Height indication method and device for vertical navigation display area of airplane

Abstract

The invention provides a method and a device for indicating the height of a vertical navigation display area of an airplane, and compared with a conventional method for indicating the height of the vertical navigation display area of the airplane, the method and the device have the advantages that the height indication scale tape design and the flight height indication design are adopted; the invention provides a more refined indication method in various aspects of graphic height indication design of information such as flight vertical flight path, airport and waypoint, and aims to solve the problem that a traditional aircraft vertical navigation display area height indication method cannot meet the display requirement of an existing aircraft. Therefore, a pilot can more accurately obtain the current flight height and the height information such as the related reference height shown by the information graph such as the flight vertical flight path, the airport and the waypoint during flight, and the reliability and the safety of flight are improved.

Description

Technical Field

[0001] The present invention belongs to the field of aviation technology, and relates to a method and device for height indication in the vertical navigation display area of an aircraft. Background Art

[0002] The vertical navigation display area presents information diagrams such as the flight vertical path, airports, waypoints, etc. based on the instantaneous calculation of the current flight plan by the flight management system, and is used for flight guidance and performance reference. When a pilot is flying an aircraft, the pilot should be able to obtain the current flight altitude of the aircraft and the relevant reference altitudes of information diagrams such as the flight vertical path, airports, waypoints, etc. through the height indication in the vertical navigation display area.

[0003] When designing the height indication in the vertical navigation display area of traditional transport aircraft, a form with fixed scale indications from the minimum flight altitude to the maximum flight altitude is often adopted, and the height indication accuracy is fixed, with relatively low indication accuracy. With the development of aircraft design technology, the performance of aircraft has been significantly improved, and pilots pursue more refined flights. The height indication in the vertical navigation display area of traditional transport aircraft does not meet the current flight situation, with too low indication accuracy, which is likely to cause pilots to misread height information such as the current flight altitude and the relevant reference altitudes of information diagrams such as the flight vertical path, airports, waypoints, etc. during flight. Summary of the Invention

[0004] The present invention provides a method and device for height indication in the vertical navigation display area of an aircraft. Compared with the traditional method for height indication in the vertical navigation display area of an aircraft, a more refined indication method is given from multiple aspects such as the design of the height indication scale band, the design of the flight height indication, and the design of the height indication of information diagrams such as the flight vertical path, airports, waypoints, etc., aiming to solve the problem that the traditional method for height indication in the vertical navigation display area of an aircraft does not meet the current display requirements of aircraft, enabling pilots to obtain more accurate height information such as the current flight altitude and the relevant reference altitudes of information diagrams such as the flight vertical path, airports, waypoints, etc. during flight, and improving the reliability and safety of flight.

[0005] The first aspect of the present invention provides a method for height indication in the vertical navigation display area of an aircraft, including:

[0006] S0. Obtain the height indication scale band accuracy value P1 at the current moment of the aircraft and the height indication scale band accuracy value P0 at the previous moment, and calculate the first value X1 at the current moment and the first value X0 at the previous moment of the aircraft according to the minimum scale value and the accuracy value. At the same time, obtain the flight altitude H1 at the current moment and the flight altitude H0 at the previous moment of the aircraft;

[0007] S1. Determine whether P1 = P0; if so, enter S2; if not, when P1 > P0, enter S3, and when P1 < P0, enter S4;

[0008] S2. Determine whether H1 >= H0; if yes, go to S21; if no, go to S22;

[0009] S3. Determine whether H1 = H0; if yes, go to S31; if no, when H1 > H0, go to S32, and when H1 < H0, go to S33;

[0010] S4. Determine whether H1 >= H0; if yes, go to S41; if no, go to S42;

[0011] S21. Determine whether H1 is less than X1; if yes, the height indication scale band remains stationary, and the aircraft symbol moves upward to the position indicating H1; if no, when H0 is greater than or equal to X1, the aircraft symbol remains stationary, and the height indication scale band scrolls vertically downward to make the aircraft symbol indicate the H1 position; when H0 is less than X1, the aircraft symbol first moves upward to the position where the aircraft symbol indicates X1, and then the height indication scale band scrolls vertically downward to make the aircraft symbol indicate the H1 position;

[0012] S22. Determine whether H0 is less than X1; if yes, the height indication scale band remains stationary, and the aircraft symbol moves downward to the position indicating H1; if no, when H1 is greater than or equal to X1, the aircraft symbol remains stationary, and the height indication scale band scrolls vertically upward to make the aircraft symbol indicate the H1 position; when H1 is less than X1, the height indication scale band first scrolls upward to the position where the aircraft symbol indicates X1, and then the aircraft symbol moves vertically downward to the position indicating H1;

[0013] S31. The scale value of the height indication scale band changes according to P1. At the same time, determine whether H1 is greater than or equal to X1; if yes, the aircraft symbol remains stationary, and the height indication scale band scrolls to the position where the aircraft symbol indicates H1 while the precision value changes; if no, when H0 > X0, the height indication scale band first scrolls to the position where the aircraft symbol indicates X1 while the precision value changes, and then the aircraft symbol moves vertically downward to the position indicating H1; when H0 <= X0, the aircraft symbol moves vertically downward to the position indicating H1 while the height indication scale band changes with the precision value;

[0014] S32, the scale value of the altitude indication scale belt changes according to P1. When H1 is greater than or equal to X1 and H0 is greater than or equal to X0, the aircraft symbol is fixed, and the altitude indication scale belt scrolls to the position where the aircraft symbol indicates H1 while the accuracy value changes; when H1 is less than X1 and H0 is less than X0, the aircraft symbol moves vertically to the position where the altitude indication scale belt changes with the accuracy value; when H1 is greater than or equal to X1 and H0 is less than X0, while the altitude indication scale belt changes with the accuracy value, the aircraft symbol first moves vertically upward to the position where the altitude indication scale belt indicates X1, and then scrolls to the position where the aircraft symbol indicates H1; when H1 is less than X1 and H0 is greater than or equal to X0, while the altitude indication scale belt changes with the accuracy value, the altitude indication scale belt first scrolls to the position where the aircraft symbol indicates X1, and then the aircraft symbol moves vertically downward to the position where the aircraft symbol indicates H1;

[0015] S33, the scale value of the altitude indication scale changes according to P1, and it is determined whether H1 is greater than or equal to X1. If so, the aircraft symbol is fixed, and the altitude indication scale scrolls to the position where the aircraft symbol indicates H1 while the accuracy value changes; if not, when H0 is less than or equal to X0, the aircraft symbol moves vertically to the position where the altitude indication scale changes with the accuracy value, and when H0 is greater than X0, the altitude indication scale scrolls first to the position where the aircraft symbol indicates X1 while the altitude indication scale changes with the accuracy value, and then the aircraft symbol moves vertically downward to the position where the aircraft symbol indicates H1;

[0016] S41, the scale value of the altitude indication scale belt changes according to P1, and at the same time, it is determined whether H1 is less than or equal to X1. If so, the altitude indication scale belt is fixed, and the aircraft symbol moves to the position indicating H1 while the accuracy value changes; if not, when H0 is less than X0, the aircraft symbol first moves vertically upward to the position indicating X1 while the accuracy value changes, and the altitude indication scale belt then rolls to the position indicating H1 of the aircraft symbol; when H0 is greater than or equal to X0, the aircraft symbol is fixed, and the altitude indication scale belt rolls to the position indicating H1 while the altitude indication scale belt changes with the accuracy value;

[0017] S42, the scale value of the altitude indication scale belt changes according to P1. When H1 is greater than or equal to X1 and H0 is greater than or equal to X0, the aircraft symbol is fixed, and the altitude indication scale belt scrolls to the position where the aircraft symbol indicates H1 while the accuracy value changes; when H1 is less than X1 and H0 is less than X0, the aircraft symbol moves vertically to the position where the altitude indication scale belt changes with the accuracy value; when H1 is greater than or equal to X1 and H0 is less than X0, while the altitude indication scale belt changes with the accuracy value, the aircraft symbol first moves vertically upward to the position where the altitude indication scale belt indicates X1, and then scrolls to the position where the aircraft symbol indicates H1; when H1 is less than X1 and H0 is greater than or equal to X0, while the altitude indication scale belt changes with the accuracy value, the altitude indication scale belt first scrolls to the position where the aircraft symbol indicates X1, and then scrolls vertically downward to the position where the aircraft symbol indicates H1;

[0018] The first numerical value is determined according to the minimum scale value of the display area and the scale accuracy value currently set by the pilot.

[0019] Optionally, the method further includes:

[0020] When the altitude indicated by the altitude indication information icon is within the current display area of ​​the altitude indication scale, the altitude indication information icon is indicated on the corresponding scale;

[0021] When the altitude indicated by the altitude indication information icon is outside the current display area of ​​the altitude indication scale band, the altitude indication information icon stays at the top or bottom of the altitude indication scale band in the form of 1 / 2 of the icon.

[0022] Optionally, the altitude indication information icon includes: a preset altitude pointer and a minimum air pressure altitude pointer.

[0023] Optionally, the method further includes:

[0024] When it is detected that the pilot has adjusted the compass range, the altitude indication scale band accuracy value P1 at the current moment is determined based on the adjusted compass range.

[0025] Optionally, the altitude indication scale band accuracy value P1 is proportional to the compass range.

[0026] Optionally, the first value is the sum of the minimum scale value and three times the precision value.

[0027] Optionally, the method further includes:

[0028] When the height and horizontal distance of the indicator icon with horizontal distance information are within the current display area of ​​the vertical navigation display area, it is displayed.

[0029] Optionally, the indication diagrams with horizontal distance information include: vertical flight path, airport, waypoint.

[0030] The second aspect of the present invention provides a height indicating device for the vertical navigation display area of an aircraft, which is used to execute the method described in any one of the first aspects.

[0031] Compared with the traditional height indicating method for the vertical navigation display area of an aircraft, the present invention provides a more refined indicating method from multiple aspects such as the design of the height indicating scale band, the design of the flight height indication, and the height indication design of information diagrams such as the flight vertical path, airport, and waypoint, etc., to solve the problem that the traditional height indicating method for the vertical navigation display area of an aircraft does not meet the current display requirements of aircraft, enabling the pilot to obtain more accurate height information such as the current flight height and the relevant reference heights of information diagrams such as the flight vertical path, airport, and waypoint during flight, and improving the reliability and safety of flight. Brief Description of the Drawings

[0032] Figure 1 It is a schematic diagram for the accuracy design of the height indicating scale band;

[0033] Figure 2 It is a schematic diagram for the flight height indication design;

[0034] Figure 3 It is a schematic diagram for the display of an information diagram with horizontal distance information;

[0035] Figure 4 It is a schematic diagram for the display of the height indication information diagram. Detailed Embodiment

[0036] The following will make a detailed description of the height indicating method and device for the vertical navigation display area of the aircraft provided by the present invention with reference to the drawings.

[0037] As Figure 1-4 shown, the present invention provides a height indicating method for the vertical navigation display area of an aircraft, including:

[0038] S0. Obtain the height indicating scale band accuracy value P1 at the current moment of the aircraft and the height indicating scale band accuracy value P0 at the previous moment, and calculate the first value X1 at the current moment of the aircraft and the first value X0 at the previous moment according to the minimum scale value and the accuracy value. At the same time, obtain the flight height H1 at the current moment of the aircraft and the flight height H0 at the previous moment;

[0039] S1. Judge whether P1 = P0; if so, enter S2; if not, when P1 > P0, enter S3, and when P1 < P0, enter S4;

[0040] S2. Judge whether H1 >= H0; if so, enter S21; if not, enter S22;

[0041] S3. Determine whether H1 = H0; if so, go to S31; if not, when H1 > H0, go to S32, and when H1 < H0, go to S33;

[0042] S4. Determine whether H1 >= H0; if so, go to S41; if not, go to S42;

[0043] S21. Determine whether H1 is less than X1; if so, the height indication scale band remains stationary, and the aircraft symbol moves upward to the position indicating H1; if not, when H0 is greater than or equal to X1, the aircraft symbol remains stationary, and the height indication scale band scrolls vertically downward to make the aircraft symbol indicate the H1 position; when H0 is less than X1, the aircraft symbol first moves upward to the position where the aircraft symbol indicates X1, and then the height indication scale band scrolls vertically downward to make the aircraft symbol indicate the H1 position;

[0044] S22. Determine whether H0 is less than X1; if so, the height indication scale band remains stationary, and the aircraft symbol moves downward to the position indicating H1; if not, when H1 is greater than or equal to X1, the aircraft symbol remains stationary, and the height indication scale band scrolls vertically upward to make the aircraft symbol indicate the H1 position; when H1 is less than X1, the height indication scale band first scrolls upward to the position where the aircraft symbol indicates X1, and then the aircraft symbol moves vertically downward to the position indicating H1;

[0045] S31. The scale value of the height indication scale band changes according to P1. At the same time, determine whether H1 is greater than or equal to X1; if so, the aircraft symbol remains stationary, and the height indication scale band scrolls to the position where the aircraft symbol indicates H1 while the precision value changes; if not, when H0 > X0, the height indication scale band first scrolls to the position where the aircraft symbol indicates X1 while the precision value changes, and then the aircraft symbol moves vertically downward to the position indicating H1; when H0 <= X0, the aircraft symbol moves vertically downward to the position indicating H1 while the height indication scale band changes with the precision value;

[0046] S32, the scale value of the altitude indication scale belt changes according to P1. When H1 is greater than or equal to X1 and H0 is greater than or equal to X0, the aircraft symbol is fixed, and the altitude indication scale belt scrolls to the position where the aircraft symbol indicates H1 while the accuracy value changes; when H1 is less than X1 and H0 is less than X0, the aircraft symbol moves vertically to the position where the altitude indication scale belt changes with the accuracy value; when H1 is greater than or equal to X1 and H0 is less than X0, while the altitude indication scale belt changes with the accuracy value, the aircraft symbol first moves vertically upward to the position where the altitude indication scale belt indicates X1, and then scrolls to the position where the aircraft symbol indicates H1; when H1 is less than X1 and H0 is greater than or equal to X0, while the altitude indication scale belt changes with the accuracy value, the altitude indication scale belt first scrolls to the position where the aircraft symbol indicates X1, and then the aircraft symbol moves vertically downward to the position where the aircraft symbol indicates H1;

[0047] S33, the scale value of the altitude indication scale changes according to P1, and it is determined whether H1 is greater than or equal to X1. If so, the aircraft symbol is fixed, and the altitude indication scale scrolls to the position where the aircraft symbol indicates H1 while the accuracy value changes; if not, when H0 is less than or equal to X0, the aircraft symbol moves vertically to the position where the altitude indication scale changes with the accuracy value, and when H0 is greater than X0, the altitude indication scale scrolls first to the position where the aircraft symbol indicates X1 while the altitude indication scale changes with the accuracy value, and then the aircraft symbol moves vertically downward to the position where the aircraft symbol indicates H1;

[0048] S41, the scale value of the altitude indication scale belt changes according to P1, and at the same time, it is determined whether H1 is less than or equal to X1. If so, the altitude indication scale belt is fixed, and the aircraft symbol moves to the position indicating H1 while the accuracy value changes; if not, when H0 is less than X0, the aircraft symbol first moves vertically upward to the position indicating X1 while the accuracy value changes, and the altitude indication scale belt then rolls to the position indicating H1 of the aircraft symbol; when H0 is greater than or equal to X0, the aircraft symbol is fixed, and the altitude indication scale belt rolls to the position indicating H1 while the altitude indication scale belt changes with the accuracy value;

[0049] S42, the scale value of the altitude indication scale belt changes according to P1. When H1 is greater than or equal to X1 and H0 is greater than or equal to X0, the aircraft symbol is fixed, and the altitude indication scale belt scrolls to the position where the aircraft symbol indicates H1 while the accuracy value changes; when H1 is less than X1 and H0 is less than X0, the aircraft symbol moves vertically to the position where the altitude indication scale belt changes with the accuracy value; when H1 is greater than or equal to X1 and H0 is less than X0, while the altitude indication scale belt changes with the accuracy value, the aircraft symbol first moves vertically upward to the position where the altitude indication scale belt indicates X1, and then scrolls to the position where the aircraft symbol indicates H1; when H1 is less than X1 and H0 is greater than or equal to X0, while the altitude indication scale belt changes with the accuracy value, the altitude indication scale belt first scrolls to the position where the aircraft symbol indicates X1, and then scrolls vertically downward to the position where the aircraft symbol indicates H1;

[0050] The first numerical value is determined according to the minimum scale value of the display area and the scale accuracy value currently set by the pilot.

[0051] Exemplarily, when the altitude indicated by the altitude indication information icon is within the current display area of ​​the altitude indication scale, the altitude indication information icon is indicated on the corresponding scale;

[0052] When the altitude indicated by the altitude indication information icon is outside the current display area of ​​the altitude indication scale band, the altitude indication information icon stays at the top or bottom of the altitude indication scale band in the form of 1 / 2 of the icon.

[0053] Among them, the altitude indication information icon includes: preset altitude pointer and minimum air pressure altitude pointer.

[0054] Exemplarily, when it is detected that the pilot has adjusted the compass range, the altitude indication scale band accuracy value P1 at the current moment is determined according to the adjusted compass range. In this embodiment, the altitude indication scale band accuracy value P1 is proportional to the compass range.

[0055] Exemplarily, the first value is the sum of the minimum scale value and three times the precision value.

[0056] Exemplarily, when the height and horizontal distance of the indication icon with horizontal distance information are within the current display area of ​​the vertical navigation display area, it is displayed. Wherein, the indication icon with horizontal distance information includes: a vertical flight path, an airport, and a waypoint.

[0057] In a specific embodiment of the present invention:

[0058] 1. Altitude indication scale design

[0059] like Figure 1As shown, the altitude indication scale display range = accuracy value * 4, the minimum scale value is -1000m, and the maximum scale value is 12000m.

[0060] The accuracy of the altitude indication scale can be changed with the compass range, specifically:

[0061] When the full range of the compass is less than or equal to 10km, the accuracy value of the altitude indication scale is 100m;

[0062] When the full range of the compass is equal to 20km, the accuracy value of the altitude indication scale is 200m;

[0063] When the full range of the compass is equal to 40km, the accuracy value of the altitude indication scale is 500m;

[0064] When the full range of the compass is 80km, the accuracy of the altitude indication scale is 1000m;

[0065] When the full range of the compass is greater than or equal to 160km, the accuracy value of the altitude indication scale is 2000m.

[0066] like Figure 2 As shown, the height indication scale can be changed dynamically, and the specific display form is:

[0067] When the current aircraft altitude is less than: minimum scale value (-1000m) + current scale accuracy value * 3, the altitude indication scale is fixed, the scale value starts from -1000, and the aircraft symbol moves up and down vertically to indicate the current aircraft altitude; when the current aircraft altitude is greater than or equal to: minimum scale value (-1000m) + current scale division value * 3, the aircraft symbol is fixed at 3 / 4 of the length of the altitude indication scale, and the altitude indication scale scrolls to indicate the current aircraft altitude in real time.

[0068] 2. Flight altitude indication design

[0069] like Figure 2 As shown, the triangle symbol represents the aircraft symbol, which indicates the current position of the aircraft.

[0070] The aircraft symbol is fixed horizontally, with the right triangle vertex located at the 0km position on the horizontal scale. The aircraft symbol can be moved up and down vertically, and the altitude indicator scale corresponding to the right angle base is the aircraft's current altitude.

[0071] The aircraft symbol can be moved vertically upward to a maximum of 3 / 4 of the length of the altitude indication scale. When the altitude increases, the aircraft symbol remains fixed and the altitude indication scale moves.

[0072] 3. Design of altitude indication for flight vertical path, airport, waypoint and other information icons

[0073] like Figure 3 As shown, information icons with horizontal distance information such as the flight vertical path, airport, waypoint, etc. are displayed in the information icon display area in the figure. The information icon display changes with the accuracy value of the altitude indication scale band, and the content outside the information icon display area is not displayed.

[0074] like Figure 4 As shown in the figure, the altitude indication information icons such as the preset altitude pointer and the minimum pressure altitude pointer are displayed on the altitude indication scale. When the indicated altitude is within the altitude indication scale area, the information icon is indicated on the corresponding scale; when the indicated altitude is outside the altitude indication scale area, the information icon stays at the top or bottom of the altitude indication scale in the form of 1 / 2.

[0075] Exemplarily, the 1 / 2 form may be changed from a solid line to a dotted line.

Claims

1. A method for indicating the altitude of a vertical navigation display area of ​​an aircraft, characterized in that: Including: S0. Obtain the altitude indication scale band accuracy value P1 at the current moment of the aircraft and the altitude indication scale band accuracy value P0 at the previous moment, calculate the first value X1 at the current moment of the aircraft and the first value X0 at the previous moment according to the minimum scale value and the accuracy value, and simultaneously obtain the flight altitude H1 at the current moment of the aircraft and the flight altitude H0 at the previous moment; S1. Judge whether P1 = P0; if so, enter S2; if not, when P1 > P0, enter S3, and when P1 < P0, enter S4; S2. Judge whether H1 >= H0; if so, enter S21; if not, enter S22; S3. Judge whether H1 = H0; if so, enter S31; if not, when H1 > H0, enter S32, and when H1 < H0, enter S33; S4. Judge whether H1 >= H0; if so, enter S41; if not, enter S42; S21. Judge whether H1 is less than X1; if so, the altitude indication scale band remains stationary, and the aircraft symbol moves upward to indicate the position of H1; if not, when H0 is greater than or equal to X1, the aircraft symbol remains stationary, and the altitude indication scale band scrolls vertically downward to make the aircraft symbol indicate the position of H1; when H0 is less than X1, the aircraft symbol first moves upward to the position where the aircraft symbol indicates X1, and then the altitude indication scale band scrolls vertically downward to make the aircraft symbol indicate the position of H1; S22. Judge whether H0 is less than X1; if so, the altitude indication scale band remains stationary, and the aircraft symbol moves downward to indicate the position of H1; if not, when H1 is greater than or equal to X1, the aircraft symbol remains stationary, and the altitude indication scale band scrolls vertically upward to make the aircraft symbol indicate the position of H1; when H1 is less than X1, the altitude indication scale band first scrolls upward to the position where the aircraft symbol indicates X1, and then the aircraft symbol moves vertically downward to indicate the position of H1; S31. The scale value of the altitude indication scale band changes according to P1. At the same time, judge whether H1 is greater than or equal to X1; if so, the aircraft symbol remains stationary, and the altitude indication scale band scrolls to the position where the aircraft symbol indicates H1 while the accuracy value changes; if not, when H0 is greater than X0, the altitude indication scale band first scrolls to the position where the aircraft symbol indicates X1 while the accuracy value changes, and then the aircraft symbol moves vertically downward to indicate the position of H1; when H0 is less than or equal to X0, the aircraft symbol moves vertically downward to indicate the position of H1 while the altitude indication scale band changes with the accuracy value; S32, the scale value of the altitude indication scale belt changes according to P1. When H1 is greater than or equal to X1 and H0 is greater than or equal to X0, the aircraft symbol is fixed, and the altitude indication scale belt scrolls to the position where the aircraft symbol indicates H1 while the accuracy value changes; when H1 is less than X1 and H0 is less than X0, the aircraft symbol moves vertically to the position where the altitude indication scale belt changes with the accuracy value; when H1 is greater than or equal to X1 and H0 is less than X0, while the altitude indication scale belt changes with the accuracy value, the aircraft symbol first moves vertically upward to the position where the altitude indication scale belt indicates X1, and then scrolls to the position where the aircraft symbol indicates H1; when H1 is less than X1 and H0 is greater than or equal to X0, while the altitude indication scale belt changes with the accuracy value, the altitude indication scale belt first scrolls to the position where the aircraft symbol indicates X1, and then the aircraft symbol moves vertically downward to the position where the aircraft symbol indicates H1; S33, the scale value of the altitude indication scale changes according to P1, and it is determined whether H1 is greater than or equal to X1. If so, the aircraft symbol is fixed, and the altitude indication scale scrolls to the position where the aircraft symbol indicates H1 while the accuracy value changes; if not, when H0 is less than or equal to X0, the aircraft symbol moves vertically to the position where the altitude indication scale changes with the accuracy value, and when H0 is greater than X0, the altitude indication scale scrolls first to the position where the aircraft symbol indicates X1 while the altitude indication scale changes with the accuracy value, and then the aircraft symbol moves vertically downward to the position where the aircraft symbol indicates H1; S41, the scale value of the altitude indication scale belt changes according to P1, and at the same time, it is determined whether H1 is less than or equal to X1. If so, the altitude indication scale belt is fixed, and the aircraft symbol moves to the position indicating H1 while the accuracy value changes; if not, when H0 is less than X0, the aircraft symbol first moves vertically upward to the position indicating X1 while the accuracy value changes, and the altitude indication scale belt then rolls to the position indicating H1 of the aircraft symbol; when H0 is greater than or equal to X0, the aircraft symbol is fixed, and the altitude indication scale belt rolls to the position indicating H1 while the altitude indication scale belt changes with the accuracy value; S42, the scale value of the altitude indication scale belt changes according to P1. When H1 is greater than or equal to X1 and H0 is greater than or equal to X0, the aircraft symbol is fixed, and the altitude indication scale belt scrolls to the position where the aircraft symbol indicates H1 while the accuracy value changes; when H1 is less than X1 and H0 is less than X0, the aircraft symbol moves vertically to the position where the altitude indication scale belt changes with the accuracy value; when H1 is greater than or equal to X1 and H0 is less than X0, while the altitude indication scale belt changes with the accuracy value, the aircraft symbol first moves vertically upward to the position where the altitude indication scale belt indicates X1, and then scrolls to the position where the aircraft symbol indicates H1; when H1 is less than X1 and H0 is greater than or equal to X0, while the altitude indication scale belt changes with the accuracy value, the altitude indication scale belt first scrolls to the position where the aircraft symbol indicates X1, and then scrolls vertically downward to the position where the aircraft symbol indicates H1; The first numerical value is determined according to the minimum scale value of the display area and the scale accuracy value currently set by the pilot.

2. The method for indicating the altitude of a vertical navigation display area of ​​an aircraft according to claim 1, characterized in that: The method further comprises: When the altitude indicated by the altitude indication information icon is within the current display area of ​​the altitude indication scale, the altitude indication information icon is indicated on the corresponding scale; When the altitude indicated by the altitude indication information icon is outside the current display area of ​​the altitude indication scale band, the altitude indication information icon stays at the top or bottom of the altitude indication scale band in the form of 1 / 2 of the icon.

3. The method for indicating the altitude of a vertical navigation display area of ​​an aircraft according to claim 2, characterized in that: The altitude indication information icons include: preset altitude pointer and minimum air pressure altitude pointer.

4. The method for indicating the altitude of a vertical navigation display area of ​​an aircraft according to claim 1, characterized in that: The method further comprises: When it is detected that the pilot has adjusted the compass range, the altitude indication scale band accuracy value P1 at the current moment is determined based on the adjusted compass range.

5. The method for indicating the altitude of a vertical navigation display area of ​​an aircraft according to claim 4, characterized in that: The altitude indication scale accuracy value P1 is proportional to the compass range.

6. The method for indicating the altitude of a vertical navigation display area of ​​an aircraft according to claim 1, characterized in that: The first value is the sum of the minimum scale value and three times the precision value.

7. The method for indicating the altitude of a vertical navigation display area of ​​an aircraft according to claim 1, characterized in that: The method further comprises: When the height and horizontal distance of the indicator icon with horizontal distance information are within the current display area of ​​the vertical navigation display area, it is displayed.

8. The method for indicating the altitude of a vertical navigation display area of ​​an aircraft according to claim 7, characterized in that: Indicator graphics with horizontal distance information include: vertical flight path, airports, and waypoints.

9. An altitude indicating device for a vertical navigation display area of ​​an aircraft, characterized in that: Used to perform the method according to any one of claims 1 to 8.

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