CN113721037A - Method, system, and medium for graphically indicating wind speed and direction on a nacelle display - Google Patents

Abstract

Translated fromChinese

本申请涉及一种用于在飞机驾驶舱显示器上图形化指示风速风向的方案，包括：显示一个罗盘的图形作为背景图；从外部数据源接收风速和风向数据；根据所接收的风速和风向数据，在所述罗盘上显示风速和风向数值；以及根据所接收的风速和风向数据，生成相应的风向袋并将其显示在所述罗盘上。

The present application relates to a solution for graphically indicating wind speed and direction on an aircraft cockpit display, including: displaying a compass graphic as a background image; receiving wind speed and wind direction data from an external data source; , display the wind speed and wind direction values on the compass; and generate a corresponding windsock and display it on the compass according to the received wind speed and wind direction data.

Description

Method, system, and medium for graphically indicating wind speed and direction on a nacelle display

Technical Field

The present application relates to the field of information display on a display of an aircraft cockpit, and more particularly to a method and system for graphically indicating wind speed and direction on an aircraft cockpit display.

Background

In the cockpit of a civil aircraft, in order to be able to display in real time various status parameters of the aircraft, several displays are generally provided to display different flight data, classified. Among these, wind speed and direction data are particularly important data. Particularly, in the process of taking off and landing, a pilot needs to know the wind speed and the wind direction of the current airplane constantly so as to adjust the attitude of the airplane in time and keep stable flight.

However, the current cockpit displays of various airplanes do not optimize the wind speed and wind direction, for example, they are directly displayed in a digital form, and the data displayed numerically is not intuitive, and the arrow direction is not clear, so that the pilot cannot read and obtain the wind speed and wind direction data at a glance, but needs to concentrate on the meaning of the data.

For example, in the process of evidence obtaining and flight test of a certain type of domestic aircraft, the flight test set has great opinion on the indication of the wind speed and the wind direction of the display, namely the arrow indicates that the direction is wrong, and the wind direction indication interval is large.

Therefore, there is a need to provide a solution that allows the wind speed and direction to be visually and clearly indicated on an aircraft cockpit display.

Disclosure of Invention

The application relates to a graphical aircraft wind speed and direction indicating scheme, so that a unit can know wind speed and direction information more intuitively and conveniently and assists in flying operation.

According to a first aspect of the present application, there is provided a solution for graphically indicating wind speed and direction on an aircraft cockpit display, comprising: displaying a compass graph as a background graph; receiving wind speed and direction data from an external data source; displaying wind speed and wind direction values on the compass according to the received wind speed and wind direction data; and generating and displaying a corresponding wind sock on the compass according to the received wind speed and wind direction data.

According to a second aspect of the present application, there is provided a system for graphically indicating wind speed and direction on an aircraft cockpit display, comprising: the background display module is configured for displaying a compass graph as a background graph; a data source selector configured to select and receive wind speed and wind direction data from an external data source; a wind speed and direction value display module configured to display wind speed and direction values on the compass according to the received wind speed and direction data; a windsock generating and displaying module configured to generate and display a corresponding windsock on the compass according to the received wind speed and wind direction data; and an output module configured to provide data generated by the various modules in the system to a cockpit display for displaying the corresponding graphics and data.

According to a third aspect of the present application, there is provided a computer readable storage medium having stored thereon instructions that, when executed, cause a machine to perform the method of the first aspect.

This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

Drawings

In order to describe the manner in which the above-recited and other advantages and features of the invention can be obtained, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered to be limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings in which:

FIG. 1 illustrates an example flow chart of a method for graphically indicating wind speed and direction on an aircraft cockpit display according to one embodiment of the present application.

FIG. 2 illustrates an example wind speed and direction graphical representation interface in the form of a compass, according to one embodiment of the present application.

FIG. 3 illustrates an example environmental block diagram of a system for graphically indicating wind speed and direction on an aircraft cockpit display according to one embodiment of the present application.

Detailed Description

The scheme of the application relates to a graphical aircraft wind speed and direction indicating scheme, and provides a new method and a new system for indicating wind speed and direction on an aircraft cockpit display, so that a unit can know wind speed and direction information more intuitively and conveniently and assists in flying operation.

First, an example flow chart of a method for graphically indicating wind speed and direction on an aircraft cockpit display according to one embodiment of the present application is shown in FIG. 1.

As shown, first, instep 110, the system first displays a compass graphic as a background map, the compass is circular, and 8 typical directions (0 °, 45 °, 90 °, 135 °, 180 °, 225 °, 270 °, 315 °, 360 °) are marked on the wind direction dial at the outer circle of the compass graphic as a basic scale.

While on the inner circle of the compass the current aircraft nose direction (heading) can be marked using, for example, a small aircraft icon.

The reason for adopting the compass concept is that:

firstly, the method is consistent with the indication of the existing radio navigation station, and ambiguity caused by multiple modes of the airplane is avoided;

secondly, if the functions are required to be expanded subsequently, the navigation station can be combined for indication, so that multifunctional indication is realized.

By providing a compass graph as a background graph and presenting wind speed and wind direction data and a corresponding graphical representation based on the compass in each subsequent step, the display of the wind speed and wind direction information is clearer and more visualized.

In some embodiments, the compass may include two modes of operation, which may indicate either a true wind direction or a switched mode to indicate a relative wind direction depending on the mode. In different modes, the outer circle scale has different meanings. Specifically, when in the "true wind" mode, the 0 scale indicates the true north direction, and in the "relative wind" mode, the 0 scale indicates the handpiece direction. Two working modes are adopted, so that the switching of the machine set personnel can be more convenient as required.

Subsequently, at step 120, the system may receive wind speed and wind direction data from an external data source. The external data source may be, for example, a Flight Management System (FMS) and/or an Inertial Reference System (IRS). In the priority of use of the data source, the flight management system > the inertial reference system, that is, the inertial reference system is generally adopted as the data source only when the flight management system works abnormally.

The reason is that the original wind speed and wind direction data are output by an Inertial Reference System (IRS), the aircraft generally has at least 2-3 sets of IRS, and if 3 sets of IRS exist, the Flight Management System (FMS) can simultaneously receive the data output by the 3 sets of IRS, and then outputs comprehensive data after internal calculation so as to eliminate individual difference as much as possible. In this case, if there is a problem with 1 IRS, the output result of FMS will not be affected in principle. Unless the FMS system itself fails, then the system will fall back on its own, requiring the data from the IRS output to be used secondarily.

In step 130, wind speed and wind direction values are displayed on the compass, based on the received wind speed and wind direction data.

For example, the values of the wind speed and the wind direction may be displayed in a wind speed and wind direction value display area below the small airplane icon of the inner circle. The displayed values of wind speed and wind direction may be continuously updated based on newly received wind speed and wind direction data to reflect the current wind speed and wind direction.

Moreover, in some embodiments, to be able to distinguish between different data sources, the system may identify the displayed wind speed and direction values in differentiated colors, for example, when the data source is a flight management system, the displayed wind speed and direction values may be green (representing that the data source is a flight management system, and the wind speed and direction values are safe and reliable); and when the data source is an inertial reference system, the displayed value is magenta (representing that the data source is an inertial reference system at this time, and the wind speed and direction values are not verified by the FMS system and may be problematic).

Next, in step 140, a corresponding wind sock graphic (also referred to as a "wind direction indication arrow") is generated and displayed on the compass, based on the received wind speed and wind direction data.

In this scenario, the wind direction arrow is represented by a visual icon of the windsock, which extends from the windsock mouth (inner circle) (indicating "wind coming") to the windsock tail end (outer circle), and finally the arrow points to the corresponding scale of the windsock dial on the outer circle, indicating "wind going". The wind direction can be visually and clearly represented by the wind direction bag, the wind direction bag is an visualized icon close to a wind direction bag in reality, and the problem that ambiguity easily occurs in existing direction representation is solved.

The scale pointed by the arrow of the wind direction bag is determined according to the received wind direction data, and can change the direction continuously along with the newly received wind direction data so as to reflect the real-time change of the wind direction.

And the windsock itself may be hollow.

In some preferred embodiments, however, the body of the windsock may also be filled to reflect more information. For example, the filling form may include the following two ways:

1) the windsock can be filled with one color in an equal proportion of transparency depending on the wind speed. For example, gray may be used for padding. When the wind speed is 0 knots, the transparency of the gray filling is 100% (i.e. unfilled, completely transparent), whereas as the wind speed increases, the transparency of the gray filling becomes less and less, the windsock as a whole assumes a more and more gray color, until the transparency remains 0 when the wind speed exceeds a certain limit (e.g. XX knots, which can be set as required). The grey color above is merely an illustration, and the pilot or designer may choose other colors to fill in according to his or her own needs.

Therefore, the wind speed can be easily and simultaneously estimated while the wind direction is checked only by observing the depth of the filling color of the wind direction bag, and the wind speed value displayed by the inner ring of the compass does not need to be specially noticed, so that the scheme is more visual.

2) The body of the wind sock can be filled with different colors according to the wind speed. For example, when the windsock body is colorless, the wind speed is 0 knots, and when the body turns yellow, the wind speed reaches YY knots, and when the wind speed continues to increase to XX knots, the filling color turns red (XX knots and YY knots, which can be set as needed). The selection of the different fill colors described above is merely exemplary, and in fact, the technician or pilot may freely match the respective wind speed thresholds and the respective colors as desired.

The basic method of graphically indicating the wind speed and direction is completed.

A graphical representation interface of an example wind speed and direction in the form of the compass described above according to one embodiment of the present application is shown in fig. 2. As shown, the circular compass provides a wind direction dial marked with eight basic scales on its outer rim. A small aircraft icon is displayed on its inner circle with the nose position corresponding to the heading. And a wind speed/wind direction display area is arranged below the airplane icon, so that the current wind speed and wind direction numerical information can be displayed. Between the inner and outer rings, a wind direction indicating arrow (also called "wind sock") in the form of a wind sock is displayed, the arrow end of which points to the position of a certain scale (here 90 °) of the wind dial to graphically indicate the wind direction.

The number of basic scales on the wind direction dial is generally 8, which is not suitable for too many, and small scales without numerical value marks (such as small scales marked once a degree) can be further divided among the basic scales. The specific orientation of the windsock corresponds to the actual wind direction received, with an accuracy in the range of about 5 deg. taking into account the wind direction data jitter. That is, the windsock may point to these 8 basic scales when pointed specifically, but may also point to other non-scale marked locations, such as 65 °, 140 °, 260 °, 330 °, and so on. For example, assuming a wind direction of 65 °, although the scale has no corresponding value at this time (since it is not a basic scale), the pilot can learn the wind direction from the small scale indicated by the arrow of the windsock. And specific numerical values are displayed in a wind speed and wind direction numerical value display area of the inner ring of the compass.

It will be appreciated by the skilled person that the exemplary directions may not be limited to these eight basic scales, but may also comprise more or less basic scales. This can be noted according to flight requirements.

It should be understood that the method provides only one of the most basic graphical indication schemes and that various improvements may exist based thereon.

For example, as previously mentioned, the compass may have two modes of operation, a "true wind" mode or a "relative wind" mode. The pilot can switch between the two working modes according to own habits and requirements. The graphical representation of the wind speed and direction also differs when different modes of operation are employed.

In particular, the method may further comprise the step of selecting a compass mode of operation, for example, the pilot may select between a "true wind" mode or a "relative wind" mode.

1) If the current operation mode is selected to be the "true wind direction" mode, the compass graphics are displayed instep 110, so that the head of the small airplane icon on the inner circle of the compass is always directed upwards, and the dial on the outer circle is correspondingly rotated according to the heading of the airplane, so that the 0 scale is always directed towards the true north direction. How much the dial rotates depends on the heading of the aircraft. At the moment, the scale over against the nose is a course angle, namely, the scale of the dial plate corresponds to the course of the airplane in the true wind direction. The arrows of the windsock are indicated in terms of wind direction degrees, for example, if the wind direction data indicates that a true north wind is blowing (a true north wind is the wind coming from the true north), then in the windsock pattern used, the large mouth corresponds to the incoming wind and the small tip corresponds to the outgoing wind, so that the large mouth is facing 0 and the small mouth 180 degrees.

2) If the current working mode is the 'relative wind direction' mode, when the compass graph is displayed instep 110, the head of the small airplane icon on the inner circle of the compass is always directed upwards, and meanwhile, the 0 scale of the dial on the outer circle is also always directed upwards, so that rotation does not occur, namely, the scale of the dial corresponds to the airplane head. At this time, the arrow of the windsock indicates that the direction is to be simultaneously related to the heading of the aircraft in addition to being based on the wind direction data. The basic formula for calculating the direction indicated by the arrow of the windsock is "wind direction-heading", i.e. for example when the wind direction is north wind and the heading of the aircraft is 90 °, then the wind direction is sideways wind for the aircraft, so that the windsock is large-opening towards 270 ° and small-tip towards 90 °, i.e. as shown in fig. 2.

It should be understood that this is not to say that both modes of operation are necessary, and indeed only one of the modes of operation is provided to enable the patterning scheme of the present application.

It should also be understood that the method flow shown in fig. 1 is continuously executed during the operation phase of the aircraft, i.e., the windsock arrows and the displayed wind speed and direction values are continuously updated to reflect the wind speed and direction experienced by the aircraft in real time.

An example environmental block diagram of a system for graphically indicating wind speed and direction on an aircraft cockpit display according to one embodiment of the present application is shown in FIG. 3

As shown, the system 330 includes, among other things, adata source selector 331, abackground display module 332, a wind speed and direction value display module 333, a windsock generation anddisplay module 334, anoutput module 335, and anoperational mode selector 336.

It should be understood that the various modules may be implemented by programming existing systems on the aircraft, or by programming firmware, software, or hardware. The various modules may communicate information with each other via wired/wireless communication links. Here, detailed description is omitted.

First, as previously described, the system 330 may receive wind speed and direction data from external data sources, such as the Flight Management System (FMS)310 and/or the Inertial Reference System (IRS) 320. Thus, to enable selection between external data sources, the system 330 provides adata source selector 331.

Data source selector 331 is configured for switching between flight management system 310 andinertial reference system 320 to receive wind speed and direction data therefrom. It should be understood that thedata source selector 331 is optional because thedata source selector 331 is provided only to facilitate manual selection of data sources by the pilot, but in practice the system may switch data sources automatically, for example, depending on the priority of the data sources (priority of flight management system > priority of inertial reference system). Specifically, the system generally has the flight management system 310 as the default data source, that is, the system will use theinertial reference system 320 as the data source only when the flight management system is operating abnormally.

Thebackground display module 332 is configured to display a compass graph as a background map, the compass graph is a circle, and 8 typical directions (0 °, 45 °, 90 °, 135 °, 180 °, 225 °, 270 °, 315 °, 360 °) are marked on the dial of the outer circle. And the current aircraft nose direction (heading) can be marked on its inner circle using, for example, a small aircraft icon.

A wind speed and direction value display module 333 configured to display wind speed and direction values on the compass. For example, the values of the wind speed and wind direction may be displayed below a small airplane icon in the inner circle. The displayed values of wind speed and wind direction may be continuously updated based on newly received wind speed and wind direction data to reflect the current wind speed and wind direction.

A windsock generation anddisplay module 334 configured to generate and display a corresponding windsock graphic on the compass based on the received wind speed and wind direction data. In this scheme, the wind direction arrow is represented by the visual icon of the windsock, which extends from the windsock mouth (inner circle) (indicating "wind coming") to the windsock tail end (outer circle), and finally the arrow points to the corresponding scale of the dial of the outer circle, indicating "wind going". The scale pointed by the arrow of the wind direction bag is determined according to the received wind direction data, and can change the direction continuously along with the newly received wind direction data so as to reflect the real-time change of the wind direction.

Anoutput module 335 configured to provide the data generated by the various modules in the system 330 to thecockpit display 340 for displaying the corresponding graphics and data.

In a preferred embodiment, the system 330 further includes an operatingmode selector 336. The operatingmode selector 336 is configured to enable the pilot to switch between two operating modes, a "true wind" mode and a "relative wind" mode of the compass. The pilot can switch between the two working modes according to own habits and requirements. The graphical representation of the wind speed and direction also differs when different modes of operation are employed. For a detailed description of these two modes of operation, reference is made to the description above. It should be understood that this is not to say that both modes of operation are necessarily provided, and indeed only one of the modes of operation may be provided to enable the patterning scheme of the present application. The provision of multiple compass operating modes is merely to enable the pilot to have the ability to select a mode that is more in line with his habits and needs.

While various embodiments have been described above, it should be understood that they have been presented by way of example only, and not limitation. Persons skilled in the relevant art(s) will recognize that various changes may be made in form and detail without departing from the spirit and scope of the invention, as defined by the appended claims. Thus, the breadth and scope of the present invention disclosed herein should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.

Claims (13)

Translated fromChinese

1.一种用于在飞机驾驶舱显示器上图形化指示风速风向的方法，包括：1. A method for graphically indicating wind speed and direction on an aircraft cockpit display, comprising:显示一个罗盘的图形作为背景图；Display a compass graphic as a background image;从外部数据源接收风速和风向数据；Receive wind speed and direction data from external data sources;根据所接收的风速和风向数据，在所述罗盘上显示风速和风向数值；以及Displaying wind speed and wind direction values on the compass based on the received wind speed and wind direction data; and根据所接收的风速和风向数据，生成相应的风向袋并将其显示在所述罗盘上。Based on the received wind speed and wind direction data, a corresponding windsock is generated and displayed on the compass.2.如权利要求1所述的方法，其特征在于，所述方法在飞机的运行过程中持续执行，因此，所述风向袋和显示的风速和风向数值会持续更新以实时反映飞机经历的风速和风向。2. The method of claim 1, wherein the method is continuously performed during the operation of the aircraft, so the windsock and the displayed wind speed and wind direction values are continuously updated to reflect the wind speed experienced by the aircraft in real time and wind direction.3.如权利要求1所述的方法，其特征在于，所述罗盘包括：3. The method of claim 1, wherein the compass comprises:位于外圈的风向刻度盘，在其上标有八个基本刻度：0°、45°、90°、135°、180°、225°、270°、315°、360°；The wind direction dial on the outer ring is marked with eight basic scales: 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315°, 360°;位于内圈的飞机图标，其机头位置与航向对应；The aircraft icon located in the inner circle, its nose position corresponds to the heading;位于所述飞机图标下方的风速/风向显示区域，用于显示当前的风速和风向数值信息；并且a wind speed/wind direction display area located below the aircraft icon for displaying current wind speed and wind direction numerical information; and其中所述风向袋被显示在所述内圈和外圈之间，其箭头端指向了所述风向刻度盘的与风向对应的刻度；Wherein the windsock is displayed between the inner ring and the outer ring, and its arrow end points to the scale corresponding to the wind direction of the wind direction dial;其中除了所述八个基本刻度之外，根据飞行需求，所述基本刻度还能包括其他刻度。In addition to the eight basic scales, the basic scales can also include other scales according to flight requirements.4.如权利要求3所述的方法，其特征在于，所述罗盘包括两种工作模式可供飞行员选择：4. The method of claim 3, wherein the compass comprises two operating modes for the pilot to select:1)“真风向”模式：在该模式下，使得罗盘内圈的飞机图标的机头始终朝正上，而外圈的刻度盘则会根据飞机的航向进行相应地旋转，以使得0刻度始终对着真北方向；和1) "True Wind" mode: In this mode, the nose of the airplane icon on the inner circle of the compass always faces upwards, and the dial on the outer circle will rotate accordingly according to the heading of the airplane, so that the 0 scale is always facing true north; and2)“相对风向”模式：在该模式下，使得罗盘内圈的飞机图标的机头始终朝正上，同时外圈的刻度盘的0刻度也始终朝正上，而不会发生旋转，从而表盘刻度与飞机机头对应，其中所述风向袋的箭头所指示的表盘刻度为“风向-航向”。2) "Relative wind direction" mode: In this mode, the nose of the aircraft icon on the inner circle of the compass always faces upwards, and the 0 scale of the dial on the outer The dial scale corresponds to the nose of the aircraft, wherein the dial scale indicated by the arrow of the windsock is "wind direction - heading".5.如权利要求1所述的方法，其特征在于，所述风向袋采用空心形式；或者5. The method of claim 1, wherein the windsock is in the form of a hollow; or所述风向袋采用填充形式；The windsock is in the form of filling;其中所述填充形式包括：Wherein the filling form includes:1)根据风速大小，以等比例透明度用一种颜色来实心化地填充所述风向袋；1) according to the size of the wind speed, the windsock is filled solidly with a color with equal proportion transparency;2)根据风速大小，使用不同的颜色对所述风向袋进行填充。2) Fill the windsock with different colors according to the wind speed.6.如权利要求1所述的方法，其特征在于，所述外部数据源包括飞行管理系统和惯性基准系统，并且所述飞行管理系统的优先级高于所述惯性基准系统的优先级。6. The method of claim 1, wherein the external data source includes a flight management system and an inertial reference system, and wherein the flight management system has a higher priority than the inertial reference system.7.如权利要求6所述的方法，其特征在于，为了能够区分不同的外部数据源，所述方法还包括：在显示风速和风向数值时，采用差异化的颜色来标识来自不同外部数据源的风速和风向数值。7. The method according to claim 6, wherein, in order to be able to distinguish different external data sources, the method further comprises: when displaying wind speed and wind direction values, using differentiated colors to identify data from different external data sources wind speed and direction values.8.一种用于在飞机驾驶舱显示器上图形化指示风速风向的系统，包括：8. A system for graphically indicating wind speed and direction on an aircraft cockpit display, comprising:背景显示模块，被配置用于显示一个罗盘的图形作为背景图；The background display module is configured to display a compass graphic as a background image;数据源选择器，被配置用于从外部数据源中选择并接收风速和风向数据；a data source selector configured to select and receive wind speed and direction data from an external data source;风速和风向数值显示模块，被配置用于根据所接收的风速和风向数据，在所述罗盘上显示风速和风向数值；a wind speed and wind direction value display module configured to display the wind speed and wind direction values on the compass according to the received wind speed and wind direction data;风向袋生成和显示模块，被配置用于根据所接收的风速和风向数据，生成相应的风向袋并将其显示在所述罗盘上；以及a windsock generation and display module configured to generate and display on the compass a corresponding windsock based on the received wind speed and direction data; and输出模块，被配置用于将所述系统中各个模块所生成的数据提供给驾驶舱显示器以显示相应的图形和数据。An output module is configured to provide data generated by various modules in the system to a cockpit display for displaying corresponding graphics and data.9.如权利要求8所述的系统，其特征在于，所述外部数据源包括飞行管理系统和惯性基准系统，所述数据源选择器可选择使用来自所述飞行管理系统的风速和风向数据还是来自所述惯性基准系统的风速和风向数据。9. The system of claim 8, wherein the external data sources include a flight management system and an inertial reference system, and wherein the data source selector selects whether to use wind speed and direction data from the flight management system or Wind speed and direction data from the inertial reference system.10.如权利要求8所述的系统，其特征在于，所述罗盘包括：10. The system of claim 8, wherein the compass comprises:位于外圈的风向刻度盘，在其上标有八个基本刻度：0°、45°、90°、135°、180°、225°、270°、315°、360°；The wind direction dial on the outer ring is marked with eight basic scales: 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315°, 360°;位于内圈的飞机图标，其机头位置与航向对应；The aircraft icon located in the inner circle, its nose position corresponds to the heading;位于所述飞机图标下方的风速/风向显示区域，用于显示当前的风速和风向信息；并且a wind speed/wind direction display area located below the aircraft icon for displaying current wind speed and wind direction information; and其中所述风向袋被显示在所述内圈和外圈之间，其箭头端指向了所述风向刻度盘的与风向对应的刻度；Wherein the windsock is displayed between the inner ring and the outer ring, and its arrow end points to the scale corresponding to the wind direction of the wind direction dial;其中除了所述八个基本刻度之外，根据飞行需求，所述基本刻度还能包括其他刻度。In addition to the eight basic scales, the basic scales can also include other scales according to flight requirements.11.如权利要求9所述的系统，其特征在于，所述系统还包括工作模式选择器，被配置用于选择所述罗盘的工作模式，所述工作模式包括：11. The system of claim 9, further comprising an operating mode selector configured to select an operating mode of the compass, the operating mode comprising:1)“真风向”模式：在该模式下，使得罗盘内圈的飞机图标的机头始终朝正上，而外圈的刻度盘则会根据飞机的航向进行相应地旋转，以使得0刻度始终对着真北方向；和1) "True Wind Direction" mode: In this mode, the nose of the aircraft icon on the inner circle of the compass always faces upwards, while the dial on the outer circle will rotate accordingly according to the heading of the aircraft, so that the 0 scale is always facing true north; and2)“相对风向”模式：在该模式下，使得罗盘内圈的飞机图标的机头始终朝正上，同时外圈的刻度盘的0刻度也始终朝正上，而不会发生旋转，从而表盘刻度与飞机机头对应，其中所述风向袋的箭头所指示的表盘刻度为“风向-航向”。2) "Relative wind direction" mode: In this mode, the nose of the airplane icon on the inner circle of the compass always faces upwards, and the 0 scale of the dial on the outer The dial scale corresponds to the nose of the aircraft, wherein the dial scale indicated by the arrow of the windsock is "wind direction - heading".12.如权利要求8所述的系统，其特征在于，所述风向袋采用空心形式；或者12. The system of claim 8, wherein the windsock is in the form of a hollow; or所述风向袋采用填充形式；The windsock is in the form of filling;其中所述填充形式包括：Wherein the filling form includes:1)根据风速大小，以等比例透明度用一种颜色来实心化地填充所述风向袋；1) according to the size of the wind speed, the windsock is filled solidly with a color with equal proportion transparency;2)根据风速大小，使用不同的颜色对所述风向袋进行填充。2) Fill the windsock with different colors according to the wind speed.13.一种存储有指令的计算机可读存储介质，当所述指令被执行时使得机器执行如权利要求1-7中任一项所述的方法。13. A computer-readable storage medium storing instructions that, when executed, cause a machine to perform the method of any of claims 1-7.

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