Pilot pilot data calculation system

Abstract

The invention provides a pilot piloting data calculation system, which comprises a data input module used for inputting original condition data; the single data calculation module is used for calculating all single data required by navigation; the route data comprehensive calculation module is used for performing comprehensive calculation according to the input data and the single data to generate a navigation data table card, a navigation map operation map and a navigation plan map; the display module is used for displaying a navigation data table card, a navigation map operation map and a navigation plan map; wherein the navigation map operation map provides a dynamic simulation navigation process and a deviation modification function. The navigation data calculation system provided by the invention is high in calculation efficiency, fast in chart generation, vivid in dynamic simulation image, and real-time and accurate in deviation data revision, can comprehensively improve the ground navigation preparation work efficiency and the air navigation calculation capability, and plays a supporting role in the overall improvement of the flight capability.

Description

Technical Field

[0001] The present invention relates to the field of aviation flight, and particularly to a pilot navigation data calculation system. Background Art

[0002] In the current aviation field, pilots mainly rely on traditional manual methods for in-air navigation data calculation, including means such as pen calculation and ruler measurement, and use tools such as navigation slide rules, vector rulers, and wind meters for approximate calculation. There are many deficiencies in this traditional calculation method. For example, obtaining data for each flight route requires more than a dozen manual calculation steps, consuming a large amount of time and energy; due to inevitable human errors in the manual measurement and calculation process, these errors will gradually accumulate as the number of calculation steps increases, resulting in inaccurate final results; manually drawing navigation operation maps is not only slow but also difficult to ensure accuracy, further affecting the preparation quality and efficiency of flight tasks; the heavy navigation calculation work requires pilots to spend a large amount of time in the ground preparation stage, thus reducing the time for actual flight training, seriously restricting the improvement of flight ability and efficiency.

[0003] In summary, the existing navigation data calculation methods can no longer meet the requirements of modern aviation for high precision and high efficiency, and there is an urgent need for a new technical solution to improve this situation. Summary of the Invention

[0004] In view of the problems existing in the prior art, a pilot navigation data calculation system is provided. By establishing a navigation calculation mathematical model, automatic continuous comprehensive calculation and automatic generation of navigation charts are realized through a program, and at the same time, dynamic simulation of the navigation process and instant revision function of navigation process deviation data are realized.

[0005] The technical solution adopted by the present invention is as follows: A pilot navigation data calculation system, the system includes:

[0006] A data input module for inputting original condition data, where the original condition data includes departure airport information, route basic data, landing airport information, and meteorological condition information;

[0007] A single-item data calculation module for calculating all single-item data required for navigation;

[0008] A route data comprehensive calculation module for comprehensively calculating the input original condition data and single-item data to generate a navigation data table card, a navigation map operation map, and a navigation plan map;

[0009] A display module for displaying the navigation data table card, the navigation map operation map, and the navigation plan map, where the navigation map operation map provides a dynamic simulation of the navigation process and a deviation modification function.

[0010] In a possible implementation, the system further includes a mobile data processing device, which is used to execute touch screen input functions, external menu keyboard and numeric keypad input functions, and voice recognition functions. The device is also provided with a handheld strap, an anti-slip fixing bracket, and a fixing strap.

[0011] In a possible implementation, the single-item data calculation module includes drift angle calculation, true airspeed calculation, drift angle positive / negative value determination, and related basic data calculation.

[0012] In a possible implementation, the route data comprehensive calculation module includes:

[0013] Calculating by combining single-item data with original condition data;

[0014] Filling the calculated data into a pre-designed pilot data card template to obtain a pilot data table card;

[0015] Generating a standard pilot plan chart according to the calculated data, including flight segment number, distance, course, time, heading to fly, and airspeed information;

[0016] Directly drawing a route data chart on the built-in map according to the input coordinate point data or selected points and the calculated data to generate a pilot map operation chart.

[0017] In a possible implementation, the drift angle calculation method is as follows:

[0018]

[0019] Where W is the fixed ground speed of the route, U is the wind speed, and FJ is the wind angle.

[0020] In a possible implementation, the true airspeed calculation method is as follows:

[0021]

[0022] Where W is the fixed ground speed of the route, U is the wind speed, and FJ is the wind angle.

[0023] In a possible implementation, the drift angle positive / negative value determination method is: FJ = FX 航 - CHX, where FX 航 is the wind direction angle and CHX is the magnetic course;

[0024] The range of the wind angle FJ is 0° - ±180°. When the wind angle is greater than 180°, 360° should be subtracted. When the wind angle is less than -180°, 360° should be added;

[0025] After calculating the absolute value of the drift angle PL, then determine the positive / negative of the drift angle PL according to the positive / negative of FJ:

[0026] When 0° < FJ < 180°, the drift is defined as a positive value, i.e., "+PL".

[0027] When -180° < FJ < 0°, the drift is defined as a negative value, i.e., "-PL".

[0028] In a possible implementation, the dynamic simulation of the navigation process in the navigation map operation chart is specifically as follows: A simulated position cursor is generated on the operation chart, the position of the aircraft is simulated on the operation map according to the calculated speed data, and the departure timing and leg timing buttons are set to display the flight time and the position of the aircraft. Among them, the current position of the cursor is S 当前已飞 = W * t, S 当前已飞 is the distance of the real-time cursor from the starting point of the leg timing, W is the ground speed, and t is the time obtained from the leg timing.

[0029] In a possible implementation, the deviation revision process in the navigation map operation chart is specifically as follows:

[0030] The operation chart provides buttons for revising the estimated time of arrival and the position deviation distance. After inputting the revision data, new data for the planned flight route is directly generated, and at the same time, the new simulated position and the planned route are displayed. Specifically:

[0031] The calculation method for the revised estimated time of arrival is:

[0032]

[0033] T 预达时刻 is the newly input time to reach the end of the leg, S 当前已飞 = W * t 计时 ; Self-input is also supported. Here, S 已飞 and S 未飞 are forced adjustment windows, and S 航段 = S 已飞 + S 未飞 is used to accurately set the remaining distance to calculate the new ground speed;

[0034] According to W 新 calculate the drift angle PL, course HX 新应飞 , true airspeed V 真 , indicated airspeed V 表空 again:

[0035]

[0036] CHX 应 = HX - ΔC - PL

[0037]

[0038] The calculation method for the position deviation distance is as follows:

[0039] Calculate the flown flight segment S 已 = S 当前， where S 当前 = W × t 计时 ;

[0040] Calculate the unflown flight segment S 未 = S - S 已 ;

[0041] Calculate the track correction angle and the new route based on the input left - right deviation distance:

[0042] The track correction angle XZ = PH + PI

[0043] The new route HX 新应飞 = HX 原应飞 ± XZ

[0044] where, In the calculation of the new route, add the track correction angle for a left deviation and subtract the track correction angle for a right deviation.

[0045] In a possible implementation manner, after inputting meteorological conditions and basic route data into the data input module, a navigation speed triangle schematic diagram is calculated, generated, and displayed to visually identify the reliability of the calculated data.

[0046] The main solution of the present application and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted and claimed in the present application; and in the present application, (each non - conflicting selection) can be freely combined with each other and with other selections. Those skilled in the art can understand that there are various combinations according to the prior art and common general knowledge after understanding the solution of the present application, all of which are the technical solutions to be protected in the present application and will not be enumerated here.

[0047] Compared with the prior art, the beneficial effects of adopting the above - mentioned technical solution are as follows: The navigation data calculation system proposed by the present invention has high calculation efficiency, fast chart generation, vivid dynamic simulation, and real - time and accurate deviation data revision, which can comprehensively improve the efficiency of ground navigation preparation work and the air navigation calculation ability, and play a supporting role in the overall improvement of flight ability. Brief Description of the Drawings

[0048] Figure 1 It is a schematic diagram of the composition of the navigation data calculation system proposed by the present invention.

[0049] Figure 2 It is a schematic diagram of single - item data calculation in an embodiment of the present invention.

[0050] Figure 3 It is a schematic diagram of comprehensive route data calculation in an embodiment of the present invention.

[0051] Figure 4 In this embodiment, a standard navigation plan chart is automatically generated based on calculation data.

[0052] Figure 5 After the meteorological conditions and basic route data are input into the data input module of the system proposed in this embodiment, a schematic diagram of the navigation speed triangle is calculated, generated, and displayed. Detailed implementation manners

[0053] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar modules or modules with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application. On the contrary, the embodiments of the present application include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0054] In the prior art, the current means for calculating air navigation data by pilots at home and abroad mainly rely on manual pen calculation and ruler measurement, and use tools such as navigation calculators, vector rulers, and wind gauges for approximate calculation. It takes more than a dozen steps of manual calculation to obtain the basic data of each flight route, with low calculation efficiency and large cumulative errors in ruler measurement; the speed of manually drawing navigation operation maps is slow and inaccurate. The navigation calculation work takes up a lot of time and energy of pilots, seriously restricting the improvement of flight capabilities.

[0055] Therefore, in order to solve the above technical problems, the embodiments of the present application propose a pilot navigation data calculation system, which can establish a navigation calculation mathematical model, write the mathematical model formula into a computer program, and realize functions such as automatic continuous comprehensive calculation, automatic generation of navigation charts, dynamic simulation of the navigation process, and instant revision of deviation data in the navigation process. In addition, a direct printing function is also designed to support directly printing the generated data card tables, operation maps, and navigation plan charts into paper materials, which are convenient to carry and reuse, and comprehensively improve the efficiency of ground navigation preparation work and air navigation calculation capabilities.

[0056] See Figure 1 , Figure 1 which is a schematic diagram of the composition of the navigation data calculation system proposed by the present invention. This pilot navigation data calculation system divides the navigation data calculation into two major parts: single-item data and comprehensive calculation, and automatically generates navigation data table cards, plan charts, operation charts, etc. according to the calculation results.

[0057] The navigation data calculation system includes:

[0058] A data input module for inputting original condition data;

[0059] Single data calculation module, which is used to calculate all single data required for navigation;

[0060] Route data comprehensive calculation module, which conducts comprehensive calculations based on the input data and single data to generate a navigation data table card, a navigation map operation chart, and a navigation plan chart;

[0061] Display module, which is used to display the navigation data table card, the navigation map operation chart, and the navigation plan chart;

[0062] Among them, the navigation map operation chart provides functions of dynamically simulating the navigation process and modifying deviations.

[0063] The original condition data mainly includes departure airport information, route basic data, landing airport information, and meteorological condition information. The route basic data provides an input coordinate data mode and a route basic data mode.

[0064] The navigation data calculation system can improve the efficiency and accuracy of navigation calculations. It includes four modules: the data input module is used to input the original condition data, including departure airport information, route basic data (supporting the input coordinate data mode and the route basic data mode), landing airport information, and meteorological condition information; the single data calculation module is responsible for calculating all single data required for navigation to ensure the accuracy of each step of the calculation; the route data comprehensive calculation module conducts comprehensive calculations based on the input original condition data and single calculation results to generate a navigation data table card, a navigation map operation chart, and a navigation plan chart; the display module is used to display these charts and provides functions of dynamically simulating the navigation process and modifying deviations on the navigation map operation chart to help the pilot adjust the flight path in real time to ensure flight safety and accuracy.

[0065] Dynamically simulate the navigation implementation process, and the simulated position cursor moves the aircraft position on the operation map according to the calculated speed data. The module is provided with an outbound timing button and a leg timing button to display the flight time and the simulated situation of the aircraft position in real time, which is convenient for the pilot to comprehensively familiarize himself / herself with and understand the navigation process before flight.

[0066] The route basic data instant correction calculation function can provide two functions: time correction calculation and position deviation correction calculation. By setting two correction buttons, the user can input the estimated arrival time or the left / right deviation distance, and the module will automatically generate new flight route data (such as a new flight heading, airspeed), and display the new simulated position predetermined route. At this time, the original basic data of the data table card and the plan chart remain unchanged, ensuring that the pilot can adjust the flight plan in time.

[0067] The pilot navigation data calculation system further includes a mobile data processing device, which is used to execute touch screen input functions, external menu keyboard and numeric keypad input functions, and voice recognition functions. The device is also provided with a handheld strap, an anti-slip and anti-falling fixing bracket, and a fixing strap.

[0068] System software: Installed on a self-designed and developed mobile data processing device, it is used to execute various data processing and navigation calculation tasks during flight. The device is equipped with touch screen input functions, external menu keyboard and numeric keypad input functions, and voice recognition functions to ensure that the pilot can still operate conveniently even when wearing gloves. The research is equipped with a handheld strap for easy handheld carrying and use on the ground. To adapt to the use under high load conditions on the aircraft, the device is equipped with a three-dimensional fixed anti-slip and anti-falling bracket to prevent the device from slipping under high acceleration or bumpy conditions. In addition, the device is also equipped with a fixing strap, which can be tied to the pilot's thigh near the knee joint to further prevent the device from slipping and ensure easy operation during flight. In addition, a voice recognition input function has also been developed, which can directly input data through the voice operation interface, liberating the pilot's hands and facilitating in-air use.

[0069] During flight, the pilot can input flight data through the touch screen or external keyboard for real-time navigation and data processing. At the same time, the fixing strap and anti-slip and anti-falling bracket are used to ensure the safety of the device. During ground preparation, the handheld strap facilitates the pilot to carry and operate the device on the ground for various pre-takeoff preparations.

[0070] See Figure 2 , Figure 2 which is a schematic diagram of single-item data calculation in an embodiment of the present invention. The single-item data calculation module can cover all single-item data required for navigation, including setting scale calculation, altitude conversion, temperature calculation, magnetic heading calculation, speed-time-distance calculation, airspeed calculation, true airspeed calculation, turning radius calculation, turning arc length calculation, turning time calculation, drift calculation, deviation angle revision calculation, navigation speed triangle schematic diagram display calculation, etc. The single-item data calculation module proposed in this embodiment uses mathematical formulas for calculation through computer programs. Compared with the traditional pilot calculation method, which uses a navigation ruler for calculation and reads the scale data of the navigation ruler according to a certain ruler type method, with inaccurate ruler measurement and accumulated errors, it has the advantages of fast and accurate.

[0071] Specifically:

[0072] (1) Drift angle calculation:

[0073] Among them, W is the fixed ground speed of the route, U is the wind speed, and FJ is the wind angle, all of which are input known condition data.

[0074] In the existing drift angle calculation ( The situation where various factors change dynamically needs to be considered in the calculation of the airspeed (V), and it is a rough calculation with the disadvantage of being inaccurate. The drift angle calculation in the present application is applicable to the situation where the ground speed has been determined, and only the drift angle needs to be adjusted according to the wind speed and wind angle. It is more suitable for rapid calculation under known fixed conditions, which is different from the rough calculation in the prior art.

[0075] (2) Positive and negative determination of the drift angle:

[0076] The positive and negative determination of the drift angle depends on the angle of the wind angle: FJ = FX 航 - CHX, where FX 航 is the wind direction angle, and CHX is the magnetic course;

[0077] The range of the wind angle FJ is 0° - ±180°. When the wind angle is greater than 180°, 360° should be subtracted. When the wind angle is less than -180°, 360° should be added;

[0078] Therefore, after calculating the absolute value of the drift angle PL, the positive and negative of the drift angle PL are determined according to the positive and negative of FJ:

[0079] When 0° < FJ < 180°, the drift is set as positive, that is, "+PL";

[0080] When -180° < FJ < 0°, the drift is set as negative, that is, "-PL".

[0081] The positive and negative determination of the drift angle in the present application is determined by the angle range of the wind angle, strictly restricting the wind angle to ensure the consistency and accuracy of the calculation results, which is different from determining the drift according to the left and right of the wind direction in the prior art.

[0082] (3) True airspeed calculation:

[0083] Among them, W is the fixed ground speed of the route, U is the wind speed, and FJ is the wind angle, all of which are known condition data input.

[0084] Since the true airspeed calculation in the prior art (approximately equal to W = V + UcosFJ, V = W - UcosFJ) is also a rough calculation and inaccurate, the true airspeed calculation in the present application is completely different from the true airspeed calculation in the prior art, thereby improving the accuracy of the algorithm.

[0085] (4) Scale conversion:

[0086] In this embodiment, the scale size is preferably designed as 1 / 100,000, 1 / 500,000, 1 / 1,000,000.

[0087] Actual distance

[0088] (5) Ground and air temperature calculation: t 空 = t地 -6.5×10-3×H 标 ,H 标 represents the standard height (or altitude), in meters.

[0089] (6) True course and magnetic course conversion: CX = ZX - ΔC, where ΔC represents magnetic declination.

[0090] (7) Speed conversion

[0091] True airspeed and indicated airspeed conversion: where H 标修 represents the standard corrected height or corrected sea-level pressure height, and t H is the temperature correction factor.

[0092] True airspeed and true indicated airspeed conversion:

[0093]

[0094] (8) Distance, speed, and time conversion

[0095] T = s / v, where the distance s is in kilometers, the speed v is in kilometers per hour; the time unit is shown as XX hours XX minutes XX seconds, and entering two of the three quantities will immediately display the third.

[0096] (9) Turning radius calculation

[0097]

[0098] where the speed V is in kilometers per hour, the bank angle γ is in degrees, and the radius R is in meters.

[0099] (10) Turning time

[0100]

[0101] where the speed V is in kilometers per hour, the turning angle α is in degrees, and the time t is in seconds.

[0102] (11) Turning arc length calculation

[0103]

[0104] where the speed V is in kilometers per hour, the turning angle α is in degrees, the turning arc length S is in meters, and the bank angle γ is in degrees.

[0105] The foregoing single-item calculation methods can already meet the conventional navigation data calculations. If there are other calculation requirements, just add the calculation formulas to the system.

[0106] Further, see Figure 3 , Figure 3The figure is a schematic diagram of the route data comprehensive calculation in one embodiment of the present invention. The route data comprehensive calculation module can process various original conditions and single data in flight, and generate three key outputs required by pilots: navigation data table cards, navigation plan charts (route schematics), and navigation operation maps. The module ensures that all output information is complete and in a standardized format, and supports direct printing to improve the pilot's operating efficiency in flight missions.

[0107] Fill the calculation results into the standard navigation data table card to obtain the navigation data table card, which provides complete flight data for the pilot to quickly check. Automatically generate a standard route diagram as a navigation plan map, support multiple scale selection and editing functions, including detailed information such as segment number, distance, and heading. Draw a navigation operation map based on the input coordinate points, including the highest point of the terrain, 5-minute markings, etc., to ensure flight safety and accuracy.

[0108] For the navigation data table card, the result data generated by the calculation is directly filled into the pre-designed standard navigation data card template used by pilots to generate a navigation data table card.

[0109] In this embodiment, the pilot data card template is stored in the system in advance, and data can be filled in when needed. This embodiment also provides a pilot data card template, as shown in the pilot data card template in Table 1 below:

[0110] Table 1 Navigation data card template

[0111]

[0112]

[0113] The navigation data form card finally generated has complete information and standardized format. It can be displayed on the display module and support direct printing for pilots to use.

[0114] For the pilot plan chart, see Figure 4 , Figure 4 For this embodiment, a standard navigation plan chart is automatically generated by calculating data. The chart can display the optimal scale, and five scales of 1:100,000, 200,000, 250,000, 500,000, and 1 million can be selected. The graphic identification symbols are standard and the information window information is complete, including the segment number, distance, heading, time, flight heading, airspeed and other information.

[0115] For the pilot map operation diagram, this embodiment pre-implants map data in the system, and directly draws the route data diagram on the map according to the input coordinate point data or the selected points and the calculated data, so as to generate the pilot map operation diagram, and the scale can be selected (1:100,000, 200,000, 250,000, 500,000, 1,000,000), and all the identifications such as route data, symbol identification standards, information window data, 5-minute markings, and terrain highest points are complete, and the graphics drawing standards support direct printing for pilots to use.

[0116] Through system automated processing and pre-implanted map data, the generation and printing functions of the pilot map work chart achieve high-precision, efficient and standardized output. It not only greatly shortens the preparation time and reduces human errors, but also supports flexible scale selection and real-time updates, ensuring that each output meets flight requirements and can be directly used for pilot operations, far exceeding the efficiency and reliability of traditional manual drawing methods.

[0117] In the navigation map operation diagram, a simulation position cursor is provided to simulate the navigation process, specifically:

[0118] Generate a simulated position cursor on the operation map, simulate the movement of the aircraft position on the operation map according to the calculated speed data, and set the departure timing and segment timing buttons to display the flight time and aircraft position;

[0119] Among them, the current cursor position is S 当前已飞 =W*t,S 当前已飞 is the distance between the real-time cursor and the starting point of the segment timing, W is the ground speed, and t is the time obtained by the segment timing.

[0120] At the same time, two correction calculation functions, time correction and position deviation correction, are provided in the navigation map operation chart. That is, the expected time and position deviation distance correction buttons are provided in the operation chart. After entering the revised data, the new flight route data is directly generated, and the new simulated position scheduled route is displayed at the same time; at this time, the original basic data of the card and the plan chart remain unchanged.

[0121] Among them, the specific process of arriving at the revision is expected to be: Where W 新 is the new ground speed, i.e. the speed of the aircraft relative to the ground, which is recalculated based on the new estimated arrival time and the distance flown, t 计时 T is the total time from takeoff or the start of the flight segment to the current moment. 预达时刻 is the newly entered time to reach the end of the segment, S 当前已飞 =W*t 计时 ; It also supports self-entry, here set S 已飞 and S 未飞 Force adjustment of the window, and S 航段 =S已飞 +S 未飞 , which is used to accurately set the remaining distance to be flown in order to calculate the new ground speed;

[0122] According to W 新 Recalculate the drift angle PL and the course HX 新应飞 , the true airspeed V 真 , the indicated airspeed V 表空 : CHX 应 = HX - ΔC - PL,

[0123]

[0124] Correspondingly, the process of revising the position deviation distance is as follows:

[0125] 1. Calculate the flown flight segment S 已 = S 当前， where S 当前 = W × t 计时 ;

[0126] 2. Calculate the remaining flight segment S 未 = S - S 已 ;

[0127] 3. Calculate the track correction angle and the new course according to the input left - right deviation distance:

[0128] The track correction angle XZ = PH + PI

[0129] The new course HX 新应飞 = HX 原应飞 ± XZ

[0130] where, In the calculation of the new course, when it is to the left, add the track correction angle, when it is to the right, subtract the track correction angle, PH is the yaw angle, and PI is the track deviation angle.

[0131] See Figure 5 , Figure 5 which is a schematic diagram of the navigation speed triangle generated and displayed by the system proposed in this embodiment after the meteorological conditions and the basic route data are input into the data input module, and is used to visually identify the reliability of the calculated data.

[0132] Among them, the main data relied on for displaying the schematic diagram of the navigation speed triangle are the previously calculated W, V, U, the direction and value of the vector data, the angles of PL, FJ, etc.

[0133] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0134] First, calculations are performed using a computer and mathematical formulas, which are fast and accurate, avoiding errors in traditional methods. For example, the drift angle and true airspeed are calculated directly through mathematical formulas, significantly improving data accuracy.

[0135] Second, through a new error-free calculation method, such as new formulas for drift and true airspeed, the data accuracy is greatly improved, providing a more scientific and reliable solution.

[0136] Third, by using programming, precise continuous calculations, automatic chart generation, and dynamic simulation functions are achieved, significantly reducing the calculation time and improving accuracy. The system can also simulate the flight position in real time based on the calculated data.

[0137] Fourth, it has touch screen and external button input modes and voice recognition input mode, which are convenient for in-air use, and is equipped with various carrying and fixing methods to ensure safety and reliability. This design enables pilots to perform navigation calculations efficiently in various environments, enhancing operation flexibility and reliability.

[0138] Fifth, it has achieved a leap from manual step-by-step calculations to automatic intelligent calculations, solving the problems of low efficiency and coarseness in traditional methods. Calculating a flight route only takes a few minutes, and all steps are automatically completed and support real-time continuous calculations. The generated charts can be directly printed or run on a mobile phone, facilitating pilots' use and greatly improving the comprehensive capabilities of flight and navigation.

[0139] In summary, the navigation data calculation system proposed by the present invention has achieved a leap from manual step-by-step calculations of navigation data to automatic, intelligent, comprehensive, and continuous calculations by computer, solving the long-term problems of low efficiency and coarseness in navigation calculation methods for pilots at home and abroad, and providing accurate, efficient, and fast calculation means for pilots' in-air navigation. Currently, it is estimated that it takes 30 to 40 minutes for a pilot to calculate the data of a flight route. Using this system, after inputting the original condition data into the computer, all steps of the calculation and the drawing of the chart are automatically completed, and it supports real-time continuous calculations when the condition data changes; the chart can be directly printed for pilots to use directly, or it can be run on Android system platforms such as mobile phones, facilitating flight personnel to carry and use in the air, and greatly improving the comprehensive capabilities of flight and navigation.

[0140] For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances; the accompanying drawings in the embodiments are used to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are some, rather than all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0141] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A pilot navigation data calculation system, characterized in that: The system includes: A data input module for inputting original condition data, where the original condition data includes departure airport information, route basic data, arrival airport information, and meteorological condition information; A single-item data calculation module for calculating all single-item data required for navigation; A route data comprehensive calculation module that comprehensively calculates the input original condition data and single-item data to generate a navigation data table card, a navigation map operation chart, and a navigation plan chart; A display module for displaying the navigation data table card, the navigation map operation chart, and the navigation plan chart, where the navigation map operation chart provides a dynamic simulation of the navigation process and a deviation modification function.

2. The pilot navigation data calculation system according to claim 1, characterized in that: The system further includes a mobile data processing device for performing touch screen input functions, external menu keyboard and numeric keyboard input functions, and voice recognition functions. The device is also provided with a handheld strap, an anti-slip fixing bracket, and a fixing strap.

3. The pilot navigation data calculation system according to claim 1, characterized in that: The single-item data calculation module includes drift angle calculation, true airspeed calculation, drift angle positive / negative value determination, and related basic data calculation.

4. The pilot navigation data calculation system according to claim 3, characterized in that: The route data comprehensive calculation module includes: Calculating by combining single-item data with original condition data; Filling the corresponding calculated data into a pre-designed navigation data card template to obtain a navigation data table card; Generating a standard navigation plan chart according to the calculated data, including flight segment number, distance, course, time, heading to fly, and airspeed information; Directly drawing a route data chart on the built-in map according to the input coordinate point data or selected points and the calculated data to generate a navigation map operation chart.

5. The pilot navigation data calculation system according to claim 3, characterized in that: The drift angle calculation method is: Where, W is the fixed ground speed of the route, U is the wind speed, and FJ is the wind angle.

6. The pilot navigation data calculation system according to claim 3, characterized in that: The true airspeed calculation method is: Where, W is the fixed ground speed of the route, U is the wind speed, and FJ is the wind angle.

7. The pilot navigation data calculation system according to claim 5, characterized in that: The method for determining the positive and negative values ​​of the deflection angle is: FJ = FX 航 -CHX, where FX 航 is the wind direction angle, CHX is the magnetic heading; The range of the wind angle FJ is 0° - ±180°. When the wind angle is greater than 180°, 360° should be subtracted. When the wind angle is less than -180°, 360° should be added; After calculating the absolute value of the drift angle PL, then determine the positive / negative of the drift angle PL according to the positive / negative of FJ: When 0° < FJ < 180°, the drift is defined as positive, that is, "+PL"; When -180° < FJ < 0°, the drift is defined as negative, that is, "-PL".

8. The pilot navigation data calculation system according to claim 4, characterized in that: The dynamic simulation pilot process in the pilot map operation diagram is specifically as follows: generating a simulated position cursor on the operation diagram, simulating the movement of the aircraft position on the operation diagram according to the calculated speed data, and setting the departure timer and the flight segment timer buttons to display the flight time and the aircraft position, wherein the current cursor position is S 当前已飞 =W*t,S 当前已飞 is the distance between the real-time cursor and the starting point of the segment timing, W is the ground speed, and t is the time obtained by the segment timing.

9. The pilot navigation data calculation system according to claim 8, characterized in that: The specific process of deviation revision in the navigation map operation chart is as follows: The operation chart provides pre-arrival time and position deviation distance revision buttons. After inputting the revision data, new heading-to-fly route data is directly generated, and at the same time, a new simulated position scheduled route is displayed. Specifically: The calculation method for estimated arrival revision is: T 预达时刻 is the newly entered time to reach the end of the segment, S 当前已飞 =W*t 计时 ; It also supports self-entry, here set S 已飞 and S 未飞 Force adjustment of the window, and S 航段 =S 已飞 +S 未飞 , used to accurately set the unflown distance in order to calculate the new ground speed; According to W 新 Recalculate the drift angle PL and heading HX 新应飞 , True Speed ​​V 真 , airspeed V 表空 : CHX 应 =HX-ΔC-PL The calculation method for position deviation distance revision is: Calculate the flown segments S 已 =S 当前， Where S 当前 =W×t 计时 ; Calculate the unflown segment S 未 =SS 已 ; Calculating the track correction angle and the new route according to the input left / right deviation distance: The track correction angle XZ = PH + PI New route HX 新应飞 =HX 原应飞 ±XZ in, In the calculation of the new route, the left deviation + track correction angle, and the right deviation - track correction angle.

10. The pilot navigation data calculation system according to claim 4, characterized in that: After inputting the meteorological conditions and route basic data in the data input module, a navigation speed triangle schematic diagram is calculated, generated, and displayed to visually identify the reliability of the calculated data.

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