A method and system for simulating the inflation of a flat float balloon, and a storage medium

Abstract

The present application relates to meteorological balloon inflation control field, disclose a kind of flat drift balloon inflation quantity simulation method, system and storage medium, comprising: obtaining the measured parameter of flat drift balloon;Obtain the release parameter of flat drift balloon, the release parameter includes target flat drift height;Obtain the virtual inflation quantity of flat drift balloon;Establish the mathematical coupling model of flat drift balloon, import the measured parameter, release parameter, virtual inflation quantity, calculate the simulation state of every step length after flat drift balloon is released, the simulation state includes simulation height;The simulation height of outer balloon is judged, if the simulation height of outer balloon is less than the target flat drift height, then continue to calculate the simulation state of next step length of flat drift balloon, if the simulation height of outer balloon is greater than or equal to target flat drift height, then calculate the simulation inflation quantity of flat drift balloon.The present application solves the problem of existing inflation method waste time and instrument, low degree of automation.

Description

Technical Field

[0001] This invention relates to the field of weather balloon inflation control technology, and in particular to a method, system and storage medium for simulating the inflation volume of a horizontally floating balloon. Background Technology

[0002] A levitation balloon is a new type of meteorological balloon capable of carrying a radiosonde for upper-air meteorological observation. It consists of an outer sphere and an inner sphere located within the outer sphere's cavity. After filling both the inner and outer spheres with appropriate buoyancy gas, the system ascends under the influence of buoyancy. The outer sphere reaches its maximum volume at a certain altitude and bursts. At this point, the buoyancy of the inner sphere balances the system's own weight, causing it to float and continue carrying the radiosonde for meteorological observation.

[0003] One of the keys to a horizontally floating balloon's ability to maintain a certain altitude is achieving the appropriate inflation volume. However, the ascent process of a horizontally floating balloon involves a complex coupled process, including atmospheric models of changing atmospheric environmental parameters, equations of motion governing balloon movement and force changes, and thermodynamic models of the balloon's radiative heating process. The appropriate inflation volume cannot be determined through simple calculations. Furthermore, due to the influence of day-night and seasonal changes, the inflation volume must vary even when launching a horizontally floating balloon from the same location. Currently, people typically inflate horizontally floating balloons based on experience and then adjust the inflation volume according to the balloon's vertical trajectory until a suitable volume is found. This not only wastes time and equipment but also suffers from low automation. Summary of the Invention

[0004] This invention provides a method, system, and storage medium for simulating the inflation volume of a horizontally floating balloon, in order to solve the problems of time and equipment wastage and low automation in existing inflation methods.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] In a first aspect, the present invention provides a method for simulating the inflation volume of a horizontally floating balloon, comprising:

[0007] Acquire the measurement parameters, release parameters, and virtual inflation volume of the horizontally floating balloon, wherein the release parameters include: target horizontal floating height;

[0008] A mathematical coupling model of a horizontally floating balloon is established. The measurement parameters, the release parameters, and the virtual inflation volume are imported into the mathematical coupling model. The simulation state of the horizontally floating balloon at each step after release is calculated. The simulation state includes the simulation height.

[0009] The simulated height of the outer sphere in the floating balloon is determined. If the simulated height of the outer sphere is less than the target floating height, the simulated state of the next length of the floating balloon is calculated. If the simulated height of the outer sphere is greater than or equal to the target floating height, the simulated inflation volume of the floating balloon is calculated.

[0010] Optionally, the mathematical coupling model is a coupling of the atmospheric model, the balloon motion equations, and the thermodynamic model.

[0011] Optionally, the measurement parameters include: the weight of the inner sphere of the horizontal floating balloon, the weight of the outer sphere of the horizontal floating balloon, the load weight, and the thermodynamic parameters of the balloon skin;

[0012] The release parameters also include: release date, release time, latitude and longitude of release location, altitude of release location, and atmospheric environmental data;

[0013] The simulation states also include simulated acceleration, simulated volume, simulated temperature of the sphere skin, and simulated temperature of the internal floating gas.

[0014] Optionally, the atmospheric model is established based on the atmospheric environmental data, which includes air pressure and temperature. The atmospheric model is established in any of the following ways:

[0015] Method 1: If the atmospheric environment data includes atmospheric environment data from the ground to the upper atmosphere, an atmospheric environment model is established by interpolation or fitting.

[0016] Method 2: If the atmospheric environment data is only ground atmospheric environment data, import the ground atmospheric environment data, latitude and longitude of the release location, and altitude of the release location through a standard atmospheric model, and establish an atmospheric environment model by performing one-dimensional to three-dimensional expansion processing.

[0017] Optionally, the balloon's equation of motion is a motion model of a horizontally floating balloon in the vertical direction, neglecting the influence of the horizontal direction. Its differential equation in the vertical direction is:

[0018]

[0019] Where F is the net lift, f is the vertical drag, and m ball m is the mass of the balloon, m0 is the mass of the load, and m gas M is the mass of the gas floating inside the sphere. add It is the added inertial mass.

[0020] Optionally, the thermodynamic model includes:

[0021] Direct solar heat Q sun Ground reflected heat Q Albedo Ground infrared radiation heat QIRground Internal infrared radiation heat Q IRfilm External infrared radiation heat Q IRout Internal convective heat Q ConvInt external convective heat Q ConvExt ;

[0022] Optionally, the thermodynamic model includes the heat absorbed by the balloon, as follows:

[0023] The heat Q1 absorbed by the outer sphere before the explosion can be expressed as:

[0024] Q1 = Q sun +Q Albedo +Q IRground +Q IRfilm +Q ConvExt -Q ConvInt -Q IRout +Q inb

[0025] The heat Q2 absorbed by the inner sphere can be expressed as:

[0026] Q2 = Q IRfilm +Q ConvExt -Q CovvInt -Q IRout +Q outb

[0027] Among them, Q inb It is the infrared radiation heat from the inner sphere, Q outb It is infrared radiation heat from the outer sphere;

[0028] The heat Q absorbed by the inner sphere after the outer sphere explodes is expressed as:

[0029] Q = Q sun +Q Albedo +Q IRgrounnd +Q IRfilm +Q convExt -Q ConvInt -Q IRout .

[0030] Optionally, the method for simulating the inflation volume of a floating balloon further includes:

[0031] The measurement parameters, release parameters, and simulated inflation volume are imported into the mathematical coupling model to recalculate the simulated state of each step after the release of the horizontal floating balloon. The simulated state includes the simulated volume of the outer sphere.

[0032] The simulated volume of the outer sphere is judged. If the simulated volume of the outer sphere is less than the preset outer sphere limit volume threshold, the simulation state of the next step length of the floating balloon is calculated. If the simulated volume of the outer sphere is greater than or equal to the preset outer sphere limit volume threshold, the outer sphere is judged to explode, and the simulation state of the inner sphere for each step length thereafter is calculated.

[0033] Determine whether the simulation state of the inner sphere meets the preset threshold condition. If not, continue to calculate the simulation state of the inner sphere for the next length. If yes, determine that the inner sphere is floating and output the display parameters.

[0034] Secondly, embodiments of this application provide a simulation system for the inflation volume of a horizontally floating balloon, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of any of the methods described in the first aspect above.

[0035] Thirdly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in the first aspect.

[0036] Beneficial effects:

[0037] The invention provides a method for simulating the inflation volume of a horizontally floating balloon. By establishing a mathematically coupled model of the balloon and importing relevant parameters, the simulated inflation volume is obtained, providing a reference value for the inflation volume when launching the balloon. This solves the problem of relying on experience and historical launch results to adjust the inflation volume, which wastes time and equipment. The invention can also output display parameters of the horizontally floating balloon, such as the outer balloon's burst height, outer balloon burst time, inner balloon's horizontal floating height, and vertical trajectory, allowing for prediction of the balloon's trajectory and horizontal floating state after inflation. The horizontally floating balloon inflation volume simulation system and computer-readable storage medium provided by this invention can automatically obtain the simulated inflation volume based on the imported parameters during execution, improving automation compared to previous manual inflation adjustments. In summary, this invention solves the problems of wasted time and equipment and low automation in existing inflation methods. Attached Figure Description

[0038] Figure 1 This is one of the flowcharts for a preferred embodiment of the method for simulating the inflation volume of a horizontally floating balloon according to the present invention;

[0039] Figure 2 This is the second flowchart of the preferred embodiment of the method for simulating the inflation volume of a horizontally floating balloon according to the present invention;

[0040] Figure 3 The computer program interface for the simulation method of inflation volume of a horizontally floating balloon according to a preferred embodiment of the present invention is shown. Detailed Implementation

[0041] The technical solution of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "connected" or "linked" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up," "down," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0043] Example 1:

[0044] Please see Figure 1-2 This application provides a method for simulating the inflation volume of a horizontally floating balloon, including:

[0045] Acquire the measurement parameters, release parameters, and virtual inflation volume of the horizontally floating balloon, wherein the release parameters include: target horizontal floating height;

[0046] A mathematical coupling model of a horizontally floating balloon is established. The measurement parameters, the release parameters, and the virtual inflation volume are imported into the mathematical coupling model. The simulation state of the horizontally floating balloon at each step after release is calculated. The simulation state includes the simulation height.

[0047] The simulated height of the outer sphere in the floating balloon is determined. If the simulated height of the outer sphere is less than the target floating height, the simulated state of the next length of the floating balloon is calculated. If the simulated height of the outer sphere is greater than or equal to the target floating height, the simulated inflation volume of the floating balloon is calculated.

[0048] The simulated inflation output can be used to guide the actual inflation process of horizontally floating balloons, changing the existing inflation methods that waste time and equipment and have low automation.

[0049] The measurement parameters include: inner sphere weight, outer sphere weight, load weight, and thermodynamic parameters of the balloon skin;

[0050] The release parameters also include: release date, release time, latitude and longitude of release location, altitude of release location, and atmospheric environmental data;

[0051] The virtual inflation volume can be set by historical experience values. The purpose of obtaining these values ​​is to calculate the initial state of the floating balloon before its release, so that the mathematical coupling model can start running. The simulation state of the next step is calculated by using the simulation state of the previous step, thereby calculating the simulation state of each step after release.

[0052] The simulation parameters also include simulated acceleration, simulated volume, simulated temperature of the sphere's outer skin, and simulated temperature of the internal floating gas. These are all necessary parameters for calculating the next long-term simulation.

[0053] Until the simulated height of the outer sphere in the simulation state is greater than or equal to the target horizontal drift height, it is assumed that the outer sphere explodes and the inner sphere drifts horizontally. At this time, the internal buoyancy gas pressure of the inner sphere is equal to the external ambient air pressure. The inflation volume of the inner sphere and the outer sphere are calculated according to the ideal gas state equation based on the simulated internal buoyancy gas temperature of the inner and outer spheres, respectively. That is, the simulated inflation volume of the horizontal drifting balloon is calculated and output.

[0054] The mathematical coupling model is a coupling of the atmospheric model, the balloon motion equations, and the thermodynamic model.

[0055] The atmospheric model is established based on the atmospheric environmental data, which includes air pressure and temperature, and includes any of the following methods:

[0056] Method 1: If the atmospheric environment data includes atmospheric environment data from the ground to upper atmosphere, an atmospheric environment model can be established through interpolation or fitting. For example, commonly used radiosondes measure atmospheric environment data from the ground to upper atmosphere, but this data is discontinuous and needs to be processed into a continuous atmospheric model before it can be used. Interpolation can be performed between two intervals of data, or fitting can be performed on all the data to establish an atmospheric environment model.

[0057] Method 2: If the atmospheric environment data is only ground-level atmospheric environment data, the ground-level atmospheric environment data, the latitude and longitude of the release location, and the altitude of the release location can be imported through a standard atmospheric model. An atmospheric environment model can then be established by performing one-dimensional to three-dimensional augmentation processing. Here is an example of three-dimensional augmentation processing for temperature.

[0058] For example, the American Standard Atmospheric Model:

[0059]

[0060] In the above formula, k1 = -6.5 × 10 -3 k3 = 1 × 10 -3T0 = ​​288.15K, z is the altitude in meters. The standard atmospheric model can only reflect the one-dimensional distribution and changes of the atmosphere along the vertical direction, and cannot satisfy the horizontal distribution of atmospheric parameters that vary with latitude and longitude due to the different locations of different stations. Therefore, a three-dimensional coordinate extension of the standard atmospheric model is required.

[0061] Let the temperature, pressure, atmospheric density, and altitude of the station location be T, respectively. s p s ρ s z s Map it to the zero elevation surface T 0s =T s -k1z s Similarly, we can obtain:

[0062]

[0063] In the above formula, T 0s1 =T s -k1z s T 0s2 =T s +k1h 11 -k1z s T 10s3 =T s +k1h 11 -k1z s -k3h 20 h 11 =11km is the height of the tropopause, h 20 =20km is the height of the stratosphere. Compared with equation (1), in addition to the altitude z variable, the independent variables also include x and y variables representing the latitude and longitude coordinates of the station. Its information is implicit in T. 0s1 T 0s2 T 0s3 In the middle. Air pressure can also be expanded in three dimensions in a similar way, which will not be elaborated here.

[0064] In the above embodiments, an atmospheric environment model is established using atmospheric environment data to simulate the ambient temperature and atmospheric pressure of the horizontally drifting balloon in the real atmospheric environment during the simulation process.

[0065] The balloon's motion equation is a model of the vertical motion of a horizontally floating balloon, neglecting the influence of the horizontal direction. Its differential equation in the vertical direction is:

[0066]

[0067] Where F is the net lift, f is the vertical drag, and m ball m is the mass of the balloon, m0 is the mass of the load, and m gasM is the mass of the gas floating inside the sphere. aC2 It is the added inertial mass.

[0068] During the balloon's ascent and drift, in addition to changes in the atmospheric environment leading to variations in temperature and pressure, it is also affected by thermal processes, the main ones being the direct solar radiation Q. sun Ground reflected heat Q Albedo Ground infrared radiation heat Q IRground Internal infrared radiation heat Q IRfilm External infrared radiation heat Q IRout Internal convective heat Q ConvInt external convective heat Q ConvExt .

[0069] The above thermal process applies to a regular balloon, that is, a single balloon. The heat Q absorbed by the balloon can be expressed by the following formula:

[0070] Q = Q sun +Q Albedo +Q IRground +Q IRfilm +Q ConvExt -Q ConvInt -Q IRout (4)

[0071] The situation is different for a double-nested, horizontally floating balloon. Before the outer sphere explodes, the interaction between the outer and inner spheres must be considered. Therefore, in the thermodynamic model, the heat Q1 absorbed by the outer sphere can be expressed as:

[0072] Q1 = Q sun +Q Albeddo +Q IRground +Q IRfilm +Q ConnvExt -Q ConvInt -Q IRout +Q inb (5)

[0073] Among them, Q inb It is infrared radiation heat from the inner sphere.

[0074] The inner sphere is located inside the outer spherical cavity and can be considered to be unaffected by direct solar heat Q. sun Ground reflected heat Q Albedo Ground infrared radiation heat Q IRground Due to the influence of the inner sphere, the heat Q2 absorbed can be expressed as:

[0075] Q2 = Q IRfilm +Q ConvExt -Q ConvInt -Q IRout +Q outb (6)

[0076] Among them, Q outb It is infrared radiation heat from the outer sphere.

[0077] After the outer sphere explodes, the inner sphere is considered as an ordinary single sphere, and the heat it absorbs is expressed by formula (4).

[0078] In fact, by obtaining the simulated inflation volume of the floating balloon through the above process, it can be used to guide people in launching the floating balloon, solving the problem of wasting time and equipment in the process of finding the appropriate inflation volume; and when the floating balloon inflation volume simulation method is written into a computer program and executed by a processor, the degree of automation in launching the floating balloon can be greatly improved.

[0079] In the above method, the simulated inflation volume is calculated from the simulated internal buoyancy gas temperature at the target horizontal drift height, which in turn is calculated from the virtual inflation volume in a mathematical coupling model. This implicitly assumes that the virtual inflation volume and the simulated inflation volume have the same simulated internal buoyancy gas temperature at the target horizontal drift height. However, there are actually differences between the two, which will cause the calculated outer spherical explosion height and inner spherical horizontal drift height in the mathematical coupling model to differ slightly from the target horizontal drift height. That is, after the horizontal drift balloon is inflated with the simulated inflation volume of buoyancy gas, its outer spherical explosion height and inner spherical horizontal drift height are not entirely consistent with the target horizontal drift height. Therefore, further, in order to obtain some key parameters of the horizontal drift balloon during its ascent and horizontal drift process after being inflated with the simulated inflation volume of buoyancy gas, such as the outer spherical explosion height, the outer spherical explosion time, and the inner spherical horizontal drift height, and thus predict the ascent process of the horizontal drift balloon, this method can further perform the following steps:

[0080] The measurement parameters, release parameters, and simulated inflation volume are imported into the mathematical coupling model to recalculate the simulated state of each step after the release of the horizontally floating balloon; as mentioned above, this simulated state includes the simulated volume.

[0081] The simulated volume of the outer sphere is assessed. If the simulated volume is less than a preset outer sphere limit volume threshold, the simulated state of the next step of the drifting balloon is calculated. If the simulated volume is greater than or equal to the preset outer sphere limit volume threshold, the outer sphere is determined to have exploded and detached, leaving only the inner sphere. The simulated state of the inner sphere for each subsequent step is then calculated. This is because it is not assumed that the outer sphere explodes at the target drifting height and the inner sphere drifts horizontally; rather, the explosion height of the outer sphere is determined by comparing its simulated volume with the preset outer sphere limit volume threshold. The balloon's limit volume threshold is related to its weight and temperature, and can be calculated given its weight and temperature. The outer sphere's limit volume threshold can be calculated using the outer sphere's weight and the simulated temperature of its outer skin.

[0082] Determine whether the simulation state of the inner sphere meets the preset threshold condition. If not, return to continue calculating the simulation state of the next length of the inner sphere. If yes, determine that the inner sphere is floating and output the display parameters, and the simulation ends.

[0083] Whether the inner sphere is floating is mainly determined by the simulated acceleration and time of the inner sphere. For example, the preset threshold conditions are: the simulated acceleration of the inner sphere ≤ x m / s and the duration ≥ y s. If these conditions are met, the inner sphere is judged to be floating.

[0084] The display parameters can be set according to the user's needs, such as the outer sphere's explosion height, outer sphere's explosion time, and inner sphere's horizontal drift height, or vertical trajectory, velocity curve, and temperature curve. These display parameters allow the user to predict the trajectory and horizontal drift state of the horizontally drifting balloon after it has been filled with a simulated amount of buoyant gas.

[0085] Example 2:

[0086] Please see Figure 2-3 ,like Figure 2 As shown in the flowchart, the method includes the following steps:

[0087] S1: Obtain the measurement parameters, release parameters, and virtual inflation volume of the horizontally floating balloon.

[0088] The measurement parameters include: the weight of the inner sphere of the horizontal-floating balloon, the weight of the outer sphere of the horizontal-floating balloon, the load weight, and the thermodynamic parameters of the balloon's skin, such as... Figure 3 As shown, in this embodiment, the inner sphere of the horizontal floating balloon weighs 774g, the outer sphere weighs 584g, and the load weight is 600g. The thermodynamic parameters of the balloon skin are set internally in the program and do not need to be obtained through the user interface.

[0089] The release parameters include: target drift height, release date, release time, release location latitude and longitude, release location altitude, and atmospheric environmental data, such as... Figure 3 As shown, in this embodiment, the target drift height is 28,000m, the release date is January 15, 2021, the release time is 19:00, the latitude and longitude of the release location are the latitude and longitude of Huaihua Station, which are set inside the program and directly obtained when Huaihua Station is selected. The altitude of the release location is 259m, and the atmospheric environment data is obtained through "Import Atmospheric Model".

[0090] The virtual inflation volume is set inside the program, and its value can be obtained based on the approximate inflation volume during trial and error, with the aim of enabling the program to complete the entire process.

[0091] S2: Establish a mathematical coupling model for a horizontally floating balloon.

[0092] This mathematical coupling model includes an atmospheric model involving changes in atmospheric environmental parameters, balloon motion equations involving balloon motion and force changes, and a thermodynamic model involving heat exchange between the environment and the outer sphere, the outer sphere and the inner sphere, and the environment and the inner sphere. It is a coupling of the atmospheric model, balloon motion equations, and thermodynamic model.

[0093] S3: Simulation state of calculating the length of each step of the horizontally floating balloon.

[0094] The measurement parameters, release parameters, and virtual inflation volume are imported into the mathematical coupling model to calculate the simulated state of the horizontally floating balloon at each step after release. The simulated state includes simulated height, simulated lift, simulated acceleration, simulated volume, simulated temperature of the balloon skin, and simulated temperature of the internal floating gas.

[0095] S4: Determine whether the simulated height of the outer sphere is greater than or equal to the target horizontal drift height. If not, return to S3 to continue calculating the simulated state of the next horizontal drift balloon length; if yes, proceed to S5.

[0096] S5: Assume the outer sphere explodes here, and the inner sphere floats horizontally here.

[0097] When the simulated height of the outer sphere is greater than or equal to the target horizontal drift height, the outer sphere explodes and the inner sphere drifts horizontally. At this point, the internal buoyancy gas pressure of the inner sphere is equal to the external ambient air pressure.

[0098] S6: Calculate and output the simulated inflation volume of the floating balloon.

[0099] By simulating the internal floating gas temperature of the inner and outer spheres respectively, the inflation volume of the inner and outer spheres is calculated according to the ideal gas law, thus calculating and outputting the simulated inflation volume of the horizontally floating balloon.

[0100] like Figure 3 As shown, in this embodiment, the simulated inflation volume of the inner sphere output to the user interface is 155g, and the simulated inflation volume of the outer sphere is 2480g (that is, the tension after inflating the inner sphere is 155g, and the tension after inflating the outer sphere is 2480g). This inflation volume can be used to guide people in releasing the horizontal floating balloon, solving the problem of wasting time and equipment in the process of finding the appropriate inflation volume.

[0101] S7: Import the simulated inflation volume, measurement parameters, and release parameters into the mathematical coupling model.

[0102] The purpose of importing the measurement parameters, release parameters, and simulated inflation volume into the mathematical coupling model is to obtain some key parameters of the floating balloon during its ascent and descent after being inflated with the simulated inflation volume, such as the outer sphere explosion height, the outer sphere explosion time, and the inner sphere descent height, so as to predict the ascent process of the floating balloon. Users can also modify the output simulated inflation volume and then use the modified parameters to predict the ascent process of the floating balloon.

[0103] S8: Recalculate the simulation state of the horizontally drifting balloon at each step.

[0104] In steps S1-S3, all simulation states are calculated based on virtual inflation volume; and in step S5, the outer sphere exploding at the target horizontal drift height and the inner sphere drifting horizontally at the target horizontal drift height are assumptions; therefore, the horizontal drift balloon simulation state obtained in step S6 under the simulated inflation volume needs to be recalculated.

[0105] S9: Determine whether the simulated volume of the outer sphere is greater than or equal to the preset outer sphere limit volume threshold. If not, return to S8 to continue calculating the simulation state of the next length of the floating balloon; if yes, proceed to S10.

[0106] S10: Determine if the outer sphere explodes, and calculate the simulated state of the inner sphere at each subsequent step.

[0107] S11: Determine whether the simulation state of the inner sphere meets the preset threshold condition. If not, return to S10 to continue calculating the simulation state of the next length of the floating balloon; if yes, proceed to S12.

[0108] S12: Determine if the inner ball is floating, and output the display parameters.

[0109] like Figure 3 As shown, in this embodiment, the display parameters output to the user interface are: outer sphere explosion time 3885s, outer sphere explosion height 26305.8m, inner sphere horizontal drift height 27915.8m, as well as vertical trajectory, acceleration curve, temperature curve, volume curve, etc.

[0110] In this embodiment, the horizontally floating balloon was filled with 155g of buoyant gas into the inner balloon and 2480g of buoyant gas into the outer balloon. The balloon successfully achieved horizontal floating. The relative errors of several key indicators in the trajectory predicted by the simulation method between the actual launch result and the actual launch result are shown in Table 1. The relative error in Table 1 is the ratio of the absolute value of the difference between the actual launch result and the algorithm prediction value to the algorithm prediction value.

[0111] Table 1: Comparison of Key Indicators Between Actual Release Trajectory and Trajectory Predicted by Simulation Methods

[0112] index Actual release results Algorithm Predicted Values relative error Outer sphere explosion moment 3905s 3885s 0.5％ Outer sphere explosion height 26035 / m 26305.8 / m 1.04％ Inner ball leveling height 25882 / m 27915.8 / m 7.86％

[0113] This application embodiment also provides a system for simulating the inflation volume of a horizontally floating balloon, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of any of the methods described in the above-described method for simulating the inflation volume of a horizontally floating balloon.

[0114] The above-mentioned simulation system for the inflation volume of a floating balloon can realize various embodiments of the above-mentioned simulation method for the inflation volume of a floating balloon and achieve the same beneficial effects, which will not be elaborated here.

[0115] Optionally, embodiments of this application also provide a computer-readable storage medium storing a program or instructions that, when executed by a processor, implement the steps of the above-described method for simulating the inflation volume of a floating balloon.

[0116] This readable storage medium can implement various embodiments of the above-described method for simulating the inflation volume of a floating balloon, and can achieve the same beneficial effects, which will not be elaborated here.

[0117] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A method for simulating the inflation volume of a horizontally floating balloon, characterized in that, include: Acquire the measurement parameters, release parameters, and virtual inflation volume of the horizontally floating balloon, wherein the release parameters include: target horizontal floating height; A mathematical coupling model of a horizontally floating balloon is established. The measurement parameters, the release parameters, and the virtual inflation volume are imported into the mathematical coupling model. The simulation state of the horizontally floating balloon at each step after release is calculated. The simulation state includes the simulation height. The simulated height of the outer sphere in the floating balloon is determined. If the simulated height of the outer sphere is less than the target floating height, the simulated state of the next step length of the floating balloon is calculated. If the simulated height of the outer sphere is greater than or equal to the target floating height, the simulated inflation volume of the floating balloon is calculated. The mathematical coupling model is a coupling of the atmospheric model, the balloon motion equations, and the thermodynamic model. The atmospheric model is established based on atmospheric environmental data, including air pressure and temperature. The atmospheric model is established in any of the following ways: Method 1: If the atmospheric environment data includes atmospheric environment data from the ground to the upper atmosphere, an atmospheric environment model is established by interpolation or fitting. Method 2: If the atmospheric environment data is only ground atmospheric environment data, import the ground atmospheric environment data, latitude and longitude of the release location, and altitude of the release location through a standard atmospheric model, and establish an atmospheric environment model by performing one-dimensional to three-dimensional expansion processing; The balloon's motion equation is a model of the vertical motion of a horizontally floating balloon, neglecting the influence of the horizontal direction. Its differential equation in the vertical direction is: Where F is the net lift and f is the vertical drag. It's about the quality of the balloon. It is the mass of the load. It is the mass of the gas floating inside the sphere. It is added inertial mass; The thermodynamic model includes: direct solar heat Ground reflected heat Ground infrared radiation heat Internal infrared radiation heat External infrared radiation heat Internal convection heat and external convection heat ; The thermodynamic model includes the heat absorbed by the balloon, as follows: The heat Q1 absorbed by the outer sphere before the explosion can be expressed as: The heat Q2 absorbed by the inner sphere can be expressed as: in, It is infrared radiation heat from the inner sphere. It is infrared radiation heat from the outer sphere; The heat Q absorbed by the inner sphere after the outer sphere explodes is expressed as: 。 2. The method for simulating the inflation volume of a floating balloon according to claim 1, characterized in that, The measurement parameters include: the weight of the inner sphere of the horizontal floating balloon, the weight of the outer sphere of the horizontal floating balloon, the load weight, and the thermodynamic parameters of the balloon skin. The release parameters also include: release date, release time, latitude and longitude of release location, altitude of release location, and atmospheric environmental data; The simulation states also include simulated acceleration, simulated volume, simulated temperature of the sphere skin, and simulated temperature of the internal floating gas.

3. The method for simulating the inflation volume of a floating balloon according to claim 1, characterized in that, The method further includes: The measurement parameters, release parameters, and simulated inflation volume are imported into the mathematical coupling model to recalculate the simulated state of each step after the release of the horizontal floating balloon. The simulated state includes the simulated volume of the outer sphere. The simulated volume of the outer sphere is judged. If the simulated volume of the outer sphere is less than the preset outer sphere limit volume threshold, the simulation state of the next step length of the floating balloon is calculated. If the simulated volume of the outer sphere is greater than or equal to the preset outer sphere limit volume threshold, the outer sphere is judged to explode, and the simulation state of the inner sphere for each step length thereafter is calculated. Determine whether the simulation state of the inner sphere meets the preset threshold condition. If not, continue to calculate the simulation state of the inner sphere for the next length. If yes, determine that the inner sphere is floating and output the display parameters.

4. A system for simulating the inflation volume of a horizontally floating balloon includes a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that... When the processor executes the computer program, it implements the steps of any of the methods described in claims 1-3.

5. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the steps of the method as described in any one of claims 1-3.

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