JPH04246800A - Rearward turbulence alarm device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wake turbulence warning system for safe flight of an aircraft in an air traffic control system.

0002

[Prior Art] Conventionally, warnings of the effects of wake turbulence on other aircraft that occur immediately after a large aircraft takes flight have relied on the judgment of air traffic controllers. There have been incidents of planes getting into turbulence and crashing.

0003

[Problems to be Solved by the Invention] The conventional air traffic control system described above does not have an advance warning function for small aircraft that are expected to enter wake turbulence, so everything is left to the prediction and judgment of the controller. There is.

An object of the present invention is to provide a wake turbulence warning device that automatically predicts the occurrence of an accident due to wake turbulence and issues a warning.

[0005]

[Means for Solving the Problems] The wake turbulence warning device of the present invention includes a position prediction means for tracking an aircraft based on position information and calculating a predicted future position; turbulence area prediction means for predicting a wake turbulence area based on the predicted position, wind direction, and wind speed from the means; and the predicted position from the position prediction means and the position of the wake turbulence area from the turbulence area prediction means. The apparatus includes a turbulence warning determining means for generating a turbulence warning for the aircraft predicted to enter the wake turbulence region by comparison, and a turbulence warning display means for displaying the turbulence warning from the turbulence warning determining means.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In the embodiment shown in FIG.
creates current track information by correlating with past track information that contains aircraft position information 101 as input data. The identification processing unit 2 uses the input flight plan information 102 and the current track information output from the tracking processing unit 1 to add the identification code and model of the aircraft corresponding to the current track information to the track information to detect turbulence. It is output to the area prediction processing section 3. On the other hand, the position prediction processing unit 4 predicts the future track position based on the current track information created by the tracking processing unit 1,
Output to the predicted track data file 5.

[0009] The turbulence area prediction processing unit 3 predicts the future turbulence area and its extent based on the wind direction and wind speed information 103, the track position from the predicted track data file 5, and the aircraft type information input from the identification processing unit 2. The strength is predicted and registered in the predicted turbulence area data file 6.

The turbulence warning determination unit 7 examines the positional relationship of each data in the predicted track data file 5 and the predicted turbulence area data file 6, and if the predicted track passes through the predicted turbulence area, the turbulence warning is displayed in the turbulence alert display unit 8. Display to. By instructing the aircraft to change course based on this turbulence warning, the controller can prevent accidents.

FIG. 2 shows an example of a display on the turbulence alarm display section 8. A dangerous space after a certain period of time after the wake turbulence generated by the aircraft 9 with the identification number A is shown as a predicted turbulence area 10,
The past trajectory of the small aircraft 11 with identification number B is shown by a row of x marks, the future trajectory is shown by a broken line, and the location where it will enter the predicted turbulence area 10 is shown by a double circle 12.

0012

Effects of the Invention As explained above, the present invention automatically predicts aircraft that are likely to enter a wake turbulence region based on aircraft type information, wind direction, and wind speed, in addition to aircraft position information obtained from radar etc. By displaying a warning at a specific point in time, the controller can instruct the relevant aircraft to change course and prevent accidents from occurring.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention.

[Fig. 2] Turbulence alarm display section 8 in the embodiment shown in Fig. 1
It is a figure which shows the example of a display to.

[Explanation of symbols]

1 Tracking processing unit 2 Identification processing unit 3 Turbulence area prediction processing unit 4 Position prediction processing unit 5 Predicted track data file 6 Predicted turbulence area data file 7 Turbulence warning determination unit 8 Turbulence warning display unit

Claims (1)

[Claims] 1. Position prediction means for tracking an aircraft based on position information and calculating a predicted future position; a turbulence area prediction means for predicting a turbulence area; and a turbulence area prediction means for predicting entry into the wake turbulence area by comparing the predicted position from the position prediction means and the position of the wake turbulence area from the turbulence area prediction means. A wake turbulence warning device comprising: turbulence warning determining means for generating a turbulence warning for an aircraft; and turbulence warning display means for displaying the turbulence warning from the turbulence warning determining means.