing direction (upward or downward) as shown in FIG.

Next, the operation of the embodiment of the present invention will be described with reference to FIG.

First, a flight route (or a point in the flight route) to be displayed is set (step S1). Next, the current position of the aircraft is calculated (step S2). The aircraft position is calculated using flight plan information submitted in advance, location information via ground communication, and location information via satellite communication. In the case of, the flight plan information is updated at any time. If there is position information by satellite communication, the position is given priority, and if not, the position is determined based on flight plan information. If it is based on the flight plan information, it always exists on the flight route, but the position calculated based on satellite communication may not exist on the flight route, so in that case, the perpendicular from the current position to the set flight route And perform a proportional calculation on the flight route to determine the current position in the altitude section.

Next, an aircraft flying on the designated flight route is searched, and for all the searched aircraft, it is determined whether or not there is an intersection on the designated flight route (step S3). If there is an intersecting aircraft, the intersection time is obtained, and if there is an aircraft that intersects at the same altitude and the same point, it is sorted in the order of the earlier intersection time. At that time, those whose crossing time has passed the current time are excluded.

Next, an aircraft is displayed for each altitude on the altitude section screen 1 of the designated flight route (step S).
4). When the satellite communication is used, the altitude received from the satellite is displayed. When the satellite communication is not performed, the altitude is displayed based on the approved altitude of the flight plan information. If an aircraft whose altitude is being changed exists, the direction of the target symbol 4 and the separation area 6 are determined by comparing the altitude before the change. If there are intersecting aircraft,
At the same altitude and the same point, those with the earlier intersection time are displayed in order from the bottom.

If the flight plan information is changed, or the position information is newly obtained by satellite communication, or if a certain period of time has elapsed, the process returns to the current position calculation in step 2 and repeats the processing.

Referring to the embodiment shown in FIGS. 1 and 2, FIG. 1 shows that a designated flight route includes a flight number AAA001 at an altitude of 35000 feet, a flight number of BBB002 at an altitude of 31,000 feet, a flight number of CCC003 at an altitude of 37000 feet, and 3 The plane is flying.

At point FIX-B, flight number DDD004, altitude 33,000 feet, intersection time 11:25, flight number EEE005, altitude 33,000 feet, intersection time 11:48, are crossing and flying.

Referring to FIG. 2, the flight number AAA0 in FIG.
Since the aircraft No. 01 has changed altitude from 35,000 feet (old altitude) to 37000 feet (approved altitude), the flight information indicates “370 ↑ 350” indicating the transition from “old altitude” to “approved altitude”. it's shown. In addition, a separation area 6 'is displayed by a vertical line having a length from the protected altitude at the old altitude to the protected altitude at the approved altitude, and the target symbol 4' is displayed upward to visually indicate whether the air is ascending or descending. ing.

FIG. 3 shows the operation for displaying such a display.
According to the following. First, set the flight route to be displayed. Here, the flight route shown in FIG. 1 or FIG. 2 is set. Next, the current position of the aircraft (AAA001, BBB002, CCC003) flying on the set flight route is calculated. Next, it is determined whether the vehicle intersects with the set flight route. Aircraft DDD004 is 11:02
At 4 minutes, aircraft EEE005 crosses the set flight route at 11:48. Since these two aircraft cross the same altitude and the same point, they are sorted from the one with the earliest intersection time (DDD00
4, EEE005). Finally, the aircraft for each altitude is displayed on the altitude section screen 1 of the set flight route.

[0022]

As described above, the present invention displays an altitude cross-section screen with the altitude as the vertical axis and the point as the horizontal axis for the designated flight route, and indicates the position of each aircraft flying on the flight route. Since the target symbol is displayed at the corresponding coordinates on the altitude cross section screen with data such as flight number, it is possible to promptly and accurately instruct the aircraft whose altitude is to be changed.

Since the altitude indicating line represented by the horizontal line is displayed on the altitude section screen, the altitude of each aircraft by the target symbol can be easily known.

Since the separation area indicating the protection airspace of the aircraft whose altitude is being changed is displayed on the altitude cross-section screen with reference to the target symbol, the aircraft whose altitude is being changed is not only in the range of the traveling direction but also in the high altitude. The range in the vertical direction can be grasped in advance.

According to the second aspect of the present invention, the separation area indicating the protection airspace can be displayed simply and easily by the vertical line.

According to the third aspect of the present invention, the target symbol of the aircraft whose altitude is being changed is displayed by changing its direction in the altitude changing direction. It can be easily identified.

According to the fourth aspect of the present invention, for a plurality of aircraft crossing the same altitude and the same point, the crossing time of each aircraft is displayed by changing the target symbol. Become.

[Brief description of the drawings]

FIG. 1 is an example of an altitude cross-section screen displayed for a designated flight route in the present invention.

FIG. 2 is a view of an altitude cross-section screen, a part of which is slightly different from FIG.

FIG. 3 is a flowchart showing the operation of the present invention.

FIG. 4 is a diagram showing a conventional display example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Altitude section screen 2 Altitude indicator line 3 Point indicator line 4 ・ 4 ′ Target symbol 5 Data block 6 ・ 6 ′ Separation area 7 Target symbol indicating intersecting aircraft 8 Data block

Continuation of front page (58) Fields investigated (Int. Cl. ⁶ , DB name) G08G 5/00 G08G 5/04 G01S 13/91 G01S 13/93 G01C 21/00

Claims (4)

(57) [Claims] 1. A display device displays an altitude cross-section screen having an altitude as a vertical axis and a point as an abscissa along with an altitude indicating line as a horizontal line on a designated flight route, and displays a position of each aircraft flying on the flight route. , Calculated based on flight plan information and position information from satellite communication or ground communication, etc., and displaying the target symbol indicating the calculated position, with data such as flight number, at the corresponding coordinates on the altitude section screen, For the aircraft whose altitude is being changed, the separation area indicating the protected airspace from the altitude before the altitude change to the altitude after the altitude is compared with the altitude before the altitude is displayed on the altitude cross-sectional screen based on the target symbol. A flight status display method, characterized in that: 2. A separation area indicating a protected airspace,
2. The flight status display method according to claim 1, wherein the flight status is displayed as a vertical line. 3. The flight status display method according to claim 1, wherein a target symbol of the aircraft whose altitude is being changed is displayed by changing its direction in the altitude changing direction. 4. The flight status display method according to claim 1, wherein, for a plurality of aircraft intersecting at the same altitude and the same point, an intersection time of each aircraft is displayed by changing a target symbol. .