Dual-motor system with air flow adjustment function and air purifier

Abstract

The application discloses a double-motor system with airflow adjusting function and an air purifier, which comprises a purification shell, a double motor, a detection module for detecting floating hair outside the purification shell to obtain a detection result, and a first determination module for determining the working power of the double motor based on the detection result. The layout is in the form of double air ducts and double air wheels, which improves the absorption efficiency and adsorption effect of floating hair. Meanwhile, the floating hair outside the purification shell is detected, and the corresponding air speed is switched according to the amount of floating hair, so that the absorption efficiency of floating hair is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air purifiers, in particular to a double-motor system with airflow regulation function and an air purifier. BACKGROUND

[0002] At present, with the continuous increase of the population living alone and the continuous deepening of social pressure, people need more and more companionship and spiritual comfort in life, so the demand for pets is increasing. As we all know, cats and dogs are the most common in daily pets, but their dander is also the most serious. The dander of pets poses a non-negligible hazard to the human body, such as causing respiratory, eye, and skin irritation and allergic reactions, as well as potential microbial transmission risks. Therefore, for pet air purifiers, it is crucial to have a comprehensive function of absorbing pet dander in the environment and automatically cleaning the hair on the filter screen.

[0003] Most of the pet air purifiers on the market are single-air duct and single-air wheel layout, and their pet hair absorption positions are generally located in the lower half of the product (poor absorption effect on high dander), single side (poor absorption effect on other 3 sides and floor), and double sides (poor absorption effect on other 2 sides and floor). There are unavoidable dead angles and short effective absorption distances, which cannot achieve effective all-around hair absorption effect. At the same time, the existing air purifiers absorb floating hair at a relatively constant rate, cannot detect floating hair outside the purification shell, and cannot switch to the corresponding wind speed according to the amount of floating hair, reducing the absorption efficiency of floating hair. SUMMARY

[0004] The present application aims to solve at least one of the above technical problems. To this end, the first object of the present application is to provide a double-motor system with airflow regulation function, which is in a double-air duct and double-air wheel layout, to improve the absorption efficiency and absorption effect of floating hair. At the same time, the floating hair outside the purification shell is detected, and the wind speed is switched according to the amount of floating hair, further improving the absorption efficiency of floating hair.

[0005] The second object of the present application is to provide an air purifier.

[0006] To achieve the above-mentioned objects, the first aspect of the present application provides a double-motor system with airflow regulation function, comprising:

[0007] a purification shell;

[0008] a double-motor system, arranged inside the purification shell;

[0009] a detection module, arranged outside the purification shell, for detecting floating hair outside the purification shell to obtain a detection result;

[0010] The first determining module is configured to determine the working power of the double motor based on the detection result.

[0011] According to some embodiments of the present application, the side and bottom of the purification shell are provided with air inlet holes; the inside of the purification shell is provided with an air duct system;

[0012] The double motor operates at the determined working power, and the air with floating hair is sucked into the inside of the purification shell based on the air inlet holes and the air duct system.

[0013] According to some embodiments of the present application, the purification shell comprises an upper half shell and a lower half shell; the side of the upper half shell is provided with a first air inlet hole; the side and bottom of the lower half shell are provided with a second air inlet hole;

[0014] The air duct system comprises an upper air duct system and a lower air duct system; the upper air duct system is arranged in the inside of the upper half shell, and the lower air duct system is arranged in the inside of the lower half shell;

[0015] The double motor comprises a first motor and a second motor; the first motor sucks the air with floating hair into the inside of the upper half shell based on the first air inlet hole and the upper air duct system; the second motor sucks the air with floating hair into the inside of the lower half shell based on the second air inlet hole and the lower air duct system.

[0016] According to some embodiments of the present application, the detection module comprises:

[0017] The shooting module is configured to shoot an environmental image outside the purification shell;

[0018] The second determining module is configured to determine an edge region of the environmental image, and obtain the pixel mean value of all pixel points in the edge region; calculate a difference value based on the pixel mean value of the edge region of the environmental image of the adjacent frame, and perform fusion processing on the environmental image of the adjacent frame when it is determined that the difference value is less than a preset difference value, to obtain a panoramic image;

[0019] The third determining module is configured to:

[0020] The third determining module is configured to:

[0021] According to the number of pixel points with the gray value greater than the preset gray threshold and the number of pixel points included in the panoramic image, determine the ratio information as the detection result.

[0022] According to some embodiments of the present application, further comprising a comparison module configured to:

[0023] The third determining module is configured to:

[0024]

[0025] wherein, m is the length of the panoramic image; n is the width of the panoramic image; F(i,j) is the pixel value at (i,j) in the panoramic image; F(i,j-1) is the pixel value at (i,j-1) in the panoramic image; F(i-1,j) is the pixel value at (i-1,j) in the panoramic image;

[0026] The fusion evaluation value is compared with a preset fusion threshold value, and when it is determined that the fusion evaluation value is greater than the preset fusion threshold value, it indicates that the fusion process of the panoramic image is qualified; otherwise, it indicates that the fusion process of the panoramic image is unqualified, and needs to be reprocessed.

[0027] According to some embodiments of the present application, the purification shell further comprises a filter screen arranged in the interior, for filtering the air with floating hairs.

[0028] According to some embodiments of the present application, further comprising: an alarm module, configured to:

[0029] Based on a plurality of flow rate sensors arranged at the lower part of the filter screen, a plurality of flow rate information is obtained, and a flow rate root mean square value σ is calculated according to the plurality of flow rate information;

[0030]

[0031] wherein, n is the number of flow rate information; v i is the i th flow rate information; is the average flow rate obtained according to n flow rate information;

[0032] When it is determined that the flow rate root mean square value is less than a preset flow rate root mean square threshold value, the pressure drop P of the filter screen is calculated;

[0033]

[0034] wherein, λ is the viscosity coefficient of the air with floating hairs passing through the filter screen; S1 is the preset unit area of the filter screen; L1 is the pore size of the filter screen; L2 is the thickness of the filter screen; H is the thickness of the floating hairs attached to the filter screen; V is the preset unit volume of the filter screen; S2 is the cross-sectional area of the floating hairs attached to the filter screen;

[0035] When it is determined that the pressure drop of the filter screen is greater than a preset pressure drop, it indicates that the filter screen is blocked, and an alarm prompt is issued.

[0036] According to some embodiments of the present application, further comprising: a cleaning module, configured to, when it is determined that the pressure drop of the filter screen is greater than a preset pressure drop, perform cleaning processing on the filter screen.

[0037] According to some embodiments of the present application, the method further comprises: displaying the cleaning time length of the filter screen by the cleaning module.

[0038] The cleaning module is a laser cleaning device.

[0039] The display module comprises:

[0040] The first obtaining module is configured to obtain first attribute information of the filter screen, and calculate the power G of the laser beam emitted by the laser cleaning device according to the first attribute information; the first attribute information comprises density, specific heat capacity, temperature of the filter screen before and after the laser beam irradiation, reflectivity and heat transfer coefficient of the filter screen.

[0041]

[0042] wherein, ρ1 is the density of the filter screen; C is the specific heat capacity of the filter screen; λ is the wavelength of the laser beam emitted by the laser cleaning device; T1 is the temperature of the filter screen after the laser beam irradiation; T2 is the temperature of the filter screen before the laser beam irradiation; ζ is the reflectivity of the filter screen; K is the heat transfer coefficient of the filter screen; and t is the irradiation time length of the laser beam to the filter screen.

[0043] The second obtaining module is configured to obtain second attribute information of the floating hair attached to the filter screen, and calculate the cleaning force F of the filter screen by the laser cleaning device according to the second attribute information and the power of the laser beam emitted by the laser cleaning device; the second attribute information comprises radius, thermal expansion coefficient and density of the floating hair attached to the filter screen.

[0044]

[0045] wherein, r is the radius of the floating hair attached to the filter screen; μ is the thermal expansion coefficient of the floating hair attached to the filter screen; f is the frequency of the laser beam emitted by the laser cleaning device; χ is the amplitude of the vibration of the filter screen after the laser beam irradiation; and ρ2 is the density of the floating hair attached to the filter screen.

[0046] The querying module is configured to query a preset cleaning force-cleaning time length data table based on the cleaning force of the filter screen by the laser cleaning device, determine the cleaning time length and display the cleaning time length.

[0047] To achieve the above object, the second aspect of the present application provides an air purifier comprising the dual-motor system as described above.

[0048] The application provides a double-motor system with airflow adjusting function and an air purifier.

[0049] Additional features and advantages of the application will be set forth in the description that follows, and in part will be apparent from the description, or can be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

[0050] The technical solutions of the application are described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0051] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0052] Figure 1 is a block diagram of a double-motor system with airflow adjusting function according to an embodiment of the application;

[0053] Figure 2 is a schematic diagram of an air purifier according to an embodiment of the application;

[0054] Figure 3 is a perspective view of an air purifier according to an embodiment of the application.

[0055] Reference Signs:

[0056] Purification shell 1, first filter screen 11, second filter screen 12, first air inlet hole 13, second air inlet hole 14, upper air duct 15, upper air wheel 16, lower air duct 17, lower air wheel 18, first motor 19, second motor 20, first brush 311, second brush 312, first collection pipeline 331, second collection pipeline 332, third collection pipeline 333, fourth collection pipeline 334, collection tank 34, second driving module 35. DETAILED DESCRIPTION

[0057] The preferred embodiments of the application are described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to explain and illustrate the application, and are not used to limit the application.

[0058] As shown in Figure 1 , the first aspect embodiment of the application provides a double-motor system with airflow adjusting function, which comprises:

[0059] Purification shell 1;

[0060] Dual motors are arranged inside the purification housing;

[0061] The detection module is arranged outside the purification housing and is used to detect the floating hair outside the purification housing 1 and obtain the detection result;

[0062] The first determination module is used to determine the operating power of the dual motors based on the detection results.

[0063] The working principle of the above technical solution is as follows: the purification housing 1 is provided with a dual air duct and dual impeller configuration, corresponding to dual motors, including a first motor 19 and a second motor 20. Each motor corresponds to a corresponding air duct and impeller, and is used to adjust the corresponding wind speed. The detection module is used to detect the floating hair on the outside of the purification housing 1, obtain a detection result, determine the amount of floating hair on the outside of the purification housing 1 based on the detection result, and then determine the operating power of the corresponding motor based on the floating hair amount according to a preset floating hair amount-operating power data table, thereby achieving the corresponding wind speed according to the different floating hair amounts.

[0064] The beneficial effects of the above technical solution are as follows: the dual-duct, dual-impedance layout improves the absorption efficiency and adsorption effect of floating hair. Floating hair on the outside of the purification housing 1 is simultaneously detected, and the corresponding wind speed is switched based on the amount of floating hair. When the amount of floating hair on the ground is detected to be greater than a preset threshold, the speed of the second motor is increased. If no floating hair is detected in the air, the speed of the first motor can be adjusted to 0. If the amount of floating hair in the air is detected to be greater than a preset threshold, the speed of the first motor is increased. If no floating hair is detected on the ground, the speed of the second motor can be adjusted to 0. If the amount of floating hair on the ground and in the air is detected to be greater than a preset threshold, the speed of the dual motors is increased. Adjusting the speed of the dual motors according to the amount of floating hair further improves the absorption efficiency of floating hair.

[0065] like Figures 2-3 As shown, according to some embodiments of the present invention, air inlet holes are provided on the side and bottom of the purification housing 1; an air duct system is provided inside the purification housing 1;

[0066] The dual motors operate at a determined working power, and based on the air inlet holes and the air duct system, the air with the floating hair is sucked into the interior of the purification housing 1.

[0067] According to some embodiments of the present invention, the purification housing 1 includes an upper housing and a lower housing; wherein the side of the upper housing is provided with a first air inlet 13; the side and bottom of the lower housing are provided with a second air inlet 14;

[0068] The air duct system includes an upper air duct system and a lower air duct system. The upper air duct system is arranged inside the upper shell, and the lower air duct system is arranged inside the lower shell.

[0069] The double motor includes a first motor 19 and a second motor 20; the first motor 19 sucks the air with floating hair into the inside of the upper half shell based on the first air inlet hole 13 and the upper air duct 15 system; the second motor 20 sucks the air with floating hair into the inside of the lower half shell based on the second air inlet hole 14 and the lower air duct 17 system.

[0070] The working principle and beneficial effects of the above technical solution are as follows: the upper half shell is designed with air inlet holes on the side surface, which can adsorb floating hair and dandruff in the air 360 degrees; the first filter screen 11 is arranged inside; the floating hair and dandruff are filtered outside the first filter screen 11; the lower half shell is designed with air inlet holes on the side surface and the bottom, which can adsorb floating hair and dandruff on the floor 360 degrees; the second filter screen 12 is arranged inside; the floating hair and dandruff are filtered outside the second filter screen 12; a double air duct system is designed inside; the upper air duct system includes the upper air duct 15 and the upper air wheel 16; the lower air duct system includes the lower air duct 17 and the lower air wheel 18; the double air duct system is matched with a double motor (the first motor 19 and the second motor 20) or a double-shaft motor, which can ensure sufficient air inlet and air speed; the double motor (the first motor 19 and the second motor 20) or the double-shaft motor is started at the maximum gear, the air with floating hair and dandruff is sucked into the inside from the air inlet holes on the upper, lower and bottom periphery, the floating hair and dandruff are filtered outside the first filter screen 11 and the second filter screen 12 when passing through the first filter screen 11 and the second filter screen 12, and the filtered air is blown out from the middle of the machine (the air outlet can be arranged on the front and rear double side surfaces of the machine, the left and right double side surfaces of the machine, a single side surface of the machine, four side surfaces of the machine or three side surfaces of the machine).

[0071] According to some embodiments of the present application, the detection module comprises:

[0072] The shooting module is configured to shoot an environmental image outside the purification shell 1.

[0073] The second determination module is configured to determine an edge region of the environmental image, and obtain a pixel mean value of all pixel points in the edge region; calculate a difference value according to the pixel mean value of the edge region of the environmental image of the adjacent frame, and perform fusion processing on the environmental image of the adjacent frame when it is determined that the difference value is less than a preset difference value, to obtain a panoramic image.

[0074] The third determination module is configured to:

[0075] perform grayscale processing on the panoramic image, determine a grayscale value of a pixel point in the panoramic image, and compare the grayscale value with a preset grayscale threshold value to determine the number of pixel points with a grayscale value greater than the preset grayscale threshold value.

[0076] According to the number of pixel points with a grayscale value greater than the preset grayscale threshold value and the number of pixel points included in the panoramic image, determine a ratio information as a detection result.

[0077] Working principle of the above technical solution: In this embodiment, the shooting of the environment image facilitates the determination of scene information including floating hair outside the purification shell 1.

[0078] In this embodiment, an edge detection algorithm (such as Canny, Sobel, Prewitt, Roberts, or Laplacian) is used to determine the edge region of the environment image. Based on the edge detection algorithm, the region with obvious brightness change in the image, i.e., the edge, can be identified. For the detected edge region, all the pixel points in the region are traversed. The RGB values of each pixel point are accumulated. The accumulated sum is divided by the total number of pixel points in the edge region to obtain the pixel mean value. Adjacent frame processing: For consecutive adjacent frames, the pixel mean value of the edge region of each frame image is calculated respectively. The pixel mean values of the edge regions of the adjacent two frames are subtracted to obtain the difference value. By comparing the difference value of the pixel mean values of the edge regions of the adjacent frames with the preset difference value, the similarity of the adjacent frames can be determined. If the difference value is small, it means that the adjacent frames in this region are similar, which is suitable for fusion to eliminate possible splicing marks and obtain a more natural and smooth panoramic image. During the fusion process, attention should be paid to aligning adjacent frames to ensure that the fused panoramic image is visually continuous and has no obvious seams. Generating panoramic image: The images are fused frame by frame until the fusion of all adjacent frames is completed. The final panoramic image will contain information of all frames and maintain good continuity and consistency in the edge region. The panoramic image is the overall environment image outside the shell.

[0079] In this embodiment, the panoramic image is converted from color (RGB) to grayscale image. Each pixel point in the grayscale image has only one grayscale value, which is usually in the range of 0-255 (for 8-bit grayscale image). The grayscale value of each pixel point can be obtained by traversing the image matrix. The preset grayscale threshold is the threshold for determining whether it is floating hair. Traverse each pixel point in the grayscale image and compare its grayscale value with the preset threshold. If the grayscale value is greater than the threshold, mark the pixel point as a qualified pixel point. The grayscale value of floating hair is usually larger than that of the background pixels in the environment. During the traversal process, a counter is used to record the number of pixel points with grayscale values greater than the threshold. The total number of pixel points of the panoramic image (after grayscale) is obtained. The ratio of the number of pixel points with grayscale values greater than the preset grayscale threshold to the total number of pixel points of the panoramic image is calculated as a basis for judging the amount of floating hair in the air outside the shell.

[0080] The beneficial effects of the above technical solution are: several environment images outside the purification shell 1 are shot and fused to obtain a panoramic image. Based on the number of pixel points with grayscale values greater than the preset grayscale threshold in the panoramic image and the number of pixel points included in the panoramic image, the ratio information is determined as the detection result, realizing the detection of the amount of floating hair in the air outside the shell.

[0081] According to some embodiments of the present application, the method further comprises a comparison module configured to:

[0082] Before the third determination module performs the gray-scale processing on the panoramic image, the method further comprises a calculation of a fusion evaluation value W of the panoramic image;

[0083]

[0084] wherein m is the length of the panoramic image; n is the width of the panoramic image; F(i,j) is the pixel value at (i,j) in the panoramic image; F(i,j-1) is the pixel value at (i,j-1) in the panoramic image; F(i-1,j) is the pixel value at (i-1,j) in the panoramic image;

[0085] The fusion evaluation value is compared with a preset fusion threshold value, and when it is determined that the fusion evaluation value is greater than the preset fusion threshold value, it indicates that the fusion process of the panoramic image is qualified; otherwise, it indicates that the fusion process of the panoramic image is unqualified and needs to be reprocessed.

[0086] The working principle and beneficial effects of the above technical solution are as follows: Before the third determination module performs the gray-scale processing on the panoramic image, the fusion evaluation value of the panoramic image is calculated based on the comparison module, the fusion evaluation value is compared with a preset fusion threshold value, and whether the fusion process of the panoramic image is qualified is determined according to the comparison result; when it is determined that the fusion process of the panoramic image is unqualified, the fusion process is reprocessed, which facilitates to improve the fusion quality of the panoramic image and further facilitates to improve the accuracy of the detection result.

[0087] According to some embodiments of the present application, the purification shell 1 further comprises a filter screen arranged inside for filtering air with floating hair.

[0088] According to some embodiments of the present application, the method further comprises an alarm module configured to:

[0089] Based on the plurality of flow rate information obtained by the plurality of flow rate sensors arranged at the lower part of the filter screen, a flow rate root mean square value σ is calculated according to the plurality of flow rate information;

[0090]

[0091] wherein n is the number of flow rate information; v i is the i-th flow rate information; is the average flow rate obtained according to n flow rate information;

[0092] When it is determined that the flow rate root mean square value is less than a preset flow rate root mean square threshold value, a pressure drop P of the filter screen is calculated;

[0093]

[0094] Wherein, lambda is the viscosity coefficient of the air with floating hair passing through the filter screen; S1 is the preset unit area of the filter screen; L1 is the pore size of the filter screen; L2 is the thickness of the filter screen; H is the thickness of the floating hair attached to the filter screen; V is the preset unit volume of the filter screen; S2 is the cross-sectional area of the floating hair attached to the filter screen;

[0095] When the pressure drop of the filter screen is determined to be greater than the preset pressure drop, it indicates that the filter screen is blocked, and an alarm prompt is sent.

[0096] The working principle and beneficial effects of the above technical solution are as follows: Based on the flow rate information obtained by the plurality of flow rate sensors arranged at the lower part of the filter screen, the flow rate root mean square value is calculated according to the plurality of flow rate information, which can reflect the overall change degree or fluctuation degree of the flow rate. When the flow rate root mean square value is determined to be less than the preset flow rate root mean square threshold, it indicates that the flow rate passing through the filter screen is abnormal, that is, the filter screen may be abnormal, and therefore the pressure drop of the filter screen needs to be calculated. When the pressure drop of the filter screen is determined to be greater than the preset pressure drop, it indicates that the filter screen is blocked, and an alarm prompt is sent, so that the filter screen can be cleaned in time, and the air with floating hair can be continuously absorbed and purified.

[0097] According to some embodiments of the present application, the cleaning module is further used to clean the filter screen when the pressure drop of the filter screen is determined to be greater than the preset pressure drop.

[0098] According to some embodiments of the present application, the display module is further used to determine and display the cleaning time length of the cleaning module for cleaning the filter screen.

[0099] The cleaning module is a laser cleaning device.

[0100] The display module comprises:

[0101] The first acquisition module is used to acquire the first attribute information of the filter screen, and calculate the power G of the laser beam emitted by the laser cleaning device according to the first attribute information. The first attribute information includes the density, specific heat capacity, temperature of the filter screen before and after the laser beam irradiation, reflectivity and heat transfer coefficient of the filter screen.

[0102]

[0103] Wherein, rho1 is the density of the filter screen; C is the specific heat capacity of the filter screen; lambda is the wavelength of the laser beam emitted by the laser cleaning device; T1 is the temperature of the filter screen after the laser beam irradiation; T2 is the temperature of the filter screen before the laser beam irradiation; zeta is the reflectivity of the filter screen; K is the heat transfer coefficient of the filter screen; t is the irradiation time length of the laser beam to the filter screen.

[0104] The second acquisition module is configured to acquire second attribute information of the floating hair attached to the filter screen, calculate a cleaning force F of the laser cleaning device when the laser cleaning device performs cleaning processing on the filter screen according to the second attribute information and a power of the laser beam emitted by the laser cleaning device, and the second attribute information includes a radius, a thermal expansion coefficient and a density of the floating hair attached to the filter screen.

[0105]

[0106] wherein r is the radius of the floating hair attached to the filter screen, μ is the thermal expansion coefficient of the floating hair attached to the filter screen, f is the frequency of the laser beam emitted by the laser cleaning device, χ is the amplitude of the vibration of the filter screen after the laser beam irradiates the filter screen, and ρ2 is the density of the floating hair attached to the filter screen.

[0107] The query module is configured to query a preset cleaning force-cleaning time data table based on the cleaning force of the laser cleaning device when the laser cleaning device performs cleaning processing on the filter screen, determine the cleaning time and display the cleaning time.

[0108] The working principle and beneficial effects of the above technical solution are as follows: the principle of the laser cleaning device is that the laser transmits a large amount of heat to the dirt to make the temperature of the dirt rise, so that the dirt is expanded by heat and the bonding force with the surface of the base material is weakened or even falls off. The display module determines the cleaning time of the cleaning module when the cleaning module performs cleaning processing on the filter screen and displays the cleaning time, so that the user can accurately determine the cleaning time information and improve the user experience. The display module includes: a first acquisition module configured to acquire first attribute information of the filter screen, calculate the power of the laser beam emitted by the laser cleaning device according to the first attribute information, acquire second attribute information of the floating hair attached to the filter screen, calculate the cleaning force of the laser cleaning device when the laser cleaning device performs cleaning processing on the filter screen according to the second attribute information and the power of the laser beam emitted by the laser cleaning device, query a preset cleaning force-cleaning time data table based on the cleaning force of the laser cleaning device when the laser cleaning device performs cleaning processing on the filter screen, determine the cleaning time and display the cleaning time, so that the user can know the cleaning time and thus use in time to achieve air purification.

[0109] In an embodiment, the air purifier further includes a hair cleaning and collecting module configured to clean and collect the hair after the cleaning processing by the laser cleaning device.

[0110] To achieve the above object, the second aspect embodiment of the present application provides an air purifier including the double-motor system as described above.

[0111] In an embodiment, the air purifier includes a hair cleaning and collecting module configured to further clean and collect the floating hair on the filter screen. The hair cleaning and collecting module includes a brush, a first driving module, a collecting pipeline, a collecting tank 34 and a second driving module 35, wherein the first driving module is configured to drive the brush to rotate around the collecting pipeline, the collecting pipeline is configured to guide the floating hair on the filter screen to the collecting tank 34, and the second driving module 35 is configured to drive the collecting tank 34 to rotate around the collecting pipeline.

[0112] The brush is arranged outside the filter screen and connected to one end of a collecting pipeline; the other end of the collecting pipeline is connected to a collecting tank 34;

[0113] The first driving module is used for driving the brush to move along the direction of the filter screen.

[0114] The second driving module 35 is used for connecting the air outlet of the collecting tank 34, so as to facilitate the suction of the floating hair and dander treated by the brush into the collecting tank 34.

[0115] The brush comprises a first brush 311 and a second brush 312; wherein,

[0116] The first brush 311 is arranged outside the first filter screen 11 and comprises a first connecting port and a second connecting port, which are respectively connected to one end of a first collecting pipeline 331 and one end of a second collecting pipeline 332; the other end of the first collecting pipeline 331 and the other end of the second collecting pipeline 332 are connected to the collecting tank 34.

[0117] The second brush 312 is arranged outside the second filter screen 12 and comprises a third connecting port and a fourth connecting port, which are respectively connected to one end of a third collecting pipeline 333 and one end of a fourth collecting pipeline 334; the other end of the third collecting pipeline 333 and the other end of the fourth collecting pipeline 334 are connected to the collecting tank 34.

[0118] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A dual motor system with airflow adjustment function, characterized by, The system comprises: a purification shell; a double motor arranged inside the purification shell; a detection module arranged outside the purification shell, used for detecting floating hair outside the purification shell to obtain a detection result; a first determination module used for determining the working power of the double motor based on the detection result; the side and bottom of the purification shell are provided with air inlet holes; the inside of the purification shell is provided with an air duct system; the double motor operates at the determined working power, and air with floating hair is sucked into the inside of the purification shell based on the air inlet holes and the air duct system; the detection module comprises: a shooting module used for shooting an environmental image outside the purification shell; a second determination module used for determining the edge region of the environmental image and obtaining the pixel mean value of all pixel points in the edge region; a difference value is calculated based on the pixel mean value of the edge region of the adjacent frames of the environmental image, and when it is determined that the difference value is less than a preset difference value, the adjacent frames of the environmental image are fused to obtain a panoramic image; a third determination module used for: carrying out grayscale processing on the panoramic image, determining the grayscale value of the pixel points in the panoramic image, and comparing the grayscale value with a preset grayscale threshold to determine the number of pixel points with a grayscale value greater than the preset grayscale threshold; determining the ratio information as the detection result based on the number of pixel points with a grayscale value greater than the preset grayscale threshold and the number of pixel points included in the panoramic image; further comprising a comparison module used for: Before the third determining module performs the gray-scale processing on the panoramic image, a fusion evaluation value of the panoramic image is calculated ; wherein, is a length of the panoramic image; is a width of the panoramic image; is a pixel value at in the panoramic image; is a pixel value at in the panoramic image; is a pixel value at in the panoramic image; comparing the fusion evaluation value with a preset fusion threshold, and when it is determined that the fusion evaluation value is greater than the preset fusion threshold, it indicates that the fusion process of the panoramic image is qualified; otherwise, it indicates that the fusion process of the panoramic image is unqualified and needs to be re-fused.

2. The dual motor system with airflow adjustment function according to claim 1, wherein, The purification shell comprises an upper half shell and a lower half shell; the side of the upper half shell is provided with a first air inlet hole; the side and bottom of the lower half shell are provided with a second air inlet hole; the air duct system comprises an upper air duct system and a lower air duct system, the upper air duct system is arranged inside the upper half shell, and the lower air duct system is arranged inside the lower half shell; the double motor comprises a first motor and a second motor; the first motor sucks air with floating hair into the inside of the upper half shell based on the first air inlet hole and the upper air duct system; the second motor sucks air with floating hair into the inside of the lower half shell based on the second air inlet hole and the lower air duct system.

3. The dual motor system with airflow adjustment function according to claim 1, wherein, The purification shell further comprises a filter screen arranged inside, used for filtering air with floating hair.

4. The dual motor system with airflow adjustment function according to claim 3, wherein, Further comprising an alarm module used for: The flow rate root mean square value is calculated according to the flow rate information ; wherein, is the number of flow rate information; is the first flow rate information; is the average flow rate obtained from the first flow rate information; determining that the root mean square value of the flow rate is less than a preset root mean square threshold of the flow rate ; wherein, viscosity coefficient of air with floating hair passing through the filter screen; preset unit area of the filter screen; pore diameter of the filter screen; thickness of the filter screen; thickness of the floating hair attached to the filter screen; preset unit volume of the filter screen; cross-sectional area of the floating hair attached to the filter screen; when it is determined that the pressure drop of the filter screen is greater than a preset pressure drop, it indicates that the filter screen is blocked, and an alarm prompt is sent.

5. The dual motor system with air flow adjustment function according to claim 4, wherein, Further comprising: a cleaning module used for cleaning the filter screen when it is determined that the pressure drop of the filter screen is greater than a preset pressure drop.

6. The dual motor system with air flow adjustment function according to claim 5, wherein, Further comprising: a display module used for determining and displaying the cleaning duration of the cleaning module for cleaning the filter screen; the cleaning module is a laser cleaning device; the display module comprises: The first acquisition module is configured to acquire first attribute information of the filter screen, and calculate a power of a laser beam emitted by the laser cleaning device according to the first attribute information The first attribute information includes density, specific heat capacity, temperature of the filter screen before and after the laser beam is irradiated to the filter screen, reflectivity, and heat transfer coefficient of the filter screen. wherein, is the density of the filter screen; is the specific heat capacity of the filter screen; is the wavelength of the laser beam emitted by the laser cleaning apparatus; is the temperature of the filter screen after the laser beam is irradiated onto the filter screen; is the temperature of the filter screen before the laser beam is irradiated onto the filter screen; is the reflectivity of the filter screen; is the heat transfer coefficient of the filter screen; is the duration of irradiation of the filter screen by the laser beam; The second acquisition module is configured to acquire second attribute information of the floating hair attached to the filter screen, and calculate a cleaning force of the laser cleaning device when cleaning the filter screen according to the second attribute information and a power of the laser beam emitted by the laser cleaning device The second attribute information includes a radius, a thermal expansion coefficient and a density of the floating hair attached to the filter screen. wherein, is the radius of the floating hair attached to the filter screen; is the coefficient of thermal expansion of the floating hair attached to the filter screen; is the frequency of the laser beam emitted by the laser cleaning device; is the amplitude of the vibration of the filter screen after the laser beam is irradiated to the filter screen; is the density of the floating hair attached to the filter screen; a query module used for querying a preset cleaning force-cleaning duration data table based on the cleaning force of the laser cleaning device for cleaning the filter screen, determining the cleaning duration and displaying it.

7. An air cleaner characterized by comprising: The system comprises the double motor system according to any one of claims 1-6.

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