Self-cleaning control method and control device of fresh air system, and fresh air system

Abstract

The present application relates to a kind of self-cleaning control method, control device and fresh air system of fresh air system, it relates to fresh air system technical field.The self-cleaning control method, control device and fresh air system of fresh air system of the present application, by comparing the original dirty value S x Of dust prevention unit in fresh air system with preset dirty degree threshold value, and comparing the local original dirty value S xn Of dust prevention unit with preset dirty degree threshold value, can determine the self-cleaning mode of cleaning dust prevention unit and the disinfection mode of disinfecting it, to realize the effect of starting different cleaning mode and disinfection mode according to different dirty degree, not only can carry out self-adapting dust removal, it is also conducive to realizing the energy saving and environmental protection of fresh air system, to enhance the value of fresh air system.

Description

Technical Field

[0001] This invention relates to the field of fresh air system technology, and particularly to a self-cleaning control method, control device, and fresh air system for a fresh air system. Background Technology

[0002] The continuous and rapid development of modern industry and the escalating environmental impact of human activities have led to a proliferation of smog, dust, and particulate matter in human living spaces. Modern people have increasingly higher demands for quality of life and a strong need for clean air. Furthermore, with the booming development of the big data processing market, important computer rooms such as data processing centers are placing higher demands on the cleanliness of their air circulation systems. The conventional solution is to introduce a fresh air system. Currently, fresh air systems typically use filters and other dust-proof components to remove dust. However, after prolonged use, the dust accumulated on these filters gradually increases, affecting their filtration efficiency. Therefore, existing technologies generally use brushes or water tanks to clean the filters, but these technologies cannot intelligently identify the degree of dirt on the filters and adopt appropriate cleaning modes accordingly. Summary of the Invention

[0003] This invention provides a self-cleaning control method, control device, and fresh air system for solving at least one of the aforementioned technical problems.

[0004] This invention provides a self-cleaning control method for a fresh air system, comprising the following steps:

[0005] The original dirt level S of the dustproof unit in the fresh air system x The self-cleaning mode for cleaning the dustproof unit is determined by comparing it with a preset dirt level threshold.

[0006] Based on the self-cleaning mode executed and / or based on the dirt value S of the dustproof unit after the corresponding self-cleaning mode was executed. x The result of comparing the dustproof unit with the preset dirt level threshold determines whether to perform a disinfection operation and whether to switch to the self-cleaning mode.

[0007] When disinfecting the dustproof unit, the local original dirt value S of the dustproof unit is... xn The disinfection mode for disinfecting the dustproof unit is determined by comparing it with a preset dirt level threshold.

[0008] After the disinfection mode ends, determine whether the time condition has been triggered. If so, repeat the above steps.

[0009] In one implementation, the original dirt value S of the dustproof unit in the fresh air system is... xComparing with the dirt degree threshold to determine the self-cleaning mode for cleaning the dust-proof unit includes the following sub-steps:

[0010] The preset dirt degree thresholds are S0, S1, S2 and S3;

[0011] The original dirt value S of the dust-proof unit in the fresh air system x is compared with the dirt degree thresholds S0, S1, S2 and S3, if S1 < S x < S2, the first self-cleaning mode is activated; if S2 ≤ S x < S3, the second self-cleaning mode is activated; if S x ≥ S3, the third self-cleaning mode is activated;

[0012] The cleaning degree of the third self-cleaning mode is greater than that of the second self-cleaning mode, and the cleaning degree of the second self-cleaning mode is greater than that of the first self-cleaning mode.

[0013] In one embodiment, the first self-cleaning mode includes air blowing operation, dust removal operation and drying operation performed on the dust-proof unit, in the first self-cleaning mode, the air volume of the air blowing operation is F1, the rotating speed of the dust removal operation is G1, and the hot air volume of the drying operation is H1;

[0014] The second self-cleaning mode includes foam cleaning operation, dust removal operation and drying operation performed on the dust-proof unit, in the second self-cleaning mode, the air volume of the foam cleaning operation is P1, the rotating speed of the dust removal operation is G2, and the hot air volume of the drying operation is H2;

[0015] The third self-cleaning mode includes foam cleaning operation, dust removal operation and drying operation performed on the dust-proof unit, in the third self-cleaning mode, the air volume of the foam cleaning operation is P2, the rotating speed of the dust removal operation is G3, and the hot air volume of the drying operation is H3;

[0016] Wherein, F1<P1<P2, H1<H2<H3, G1<G2<G3.

[0017] In one embodiment, determining whether to perform a disinfection operation on the dust-proof unit and whether to switch the self-cleaning mode according to the executed self-cleaning mode and / or according to a comparison result between the dirt value S x ' of the dust-proof unit after the corresponding self-cleaning mode is executed and the preset dirt degree threshold includes the following sub-steps:

[0018] Acquiring the dirt value S x ' of the dust-proof unit after the corresponding self-cleaning mode is executed;

[0019] Comparing the dirt value S x'Compare with the dirt level thresholds S0, S1, S2, and S3. If the first self-cleaning mode is executed and S...' x If S0 ≤ S0, then the disinfection operation is initiated; if the first self-cleaning mode is executed and S0 < S x If '<S2, then the self-cleaning mode will be changed to the second self-cleaning mode;'

[0020] If the second self-cleaning mode is executed and S x If S0 ≤ S0, then the disinfection operation is initiated; if the second self-cleaning mode is executed and S0 < S x If '<S2, then the self-cleaning mode will be changed to the third self-cleaning mode;'

[0021] If the third self-cleaning mode is executed, the disinfection operation will be started directly.

[0022] In one embodiment, the entire detection area of ​​the dustproof unit is divided into m local areas, wherein the m-th local area is located at the center of the dustproof unit, and the other local areas are distributed along the entire circumference of the m-th local area.

[0023] The local initial dirt value S of the dustproof unit xn Let be the dirt value of the nth local area on the dustproof unit; where n ≤ m, and n and m are both positive integers.

[0024] In one embodiment, when disinfecting the dustproof unit, the local original dirt value S of the dustproof unit is... xn The disinfection mode for disinfecting the dustproof unit is determined by comparing it with a preset dirt level threshold, including the following sub-steps:

[0025] If S xn If S < S1, then the first disinfection mode is activated; if S xn If S1 is greater than or equal to 1, then the second disinfection mode will be activated.

[0026] The first disinfection mode includes disinfecting the nth dirty area on the dustproof unit, with a disinfection time of T. a ;

[0027] The second disinfection mode includes disinfecting the nth, (n-1)th, (n+1)th, and mth dirt distribution areas on the dustproof unit, with a disinfection time of 2T. a .

[0028] In one implementation, the original dirt value S of the dustproof unit in the fresh air system is... x Before comparing with a preset dirt level threshold, the following steps are also included:

[0029] The initial dirt value S of the dustproof unitx Conduct testing;

[0030] Record the local original dirt value S corresponding to the nth dirt distribution area. xn ;

[0031] Among them, the original dirt value S of the dustproof unit x The detection time interval is T1.

[0032] In one implementation, in the initial state, the time variable T x The initial dirt value S of the dustproof unit is 0. x S0;

[0033] After the disinfection mode ends, determining whether the time condition has been triggered includes the following sub-steps:

[0034] After the disinfection mode ends, set the time variable T. x Set it to 0, and set the original dirt value S of the dustproof unit to 0. x S0;

[0035] Send the user signals that the self-cleaning mode and the disinfection mode have been completed;

[0036] The time variable T x After adding 1, check T. x If +1 is greater than or equal to T1, then the original dirt value S of the dustproof unit is applied. x Perform the detection step; if not, return the time variable T. x The step of adding 1.

[0037] In one implementation, the original dirt value S of the dustproof unit in the fresh air system is... x When compared with the soiling thresholds S0, S1, S2, and S3,

[0038] If S1 < S x <S2, also execute the step of sending the user the degree of dirtiness of the dustproof unit to S1;

[0039] If S2≤S x <S3, also execute the step of sending the user the degree of dirtiness of the dustproof unit to S2;

[0040] If S x ≥S3, and also perform the step of sending the user the dustproof unit's level of dirtiness to S1.

[0041] In one implementation, when each cleaning mode is activated, one end of the dustproof unit is wound and the other end is unwound, so that the dustproof unit moves toward the cleaning module; after each cleaning mode ends, the dustproof unit moves back to its original position.

[0042] According to a second aspect of the present invention, the present invention provides a self-cleaning control device for a fresh air system, comprising a visual detection module, a disinfection module, a cleaning module and a control module, wherein the visual detection module and the disinfection module are respectively disposed on both sides of a dustproof unit of the fresh air system, and the cleaning module is disposed on the dustproof unit;

[0043] The visual inspection module is configured to obtain the original dirt value S of the dustproof unit in the fresh air system. x The local initial dirt value S of the dustproof unit xn And the dirt value S of the dustproof unit after the corresponding self-cleaning mode was executed. x ', and send them to the control module respectively;

[0044] The control module is configured to measure the initial dirt level S of the dustproof unit in the fresh air system. x The self-cleaning mode for cleaning the dustproof unit is determined by comparing it with a preset dirt level threshold.

[0045] The control module is also configured to adjust the dustproof unit's dirt level S based on the executed self-cleaning mode and / or the dirt value S of the dustproof unit after the corresponding self-cleaning mode has been executed. x The result of comparing the dustproof unit with the preset dirt level threshold determines whether to perform a disinfection operation and whether to switch to the self-cleaning mode.

[0046] The control module is also configured to measure the local initial dirt value S of the dustproof unit. xn The disinfection mode for disinfecting the dustproof unit is determined by comparing it with a preset dirt level threshold.

[0047] The cleaning module is configured to execute a corresponding self-cleaning mode, and the disinfection module is configured to execute a corresponding disinfection mode.

[0048] The control module is also configured to determine whether a time condition is triggered after the disinfection mode ends.

[0049] In one embodiment, the cleaning module includes a blowing module, a dust removal module, a drying module, and a dust collection module;

[0050] The blowing and washing module is connected to the upper part of the drying module and is located at the upper end of the dustproof unit;

[0051] The drying module is located on one or both sides of the dustproof unit;

[0052] The dust removal module is provided with a groove for the dustproof unit to pass through.

[0053] In one embodiment, the blowing module is configured to blow air to the dust-proof unit with an air volume of F1, perform foam cleaning on the dust-proof unit with an air volume of P1, or perform foam cleaning on the dust-proof unit with an air volume of P2;

[0054] The drying module is configured to dry the dust-proof unit with a hot air volume of H1, H2 or H3;

[0055] The dust removal module is configured to remove dust from the dust-proof unit at a rotation speed of G1, G2 or G3;

[0056] wherein, F1<P1<P2, H1<H2<H3, G1<G2<G3.

[0057] In one embodiment, the cleaning module further comprises a dust collection module, which is arranged at the lower end of the dust-proof unit and can cover the area corresponding to the lower ends of the blowing module, the dust removal module and the drying module;

[0058] The dust collection module is configured as a funnel-shaped structure, and an opening and closing device is provided at the bottom end of the dust collection module, wherein the opening and closing device is configured to open when the weight of dust collected in the dust collection module reaches a threshold value.

[0059] In one embodiment, the disinfection module comprises a plurality of UV lamps, one of which is located at a central position, the remaining UV lamps are equally spaced in the circumferential direction of the UV lamp at the central position, each UV lamp corresponds to one dirt distribution area of the dust-proof unit; each UV lamp is connected to the control module and is independently controlled by the control module.

[0060] In one embodiment, the device further comprises a moving module, the moving module comprises a first rotating shaft and a second rotating shaft respectively arranged on both sides of the dust-proof unit, and the dust-proof unit can be wound on the first rotating shaft or the second rotating shaft;

[0061] The moving module is configured such that when the first rotating shaft winds and the second rotating shaft unwinds, the dust-proof unit is moved towards a direction close to the cleaning module; when the first rotating shaft unwinds and the second rotating shaft winds, the dust-proof unit is moved towards a direction away from the cleaning module.

[0062] In one embodiment, the device further comprises a first housing and a second housing, and the first housing and the second housing are connected in a sealing manner;

[0063] The visual detection module, the disinfection module, the cleaning module, the control module and the dust collection module are all arranged inside the first housing.

[0064] In one embodiment, an air inlet is provided on one side of the first housing, and the disinfection module is located inside the air inlet; an air outlet is provided on the second housing opposite to the air inlet, and the air outlet is connected to a blower.

[0065] In one embodiment, the first housing is further provided with a collection hole connected to the opening and closing device.

[0066] In one embodiment, a communication module is also included, which is integrated into the control module and configured to send signals to the mobile terminal.

[0067] According to a third aspect of the present invention, the present invention provides a fresh air system including the above-described self-cleaning control device, and further including a dustproof unit, the dustproof unit including a dustproof net configured as an elongated strip.

[0068] Compared with the prior art, the advantage of the present invention is that it reduces the initial dirt value S of the dustproof unit in the fresh air system. x The original dirt level S of the dustproof unit was compared with the preset dirt level threshold. xn By comparing with preset dirt levels, the self-cleaning mode for cleaning the dustproof unit and the disinfection mode for disinfecting it can be determined. This achieves the effect of activating different cleaning and disinfection modes according to different levels of dirt, which not only enables adaptive dust removal but also helps to achieve energy saving and environmental protection of the fresh air system, thereby enhancing the value of the fresh air system. Attached Figure Description

[0069] The invention will now be described in more detail with reference to embodiments and the accompanying drawings.

[0070] Figure 1 This is a flowchart of the self-cleaning control method of the fresh air system in an embodiment of the present invention;

[0071] Figure 2 yes Figure 1 In the middle, S1 < S x A flowchart of the steps executed during <S2;

[0072] Figure 3 yes Figure 1 In the case of S2≤S x A flowchart of the steps executed during S3;

[0073] Figure 4 yes Figure 1 In the middle, S x A flowchart of the steps performed when S3 is greater than or equal to S3;

[0074] Figure 5This is a schematic diagram of a dustproof unit divided into m local regions in an embodiment of the present invention, where m is 9;

[0075] Figure 6a The distribution diagram of the preset dirtiness threshold S0 in the embodiments of the present invention;

[0076] Figure 6b In the embodiments of the present invention, the preset dirt level threshold is a distribution diagram of S1;

[0077] Figure 6c The distribution diagram of the preset dirtiness threshold S2 in the embodiments of the present invention;

[0078] Figure 6d The distribution diagram of the preset dirtiness threshold S3 in the embodiments of the present invention;

[0079] Figure 7 In a specific embodiment of the present invention, the original dirt distribution area value S corresponding to the first local area is... x1 Distribution map;

[0080] Figure 8a This is a three-dimensional structural diagram of the fresh air system viewed from the front in an embodiment of the present invention, showing the state when the opening and closing device of the dust collection module is closed;

[0081] Figure 8b This is a three-dimensional structural diagram of the fresh air system as viewed from the front in an embodiment of the present invention, showing the dust collection module in the open state when the opening and closing device is open;

[0082] Figure 9 This is a three-dimensional structural diagram of the fresh air system as viewed from the rear in an embodiment of the present invention;

[0083] Figure 10 This is a three-dimensional structural diagram of the self-cleaning control device of the fresh air system in an embodiment of the present invention;

[0084] Figure 11 This is an exploded view of the self-cleaning control device of the fresh air system in an embodiment of the present invention;

[0085] Figure 12a yes Figure 8a Enlarged view of point A in the middle;

[0086] Figure 12b yes Figure 8b Enlarged view of point B in the middle;

[0087] Figure 13 yes Figure 11 The diagram shows a three-dimensional structure of the disinfection module.

[0088] Figure label:

[0089] 100. Dustproof unit; 101. All detection areas of the dustproof unit;

[0090] 210. First shell; 220. Second shell;

[0091] 211. Air inlet; 212. Collection hole; 221. Air outlet; 222. Blower;

[0092] 310. Cleaning module; 320. Disinfection module; 330. Visual inspection module; 340. Control module; 350. Movement module;

[0093] 350. Mobile module;

[0094] 311. Washing module; 312. Dust removal module; 313. Drying module; 314. Dust collection module; 315. Opening and closing device; 3131. Tank body;

[0095] 351. First rotating shaft; 352. First motor; 353. Second rotating shaft; 354. Second motor. Detailed Implementation

[0096] The invention will now be further described with reference to the accompanying drawings.

[0097] like Figures 1-4 As shown, according to a first aspect of the present invention, the present invention provides a self-cleaning control method for a fresh air system, comprising the following operational steps:

[0098] First, the initial dirt value S of the dustproof unit. x Detection can be performed. For example, a visual inspection module (such as a CCD visual inspection module) can be used to detect and obtain the original dirt value S of the dustproof unit in the fresh air system. x .

[0099] In addition, it is also necessary to record the original dirt distribution area value S corresponding to the nth dirt distribution area. xn .

[0100] The entire detection area of ​​the dustproof unit is divided into m local areas. The m-th local area is located at the center of the dustproof unit, and the other local areas are distributed along the entire circumference of the m-th local area. The local initial dirt value S of the dustproof unit is... xn Let be the dirt value of the nth local area on the dustproof unit; where n ≤ m, and n and m are both positive integers.

[0101] like Figure 5As shown, the entire detection area of ​​the dustproof unit is divided into 9 local areas. The 9th local area is located at the center of the dustproof unit, and the other local areas are distributed along the entire circumference of the 9th local area. The local initial dirt value S of the dustproof unit. x1 S x2 S x3 S x4 S x5 S x6 S x7 and S x8 These are the dirt values ​​for the 1st, 2nd, 3rd, 4th, 5th, 6th, 7th, and 8th local areas on the dustproof unit.

[0102] The entire detection area of ​​the dustproof unit is the area where the corresponding air inlet is located.

[0103] The original dirt value S of the dustproof unit is measured by a visual inspection module. x The detection time interval is T1. T1 can be, for example, 2 hours or longer.

[0104] like Figure 1 As shown, in the initial state, that is, at the beginning, the time variable T x The initial dirt value S of the dustproof unit is 0. x S0;

[0105] Secondly, the original dirt value S of the dustproof unit in the fresh air system x The self-cleaning mode for cleaning the dustproof unit is determined by comparing it with a preset dirt level threshold.

[0106] Specifically, the dirtiness thresholds can be defined as S0, S1, S2, and S3. For example... Figure 6a , Figure 6b , Figure 6c and Figure 6d As shown, S0 can be, for example, a ratio of 20% to the total area of ​​the dirty area and the total area of ​​all detection areas of the dustproof unit; S1 can be, for example, a ratio of 40% to the total area of ​​the dirty area and the total area of ​​all detection areas of the dustproof unit; S2 can be, for example, a ratio of 60% to the total area of ​​the dirty area and the total area of ​​all detection areas of the dustproof unit; and S3 can be, for example, a ratio of 80% to the total area of ​​the dirty area and the total area of ​​all detection areas of the dustproof unit.

[0107] The original dirt level S of the dustproof unit in the fresh air system x Compare with the soiling thresholds S0, S1, S2 and S3.

[0108] like Figure 2 As shown, if S1 < Sx If <S2, then the first self-cleaning mode is activated, and the original dirt distribution area value S corresponding to the nth dirt distribution area is recorded. xn Furthermore, the communication module also sends a notification to the user's mobile terminal (such as a mobile phone, watch, tablet, computer, etc.) indicating that the dustproof unit has reached the level of dirtiness in step S1, in order to inform the user of the degree of dirtiness of the dustproof unit.

[0109] like Figure 3 As shown, if S2≤S x If <S3, then the second self-cleaning mode is activated, and the original dirt distribution area value S corresponding to the nth dirt distribution area is recorded. xn Furthermore, the communication module also sends a notification to the user's mobile terminal (such as a mobile phone, watch, tablet, computer, etc.) indicating that the dustproof unit has reached the S2 level of dirtiness, in order to inform the user of the degree of dirtiness of the dustproof unit.

[0110] like Figure 4 As shown, if S x If S3 is greater than or equal to 3, then the third self-cleaning mode is activated, and the original dirt distribution area value S corresponding to the nth dirt distribution area is recorded. xn Furthermore, the communication module also sends a notification to the user's mobile terminal (such as a mobile phone, watch, tablet, computer, etc.) indicating that the dustproof unit has reached the S2 level of dirtiness, in order to inform the user of the degree of dirtiness of the dustproof unit.

[0111] Among them, the third self-cleaning mode has a higher degree of cleaning than the second self-cleaning mode, and the second self-cleaning mode has a higher degree of cleaning than the first self-cleaning mode.

[0112] In other words, the initial dirt value S of the dustproof unit x When the temperature is between S1 and S2, the dustproof unit is lightly soiled, so the first self-cleaning mode, which requires less cleaning, can be used for self-cleaning; the initial soiling value S of the dustproof unit is... x When the dirt level is between S2 and S3, the dustproof unit is moderately dirty, so the second self-cleaning mode with a moderate level of cleanliness can be used for self-cleaning; the original dirt value S of the dustproof unit... x When the value is greater than S3, the dustproof unit is heavily soiled, so the third self-cleaning mode, which has a higher degree of cleanliness, can be used for self-cleaning.

[0113] More specifically, the first self-cleaning mode includes blowing, dust removal, and drying operations on the dustproof unit. In the first self-cleaning mode, the airflow rate for the blowing operation is F1, the rotation speed for the dust removal operation is G1, and the hot airflow rate for the drying operation is H1.

[0114] The second self-cleaning mode comprises a foam cleaning operation, a dust removal operation and a drying operation performed on the dust-proof unit. In the second self-cleaning mode, the air volume of the foam cleaning operation is P1, the rotating speed of the dust removal operation is G2, and the hot air volume of the drying operation is H2.

[0115] The third self-cleaning mode comprises a foam cleaning operation, a dust removal operation and a drying operation performed on the dust-proof unit. In the third self-cleaning mode, the air volume of the foam cleaning operation is P2, the rotating speed of the dust removal operation is G3, and the hot air volume of the drying operation is H3.

[0116] Wherein, F1 < P1 < P2, H1 < H2 < H3, G1 < G2 < G3.

[0117] In a specific embodiment, F1 is 15m 3 / min, P1 is 25m 3 / min, and P2 is 40m 3 / min. H1 is 20m 3 / min, H2 is 30m 3 / min, and H2 is 40m 3 / min.

[0118] As Figure 2 shown, when the first self-cleaning mode is executed, one end of the dust-proof unit is wound and the other end is unwound, so that the dust-proof unit can move towards the cleaning module to facilitate the cleaning module to execute the above cleaning operation steps. After each self-cleaning mode is finished, one end of the dust-proof unit is unwound and the other end is wound, so that the dust-proof unit moves back to the original position in a reverse direction.

[0119] After the dust-proof unit moves back to the original position in the reverse direction, it indicates that the self-cleaning operation of the dust-proof unit is finished, so the dirt value S of the dust-proof unit after self-cleaning of the dust-proof unit can be x ' is compared with a preset dirt degree threshold, and then whether to execute a disinfection operation and whether to enter a next round of self-cleaning operation, that is, the third step described below, is determined.

[0120] Thirdly, according to the executed self-cleaning mode and / or the comparison result between the dirt value S x ' of the dust-proof unit after the corresponding self-cleaning mode is executed and the preset dirt degree threshold, whether to perform a disinfection operation on the dust-proof unit and whether to replace the self-cleaning mode are determined.

[0121] Specifically, as Figure 2 and Figure 3 shown, after the first self-cleaning mode and the second self-cleaning mode are executed, according to the dirt value S xThe result of comparing the level of dirt with a preset threshold determines whether to disinfect the dustproof unit and whether to switch to the self-cleaning mode. For example... Figure 3 As shown, after executing the third self-cleaning mode, the dustproof unit is directly disinfected.

[0122] like Figure 2 As shown, after executing the first self-cleaning mode, the dirt value S of the dustproof unit after executing the first self-cleaning mode is obtained. x '. The dirt level S of the dustproof unit x 'Compare with the dirtiness thresholds S0, S1, S2, and S3. If S...' x If S ≤ S0, then the disinfection operation is initiated; if S0 < S x If '<S2, then the self-cleaning mode will be changed to the second self-cleaning mode.'

[0123] like Figure 3 As shown, after executing the second self-cleaning mode, the dirt value S of the dustproof unit after executing the second self-cleaning mode was also obtained. x '. The dirt level S of the dustproof unit x 'Compare with the dirtiness thresholds S0, S1, S2, and S3. If S...' x If S ≤ S0, then the disinfection operation is initiated; if S0 < S x If <S2, the self-cleaning mode will be changed to the third self-cleaning mode.

[0124] like Figure 4 As shown, after executing the third self-cleaning mode, the disinfection operation is initiated directly. This is because if the third self-cleaning mode is executed, the default cleaning parameters are already sufficient to clean the dustproof unit, thus eliminating the need to further check the dirt level S of the dustproof unit after executing the corresponding self-cleaning mode. x You can proceed with the disinfection process directly.

[0125] Fourth, when disinfecting the dustproof unit, the local original dirt value S of the dustproof unit should be set. xn The disinfection mode for disinfecting the dustproof unit is determined by comparing it with a preset dirt level threshold.

[0126] like Figure 1 As shown, and please refer to Figure 2 , Figure 3 and Figure 4 Obtain the local original dirt value S of the dustproof unit. xn It is compared with a preset threshold for dirtiness. If S xn If S < S1, then the first disinfection mode is activated; if S xn If the value is ≥S1, then the second disinfection mode will be activated.

[0127] The first disinfection mode includes disinfecting the nth dirty area on the dustproof unit, with a disinfection time of T. sd =T a T a For example, it could be 30 minutes. The second disinfection mode includes disinfecting the nth, (n-1)th, (n+1)th, and mth dirt distribution areas on the dustproof unit, with a disinfection time of T. sd =2T a T a For example, it could be 30 minutes.

[0128] like Figure 7 As shown, the local original dirt value S corresponding to the first local area of ​​the dustproof unit is obtained. x1 It is compared with a preset threshold for dirtiness. If S x1 If S < S1, then the first local area is disinfected for 30 minutes; if S x1 If ≥S1, then in addition to disinfecting the first local area, the second and eighth local areas adjacent to the first local area and the ninth local area located in the center also need to be disinfected. The disinfection time for the above four local areas is 60 minutes.

[0129] In other words, in disinfection mode, only the local original dirt value S is considered. x1 Compared to S1, the main consideration is that in the first self-cleaning mode, the overall dirt level of the dustproof unit is not high, so there is no need to waste data on excessive cleaning and disinfection; while in the second and third self-cleaning modes, the overall dirt level of the dustproof unit is higher, generally exceeding that of S1. Therefore, the cleaning mode will become enhanced cleaning, and disinfection will help the system save energy and protect the environment, thereby increasing its value.

[0130] Finally, after the disinfection mode ends, determine whether the time condition has been triggered. If so, repeat the above steps.

[0131] Specifically, such as Figure 1 As shown, and please refer to Figure 2 , Figure 3 and Figure 4 After the disinfection mode ends, the time variable T is set... x Set it to 0, and set the original dirt value S of the dustproof unit to 0. x It is S0.

[0132] The communication module sends signals to the user's mobile terminal indicating that the corresponding self-cleaning mode and the corresponding disinfection mode have been completed. For example, if the first self-cleaning mode is executed, a signal indicating that the first self-cleaning mode has been completed is sent to the user; if the second self-cleaning mode is executed, a signal indicating that the second self-cleaning mode has been completed is sent to the user; and if the third self-cleaning mode is executed, a signal indicating that the third self-cleaning mode has been completed is sent to the user.

[0133] The time variable T x After adding 1, check T. x If +1 is greater than or equal to T1, then the original dirt value S of the dustproof unit is applied. x Perform the detection step; if not, return the time variable T. x The step of adding 1.

[0134] Figure 8- Figure 13 As shown, according to a second aspect of the present invention, the present invention provides a self-cleaning control device for a fresh air system, which can perform the self-cleaning control method for a fresh air system described above.

[0135] like Figure 10 and Figure 11 As shown, the self-cleaning control device of the fresh air system of the present invention includes a visual detection module 330, a disinfection module 320, a cleaning module 310 and a control module 340. The visual detection module 330 and the disinfection module 320 are respectively disposed on both sides of the dustproof unit 100 of the fresh air system, and the cleaning module 310 is disposed on the dustproof unit 100.

[0136] like Figure 8a , Figure 8b and Figure 9 As shown, the self-cleaning control device of the fresh air system of the present invention further includes a first housing 210 and a second housing 220, which are sealed together to form a receiving cavity. The visual detection module 330, disinfection module 320, cleaning module 310, control module 340, and dust collection module 314 are all disposed inside the first housing 210, as shown. Figure 10 As shown.

[0137] like Figure 11 As shown, an air inlet 211 is provided on one side (outer side) of the first housing 210, and the disinfection module 320 is located inside the air inlet 211; the air inlet 211 has a circular structure, and the area on the dustproof unit 100 corresponding to this air inlet is the entire detection area 101 of the dustproof unit. Figure 11 As shown, for ease of understanding, the entire detection area 101 of the dustproof unit is shown in dashed lines on the dustproof unit 100.

[0138] The second housing 220 is provided with an air outlet 221 that is opposite to the air inlet 211, and the air outlet 221 is connected to the blower 222.

[0139] The visual inspection module 330 is configured to obtain the initial dirt value S of the dustproof unit 100 in the fresh air system. x The local initial dirt value S of dustproof unit 100 xn And the dirt value S of the dustproof unit 100 after the corresponding self-cleaning mode is executed. x ', and send them to the control module 340 respectively.

[0140] The visual inspection module 330 can be the CCD visual inspection module mentioned above, which inspects the dustproof unit 100 at time intervals of T1.

[0141] Control module 340 is configured to measure the initial dirt level S of dustproof unit 100 in the fresh air system. x The self-cleaning mode for cleaning the dustproof unit 100 is determined by comparing it with a preset dirt level threshold.

[0142] The levels of dirt can be defined as S0, S1, S2, and S3. For example... Figure 6a , Figure 6b , Figure 6c and Figure 6d As shown, S0 can be, for example, a ratio of 20% to the total area of ​​the dirty area and all detection areas 101 of the dustproof unit; S1 can be, for example, a ratio of 40% to the total area of ​​the dirty area and all detection areas 101 of the dustproof unit; S2 can be, for example, a ratio of 60% to the total area of ​​the dirty area and all detection areas 101 of the dustproof unit; and S3 can be, for example, a ratio of 80% to the total area of ​​the dirty area and all detection areas 101 of the dustproof unit.

[0143] Furthermore, the control module 340 is also configured to adjust the dustproof unit 100 based on the executed self-cleaning mode and / or the dirt value S after the corresponding self-cleaning mode has been executed. x The result is compared with the preset dirt level threshold to determine whether to disinfect the dustproof unit 100 and whether to switch to the self-cleaning mode.

[0144] Specifically, the control module 340 receives the original dirt value S from the dustproof unit 100 in the fresh air system. x Compare with the soiling thresholds S0, S1, S2 and S3.

[0145] like Figure 2 As shown, if S1 < S xIf <S2, then the control module 340 sends a signal to the cleaning module 310 to start the first self-cleaning mode, and the control module 340 records the original dirt distribution area value S corresponding to the nth dirt distribution area. xn .

[0146] In addition, the communication module integrated in the control module 340 also sends the step of the dustproof unit 100 reaching the level of dirtiness S1 to the user's mobile terminal (such as mobile phone, watch, tablet, computer, etc.) to notify the user of the level of dirtiness of the dustproof unit.

[0147] like Figure 3 As shown, if S2≤S x If <S3, then the control module 340 sends a signal to the cleaning module 310 to start the second self-cleaning mode, and the control module 340 records the original dirt distribution area value S corresponding to the nth dirt distribution area. xn .

[0148] In addition, the communication module integrated in the control module 340 also sends the step S2, indicating that the dustproof unit has reached a certain level of dirtiness, to the user's mobile terminal (such as a mobile phone, watch, tablet, computer, etc.) to notify the user of the degree of dirtiness of the dustproof unit.

[0149] like Figure 4 As shown, if S x If S3 is greater than or equal to 3, then the control module 340 sends a message to the cleaning module 310 to start the third self-cleaning mode, and the control module 340 records the original dirt distribution area value S corresponding to the nth dirt distribution area. xn .

[0150] In addition, the communication module integrated in the control module 340 also sends the step S2, indicating that the dustproof unit has reached a certain level of dirtiness, to the user's mobile terminal (such as a mobile phone, watch, tablet, computer, etc.) to notify the user of the degree of dirtiness of the dustproof unit.

[0151] like Figure 10 and Figure 11 As shown, the cleaning module 310 includes a blowing module 311, a dust removal module 312, a drying module 313, and a dust collection module 314. The blowing module 311 is connected to the upper part of the drying module 313 and is located at the upper end of the dustproof unit 100. The drying module 313 is disposed on one or both sides of the dustproof unit 100. The dust removal module 312 is provided with a groove 3131 for the dustproof unit 100 to pass through.

[0152] Wherein, the blowing cleaning module 311, the dust removal module 312 and the drying module 313 are all in communication connection with the control module 340. The blowing cleaning module 311 is configured to blow air to the dust prevention unit 100 with an air volume F1, perform foam cleaning on the dust prevention unit 100 with an air volume P1, or perform foam cleaning on the dust prevention unit 100 with an air volume P2. The drying module 313 is configured to dry the dust prevention unit 100 with hot air volumes H1, H2 or H3. The dust removal module 312 is configured to remove dust from the dust prevention unit 100 at rotation speeds G1, G2 or G3.

[0153] Wherein, F1<P1<P2, H1<H2<H3, G1<G2<G3.

[0154] Therefore, when the blowing cleaning module 311, the dust removal module 312 and the drying module 313 receive a signal for starting a first self-cleaning mode sent by the control module 340, the blowing cleaning module 311 performs a blowing operation on the dust prevention unit 100 according to the air volume F1, the dust removal module 312 performs a dust removal operation on the dust prevention unit 100 according to the rotation speed G1, and the drying module 313 performs a drying operation on the dust prevention unit 100 according to the hot air volume H1.

[0155] When the blowing cleaning module 311, the dust removal module 312 and the drying module 313 receive a signal for starting a second self-cleaning mode sent by the control module 340, the blowing cleaning module 311 performs a foam cleaning operation on the dust prevention unit 100 according to the air volume P1, the dust removal module 312 performs a dust removal operation on the dust prevention unit 100 according to the rotation speed G2, and the drying module 313 performs a drying operation on the dust prevention unit 100 according to the hot air volume H3.

[0156] When the blowing cleaning module 311, the dust removal module 312 and the drying module 313 receive a signal for starting a third self-cleaning mode sent by the control module 340, the blowing cleaning module 311 performs a foam cleaning operation on the dust prevention unit 100 according to the air volume P2, the dust removal module 312 performs a dust removal operation on the dust prevention unit 100 according to the rotation speed G3, and the drying module 313 performs a drying operation on the dust prevention unit 100 according to the hot air volume H4.

[0157] In a specific embodiment, F1 is 15m 3 / min, P1 is 25m 3 / min, P2 is 40m 3 / min. H1 is 20m 3 / min, H2 is 30m 3 / min, H2 is 40m 3 / min.

[0158] As Figure 10As shown, the cleaning module 310 also includes a dust collection module 314. The dust collection module 314 is located at the lower end of the dustproof unit 100 and can cover the corresponding area at the lower end of the blowing module 311, the dust removal module 312 and the drying module 313. The dust collection module 314 is used to collect dust, foam and other dust and sewage blown off by the blowing module 311, the dust removal module 312 and the drying module 313.

[0159] like Figure 10 As shown, the dust collection module 314 has a funnel-shaped structure. An opening and closing device 315 is provided at the bottom of the dust collection module 314. The opening and closing device 315 is designed to open when the weight of the dust collected in the dust collection module 314 reaches a threshold. For example, the opening and closing device 315 is equipped with a spring pin. If the weight of the dust reaches the weight limit that the spring pin can bear, the spring pin fails, and the opening and closing device 315 opens. Figure 12b As shown, the dust in the dust collection module 314 is collected into an external recycling device through the collection hole 212 on the first housing 210.

[0160] Alternatively, it can be conceivable that the opening and closing device 315 can be controlled by the control module 340. For example, when one or more of the blowing and washing module 311, dust removal module 312 and drying module 313 are turned on, the control module 340 controls the opening and closing device 315 to open; otherwise, the control module 340 controls the opening and closing device 315 to close.

[0161] The cleaning module 310 is configured to execute a corresponding self-cleaning mode, and the disinfection module 320 is configured to execute a corresponding disinfection mode. For example... Figure 11 and Figure 13 As shown, the disinfection module 320 includes multiple UV lamps, one of which is located in the middle position, and the remaining UV lamps are equally spaced around the UV lamp in the middle position. Each UV lamp corresponds to one of the dirt distribution areas of the dustproof unit 100. Each UV lamp is connected to the control module 340 and is independently controlled by the control module 340.

[0162] Therefore, it is understandable that when the entire detection area 101 of the dustproof unit is divided into multiple local areas, each corresponds one-to-one with the UV lamp setting, thus facilitating thorough disinfection. Please refer to... Figure 11 and Figure 5 The ninth local area of ​​the dustproof unit 100 corresponds to the UV lamp located in the middle position in the disinfection module 320. The other eight local areas of the dustproof unit 100 correspond to the other eight UV lamps circumferentially opposite the UV lamp located in the middle position in the disinfection module 320.

[0163] Therefore, it is understandable that if the UV lamps in the disinfection module 320 adopt a different distribution method, the division method of the entire detection area 101 of the dustproof unit can be adjusted accordingly.

[0164] The control module 340 is also configured to measure the local initial dirt value S of the dustproof unit 100. xn The disinfection mode for disinfecting the dustproof unit 100 is determined by comparing it with a preset dirt level threshold.

[0165] Specifically, such as Figure 2 As shown, after the cleaning module 310 executes the first self-cleaning mode, the vision detection module 330 obtains the dirt value S of the dustproof unit after executing the first self-cleaning mode. x And send it to the control module 340. The control module 340 sends the dirt value S of the dustproof unit. x 'Compare with the dirtiness thresholds S0, S1, S2, and S3. If S...' x If S0 ≤ S0, then the control module 340 sends a command to the disinfection module 320 to start the disinfection operation; if S0 < S x If '<S2, then the control module 340 sends an instruction to the cleaning module 310 to change the self-cleaning mode to the second self-cleaning mode.

[0166] like Figure 3 As shown, after the cleaning module 310 executes the second self-cleaning mode, the vision detection module 330 obtains the dirt value S of the dustproof unit after executing the second self-cleaning mode. x And send it to the control module 340. The control module 340 sends the dirt value S of the dustproof unit. x Compare with the dirtiness thresholds S0, S1, S2, and S3. If S... x If S0 ≤ S0, then the control module 340 sends a command to the disinfection module 320 to start the disinfection operation; if S0 < S x If '<S2, then send an instruction to the cleaning module 310 to change the self-cleaning mode to the third self-cleaning mode.'

[0167] like Figure 4 As shown, after the cleaning module 310 executes the third self-cleaning mode, the control module 340 directly sends a command to the disinfection module 320 to start the disinfection operation. This is because if the third self-cleaning mode is executed, the default cleaning parameters are already sufficient to clean the dustproof unit, thus eliminating the need to further detect the dirt value S of the dustproof unit after executing the corresponding self-cleaning mode. x You can proceed with the disinfection process directly.

[0168] When disinfecting the dustproof unit 100, the control module 340 sets the local original dirt value S of the dustproof unit 100. xnThe disinfection mode for disinfecting the dustproof unit 100 is determined by comparing it with a preset dirt level threshold.

[0169] like Figure 1 As shown, and please refer to Figure 2 , Figure 3 and Figure 4 The control module 340 acquires the local original dirt value S of the dustproof unit 100. xn It is compared with a preset threshold for dirtiness. If S xn If S1 < S1, then the control module 340 sends a command to the disinfection module 320 to start the first disinfection mode; if S xn If S1 is greater than or equal to 1, then the control module 340 sends a command to the disinfection module 320 to start the second disinfection mode.

[0170] The first disinfection mode includes disinfection module 320 disinfecting the nth dirty distribution area on dustproof unit 100, with a disinfection time of T. sd =T a T a For example, it could be 30 minutes. The second disinfection mode includes disinfection module 320 disinfecting the nth, (n-1)th, (n+1)th, and mth dirt distribution areas on the dustproof unit 100, with a disinfection time of T. sd =2T a T a For example, it could be 30 minutes.

[0171] like Figure 7 As shown, the control module 340 acquires the local original dirt value S corresponding to the first local area of ​​the dustproof unit. x1 It is compared with a preset threshold for dirtiness. If S x1 If S < S1, then the first UV lamp in the disinfection module 320 is activated, disinfecting the first localized area for 30 minutes. If S x1 If ≥S1, then in addition to the first UV lamp in the disinfection module 320 being activated to disinfect the first local area, the second and eighth UV lamps adjacent to the first UV lamp in the disinfection module 320 are also activated to disinfect the second and eighth local areas adjacent to the first local area, and the ninth UV disinfection lamp located in the center of the disinfection module 320 is activated to disinfect the ninth local area located in the center. The disinfection time for the above four local areas is 60 minutes.

[0172] The control module 340 is also configured to determine whether a time condition is triggered after the disinfection mode ends.

[0173] Specifically, such as Figure 1 As shown, and please refer to Figure 2 , Figure 3 and Figure 4 After the disinfection module 320 completes the disinfection mode, the control module 340 sets the time variable T. x Set the value to 0, and set the original dirt value S of the dustproof unit 100 to 0. x It is S0.

[0174] The communication module integrated in the control module 340 sends signals to the user's mobile terminal indicating that the corresponding self-cleaning mode and the corresponding disinfection mode have been completed. For example, if the first self-cleaning mode is executed, the communication module integrated in the control module 340 sends a signal indicating that the first self-cleaning mode has been completed; if the second self-cleaning mode is executed, the communication module integrated in the control module 340 sends a signal indicating that the second self-cleaning mode has been completed; and if the third self-cleaning mode is executed, the communication module integrated in the control module 340 sends a signal indicating that the third self-cleaning mode has been completed.

[0175] Control module 340 will control the time variable T x After adding 1, check T. x If +1 is greater than or equal to T1, then the visual inspection module 330 performs an inspection of the original dirt value S of the dustproof unit. x Perform the detection step; if not, return the time variable T. x The step of adding 1.

[0176] like Figure 10 and Figure 11 As shown, the self-cleaning control device of the fresh air system of the present invention further includes a moving module 350. The moving module 350 includes a first rotating shaft 351 and a second rotating shaft 353 respectively disposed on both sides of the dustproof unit 100. The dustproof unit 100 can be wound around the first rotating shaft 351 or the second rotating shaft 353. The first rotating shaft 351 is connected to a first motor 352, and the first motor 352 can cause the first rotating shaft 351 to wind or unwind when it rotates forward or reverse. The second rotating shaft 353 is connected to a second motor 354, and the second motor 354 can cause the second rotating shaft 353 to wind or unwind when it rotates forward or reverse. Both the first motor 352 and the second motor 354 are communicatively connected to the control module 340.

[0177] When the moving module 350 is configured such that the first rotating shaft 351 is wound and the second rotating shaft 353 is unwound, the dustproof unit 100 moves toward the direction closer to the cleaning module 310; when the first rotating shaft 351 is unwound and the second rotating shaft 353 is wound, the dustproof unit 100 moves toward the direction away from the cleaning module 310.

[0178] like Figure 10As shown, when the dustproof unit 100 needs to perform self-cleaning, the control module 340 sends a forward rotation signal to the first motor 352 and a reverse rotation signal to the second motor 354. The first rotating shaft 351 then winds up, and the second rotating shaft 353 unwinds, causing the dustproof unit 100 to move towards the cleaning module 310, allowing for cleaning and disinfection operations. After the cleaning and disinfection operations are completed, the control module 340 sends a reverse rotation signal to the first motor 352 and a forward rotation signal to the second motor 354. The first rotating shaft 351 then unwinds, and the second rotating shaft 353 winds up, causing the dustproof unit 100 to move away from the cleaning module 310 and return to its original position.

[0179] According to a third aspect of the present invention, the present invention also provides a fresh air system, which includes the self-cleaning control device of the fresh air system described above, and further includes a dustproof unit 100, the dustproof unit including a dustproof net constructed in an elongated strip shape. Figure 11 As shown, the two ends of the dustproof unit 100 are connected to the first rotating shaft 351 and the second rotating shaft 353 respectively, and can be wound around the first rotating shaft 351 and the second rotating shaft 353, and can be unwound from them.

[0180] In addition, the fresh air system of the present invention may also include other components and parts known in the prior art to achieve the necessary functions of the fresh air system.

[0181] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A self-cleaning control method for a fresh air system, characterized in that, The following steps are included: The original dirt level S of the dustproof unit in the fresh air system x The self-cleaning mode for cleaning the dustproof unit is determined by comparing it with a preset dirt level threshold. Based on the self-cleaning mode executed and / or based on the dirt value S of the dustproof unit after the corresponding self-cleaning mode was executed. x The result of comparing the dustproof unit with the preset dirt level threshold determines whether to perform a disinfection operation and whether to switch to the self-cleaning mode. When disinfecting the dustproof unit, the local original dirt value S of the dustproof unit is... xn The disinfection mode for disinfecting the dustproof unit is determined by comparing it with a preset dirt level threshold. After the disinfection mode ends, determine whether the time condition has been triggered. If so, repeat the above steps.

2. The self-cleaning control method for a fresh air system according to claim 1, characterized in that, The original dirt level S of the dustproof unit in the fresh air system x Determining the self-cleaning mode for cleaning the dustproof unit by comparing it with a dirt level threshold includes the following sub-steps: The preset dirt level thresholds are S0, S1, S2, and S3; The original dirt level S of the dustproof unit in the fresh air system x Compare with the dirtiness thresholds S0, S1, S2, and S3. If S1 < S x If S2 < S2, then the first self-cleaning mode is activated; if S2 ≤ S x If S < S3, then the second self-cleaning mode is activated; if S x If the value is ≥S3, then the third self-cleaning mode will be activated; The third self-cleaning mode achieves a higher level of cleanliness than the second self-cleaning mode, and the second self-cleaning mode achieves a higher level of cleanliness than the first self-cleaning mode.

3. The self-cleaning control method for a fresh air system according to claim 2, characterized in that, The first self-cleaning mode includes blowing, dust removal and drying operations on the dustproof unit. In the first self-cleaning mode, the air volume of the blowing operation is F1, the rotation speed of the dust removal operation is G1, and the hot air volume of the drying operation is H1. The second self-cleaning mode includes foam cleaning, dust removal and drying operations for the dustproof unit. In the second self-cleaning mode, the air volume for foam cleaning is P1, the rotation speed for dust removal is G2, and the hot air volume for drying is H2. The third self-cleaning mode includes foam cleaning, dust removal and drying operations for the dustproof unit. In the third self-cleaning mode, the air volume for foam cleaning is P2, the rotation speed for dust removal is G3, and the hot air volume for drying is H3. Among them, F1 <P1<P2,H1<H2<H3,G1<G2<G3。 4. The self-cleaning control method for a fresh air system according to claim 2 or 3, characterized in that, Based on the self-cleaning mode executed and / or based on the dirt value S of the dustproof unit after the corresponding self-cleaning mode was executed. x The comparison with a preset dirt level threshold determines whether to disinfect the dustproof unit and whether to change the self-cleaning mode, including the following sub-steps: Obtain the dirt value S of the dustproof unit after executing the corresponding self-cleaning mode. x '; Dirt value S x 'Compare with the dirt level thresholds S0, S1, S2, and S3. If the first self-cleaning mode is executed and S...' x If S0 ≤ S0, then the disinfection operation is initiated; if the first self-cleaning mode is executed and S0 < S x If '<S2, then the self-cleaning mode will be changed to the second self-cleaning mode;' If the second self-cleaning mode is executed and S x If S0 ≤ S0, then the disinfection operation is initiated; if the second self-cleaning mode is executed and S0 < S x If '<S2, then the self-cleaning mode will be changed to the third self-cleaning mode;' If the third self-cleaning mode is executed, the disinfection operation will be started directly.

5. The self-cleaning control method for a fresh air system according to claim 2 or 3, characterized in that, The entire detection area of ​​the dustproof unit is divided into m local areas, wherein the mth local area is located at the center of the dustproof unit, and the other local areas are distributed along the entire circumference of the mth local area. The local initial dirt value S of the dustproof unit xn Let be the dirt value of the nth local area on the dustproof unit; where n ≤ m, and n and m are both positive integers.

6. The self-cleaning control method for a fresh air system according to claim 5, characterized in that, When disinfecting the dustproof unit, the local original dirt value S of the dustproof unit is... xn The disinfection mode for disinfecting the dustproof unit is determined by comparing it with a preset dirt level threshold, including the following sub-steps: If S xn If S < S1, then the first disinfection mode is activated; if S xn If S1 is greater than or equal to 1, then the second disinfection mode will be activated. The first disinfection mode includes disinfecting the nth dirty area on the dustproof unit, with a disinfection time of T. a ; The second disinfection mode includes disinfecting the nth, (n-1)th, (n+1)th, and mth dirt distribution areas on the dustproof unit, with a disinfection time of 2T. a .

7. The self-cleaning control method for a fresh air system according to claim 6, characterized in that, The original dirt level S of the dustproof unit in the fresh air system. x Before comparing with a preset dirt level threshold, the following steps are also included: The initial dirt value S of the dustproof unit x Conduct testing; Record the local original dirt value S corresponding to the nth dirt distribution area. xn ; Among them, the original dirt value S of the dustproof unit x The detection time interval is T1.

8. The self-cleaning control method for a fresh air system according to claim 7, characterized in that, In the initial state, the time variable T x The initial dirt value S of the dustproof unit is 0. x S0; After the disinfection mode ends, determining whether the time condition has been triggered includes the following sub-steps: After the disinfection mode ends, set the time variable T. x Set it to 0, and set the original dirt value S of the dustproof unit to 0. x S0; Send the user signals that the self-cleaning mode and the disinfection mode have been completed; The time variable T x After adding 1, check T. x If +1 is greater than or equal to T1, then the original dirt value S of the dustproof unit is applied. x Perform the detection step; if not, return the time variable T. x The step of adding 1.

9. The self-cleaning control method for a fresh air system according to claim 8, characterized in that, The original dirt level S of the dustproof unit in the fresh air system x When compared with the soiling thresholds S0, S1, S2, and S3, If S1 < S x <S2, also execute the step of sending the user the degree of dirtiness of the dustproof unit to S1; If S2≤S x <S3, also execute the step of sending the user the degree of dirtiness of the dustproof unit to S2; If S x ≥S3, and also perform the step of sending the user the dustproof unit's level of dirtiness to S1.

10. The self-cleaning control method for a fresh air system according to claim 2 or 3, characterized in that, When each cleaning mode is activated, one end of the dustproof unit is wound up and the other end is unwound, so that the dustproof unit moves toward the cleaning module; after each cleaning mode is completed, the dustproof unit moves back to its original position.

11. A self-cleaning control device for a fresh air system, characterized in that, It includes a visual inspection module, a disinfection module, a cleaning module, and a control module. The visual inspection module and the disinfection module are respectively installed on both sides of the dustproof unit of the fresh air system, and the cleaning module is installed on the dustproof unit. The visual inspection module is configured to obtain the original dirt value S of the dustproof unit in the fresh air system. x The local initial dirt value S of the dustproof unit xn And the dirt value S of the dustproof unit after the corresponding self-cleaning mode was executed. x ', and send them to the control module respectively; The control module is configured to measure the initial dirt level S of the dustproof unit in the fresh air system. x The self-cleaning mode for cleaning the dustproof unit is determined by comparing it with a preset dirt level threshold. The control module is also configured to adjust the dustproof unit's dirt level S based on the executed self-cleaning mode and / or the dirt value S of the dustproof unit after the corresponding self-cleaning mode has been executed. x The result of comparing the dustproof unit with the preset dirt level threshold determines whether to perform a disinfection operation and whether to switch to the self-cleaning mode. The control module is also configured to set the local initial dirt value S of the dustproof unit. xn The disinfection mode for disinfecting the dustproof unit is determined by comparing it with a preset dirt level threshold. The cleaning module is configured to execute a corresponding self-cleaning mode, and the disinfection module is configured to execute a corresponding disinfection mode. The control module is also configured to determine whether a time condition is triggered after the disinfection mode ends.

12. The self-cleaning control device for a fresh air system according to claim 11, characterized in that, The cleaning module includes a blowing module, a dust removal module, a drying module, and a dust collection module; The blowing and washing module is connected to the upper part of the drying module and is located at the upper end of the dustproof unit; The drying module is located on one or both sides of the dustproof unit; The dust removal module is provided with a groove for the dustproof unit to pass through.

13. The self-cleaning control device for a fresh air system according to claim 12, characterized in that, The blowing and washing module is configured to blow air onto the dustproof unit with an air volume of F1, perform foam cleaning on the dustproof unit with an air volume of P1, or perform foam cleaning on the dustproof unit with an air volume of P2. The drying module is configured to dry the dustproof unit with hot air volume H1, H2 or H3; The dust removal module is configured to remove dust from the dustproof unit at a rotation speed of G1, G2 or G3. Among them, F1 <P1<P2,H1<H2<H3,G1<G2<G3。 14. The self-cleaning control device for a fresh air system according to claim 12 or 13, characterized in that, The cleaning module also includes a dust collection module, which is located at the lower end of the dustproof unit and can cover the lower areas corresponding to the blowing and washing module, the dust removal module and the drying module. The dust collection module is constructed in a funnel shape, and an opening and closing device is provided at the bottom of the dust collection module. The opening and closing device is designed to open when the weight of dust collected in the dust collection module reaches a threshold.

15. The self-cleaning control device for a fresh air system according to any one of claims 11-13, characterized in that, The disinfection module includes multiple UV lamps, with one UV lamp located in the middle position and the remaining UV lamps arranged at equal intervals around the UV lamp in the middle position. Each UV lamp corresponds to one of the dirt distribution areas of the dustproof unit. Each UV lamp is connected to the control module and is independently controlled by the control module.

16. The self-cleaning control device for a fresh air system according to any one of claims 11-13, characterized in that, It also includes a moving module, which includes a first rotating shaft and a second rotating shaft respectively disposed on both sides of the dustproof unit, and the dustproof unit can be wound on the first rotating shaft or the second rotating shaft; The moving module is configured such that when the first rotating shaft is wound and the second rotating shaft is unwound, the dustproof unit moves toward the direction closer to the cleaning module; when the first rotating shaft is unwound and the second rotating shaft is wound, the dustproof unit moves toward the direction away from the cleaning module.

17. The self-cleaning control device for a fresh air system according to claim 14, characterized in that, It also includes a first housing and a second housing, which are sealed together. The visual inspection module, the disinfection module, the cleaning module, the control module, and the dust collection module are all located inside the first housing.

18. The self-cleaning control device for a fresh air system according to claim 17, characterized in that, An air inlet is provided on one side of the first housing, and the disinfection module is located inside the air inlet; an air outlet is provided on the second housing opposite to the air inlet, and the air outlet is connected to a blower.

19. The self-cleaning control device for a fresh air system according to claim 17, characterized in that, The first housing is also provided with a collection hole connected to the opening and closing device.

20. The self-cleaning control device for a fresh air system according to claim 11, characterized in that, It also includes a communication module, which is integrated into the control module and is configured to send signals to the mobile terminal.

21. A fresh air system, comprising the self-cleaning control device according to any one of claims 11-20, characterized in that, It also includes a dustproof unit, which includes a dustproof net structured as a long strip.

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