Aerostat inflation measurement device, inflation system, and inflation method

Abstract

The present application relates to a kind of aerostat inflation measuring device, inflation system and inflation method, aerostat inflation measuring device, including gas flow body and temperature measurement module, gas flow body is hollow tubular structure, at gas flow body mouth, two pieces of honeycomb filter screen are set, on one hand avoid the damage caused to capsule due to gas flow rate too fast, on the other hand, mesh vent can effectively reduce flow rate, through installation hole and be located between mesh structure on side wall, temperature measurement module is installed in through installation hole, temperature measurement is more accurate.In the inflation of aerostat, the temperature in the transmission process of buoyancy gas can be directly measured by temperature measurement module, and the mass of buoyancy gas of aerostat and the net buoyancy value under current environment are accurately calculated by combining gas state equation, to solve the problem of inaccurate measurement and calculation in the inflation process before the launch of aerostat in prior art, realize the accurate calculation of the net buoyancy value of aerostat.

Description

Technical Field

[0001] This invention relates to the field of airship inflation and inflation volume calculation technology, and in particular to an airship inflation measurement device, inflation system and inflation method. Background Technology

[0002] Aerostats are generally aircraft that are filled with a lighter-than-air buoyant gas and rely on buoyancy to rise into the air. Traditional aerostats can be divided into three main categories: airships, high-altitude balloons, and tethered balloons. Hydrogen and helium are commonly used as buoyant gases, but because hydrogen is flammable and explosive and poses certain dangers, helium is now more commonly used as the buoyant gas in aerostats.

[0003] Accurate calculation of the amount of gas injected into the airship during deployment is crucial, directly impacting its successful ascent and determining its ascent speed and altitude. Insufficient gas will result in a slow ascent or failure to reach the intended altitude. Conversely, excessive gas will cause the airship to ascend too quickly, potentially leading to a rapid pressure increase before sufficient air can be expelled. This pressure difference between the inside and outside of the airship will exceed the safe pressure tolerance of its skin material, damaging the airship. The amount of gas injected generally refers to the mass of the buoyant gas, which is not entirely equivalent to the net buoyancy. Net buoyancy is the buoyancy generated by the volume of air displaced by the buoyant gas minus the weight of the buoyant gas. When the buoyant gas is at the same temperature as the atmosphere, the net buoyancy is proportional to the mass of the buoyant gas. However, when the buoyant gas is at a different temperature, the net buoyancy cannot be calculated simply by multiplying by this proportionality; it must be solved using both the gas law and Archimedes' principle. The mass of the buoyant gas determines the equilibrium state of the aerostat, while the net buoyancy determines its initial lift rate. Therefore, when calculating the inflation volume of the aerostat, both the mass of the buoyant gas and the net buoyancy must be calculated simultaneously.

[0004] In existing technologies, airship inflation is generally achieved through high-pressure gas cylinders, inflation hoses, and inflation spikes. There are generally three methods for calculating the inflation volume of an airship: 1) For small airships, a tension gauge can be used for direct weighing. This method is relatively accurate and convenient for calculating the inflation volume of small airships, but it cannot accurately measure the volume of large airships or airships in the field where ground winds may affect the measurement. Furthermore, the direct weighing method only yields the net buoyancy value under the current environment, not the mass of the lifted gas. 2) For most airships, electronic flow meters can be used to measure the fluid velocity and flow rate. During inflation, one end of the flow meter is connected to the high-pressure gas cylinder, and the other end is connected to the inflation hose. The flow meter will then display the velocity and flow rate, from which the total mass of the lifted gas can be obtained. Its advantages are simple operation, ease of use, and instant readings. The disadvantages are that the measurement results have a certain degree of error, mainly due to zero-point drift. External vibrations and interference, fluid temperature and density, and fluid velocity all affect the measurement results, especially when the flow rate is low, the measurement error will be large. Furthermore, the flow meter measurement directly yields the mass of the floating gas, but cannot accurately calculate the net buoyancy value under current environmental conditions. 3) Calculating the filling volume using the density interpolation relationship of the gas inside the high-pressure cylinder at different pressures and temperatures. Current methods measure the outlet pressure and surface temperature of the high-pressure cylinder, and use the density interpolation relationship of the gas at different pressures and temperatures to calculate the filling volume. However, the error in this calculation method stems from the fact that the surface temperature of the high-pressure cylinder is not the actual temperature of the output gas. Based on experience, gas undergoes adiabatic expansion and cools rapidly; therefore, the output gas temperature will be lower than the cylinder temperature.

[0005] Based on the problems existing in the inflation process of airships in the above-mentioned existing technologies, there is an urgent need for a more accurate inflation device and method to optimize the inflation metering process of airships. Summary of the Invention

[0006] This invention provides an airship inflation measurement device, inflation system, and inflation method to solve the problem of inaccurate measurement and calculation during the inflation process before airship deployment in the prior art, and to achieve accurate calculation of the net buoyancy value of the airship.

[0007] This invention provides an airship inflation measurement device, comprising a gas flow body and a temperature measurement module. The gas flow body is a hollow tubular structure that allows gas to pass through, and a through mounting hole is provided on the side wall of the gas flow body. The temperature measurement module is installed in the through mounting hole and is used to measure the temperature of the gas passing through the gas flow body.

[0008] According to the airship inflation measuring device provided by the present invention, a honeycomb filter is installed inside the gas flow body. The honeycomb filter is radially distributed along the internal channel of the gas flow body. An annular groove is provided on the channel wall of the internal channel of the gas flow body, and the edge of the honeycomb filter is engaged with the annular groove.

[0009] According to the airship inflation measuring device provided by the present invention, the honeycomb filter has at least two pieces, and a sound-absorbing sponge is provided between two adjacent honeycomb filter pieces.

[0010] According to the airship inflation measuring device provided by the present invention, the gas flow body includes a through section and a gradually changing section. The small diameter end of the gradually changing section is provided with an internal threaded connection joint as an air inlet. The large diameter end of the gradually changing section is integrally connected with the through section. The end of the through section away from the gradually changing section is provided with an external thread as an air outlet.

[0011] According to the airship inflation measurement device provided by the present invention, the temperature measurement module includes a temperature probe, a temperature data transmission rod, and a wireless data transmission module. The temperature probe is installed in the through mounting hole and is used to measure the temperature of the gas passing through the gas flow body. The first end of the temperature data transmission rod is connected to the temperature probe and is used to transmit the temperature data measured by the temperature probe. The wireless data transmission module is connected to the second end of the temperature data transmission rod and is used to receive the temperature data transmitted by the temperature data transmission rod and wirelessly transmit it to a remote system for calculation.

[0012] This invention also provides an airship inflation system, including the aforementioned airship inflation measuring device, and further including an airship, an inflation pipeline, an air source device, and a remote computer. The airship is provided with an inflation port, and the airship inflation measuring device is connected to the inflation port. The inflation pipeline is connected to the airship inflation measuring device for gas transmission. The air source device is provided with a temperature measuring sensor, and its outlet is connected to the inflation pipeline. A pressure gauge is also provided at the outlet of the air source device. The remote computer is used to receive data from the temperature measuring module, the temperature measuring sensor, and the pressure gauge, and to perform calculations.

[0013] According to the airship inflation system provided by the present invention, the gas source device consists of multiple high-pressure gas cylinders connected in series and connected to the inflation pipeline through a main switch. The pressure gauge is installed on the side of the main switch facing away from the inflation pipeline. The temperature measuring sensor is installed on the high-pressure gas cylinder to measure the temperature of the gas inside the high-pressure gas cylinder.

[0014] According to the airship inflation system provided by the present invention, the inflation port is a rigid inflation port or an inflation flange, and the outlet end of the gas flow body is connected to the inflation port by a threaded connection or a flange connection.

[0015] According to the airship inflation system provided by the present invention, the inflation port is a flexible inflation port, which covers the air outlet of the gas flow body.

[0016] The present invention also provides a method for inflating an airship, using the above-mentioned airship inflation system, comprising the following steps:

[0017] Step 1: Install and connect the airship inflation system;

[0018] Step 2: Check and confirm that the temperature measurement module, the temperature measurement sensor, and the pressure gauge are working properly, and check that the remote computer is receiving data normally;

[0019] Step 3: Read the measurement data from the temperature sensor and the pressure gauge using the remote computer to obtain the initial pressure and initial temperature values ​​of the gas source device. By referring to the density interpolation table of the floating gas under different pressures and temperatures, obtain the initial floating gas mass in the gas source device.

[0020] Step 4: Turn on the air source device switch to inflate the airship;

[0021] Step 5: During the inflation process, the remote computer reads the measurement data from the temperature sensor and the pressure gauge in real time, and calculates the real-time buoyancy mass of the gas in the gas source device on the remote computer; the difference between the initial buoyancy mass and the real-time buoyancy mass is used to obtain the buoyancy mass of the airship, and the real-time net buoyancy value a of the airship is calculated using this buoyancy mass;

[0022] Step 6: The temperature value of the gas passing through the gas flow body is measured in real time by the temperature measurement module. The real-time net buoyancy value a of the airship obtained in Step 5 at the same time is corrected by the temperature value measured by the temperature measurement module on the remote computer to obtain the real-time net buoyancy value b of the airship.

[0023] Step 7: Compare the net buoyancy value b of the airship obtained in Step 6 with the target inflation volume. When the real-time net buoyancy value b of the airship reaches the target inflation volume, inflation ends and the switch of the air source device is turned off.

[0024] Step 8: Remove the airship inflation measuring device connected to the airship, seal the inflation port, and the airship completes the inflation process.

[0025] The airship inflation measurement device, inflation system, and inflation method provided by this invention allow for the direct measurement of the temperature of the buoyant gas during inflation. By combining this measurement with the gas state equation, the mass of the buoyant gas and the net buoyancy under the current environment can be accurately calculated. Furthermore, the airship inflation measurement device can measure the temperature of the gas after adiabatic expansion through the inflation pipe during inflation, thereby calculating a more accurate net buoyancy value. This addresses the problem of inaccurate measurement and calculation during the inflation process before airship deployment in existing technologies, enabling accurate calculation of the mass of the buoyant gas and the net buoyancy under current environmental conditions. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the airship inflation measuring device provided by the present invention;

[0028] Figure 2 This is an isometric schematic diagram of the gas flow body provided by the present invention;

[0029] Figure 3 This is a schematic cross-sectional view of the gas flow body provided by the present invention;

[0030] Figure 4 This is a schematic diagram of the temperature measurement module provided by the present invention;

[0031] Figure 5 This is a schematic diagram of the installation location of the temperature measurement module provided by the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the airship inflation system provided by the present invention;

[0033] Figure 7 This is a schematic diagram of the structure of the airship provided by the present invention.

[0034] Figure label:

[0035] 1. Aircraft inflation measurement device; 2. Aircraft; 3. Inflation pipeline; 4. Air source device; 5. Remote computer;

[0036] 11. Gas flow main body; 12. Temperature measurement module; 13. Honeycomb filter; 14. Sound-absorbing sponge

[0037] 111. Through mounting hole; 112. Through diameter section; 113. Gradual diameter section;

[0038] 121. Temperature probe; 122. Temperature data transmission rod; 123. Wireless data transmission module;

[0039] 21. Inflation port;

[0040] 41. Temperature sensor; 42. Pressure gauge; 43. High-pressure gas cylinder; 44. Main switch. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0042] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0044] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] This invention provides an embodiment of an airship inflation measurement device, see [link to embodiment]. Figure 1 As shown, it includes a gas flow body 11 and a temperature measurement module 12. The gas flow body 11 is a hollow tubular structure that allows gas to pass through. A through mounting hole 111 is provided on the side wall of the gas flow body 11. The temperature measurement module 12 is installed in the through mounting hole 111 and is used to measure the temperature of the gas passing through the gas flow body 11.

[0047] The airship inflation measurement device provided in this embodiment is mainly used to measure the inflation volume during the airship inflation process and calculate the corresponding buoyancy value of the airship. This airship inflation measurement device is connected in series to the airship inflation pipeline. The temperature measurement module 12 measures the temperature of the gas flowing through the gas flow body 11. Combined with the gas state equation and the mass of the buoyant gas injected into the airship measured by the inflation device, a more accurate net buoyancy value of the airship is calculated to determine the specific inflation end time. Traditional airship inflation measurement methods measure the outlet pressure and surface temperature of the high-pressure gas cylinder, using the density interpolation relationship of the gas under different pressures and temperatures to calculate the inflation volume. However, this calculation method has errors, mainly because the surface temperature of the high-pressure gas cylinder is not the actual gas outlet temperature. Based on experience, gas undergoes adiabatic expansion and cools rapidly; therefore, the gas outlet temperature will be lower than the cylinder temperature. The device of this invention, by adding an airship inflation measuring device, can measure the temperature of the gas after adiabatic expansion, in addition to the traditional measurement of inflation volume. The data is further corrected according to the gas state equation to obtain a more accurate buoyancy value of the airship, and then the inflation end time is determined to complete the precise inflation of the airship. Compared with traditional airship inflation devices and methods, the airship inflation measuring device provided in this embodiment provides more accurate measurement results.

[0048] This embodiment describes the gas flow body 11 of the airship inflation measurement device. (See [link to documentation]). Figure 3As shown, a honeycomb filter 13 is installed inside the gas flow body 11. The honeycomb filter 13 is radially distributed along the internal channel of the gas flow body 11. Annular grooves are provided on the channel walls of the internal channel of the gas flow body 11, and the edges of the honeycomb filter 13 engage with these grooves. During the airship inflation process, the floating gas exiting the high-pressure gas cylinder has a strong impact force due to the high pressure, which can easily cause impact damage to the equipment through which the gas flows, and may even damage the devices at the airship connection interface. In this embodiment, the added airship inflation measuring device is equipped with a honeycomb filter 13. The honeycomb filter 13 can buffer the impacting airflow. Through the honeycomb structure of the honeycomb filter 13, the impact force of the airflow can be balanced and reduced, playing a role in flow reflection and protecting the safety of the equipment through which the gas flows. There are at least two honeycomb filters 13. Two honeycomb filters 13 are set at the opening of the gas flow body 11. On the one hand, this avoids damage to the capsule caused by excessive gas flow. On the other hand, the mesh ventilation holes can effectively reduce the flow rate. The through mounting holes 111 on the side wall are arranged between the mesh structures, making temperature measurement more accurate. A sound-absorbing sponge 14 is set between two adjacent honeycomb filters 13. Since high-speed gas will generate strong vibrations and generate huge noise during inflation, this embodiment uses the sound-absorbing sponge 14 to reduce the vibration noise generated by the airflow. The sound-absorbing sponge 14 can greatly reduce the noise caused by inflation.

[0049] Based on the above embodiments, in this embodiment, see... Figure 2 As shown, the gas flow body 11 includes a through section 112 and a tapered section 113. The smaller diameter end of the tapered section 113 is fitted with an internally threaded connector 114 as the air inlet. The larger diameter end of the tapered section 113 is integrally connected to the through section 112. The end of the through section 112 furthest from the tapered section 113 is fitted with an external thread as the air outlet. An inflation pipeline is connected via the internally threaded connector 114 as the air inlet. As the gas flows through the tapered section 113, the gradually increasing diameter of the gas flow body 11 creates a larger gas space, which to some extent does not affect gas expansion and gradually reduces the impact force of the gas.

[0050] Combination Figure 4 and Figure 5As shown in the figure, this embodiment describes the temperature measurement module 12 in detail. In this embodiment, the temperature measurement module 12 includes a temperature probe 121, a temperature data transmission rod 122, and a wireless data transmission module 123. The temperature probe 121 is installed in the through mounting hole 111 and is used to measure the temperature of the gas passing through the gas flow body 11. The probe is located in the sound-absorbing sponge 14 and sandwiched between two honeycomb filter screens 13. The honeycomb filter screens 13 and the sound-absorbing sponge 14 protect the temperature probe 121 and prevent high-speed gas from impacting and damaging the temperature probe 121. The first end of the temperature data transmission rod 122 is connected to the temperature probe 121 and is used to transmit the temperature data measured by the temperature probe 121. The wireless data transmission module 123 is connected to the second end of the temperature data transmission rod 122 and is used to receive the temperature data transmitted by the temperature data transmission rod 122 and wirelessly transmit it to the remote system (remote computer 5) for calculation. The temperature data of the gas measured by the temperature probe 121 is transmitted to the remote computer 5 through the temperature data transmission rod 122 and the data wireless transmission module 123 for calculation, calibration and correction, so as to obtain a more accurate buoyancy value of the airship.

[0051] The present invention also provides an airship inflation system, see below. Figure 6 As shown, the device includes the aforementioned airship inflation measurement device 1, as well as the airship 2, inflation pipeline 3, air source device 4, and remote computer 5, as follows: Figure 7 As shown, an air buoy 2 is provided with an air inlet 21, and an air buoy inflation measuring device 1 is connected to the air inlet 21; an inflation pipeline 3 is connected to the air buoy inflation measuring device 1 for gas transmission; a temperature measuring sensor 41 is provided on the gas source device 4, the outlet of the gas source device 4 is connected to the inflation pipeline 3, and a pressure gauge 42 is provided at the outlet of the gas source device 4; a remote computer 5 is used to receive data from the temperature measuring module 12, the temperature measuring sensor 41 and the pressure gauge 42 and perform calculations.

[0052] In this embodiment, the air inlet of the airship inflation measuring device 1 has an internal thread structure, which can be directly connected to the inflation pipeline 3. The length of the inflation pipeline 3 is fixed, generally a 10-meter-long high-pressure resistant hose with an embedded steel wire mesh sleeve. The number of sections of the inflation pipeline 3 can be connected according to the actual needs of the inflation site. Each section of the inflation pipeline 3 is completely identical, with one end having an external thread and the other end having an internal thread. The inflation pipelines 3 are connected end-to-end through the threaded ends, and the conical surfaces at both ends of the inflation pipeline 3 ensure a seal. The last section of the inflation pipeline 3 is connected to the gas source device 4 to receive the gas from the gas source device 4. The temperature measuring sensor 41 and pressure gauge 42 on the gas source device 4 are used to measure and calculate the mass of the buoyant gas output by the gas source device 4 to obtain the corresponding buoyancy value. Then, the temperature measured by the airship inflation measuring device 1 is combined with the gas state equation and corrected on the remote computer 5 to obtain a more accurate buoyancy value of the airship. This is then used to determine the inflation end time and complete the precise inflation of the airship 2.

[0053] Based on the airship inflation system provided in the above embodiment, this embodiment further describes the gas source device 4. The gas source device 4 consists of multiple high-pressure gas cylinders 43 connected in series and connected to the inflation pipeline 3 via a main switch 44. A pressure gauge 42 is installed on the side of the main switch 44 facing away from the inflation pipeline 3. A temperature measuring sensor 41 is installed on the high-pressure gas cylinder 43 to measure the internal gas temperature. The initial temperature and pressure values ​​of the high-pressure gas cylinder 43 are measured by the temperature measuring sensor 41 and the pressure gauge 42, and the gas mass in the high-pressure gas cylinder 43 is calculated. During the inflation process, the temperature and pressure values ​​of the high-pressure gas cylinder 43 are measured in real time to obtain the real-time remaining gas mass of the high-pressure gas cylinder 43. The difference between the initial gas mass and the remaining gas mass is the mass of buoyant gas injected into the airship 2.

[0054] Aerostats can be divided into three main categories: airships, high-altitude balloons, and tethered balloons. The aerostat inflation system provided by this invention allows the inflation port 21 to be connected to the gas flow body 11 via either a rigid or flexible connection. When the aerostat 2 is an airship or a tethered balloon, the inflation port 21 is a rigid inflation port or an inflation flange. The outlet end of the gas flow body 11 is connected to the inflation port 21 via a threaded connection or a flange connection. This can be achieved by pre-installing a rigid inflation port or an inflation flange on the aerostat 2, and then connecting the aerostat inflation measuring device 1 to the inflation port 21 of the aerostat 2 via a threaded connection or a snap-fit ​​connection. When the aerostat 2 is a high-altitude balloon, the inflation port 21 is a flexible inflation port. The flexible inflation port covers the outlet end of the gas flow body 11. During inflation, the flexible inflation tube of the inflation port 21 completely covers the outlet of the aerostat inflation measuring device 1, and the inflation operator seals it by hand.

[0055] The present invention also provides a method for inflating an airship, using the above-mentioned airship inflation system, comprising the following steps:

[0056] Step 1: Install and connect the airship inflation system.

[0057] Step 2: Check and confirm that the temperature measurement module 12, temperature measurement sensor 41 and pressure gauge 42 are working properly, and check that the remote computer 5 is receiving data normally.

[0058] Step 3: Read the measurement data of temperature sensor 41 and pressure gauge 42 through remote computer 5 to obtain the initial pressure value and initial temperature value of gas source device 4. By referring to the density interpolation relationship table of floating gas under different pressures and temperatures, the initial floating gas mass in gas source device 4 is obtained.

[0059] Step 4: Turn on the air source device 4 switch to inflate the airship 2.

[0060] Step 5: During inflation, the remote computer 5 reads the measurement data from the temperature sensor 41 and pressure gauge 42 in real time, and calculates the real-time mass of the buoyant gas in the gas source device 4. The difference between the initial mass and the real-time mass of the buoyant gas is used to obtain the mass of the buoyant gas injected into the airship 2. The real-time net buoyancy value 'a' of the airship is calculated using this mass. The net buoyancy value 'a' of the airship is obtained through the following method:

[0061] Among them, F 净 (a) is the real-time net buoyancy value of the airship, R. 空 R is the gas constant of air, R′ is the gas constant of the buoyant gas, and m is the mass of the buoyant gas that is filled into the airship in real time.

[0062] Step Six: The temperature of the gas passing through the gas flow body 11 is measured in real time by the temperature measurement module 12. The real-time net buoyancy value 'a' of the airship obtained in Step Five at the same moment is corrected using the temperature value measured by the temperature measurement module 12 on the remote computer 5, resulting in the real-time net buoyancy value 'b' of the airship. The net buoyancy value 'b' of the airship is calculated as follows:

[0063] Where F 净 (a) is the real-time net buoyancy value a of the airship; F 净 (b) is the real-time net buoyancy value of the airship; T′ is the real-time temperature value of the gas passing through the gas flow body as measured by the temperature measurement module; T 空 is the real-time air temperature, which can be obtained by displaying it on a remote computer 5; m is the real-time mass of buoyant gas being filled into the airship.

[0064] Step 7: Compare the net buoyancy value b of the airship obtained in Step 6 with the target inflation volume. When the real-time net buoyancy value b of the airship reaches the target inflation volume, inflation ends and the switch of the air source device 4 is turned off.

[0065] Step 8: Remove the airship inflation measuring device 1 connected to the airship 2, seal the inflation port 21, and the airship 2 completes the inflation process and is ready for deployment.

[0066] In summary, the core of the airship inflation measurement device, inflation system, and inflation method provided by this invention lies in the fact that the inflation measurement device can more accurately measure the gas temperature at the outlet, and can correct the buoyancy value of the buoyant gas being injected into the airship in real time, thereby improving the accuracy of the airship buoyancy calculation. Compared with existing airship inflation processes, this invention has the following advantages:

[0067] 1. Existing airship inflation structures are mostly "inflatable spikes," which are purely mechanical structures without temperature measurement modules and wireless data transmission modules. The airship inflation measurement device of the present invention improves the structure by adding a temperature measurement module, which can directly measure the temperature of the buoyant gas and transmit the real-time gas temperature to a remote computer for calculation through a wireless data transmission module.

[0068] 2. Traditional calculations of airship inflation volume rely on collecting pressure and temperature data from high-pressure gas cylinders and using density interpolation relationships of the buoyant gas under different pressures and temperatures to calculate the inflation volume. The resulting inflation volume is actually the mass of the buoyant gas, and the net buoyancy value calculated based on the molecular weight relationship between the buoyant gas and air is inaccurate. Simply put, due to the principle of thermal expansion and contraction, the same mass of buoyant gas will produce different buoyancy values ​​at different temperatures. The airship inflation measurement device of this invention can directly measure the actual temperature of the buoyant gas during transmission, and calculate the real-time net buoyancy value inside the airship based on the gas state equation.

[0069] 3. The airship inflation system and inflation method of the present invention can accurately measure the mass of buoyancy gas injected into the airship, and can also accurately measure the net buoyancy value inside the airship under the current environmental conditions. The mass of buoyancy gas can be used to assess the state of the airship after level flight, while the net buoyancy value can be used to assess the ascent speed of the airship after launch.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for measuring the inflation of an airship, characterized in that, include: The gas flow body (11) is a hollow tubular structure that allows gas to pass through. A through mounting hole (111) is provided on the side wall of the gas flow body (11). The gas flow body (11) includes a through section (112) and a tapered section (113). The small diameter end of the tapered section (113) is provided with an internal threaded connector (114) as an air inlet. The large diameter end of the tapered section (113) is integrally connected with the through section (112). The end of the through section (112) away from the tapered section (113) is provided with an external thread as an air outlet. Temperature measurement module (12), which is installed in the through mounting hole (111), is used to measure the temperature of the gas passing through the gas flow body (11); The gas flow body (11) is equipped with at least two honeycomb filter screens (13). The honeycomb filter screens (13) are radially distributed along the internal channel of the gas flow body (11). The channel wall of the internal channel of the gas flow body (11) is provided with an annular groove. The edge of the honeycomb filter screen (13) is engaged with the annular groove. A sound-absorbing sponge (14) is provided between two adjacent honeycomb filter screens (13).

2. The airship inflation measuring device according to claim 1, characterized in that, The temperature measurement module (12) includes: Temperature probe (121), which is installed in the through mounting hole (111), is used to measure the temperature of the gas passing through the gas flow body (11); A temperature data transmission rod (122) is provided, the first end of which is connected to the temperature probe (121) for transmitting temperature data measured by the temperature probe (121). A wireless data transmission module (123) is connected to the second end of the temperature data transmission rod (122) and is used to receive temperature data transmitted by the temperature data transmission rod (122) and wirelessly transmit it to a remote system for calculation.

3. An airship inflation system, characterized in that, Including the airship inflation measuring device (1) as described in claim 1 or 2, further comprising: An air buoy (2) is provided with an air inlet (21), and an air buoy inflation measuring device (1) is connected to the air inlet (21). An inflation line (3) is connected to the airship inflation measuring device (1) for gas transmission; A gas source device (4) is provided with a temperature measuring sensor (41), the outlet of the gas source device (4) is connected to the gas filling pipeline (3), and a pressure gauge (42) is provided at the outlet of the gas source device (4). The remote computer (5) is used to receive data from the temperature measurement module (12), the temperature measurement sensor (41), and the pressure gauge (42) and perform calculations.

4. The airship inflation system according to claim 3, characterized in that, The gas source device (4) consists of multiple high-pressure gas cylinders (43) connected in series and connected to the gas filling pipeline (3) through a main switch (44). The pressure gauge (42) is installed on the side of the main switch (44) facing away from the gas filling pipeline (3). The temperature measuring sensor (41) is installed on the high-pressure gas cylinder (43) to measure the gas temperature inside the high-pressure gas cylinder (43).

5. The airship inflation system according to claim 3 or 4, characterized in that, The inflation port (21) is a rigid inflation port or an inflation flange, and the outlet end of the gas flow body (11) is connected to the inflation port (21) by a threaded connection or a flange connection.

6. The airship inflation system according to claim 3 or 4, characterized in that, The inflation port (21) is a flexible inflation port, which covers the outlet end of the gas flow body (11).

7. A method for inflating an airship, characterized in that, The airship inflation system as described in any one of claims 3 to 6 includes the following steps: Step 1: Install and connect the airship inflation system; Step 2: Check and confirm that the temperature measurement module (12), the temperature measurement sensor (41), and the pressure gauge (42) are working properly, and check that the remote computer (5) is receiving data normally; Step 3: Read the measurement data of the temperature measuring sensor (41) and the pressure gauge (42) through the remote computer (5) to obtain the initial pressure value and initial temperature value of the gas source device (4). By referring to the density interpolation relationship table of the floating gas under different pressures and temperatures, the initial floating gas mass of the gas in the gas source device (4) is obtained. Step 4: Turn on the gas source device (4) switch to inflate the airship (2); Step 5: During the inflation process, the remote computer (5) reads the measurement data of the temperature measuring sensor (41) and the pressure gauge (42) in real time, and calculates the real-time floating gas mass of the gas in the gas source device (4) on the remote computer (5); the difference between the initial floating gas mass and the real-time floating gas mass is used to obtain the floating gas mass filled into the airship (2), and the real-time net buoyancy value a of the airship is calculated using the floating gas mass; Step 6: The temperature value of the gas passing through the gas flow body (11) is measured in real time by the temperature measurement module (12). The temperature value measured by the temperature measurement module (12) is used on the remote computer (5) to correct the real-time airship net buoyancy value a obtained in step 5 at the same time, so as to obtain the real-time airship net buoyancy value b. Step 7: Compare the net buoyancy value b of the airship obtained in Step 6 with the target inflation volume. When the real-time net buoyancy value b of the airship reaches the target inflation volume, inflation ends and the switch of the air source device (4) is turned off. Step 8: Remove the air-filling measuring device (1) connected to the air-filling device (2), seal the air-filling port (21), and the air-filling device (2) completes the air-filling process.

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