Control method of air purification equipment, air purification equipment and storage medium

Abstract

The invention discloses a control method of air purification equipment, the air purification equipment and a storage medium, and relates to the technical field of air conditioning, and the control method of the air purification equipment comprises the steps that tail gas data detected by an air quality detection sensor is obtained; generating a tail gas analysis result according to the tail gas data, wherein the tail gas analysis result comprises pollutant components and pollutant concentration; and control parameters of a fan in the air purification equipment are determined according to the tail gas analysis result, and the fan is controlled to work according to the control parameters so as to adjust the air speed of the fan. According to the method, the tail gas data are analyzed, the corresponding fan control parameters are determined, the optimal wind speeds corresponding to different tail gas data are determined, the fan control parameters are adjusted, the tail gas data are filtered in a targeted mode, and the filtering effect of the tail gas data is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioning, in particular to a control method of an air purification device, the air purification device and a storage medium. BACKGROUND

[0002] In the air purification scene, pollutants have the characteristics of diversity and complexity, so air purifiers are required to have multiple purification technologies. For example, HEPA (High Efficiency Particulate Air filter) filters can effectively remove PM2.5 and other particulate matter, while activated carbon filters are suitable for removing gaseous pollutants such as formaldehyde.

[0003] Because the composition of pollutants in the air changes at different times, places or process flows, the current air purification device uses the same purification technology to filter the air with different pollutant compositions, resulting in the failure to filter out some pollutants, such as particulate matter content exceeding the standard, ultimately leading to poor air purification effect of the air purification device. SUMMARY

[0004] The main purpose of the present application is to provide a control method of an air purification device, the air purification device and a storage medium, aiming to solve the technical problem that the air purification device uses the same purification technology to filter the air with different pollutant compositions, resulting in the failure to filter out some pollutants, ultimately leading to poor air purification effect of the air purification device.

[0005] To achieve the above-mentioned purpose, the present application provides a control method of an air purification device, which comprises:

[0006] obtaining tail gas data detected by an air quality detection sensor;

[0007] generating a tail gas analysis result according to the tail gas data, the tail gas analysis result comprising pollutant components and pollutant concentrations;

[0008] determining control parameters of a fan in the air purification device according to the tail gas analysis result, and controlling the fan to work according to the control parameters to adjust the wind speed of the fan.

[0009] In an embodiment, the step of determining the control parameters of the fan in the air purification device according to the tail gas analysis result comprises:

[0010] determining the pollutant concentration corresponding to each pollutant component according to the tail gas analysis result;

[0011] determining the concentration difference between the pollutant concentration of each pollutant component and the target concentration threshold;

[0012] determining a control parameter of the fan according to the concentration difference of each of the pollutant components.

[0013] In an embodiment, the air purification device is provided with a filter core group comprising at least two filter cores, and the step of determining the control parameter of the fan according to the concentration difference of each of the pollutant components comprises:

[0014] obtaining the filtration efficiency of each filter core on different pollutant components;

[0015] determining the control parameter of the fan according to the concentration difference of each of the pollutant components and the filtration efficiency of each filter core on the pollutant components.

[0016] In an embodiment, the step of determining the control parameter of the fan according to the concentration difference of each of the pollutant components and the filtration efficiency of each filter core on the pollutant components comprises:

[0017] when the pollutant components comprise particulate matter, determining the concentration difference between the concentration of the particulate matter and a target concentration threshold;

[0018] determining the control parameter of the fan according to the concentration difference of the particulate matter and the filtration efficiency of each filter core on the particulate matter;

[0019] when the pollutant components comprise volatile organic compounds, determining the concentration difference between the concentration of the volatile organic compounds and a target concentration threshold;

[0020] determining the control parameter of the fan according to the concentration difference of the volatile organic compounds and the filtration efficiency of each filter core on the volatile organic compounds.

[0021] In an embodiment, the air outlet of the air purification device is provided with a gas detection sensor, and after the step of determining the control parameter of the fan of the air purification device according to the tail gas analysis result and controlling the fan to work according to the control parameter, the method further comprises:

[0022] obtaining filtered gas data detected by the gas detection sensor;

[0023] generating a filtration analysis result according to the filtered gas data;

[0024] adjusting the control parameter of the fan according to the difference between the pollutant concentration corresponding to each pollutant component in the filtration analysis result and a target concentration threshold.

[0025] In an embodiment, before the step of obtaining the tail gas data detected by the air quality detection sensor, the method further comprises:

[0026] In the laser processing, material information to be laser processed is acquired;

[0027] According to the material information, a historical control parameter of the fan is acquired;

[0028] According to the historical control parameter, the fan of the air purification device is controlled to work.

[0029] In an embodiment, the method further comprises:

[0030] A user setting interface is displayed, the user setting interface comprising a control parameter setting area and a purification effect display area;

[0031] In response to a selection operation on the control parameter setting area, a control parameter of the fan input by a user is acquired;

[0032] In response to a trigger operation on the purification effect display area, the tail gas analysis result and / or the filtration analysis result of the tail gas are displayed in the purification effect display area.

[0033] In addition, to achieve the above object, the present application further provides an air purification device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method of the air purification device as described above.

[0034] The air purification device is provided with a fan and a filter core group, the filter core group comprising at least one filter core, the air purification device being provided with an air quality detection sensor at an air inlet and a gas detection sensor at an air outlet.

[0035] In addition, to achieve the above object, the present application further provides a storage medium, which is a computer readable storage medium, the storage medium storing a computer program, the computer program being executed by a processor to implement the steps of the control method of the air purification device as described above.

[0036] In addition, to achieve the above object, the present application further provides a computer program product, comprising a computer program, the computer program being executed by a processor to implement the steps of the control method of the air purification device as described above.

[0037] The one or more technical solutions provided by the present application have at least the following technical effects:

[0038] Acquire exhaust data detected by the air quality detection sensor; generate exhaust analysis results according to the exhaust data; determine the control parameters of the fan in the air purification equipment according to the exhaust analysis results, and control the fan to work according to the control parameters. By analyzing the exhaust data and determining the corresponding fan control parameters, the optimal fan speed corresponding to different exhaust data is determined, the control parameters of the fan are adjusted, and the exhaust data is filtered accordingly, thereby improving the filtering effect of the exhaust data. BRIEF DESCRIPTION OF DRAWINGS

[0039] The drawings incorporated into the specification and forming a part thereof illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0041] Figure 1 A flowchart is provided for the control method of the air purification equipment of the present application embodiment one;

[0042] Figure 2 A structural diagram of the filter core group of the air purification equipment in the control method of the air purification equipment of the present application;

[0043] Figure 3 A flowchart is provided for the control method of the air purification equipment of the present application embodiment two;

[0044] Figure 4 A brief flowchart of the control method of the air purification equipment of the present application;

[0045] Figure 5 A flowchart is provided for the control method of the air purification equipment of the present application embodiment three;

[0046] Figure 6 A flowchart is provided for the control method of the air purification equipment of the present application embodiment four;

[0047] Figure 7 A device structure diagram of the hardware running environment involved in the control method of the air purification equipment in the embodiments of the present application.

[0048] The purpose implementation, functional characteristics and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0049] It should be understood that the specific embodiments described herein are merely intended to explain the technical solutions of the present application, and are not intended to limit the present application.

[0050] In order to better understand the technical solutions of the present application, the following will be described in detail in combination with the drawings of the specification and specific embodiments.

[0051] The main solution of the embodiment of the present application is: obtaining tail gas data detected by an air quality detection sensor; generating a tail gas analysis result according to the tail gas data; determining a control parameter of a fan in the air purification equipment according to the tail gas analysis result, and controlling the fan to work according to the control parameter.

[0052] In the present embodiment, for the sake of description, the following is described with the air purification equipment as the execution subject.

[0053] The air purification equipment uses the same purification technology to filter air with different pollutant components, resulting in that some pollutants are not filtered out, and finally leading to poor air purification effect of the air purification equipment.

[0054] The present application provides a solution, which analyzes the tail gas data and determines the corresponding fan control parameter, determines the optimal wind speed corresponding to different tail gas data, adjusts the control parameter of the fan, and filters the tail gas data in a targeted manner to improve the filtering effect of the tail gas data.

[0055] It should be noted that the execution subject of the present embodiment can be a computing service device with data processing, network communication and program running functions, such as a tablet computer, a personal computer, a mobile phone, etc., or an electronic device, an air purification equipment, etc. capable of realizing the above functions. The following takes the air purification equipment as an example to describe the present embodiment and each of the following embodiments.

[0056] Based on this, the present embodiment of the present application provides a control method of an air purification equipment, which refers to Figure 1 , Figure 1 The present embodiment is a flowchart of the control method of the air purification equipment of the first embodiment of the present application.

[0057] In the present embodiment, the control method of the air purification equipment comprises steps S10-S30:

[0058] Step S10, obtaining tail gas data detected by an air quality detection sensor.

[0059] Optionally, it can also be applied to indoor air purification scenes and the like. Laser processing includes laser cutting, laser welding, laser marking, laser engraving and laser drilling, etc. Laser processing is suitable for a variety of materials, including but not limited to metal materials, plastic materials, ceramic materials, wood, paper, glass, semiconductor materials, etc.

[0060] Laser processing heats materials with a high-intensity laser beam, causing them to melt or vaporize, which can release gases, particles, and fumes, especially when processing organic materials or composites. These volatile substances and fine particles become pollutants, i.e., tail gas data.

[0061] During laser processing, chemical reactions occur between the laser beam and the material, releasing harmful gases or chemicals. For example, during metal laser cutting, gases containing oxides are produced, while during plastic cutting, toxic chlorine gas or other harmful gases are produced.

[0062] Different materials produce different pollutants during laser processing. For example, plastics and rubbers release harmful volatile organic compounds (VOCs) during processing, while metals release metal vapors and fine metal particles during processing.

[0063] In addition, factors such as processing speed, laser power, focal position, etc. also affect the amount of pollutants generated. High-power lasers generate more heat, causing more material to vaporize and gas to be released.

[0064] Due to different laser processing techniques, materials processed, and other factors, the composition and concentration of pollutants in the generated tail gas data are not the same. Therefore, it is necessary to detect real-time tail gas data generated during laser processing. Before purification, detect the content of volatile organic compounds (TVOC), particulate matter (PM2.5, PM10), formaldehyde and toluene concentrations, etc. in the tail gas data.

[0065] Optionally, the real-time tail gas data generated during laser processing is detected by an air quality detection sensor. The air quality detection sensor includes an electrochemical sensor, an infrared sensor, a photoionization detection sensor, etc. The air quality detection sensor is arranged at the air inlet of the air purification device.

[0066] It should be noted that the air inlet of the air purification device is provided with an air quality detection sensor, and the air purification device is provided with a filter core group. As shown in Figure 2 The filter core group includes a plurality of filter cores, including: a primary filter core, a medium filter core, an activated carbon filter core, a high-density activated carbon filter core, and a high-efficiency filter core. Different filter cores have different filtering pollutants and filtering efficiencies. For example, the filtering efficiency of PM0.3-0.5 of the primary filter core is 90%; the filtering efficiency of PM0.3 of the medium filter core is 95%; the iodine adsorption value of the activated carbon layer is greater than 1600mg / g, and the carbon tetrachloride adsorption value is greater than 100m 2 / g; the VOC removal rate of the high-density activated carbon layer is greater than 90%; the PM0.3 filtration efficiency of the high-efficiency filter element is 99.95%.

[0067] Alternatively, the air purification equipment can be a smoke purifier, an indoor air purifier, or other similar devices.

[0068] Step S20: Generate exhaust gas analysis results based on the exhaust gas data. The exhaust gas analysis results include pollutant components and pollutant concentrations.

[0069] It should be noted that exhaust gas data detected by different air quality sensors are integrated and preprocessed to generate exhaust gas analysis results. Preprocessing includes data cleaning, etc.

[0070] Optionally, the exhaust gas analysis results include pollutant components and their corresponding pollutant concentrations. The pollutant components include volatile organic compounds (VOCs), and the pollutant concentration is the VOC content; the pollutant components include particulate matter, such as PM2.5 and PM10, and the pollutant concentration includes the particulate matter content; the pollutant components include formaldehyde or toluene, and the pollutant concentration is the formaldehyde or toluene concentration.

[0071] Step S30: Determine the control parameters of the fan in the air purification equipment based on the exhaust gas analysis results, and control the fan to work according to the control parameters to adjust the fan speed.

[0072] Optionally, the control parameters of the fan in the air purification equipment include PWM (Pulse Width Modulation) duty cycle, etc., used to adjust the fan speed. The PWM duty cycle is the ratio of the high-level time to the total cycle time in the fan control signal. By adjusting the duty cycle, the fan speed and air volume can be controlled; a higher duty cycle results in a faster fan speed, and a lower duty cycle results in a slower fan speed.

[0073] Because the optimal airflow speed required for filtering particulate matter and VOCs is different for different filter elements, when the sensor detects the components of the exhaust gas entering the purifier, it will adjust the PWM duty cycle of the fan to achieve the best filtration effect.

[0074] The impact of fan speed on exhaust gas filtration efficiency is mainly reflected in the following aspects:

[0075] The contact time between the filter media and the pollutants is crucial. At higher wind speeds, the contact time between pollutants and the filter media decreases, potentially leading to some pollutants not being effectively captured and thus reducing filtration efficiency. At lower wind speeds, the contact time increases, which helps improve filtration efficiency, but may also cause the filter media to saturate more quickly, requiring more frequent replacement or cleaning.

[0076] The penetration rate of the filter media is a factor to consider. Higher air velocities can increase the likelihood of pollutants penetrating the filter media, especially when the filter media has large pores or an uneven pore distribution. Lower air velocities help reduce the penetration rate because pollutants have a greater chance of being captured by the filter media.

[0077] The uniformity of airflow, especially the uniformity of wind speed, is crucial for filtration effectiveness. Uneven wind speed can lead to poor filtration in some areas while over-filtration occurs in others.

[0078] The physical properties of the filter media, such as pore size, porosity, thickness, and material type, all affect the filtration effect. Different air velocities may have varying impacts on these properties, thus affecting filtration efficiency.

[0079] The physical properties of pollutants, such as particle size, shape, density, and viscosity, also affect filtration effectiveness. For example, larger particles may be more easily captured at lower wind speeds, while smaller particles may require higher wind speeds to be effectively filtered.

[0080] In some filter media, such as electrostatic filters, airflow velocity affects the generation and maintenance of static electricity. Appropriate airflow velocity helps enhance the electrostatic effect and improve the ability to capture fine particles.

[0081] However, higher airflow speeds usually mean higher energy consumption and noise levels. When determining the control parameters for the fans in air purifiers, a balance needs to be found between filtration efficiency, energy consumption, and noise. The choice of fan, duct layout, and the installation method of the filter media all affect the impact of airflow speed on filtration effectiveness. Therefore, to achieve optimal filtration results, the airflow speed needs to be selected and adjusted appropriately based on the characteristics of the filter media and the nature of the pollutants. In some cases, it may be necessary to determine the optimal airflow speed setting through experiments or simulations.

[0082] Furthermore, the optimal air velocity required for filtering particulate matter and volatile organic compounds differs, primarily due to their differences in physical properties and filtration mechanisms:

[0083] In particulate filtration, particles in the airflow, due to inertia, may collide with and be captured by the filter media when the airflow direction changes. Higher wind speeds increase the chances of collision between particles and the filter media, thus improving filtration efficiency. Particles may be intercepted because their size exceeds the pore size of the filter media. Moderate wind speeds help improve interception efficiency, but excessively high wind speeds may cause particles to penetrate the filter media. For very small particles (such as nanoparticles), Brownian motion (the random motion of particles) plays a role in the capture process. Lower wind speeds help increase the contact opportunities between particles and the filter media.

[0084] In VOCs filtration, VOCs are primarily removed through physical or chemical adsorption on adsorbent materials such as activated carbon. Lower airflow velocities help increase the contact time between VOC molecules and the adsorbent material, improving adsorption efficiency. VOC molecules need to diffuse from the airflow to the material surface before being adsorbed. Lower airflow velocities help increase the diffusion time and opportunity for molecules. Some VOCs may be decomposed by catalysts on the filter media through chemical reactions. Appropriate airflow velocities ensure sufficient contact time for effective chemical reactions.

[0085] Therefore, to achieve optimal filtration results, it is necessary to rationally select and adjust the airflow velocity based on the type and characteristics of the pollutants, as well as the properties of the filter media. When designing a filtration system, it is usually necessary to determine the optimal airflow velocity for different pollutants through experiments or simulations.

[0086] Optionally, the pollutant components and concentrations from the exhaust gas data can be input into a predictive model to predict the control parameters of the corresponding fan, thereby improving filtration efficiency and system response speed. Optionally, the predictive model can predict the trend of exhaust gas data changes over a preset time period and adjust the air volume in advance to achieve a smoother and more effective filtration effect.

[0087] Optionally, the use of filter materials, i.e. filter elements, can be dynamically adjusted according to changes in exhaust gas data. For example, filter elements with different functions can be automatically replaced or adjusted to adapt to different pollutants. That is, different filter elements can be dynamically combined according to exhaust gas analysis results to achieve the best filtration effect.

[0088] Optionally, based on user preferences, such as targeted filtration of certain pollutants, and exhaust gas analysis results, the control parameters of the fan in the air purification equipment are determined, and the fan is controlled to operate according to the control parameters.

[0089] In this embodiment, exhaust gas data detected by an air quality sensor is acquired; exhaust gas analysis results are generated based on the exhaust gas data; control parameters of the fan in the air purification equipment are determined based on the exhaust gas analysis results, and the fan is controlled to operate according to the control parameters. By analyzing the exhaust gas data and determining the corresponding fan control parameters, the optimal wind speed corresponding to different exhaust gas data is determined, the fan control parameters are adjusted, and the exhaust gas data is filtered in a targeted manner to improve the filtration effect of the exhaust gas data.

[0090] Based on the first embodiment of this application, in the second embodiment of this application, the content that is the same as or similar to that in Embodiment 1 above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 3 After step S30, the following steps are also included:

[0091] Step S40: Obtain the filtered gas data detected by the gas detection sensor;

[0092] Step S50: Generate filtration analysis results based on the filtered gas data;

[0093] Step S60: Adjust the control parameters of the fan based on the difference between the pollutant concentration of each pollutant component and the target concentration threshold in the filtration analysis results.

[0094] It should be noted that the gas detection sensors are located at the air outlet of the air purification equipment, including electrochemical sensors, infrared sensors, photoionization detection sensors, etc., and are used to detect the filtered gas.

[0095] Optionally, when the difference between the pollutant concentration corresponding to each pollutant component in the filtration analysis results and the target concentration threshold is less than a preset first difference threshold and greater than a preset second difference threshold, the step of adjusting the control parameters of the fan is executed. The second difference threshold is less than the first difference threshold.

[0096] Optionally, when the difference between the pollutant concentration corresponding to each pollutant component in the filtration analysis results and the target concentration threshold is less than the second difference threshold, there is no need to adjust the control parameters of the fan, and the current control parameters of the fan continue to be maintained.

[0097] Optionally, when the difference between the concentration of a pollutant component and the target concentration threshold in the filtration analysis results exceeds a preset first difference threshold, the corresponding filter element of the air purification device is adjusted. For example, if the difference between the filtered particulate matter concentration and the target particulate matter concentration is large, the particulate matter filter element is replaced.

[0098] For example, such as Figure 4As shown, the sensor detects the composition of the exhaust gas and feeds it back to the MCU (Microcontroller Unit). The MCU adjusts the PWM duty cycle of the fan and thus the fan speed based on the exhaust gas composition. Afterward, the air purification equipment filters the exhaust gas. At this point, the composition of the filtered exhaust gas is detected and fed back to the MCU. The MCU then determines whether to adjust the fan's control parameters again, such as the fan's PWM duty cycle.

[0099] In one embodiment, a user settings interface is displayed, including a control parameter setting area and a purification effect display area. In response to a selection operation in the control parameter setting area, the control parameters of the fan input by the user are obtained. In response to a trigger operation in the purification effect display area, the exhaust gas analysis results and / or filtration analysis results are displayed in the purification effect display area, visually demonstrating the exhaust gas purification effect. Optionally, the user settings interface can be displayed on a terminal device or on an air purification device.

[0100] The selection and trigger operations include click, double-click, and long-press operations. Selection operations determine the control parameters of the fan chosen by the user, such as selecting automatic mode. Trigger operations display the analysis results before and after filtering.

[0101] In the technical solution of this embodiment, for example, during laser processing, the exhaust gas data may change. Therefore, it is necessary to evaluate the filtration effect, i.e., generate filtration analysis results, and adjust the fan control parameters in a timely manner based on the filtration analysis results to ensure the filtration effect of the exhaust gas. Alternatively, the fan control parameters determined based on the exhaust gas analysis results may not be the optimal wind speed, requiring fine-tuning of the wind speed to further improve the filtration effect of the exhaust gas.

[0102] Based on the first or second embodiment of this application, in the third embodiment of this application, the content that is the same as or similar to the above embodiments can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 5 Before step S10, the following are also included:

[0103] Step S70: During laser processing, obtain information about the material to be laser processed;

[0104] Step S80: Obtain the historical control parameters of the fan based on the material information;

[0105] Step S90: Control the fan of the air purification device to work according to the historical control parameters.

[0106] It should be noted that obtaining material information for laser processing can be done by obtaining material information input by the user, material information through image recognition, or material information determined based on the selected laser processing technology.

[0107] Because different materials are processed by lasers, the types of gases and the concentrations of contaminants produced may vary. To ensure a rapid response, the gases generated during laser processing are filtered.

[0108] Optionally, the air purifier first operates at a preset fan speed control setting, and then controls the fan to work according to the preset fan speed control setting. For example, the preset fan speed control setting is a medium fan speed control setting. For instance, as shown... Figure 4 As shown, the gear is preset according to the material information of laser processing, and the fan is controlled to operate according to the preset gear.

[0109] Optionally, obtain the historical control parameters of the fan corresponding to the historical exhaust gas data corresponding to the material information. Optionally, determine the numerical range of the historical exhaust gas data corresponding to the material information; obtain the historical control parameters of the fan associated with the numerical range.

[0110] Optionally, the mapping relationship between different material information and corresponding historical control parameters can be saved. Based on the mapping relationship, the historical control parameters of the fan corresponding to the material information can be determined to filter the exhaust gas in a timely manner and ensure a good exhaust gas filtration effect.

[0111] In the technical solution of this embodiment, before further adjusting the control parameters of the fan, historical control parameters are obtained and the fan is controlled to work first, which ensures the timeliness of exhaust gas filtration in the early stage of laser processing and avoids the situation where the filtration effect is poor in the early stage of laser processing due to the failure to determine the control parameters.

[0112] Based on any of the first to third embodiments of this application, in the fourth embodiment of this application, the content that is the same as or similar to that in Embodiment 1 above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 6 Step S30 includes:

[0113] Step S31: Determine the pollutant concentration corresponding to each pollutant component based on the exhaust gas analysis results;

[0114] Step S32: Determine the concentration difference between the pollutant concentration of each pollutant component and the target concentration threshold.

[0115] Step S33: Determine the control parameters of the fan based on the concentration difference of each pollutant component.

[0116] It should be noted that the exhaust gas analysis results include different pollutant components and the corresponding pollutant concentrations for each component. For example, the exhaust gas analysis results are: pollutant component a1, corresponding to pollutant concentration b1; pollutant component a2, corresponding to pollutant concentration b2; and pollutant component a3, corresponding to pollutant concentration b3.

[0117] The concentration difference between the pollutant concentration of each pollutant component and the target concentration threshold is determined. For example, the concentration difference of pollutant component a1 = b1 - c1, the concentration difference of pollutant component a2 = b2 - c2, and the concentration difference of pollutant component a3 = b3 - c3, where c1, c2, and c3 are the target concentration thresholds corresponding to the pollutant components. Optionally, the target concentration thresholds corresponding to different pollutant components may be the same or different.

[0118] It should be noted that air purification equipment is equipped with a filter assembly, which consists of at least two filters, such as... Figure 2 As shown, the filter assembly comprises multiple filter elements, including: a pre-filter, a medium-efficiency filter, an activated carbon filter, a high-density activated carbon filter, and a high-efficiency filter. Different filter elements have different filtration efficiencies and target pollutants. For example, the pre-filter has a PM0.3-0.5 filtration efficiency of 90%; the medium-efficiency filter has a PM0.3 filtration efficiency of 95%; and the activated carbon layer has an iodine adsorption value greater than 1600 mg / g and a carbon tetrachloride adsorption value greater than 100 mg / g. 2 / g; the VOC removal rate of the high-density activated carbon layer is greater than 90%; the PM0.3 filtration efficiency of the high-efficiency filter element is 99.95%.

[0119] In an optional embodiment, step S32 includes: obtaining the filtration efficiency of each filter element for different pollutant components; and determining the control parameters of the fan based on the concentration difference of each pollutant component and the filtration efficiency of each filter element filtering the pollutant components to achieve the best filtration effect.

[0120] Optionally, when the pollutant components include particulate matter, the concentration difference between the particulate matter concentration and the target concentration threshold is determined; based on the particulate matter concentration difference and the filtration efficiency of each filter element for particulate matter, the control parameters of the fan are determined to improve the filtration effect of the air purification equipment on particulate matter.

[0121] Optionally, when the pollutant components include volatile organic compounds (VOCs), the concentration difference between the VOC concentration and the target concentration threshold is determined; based on the VOC concentration difference and the filtration efficiency of each filter element for VOCs, the control parameters of the fan are determined to improve the filtration effect of the air purification equipment on VOCs.

[0122] For example, when the pollutant components include formaldehyde or toluene, the concentration difference between the formaldehyde or toluene concentration and the target concentration threshold is determined. Based on the concentration difference of formaldehyde or toluene and the filtration efficiency of each filter element for formaldehyde or toluene, the control parameters of the fan are determined to improve the filtration effect of the air purification equipment on formaldehyde or toluene.

[0123] Optionally, when the exhaust gas contains multiple pollutants, the fan control parameters corresponding to each pollutant component can be determined, and then the final fan control parameters can be determined based on the preset weight values ​​and the fan control parameters corresponding to each pollutant component.

[0124] In the technical solution of this embodiment, the pollutant concentration corresponding to each pollutant component is determined by the exhaust gas analysis results; the control parameters of the fan are determined according to the concentration difference of each pollutant component; and the control parameters of the fan are generated for different pollutant components and concentrations to filter different pollutant components in a targeted manner, thereby improving the filtration effect of the exhaust gas.

[0125] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the control method of the air purification device of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0126] This application provides an air purification device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, which are executed by the at least one processor to enable the at least one processor to perform the control method of the air purification device in the first embodiment described above.

[0127] The air purification device is equipped with a fan and a filter assembly, the filter assembly including at least one filter element, an air quality detection sensor at the air inlet, and a gas detection sensor at the air outlet.

[0128] The following is for reference. Figure 7 The diagram illustrates a structural schematic suitable for implementing the air purification device in the embodiments of this application. The air purification device in the embodiments of this application may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 7The air purification device shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of this application.

[0129] like Figure 7 As shown, the air purification device may include a processing unit 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a random access memory (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the air purification device. The processing unit 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to the I / O interface 1006: input devices 1007 including, for example, a touchscreen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, magnetic tape, hard disk, etc.; and communication devices 1009. Communication device 1009 allows the air purification device to communicate wirelessly or wiredly with other devices to exchange data. Although air purification devices with various systems are shown in the figures, it should be understood that implementation or possession of all the systems shown is not required. More or fewer systems may be implemented alternatively.

[0130] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication device, or installed from storage device 1003, or installed from ROM 1002. When the computer program is executed by processing device 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.

[0131] The air purification device provided in this application, employing the control method of the air purification device in the above embodiments, can solve the technical problem that air purification devices using the same purification technology to filter air with different pollutant components result in the failure to filter out certain pollutants, ultimately leading to poor air purification performance. Compared with the prior art, the beneficial effects of the air purification device provided in this application are the same as those of the control method of the air purification device provided in the above embodiments, and other technical features of this air purification device are the same as those disclosed in the method of the previous embodiment, and will not be repeated here.

[0132] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0133] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

[0134] This application provides a computer-readable storage medium having computer-readable program instructions (i.e., a computer program) stored thereon, the computer-readable program instructions being used to execute the control method of the air purification device in the above embodiments.

[0135] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: electrical connections having one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, system, or device. The program code contained on the computer-readable storage medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0136] The aforementioned computer-readable storage medium may be included in the air purification device; or it may exist independently and not assembled into the air purification device.

[0137] The aforementioned computer-readable storage medium carries one or more programs that, when executed by the air purification device, cause the air purification device to: acquire exhaust gas data detected by an air quality detection sensor; generate exhaust gas analysis results based on the exhaust gas data; determine the control parameters of the fan in the air purification device based on the exhaust gas analysis results, and control the fan to operate according to the control parameters. By analyzing the exhaust gas data and determining the corresponding fan control parameters, the optimal wind speed corresponding to different exhaust gas data is determined, the fan control parameters are adjusted, and the exhaust gas data is filtered in a targeted manner to improve the filtration effect of the exhaust gas data.

[0138] Computer program code for performing the operations of this application can be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, and C++, and conventional procedural programming languages ​​such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a Local Area Network (LAN) or a Wide Area Network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0139] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0140] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0141] The readable storage medium provided in this application is a computer-readable storage medium that stores computer-readable program instructions (i.e., a computer program) for executing the control method of the air purification device described above. This solves the technical problem that air purification devices use the same purification technology to filter air with different pollutant components, resulting in some pollutants not being filtered out, ultimately leading to poor air purification performance. Compared with the prior art, the beneficial effects of the computer-readable storage medium provided in this application are the same as those of the control method of the air purification device provided in the above embodiments, and will not be repeated here.

[0142] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the control method for the air purification device as described above.

[0143] The computer program product provided in this application can solve the technical problem that air purification equipment uses the same purification technology to filter air with different pollutant components, resulting in the failure to filter out some pollutants and ultimately leading to poor air purification effect. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as the beneficial effects of the control method for air purification equipment provided in the above embodiments, and will not be repeated here.

[0144] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A control method for an air purification device, characterized in that, The air purification device is equipped with an air quality detection sensor at its air inlet, and the method includes: Acquire exhaust gas data detected by air quality sensors; Based on the exhaust gas data, exhaust gas analysis results are generated, including pollutant components and pollutant concentrations; The control parameters of the fan in the air purification equipment are determined based on the exhaust gas analysis results, and the fan is controlled to operate according to the control parameters in order to adjust the fan speed.

2. The method as described in claim 1, characterized in that, The steps for determining the control parameters of the fan in the air purification equipment based on the exhaust gas analysis results include: The concentration of each pollutant component is determined based on the exhaust gas analysis results. Determine the concentration difference between the pollutant concentration of each pollutant component and the target concentration threshold; The control parameters of the fan are determined based on the concentration difference of each pollutant component.

3. The method as described in claim 2, characterized in that, The air purification device is equipped with a filter assembly, which includes at least two filter elements. The step of determining the control parameters of the fan based on the concentration difference of each pollutant component includes: Obtain the filtration efficiency of each filter element for different pollutant components; The control parameters of the fan are determined based on the concentration difference of each pollutant component and the filtration efficiency of each filter element that filters the pollutant components.

4. The method as described in claim 3, characterized in that, The step of determining the control parameters of the fan based on the concentration difference of each pollutant component and the filtration efficiency of each filter element filtering the pollutant components includes: When the pollutant component includes particulate matter, determine the concentration difference between the concentration of the particulate matter and the target concentration threshold. The control parameters of the fan are determined based on the concentration difference of the particulate matter and the filtration efficiency of each filter element for the particulate matter. When the pollutant component includes volatile organic compounds, the concentration difference between the concentration of the volatile organic compounds and the target concentration threshold is determined; The control parameters of the fan are determined based on the concentration difference of the volatile organic compounds and the filtration efficiency of each filter element for the volatile organic compounds.

5. The method as described in claim 1, characterized in that, The air purification device is equipped with a gas detection sensor at its outlet. Following the steps of determining the control parameters of the fan in the air purification device based on the exhaust gas analysis results and controlling the fan's operation according to the control parameters, the method further includes: Acquire the filtered gas data detected by the gas detection sensor; Based on the filtered gas data, generate filtration analysis results; The control parameters of the fan are adjusted based on the difference between the pollutant concentration of each pollutant component and the target concentration threshold in the filtration analysis results.

6. The method as described in claim 1, characterized in that, Before the step of acquiring the exhaust gas data detected by the air quality detection sensor, the method further includes: During laser processing, information about the material to be processed is obtained; The historical control parameters of the fan are obtained based on the material information; The fan of the air purification device is controlled to operate based on the historical control parameters.

7. The method as described in claim 5, characterized in that, The method further includes: The user settings interface is displayed, which includes a control parameter setting area and a purification effect display area. In response to a selection operation for the control parameter setting area, the control parameters of the fan input by the user are obtained; In response to a trigger operation on the purification effect display area, the exhaust gas analysis results and / or the filtration analysis results are displayed in the purification effect display area.

8. An air purification device, characterized in that, The air purification device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, the computer program being configured to implement the steps of the control method of the air purification device as claimed in any one of claims 1 to 7.

9. The air purification device as described in claim 8, characterized in that, The air purification device is equipped with a fan and a filter assembly, the filter assembly including at least one filter element; the air inlet of the air purification device is equipped with an air quality detection sensor, and the air outlet is equipped with a gas detection sensor.

10. A storage medium, characterized in that, The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, it implements the steps of the control method of the air purification device as described in any one of claims 1 to 7.

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