Collaborative control method of cleaning system and fresh air blower based on Internet of Things

Abstract

The present application relates to the field of intelligent control technology, and in particular to a collaborative control method for a cleaning system and a fresh air fan based on the Internet of Things. The cleaning system includes a dust monitoring system and a spraying system. The dust monitoring system includes a first dust sensor, a second dust sensor, and an air quality sensor. The first dust sensor is installed on the outer wall of a building, and the second dust sensor is installed on the side of the fresh air fan filter that is close to the indoor space. The filter is installed at the outdoor air inlet. The spraying system is installed on the top of the outer wall. The fresh air fan and the air quality sensor are installed indoors in the building. The dust monitoring system, the spraying system, and the fresh air fan are connected to the same network. The method includes: controlling the operation of the spraying system according to the environmental data monitored by the dust monitoring system and the working mode of the fresh air fan. The present invention reduces the amount of dust in the environment that enters the fresh air fan, reduces the number of times the fresh air fan needs to be cleaned, and maintains good indoor air quality.

Description

Technical Field

[0001] The present application relates to the field of intelligent control technology, and in particular to a collaborative control method of a cleaning system and a fresh air blower based on the Internet of Things. Background Art

[0002] Construction sites and some roads are generally very dusty, causing dust accumulation in nearby homes and those near these roads. To promote a healthy working environment, office buildings in these areas are equipped with fresh air systems that filter dust and reduce the amount of dust inhaled by employees. However, if the air contains a high concentration of dust particles, the continuous exhaust and return air flow can cause dust and dirt to accumulate in the fresh air ducts, even with filters in place. If not cleaned promptly, this not only affects the proper functioning of the fresh air system but also causes secondary pollution to the indoor air. Therefore, in dusty environments, fresh air fans need to be cleaned frequently. However, frequent cleaning not only reduces the user experience but also increases the burden on consumers. Furthermore, some consumers, out of laziness, do not clean their fresh air fans frequently, leading to secondary pollution of the indoor air, which can be detrimental to their health in the long term. Summary of the Invention

[0003] To solve the above-mentioned problems, an embodiment of the present application provides a collaborative control method of a cleaning system and a fresh air fan based on the Internet of Things, so as to reduce the dust in the environment from entering the fresh air fan, make the air drawn into the room by the fresh air fan fresher, reduce the number of times the fresh air fan needs to be cleaned, and maintain good indoor air quality.

[0004] An embodiment of the present application provides a collaborative control method for a cleaning system and a fresh air fan based on the Internet of Things. The cleaning system includes a dust monitoring system and a spray system. The dust monitoring system includes multiple first dust sensors, multiple second dust sensors, and an air quality sensor. The first dust sensor is installed on the outer wall of a building, and the second dust sensor is installed on the side of the filter of the fresh air fan close to the indoor environment. The filter is installed at the outdoor air inlet. The spray system includes multiple water spray devices, each of which is installed on the top of the outer wall. The fresh air fan and the air quality sensor are installed indoors in the building. The dust monitoring system, the spray system, and the fresh air fan are connected to the same network. The method includes:

[0005] When the fresh air fan is in a standby state, if it is detected within a preset time period that the fresh air fan operation mode selected by the user includes a step of drawing outdoor air into the room, the sprinkler system is controlled to enter a standby mode, and the first dust sensor is controlled to enter an operation mode;

[0006] Obtaining a first dust concentration threshold;

[0007] Obtaining the dust concentration monitored by the first dust sensor;

[0008] determining whether the dust concentration monitored by the first dust sensor is greater than the first dust concentration threshold;

[0009] If it is greater than, the sprinkler system is controlled to spray toward the environment around the exterior wall and the dust concentration monitored by the first dust sensor is obtained in real time; when the dust concentration monitored by the first dust sensor is less than the first dust concentration threshold, the fresh air fan is controlled to draw outdoor air into the room, and in the process of the fresh air fan drawing outdoor air into the room, the dust concentration monitored by the second dust sensor and the second dust concentration threshold are obtained; when the dust concentration monitored by the second dust sensor is greater than the second dust concentration threshold, the spraying amount of the sprinkler system is increased;

[0010] When the fresh air fan is in standby mode, if the user is not detected selecting the fresh air fan working mode within a preset time period, the air quality sensor is controlled to enter the working mode, and the indoor air quality monitored by the air quality sensor is obtained in real time. When the indoor air quality does not meet the set conditions, the fresh air fan is controlled to enter the exhaust mode to discharge the indoor air to the outside, and at the same time, the spray system is controlled to spray the environment around the outer wall to reduce dust in the discharged air, and at the same time, the first dust sensor is controlled to enter the working mode, obtain the first dust concentration threshold and obtain the dust concentration monitored by the first dust sensor in real time. When the dust concentration monitored by the first dust sensor is less than the first dust concentration threshold, the outdoor air is drawn into the room.

[0011] Furthermore, the method further comprises:

[0012] When the fresh air fan is in standby mode, if it is detected within a preset time period that the fresh air fan working mode selected by the user does not include the step of drawing outdoor air into the room, the fresh air fan is controlled to operate alone and enter the corresponding working mode.

[0013] Furthermore, the second dust concentration threshold is preset.

[0014] Furthermore, the first dust concentration threshold is greater than the second dust concentration threshold.

[0015] Furthermore, the step of obtaining the first dust concentration threshold value includes:

[0016] sending the dust concentration monitored by the first dust sensor to an electronic device for display;

[0017] When receiving an instruction to set a first dust concentration threshold, opening a first dust concentration threshold setting interface and writing the dust concentration currently monitored by the first dust sensor into the first dust concentration threshold interface, so that the user can adjust the first dust concentration threshold based on the currently monitored dust concentration on the first dust concentration threshold interface to set the first dust concentration threshold;

[0018] After receiving the concentration threshold confirmation instruction, determining whether the adjusted dust concentration threshold is greater than the second dust concentration threshold;

[0019] If it is greater than, the adjusted dust concentration is written into the memory as the first dust concentration threshold;

[0020] If not, a message pops up asking the user to adjust the dust concentration threshold to be greater than the second dust concentration threshold;

[0021] After detecting that the user has read the pop-up information, the first dust concentration threshold setting interface is reloaded, so that the user can make adjustments based on the currently monitored dust concentration on the first dust concentration threshold interface to set the first dust concentration threshold.

[0022] Furthermore, the step of obtaining the dust concentration monitored by the first dust sensor includes:

[0023] Obtaining dust concentration monitored by each first dust sensor;

[0024] sorting the dust concentrations monitored by the first dust sensors to determine the maximum dust concentration;

[0025] The maximum dust concentration is used as the dust concentration monitored by the first dust sensor.

[0026] Furthermore, the step of obtaining the dust concentration monitored by the second dust sensor includes:

[0027] Obtaining dust concentration monitored by each second dust sensor;

[0028] sorting the dust concentrations monitored by the second dust sensors to determine the maximum dust concentration;

[0029] The maximum dust concentration is used as the dust concentration monitored by the second dust sensor.

[0030] Furthermore, after the step of determining whether the dust concentration is greater than the first dust concentration threshold, the method further includes:

[0031] If the dust concentration is less than or equal to the first dust concentration threshold, the process returns to the step of obtaining the dust concentration monitored by the first dust sensor.

[0032] Furthermore, after the step of detecting that the dust concentration detected by the first dust sensor is less than the first dust concentration threshold, the method further includes:

[0033] Control the spraying system to stop spraying.

[0034] Furthermore, the dust monitoring system further includes a pedestrian recognition device, which is used to recognize pedestrians in the environment around the exterior wall. The step of controlling the spraying system to spray the environment around the exterior wall includes:

[0035] determining whether the pedestrian recognition device recognizes a pedestrian;

[0036] If it is recognized, the environment around the exterior wall is sprayed at a first spraying volume during a first time period, and at a second spraying volume during a second time period. The first time period refers to the time from the start of spraying to n seconds, and the second time period refers to the time from the nth second to the end of spraying. The first spraying volume is smaller than the second spraying volume.

[0037] If not identified, the environment around the outer wall is sprayed with the second spray volume.

[0038] The embodiment of the present application provides a collaborative control method of a cleaning system and a fresh air fan based on the Internet of Things, wherein the cleaning system includes a dust monitoring system and a spraying system, wherein the dust monitoring system includes a plurality of first dust sensors, a plurality of second dust sensors and an air quality sensor, wherein the first dust sensor is installed on the outer wall of the building, the second dust sensor is installed on the side of the first filter of the fresh air fan close to the indoor, the first filter is installed at the outdoor air inlet, the spraying system includes a plurality of water spraying devices, the water spraying devices are installed on the top of the outer wall, the fresh air fan and the air quality sensor are installed indoors of the building, and the dust monitoring system , the spray system and the fresh air fan are connected to the same network, and the method includes: when the fresh air fan is in standby state, if it is detected within a preset time that the fresh air fan working mode selected by the user includes the step of extracting outdoor air into the room, then the spray system is controlled to enter the standby mode, and the first dust sensor is controlled to enter the working mode; obtain a first dust concentration threshold; obtain the dust concentration monitored by the first dust sensor; determine whether the dust concentration monitored by the first dust sensor is greater than the first dust concentration threshold; if greater than, control the spray system to spray to the environment around the exterior wall and obtain the dust concentration monitored by the first dust sensor in real time, when the When the dust concentration monitored by the first dust sensor is less than the first dust concentration threshold, the fresh air fan is controlled to draw outdoor air into the room, and in the process of the fresh air fan drawing outdoor air into the room, the dust concentration monitored by the second dust sensor and the second dust concentration threshold are obtained. When the dust concentration monitored by the second dust sensor is greater than the second dust concentration threshold, the spraying volume of the spray system is increased; when the fresh air fan is in standby state, if the user is not detected to select the fresh air fan working mode within a preset time period, the air quality sensor is controlled to enter the working mode, and the indoor air quality detected by the air quality sensor is obtained in real time. When the indoor air quality does not meet the set conditions, the fresh air fan is controlled to enter the exhaust mode to discharge the indoor air to the outside, and at the same time the sprinkler system is controlled to spray the environment around the outer wall to reduce the dust in the exhausted air, and at the same time the first dust sensor is controlled to enter the working mode to obtain the dust concentration monitored by the first dust sensor in real time. When the dust concentration monitored by the first dust sensor is less than the preset threshold, the outdoor air is drawn into the room. In this way, the amount of dust in the environment entering the fresh air fan can be reduced, the air drawn into the room by the fresh air fan can be made fresher, the number of times the fresh air fan needs to be cleaned can be reduced, and the indoor air quality can be kept good. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0040] Figure 1 It is a flow chart of the collaborative control method of the cleaning system and the fresh air blower based on the Internet of Things provided in the embodiment of the present application. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0042] Those skilled in the art will understand that, unless expressly stated otherwise, the singular forms "a", "an", "above", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of this application refers to the presence of features, integers, steps, operations, elements, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, components, and / or groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, "connected" or "coupled" as used herein may include wireless connections or wireless couplings. The term "and / or" used herein includes all or any module and all combinations of one or more associated listed items.

[0043] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and, unless specifically defined as such, will not be interpreted in an idealized or overly formal sense.

[0044] Construction sites and some roads are generally very dusty, leading to dust accumulation in office areas and nearby buildings. To promote a healthy work environment, office buildings in these areas are equipped with fresh air systems that filter dust, reducing the amount of dust inhaled by employees and providing a relatively healthy work environment. However, if the air contains a high concentration of dust particles, the fresh air ducts will accumulate dust and dirt even with filters in place due to the continuous exhaust and return air flow. If not cleaned promptly, this not only affects the proper functioning of the fresh air system but also causes secondary pollution to the indoor air. Therefore, in dusty environments, fresh air fans need to be cleaned frequently. However, frequent cleaning not only reduces the user experience but also increases the burden on consumers. Furthermore, some consumers, out of laziness, do not clean their fresh air fans frequently, leading to secondary pollution of the indoor air, which can be detrimental to their health in the long term. For fresh air fans installed in dusty environments, such as houses around construction sites and houses around roads, this application proposes a collaborative control method of a cleaning system and a fresh air fan based on the Internet of Things, so as to reduce the dust in the environment from entering the fresh air fan, make the air drawn into the room by the fresh air fan fresher, reduce the number of times the fresh air fan needs to be cleaned, and keep the quality of the indoor air in good condition.

[0045] To achieve the above-mentioned purpose, an embodiment of the present application provides a collaborative control method of a cleaning system and a fresh air fan based on the Internet of Things. In this method, the cleaning system includes a dust monitoring system and a spraying system. The dust monitoring system includes multiple first dust sensors, multiple second dust sensors and an air quality sensor. The first dust sensor is installed on the outer wall of the building, and the second dust sensor is installed on the side of the filter of the fresh air fan close to the room. The filter is installed at the outdoor air inlet. The spraying system includes multiple water spraying devices, and the water spraying devices are installed on the top of the outer wall. The fresh air fan and the air quality sensor are installed indoors in the building. The dust monitoring system, the spraying system and the fresh air fan are connected to the same network. The method includes S1-S6, as Figure 1 As shown, steps S1-S6 may be performed by the central controller:

[0046] S1. When the fresh air fan is in a standby state, if it is detected within a preset time period that the fresh air fan operation mode selected by the user includes a step of extracting outdoor air into the room, the sprinkler system is controlled to enter a standby mode, and the first dust sensor is controlled to enter an operation mode;

[0047] S2. Obtaining a first dust concentration threshold;

[0048] S3. Obtaining the dust concentration monitored by the first dust sensor;

[0049] S4. Determine whether the dust concentration monitored by the first dust sensor is greater than the first dust concentration threshold;

[0050] S5. If it is greater than, controlling the sprinkler system to spray toward the environment around the exterior wall and obtaining the dust concentration monitored by the first dust sensor in real time; when the dust concentration monitored by the first dust sensor is less than the first dust concentration threshold, controlling the fresh air blower to draw outdoor air into the room; and in the process of the fresh air blower drawing outdoor air into the room, obtaining the dust concentration monitored by the second dust sensor and the second dust concentration threshold; when the dust concentration monitored by the second dust sensor is greater than the second dust concentration threshold, increasing the spraying volume of the sprinkler system;

[0051] S6. When the fresh air fan is in standby mode, if the user is not detected selecting the fresh air fan working mode within the preset time, the air quality sensor is controlled to enter the working mode, and the indoor air quality monitored by the air quality sensor is obtained in real time. When the indoor air quality does not meet the set conditions, the fresh air fan is controlled to enter the exhaust mode to discharge the indoor air to the outside, and at the same time, the spray system is controlled to spray the environment around the outer wall to reduce dust in the discharged air, and at the same time, the first dust sensor is controlled to enter the working mode, obtain the first dust concentration threshold and obtain the dust concentration monitored by the first dust sensor in real time. When the dust concentration monitored by the first dust sensor is less than the first dust concentration threshold, the outdoor air is drawn into the room.

[0052] The Internet of Things (IoT) refers to the use of various devices and technologies, including information sensors, radio frequency identification (RFID), global positioning systems (GPS), infrared sensors, and laser scanners, to collect real-time data on any object or process that requires monitoring, connection, and interaction. This data includes acoustic, optical, thermal, electrical, mechanical, chemical, biological, and location information. Through various network connections, this enables ubiquitous connectivity between objects and between objects and people, enabling intelligent perception, identification, and management of objects and processes. The IoT is an information carrier based on the internet and traditional telecommunications networks, enabling all independently addressable, common physical objects to form an interconnected network.

[0053] A dust monitoring system monitors various environmental data and can include various types of sensors, such as dust sensors and air quality sensors. Dust sensors are commonly used to sense dust and can detect tiny particles larger than one micron, such as house dust, tobacco smoke, and pollen. Air quality sensors primarily monitor the concentrations of gases such as PM2.5, PM10, oxygen (O2), carbon dioxide (CO2), carbon monoxide (CO), and formaldehyde (CH2O). Since the present invention is targeted at dusty environments, where surrounding buildings are generally relatively low, these buildings are typically low-rise, such as bungalows or low-rise buildings with only a few floors. By installing dust sensors on the exterior walls of buildings, dust concentrations near the buildings can be monitored. By installing dust sensors on the indoor side of the fresh air blower filter, dust concentrations in filtered air (drawn indoors from the outside) can be measured. This allows the sprinkler system to control spraying based on both the outdoor dust concentration and the filtered dust concentration. Because the sprinkler system includes multiple water sprayers, it can spray the environment around the building. It is important to note that the sprinklers should be installed near the outdoor air inlet and exhaust vents of the fresh air system, such as the top of the exterior wall where the outdoor air inlet and exhaust vents are located. This can minimize dust concentration. By connecting the dust monitoring system, sprinkler system, and fresh air fans to the same network, they can be controlled to work together.

[0054] As shown in step S1 above, the fresh air fan is in standby mode, meaning it is powered on but not in operating mode. It only begins operating when it enters operating mode. The fresh air fan's operating modes include fresh air mode, exhaust mode, internal circulation mode, and bypass mode. In fresh air mode, outdoor air is drawn into the room, passing sequentially through the outdoor air inlet, first filter, first ventilation duct, indoor fan, sterilization module, negative ion module, and indoor air outlet. In exhaust mode, indoor air is discharged outdoors, passing sequentially through the indoor air inlet, second filter, formaldehyde removal module, second ventilation duct, outdoor fan, and outdoor air outlet. In internal circulation mode, indoor air is recirculated, filtering and disinfecting the indoor air before being re-introduced into the room. In bypass mode, indoor air is drawn outdoors and then outdoors into the room. Therefore, among the operating modes listed above, the fresh air mode and bypass mode require drawing outdoor air into the room. In other words, the operating mode that includes the step of drawing outdoor air into the room is either fresh air mode or bypass mode. The sprinkler system enters the standby mode, that is, the sprinkler system is powered on, and the sprinkler system starts spraying when a spray command is received. The first dust sensor enters the working mode and starts to collect the dust concentration of the environment around the building.

[0055] As in step S2 above, the first dust concentration threshold may be pre-set or set by the user. Setting by the user allows the user to set the first dust concentration threshold according to actual conditions to obtain the most suitable time to start the sprinkler system.

[0056] As in step S3 above, in the case of multiple first dust sensors, the maximum concentration monitored can be selected as the dust concentration of the first dust sensor, or the average concentration can be taken as the dust concentration of the first dust sensor.

[0057] As in steps S4-S5 above, when the dust concentration detected by the first dust sensor is greater than the first dust concentration threshold, dust reduction is required to prevent a large amount of dust from entering the fresh air system. By controlling the spray system to spray the environment around the exterior wall, the dust concentration in the air can be reduced, thereby reducing the amount of dust from the environment that enters the fresh air fan, making the air drawn into the room by the fresh air fan fresher, reducing the number of times the fresh air fan needs to be cleaned, and maintaining good indoor air quality. The spray system includes multiple spray modes. Normally, the spray system is controlled to spray evenly on the environment around the exterior wall. In some special cases, the water volume can be increased or decreased, and the spraying method can be water spraying, mist spraying, etc. To further reduce the amount of dust from the environment that enters the fresh air fan, during the process of the fresh air fan drawing outdoor air into the room, the dust concentration detected by the dust sensor installed on the side of the fresh air fan filter closest to the room and the second dust concentration threshold are obtained. When the dust concentration detected by the second dust sensor is greater than the second dust concentration threshold, the spray volume of the spray system is increased, thereby further reducing the amount of dust entering the fresh air fan.

[0058] As in step S6 above, when the fresh air blower is in standby mode, if the user is not detected to have selected the fresh air blower working mode within a preset time, in order to ensure that the air the user breathes is clean, the air quality sensor is controlled to enter the working mode and the indoor air quality detected by the air quality sensor is obtained in real time. When the indoor air quality does not meet the set conditions, the fresh air blower is controlled to enter the exhaust mode to exhaust the indoor air to the outside, and at the same time the spray system is controlled to spray the environment around the exterior wall to reduce dust in the exhausted air, and at the same time the first dust sensor is controlled to enter the working mode and the dust concentration monitored by the first dust sensor is obtained in real time. When the dust concentration monitored by the first dust sensor is less than a preset threshold, the outdoor air is drawn into the room, thus ensuring that the air the user breathes is clean. It should be noted that the set conditions can be one or more combinations of formaldehyde concentration greater than a set threshold, oxygen concentration lower than a set threshold, PM2.5 concentration greater than a set threshold, and PM10 concentration greater than a set threshold.

[0059] In some embodiments, when the fresh air fan is in standby mode, if it is detected within a preset time period that the fresh air fan operating mode selected by the user does not include the step of drawing outdoor air into the room, the fresh air fan is controlled to operate alone and enter the corresponding operating mode.

[0060] In an embodiment of the present application, when the fresh air fan mode selected by the user does not include the step of drawing outdoor air into the room, such as when the user selects the internal circulation mode, then there is no need to control the dust monitoring system to work, nor is there any need to control the spraying system to spray, and the fresh air fan can operate alone.

[0061] In some embodiments, the second dust concentration threshold is preset.

[0062] In the embodiment of the present application, the second dust concentration threshold is pre-set, which means that the second dust concentration cannot be changed and is not specified by the user. It should be understood that since the setting of the second dust concentration threshold is relatively professional, it should not be specified by the user.

[0063] In some embodiments, the first dust concentration threshold is greater than the second dust concentration threshold.

[0064] Generally, after the air is sprayed by the spray system, the dust in the air will be reduced. Therefore, the first dust concentration threshold needs to be greater than the second dust concentration threshold.

[0065] In some embodiments, the step of obtaining the first dust concentration threshold comprises:

[0066] sending the dust concentration monitored by the first dust sensor to an electronic device for display;

[0067] When receiving an instruction to set a first dust concentration threshold, opening a first dust concentration threshold setting interface and writing the dust concentration currently monitored by the first dust sensor into the first dust concentration threshold interface, so that the user can adjust the first dust concentration threshold based on the currently monitored dust concentration on the first dust concentration threshold interface to set the first dust concentration threshold;

[0068] After receiving the concentration threshold confirmation instruction, determining whether the adjusted dust concentration threshold is greater than the second dust concentration threshold;

[0069] If it is greater than, the adjusted dust concentration is written into the memory as the first dust concentration threshold;

[0070] If not, a message pops up asking the user to adjust the dust concentration threshold to be greater than the second dust concentration threshold;

[0071] After detecting that the user has read the pop-up information, the first dust concentration threshold setting interface is reloaded, so that the user can make adjustments based on the currently monitored dust concentration on the first dust concentration threshold interface to set the first dust concentration threshold.

[0072] In an embodiment of the present application, an application can be developed to receive and display the dust concentration monitored by the first dust sensor. This application can be installed on an electronic device such as a mobile phone. In this way, the user can use the dust concentration currently monitored by the first dust sensor as a reference to adjust the first dust concentration threshold. In this way, the user can set the first dust concentration threshold based on the dust conditions in the environment, that is, the user can determine the optimal time to activate the sprinkler system and reduce the amount of dust entering the fresh air fan.

[0073] In some embodiments, the step of obtaining the dust concentration monitored by the first dust sensor includes:

[0074] Obtaining dust concentration monitored by each first dust sensor;

[0075] sorting the dust concentrations monitored by the first dust sensors to determine the maximum dust concentration;

[0076] The maximum dust concentration is used as the dust concentration monitored by the first dust sensor.

[0077] In the embodiment of the present application, since there are multiple first dust sensors and the first dust sensors are installed at different locations on the exterior wall, the dust concentrations detected by the first dust sensors at each location may be different. In order to minimize the entry of dust into the fresh air fan, the maximum dust concentration is used as the concentration detected by the first dust sensor. For example, when there are three first dust sensors, namely A, B, and C, and the dust concentration detected by A is A1, the dust concentration detected by B is B1, and the dust concentration detected by C is C1, where A1 is greater than B1 and B1 is greater than C1, then the maximum dust concentration is A1.

[0078] In some embodiments, the step of obtaining the dust concentration monitored by the second dust sensor includes:

[0079] Obtaining dust concentration monitored by each second dust sensor;

[0080] sorting the dust concentrations monitored by the second dust sensors to determine the maximum dust concentration;

[0081] The maximum dust concentration is used as the dust concentration monitored by the second dust sensor.

[0082] In the embodiment of the present application, since there are multiple second dust sensors, generally, the second dust sensors are evenly distributed around the filter. Since the dust concentrations detected by the second dust sensors at various locations may be different, in order to minimize the entry of dust into the fresh air fan, the maximum dust concentration is used as the concentration of the second dust sensor. It should be understood that when there are three second dust sensors, namely D, E, and F, and the dust concentration detected by D is D1, the dust concentration detected by E is E1, and the dust concentration detected by F is F1, where D1 is greater than E1 and E1 is greater than F1, then the maximum dust concentration is D1.

[0083] In some embodiments, after the step of determining whether the dust concentration is greater than the first dust concentration threshold, the method further includes:

[0084] If the dust concentration is less than or equal to the first dust concentration threshold, the process returns to the step of obtaining the dust concentration monitored by the first dust sensor.

[0085] In an embodiment of the present application, when the dust concentration detected by the first dust sensor is less than or equal to the first dust concentration threshold, the spray system is not controlled to perform a spraying operation, but returns to the step of obtaining the dust concentration monitored by the first dust sensor until it is detected that the dust concentration monitored by the first dust sensor is greater than the first dust concentration threshold and then the spray system is controlled to spray.

[0086] In some embodiments, after the step of detecting that the dust concentration monitored by the first dust sensor is less than the first dust concentration threshold, the method further includes:

[0087] Control the spraying system to stop spraying.

[0088] In an embodiment of the present application, when the dust concentration monitored by the first dust sensor is less than the first dust concentration threshold, the spraying system is controlled to stop spraying, which can reduce water usage, reduce the burden on users, and save resources.

[0089] In some embodiments, the dust monitoring system further includes a pedestrian recognition device, the pedestrian recognition device being used to recognize pedestrians in the environment surrounding the exterior wall, and the step of controlling the spray system to spray the environment surrounding the exterior wall includes:

[0090] determining whether the pedestrian recognition device recognizes a pedestrian;

[0091] If it is recognized, the environment around the exterior wall is sprayed at a first spraying volume during a first time period, and at a second spraying volume during a second time period. The first time period refers to the time from the start of spraying to n seconds, and the second time period refers to the time from the nth second to the end of spraying. The first spraying volume is smaller than the second spraying volume.

[0092] If not identified, the environment around the outer wall is sprayed with the second spray volume.

[0093] In an embodiment of the present application, the pedestrian recognition device includes a camera and a processing module. The processing module can analyze the image captured by the camera. Specifically, based on the image captured by the camera, a head detection method can be used to identify pedestrians. When controlling the sprinkler system to spray the environment around the outer wall, it is first determined whether the pedestrian recognition device recognizes a pedestrian. If a pedestrian is recognized, a low spray volume is first used to spray the environment around the outer wall to warn the surrounding pedestrians to leave. After a preset time, the normal spray volume is used for spraying. In this way, pedestrians can be avoided from getting wet and normal dust reduction can be achieved. It should be understood that the spray volume refers to the spray flow rate, that is, the amount of water output from the nozzle per second. The camera preferably uses a camera with an automatic dust cleaning function, so that it can accurately identify whether there are pedestrians.

[0094] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, apparatus, article, or method comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, apparatus, article, or method. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, apparatus, article, or method comprising the element.

[0095] The above description is only a preferred embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A collaborative control method for a cleaning system and a fresh air blower based on the Internet of Things, characterized in that: The cleaning system includes a dust monitoring system and a spraying system, the dust monitoring system includes a plurality of first dust sensors, a plurality of second dust sensors, and an air quality sensor, the first dust sensor is installed on the outer wall of the building, the second dust sensor is installed on the side of the filter of the fresh air fan close to the indoor space, the filter is installed at the outdoor air inlet, the spraying system includes a plurality of water spraying devices, the water spraying devices are installed on the top of the outer wall, the fresh air fan and the air quality sensor are installed indoors in the building, the dust monitoring system, the spraying system, and the fresh air fan are connected to the same network, and the method includes: When the fresh air fan is in a standby state, if it is detected within a preset time period that the fresh air fan operation mode selected by the user includes a step of drawing outdoor air into the room, the sprinkler system is controlled to enter a standby mode, and the first dust sensor is controlled to enter an operation mode; Obtaining a first dust concentration threshold; Obtaining the dust concentration monitored by the first dust sensor; determining whether the dust concentration monitored by the first dust sensor is greater than the first dust concentration threshold; If it is greater than, the sprinkler system is controlled to spray toward the environment around the exterior wall and the dust concentration monitored by the first dust sensor is obtained in real time; when the dust concentration monitored by the first dust sensor is less than the first dust concentration threshold, the fresh air fan is controlled to draw outdoor air into the room, and in the process of the fresh air fan drawing outdoor air into the room, the dust concentration monitored by the second dust sensor and the second dust concentration threshold are obtained; when the dust concentration monitored by the second dust sensor is greater than the second dust concentration threshold, the spraying amount of the sprinkler system is increased; When the fresh air fan is in standby mode, if the user is not detected selecting the fresh air fan working mode within a preset time period, the air quality sensor is controlled to enter the working mode, and the indoor air quality monitored by the air quality sensor is obtained in real time. When the indoor air quality does not meet the set conditions, the fresh air fan is controlled to enter the exhaust mode to discharge the indoor air to the outside, and at the same time, the spray system is controlled to spray the environment around the outer wall to reduce dust in the discharged air, and at the same time, the first dust sensor is controlled to enter the working mode, obtain the first dust concentration threshold and obtain the dust concentration monitored by the first dust sensor in real time. When the dust concentration monitored by the first dust sensor is less than the first dust concentration threshold, the outdoor air is drawn into the room.

2. The collaborative control method of the cleaning system and the fresh air blower based on the Internet of Things according to claim 1 is characterized in that: The method further comprises: When the fresh air fan is in standby mode, if it is detected within a preset time period that the fresh air fan working mode selected by the user does not include the step of drawing outdoor air into the room, the fresh air fan is controlled to operate alone and enter the corresponding working mode.

3. The collaborative control method of the cleaning system and the fresh air blower based on the Internet of Things according to claim 1 is characterized in that: The second dust concentration threshold is preset.

4. The collaborative control method of the cleaning system and the fresh air blower based on the Internet of Things according to claim 3 is characterized in that: The first dust concentration threshold is greater than the second dust concentration threshold.

5. The collaborative control method of the cleaning system and the fresh air blower based on the Internet of Things according to claim 4 is characterized in that: The step of obtaining the first dust concentration threshold value includes: sending the dust concentration monitored by the first dust sensor to an electronic device for display; When receiving an instruction to set a first dust concentration threshold, opening a first dust concentration threshold setting interface and writing the dust concentration currently monitored by the first dust sensor into the first dust concentration threshold interface, so that the user can adjust the first dust concentration threshold based on the currently monitored dust concentration on the first dust concentration threshold interface to set the first dust concentration threshold; After receiving the concentration threshold confirmation instruction, determining whether the adjusted dust concentration threshold is greater than the second dust concentration threshold; If it is greater than, the adjusted dust concentration is written into the memory as the first dust concentration threshold; If not, a message pops up asking the user to adjust the dust concentration threshold to be greater than the second dust concentration threshold; After detecting that the user has read the pop-up information, the first dust concentration threshold setting interface is reloaded, so that the user can make adjustments based on the currently monitored dust concentration on the first dust concentration threshold interface to set the first dust concentration threshold.

6. The collaborative control method of the cleaning system and the fresh air blower based on the Internet of Things according to claim 1 is characterized in that: The step of obtaining the dust concentration monitored by the first dust sensor includes: Obtaining dust concentration monitored by each first dust sensor; sorting the dust concentrations monitored by the first dust sensors to determine the maximum dust concentration; The maximum dust concentration is used as the dust concentration monitored by the first dust sensor.

7. The collaborative control method of the cleaning system and the fresh air blower based on the Internet of Things according to claim 1 is characterized in that: The step of obtaining the dust concentration monitored by the second dust sensor includes: Obtaining dust concentration monitored by each second dust sensor; sorting the dust concentrations monitored by the second dust sensors to determine the maximum dust concentration; The maximum dust concentration is used as the dust concentration monitored by the second dust sensor.

8. The collaborative control method of the cleaning system and the fresh air blower based on the Internet of Things according to claim 1 is characterized in that: After the step of determining whether the dust concentration is greater than the first dust concentration threshold, the method further includes: If the dust concentration is less than or equal to the first dust concentration threshold, the process returns to the step of obtaining the dust concentration monitored by the first dust sensor.

9. The collaborative control method of the cleaning system and the fresh air blower based on the Internet of Things according to claim 1 is characterized in that: After the step of detecting that the dust concentration detected by the first dust sensor is less than the first dust concentration threshold, the method further includes: Control the spraying system to stop spraying.

10. The collaborative control method of the cleaning system and the fresh air blower based on the Internet of Things according to claim 1, characterized in that: The dust monitoring system further includes a pedestrian recognition device, which is used to recognize pedestrians in the environment around the exterior wall. The step of controlling the spray system to spray the environment around the exterior wall includes: determining whether the pedestrian recognition device recognizes a pedestrian; If it is recognized, the environment around the exterior wall is sprayed at a first spraying volume during a first time period, and at a second spraying volume during a second time period. The first time period refers to the time from the start of spraying to n seconds, and the second time period refers to the time from the nth second to the end of spraying. The first spraying volume is smaller than the second spraying volume. If not identified, the environment around the outer wall is sprayed with the second spray volume.

Images