Atmospheric aerosol simulation device, aerosol control method, system, storage medium and program product

Abstract

The application relates to an atmospheric aerosol simulation device, an aerosol control method, a system, a storage medium and a program product, relates to the technical field of aerosol simulation control, and can improve the environmental stability and control precision of aerosol simulation. The device comprises a main cabin body, light transmission pipelines arranged at two ends of the main cabin body, an air compressor and a first air extraction assembly in communication with the light transmission pipelines, a raw material supply unit and a control unit; the main cabin body comprises a first space provided with an aerosol generation unit and a second space arranged around the first space; the second space is provided with an air extraction pipeline in communication with the first space and a second air extraction assembly; when the air compressor and the first air extraction assembly operate simultaneously, a blowing and sucking airflow barrier is formed in the light transmission pipeline; the second air extraction assembly is used for discharging the aerosol in the first space out of the main cabin body; and the control unit is used for controlling and adjusting the working state of at least one of the air compressor, the aerosol generation unit, the first air extraction assembly and the second air extraction assembly according to the aerosol transmittance in the first space.

Description

Technical Field

[0001] This application relates to the field of aerosol simulation and control technology, and in particular to an atmospheric aerosol simulation device, aerosol control method, system, computer equipment, computer-readable storage medium, and computer program product. Background Technology

[0002] With the deepening of research in atmospheric optics, environmental simulation, and aerosol science, generating a stable and controllable atmospheric aerosol environment under laboratory conditions has become a key requirement for conducting optical experiments such as transmittance, scattering, and image attenuation.

[0003] In traditional technologies, atmospheric aerosol simulation devices often employ a single-chamber structure, adjusting the concentration within the chamber by simply controlling the output of the aerosol generator. However, these traditional devices suffer from insufficient environmental control precision and stability, and are prone to problems such as aerosol escape. They cannot provide reliable and controllable aerosol simulation conditions for related experiments, thereby interfering with the accuracy of optical measurements and failing to meet the requirements for high-precision and controllable experiments. Summary of the Invention

[0004] Therefore, it is necessary to provide an atmospheric aerosol simulation device, an aerosol control method, a system, a computer device, a computer-readable storage medium, and a computer program product to address the aforementioned technical problems.

[0005] In a first aspect, this application provides an atmospheric aerosol simulation device, the device comprising: a main chamber, light-transmitting ducts disposed at both ends of the main chamber, an air compressor and a first exhaust assembly connected to the light-transmitting ducts, a raw material supply unit, and a control unit; the main chamber includes a first space and a second space arranged around the first space; wherein...

[0006] The first space is equipped with an aerosol generation unit;

[0007] The second space is provided with exhaust ducts that are respectively connected to the first space and the second exhaust assembly;

[0008] When the air compressor and the first exhaust assembly operate simultaneously, a blowing and suction airflow barrier is formed within the light-transmitting duct; the raw material supply unit is used to provide the aerosol generating unit with raw materials for generating aerosols; the second exhaust assembly is used to discharge the aerosols in the first space from the main chamber; the control unit is used to control and adjust the operating state of any one or more of the aerosol generating unit, the air compressor, the first exhaust assembly, and the second exhaust assembly according to the aerosol permeability in the first space.

[0009] In one embodiment, the device further includes a gentle airflow guide cavity; wherein,

[0010] The soft wind guide cavity is located inside the first space;

[0011] The top, bottom, and sides of the soft wind guide cavity are all composed of soft wind guide plates. The two ends of the soft wind guide cavity are connected to the light-transmitting pipes at both ends of the main cabin and are not equipped with soft wind guide plates. Each soft wind guide plate is provided with multiple through air holes. The air holes are used to disperse the aerosol generated by the aerosol generation unit into multiple airflows.

[0012] In one embodiment, the device further includes a condensate recovery unit;

[0013] The soft wind guide plate on the top surface of the soft wind guide cavity includes two intersecting inclined planes; the line of intersection of the two inclined planes extends from one end of the first space to the other end of the first space; each inclined plane is inclined from the line of intersection toward the corresponding side wall of the first space.

[0014] Between each pair of adjacent rows of air holes on the inclined plane, there is a drainage groove extending along the inclined direction of the inclined plane; the drainage groove is used to guide the condensate water to the soft wind guide plates on each side of the soft wind guide cavity;

[0015] The condensate recovery unit is located at the bottom of the first space; the condensate recovery unit is used to recover the condensate flowing down the soft wind guide plates along each side of the soft wind guide cavity.

[0016] In one embodiment, the condensate recovery unit includes a ramp, a groove, and a condensate recovery assembly; wherein,

[0017] The ramp is used to guide condensate into the groove; the groove is connected to the condensate recovery assembly; the condensate recovery assembly is used to recover the condensate flowing into the groove.

[0018] In one embodiment, the device further includes a state detection unit; the aerosol generating unit includes a plurality of nozzles; wherein,

[0019] The status detection unit includes a light source emitting component and a signal receiving component; the light source emitting component is located on the outer side of one end of the main cabin, and the signal receiving component is located on the outer side of the other end of the main cabin; the light source emitting component is used to emit multiple optical signals into the first space through the light-transmitting pipe; the signal receiving component is used to receive the multiple optical signals passing through the first space, and determine the aerosol transmittance at multiple locations in the first space based on the multiple optical signals passing through the first space.

[0020] The control unit is used to control and adjust the start / stop status, injection flow rate and / or injection sequence of each nozzle according to the aerosol permeability at the plurality of locations.

[0021] In one embodiment, an array of suction holes is provided at the connection between the light-transmitting pipe and the first space; an array of blowing holes is provided on the side of the light-transmitting pipe away from the first space; wherein...

[0022] The first exhaust assembly is used to extract gas from the light-transmitting pipe through the array of exhaust holes;

[0023] The air compressor is used to blow gas into the light-transmitting pipe through the array of air-blowing holes.

[0024] Secondly, this application also provides an atmospheric aerosol simulation control method using an atmospheric aerosol simulation device, comprising:

[0025] In response to a start signal for the air compressor and the first exhaust assembly, the air compressor and the first exhaust assembly are started;

[0026] When the air compressor and the first exhaust assembly are operating simultaneously to form a blowing-suction airflow barrier within the light-transmitting duct, the aerosol generating unit is activated in response to an activation signal for the aerosol generating unit, and the second exhaust assembly is activated in response to an activation signal for the second exhaust assembly; the aerosol generating unit is used to spray aerosols within the first space; the second exhaust assembly is used to exhaust the aerosols within the first space from the main body.

[0027] Obtain the aerosol permeability within the first space;

[0028] Based on the aerosol permeability in the first space, control and adjust the working state of any one or more of the aerosol generating unit, the air compressor, the first exhaust assembly, and the second exhaust assembly.

[0029] Thirdly, this application also provides an aerosol control system using an atmospheric aerosol simulation device, the system comprising:

[0030] A first start-up module is configured to start the air compressor and the first exhaust assembly in response to a start-up signal for the air compressor and the first exhaust assembly.

[0031] The second start-up module is used to, in response to a start-up signal for the aerosol generating unit, activate the aerosol generating unit and the second exhaust assembly, in response to a start-up signal for the second exhaust assembly, when the air compressor and the first exhaust assembly are operating simultaneously to form a blowing-suction airflow barrier within the light-transmitting duct; the aerosol generating unit is used to spray aerosols within the first space; the second exhaust assembly is used to discharge the aerosols within the first space from the main body.

[0032] The acquisition module is used to acquire the aerosol permeability in the first space;

[0033] The control and adjustment module is used to control and adjust the working state of any one or more of the aerosol generating unit, the air compressor, the first exhaust assembly, and the second exhaust assembly according to the aerosol permeability in the first space.

[0034] Fourthly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0035] In response to a start signal for the air compressor and the first exhaust assembly, the air compressor and the first exhaust assembly are started;

[0036] When the air compressor and the first exhaust assembly are operating simultaneously to form a blowing-suction airflow barrier within the light-transmitting duct, the aerosol generating unit is activated in response to an activation signal for the aerosol generating unit, and the second exhaust assembly is activated in response to an activation signal for the second exhaust assembly; the aerosol generating unit is used to spray aerosols within the first space; the second exhaust assembly is used to exhaust the aerosols within the first space from the main body.

[0037] Obtain the aerosol permeability within the first space;

[0038] Based on the aerosol permeability in the first space, control and adjust the working state of any one or more of the aerosol generating unit, the air compressor, the first exhaust assembly, and the second exhaust assembly.

[0039] Fifthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, performs the following steps:

[0040] In response to a start signal for the air compressor and the first exhaust assembly, the air compressor and the first exhaust assembly are started;

[0041] When the air compressor and the first exhaust assembly are operating simultaneously to form a blowing-suction airflow barrier within the light-transmitting duct, the aerosol generating unit is activated in response to an activation signal for the aerosol generating unit, and the second exhaust assembly is activated in response to an activation signal for the second exhaust assembly; the aerosol generating unit is used to spray aerosols within the first space; the second exhaust assembly is used to exhaust the aerosols within the first space from the main body.

[0042] Obtain the aerosol permeability within the first space;

[0043] Based on the aerosol permeability in the first space, control and adjust the working state of any one or more of the aerosol generating unit, the air compressor, the first exhaust assembly, and the second exhaust assembly.

[0044] Sixthly, this application also provides a computer program product, including a computer program that, when executed by a processor, performs the following steps:

[0045] In response to a start signal for the air compressor and the first exhaust assembly, the air compressor and the first exhaust assembly are started;

[0046] When the air compressor and the first exhaust assembly are operating simultaneously to form a blowing-suction airflow barrier within the light-transmitting duct, the aerosol generating unit is activated in response to an activation signal for the aerosol generating unit, and the second exhaust assembly is activated in response to an activation signal for the second exhaust assembly; the aerosol generating unit is used to spray aerosols within the first space; the second exhaust assembly is used to exhaust the aerosols within the first space from the main body.

[0047] Obtain the aerosol permeability within the first space;

[0048] Based on the aerosol permeability in the first space, control and adjust the working state of any one or more of the aerosol generating unit, the air compressor, the first exhaust assembly, and the second exhaust assembly.

[0049] The aforementioned atmospheric aerosol simulation device, aerosol control method, system, computer equipment, computer-readable storage medium, and computer program product include an atmospheric aerosol simulation device comprising a main chamber, light-transmitting ducts located at both ends of the main chamber, an air compressor and a first exhaust assembly connected to the light-transmitting ducts, a raw material supply unit, and a control unit. The main chamber includes a first space and a second space arranged around the first space. The first space is equipped with an aerosol generation unit, and the second space is equipped with exhaust ducts connected to the first space and the second exhaust assembly, respectively. When the air compressor and the first exhaust assembly operate simultaneously, a blowing and suction airflow barrier is formed within the light-transmitting ducts. The raw material supply unit provides the aerosol generation unit with raw materials for generating aerosols. The second exhaust assembly discharges aerosols from the first space from the main chamber. The control unit controls and adjusts the operating states of any one or more of the air compressor, aerosol generation unit, first exhaust assembly, and second exhaust assembly based on the aerosol permeability within the first space. Compared to traditional technologies, this application employs a dual-layer structure of a first space and an encircling second space. A blowing-and-suction airflow barrier is formed at the light-transmitting duct through the coordinated operation of the first exhaust component and the air compressor. This not only mitigates temperature changes within the first space, reducing aerosol evaporation anomalies caused by temperature fluctuations, but also effectively blocks the diffusion of aerosols from the main chamber along the light-transmitting duct and reduces interference from external airflow on the experimental optical path. Simultaneously, it avoids concentration fluctuations caused by aerosol loss, thereby ensuring the stability of the aerosol simulation environment. Furthermore, this application uses a control unit to monitor the aerosol transmittance in the first space in real time and dynamically adjusts the operating status of any one or more of the air compressor, aerosol generation unit, first exhaust component, and second exhaust component accordingly. This forms a closed-loop feedback control for aerosol simulation, maintaining a stable, controllable, and highly accurate atmospheric aerosol simulation environment, thereby improving the detection accuracy and reliability of optical transmittance, scattering, and image attenuation. Attached Figure Description

[0050] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 This is a three-dimensional structural schematic diagram of an atmospheric aerosol simulation device in one embodiment;

[0052] Figure 2(a) is a three-dimensional structural diagram of the main body of the atmospheric aerosol simulation chamber in one embodiment;

[0053] Figure 2(b) is a cross-sectional perspective view of an atmospheric aerosol simulation chamber in one embodiment;

[0054] Figure 2(c) is a cross-sectional schematic diagram of an atmospheric aerosol simulation chamber in one embodiment;

[0055] Figure 3 This is a schematic diagram illustrating the generation of a blow-suction airflow barrier in one embodiment;

[0056] Figure 4 This is a flowchart illustrating an aerosol control method using an atmospheric aerosol simulation device in one embodiment.

[0057] Figure 5 This is a structural block diagram of an aerosol control system using an atmospheric aerosol simulation device in one embodiment.

[0058] Figure 6 This is an internal structural diagram of a computer device in one embodiment.

[0059] Explanation of reference numerals in the attached figures:

[0060] 101. Main hull,

[0061] 1011. Aerosol generation unit.

[0062] 1012. Gentle airflow guide cavity.

[0063] 1013. Exhaust duct

[0064] 1014. Second exhaust assembly,

[0065] 102. Light-transmitting duct,

[0066] 1021. Array of small extraction holes.

[0067] 1022. Air blowing hole array,

[0068] 1023. Fiber optic interface.

[0069] 103. Air compressor

[0070] 104. Raw material supply unit

[0071] 105. Control unit

[0072] 106. Light source emitting assembly,

[0073] 107. Signal receiving component. Detailed Implementation

[0074] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0075] It should be noted that when an element is referred to as being "located" on another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "one side," "the other side," "one end," "the other end," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation. These terms are only used to distinguish between the two sides / ends of an element. The terms "first," "second," etc., used in this application can be used to describe various objects, but these objects are not limited by these terms. These terms are only used to distinguish between the first object and the second object.

[0076] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "comprising" and any variations thereof as used herein are intended to cover a non-exclusive inclusion. The term "a plurality of" as used herein refers to two or more. The term "and / or" as used herein refers to one of the embodiments or any combination of multiple embodiments.

[0077] In one exemplary embodiment, such as Figure 1 As shown, an atmospheric aerosol simulation device is provided. The device may include: a main body 101, light-transmitting pipes 102 disposed at both ends of the main body 101, an air compressor 103 and a first exhaust assembly connected to the light-transmitting pipes 102, a raw material supply unit 104 and a control unit 105; the main body 101 includes a first space and a second space arranged around the first space.

[0078] In this embodiment, the main cabin 101, the light-transmitting pipes 102 located at both ends of the main cabin 101, the air compressor 103 connected to the light-transmitting pipes 102, the first exhaust assembly, and the raw material supply unit 104 can together constitute an atmospheric aerosol simulation chamber. The atmospheric aerosol simulation chamber is one of the main equipment of the atmospheric aerosol simulation device. The atmospheric aerosol simulation chamber is mainly used to simulate cloud and fog aerosols. It can be connected in series with other equipment (such as control unit 105, status detection unit, and turbulence simulation chamber) to realize the comprehensive simulation of the atmospheric transmission environment. The main body 101 of the atmospheric aerosol simulation chamber can adopt a double-layer structure design with inner and outer chambers. The first space (i.e., the inner chamber) is the aerosol generation chamber, and the second space is the outer chamber surrounding the inner chamber. This design is mainly for two reasons: First, for safety reasons, the outer chamber acts as a protective cover, which can isolate the inner chamber from the outside air and protect the pipes, line interfaces and wiring facilities laid in the second space. At the same time, the overall structure looks more beautiful and compact. Second, it facilitates maintenance and repair, making it convenient for the atmospheric aerosol simulation chamber to be inspected and repaired. Furthermore, to facilitate assembly, transportation, and installation, the aerosol generation chamber is divided into two sections along its length, each section being 2m long, for a total length of 4m. The height of the aerosol generation chamber can be set to 2.12m, and the width to 2.4m. The total length of the outer chamber can be set to 6000mm (using negative tolerances to ensure the total length does not exceed 6000mm), the width to 3830mm, and the height to 2900mm. The overall dimensions meet the limit requirement of not exceeding 6000mm×4000mm×3000mm. The aerosol generation chamber sits on a base with shock absorption function to reduce the impact of external vibrations on the stability of the chamber and control the deformation of the chamber. The light-transmitting duct 102 of the atmospheric aerosol simulation chamber is cylindrical, with a light-transmitting aperture that can be set to 1000mm (using positive tolerances to ensure the aperture is not less than 1000mm). The center of the light-transmitting duct 102 is 1.54m above the ground, a height consistent with the center height of the external turbulence simulation chamber and measuring equipment for interface compatibility. One end of the light-transmitting duct 102 is a light-transmitting window, and the other end connects to the main chamber 101. The outer chamber also has exhaust ducts 1013 that connect to the inner chamber and the second exhaust assembly 1014, respectively. These exhaust ducts 1013 extract aerosols from the inner chamber to adjust and dilute the aerosol particle concentration. Inspection doors can also be provided on both side walls of the outer chamber for easy access to internal equipment for inspection and maintenance. To ensure the thermal insulation performance of the inner chamber and adapt to the aerosol generation environment, both the aerosol generation chamber and the outer chamber are made of aluminum alloy, with smooth inner and outer surfaces coated with anti-rust paint. The inner wall of the aerosol generation chamber has also been treated with anti-oxidation and waterproofing to resist long-term erosion by water mist aerosols.In addition, a heat insulation layer (such as filling with heat insulation material or retaining an air gap) is installed between the inner and outer compartments to reduce heat exchange between the inner and outer compartments, thereby maintaining the temperature stability required for aerosol generation in the inner compartment (such as using a chiller to keep the water temperature at around 10°C).

[0079] As shown in Figure 2(b), the first space is provided with an aerosol generation unit 1011.

[0080] The second space is provided with an exhaust duct 1013 that is connected to the first space; as shown in Figure 2(a), the exhaust duct 1013 is also connected to the second exhaust assembly 1014.

[0081] When the air compressor 103 and the first exhaust assembly operate simultaneously, a blowing and suction airflow barrier is formed within the light-transmitting duct 102. The raw material supply unit 104 is used to supply the raw materials for generating aerosols to the aerosol generation unit 1011; the second exhaust assembly 1014 is used to discharge the aerosols in the first space from the main chamber 101; and the control unit 105 is used to control and adjust the operating state of any one or more of the air compressor 103, the aerosol generation unit 1011, the first exhaust assembly, and the second exhaust assembly 1014 according to the aerosol permeability in the first space.

[0082] For example, the raw material can be liquid water; the aerosol can be cloud aerosol. The raw material supply unit 104 can include a chiller and a water pump; the chiller can be used to cool the liquid water and maintain it at approximately 10°C; the water pump can be used to transport the cooled liquid water from the chiller to the aerosol generation unit 1011. The aerosol generation unit 1011 can be used to generate cloud aerosols from the liquid water and disperse the cloud aerosols into the first space. The aerosol generation unit 1011 can, together with the pipeline supply system, high-pressure gas source system, water source, flow meter, and valve control system, constitute a cloud aerosol generation system. The pipeline supply system can consist of a high-pressure gas source, gas delivery pipeline, liquid delivery pipeline, liquid propellant tank, etc. The control unit 105 can be used to control and adjust the speed of the water pump according to the aerosol permeability in the first space to change the water flow rate. The blowing and suction airflow barrier can be an air curtain or a wind curtain. To prevent aerosol particles from escaping through the light-transmitting windows along the light-transmitting ducts 102 at both ends of the main cabin 101, this embodiment uses a first exhaust assembly and an air compressor 103 operating simultaneously to form an air curtain or air screen within the light-transmitting duct 102. The first exhaust assembly is used to extract gas from the light-transmitting duct 102, and the air compressor 103 is used to supply air into the light-transmitting duct 102. The air curtain / air screen separates the internal environment of the main cabin from the external air, making the main cabin 101 relatively sealed, i.e., the first space relatively enclosed, thereby reducing the escape of cloud aerosols. The second exhaust assembly 1014 can be connected to one end of the exhaust duct 1013, and the other end of the exhaust duct 1013 can be connected to the first space through a micro-pressure exhaust port. The micro-pressure exhaust port can be located on the top surface and side wall of the first space, and the exhaust duct 1013 can be located within the second space. The second exhaust assembly 1014 can be used to discharge aerosols in the first space from the main chamber 101, thereby reducing the concentration of aerosol particles in the first space and achieving effective dilution of the aerosols in the first space. The aerosols are discharged from the main chamber after passing through a micro-pressure exhaust port, exhaust pipe 1013, and the second exhaust assembly 1014 in sequence.

[0083] In one specific implementation of this embodiment, four micro-pressure exhaust vents are respectively opened on the top surface and two side walls of the first space. These vents are connected to adjustable-speed micro-exhaust fans or vacuum pumps. Through these adjustable-speed micro-exhaust fans or vacuum pumps, aerosols within the first space can be effectively extracted and diluted, thereby reducing the concentration of aerosol particles inside the chamber. The micro-exhaust fans or vacuum pumps connected to the micro-pressure exhaust vents can employ micro-pressure control, ensuring a slightly negative pressure environment within the first space while simultaneously adjusting the concentration of cloud-like aerosol particles inside the first space.

[0084] In another specific implementation of this embodiment, the control unit 105 can be an electrical control system based on a PLC (Programmable Logic Controller) (such as a control cabinet with a built-in PLC or a digital computer). The control unit 105 has advantages such as a unified programming platform, efficient data collaboration, dynamic start / stop via an HMI (Human-Machine Interface) channel, protocol compatibility, and integration of multiple protocol interfaces such as Profinet and EtherCAT (Ethernet for Control Automation Technology), allowing easy access to third-party devices. The control unit 105 is communicatively connected to the status detection unit, water pump, air compressor 103, aerosol generation unit 1011, first exhaust assembly, and second exhaust assembly 1014 (e.g., wired connections within the second space). The status detection unit can be used to detect the aerosol permeability within the first space at preset time intervals (e.g., every 10 seconds). The control unit 105 can be used to obtain the aerosol transmission rate determined by the state detection unit based on the communication connection between the control unit 105 and the state detection unit, generate a first control command for the water pump based on the aerosol transmission rate, and send the first control command to the water pump based on the communication connection between the control unit 105 and the water pump, so that the water pump responds to the first control command to adjust its working state (such as the start-stop state and / or speed of the water pump), that is, adjust the water flow rate delivered by the water pump to the aerosol generation unit 1011, and adjust the amount of aerosol sprayed by the aerosol generation unit 1011 (such as the amount of mist output from the ultrasonic atomizing nozzle) by controlling and adjusting the water flow rate, thereby adjusting the aerosol generation speed. The control unit 105 can also be used to generate a second control command for a target object (i.e., any one or more of the aerosol generation unit 1011, the second exhaust assembly 1014, the first exhaust assembly, and the air compressor 103) based on the aerosol permeability. Based on the communication connection between the control unit 105 and the target object, the second control command is sent to the target object to cause it to adjust its operating state (such as its start / stop state, rotation speed, and flow rate) in response to the second control command, thereby adjusting the aerosol generation rate and the aerosol particle concentration in the first space. In this embodiment, the control accuracy of the aerosol permeability can also be represented by the average value and / or standard deviation of each aerosol permeability over a preset time period (e.g., 1 minute), allowing the aerosol to be stabilized within the control accuracy index for a certain period of time through aerosol control.

[0085] The aforementioned atmospheric aerosol simulation device includes a main chamber 101, light-transmitting ducts 102 located at both ends of the main chamber, an air compressor 103 connected to the light-transmitting ducts 102, a first exhaust assembly, a raw material supply unit 104, and a control unit 105. The main chamber 101 includes a first space and a second space arranged around the first space. The first space is equipped with an aerosol generation unit 1011, and the second space is equipped with exhaust ducts 1013 connected to the first space and the second exhaust assembly 1014, respectively. The air compressor 103 and the first exhaust assembly 1014 are connected to each other. When the air components are running simultaneously, a blowing and suction airflow barrier is formed in the light-transmitting duct 102; the raw material supply unit 104 is used to provide the raw materials for generating aerosols to the aerosol generation unit 1011; the second exhaust assembly 1014 is used to discharge the aerosols in the first space from the main chamber 101; the control unit 105 is used to control and adjust the working state of any one or more of the air compressor 103, the aerosol generation unit 1011, the first exhaust assembly, and the second exhaust assembly 1014 according to the aerosol permeability in the first space. Compared to traditional technologies, this embodiment employs a double-layer structure of a first space and an encircling second space. A blowing-and-suction airflow barrier is formed at the light-transmitting duct 102 through the coordinated operation of the first exhaust component and the air compressor 103. This not only mitigates temperature changes within the first space and reduces aerosol evaporation anomalies caused by temperature fluctuations, but also effectively blocks the diffusion of aerosols from the main chamber 101 along the light-transmitting duct 102 and reduces interference from external airflow on the experimental optical path. Simultaneously, it avoids concentration fluctuations caused by aerosol loss, thereby ensuring the stability of the aerosol simulation environment. Furthermore, this embodiment uses a control unit 105 to monitor the aerosol transmittance in the first space in real time and dynamically adjusts the operating status of any one or more of the air compressor 103, aerosol generation unit 1011, first exhaust component, and second exhaust component 1014 accordingly. This forms a closed-loop feedback control for aerosol simulation, maintaining a stable, controllable, and highly accurate atmospheric aerosol simulation environment, thereby improving the detection accuracy and reliability of optical transmittance, scattering, and image attenuation.

[0086] In one exemplary embodiment, the atmospheric aerosol simulation device further includes a gentle wind guide cavity 1012.

[0087] As shown in Figure 2(b), the soft wind guide cavity 1012 is located inside the first space. The top, bottom, and all sides of the soft wind guide cavity 1012 are composed of soft wind guide plates. The two ends of the soft wind guide cavity 1012 are connected to the light-transmitting pipes 102 at both ends of the main cabin 101, but do not have soft wind guide plates. Each soft wind guide plate has multiple through-holes; these holes are used to disperse the aerosol generated by the aerosol generation unit 1011 into multiple airflows.

[0088] For example, to ensure the uniform distribution of the generated cloud aerosol within the first space, the soft wind guiding cavity 1012 adopts the mesh structure design principle of a windless air conditioner. Specifically, the top, bottom, and sides of the soft wind guiding cavity 1012 are all composed of soft wind guiding plates. The two ends of the soft wind guiding cavity 1012 are connected to the light-transmitting pipes 102 at both ends of the main cabin 101, but without soft wind guiding plates. The soft wind guiding plates are multi-layered microporous mesh structures, with the pore diameter set to 3mm to 5mm and the spacing between adjacent pores set to 5mm. The pores can be used to disperse the aerosol airflow into multiple airflow streams (such as fine air filaments), eliminating 60% to 70% of the airflow velocity. Among them, the aerosol diffusion within the soft wind guiding cavity 1012 is mainly turbulent diffusion (ultrasonic nozzle velocity is less than 2m / s, aerosol particle size is concentrated in 10 to 20μm), accompanied by gravity settling. As shown in Figure 2(b), the gentle airflow guide plates are distributed around the first space (including the top, bottom, and two sides of the gentle airflow guide cavity 1012), ensuring that the aerosol airflow is uniformly introduced into the first space. Furthermore, the nozzles of the aerosol generation unit 1011 are not horizontally or vertically aligned, but rather at angles of 60° to 80° with both the horizontal and vertical planes, further enhancing the uniform distribution of the aerosols. Because this simulation chamber employs an inner and outer chamber structure, with the inner chamber isolated from the laboratory environment, the evaporation of aerosols due to temperature changes is negligible.

[0089] In one exemplary embodiment, the atmospheric aerosol simulation device further includes a condensate recovery unit.

[0090] As shown in Figure 2(b), the top surface of the soft air guide plate of the soft air guide cavity 1012 includes two intersecting inclined planes; the intersection line of the two inclined planes extends from one end of the first space to the other end of the first space; each inclined plane is inclined from the intersection line towards the corresponding side wall of the first space; between each pair of adjacent rows of air holes on the inclined plane, there is a guide groove extending along the inclined direction of the inclined plane. The guide groove is used to guide the condensate to the soft air guide plates on each side of the soft air guide cavity 1012. A condensate recovery unit is located at the bottom of the first space; the condensate recovery unit is used to recover the condensate flowing down the soft air guide plates on each side of the soft air guide cavity 1012.

[0091] For example, as shown in Figure 2(b), to prevent condensate from dripping at the light-transmitting pipe 102, the soft air guide plate on the top surface of the soft air guide cavity 1012 can be designed in a triangular (i.e., herringbone) shape. The angle formed by the two inclined planes prevents condensate from dripping vertically directly from the top. The drainage groove can refer to shallow straight scratches engraved between each exhaust hole, with the extension direction consistent with the inclined direction. Based on this, the condensate on the soft air guide plate on the top surface of the soft air guide cavity 1012 first flows along the drainage groove to the top edge, then transfers to the soft air guide plate on the side of the soft air guide cavity 1012, and flows downward along the side wall by gravity. After dripping to the bottom of the first space, the condensate flows down the slope and finally enters the condensate recovery unit (such as a water collection tank).

[0092] In one exemplary embodiment, the condensate recovery unit includes a ramp, a groove, and a condensate recovery assembly.

[0093] The ramp is used to guide condensate into the groove; the groove is connected to the condensate recovery component; the condensate recovery component is used to recover the condensate flowing into the groove.

[0094] For example, a slope with a preset angle is provided at the bottom of the first space, so that the condensate of the cloud aerosol can enter the groove along the slope and then flow into the condensate recovery component.

[0095] In one exemplary embodiment, the atmospheric aerosol simulation device further includes a state detection unit; the aerosol generation unit 1011 includes a plurality of nozzles.

[0096] The status detection unit includes a light source emitting component 106 and a signal receiving component 107. The light source emitting component 106 is located on the outer side of one end of the main cabin, and the signal receiving component 107 is located on the outer side of the other end of the main cabin. The light source emitting component 106 is used to emit multiple optical signals into the first space through the light transmission pipe 102. The signal receiving component 107 is used to receive the multiple optical signals passing through the first space and determine the aerosol transmittance at multiple locations within the first space based on the multiple optical signals passing through the first space. The control unit 105 is used to control and adjust the start / stop status, injection flow rate, and / or injection timing of each nozzle based on the aerosol transmittance at multiple locations.

[0097] For example, the nozzles included in the aerosol generation unit 1011 may be ultrasonic atomizing nozzles, which may be distributed on the top and side walls of the aerosol generation chamber (i.e., the first space). The control unit 105 may be a PLC-based electronic control system. The control unit 105 is communicatively connected to the status detection unit and the ultrasonic atomizing nozzles. Due to the large overall size of the main chamber and the size of the light-transmitting window, multiple measurement paths can be set in this embodiment to avoid errors caused by a single measurement path. Specifically, the status detection unit may include, for example, Figure 1 The diagram shows a light source emitting assembly 106 located on the outer side of one end of the main cabin and a signal receiving assembly 107 located on the outer side of the other end of the main cabin. The light source emitting assembly 106 is used to emit multiple optical signals into the first space through a light-transmitting pipe 102. The signal receiving assembly 107 is used to receive the multiple optical signals passing through the first space and determine the aerosol transmittance at multiple locations within the first space based on the multiple optical signals passing through the first space. The control unit 105 can be used to obtain the aerosol transmission rate at multiple locations within the first space determined by the state detection unit based on the communication connection between the control unit 105 and the state detection unit. Based on the aerosol transmission rate at multiple locations within the first space, it generates a first control command for each ultrasonic atomizing nozzle. Based on the communication connection between the control unit 105 and each ultrasonic atomizing nozzle, it sends a second control command to each ultrasonic atomizing nozzle, causing each ultrasonic atomizing nozzle to adjust its working state in response to the second control command (e.g., controlling the opening and closing of each battery valve group via PWM (Pulse Width Modulation), controlling the number of spray groups via RS232 serial port, and controlling the spray flow rate via analog signals). Since the ultrasonic atomizing nozzles produce a large amount of water mist, intermittent PWM pulse control can be used. The ultrasonic atomizing nozzles can be used to atomize and spray liquid water at a set temperature (e.g., 10°C) to simulate cloud and fog aerosols in a high-altitude, low-temperature environment within the first space.

[0098] In one specific implementation of this embodiment, as shown in Figure 2(c), the status detection unit can transmit and receive multiple optical signals using an optical fiber transceiver method. Therefore, the light source emitting component 106 and the signal receiving component 107 do not need to be strictly aligned with the light transmission windows at both ends of the main body 101; these two components can be installed at appropriate positions at both ends. The light source emitting component 106 may include a white light source, a power supply, a collimator, an electric optical shutter and its controller, a beam splitter, and an optical fiber interface. The electric optical shutter can be used to cut off and conduct the beam output, facilitating beam on / off adjustment during multi-optical fiber alignment operations and system testing. The front and rear collimators are for matching beam docking. Specifically, the light emitted from the white light source is collimated and coupled to the motorized optical shutter, then split into multiple optical signals via a beam splitter. Each optical signal is coupled to a fiber optic interface 1023 (such as the light transmission window and multiple transmitting interfaces on the outer ring of the main body 101) at one end of the main body 101. This allows the preset optical signals to pass through the main body 101 along different light transmission paths and enter the fiber optic interface 1023 (such as the light transmission window and multiple receiving interfaces on the outer ring of the main body 101) at the other end of the main body 101. (The relative positions of the ports are the same as those of the receiving interface and the light transmission window). After the optical signal output from the fiber optic interface 1023 at the other end of the main body 101 is collimated by the collimator, each collimated optical signal is guided by optical fiber and then received by a spectrometer located on the outer side of the other end of the main body 101. The spectrometer can be used to acquire radiation intensity (light intensity) information in the visible to near-infrared band. The spectrometer has a certain spectral resolution and can select wavelengths as needed and calculate the aerosol transmittance at that wavelength. The optical fibers connected to the fiber optic interfaces 1023 on the outer ring of the light transmission window of the main body 101 can be used to establish a calibration relationship with the optical fibers connected to the fiber optic interfaces 1023 on the light transmission window of the main body 101. The specific calibration method is as follows:

[0099] First, connect each optical fiber to the light-transmitting window of the main cabin 101 and the optical fiber interfaces 1023 on its outer ring. Then, through multiple rounds of experiments, analyze the spatiotemporal variation characteristics (i.e., aerosol transmittance) of the measurement signals (i.e., the optical signals transmitted through the optical fibers connected to the interfaces of the light-transmitting window) and calculation results of each optical fiber in the light-transmitting area, as well as the spatiotemporal variation characteristics of the measurement signals (i.e., the optical signals transmitted through the optical fibers connected to the interfaces of the outer ring of the light-transmitting window) and calculation results of each optical fiber in the surrounding area. Summarize the mutual rules and establish a functional relationship between the calculation results corresponding to the measurement signals of each optical fiber in the surrounding area and the calculation results corresponding to the measurement signals of each optical fiber in the light-transmitting area. In the formal experiment, the optical fibers in the light-transmitting area (i.e., the optical fibers connected to the optical fiber interfaces 1023 of the light-transmitting window) can be removed, and the aerosol state in the first space can be monitored through the optical fibers in the surrounding area. The aerosol state in the light-transmitting area can be determined based on the monitoring data of the optical fibers in the surrounding area and the above functional relationship. This functional relationship needs to be recalibrated periodically according to the actual situation.

[0100] In another specific implementation of this embodiment, the specific distribution position of each ultrasonic atomizing nozzle in the first space can be determined according to parameters such as the spray distance, spray height, and spray flow rate of each ultrasonic atomizing nozzle, as shown in Figure 2(c). The ultrasonic atomizing nozzles in the first space can be set to spray in pairs, and each group of spray boxes (i.e., boxes used to fix multiple ultrasonic atomizing nozzles) is installed around the first space, so that the cloud aerosol can be evenly distributed in the first space. There can be 8 groups of spray boxes in the first space, and each group of spray boxes can be equipped with 9 ultrasonic atomizing nozzles (i.e., there are a total of 72 ultrasonic atomizing nozzles in the first space). A water distributor corresponding to each group of spray boxes can also be provided between the raw material supply unit 104 and the aerosol generation unit 1011. The water distributor controls the water flow rate of the ultrasonic atomizing nozzles in each group of spray boxes (if it is necessary to increase the mist output of the ultrasonic atomizing nozzles, the water flow rate can be increased; if it is necessary to reduce the mist output of the ultrasonic atomizing nozzles, the water flow rate can be reduced). The flow control of each ultrasonic atomizing nozzle can be considered from two aspects: first, controlling the number of nozzle groups that work simultaneously, with each group of nozzles in the spray box working independently; and second, controlling the water flow rate of the nozzles.

[0101] In one exemplary embodiment, such as Figure 3 As shown, at the connection between the light-transmitting pipe 102 and the first space, there is an array of small air extraction holes 1021; on the side of the light-transmitting pipe 102 away from the first space, there is an array of small air blowing holes 1022.

[0102] The first exhaust assembly is used to extract gas from the light transmission pipe 102 through the exhaust hole array 1021. The air compressor 103 is used to blow gas into the light transmission pipe 102 through the blowing hole array 1022.

[0103] For example, at the connection between the light-transmitting duct 102 and the first space, an array of small suction holes 1021 (such as a four-ring array of small holes) is provided. The first exhaust assembly can extract gas from the light-transmitting duct 102 through the array of small suction holes 1021, and the gas is discharged from the main cabin after passing through the array of small suction holes 1021 and the first exhaust assembly in sequence. On the side of the light-transmitting duct 102 away from the first space, an array of small blowing holes 1022 (such as a ring of small holes) is provided. The air compressor 103 can blow gas into the light-transmitting duct 102 through the array of small blowing holes 1022, and the gas enters the light-transmitting duct 102 after passing through the air supply pipe of the air compressor 103 and the array of small blowing holes 1022 in sequence.

[0104] In one specific implementation of this embodiment, such as Figure 3 As shown, the light-transmitting pipe 102 can be a cylinder. One end of the light-transmitting pipe 102 is connected to the first space, and the other end is a light-transmitting window. To prevent aerosol particles from escaping from the light-transmitting pipe 102, a blowing / suction airflow barrier (such as an air curtain) is provided inside the light-transmitting pipe 102. Specifically, a four-ring array of small holes (i.e., an air extraction hole array 1021) is opened at the connection between the cylindrical light-transmitting pipe 102 and the first space. The holes in this four-ring array are essentially inner-ring holes. Near the four-ring array of small holes, a ring of approximately 100 small holes with a diameter of 3 mm is opened (i.e., an air blowing hole array 1022). This ring of small holes is closer to the light-transmitting window than the four-ring array of small holes, and this ring of small holes is not within the first space; it is essentially an outer-ring array of small holes. To maintain a slightly lower air pressure inside the main cabin 101 than outside, the first exhaust assembly uses a centrifugal fan to draw gas from the light-transmitting duct 102 through inner ring orifices, thus creating an airflow within the duct. The outer ring orifices direct the airflow towards the center of the light-transmitting duct 102 and extend to the inner ring orifices. By simultaneously drawing air through the outer and inner ring orifices, a circulating flow resembling an "air wall" (i.e., an air curtain or similar blowing / suction airflow barrier) is formed within the light-transmitting duct 102 to prevent aerosols from escaping outside. To effectively prevent aerosol leakage, the airflow pressure of the air curtain needs to be greater than the atmospheric pressure inside the cabin, and the ratio of extraction to delivery needs to be determined based on actual operating conditions. Typically, the extraction volume should be at least 10% greater than the delivery volume, but the optimal ratio depends on the concentration of aerosol particles inside the cabin; therefore, it needs to be calibrated through experimental testing in actual engineering design. In this embodiment, the air extraction volume of the first exhaust component can be set to twice the air supply volume of the air compressor 103. This ratio has been tested and proven to effectively prevent aerosols from escaping from the light-transmitting pipe 102 within the expected aerosol concentration range.

[0105] In another specific implementation of this embodiment, the selection logic for the air compressor 103, the first exhaust assembly, and the second exhaust assembly 1014 can be as follows: First, a plurality of oblique blowing holes with a diameter of 3mm (i.e., an air blowing hole array 1022) are provided on the side of the light-transmitting pipe 102 away from the first space. 100 oblique blowing holes are set on one side, and the airflow velocity V of the holes is taken as 12m / s to retain sufficient redundancy. The air blowing volume of a single oblique blowing hole is calculated to be Q=V*S=12*3.14*(0.003 / 2). 2 =0.00008478m 3 If the flow rate is approximately 5.0868 L / min, then the flow rate of the single-sided inclined blowing is Q1 = 100 * Q = 100 * 5.0868 = 508.68 L / min, and the flow rate of the two-sided inclined blowing is Q2 = 2 * Q1 = 2 * 508.68 = 1017.36 L / min = 1.01736 m³ / min. 3 / min. Secondly, the aerosol generation unit 1011 inside the chamber is equipped with a total of 72 nozzles, each with a flow rate of 114 L / min. When operating at full load, the total flow rate of the nozzles can reach Q3=114*72=8208L / min=8.208m³ / min (actually, intermittent pulse operation is adopted, but the selection is based on the maximum instantaneous flow rate). Furthermore, based on the above calculations, the air blowing through the window is approximately 1m³ / min, and the air blowing through the chamber nozzles is approximately 8.2m³ / min. It is recommended to use a DC centrifugal fan for ventilation. The first ventilation component can be a DI133B centrifugal fan, and the second ventilation component 1014 can be a DI1175B centrifugal fan. Both can have their exhaust volume changed by adjusting the speed to adapt to the dynamic requirements of air curtain formation and aerosol concentration dilution inside the chamber. The first ventilation component and the second ventilation component 1014 can also use the same ventilation fan. Furthermore, the total air consumption is approximately 9.2 m³ / min when the flow rates of the two oblique blowers and the total flow rates of the nozzles are added together. Considering continuous operation for 8 hours / day and a usage factor of 1.2, the required air volume is approximately 9.2 * 8 * 60 * 1.2 = 5299.2 m³. The theoretical discharge capacity of the air compressor is 9.2 * 1.2 = 11.04 m³ / min. Therefore, a screw air compressor can be selected for air compressor 103.

[0106] In some embodiments, this application provides an atmospheric aerosol simulation control method using the above-described atmospheric aerosol simulation device. This method can be applied to a terminal, a server, or a system including both a terminal and a server, and is implemented through interaction between the terminal and the server. The terminal can be, but is not limited to, various personal computers, laptops, smartphones, tablets, and portable wearable devices. Portable wearable devices can be smartwatches, smart bracelets, head-mounted devices, etc. Head-mounted devices can be virtual reality (VR) devices, augmented reality (AR) devices, smart glasses, etc. The server can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing cloud computing services.

[0107] In related technologies, aerosol simulation devices are widely used in atmospheric environment simulation, optoelectronic system performance testing, and visibility measurement instrument calibration. To reproduce low-visibility environments with specific extinction characteristics under laboratory conditions, researchers have designed various aerosol simulation systems. For example, these systems use ultrasonic atomizers or high-pressure nozzles to generate water mist aerosols, and adjust the mist particle concentration to achieve graded simulations of different visibility levels. Some systems also integrate environmental parameter control functions, allowing for simultaneous control of parameters such as temperature, humidity, and air pressure within the chamber.

[0108] However, existing aerosol simulation devices still have the following technical problems in practical applications:

[0109] On the one hand, the precision and stability of environmental control are insufficient. Aerosol simulation requires the formation of aerosol distribution with good spatial uniformity within the chamber; however, existing systems still lack precision and stability in aerosol concentration control, making it difficult to achieve continuous and stable quantitative control over a wide range. Aerosols are prone to localized accumulation within the chamber, leading to uneven concentration distribution and affecting the realism and repeatability of the simulated environment. Simultaneously, temperature and humidity changes during aerosol generation can cause condensation; improper condensation management can further disrupt the stability of the chamber environment.

[0110] On the other hand, optical measurements are severely affected by interference. Aerosol simulation chambers are typically equipped with light-transmitting windows for optical transmittance measurements, but aerosol particles easily deposit on the window surface or accumulate in the vicinity of the window, contaminating the light-transmitting window and severely interfering with the accuracy and stability of optical measurements. This window contamination problem is particularly prominent in high-concentration aerosol environments. Furthermore, the leakage of aerosol particles from inside the chamber not only contaminates the experimental environment but also affects the precise control of aerosol concentration within the chamber, further interfering with the accuracy of optical measurements.

[0111] In this regard, in one exemplary embodiment, such as Figure 4 As shown in the embodiments of this application, the atmospheric aerosol simulation control method using the above-described atmospheric aerosol simulation device can be applied to a server and may include the following steps:

[0112] Step S401: In response to the start signal for the air compressor and the first exhaust assembly, start the air compressor and the first exhaust assembly.

[0113] For example, after the device is powered on, the system starts up. The control unit first activates the aerosol overflow prevention unit, that is, at the same time, it turns on the air supply switch of the air compressor in the atmospheric aerosol simulation device and starts the first exhaust component in the atmospheric aerosol simulation device. This causes the air compressor to blow air into the pipe through the air blowing hole array on the light-transmitting pipe, while the first exhaust component draws air from the pipe through the exhaust hole array 1021, thereby forming a blowing and suction airflow barrier (i.e., air curtain / air curtain) in the light-transmitting pipe.

[0114] In step S402, with the air compressor and the first exhaust assembly operating simultaneously to form a blowing-suction airflow barrier within the light-transmitting duct, the aerosol generating unit is activated in response to an activation signal for the aerosol generating unit, and the second exhaust assembly is activated in response to an activation signal for the second exhaust assembly; the aerosol generating unit is used to spray aerosols within the first space; the second exhaust assembly is used to exhaust the aerosols within the first space from the main cabin.

[0115] For example, when the air compressor and the first exhaust assembly are operating simultaneously to form a blowing and suction airflow barrier in the light-transmitting duct, after the air curtain is working stably, in response to the start signal of the aerosol generation unit in the atmospheric aerosol simulation device, the aerosol generation unit is started. The started aerosol generation unit sprays aerosol into the first space at pulse intervals (such as by PWM control). In response to the start signal of the second exhaust assembly, the second exhaust assembly is started. The started second exhaust assembly draws air from the first space through the exhaust duct and the micro-pressure exhaust ports provided on the top surface and side walls of the first space to initially dilute the aerosol and cooperate with subsequent concentration adjustment.

[0116] Step S403: Obtain the aerosol permeability in the first space.

[0117] For example, the control unit receives data collected in real time by a status detection unit (such as a spectrometer or a multi-channel fiber optic detector). The status detection unit includes a light source emitting component and a signal receiving component. The light source emitting component emits multiple light signals through a light-transmitting channel to multiple locations within the first space (such as the center of the light-transmitting window and four points above, below, left, and right of the center, and four points above, below, left, and right of the light-transmitting window). The signal receiving component receives the corresponding light signals after they have passed through the first space and calculates the aerosol transmittance at each location. The control unit can acquire these transmittance values ​​at a frequency of once every 10 seconds.

[0118] Step S404: Based on the aerosol permeability in the first space, control and adjust the working state of any one or more of the air compressor, aerosol generation unit, first exhaust assembly, and second exhaust assembly.

[0119] For example, if the aerosol transmittance at a certain location is low (e.g., below a set transmittance threshold), the control unit, via PLC, increases the spray flow rate of the nozzles in the corresponding area, extends the spray time of the nozzles in the corresponding area, and / or increases the number of working nozzle groups in the corresponding area (e.g., opening more nozzle groups) to increase the local aerosol generation; simultaneously, the extraction volume of the second exhaust assembly in the corresponding area can be reduced. If the aerosol transmittance at a certain location is low (e.g., above a set transmittance threshold), the control unit increases the extraction speed of the second exhaust assembly corresponding to that location, reduces the spray flow rate of the nozzles in the corresponding area, and / or reduces the number of working nozzles in the corresponding area. For the air curtain at the light-transmitting duct, the control unit can fine-tune the air supply volume of the air compressor and / or the extraction volume of the first exhaust assembly according to the transmittance change trend to maintain the integrity of the air curtain. The above adjustment process is repeated until the aerosol transmittance at multiple locations within the first space reaches a quasi-steady-state equilibrium (e.g., the deviation between the average value and standard deviation of the transmittance at each location over one minute meets a preset threshold). After the experiment is completed, the control unit can control the second ventilation component to continue working to extract excess aerosol from the chamber, and finally turn off the power and retract the equipment.

[0120] The atmospheric aerosol simulation control method provided in this embodiment first relies on the structural design of the device to achieve multiple fundamental safeguards: a condensate recovery unit with ramps and grooves at the bottom of the inner chamber collects condensate, while a soft-air plate at the top prevents condensate dripping, effectively solving the problem of condensate interfering with environmental control accuracy; the use of an inner and outer chamber structure (the inner chamber being the aerosol generation and control area, and the outer chamber being a protective cover and pipeline interface layer) facilitates experimental operation and subsequent maintenance; the introduction of general-purpose radiation atmospheric transmission simulation software linked with the hardware simulation chamber provides scientific input conditions for the experiment, improving the repeatability and realism of the simulation. Based on the above structure, this control method further addresses the severe interference in optical measurements by simultaneously activating the air compressor and the first exhaust assembly in response to the start signal, forming a blowing-suction airflow barrier (i.e., an air curtain / air screen) within the light-transmitting duct, thereby preventing aerosol particles from depositing on the surface of the light-transmitting window and leaking outwards from the chamber, avoiding window contamination and uncontrolled aerosol concentration; simultaneously, the second exhaust assembly, in conjunction with the micro-pressure exhaust vents on the top and side walls of the chamber, dilutes the aerosol concentration, further ensuring the long-term stability of the experimental optical path. To achieve precise control of aerosol concentration, this method activates the aerosol generation unit (using multi-channel nozzles, solenoid valve PWM control, and a gentle airflow system) after the air curtain has stabilized, injecting aerosols in a pulsed manner while simultaneously activating the second exhaust assembly for initial dilution. Then, the aerosol transmittance at multiple locations within the first space is acquired in real time. Based on whether the transmittance is too low or too high, the operating states of the air compressor, aerosol generation unit, first exhaust assembly, and second exhaust assembly are dynamically adjusted—when the transmittance is low, the injection flow rate of the corresponding nozzles is increased, the injection time is extended, or the number of nozzle groups is increased while the extraction volume is reduced; when the transmittance is high, the extraction speed is increased, the injection flow rate is reduced, or the number of working nozzles is reduced. Simultaneously, the air supply and extraction volumes of the air curtain are fine-tuned according to the transmittance trend to maintain the integrity of the air curtain. By repeating this closed-loop feedback adjustment until the transmittance at each location reaches a quasi-steady-state equilibrium, this method achieves precise and dynamic control of the aerosol generation rate and concentration, ensuring a uniform and stable aerosol concentration distribution within the chamber. After the experiment is completed, the method controls the second ventilation component to continue working to extract excess aerosols from the cabin and avoid residual pollution.

[0121] Based on the above, the atmospheric aerosol simulation control method provided in this embodiment makes the entire device highly engineered, with excellent performance and reliable use. It supports 24 / 7 uninterrupted operation, and the monitoring and analysis software can easily read and store data. The equipment is easy to operate, use, and maintain, and after-sales service is timely and effective. Thus, a highly integrated and intelligent experimental platform is created, which significantly improves the accuracy of environmental control, the reliability of optical measurement, experimental efficiency, and system scalability.

[0122] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages in other steps. It is understood that the steps in different embodiments can be freely combined as needed, and all non-contradictory solutions formed by such combinations are within the scope of protection of this application.

[0123] Based on the same inventive concept, this application also provides an aerosol control system for implementing the aerosol control method using an atmospheric aerosol simulator as described above. The solution provided by this system is similar to the implementation described in the above method. Therefore, the specific limitations of one or more embodiments of the aerosol control system using an atmospheric aerosol simulator provided below can be found in the limitations of the aerosol control method using an atmospheric aerosol simulator described above, and will not be repeated here.

[0124] In one exemplary embodiment, such as Figure 5 As shown, an aerosol control system using an atmospheric aerosol simulation device is provided. The system includes the following modules:

[0125] The first start module 501 is used to start the air compressor and the first exhaust assembly in response to a start signal for the air compressor and the first exhaust assembly.

[0126] The second start-up module 502 is used to start the aerosol generating unit in response to a start signal for the aerosol generating unit and to start the second exhaust assembly in response to a start signal for the second exhaust assembly when the air compressor and the first exhaust assembly are operating simultaneously to form a blowing and suction airflow barrier in the light-transmitting duct; the aerosol generating unit is used to spray aerosols in the first space; the second exhaust assembly is used to exhaust the aerosols in the first space from the main body.

[0127] The acquisition module 503 is used to acquire the aerosol permeability in the first space.

[0128] The control and adjustment module 504 is used to control and adjust the working state of any one or more of the air compressor, aerosol generation unit, first exhaust assembly and second exhaust assembly according to the aerosol permeability in the first space.

[0129] The various modules in the aerosol control system of the aforementioned atmospheric aerosol simulation device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in the processor of a computer device in hardware form or independent of it, or stored in the memory of a computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0130] In one exemplary embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 6 As shown, the computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The input / output interface is used for exchanging information between the processor and external devices. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, Near Field Communication (NFC), or other technologies. When the computer program is executed by the processor, it implements an aerosol control method using an atmospheric aerosol simulation device. The display unit is used to form a visually visible image and can be a display screen, projection device, or virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0131] Those skilled in the art will understand that Figure 6 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0132] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.

[0133] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the steps in the above method embodiments.

[0134] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0135] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0136] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0137] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0138] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. An atmospheric aerosol simulation device, characterized in that, The device includes: a main body, light-transmitting ducts located at both ends of the main body, an air compressor and a first exhaust assembly connected to the light-transmitting ducts, a raw material supply unit, and a control unit; the main body includes a first space and a second space arranged around the first space; wherein... The first space is equipped with an aerosol generation unit; The second space is provided with exhaust ducts that are respectively connected to the first space and the second exhaust assembly; When the air compressor and the first exhaust assembly operate simultaneously, a blowing and suction airflow barrier is formed within the light-transmitting duct; the raw material supply unit is used to provide the aerosol generating unit with raw materials for generating aerosols; the second exhaust assembly is used to discharge the aerosols in the first space from the main chamber; the control unit is used to control and adjust the operating state of any one or more of the aerosol generating unit, the air compressor, the first exhaust assembly, and the second exhaust assembly according to the aerosol permeability in the first space.

2. The apparatus according to claim 1, characterized in that, The device also includes a gentle airflow guide cavity; wherein... The soft wind guide cavity is located inside the first space; The top, bottom, and sides of the soft wind guide cavity are all composed of soft wind guide plates. The two ends of the soft wind guide cavity are connected to the light-transmitting pipes at both ends of the main cabin and are not equipped with soft wind guide plates. Each soft wind guide plate is provided with multiple through air holes. The air holes are used to disperse the aerosol generated by the aerosol generation unit into multiple airflows.

3. The apparatus according to claim 2, characterized in that, The device also includes a condensate recovery unit; The soft wind guide plate on the top surface of the soft wind guide cavity includes two intersecting inclined planes; the line of intersection of the two inclined planes extends from one end of the first space to the other end of the first space; each inclined plane is inclined from the line of intersection toward the corresponding side wall of the first space. Between each pair of adjacent rows of air holes on the inclined plane, there is a drainage groove extending along the inclined direction of the inclined plane; the drainage groove is used to guide the condensate water to the soft wind guide plates on each side of the soft wind guide cavity; The condensate recovery unit is located at the bottom of the first space; the condensate recovery unit is used to recover the condensate flowing down the soft wind guide plates along each side of the soft wind guide cavity.

4. The apparatus according to claim 3, characterized in that, The condensate recovery unit includes a ramp, a groove, and a condensate recovery assembly; wherein... The ramp is used to guide condensate into the groove; the groove is connected to the condensate recovery assembly; the condensate recovery assembly is used to recover the condensate flowing into the groove.

5. The apparatus according to claim 1, characterized in that, The device further includes a status detection unit; the aerosol generation unit includes multiple nozzles; wherein... The status detection unit includes a light source emitting component and a signal receiving component; the light source emitting component is located on the outer side of one end of the main cabin, and the signal receiving component is located on the outer side of the other end of the main cabin; the light source emitting component is used to emit multiple optical signals into the first space through the light-transmitting pipe; the signal receiving component is used to receive the multiple optical signals passing through the first space, and determine the aerosol transmittance at multiple locations in the first space based on the multiple optical signals passing through the first space. The control unit is used to control and adjust the start / stop status, injection flow rate and / or injection sequence of each nozzle according to the aerosol permeability at the plurality of locations.

6. The apparatus according to claim 1, characterized in that, An array of small suction holes is provided at the connection point between the light-transmitting pipe and the first space; an array of small blowing holes is provided on the side of the light-transmitting pipe away from the first space; wherein... The first exhaust assembly is used to extract gas from the light-transmitting pipe through the array of exhaust holes; The air compressor is used to blow gas into the light-transmitting pipe through the array of air-blowing holes.

7. An aerosol control method using the atmospheric aerosol simulation device according to any one of claims 1 to 6, characterized in that, The method includes: In response to a start signal for the air compressor and the first exhaust assembly, the air compressor and the first exhaust assembly are started; When the air compressor and the first exhaust assembly are operating simultaneously to form a blowing-suction airflow barrier within the light-transmitting duct, the aerosol generating unit is activated in response to an activation signal for the aerosol generating unit, and the second exhaust assembly is activated in response to an activation signal for the second exhaust assembly; the aerosol generating unit is used to spray aerosols within the first space; the second exhaust assembly is used to exhaust the aerosols within the first space from the main body. Obtain the aerosol permeability within the first space; Based on the aerosol permeability in the first space, control and adjust the working state of any one or more of the aerosol generating unit, the air compressor, the first exhaust assembly, and the second exhaust assembly.

8. An aerosol control system using the atmospheric aerosol simulation device according to any one of claims 1 to 6, characterized in that, The system includes: A first start-up module is configured to start the air compressor and the first exhaust assembly in response to a start-up signal for the air compressor and the first exhaust assembly. The second start-up module is used to, in response to a start-up signal for the aerosol generating unit, activate the aerosol generating unit and the second exhaust assembly, in response to a start-up signal for the second exhaust assembly, when the air compressor and the first exhaust assembly are operating simultaneously to form a blowing-suction airflow barrier within the light-transmitting duct; the aerosol generating unit is used to spray aerosols within the first space; the second exhaust assembly is used to discharge the aerosols within the first space from the main body. The acquisition module is used to acquire the aerosol permeability in the first space; The control and adjustment module is used to control and adjust the working state of any one or more of the aerosol generating unit, the air compressor, the first exhaust assembly, and the second exhaust assembly according to the aerosol permeability in the first space.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method of claim 7.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the method of claim 7.

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