A safe feeding method and electronic equipment based on three-dimensional model

Abstract

This application, applicable to the field of equipment control technology, provides a safe charging method and electronic device based on a three-dimensional model. The method comprises: obtaining current internal cavity state parameters if a preset charging trigger condition is met; importing the powder density and propulsion parameters into a preset three-dimensional simulation model to determine a corresponding powder handling strategy for the pressure reducing piston; and, after executing at least one powder handling operation in the powder handling strategy, adding liquid carbon dioxide to the cavity based on the calibrated charging value. This method improves the operational safety of dry ice production equipment, prevents excessive dry ice particle density from blocking the pressure reducing piston's propulsion and causing component damage, and extends the service life of the dry ice production equipment.

Description

Technical Field

[0001] The present application belongs to the field of equipment control technology, and in particular relates to a safe feeding method and electronic equipment based on a three-dimensional model. Background Art

[0002] Dry ice, as a commonly used coolant, is widely used in various fields. The existing dry ice manufacturing technology generally converts liquid carbon dioxide into solid carbon dioxide by throttling and reducing pressure, wherein the throttling and reducing pressure method can be to control the air pressure of the closed inner cavity by controlling the pressure reducing piston to realize dry ice manufacturing. However, in the process of controlling the air pressure of the inner cavity by the pressure reducing piston and adding liquid carbon dioxide to the inner cavity, in addition to the formation of solid dry ice in the inner cavity, there will be a large amount of dry ice particles in the air, and the dry ice particles remaining in the hollow part are difficult to relieve pressure, which may cause the inner cavity pressure to be too high, resulting in the breakage of dry ice, and even causing damage to the mold when the pressurizing piston is pushed forward. It can be seen that in the existing process of manufacturing dry ice, the safety of adding materials to the inner cavity is low, and the mold is easily damaged. Summary of the Invention

[0003] The embodiments of the present application provide a safe feeding method and electronic equipment based on a three-dimensional model, which can solve the problems of low safety when feeding into the inner cavity and easy damage to the mold during the existing dry ice manufacturing process.

[0004] In a first aspect, an embodiment of the present application provides a safe feeding method based on a three-dimensional model, characterized by comprising:

[0005] If the preset charging trigger condition is met, the current state parameters of the inner cavity are obtained; the state parameters include the powder density of the dry ice particles and the real-time propulsion parameters of the decompression piston in the cavity;

[0006] Importing the powder density and the propulsion parameters into a preset three-dimensional simulation model to determine a powder processing strategy corresponding to the decompression piston; the powder processing strategy includes a calibrated feeding value obtained by adjusting the target feeding value corresponding to the feeding trigger condition;

[0007] After at least one powder processing operation in the powder processing strategy is executed, liquid carbon dioxide is added to the chamber based on the calibrated addition value.

[0008] In a possible implementation of the first aspect, importing the powder density and the propulsion parameters into a preset three-dimensional simulation model to determine a powder processing strategy corresponding to the decompression piston includes:

[0009] A preset dry ice particle size distribution function is imported according to the powder particle density to calculate the dry ice particle size distribution information in the cavity; the dry ice particle size distribution function is specifically:

[0010]

[0011] Wherein, Gra[i] is the distribution probability corresponding to the i-th particle size in the preset particle size distribution sequence; the particle size distribution sequence is obtained by sorting each particle size based on volume; BaseGra is the average particle size of the particle size distribution sequence; σ is the preset probability calibration coefficient; e is a natural constant;

[0012] Based on the dry ice distribution particle size information, constructing a dry ice distribution model in the cavity through the three-dimensional simulation model;

[0013] adjusting the propulsion position of the simulated piston in the three-dimensional inner cavity model corresponding to the inner cavity by using the real-time propulsion parameter;

[0014] determining, based on the dry ice distribution model and the three-dimensional inner cavity model after updating the advancement position of the simulated piston, at least one of the powder and particle processing operations and an expected reduction volume after the powder and particle processing operation; the expected reduction volume being an expected volume of liquid carbon dioxide obtained after the powder and particle processing operation;

[0015] Determining the calibration addition value based on the target addition value and the expected reduction volume;

[0016] The particle handling strategy is generated based on the calibration dosing value and at least one of the particle handling operations.

[0017] In a possible implementation of the first aspect, determining at least one of the powder and particle processing operations and an expected reduction volume after the powder and particle processing operation based on the dry ice distribution model and the three-dimensional inner cavity model after updating the advancement position of the simulated piston includes:

[0018] determining an expected advancement distance of the simulated piston during the feeding process based on the three-dimensional inner cavity model and the updated advancement position;

[0019] The amount of covering powder particles within the expected advancing distance is determined based on the dry ice distribution model; the amount of covering powder particles is specifically:

[0020]

[0021] Wherein, TotalC is the amount of covering powder particles; α iis the adsorption probability corresponding to the i-th particle size; N is the total number of particle sizes contained in the particle size distribution sequence; S is the area of ​​the inner cavity; Dis is the expected propulsion distance; Destiy is the powder density;

[0022] The expected reduction volume is determined according to the amount of covering powder particles.

[0023] In a possible implementation of the first aspect, an adsorption component is configured on an outer surface of the decompression piston; the adsorption component includes a barrier layer, a filter layer, and a storage layer; the filter layer includes a plurality of filter screens; the pore size of each filter screen corresponds to a particle size in the particle size distribution sequence;

[0024] After executing at least one powder processing operation in the powder processing strategy, adding liquid carbon dioxide to the chamber based on the calibrated addition value comprises:

[0025] During the process of advancing the decompression piston, the barrier layer in the adsorption component is opened to adsorb the dry ice particles in the inner cavity to the storage layer through the filter layer;

[0026] When the decompression piston is pushed to the charging trigger position, the barrier layer is closed and the storage layer is decompressed to reduce the dry ice particles in the storage layer to liquid carbon dioxide;

[0027] The liquid carbon dioxide in the storage layer and the liquid carbon dioxide in an amount equal to the calibration addition value delivered through the feeding port are added to the inner cavity.

[0028] In a possible implementation of the first aspect, if a preset feeding trigger condition is met, obtaining the current state parameter of the inner cavity includes:

[0029] determining the actual volume of the solid dry ice formed in the inner cavity by a sensor in the inner cavity;

[0030] determining a desired dry ice volume according to the current real-time advancement parameter of the decompression piston;

[0031] If the difference between the expected dry ice volume and the actual volume is greater than a preset volume threshold, the current state parameter of the inner cavity is obtained.

[0032] In a possible implementation of the first aspect, after executing at least one powder processing operation in the powder processing strategy, adding liquid carbon dioxide to the chamber based on the calibrated addition value includes:

[0033] executing each of the powder processing operations in sequence according to the operation order corresponding to each of the powder processing operations in the powder processing strategy;

[0034] After completing any particle processing operation, determining the particle density of the dry ice particles in the inner cavity;

[0035] If the powder density is less than or equal to a preset density threshold, the subsequent powder processing operations after the any powder processing operation are stopped, and liquid carbon dioxide is added to the chamber based on the calibrated addition value.

[0036] In a possible implementation of the first aspect, the outer surface of the pressure reducing piston further includes a heating component;

[0037] After executing at least one powder processing operation in the powder processing strategy, adding liquid carbon dioxide to the chamber based on the calibrated addition value further includes:

[0038] Based on the temperature rise coefficient in the powder processing strategy, controlling the heating component to operate at a power corresponding to the temperature rise coefficient to reduce dry ice powder within a preset range into liquid carbon dioxide;

[0039] After a preset heating time, the heating component is turned off, and the reduced liquid carbon dioxide and the liquid carbon dioxide added in an amount equal to the calibration addition value are subjected to a decompression process to obtain solid dry ice.

[0040] In a second aspect, an embodiment of the present application provides a safe feeding device based on a three-dimensional model, the device comprising:

[0041] A charging trigger unit, configured to obtain current state parameters of the inner cavity if a preset charging trigger condition is met; the state parameters include the density of dry ice powder particles and the real-time propulsion parameters of the decompression piston in the cavity;

[0042] a powder processing strategy determining unit, configured to import the powder density and the propulsion parameters into a preset three-dimensional simulation model to determine a powder processing strategy corresponding to the decompression piston; the powder processing strategy comprising a calibrated feeding value obtained by adjusting the target feeding value corresponding to the feeding trigger condition;

[0043] A feeding execution unit is configured to add liquid carbon dioxide to the chamber based on the calibrated feeding value after completing at least one powder processing operation in the powder processing strategy.

[0044] In a third aspect, an embodiment of the present application provides an electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method described in any one of the first aspects above is implemented.

[0045] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method described in any one of the first aspects above is implemented.

[0046] In a fifth aspect, an embodiment of the present application provides a computer program product, which, when running on a drone, enables the drone to execute any of the methods described in the first aspect above.

[0047] Compared with the prior art, the embodiments of the present application have the following beneficial effects: when a preset charging trigger condition is met, the state parameters in the inner cavity of the dry ice manufacturing device can be obtained. The above state parameters may include the powder density corresponding to the dry ice powder particles in the inner cavity and the real-time propulsion parameters of the pressure reducing piston in the inner cavity. The electronic device can import the preset three-dimensional simulation model through the above-obtained state parameters to simulate the charging process into the inner cavity, determine whether the current dry ice powder particles will cause component damage, and determine the powder processing strategy for avoiding component damage through the three-dimensional simulation model to eliminate the dry ice powder particles in the inner cavity; the electronic device can execute the powder processing operation in the powder processing strategy on the inner cavity, and after completing the powder processing operation, add liquid carbon dioxide to the inner cavity of the dry ice manufacturing device, thereby achieving the purpose of safely charging the dry ice manufacturing equipment. Compared with the existing dry ice manufacturing technology, before adding material to the inner cavity of the dry ice manufacturing equipment, the process of adding material to the inner cavity can be simulated through a three-dimensional simulation model, and a matching powder particle processing strategy can be generated to process the dry ice powder particles in the inner cavity before adding material, thereby improving the operating safety of the dry ice manufacturing equipment, avoiding the blockage of the pressure reducing piston due to the excessive density of the dry ice powder particles, resulting in damage to components, and extending the service life of the dry ice manufacturing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0049] Figure 1 This is a schematic structural diagram of a control system for dry ice production provided in one embodiment of the present application;

[0050] Figure 2 This is a schematic diagram of an implementation of a safe feeding method based on a three-dimensional model provided in an embodiment of the present application;

[0051] Figure 3This is a flowchart for the specific implementation of S202 in a safe feeding method based on a three-dimensional model provided in the second embodiment of the present application;

[0052] Figure 4 Schematic diagram of the propulsion volume of the pressure reducing piston provided in one embodiment of the present application;

[0053] Figure 5 This is a flowchart of a specific implementation of a safe feeding method based on a three-dimensional model in S203 provided in the third embodiment of the present application;

[0054] Figure 6 This is a schematic structural diagram of a pressure reducing piston provided in one embodiment of the present application;

[0055] Figure 7 This is a flowchart of a specific implementation of a safe feeding method based on a three-dimensional model in S201 provided in the fourth embodiment of the present application;

[0056] Figure 8 This is a flowchart of a specific implementation of a safe feeding method based on a three-dimensional model in S203 provided in the fifth embodiment of the present application;

[0057] Figure 9 This is a flowchart of a specific implementation of a safe feeding method based on a three-dimensional model in S203 provided in the sixth embodiment of the present application;

[0058] Figure 10 This is a schematic structural diagram of a three-dimensional model-based safe feeding device provided in an embodiment of the present application;

[0059] Figure 11 It is a structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0060] In the following description, specific details such as specific system structures and techniques are provided for purposes of illustration rather than limitation to facilitate a thorough understanding of the embodiments of the present application. However, it will be apparent to those skilled in the art that the present application may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obscuring the description of the present application with unnecessary detail.

[0061] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, integers, steps, operations, elements and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof.

[0062] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0063] The safe charging method based on a three-dimensional model provided in the embodiment of the present application can be applied to a control terminal equipped with a control system for dry ice production. For example, Figure 1 The structure diagram of the control system for dry ice production provided by an embodiment of the present application is shown. Figure 1 The dry ice manufacturing control system includes a control terminal 11 and a dry ice manufacturing device 12. The control terminal 11 can establish a communication connection with relevant components of the dry ice manufacturing device. For example, the control terminal 11 can be connected to the air composition detection module 121 in the dry ice manufacturing device to obtain the density of dry ice particles in the inner cavity. The control terminal 11 can also be connected to the decompression piston 122 and the feeding module 123 in the dry ice manufacturing device to control the above two modules to perform related operations, such as controlling the feeding module 123 to perform a feeding operation, controlling the decompression piston 122 to perform movement in the inner cavity, or controlling its related components to perform a powder processing operation.

[0064] See also Figure 2 , Figure 2 The following diagram illustrates an implementation of a three-dimensional model-based secure charging method provided in an embodiment of the present application. This three-dimensional model-based secure charging method is applied to the aforementioned control terminal 11. That is, the execution subject of the embodiment of the present application can be the aforementioned control terminal 11, wherein the control terminal 11 is specifically an electronic device, such as a computer, laptop, server, or smartphone. For ease of description, the subsequent execution subject is described using the control terminal as an example. Specifically, the method includes the following steps:

[0065] In S201, if the preset charging trigger condition is met, the current state parameters of the inner cavity are obtained; the state parameters include the powder density of the dry ice particles and the real-time propulsion parameters of the decompression piston in the cavity.

[0066] In this embodiment, the electronic device can obtain and determine the current remaining value of the dry ice making device. Since the dry ice making device converts liquid carbon dioxide into solid dry ice by throttling and reducing pressure, that is, after adding liquid carbon dioxide to the inner cavity of the dry ice making device, the liquid gradually converts into a solid. The electronic device can determine the remaining liquid in the inner cavity and determine whether the current remaining liquid carbon dioxide meets the manufacturing requirements, for example, determining whether the remaining liquid in the inner cavity is greater than a preset remaining value threshold. If the current remaining liquid is less than or equal to the aforementioned remaining value threshold, it indicates that the inner cavity needs to be filled, and the operation of S201 is executed. Conversely, if the current remaining liquid is greater than the aforementioned remaining value threshold, it is determined that the inner cavity does not need to be filled, and the preset dry ice making operation can continue, for example, continuing to reduce the air pressure in the inner cavity by using the pressure reducing piston to convert the liquid carbon dioxide into solid dry ice.

[0067] In some implementations, the electronic device can obtain a heat distribution map of the inner cavity via an infrared sensing module, determine a first region of solid dry ice and a second region of liquid carbon dioxide based on the heat distribution map, and determine the aforementioned liquid remaining amount based on the volume of the second region. Of course, if other liquid capacity detection modules are provided in the inner cavity, the corresponding sensing values ​​can also be fed back by these detection modules to determine the current liquid remaining amount of liquid carbon dioxide in the inner cavity.

[0068] In some possible implementations, the electronic device may add liquid carbon dioxide to the inner cavity in a preset adding cycle. In this case, if the electronic device detects that the current time reaches the preset adding moment, it executes the operation of S201.

[0069] In this embodiment, upon determining that a preset refueling trigger condition has been met, the electronic device can obtain state parameters within the current inner cavity and, based on these state parameters, determine a particle processing strategy for eliminating dry ice particles from the air within the current inner cavity. These state parameters include at least two parameters: the density of dry ice particles within the inner cavity and a real-time advancement parameter corresponding to a pressure-reducing piston used to control the air pressure within the inner cavity. Alternatively, the real-time advancement parameter can be the advancement distance of the pressure-reducing piston or another characteristic value that characterizes the advancement of the pressure-reducing piston.

[0070] In this embodiment, an air quality detection module can be provided in the inner cavity of the dry ice manufacturing equipment. Optionally, the air quality detection module can be provided on the pressure reducing piston in the inner cavity and move as the pressure reducing piston advances in the inner cavity, thereby being able to obtain the powder density of the dry ice powder particles within the area of ​​the pressure reducing piston.

[0071] In some possible implementations, after obtaining the real-time propulsion parameters corresponding to the decompression piston, the electronic device can determine the real-time air pressure value corresponding to the current real-time propulsion parameters based on the mapping relationship between the propulsion distance and the air pressure value, thereby being able to determine the conversion rate of liquid carbon dioxide into solid dry ice. In addition, since the difference in the inner cavity air pressure will also affect the floating distribution of dry ice particles in the air, the degree of influence of the dry ice particles on the decompression piston can also be determined based on the air pressure value, thereby improving the accuracy of subsequent model simulations.

[0072] In S202, the powder density and the propulsion parameters are imported into a preset three-dimensional simulation model to determine a powder processing strategy corresponding to the pressure reducing piston; the powder processing strategy includes a calibrated feeding value obtained by adjusting the target feeding value corresponding to the feeding trigger condition.

[0073] In this embodiment, the electronic device can construct a corresponding 3D model based on the dry ice making device's structure. This 3D model can be used to simulate changes in the dry ice making device's internal cavity as the decompression piston advances within the cavity. In some possible implementations, the electronic device can input the dry ice making device's model number, retrieve the 3D model corresponding to that model number from a model library, and construct a 3D simulation model based on that 3D model to simulate changes in the internal cavity.

[0074] In this embodiment, after obtaining the state parameters of the inner cavity of the corresponding dry ice manufacturing equipment, the electronic device can import them into the three-dimensional simulation model corresponding to the dry ice manufacturing equipment to adjust the relevant three-dimensional objects in the three-dimensional simulation model, so as to construct a three-dimensional simulation model after updating the three-dimensional objects to simulate the internal state of the decompression piston when it is pushed in the inner cavity, and then determine the corresponding powder particle processing strategy according to the powder particle distribution in the simulation scene. While being able to eliminate the dry ice particles in the inner cavity, it can also avoid the impact on the solid dry ice that has been generated and reduce energy consumption, thereby improving the production efficiency of dry ice manufacturing.

[0075] In this embodiment, the three-dimensional simulation model can add a corresponding particle distribution model to the simulated inner cavity model of the three-dimensional simulation model based on the particle density of the dry ice particles, and adjust the position of the decompression piston model in the three-dimensional simulation model based on the real-time propulsion parameters, thereby constructing a three-dimensional simulation model corresponding to the actual inner cavity environment. The model can then simulate the propulsion process of the decompression piston under the corresponding environment, determine the service wear coefficient of the decompression piston without eliminating the dry ice particles, and determine if the service wear coefficient is greater than or equal to a preset wear threshold, indicating that the dry ice particles need to be eliminated. A particle treatment operation is determined, and the particle treatment operation and the corresponding calibration dosing value are added to the particle treatment strategy. Conversely, if the service wear coefficient is less than the wear threshold, indicating that the current dry ice particles have little impact on the inner cavity, the corresponding particle treatment operation is not necessary, and a particle treatment strategy is generated based on the calibration dosing value.

[0076] In S203 , after at least one powder processing operation in the powder processing strategy is executed, liquid carbon dioxide is added to the chamber based on the calibrated addition value.

[0077] In this embodiment, after the electronic device generates a powder and particle processing strategy, it can identify whether the strategy includes powder and particle processing operations that need to be executed; if the powder and particle processing strategy includes at least one powder and particle processing operation, then after executing one or all of the powder and particle processing operations, the inner cavity is fed. Specifically, the number of powder and particle processing operations that need to be executed can be determined based on actual conditions.

[0078] In some possible implementations, when the powder processing strategy includes two or more powder processing operations, the electronic device may obtain the powder density of the inner cavity after completing a powder processing operation. If the powder density after processing is less than or equal to a preset powder threshold, there is no need to perform subsequent powder processing operations. Conversely, if the powder density after performing a powder processing operation is greater than the above-mentioned powder threshold, the powder processing operation of the next execution order is performed, and so on, until the powder processing operation is completed or the powder density after any powder processing operation is less than or equal to the powder threshold.

[0079] In some implementations, the above-mentioned powder processing operations include but are not limited to: powder adsorption, powder dissolution by heating, powder filtration and other operations. The specific powder processing operation selected can be determined according to actual conditions and is not limited here.

[0080] In this embodiment, after completing at least one powder processing operation, the electronic device can add liquid carbon dioxide to the inner cavity according to the set calibration addition value, so as to continue to achieve dry ice production, thereby ensuring the safety of the dry ice production process.

[0081] As can be seen from the above, an embodiment of the present application provides a safe charging method based on a three-dimensional model. When a preset charging trigger condition is met, the state parameters in the inner cavity of the dry ice manufacturing equipment can be obtained. The above state parameters may include the powder density corresponding to the dry ice powder particles in the inner cavity and the real-time propulsion parameters of the pressure reducing piston in the inner cavity. The electronic device can import the preset three-dimensional simulation model through the above-obtained state parameters to simulate the charging process into the inner cavity, determine whether the current dry ice powder particles will cause component damage, and determine the powder processing strategy for avoiding component damage through the three-dimensional simulation model to eliminate the dry ice powder particles in the inner cavity; the electronic device can execute the powder processing operation in the powder processing strategy on the inner cavity, and after completing the powder processing operation, add liquid carbon dioxide to the inner cavity of the dry ice manufacturing equipment, thereby achieving the purpose of safely charging the dry ice manufacturing equipment. Compared with the existing dry ice manufacturing technology, before adding material to the inner cavity of the dry ice manufacturing equipment, the process of adding material to the inner cavity can be simulated through a three-dimensional simulation model, and a matching powder particle processing strategy can be generated to process the dry ice powder particles in the inner cavity before adding material, thereby improving the operating safety of the dry ice manufacturing equipment, avoiding the blockage of the pressure reducing piston due to the excessive density of the dry ice powder particles, resulting in damage to components, and extending the service life of the dry ice manufacturing equipment.

[0082] Figure 3 The specific implementation flow chart of S202 in a safe feeding method based on a three-dimensional model provided in the second embodiment of the present application is shown. Figure 3 As shown, relative to Figure 2 In the embodiment, the embodiment of the present application provides a safe feeding method based on a three-dimensional model, wherein S202 includes S201 to S2026, which are specifically described as follows:

[0083] In S2021, a preset dry ice particle size distribution function is imported according to the powder particle density to calculate the dry ice particle size distribution information in the cavity; the dry ice particle size distribution function is specifically:

[0084]

[0085] Among them, Gra[i] is the distribution probability corresponding to the i-th particle size in the preset particle size distribution sequence; the particle size distribution sequence is obtained by sorting each particle size based on volume size; BaseGra is the average particle size of the particle size distribution sequence; σ is the preset probability calibration coefficient; e is a natural constant.

[0086] In this embodiment, the electronic device can use big data statistics to obtain information about the powder particles generated in the inner cavity during the process of generating solid dry ice through throttling and decompression. By collecting a large amount of powder particle information from the manufacturing process, the upper and lower limits of the particle size of the powder particles during the production process can be determined. The electronic device can also perform big data analysis on the collected powder particle information from the historical production process to determine the particle sizes of multiple powder particles, thereby obtaining a particle size distribution sequence for the dry ice particles. The elements in this sequence are arranged according to particle size. Specifically, the first element in the particle size distribution sequence is the lower limit of the powder particle, the last element in the particle size distribution sequence is the upper limit of the powder particle, and the remaining elements are particle sizes determined based on the powder particle information from the historical production process.

[0087] In this embodiment, the electronic device can determine the current volume of the remaining space in the inner cavity based on the real-time advancement parameters of the decompression piston and the total volume of the inner cavity. Dry ice particles are evenly distributed in this remaining space. Therefore, the electronic device can determine the total amount of dry ice particles dispersed in the remaining space by calculating the product of the remaining space volume and the particle density.

[0088] In this embodiment, the electronic device uses the dry ice density distribution function to calculate the number of particles corresponding to each particle size, given a preset total amount of particles. Specifically, the total amount of particles is TotalNum, and the distribution probability corresponding to the i-th particle size is Gra[i]. Therefore, the number of particles corresponding to this particle size is: Num[i] = TotalNum * Gra[i]. The electronic device can calculate the number of particles corresponding to each particle size using the above method. After determining the number of particles corresponding to each particle size, the electronic device can obtain the corresponding dry ice particle size distribution information.

[0089] In S2022, based on the dry ice distribution particle size information, a dry ice distribution model in the cavity is constructed using the three-dimensional simulation model.

[0090] In this embodiment, after determining the dry ice distribution particle size information corresponding to the dry ice powder particles in the inner cavity, the electronic device can construct a corresponding number of powder particle models through a three-dimensional simulation model based on the number of powder particles corresponding to different particle sizes. After constructing the corresponding number of powder particle models for all particle sizes, they can be evenly distributed in the remaining space in the inner cavity, thereby achieving the purpose of adding powder particle models to the three-dimensional simulation model to realize the construction of the inner cavity environment.

[0091] In S2023, the propulsion position of the simulated piston in the three-dimensional inner cavity model corresponding to the inner cavity is adjusted using the real-time propulsion parameter.

[0092] In this embodiment, in addition to constructing a dry ice distribution model using a three-dimensional simulation model, the electronic device can also adjust the position of the simulated piston in the three-dimensional inner cavity model based on the real-time advancement parameters of the decompression piston. Specifically, the electronic device can determine the corresponding advancement distance of the decompression piston based on the real-time advancement parameters, determine the adjustment distance of the simulated piston based on the difference between the actual advancement distance and the advancement distance of the simulated piston in the three-dimensional inner cavity model, and update the advancement position of the simulated piston in the three-dimensional inner cavity model based on the adjustment distance.

[0093] In S2024, at least one of the powder and particle processing operations and an expected reduction volume after the powder and particle processing operation are determined based on the dry ice distribution model and the three-dimensional inner cavity model after updating the advancement position of the simulated piston; the expected reduction volume is an expected volume of liquid carbon dioxide obtained after the powder and particle processing operation.

[0094] In this embodiment, after determining the dry ice distribution model corresponding to the dry ice particles and updating the position of the simulated piston in the inner cavity, the electronic device can simulate the execution of corresponding powder processing operations in the inner cavity, such as adsorbing the dry ice particles suspended in the inner cavity and reducing the adsorbed dry ice particles to liquid carbon dioxide, for example, by melting the dry ice particles by increasing the temperature or heating, so as to determine the volume corresponding to the conversion of the adsorbed dry ice particles into liquid carbon dioxide, that is, the above-mentioned expected reduction volume.

[0095] In some possible implementations, the electronic device can determine the powder processing ratio and conversion ratio corresponding to the above-mentioned powder processing operation based on the above-mentioned state parameters, and determine the total amount of dry ice powder collected after performing the specified powder processing operation based on the above-mentioned dry ice powder distribution model and the above-mentioned powder processing ratio, and determine the above-mentioned expected volume based on the total amount of dry ice powder collected and the above-mentioned conversion ratio.

[0096] Furthermore, as another embodiment of the present application, the above S2024 specifically includes the following steps:

[0097] In S2024.1, based on the three-dimensional inner cavity model and the updated propulsion position, the expected propulsion distance of the simulated piston during the feeding process is determined.

[0098] In this embodiment, the hardware module used by the electronic device to process dry ice powder particles is specifically a pressure-reducing piston, that is, the adsorption component on the pressure-reducing piston adsorbs dry ice particles in the air. Based on this, when calculating the aforementioned expected reduction volume, the electronic device needs to simulate the advancement of the pressure-reducing piston in the inner cavity using a three-dimensional simulation model. Therefore, the expected advancement distance corresponding to the simulated piston during the feeding process can be determined based on the corresponding feeding duration and the corresponding advancement speed of the pressure-reducing piston. Since the dry ice manufacturing equipment achieves dry ice production through throttling and pressure reduction, the advancement speed corresponding to different positions of the throttle valve in the dry ice manufacturing equipment will also vary. Therefore, when determining the aforementioned expected advancement distance, the advancement speed corresponding to the position corresponding to the simulated piston can be determined based on the advancement position of the simulated piston, thereby improving the accuracy of the determination of the expected advancement distance.

[0099] In S2024.2, the amount of covering powder particles within the expected propulsion distance is determined based on the dry ice distribution model; the amount of covering powder particles is specifically:

[0100]

[0101] Wherein, TotalC is the amount of covering powder particles; α i is the adsorption probability corresponding to the i-th particle size; N is the total number of particle sizes contained in the particle size distribution sequence; S is the area of ​​the inner cavity; Dis is the expected propulsion distance; Destiy is the powder density.

[0102] In this embodiment, the electronic device can calculate the propulsion volume of the decompression piston based on the expected propulsion distance and the area corresponding to the inner cavity. For example, Figure 4 Schematic diagram of the propulsion volume of the pressure reducing piston provided by an embodiment of the present application is shown. Figure 4 As shown, the starting position of the decompression piston is A1. During the charging process, it moves the preset desired advancement distance Dis, reaching position A2. Therefore, the volume covered during this advancement process is specifically Dis*S. Because dry ice particles exist within this area, and the distribution probability of dry ice particles can be expressed as Gra[i], the number of particles adsorbed at different particle sizes during the movement can be calculated using the above method. The number of particles covered can be obtained by adding the numbers corresponding to all particle sizes.

[0103] In S2024.3, the expected reduction volume is determined based on the amount of covering powder particles.

[0104] In this embodiment, the electronic device can perform a reduction process on the collected dry ice particles to reduce the dry ice particles into gaseous carbon dioxide, then liquefy the gaseous carbon dioxide to obtain liquid carbon dioxide, and determine the volume of the liquefied carbon dioxide as the expected reduction volume.

[0105] In an embodiment of the present application, the electronic device adsorbs dry ice particles through a decompression piston, thereby being able to determine the amount of dry ice particles collected by simulating the advancement process of the decompression piston, thereby improving the accuracy of determining the expected restoration volume.

[0106] In S2025 , the calibration addition value is determined according to the target addition value and the expected reduction volume.

[0107] In this embodiment, after the electronic device determines the expected reduction volume corresponding to the adsorption and reduction of dry ice particles into liquid carbon dioxide, the adsorbed and reduced liquid carbon dioxide can be used as the raw material for adding material. Therefore, the above-mentioned target addition value can be numerically calibrated according to the expected reduction volume. For example, the above-mentioned expected reduction volume can be subtracted from the target addition value to determine the calibrated addition value.

[0108] In S2026 , the powder and particle processing strategy is generated based on the calibration dosing value and at least one of the powder and particle processing operations.

[0109] In this embodiment, the electronic device can generate a corresponding powder processing strategy based on the determined powder processing operation and the calibration dosing value obtained by the above calculation.

[0110] In some implementations, the electronic device can determine the applicable particle processing operation based on the decompression piston and the modules configured within the inner chamber. For example, if the decompression piston is configured with an adsorption module, the aforementioned particle processing operation can be a particle adsorption operation performed by the adsorption module. If a heating module is configured in a certain area within the inner chamber, the heating module can be controlled to heat to a preset temperature so that the dry ice particles passing through the corresponding area are processed, such as being vaporized and then liquefied to produce liquid carbon dioxide. The specific particle processing operation used can be configured based on the configuration of the hardware modules and is not limited here.

[0111] In an embodiment of the present application, the electronic device uses a three-dimensional simulation model to construct a dry ice distribution model corresponding to the dry ice particles and adjust the simulated piston in the inner cavity, so as to simulate the amount of powder collected when performing the dry ice powder processing operation, and then determine the volume of liquid carbon dioxide obtained after the dry ice particles are reduced. Then, it can achieve precise control of the feeding process, improve the accuracy of the dry ice manufacturing process, and also improve the utilization rate of the liquid carbon dioxide.

[0112] Figure 5 The specific implementation flow chart of the safe feeding method based on a three-dimensional model in S203 provided in the third embodiment of the present application is shown. Figure 5 , relative to Figure 3 In the embodiment, a safe feeding method based on a three-dimensional model provided in this embodiment includes S2031 to S2033, which are described in detail as follows:

[0113] Furthermore, the outer surface of the pressure reducing piston is provided with an adsorption component; the adsorption component comprises a barrier layer, a filter layer and a storage layer; the filter layer comprises a plurality of filter screens; the aperture of each filter screen corresponds to one of the particle sizes in the particle size distribution sequence.

[0114] For example, Figure 6 Schematic diagram of the structure of the pressure reducing piston provided by an embodiment of the present application is shown. Figure 6 As shown, the decompression piston 61 can move within the inner chamber 60 of the dry ice making device, thereby adjusting the air pressure within the inner chamber by moving within the inner chamber to achieve the purpose of producing dry ice in a throttling and decompression manner. The decompression piston includes an adsorption component 62, which is located at the head of the decompression piston. The adsorption component 62 includes a barrier layer 621, a filter layer 622, and a storage layer 623. The barrier layer 621 is provided in front of the adsorption component 62. When the adsorption component 62 is not needed to absorb dry ice particles, the barrier layer 621 is in a closed state. That is, the dry ice particles are blocked by the barrier layer 621 and cannot contact the filter layer 622 and the storage layer 623, thereby preventing filtration and adsorption.

[0115] When the electronic device needs to absorb dry ice particles through the adsorption component 62, the barrier layer 621 can be opened, and the dry ice particles can then be absorbed by the filter layer 622 and the storage layer 623. It should be noted that when the barrier layer 621 is closed, the filter layer 622 and the storage layer 623 are in a vacuum state. Therefore, after the barrier layer 621 is opened, due to the pressure difference, the dry ice particles outside can actively move toward the filter layer 622 and the storage layer 623 in the adsorption component 62 where the pressure is lower, thereby achieving the purpose of adsorption of the dry ice particles by the adsorption component 62.

[0116] In this embodiment, filter layer 622 includes multiple filters, each corresponding to a particle size within the particle size distribution sequence. These filters are capable of separating dry ice particles of varying particle sizes, thereby enabling subsequent decontamination. The filters are arranged in descending order of particle size, with the largest filter positioned near the front and the smallest filter positioned near the back. This allows dry ice particles of varying particle sizes to be separated in descending order.

[0117] The filter mesh on the filter layer 622 can heat the adsorbed dry ice, thereby accelerating the conversion of the dry ice into liquid carbon dioxide. The liquid carbon dioxide can be stored in the storage layer 623. Specifically, the adsorption process of the dry ice particles by the adsorption component is as follows:

[0118] In S2031 , during the process of advancing the decompression piston, the barrier layer in the adsorption component is opened to adsorb the dry ice particles in the inner cavity to the storage layer through the filter layer.

[0119] In this embodiment, before the particle handling operation is performed, the barrier layer is closed, meaning that the dry ice particles cannot come into contact with the filter layer or the storage layer. When dry ice particles need to be adsorbed, the barrier layer can be opened to allow the dry ice particles to come into contact with the filter layer. Because the filter layer includes filter screens corresponding to different particle sizes, dry ice particles of varying sizes can be separated. Furthermore, a heating element is provided in the filter screen to increase the temperature of the dry ice particles adhering to the filter screen, thereby reducing the large dry ice particles to small sizes. These particles then pass through the filter screen to the next filter screen, and so on, until they reach the storage layer.

[0120] In S2032, when the decompression piston is pushed to the charging trigger position, the barrier layer is closed and the storage layer is decompressed to reduce the dry ice particles in the storage layer to liquid carbon dioxide.

[0121] In this embodiment, the electronic device can control the decompression piston to advance from the current position to the preset charging trigger position, and when reaching the charging trigger position, open the above-mentioned barrier layer, thereby isolating the inner cavity from the storage layer and the filter layer of the adsorption component again, and perform pressure relief treatment on the above-mentioned area, that is, increase the air pressure in the area, so that the dry ice powder particles can be reduced to liquid carbon dioxide, wherein the pressure value of the pressure relief can be set according to actual conditions, specifically the pressure value corresponding to the reduction of dry ice powder particles to liquid carbon dioxide.

[0122] In S2033 , the liquid carbon dioxide in the storage layer and the liquid carbon dioxide in an amount equal to the calibrated addition value delivered through the feeding port are added to the inner cavity.

[0123] In this embodiment, since the electronic device has reached the preset feeding trigger position, it can deliver liquid carbon dioxide corresponding to the calibrated feeding value through the feeding port, and simultaneously deliver the liquid carbon dioxide obtained by reducing the dry ice particles in the storage layer to the inner cavity, thereby enabling the reuse of dry ice particles and improving the safety of dry ice manufacturing and the utilization rate of raw materials.

[0124] Figure 7 The flowchart of the specific implementation of the safe feeding method based on a three-dimensional model in S201 provided in the fourth embodiment of the present application is shown. Figure 7 , relative to Figure 2 In the embodiment, a safe feeding method based on a three-dimensional model is provided in S201, which includes: S2011 to S2013, which are described in detail as follows:

[0125] In S2011 , the actual volume of the solid dry ice formed in the inner cavity is determined by a sensor in the inner cavity.

[0126] In S2012 , the expected dry ice volume is determined according to the current real-time advancement parameter of the decompression piston.

[0127] In S2013 , if the difference between the expected dry ice volume and the actual volume is greater than a preset volume threshold, the state parameters of the current interior of the cavity are obtained.

[0128] In this embodiment, due to the different states of liquid carbon dioxide and solid dry ice, the actual volume of solid dry ice formed in the inner cavity can be determined, for example, using infrared sensors and pressure sensors. When there is a sufficient amount of liquid carbon dioxide remaining, the difference between the actual volume of solid dry ice and the expected volume is small. Therefore, a deviation value can be determined based on the difference between the expected dry ice volume and the actual volume corresponding to the real-time propulsion parameter. If the deviation value is excessive, i.e., the difference is greater than a preset volume threshold, it indicates that the current amount of liquid carbon dioxide remaining is insufficient and refilling is required. Therefore, a refilling process can be triggered, thereby enabling real-time monitoring of the solid dry ice production status within the dry ice production equipment cavity and improving the timeliness of refilling triggering.

[0129] Figure 8 The flowchart of the specific implementation of the safe feeding method based on a three-dimensional model in S203 provided in the fifth embodiment of the present application is shown. Figure 8 , relative to Figure 2-7 In any of the embodiments, the safe feeding method based on a three-dimensional model provided in this embodiment includes, in step S203, steps S801 to S803, which are described in detail as follows:

[0130] In S801, each of the powder processing operations is sequentially executed according to the operation order corresponding to each of the powder processing operations in the powder processing strategy;

[0131] In S802, after any powder processing operation is completed, the density of the dry ice powder particles in the inner cavity is determined;

[0132] In S803 , if the powder density is less than or equal to a preset density threshold, the subsequent powder processing operations following the any powder processing operation are stopped, and liquid carbon dioxide is added to the chamber based on the calibrated addition value.

[0133] In this embodiment, the powder processing strategy includes multiple powder processing operations, each of which can be assigned a corresponding processing order or processing priority. The electronic device can sequentially execute each powder processing operation according to the processing order and / or processing priority, and after each powder processing operation is completed, the real-time density of the dry ice powder in the inner cavity can be obtained again. If the powder density after the powder processing operation is executed is less than a preset density threshold, it indicates that there is no need to continue processing the dry ice powder, and the subsequent powder processing operations are stopped, and the feeding process is executed. Conversely, if the powder density in the inner cavity after the powder processing operation is executed is still greater than the above-mentioned density threshold, the next powder processing operation is executed.

[0134] In some possible implementations, if after all powder processing operations are performed, the powder density in the inner cavity is still greater than the preset powder threshold, it is recognized that the above-mentioned powder processing operations cannot meet the requirements of safe feeding. At this time, an abnormal prompt information can be generated to prompt the user to deal with the abnormal situation.

[0135] In an embodiment of the present application, the electronic device can perform various powder processing operations in sequence and detect the powder density after the processing is completed, so that the feeding process can be executed when the safety feeding is met, thereby ensuring the safety of feeding while improving the efficiency of dry ice production.

[0136] Figure 9 The flowchart of the specific implementation of the safe feeding method based on a three-dimensional model in S203 provided by the sixth embodiment of the present application is shown. Figure 9 , relative to Figure 2-7 In any of the embodiments, in the safe feeding method based on a three-dimensional model provided in this embodiment, the outer surface of the pressure reducing piston further includes a heating component; the above S203 includes: S901 to S902, which are specifically described as follows:

[0137] In S901, based on the temperature rise coefficient in the powder processing strategy, the heating component is controlled to operate at a power corresponding to the temperature rise coefficient to reduce dry ice powder within a preset range into liquid carbon dioxide;

[0138] In S902, the heating component is turned off after a preset heating time, and the reduced liquid carbon dioxide and the liquid carbon dioxide added in an amount equal to the calibration addition value are decompressed to obtain solid dry ice.

[0139] In this embodiment, the electronic device not only uses an adsorption component to absorb dry ice particles and convert them into liquid carbon dioxide, but also uses a heating method to convert dry ice particles into liquid carbon dioxide. Specifically, by activating a heating component on the surface of the pressure-reducing piston, the temperature of the surrounding area is raised as the pressure-reducing piston moves within the inner chamber, thereby increasing the temperature of the dry ice particles and converting them into the corresponding liquid carbon dioxide. After processing the dry ice particles, liquid carbon dioxide can be added. Based on the liquid carbon dioxide obtained from the dry ice particles and the added liquid carbon dioxide, the device throttles and reduces the pressure to continue producing dry ice.

[0140] In this embodiment, Figure 10 The structural block diagram of a safe feeding device based on a three-dimensional model provided by an embodiment of the present application is shown. The safe feeding device based on a three-dimensional model includes various units for executing Figure 2 The steps implemented by the first device in the corresponding embodiment. Figure 2 and Figure 2 For the sake of convenience, only the parts related to this embodiment are shown.

[0141] See also Figure 10 , a safe feeding device based on a three-dimensional model, including:

[0142] The charging trigger unit 101 is used to obtain the current state parameters of the inner cavity if the preset charging trigger conditions are met; the state parameters include the powder density of the dry ice particles and the real-time propulsion parameters of the decompression piston in the cavity;

[0143] a powder processing strategy determining unit 102 for importing the powder density and the propulsion parameters into a preset three-dimensional simulation model to determine a powder processing strategy corresponding to the decompression piston; the powder processing strategy includes a calibrated feeding value obtained by adjusting the target feeding value corresponding to the feeding trigger condition;

[0144] The feeding execution unit 103 is configured to add liquid carbon dioxide to the chamber based on the calibrated feeding value after completing at least one powder processing operation in the powder processing strategy.

[0145] It should be understood that Figure 10 In the structural block diagram of the device shown, each module is used to execute Figures 2 to 9 The steps in the corresponding embodiment, and for Figures 2 to 9 Each step in the corresponding embodiment has been explained in detail in the above embodiment. Figures 2 to 9 as well as Figures 2 to 9 The relevant descriptions in the corresponding embodiments will not be repeated here.

[0146] Figure 11 This is a structural block diagram of an electronic device provided by another embodiment of the present application. Figure 11 As described above, the electronic device 1100 of this embodiment includes: a processor 1110, a memory 1120, and a computer program 1130 stored in the memory 1120 and executable by the processor 1110, such as a program for a safe feeding method based on a three-dimensional model. When the processor 1110 executes the computer program 1130, the steps in each embodiment of the safe feeding method based on a three-dimensional model are implemented, such as Figure 2 Alternatively, the processor 1110 executes the computer program 1130 to implement the above Figure 9 The functions of each module in the corresponding embodiment are, for example, Figure 10 For details on the functions of the units 101 to 103, please refer to Figure 9 Related description in the corresponding embodiment.

[0147] Exemplarily, the computer program 1130 may be divided into one or more modules, one or more of which are stored in the memory 1120 and executed by the processor 1110 to complete the present application. One or more modules may be a series of computer program instruction segments capable of performing specific functions, and the instruction segments are used to describe the execution process of the computer program 1130 in the electronic device 1100. For example, the computer program 1130 may be divided into various unit modules, and the specific functions of each module are as described above.

[0148] The electronic device 1100 may include, but is not limited to, a processor 1110 and a memory 1120. Those skilled in the art will appreciate that Figure 11 It is only an example of the electronic device 1100 and does not constitute a limitation of the electronic device 1100. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the electronic device may also include input and output devices, network access devices, buses, etc.

[0149] The processor 1110 may be a central processing unit, or other general-purpose processor, digital signal processor, application-specific integrated circuit, off-the-shelf programmable gate array or other programmable logic device, discrete hardware component, etc. A general-purpose processor may be a microprocessor or any conventional processor.

[0150] The memory 1120 may be an internal storage unit of the electronic device 1100, such as a hard disk or memory of the electronic device 1100. The memory 1120 may also be an external storage device of the electronic device 1100, such as a plug-in hard disk, smart memory card, flash memory card, etc. equipped on the electronic device 1100. Furthermore, the memory 1120 may include both an internal storage unit of the electronic device 1100 and an external storage device.

[0151] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the scope of protection of the present application.

Claims

1. A safe feeding method based on a three-dimensional model, characterized in that: include: If the preset charging trigger condition is met, the current state parameters of the inner cavity are obtained; the state parameters include the powder density of the dry ice particles and the real-time propulsion parameters of the decompression piston in the cavity; Importing the powder density and the propulsion parameters into a preset three-dimensional simulation model to determine a powder processing strategy corresponding to the decompression piston; the powder processing strategy includes a calibrated feeding value obtained by adjusting the target feeding value corresponding to the feeding trigger condition; After completing at least one powder processing operation in the powder processing strategy, adding liquid carbon dioxide to the chamber based on the calibrated addition value; The step of importing the powder density and the propulsion parameters into a preset three-dimensional simulation model to determine a powder processing strategy corresponding to the pressure reducing piston includes: A preset dry ice particle size distribution function is imported according to the powder particle density to calculate the dry ice particle size distribution information in the cavity; the dry ice particle size distribution function is specifically: Wherein, Gra[i] is the distribution probability corresponding to the i-th particle size in the preset particle size distribution sequence; the particle size distribution sequence is obtained by sorting each particle size based on volume; BaseGra is the average particle size of the particle size distribution sequence; σ is the preset probability calibration coefficient; e is a natural constant; Based on the dry ice particle size distribution information, constructing a dry ice distribution model in the cavity through the three-dimensional simulation model; adjusting the propulsion position of the simulated piston in the three-dimensional inner cavity model corresponding to the inner cavity by using the real-time propulsion parameter; determining, based on the dry ice distribution model and the three-dimensional inner cavity model after updating the advancement position of the simulated piston, at least one of the powder and particle processing operations and an expected reduction volume after the powder and particle processing operation; the expected reduction volume being an expected volume of liquid carbon dioxide obtained after the powder and particle processing operation; Determining the calibration addition value based on the target addition value and the expected reduction volume; The particle handling strategy is generated based on the calibration dosing value and at least one of the particle handling operations.

2. The safe feeding method based on a three-dimensional model according to claim 1, characterized in that: Determining at least one of the powder and particle processing operations and an expected reduction volume after the powder and particle processing operation based on the dry ice distribution model and the three-dimensional inner cavity model after updating the advancement position of the simulated piston includes: determining an expected advancement distance of the simulated piston during the feeding process based on the three-dimensional inner cavity model and the updated advancement position; The amount of covering powder particles within the expected advancing distance is determined based on the dry ice distribution model; the amount of covering powder particles is specifically: Wherein, TotalC is the amount of covering powder particles; is the adsorption probability corresponding to the i-th particle size; N is the total number of particle sizes contained in the particle size distribution sequence; S is the area of ​​the inner cavity; Dis is the expected propulsion distance; The expected reduction volume is determined according to the amount of covering powder particles.

3. The safe feeding method based on a three-dimensional model according to claim 1, characterized in that: The outer surface of the pressure reducing piston is provided with an adsorption component; the adsorption component includes a barrier layer, a filter layer and a storage layer; the filter layer includes a plurality of filter screens; the aperture of each filter screen corresponds to a particle size in the particle size distribution sequence; After executing at least one powder processing operation in the powder processing strategy, adding liquid carbon dioxide to the chamber based on the calibrated addition value comprises: During the process of advancing the decompression piston, the barrier layer in the adsorption component is opened to adsorb the dry ice particles in the inner cavity to the storage layer through the filter layer; When the decompression piston is pushed to the charging trigger position, the barrier layer is closed and the storage layer is decompressed to reduce the dry ice particles in the storage layer to liquid carbon dioxide; The liquid carbon dioxide in the storage layer and the liquid carbon dioxide in an amount equal to the calibration addition value delivered through the feeding port are added to the inner cavity.

4. The safe feeding method based on a three-dimensional model according to claim 1, characterized in that: If the preset feeding trigger condition is met, the current state parameters of the inner cavity are obtained, including: determining the actual volume of the solid dry ice formed in the inner cavity by a sensor in the inner cavity; determining a desired dry ice volume according to the current real-time advancement parameter of the decompression piston; If the difference between the expected dry ice volume and the actual volume is greater than a preset volume threshold, the current state parameter of the inner cavity is obtained.

5. The safe feeding method based on a three-dimensional model according to any one of claims 1 to 4, characterized in that: After executing at least one powder processing operation in the powder processing strategy, adding liquid carbon dioxide to the chamber based on the calibrated addition value comprises: executing each of the powder processing operations in sequence according to the operation order corresponding to each of the powder processing operations in the powder processing strategy; After completing any particle processing operation, determining the particle density of the dry ice particles in the inner cavity; If the powder density is less than or equal to a preset density threshold, the subsequent powder processing operations after the any powder processing operation are stopped, and liquid carbon dioxide is added to the chamber based on the calibrated addition value.

6. The safe feeding method based on a three-dimensional model according to any one of claims 1 to 4, characterized in that: The outer surface of the pressure reducing piston further includes a heating component; After executing at least one powder processing operation in the powder processing strategy, adding liquid carbon dioxide to the chamber based on the calibrated addition value further includes: Based on the temperature rise coefficient in the powder processing strategy, controlling the heating component to operate at a power corresponding to the temperature rise coefficient to reduce dry ice powder within a preset range into liquid carbon dioxide; After a preset heating time, the heating component is turned off, and the reduced liquid carbon dioxide and the liquid carbon dioxide added in an amount equal to the calibration addition value are subjected to a decompression process to obtain solid dry ice.

7. A safe feeding device based on a three-dimensional model, characterized in that: Used to execute the safe feeding method based on the three-dimensional model according to any one of claims 1 to 6, the safe feeding device based on the three-dimensional model comprises: A charging trigger unit, configured to obtain current state parameters of the inner cavity if a preset charging trigger condition is met; the state parameters include the density of dry ice powder particles and the real-time propulsion parameters of the decompression piston in the cavity; a powder processing strategy determining unit, configured to import the powder density and the propulsion parameters into a preset three-dimensional simulation model to determine a powder processing strategy corresponding to the decompression piston; the powder processing strategy comprising a calibrated feeding value obtained by adjusting the target feeding value corresponding to the feeding trigger condition; a feeding execution unit, configured to add liquid carbon dioxide to the chamber based on the calibrated feeding value after completing at least one powder processing operation in the powder processing strategy; The powder and particle processing strategy determination unit is specifically used to: A preset dry ice particle size distribution function is imported according to the powder particle density to calculate the dry ice particle size distribution information in the cavity; the dry ice particle size distribution function is specifically: Wherein, Gra[i] is the distribution probability corresponding to the i-th particle size in the preset particle size distribution sequence; the particle size distribution sequence is obtained by sorting each particle size based on volume; BaseGra is the average particle size of the particle size distribution sequence; σ is the preset probability calibration coefficient; e is a natural constant; Based on the dry ice particle size distribution information, constructing a dry ice distribution model in the cavity through the three-dimensional simulation model; adjusting the propulsion position of the simulated piston in the three-dimensional inner cavity model corresponding to the inner cavity by using the real-time propulsion parameter; determining, based on the dry ice distribution model and the three-dimensional inner cavity model after updating the advancement position of the simulated piston, at least one of the powder and particle processing operations and an expected reduction volume after the powder and particle processing operation; the expected reduction volume being an expected volume of liquid carbon dioxide obtained after the powder and particle processing operation; Determining the calibration addition value based on the target addition value and the expected reduction volume; The particle handling strategy is generated based on the calibration dosing value and at least one of the particle handling operations.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method according to any one of claims 1 to 6 is implemented.

9. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

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