RU2612942C1 - Method of displaying information about vertical movement of ship's flight strip during landing of helicopter on ship - Google Patents

Abstract

FIELD: aviation.

SUBSTANCE: multi-function indicator of vertical movement of the flight strip is mounted on the parking shelter or another ship's superstructure in a position close to vertical, facing the direction of helicopter's landing approach, there are two data fields positioned on the indicator with luminous elements based on colour superbright LEDs, on the second one heave amplitude and current position of flight strip's centre are displayed parallel to the long side of the indicator, in the form of a bar chart which changes colour depending on the up and down movements, on the first one - symbol of flight strip's position indication is displayed which is safe for approaching of a helicopter in lowering motion, wherein the display of indication's symbol and bar chart are designed using different colours.

EFFECT: safety of the helicopter's landing on the ship's deck in adverse weather conditions.

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Description

The invention relates to aeronautical engineering, mainly naval aviation, and can be used to provide visual landing of a helicopter on a ship take-off and landing platform (runway) day and night, with airborne and keel pitching, in simple and difficult weather conditions by increasing the level of awareness of the pilot visual method of helicopter landing on ship runways.

For pilots, the most difficult task of helicopter flight is the problem of helicopter landing (casing) on the runway. In order to make a successful landing, the pilot must predict the moment when the center of the runway will move down, and the angles along the trim and lateral pitching will tend to zero, i.e. The runway position will be close to horizontal.

To improve landing safety, various information support methods and tools are being developed.

There is a method of providing the pilot with visual information on the vertical movement of the ship's landing strip during helicopter landing on a ship (see Yu.G. Basov, Lighting devices. Moscow, Transport, 1993, pp. 269-270, 309).

The method consists in turning on the green indicator when the deck is moving down, the red indicator of landing prohibition and the yellow indicator when the deck is moving up, the trim direction indicator down and the trim direction indicator up.

The disadvantages of this method include the lack of information for deciding on landing on the runway, in particular, with this method it is difficult to determine the moment of changing the direction of movement of the runway.

The closest in technical essence and the achieved result is a method of displaying information about the vertical movement of the ship's take-off and landing site when landing a helicopter on a ship (see patent RU No. 2506654 IPC G09G 03/20, publication of 02/10/2014), which consists in the fact that on the hangar or other superstructure of the ship in a position close to vertical, with the front side pointing towards the helicopter landing, a multifunctional indicator is installed, for example, based on color super-bright LEDs. This indicator has two information fields. On one of them, for example, on the first, parallel to the long side of the indicator, a display of the height scale of the runway center is provided, and on the second information field, information on the runway position is displayed in the form of a color bar chart consisting of LED lines, the beginning of which is a line of LEDs that displays the current runway position, and the end is a line of LEDs that displays the predicted runway position as it moves from bottom to top or top to bottom. The height of the bar graph depends on the pitch amplitude of the center of the runway in the vertical plane, while the bar graph burns in one color, for example, green, when moving down, and in another, for example, yellow, when moving up. The line of LEDs at the top of the amplitude lights up in green, and at the bottom in a different color, for example yellow. The ends of the bar graph are calculated by the computing device, i.e. are predictable.

The disadvantages of the method presented in the patent should include the difficulty of determining the pilot's moment, favorable for the landing of the helicopter to the deck. He defines this moment visually, observing the movement of deck illumination lights as the deck moves down from the helicopter. This moment occurs when the pitch angle along the trim and the side pitch angle are close to zero.

The technical result of the solution is to increase the safety of helicopter landing on the ship's runway in difficult weather conditions.

The proposed technical result is achieved by the fact that in the method of displaying information about the vertical movement of the ship's take-off and landing site when the helicopter is landing on the ship, it consists in the fact that on the hangar or other superstructure of the ship in a position close to vertical, the front side facing the approach helicopter landing, set a multifunctional indicator of vertical movement of runways, on which there are two information fields with light elements based on color superbright light on the second one, parallel to the long side of the indicator, the amplitude of the vertical pitch and the current position of the center of the runway is displayed on it in the form of a bar chart of one color when moving down and the other - when moving up and the beginning of which is a line of LEDs that displays the current position of the runway, and at the end - a line of LEDs that displays the predicted position of the runway when it moves from bottom to top or top to bottom, and the symbol for indicating the position of the VP is displayed on the first information field A safe plane for a helicopter landing is a position close to horizontal when the runway takes it when moving downward, and the display of the indication symbol and the bar graph are made in different colors.

Comparison of the proposed solution with the well-known technical solutions shows that it has a new set of essential features, which, together with the known ones, allow to successfully achieve the goal.

The essence of the proposed solution is that on the first information field, instead of the scale, the symbol for indicating the position of the runway safe for the landing of the helicopter is displayed - a position close to horizontal, which it (the runway) will occupy when the runway moves down. The indication symbol has a color other than the color of the bar chart when moving down.

By introducing a runway position indication symbol that is safe for helicopter mooring, the pilot's level of awareness is increased to make a decision on helicopter mooring.

In FIG. Figure 1 shows the panel view when the runway moves down - the beginning of the movement.

In FIG. Figure 2 shows the panel view when the runway moves up.

In FIG. 3 shows the conditional trajectory of the runway center and its height marking is given, where:

1 - multifunctional indicator of vertical movement;

2 - information field 1 - display field for the symbol for indicating the position of the runway safe for the helicopter to land on the ship;

3 - information field 2 - field for indicating the amplitude of the vertical roll of the center of the runway and the current position of the center of the runway;

4 - the current position of the center of the runway when it moves down;

5 is a calculated bar graph of the amplitude of the vertical movement of the center of the runway during its downward movement;

6 - a symbol for indicating the position of a runway safe for a helicopter to land on a ship;

7 - the predicted lower position of the center of the runway when it moves down;

8 is a calculated bar graph of the amplitude of the vertical movement of the center of the runway during its upward movement;

9 - the current position of the center of the runway when it moves up;

10 - the predicted upper position of the center of the runway during its upward movement;

H _a1 is the amplitude of the vertical roll of the center of the runway when moving down;

N _a2 - amplitude of the vertical roll of the center of the runway when moving up;

h _pos - the height distance from the current position of the center of the runway on the trajectory to the position when the runway takes a horizontal position.

To implement the proposed method, the pilot is provided with information about the onset of a moment favorable for mooring. This moment occurs when the current position of the center of the runway will be horizontally in the area close to the area of the symbol.

The method is as follows.

Using a computing device for several measurements of the runway roll period, the predicted amplitude H _a1 and H _{a2 of the} vertical movement of the runway center for the next roll period is calculated. The amplitude is determined taking into account the keel, airborne qualities and vertical movement of the center of the ship and taking into account the location of the center of the runway relative to the location of the sensors of the navigation system. In accordance with the calculated values of the amplitude, the bar charts 5 or 8 and, accordingly, the calculated lower rows 7 of the LEDs in diagram 5 and the upper 10 in diagram 8 are turned on.

If, when the runway center moves down, the runway can be in a position close to horizontal, then symbol 6 is turned on in field 1 at the corresponding height h _{pos of the} amplitude of vertical movement. When approaching the current position of Runway 4 to symbol 6, the pilot maneuvers the landing of the helicopter almost automatically.

An advantage of the invention is that the pilot is provided with information about the position of the runway center in the form and volume sufficient for a timely decision on the helicopter to be attached to the ship runway.

Claims (1)

A method of displaying information about the vertical movement of the ship's runway during landing of the helicopter on the ship, which consists in the fact that on the hangar or other superstructure of the ship in a position close to vertical, with the front side facing the helicopter landing toward landing, set a multifunctional indicator of vertical movement of the runway, on which there are two information fields with light elements based on color superbright LEDs, on the second of which parallel to the long side of the indicator we provide displays the amplitude of the vertical roll and the current position of the center of the runway in the form of a bar chart of one color when moving down and the other - when moving up and the beginning of which is a line of LEDs that displays the current position of the runway, and the end is a line of LEDs that displays the predicted position of the runway when it moves bottom to top or top to bottom, characterized in that the first information field displays a symbol for indicating the position of the runway safe for the landing of a helicopter - a position close to the horizon When the runway takes it when moving down, the display of the indication symbol and the bar graph are executed in different colors.

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