TWI905621B - Indoor air cleaning system - Google Patents

Abstract

An indoor air cleaning system is disclosed and includes plural air detection modules, plural air cleaning devices, and at least one central control device. The air detection devices detect, output air pollution data, and include at least one microprocessor and at least one central control communication interface component. The microprocessor calculates and processes the air pollution data to output control signals. The air cleaning devices include a blower, a filter element and a drive control component. The air detection modules are disposed within the air cleaning devices. The central control device is connected to the central control communication interface component through wire or wirelessly and communicates through a handshake protocol to provide control command to the air detection modules for controlling the operation of the blower. As the blower is controlled to be enabled, an air pollution is guided to pass through the filter element. An air pollution status in an indoor area is calibrated by the air pollution data outputted in a prediction time of several gas detection modules to meet the requirements of the clean room class.

Description

Indoor air purification system

This invention relates to an indoor air purification system, particularly an indoor air purification system in which gas detection modules are integrated into each air purification device to perform air pollution detection and coordinated control operations, so that the air pollution status of the indoor area is output as air pollution data calibrated by the predicted time of multiple gas detection modules, thereby achieving the cleanroom grade requirements.

Particulate matter refers to solid particles or liquid droplets contained in the gas. Due to their extremely fine size, they can easily enter the lungs through the nasal hairs in the nasal cavity, causing lung inflammation, asthma, or cardiovascular diseases. If other pollutants adhere to particulate matter, the harm to the respiratory system will be further aggravated. In recent years, air pollution problems have become increasingly serious, especially the concentration of fine particulate matter (such as PM2.5), which is often too high. The monitoring of particulate matter concentration has gradually gained attention. However, because gas flows unstably with wind direction and volume, and most current gas quality monitoring stations for detecting particulate matter are fixed-point, it is impossible to confirm the current concentration of particulate matter in the surrounding area.

Furthermore, modern people are paying increasing attention to the quality of the air around them. For example, gases such as carbon monoxide, carbon dioxide, volatile organic compounds (VOCs), PM2.5, nitrogen oxides, and sulfur oxides, as well as particulate matter contained within these gases, can all affect human health when exposed to the environment, and in severe cases, even endanger life. Therefore, the quality of environmental air quality has attracted the attention of various countries, and how to detect air quality to avoid and stay away from areas with poor air quality is a pressing issue.

Using a gas sensor to detect ambient gases is a feasible way to determine the quality of gases. If it can also provide real-time detection information to warn people in the environment so that they can take precautions or escape in time, thus avoiding harm to their health from harmful gases, then using a gas sensor to detect the surrounding environment is an excellent application.

Furthermore, indoor air quality is not easy to control. Besides outdoor air quality, indoor air conditioning conditions and pollution sources are the main factors affecting indoor air quality. A system that can intelligently and quickly detect indoor air pollution sources in various areas can effectively remove indoor pollutants, creating a clean and safe breathing environment, and can monitor indoor air quality anytime, anywhere. Of course, if an indoor space can strictly control the concentration of suspended particulate matter according to "Clean Room" standards, striving to avoid the introduction, generation, and retention of particles, and controlling its temperature and humidity within the required range—that is, if indoor spaces are classified according to the number of suspended particles in the air—then a clean room can be achieved, meeting the requirements for a safe breathing environment.

The air pollution detection in the currently provided indoor air purification systems involves gas detectors detecting and transmitting air pollution information, which is then transmitted via communication to a cloud computing service device. This data is stored in an air pollution database, and the system intelligently calculates and compares the data to intelligently select and issue a control command to the air purification device's fan to start and regulate the operation. This continuously generates internal circulation airflow in the indoor area, repeatedly guiding air pollution through the filter elements for filtration and removal. As a result, the air quality in the indoor area reaches the cleanliness standard required by the number of suspended particulate matter, thus achieving the cleanroom level.

Furthermore, the indoor air purification system achieves real-time monitoring and filtration of indoor air quality by coordinating the installation of multiple air purification and control devices indoors, thereby reducing indoor air pollution to near zero and creating a breathable indoor environment. This is the main research topic of this invention.

The main objective of this invention is to provide an indoor air purification system comprising a plurality of gas detection modules, a plurality of air purification devices, and at least one central control device. By electrically connecting the gas detection modules to each air purification device, air pollution detection and coordinated control operations are implemented. Furthermore, the central control device is connected to the gas detection modules, enabling handshake communication via wired or wireless communication. A selectable activation mechanism is established to transmit control command signals to the gas detection module, which regulates the operation, airflow, and noise of the fans of multiple air purification devices. This allows air pollution to be filtered through the filter elements of the multiple air purification devices, causing the air pollution status of the indoor area to be calibrated by the predicted time detected by the multiple gas detection modules, thus achieving the cleanroom grade requirements.

To achieve the above objectives, the present invention provides an indoor air purification system, comprising: a plurality of gas detection modules for detecting air pollution, generating air pollution data, processing and outputting several control signals; and a plurality of air purification devices installed in an indoor area, mainly comprising a fan, a filter element, and a drive control component, wherein the gas detection modules are electrically connected to the drive control component to regulate the fan's start-up operation, airflow, and noise level, so that the fan is controlled to start and guide the air pollution through the filter element. Filtration; at least one central control device is connected to the central control communication interface component of the gas detection module, and provides a control command signal to the gas detection module to control the operation of the fans of a plurality of air purification devices through a wired or wireless handshake communication protocol connection, and receives the air pollution data signal detected by the gas detection module and displays it in real time; wherein, the air pollution status of the indoor area is the output air pollution data calibrated by the prediction time detected by the plurality of gas detection modules, and meets the cleanroom level requirements.

Examples embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different forms, all of which do not depart from the scope of the present invention, and the descriptions and illustrations therein are for illustrative purposes only and not for limiting the present invention.

Please refer to Figures 1A, 1B and 1C, which are schematic diagrams of the indoor air purification system of the present invention in use in indoor space A. The present invention provides an indoor air purification system, which mainly includes: a plurality of gas detection modules 1, a plurality of air purification devices 2, a central control and regulation device 3 and a cloud computing service device 4.

Please refer to Figure 2B. The gas detection module 1 mentioned above includes at least one power conversion component 11, at least one sensing element component 12, at least one microcontroller 13 (MCU), at least one wireless communication component 14 (WI-FI), and at least one central control communication interface component 15.

The aforementioned power conversion component 11 takes in an AC power source and converts it into a required DC power output, which is then provided to the sensing element component 12, the microcontroller 13, the wireless communication component 14, and the central control communication interface component 15. In this embodiment, the power conversion component 11 takes in an AC power source and converts it into 5V and 3.3V required DC voltages respectively. The 5V required DC voltage is provided to the particle sensing element 12a and the central control communication interface component 15, while the 3.3V required DC voltage is provided to the microcontroller 13, the temperature and humidity sensing element 12b, the gas sensing element 12c, the bacteria sensing element 12d, the fungus sensing element 12e, the virus sensing element 12f, and the wireless communication component 14, but is not limited thereto.

The aforementioned sensing element assembly 12 is a sensing element for detecting air pollution. It is deployed in an indoor area A or an outdoor area B to detect air pollution and outputs air pollution data to the microcontroller 13 for processing. The microcontroller 13 then outputs several control signals. It is worth noting that air pollution refers to particulate matter, ozone, carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen dioxide, acetaldehyde, acetylamine, acetonitrile, acetophenone, 2-acetylammonium fluorene, acrolein, acrylamide, acrylic acid, acrylonitrile, allyl chloride, 4-aminobiphenyl, aniline, anisidine, asbestos, benzene, benzidine, trichlorotoluene, benzyl chloride, biphenyl, di(2-ethylhexyl) phthalate (DEHP), dichloromethyl ether, tribromomethane, and 1-bromopropane. 1,3-Butadiene, calcium cyanamide, caprolactam, guapanthen, carbaryl, carbon disulfide, carbon tetrachloride, carbonyl sulfide, hydroquinone, chloramphenicol, chlordane, chlorine, chloroacetic acid, 2-chloroacetophenone, chlorobenzene, chlorobenzene, chloroform, chloromethyl methyl ether, chloroprene, cresol/methanesulfonic acid (isomers and mixtures), orthocresol, m-cresol, p-cresol, cumene, 2,4-dichlorophenoxyacetic acid, salts and esters, dichlorodiphenyl dichloroethylene (DDE), diazomethane, dibenzofuran, 1,2-dibromo-3-chloropropane, dibutyl phthalate Ester, 1,4-dichlorobenzene, 3,3-dichlorobenzidine, dichloroethyl ether (bis(2-chloroethyl) ether), 1,3-dichloropropene, dichloropine, diethanolamine, N,N-dimethylaniline, diethyl sulfate, 3,3-dimethoxybenzidine, dimethylaminoazobenzene, 3,3'-dimethylbenzidine, dimethylaminomethylchloro, dimethylformamide, 1,1-dimethylhydrazine, dimethyl phthalate, dimethyl sulfate, 4,6-dinitrobenzophenol and its salts, 2,4-dinitrophenol, 2,4-dinitrotoluene, 1,4-dichlorobenzidine 1,4-Ethylene chloride, 1,2-Diphenylhydrazine, epichlorohydrin (1-chloro-2,3-epoxypropane), 1,2-epoxybutane, ethyl acrylate, ethylbenzene, ethyl carbamate, chloroethane, dibromoethane, dichloroethane (1,2-dichloroethane), ethylene glycol, ethyleneimine (aziridine), ethylene oxide, cycloethylthiourea, dichloroethane (1,1-dichloroethane), formaldehyde, heptachlor, hexachlorobenzene, hexachlorobutadiene, hexachlorocyclopentadiene, hexachloroethane, 1,6-hexamethylene diisocyanate, hexamethyl... Phosphorylamine, hexane, hydrazine, hydrochloric acid, hydrogen fluoride (hydrofluoric acid), hydrogen sulfide, hydroquinone, isophorone, lindane (all isomers), maleic anhydride, methanol, potassium chloride, methyl bromide (bromomethane), chloromethane (chloromethane), methyl chloroform (1,1,1-trichloroethane), methyl ethyl ketone (2-butanone), methyl hydrazine, iodomethane (iodomethane), methyl isobutyl ketone (cyclohexanone), methyl isocyanate, methyl methacrylate, methyl tert-butyl ether, 4,4-methylenebis(2-chloroaniline), dichloromethane, methylene diphenyl diisocyanate MDI, 4,4'-aminodiphenylmethane, naphthalene, nitrobenzene, 4-nitrobenzene, 4-nitrophenol, 2-nitropropane, N-nitroso-N-methylurea, N-nitrosodimethylamine, N-nitrosomorpholine, parathion, pentachloronitrobenzene (pentabenzene), pentachlorophenol, phenol, p-phenylenediamine, phosgene, phosphine, phosphorus, phthalic anhydride, polychlorinated biphenyls (Aroclors) 1,3-Propanesulfonyl lactone, β-propiolactone, propionaldehyde, baconazole (Baigon), dichloropropane (1,2-dichloropropane), propylene oxide, 1,2-propyleneimine (2-methylaziridine), quinoline, quinone, styrene, styrene oxide, 2,3,7,8-tetrachlorobisphenyl dioxin, 1,1,2,2-tetrachloroethane, tetrachloroethylene (perchloroethylene), titanium tetrachloride, toluene, 2,4-toluenediamine, 2,4-toluene diisocyanate, o-toluidine, camphene chloride, 1,2,4-trichlorobenzene, 1,1,2-trichloroethane, trichloroethylene, 2,4,5-trichlorobenzene Phenol, 2,4,6-trichlorophenol, triethylamine, trifluralin, 2,2,4-trimethylpentane, vinyl acetate, vinyl bromide, vinyl chloride, vinylidene chloride (1,1-dichloroethylene), xylene, ortho-xylene, meta-xylene, para-xylene, antimony compounds, arsenic compounds (inorganic, including hydrogen arsine), beryllium compounds, cadmium compounds, chromium compounds, cobalt compounds, coke oven emissions, cyanide, ethylene glycol ethers, lead compounds, manganese compounds, mercury compounds, fine mineral fibers, nickel compounds, polycyclic organic compounds, radioactive nuclides (including radon), selenium compounds, bacteria, fungi, viruses, or combinations thereof.

The sensing element assembly 12 of the gas detection module 1 of this invention can not only detect suspended particles in the gas, but also further detect the characteristics of the introduced gas. Therefore, the sensing element assembly 12 of the gas detection module 1 includes a particle sensing element 12a, a temperature and humidity sensing element 12b and a gas sensing element 12c, or can be expanded to other sensing elements, such as a bacterial sensing element 12d, a fungal sensing element 12e and a virus sensing element 12f, to detect introduced air pollution. It is worth noting that in this embodiment, the sensing element assembly 12 is a particulate sensing element 12a, which detects suspended particulates (PM1, PM2.5, PM10), acetamide, acetonitrile, acetophenone, 2-acetaminophenene, acrolein, acrylamide, acrylic acid, acrylonitrile, allyl chloride, 4-aminobiphenyl, aniline, anisidine, asbestos, benzidine, biphenyl, and di(2-ethylhexyl) phthalate (DEHP) in the air. Dichloromethyl ether, 1,3-butadiene, calcium cyanamide, caprolactam, geptan, carbaryl, hydroquinone, chloramphenicol, chlordane, chloroacetic acid, 2-chloroacetophenone, chlorobenzene, chloromethyl methyl ether, cresol/methanesulfonic acid (isomers and mixtures), oxocresol, m-cresol, p-cresol, cumene, 2,4-dichlorophenoxyacetic acid, salts and esters, dichlorodiphenyl dichloroethylene (DDE), dibenzofuran, oxomethyl dichloroethylene Dibutyl diformate, 1,4-dichlorobenzene, 3,3-dichlorobenzidine, dichloroethyl ether (bis(2-chloroethyl) ether), 1,3-dichloropropene, dichloropine, diethanolamine, N,N-dimethylaniline, diethyl sulfate, 3,3-dimethoxybenzidine, dimethylaminoazobenzene, 3,3'-dimethylbenzidine, dimethylaminomethylchloro, dimethylformamide, 1,1-dimethylhydrazine, phthalic acid Dimethyl ester, dimethyl sulfate, 4,6-dinitrophenol and its salts, 2,4-dinitrophenol, 2,4-dinitrotoluene, 1,4-dichlorochloroethylene (1,4-ethylene dioxide), 1,2-diphenylhydrazine, epichlorohydrin (1-chloro-2,3-epoxypropane), 1,2-epoxybutane, ethyl acrylate, ethyl carbamate, ethylene glycol, ethyleneimine (aziridine), cyclohexane Ethylene oxide, cycloethylthiourea, hexachlorobutadiene, hexachlorocyclopentadiene, 1,6-hexamethylene diisocyanate, hexamethylphosphamide, hydrazine, hydroquinone, isophorone, lindane (all isomers), maleic anhydride, methylhydrazine, methyl isobutyl ketone (cyclohexanone), methyl isocyanate, methyl methacrylate, methyl tert-butyl ether, 4,4-methylenebis(2-chloroaniline), methylene diphenyl diisocyanate (MDI), 4,4'-aminodiphenylmethane, naphthalene, nitrobenzene, 4-nitrobenzene, 4-nitrophenol, 2-nitropropane, N-nitroso-N-methylurea, N-nitrosodimethylamine, N-nitrosomorpholine, parathion, pentachloronitrobenzene (pentabenzene), pentachlorophenol, phenol, p-phenylenediamine, phosphine, phosphorus, phthalic anhydride, polychlorinated biphenyls (Aroclors) 1,3-Propanesulfonyl lactone, β-propiolactone, pyroxane (Baigon), propylene oxide, 1,2-propyleneimine (2-methylaziridine), quinoline, quinone, styrene, styrene oxide, 2,3,7,8-tetrachlorobisphenyl dioxin, titanium tetrachloride, 2,4-toluenediamine, 2,4-toluenediisocyanate, o-toluidine, toxaphene (camphene chloride), 2,4,5-trichlorophenol, 2,4,6-trichlorophenol, triethylamine, fluroxypyridine, 2,2,4-trimethylpentane, vinyl acetate, vinyl bromide, vinyl chloride, vinylidene chloride (1,1-dichloroethylene), antimony compounds, arsenic compounds (inorganic, including...) The system includes air pollution data for hydrogen arsenide, beryllium compounds, cadmium compounds, chromium compounds, cobalt compounds, coke oven emissions, cyanide, lead compounds, manganese compounds, mercury compounds, fine mineral fibers, nickel compounds, polycyclic organic compounds, radioactive nuclides, and selenium compounds; the sensing element assembly 12 is a temperature and humidity sensing element 12b, which detects air pollution data for temperature and humidity in the air; the sensing element assembly 12 is a gas sensing element 12c, which detects air pollution data for gas molecules in the air, such as ozone, carbon monoxide, carbon dioxide, sulfur dioxide, acetaldehyde, benzene, trichlorotoluene, benzyl chloride, tribromomethane, and 1-bromopropane. Carbon disulfide, carbon tetrachloride, carbonyl sulfide, chlorine, chlorobenzene, chloroform, chloroprene, diazomethane, 1,2-dibromo-3-chloropropane, ethylbenzene, chloroethane, dibromoethane, dichloroethane (1,2-dichloroethane), dichloroethane (1,1-dichloroethane), formaldehyde, heptachlor, hexachlorobenzene, hexachloroethane, hexane, hydrochloric acid, hydrogen fluoride (hydrofluoric acid), hydrogen sulfide, methanol, potassium chloride, methyl bromide (bromomethane), chloromethane (chloroform) Methane, methyl chloroform (1,1,1-trichloroethane), methyl ethyl ketone (2-butanone), iodomethane (iodomethane), dichloromethane, phosgene, propionaldehyde, dichloropropane (1,2-dichloropropane), 1,1,2,2-tetrachloroethane, tetrachloroethylene (perchloroethylene), toluene, 1,2,4-trichlorobenzene, 1,1,2-trichloroethane, trichloroethylene, xylene, ortho-xylene, meta-xylene, para-xylene, ethylene glycol ether, radon, etc. The bacterial sensing element 12d of the sensing element assembly 12 detects air pollution data containing bacteria in the air; the fungal sensing element 12e of the sensing element assembly 12 detects air pollution data containing fungi in the air; the virus sensing element 12f of the sensing element assembly 12 detects air pollution data containing viruses, but is not limited to these.

The aforementioned particulate sensing element 12a is used to detect the particle size distribution (PM1, PM2.5, PM10) and concentration of suspended particulate matter contained in air pollution in an indoor area A or an outdoor area B. When the detected air pollution data of suspended particulate matter exceeds a set safety value, the microcontroller 13 will output several control signals. For example, the set safety detection value for suspended particulate matter (PM2.5) is less than 15 μg/m³. ^3. Concentration: Temperature and humidity sensing element 12b detects the temperature and humidity of the air in indoor area A. When the detected air pollution data for temperature and humidity exceeds a set safety value, the microcontroller 13 will output several control signals. For example, the set safety value for temperature and humidity in indoor area A is to maintain the temperature in indoor area A within the range of 25°C ± 3°C and humidity within the range of 50% ± 10%. Gas sensing element 12c detects the concentration of carbon dioxide ( _CO2 ) in the air. When the detected air pollution data for carbon dioxide ( _{CO2 )} exceeds a set safety value, the microcontroller 13 will output several control signals. When the air pollution data exceeds a set safety value, several control signals will be output. For example, the set safety value for carbon dioxide ( _CO2 ) air pollution data in indoor area A must be maintained below 800 PPM.

The aforementioned microcontroller 13 receives air pollution data output from the sensing element assembly 12, processes it, and outputs several control signals. The air pollution data output by the sensing element assembly 12 is transmitted to the microcontroller 13 for processing via serial communication (IIC) signals through electrical lines. The control signals output by the microcontroller 13 include a universal asynchronous transceiver (UART) signal and a universal input and output (GP I/O) signal. The universal asynchronous transceiver (UART) signal is transmitted to the air purifier 2, the wireless communication assembly 14, and the central control communication interface assembly 15 via electrical lines, and the universal input and output (GP I/O) signal is transmitted to the air purifier 2 via electrical lines. It is worth noting that, as shown in Figures 2A and 2B, the central control communication interface component 15 outputs a communication control line and communicates with a central control and regulation device 3 via a communication protocol. The communication protocol is a wired communication transmission using an RS485 communication protocol (the solid transmission line in Figure 2A). Please refer to Figures 4A and 4B. The gas detection module 1 can be configured with an external power terminal, which can be directly plugged into the power interface in indoor area A or outdoor area B (as shown in Figures 1A and 1B, the gas detection module indicated by the number 1) to start operation and detect air pollution. Alternatively, as shown in Figure 4C, it can be a gas detection module without an external power terminal, which is directly installed inside the air purification device 2 and electrically connected (as shown in Figure 2A).

Please refer to Figures 3A and 3C. The air purification device 2 described above is installed in indoor area A and includes a fan 21, a filter element 22, a drive control component 23, and a gas detection module 1 directly mounted inside the air purification device 2 and electrically connected. The gas detection module 1 can detect air pollution and output drive power and control signals. 1. Electrically connects the fan 21 and the drive control component 23 (shown in Figure 3C). Referring further to Figures 2B and 3C, the air purification device 2 further includes a relay 24 and a communication interface device 25. The relay 24 is electrically connected to the AC power input output by the power conversion component 11 and is also connected to the microcontroller 13 to output control signals (General Purpose Input and Output (GPIO)). The I/O signal outputs AC power to the drive control component 23 for power control and regulation. The communication interface device 25 connects to the 5V DC voltage output by the power conversion component 11 and cooperates with the microcontroller 13 to output control signals (UART signals). It communicates with the drive control component 23 through a communication control line to control the fan speed of the air purifier 21, causing the fan 21 to start and draw air pollutants through the filter element 22 for filtration. It is worth noting that in this embodiment, the communication protocol of the communication control line output by the air purifier 2 is an RS485 communication protocol. It is worth noting that in this embodiment, a plurality of air purifiers 2 may be implemented in the system, each air purifier 2 including an address encoder (not shown) for connection to the output control signal (general purpose input and output (GP I/O) signal) line, enabling the plurality of the air purifiers 2 to be serially connected and controlled.

Please refer to Figure 2B. The aforementioned central control device 3 is connected to the central control communication interface component 15 of the gas detection module 1 via a communication control line. It provides control command signals to the microcontroller 13 through the communication protocol connection to control the operation of multiple air purification devices 2, and receives air pollution data signals detected by the gas detection module 1 for real-time display.

Please refer to Figures 2B and 3C. The aforementioned cloud computing service device 4 receives air pollution data signals detected and output by the gas detection modules 1 of multiple air purification devices 2 via wireless communication through a router 5, stores them to form an air pollution data database, and intelligently performs calculations and comparisons based on the air pollution data to intelligently select and issue a control command. The signal is transmitted wirelessly through router 5 and then received by gas detection modules 1 of multiple air purification devices 2. The signal is then transmitted to drive control component 23 to start fan 21. The fan 21 is started under control and draws air pollution through filter element 22 for filtration, so that the air pollution status of indoor area A is calibrated according to the detection time, and the clean room level requirements are met.

Furthermore, the gas detection modules 1 of the aforementioned plurality of air purification devices 2 can also be connected to the central control and regulation device 3 via wired communication to receive air pollution data signals. The central control and regulation device 3 then transmits the air pollution data signals to the router 5 via wireless communication. The router 5 then transmits the air pollution data signals to the cloud computing service device 4 for storage, forming an air pollution data database. The cloud computing service device 4 performs intelligent calculations and comparisons based on the air pollution data. The intelligent selection sends control commands to the central control and regulation device 3 via communication connection. The central control and regulation device 3 then transmits the commands to the gas detection modules 1 of multiple air purification devices 2 via wired communication connection for reception. The commands are then transmitted to the drive control component 23 to control the fan 21 to start operation. The fan 21 is started under control and guides air pollution through the filter element 22 for filtration, so that the air pollution status of indoor area A is calibrated according to the detection time, thereby achieving the cleanroom level requirements.

Under the Handshake communication protocol, the gas detection modules 1 of the aforementioned plurality of air purification devices 2 can adjust and select either operational wired or wireless communication to activate in the event of a disconnection in wireless or wired communication. The cloud computing service device 4 receives air pollution data through the operational wired or wireless communication activation mechanism, and performs intelligent calculations based on the air pollution data. The system compares and intelligently selects to issue control commands, which are connected through a selectable activation mechanism of wired or wireless communication. The commands are then transmitted to the gas detection modules 1 of multiple air purification devices 2 for reception, and then to the drive control component 23 to control the fan 21 to start operation. The fan 21 is controlled to start and guide air pollution through the filter element 22 for filtration, so that the air pollution status of indoor area A is calibrated according to the detection time, thereby achieving the cleanroom level requirements.

Furthermore, under the Handshake communication protocol, if both wireless and wired communication are lost, the gas detection modules 1 of the plurality of air purification devices 2 can autonomously calculate and compare the air pollution data they detect, and send control commands to the drive control component 23 to start the fan 21. The fan 21, under control, draws air pollution through the filter element 22 for filtration, causing the air pollution level in indoor area A to approach zero, thus achieving the cleanroom grade requirements. It is worth noting that the above-mentioned intelligent calculation includes artificial intelligence (AI) calculation and edge computing.

From the above description, it can be understood how the indoor air purification system proposed in this invention is specifically implemented in indoor space A. The following describes the plurality of air purification devices 2 specifically implemented in indoor space A. This air purification device 2 can be installed in indoor space A in a built-in or plug-in manner. If the air purification device 2 is installed in indoor space A in a built-in manner (as shown in Figures 1A and 1B), then at least one circulating return air duct C is provided in indoor space A, which is formed on the side of indoor space A by being surrounded and isolated by a plurality of partitions C1, and is provided with a plurality of air inlets C2 and a plurality of return air inlets C3.

The air purification device 2 can be a gas exchanger 2a, which is installed in the circulating return air duct C of indoor area A and corresponds to the air inlet C2. It also has a duct connection (not shown) to outdoor area B for ventilation. The gas detection module 1 of the gas exchanger 2a receives control commands via wireless or wired communication and transmits them to the drive control component 23 to start the fan 21. At least one gas detection module 1 is installed in outdoor area B and at least one gas detection module 1 is installed in indoor area A. The cloud computing service device 4 receives air pollution data from indoor area A and outdoor area B, stores it to form an air pollution data database, and... The intelligent system compares the air pollution data of indoor area A and outdoor area B. When the air pollution data of indoor area A is higher than that of outdoor area B, the cloud computing service device 4 sends a control command to the gas detection module 1 of the gas exchanger 2a via wireless or wired communication. The control command is received and transmitted to the drive control component 23 to regulate the start-up operation of the fan 21, so that the air in outdoor area B is introduced into indoor area A to realize ventilation. It is worth noting that the gas detection module 1 in both outdoor area B and indoor area A detects carbon dioxide ( _CO2 ) air pollution data. The _CO2 air pollution data detected by the gas detection module 1 must be maintained below a set safety value of 800 PPM. When the air pollution data exceeds this set safety value, the gas exchanger 2a introduces the gas from outdoor area B into indoor area A for ventilation. It is also worth noting that the gas exchanger 2a can be a fresh air unit or a total heat exchanger.

Please refer to Figures 1A, 1B and 3C. The air purification device 2 can be a circulating filter device 2b. The circulating filter device 2b is installed in the circulating return air duct C of the indoor area A and corresponds to the air inlet C2. The air pollutants are filtered through the filter element 22 and discharged into the space of the indoor area A through the air inlet C2. The gas detection module 1 of the circulating filter device 2b transmits air pollution data to the cloud computing service device 4 via wireless or wired communication. The cloud computing service device 4 receives the data and forms an air pollution data database. The cloud computing service device 4 then performs intelligent calculations and comparisons and intelligently selects and issues control commands. The gas detection module 1 receives the data via wireless or wired communication and transmits it to the drive control component 23 to control the fan 21 of the circulating filter device 2b to start operation. This allows air pollution to be filtered through the filter element 22 and enter the indoor space A, causing the air pollution status of the indoor space A to meet the cleanroom level requirements based on the detection time.

Please refer to Figures 1B, 1C and 3C. The air purification device 2 can be a negative pressure exhaust fan 2c. The negative pressure exhaust fan 2c is installed in the kitchen unit A1 of the indoor area A, and is installed in the circulating return air duct C of the indoor area A. It also has a duct connecting to (not shown) the outdoor area B to accelerate the discharge of air pollution from the indoor area A to the outdoor area B. The gas detection module 1 of the negative pressure exhaust fan 2c transmits air pollution data to the cloud computing service device 4 for reception, forming an air pollution data database. It then intelligently performs calculations and comparisons, and intelligently selects and issues control commands. The gas detection module 1 receives the data via wireless or wired communication and transmits it to the drive control component 23 to activate the negative pressure exhaust fan 2c. This draws the air pollution through the filter element 22, accelerating the discharge of air pollution from indoor area A to outdoor area B. It is noteworthy that in this embodiment, the negative pressure exhaust fan 2c is installed in front of the cooking equipment D, directly drawing in air pollution for external discharge, preventing the cook from smelling cooking fumes and preventing air pollution from spreading to other spaces such as the living room, but this is not a limitation.

Please refer to Figures 1B, 1C and 3C. The air purification device 2 can be a range hood 2d installed in the kitchen unit A1 of indoor area A. The range hood 2d is installed in the circulating return air duct C of indoor area A and has a duct connection (not shown) to outdoor area B to accelerate the discharge of air pollution from indoor area A to outdoor area B. The gas detection module 1 of the exhaust fan 2d transmits air pollution data to the cloud computing service device 4 to form an air pollution data database, and performs intelligent calculations and comparisons to intelligently select and issue control commands. The gas detection module 1 receives the data through wireless or wired communication and then transmits it to the drive control component 23 to control the fan 21 of the exhaust fan 2d to start operation, and guide the air pollution through the filter element 22 to accelerate the discharge of air pollution in indoor area A to outdoor area B.

Please refer to Figures 1B and 3C. The air purification device 2 can be a bathroom exhaust fan 2e, which is installed in the bathroom unit A2 in indoor area A. The bathroom exhaust fan 2e is installed in the circulating return air duct C of indoor area A and has a duct connecting to (not shown) outdoor area B to accelerate the discharge of air pollution from indoor area A to the outside of outdoor area B. The gas detection module 1 of the bathroom exhaust fan 2e transmits the air pollution data to the cloud computing service device 4 to form an air pollution data database, and performs intelligent calculation and comparison, and intelligently selects to issue control commands. The gas detection module 1 receives the data through wireless or wired communication and transmits it to the drive control component 23 to control the fan 21 of the bathroom exhaust fan 2e to start operation, and guide the air pollution through the filter element 22 to accelerate the discharge of air pollution in indoor area A to outdoor area B, while simultaneously regulating the temperature and humidity of the bathroom unit A2 in indoor area A. It is worth noting that the temperature and humidity control is to maintain the temperature in bathroom unit A2 of indoor space A within the range of 25°C±3°C and humidity of 50%±10%.

Please also refer to Figures 3A and 3B. The fan 21 of the air purification device 2 is started under control to guide air pollution through the filter element 22 for filtration. The filter element 22 can be an ultra-high efficiency filter (ULPA) or a high efficiency particulate air filter (HEPA) to adsorb chemical fumes, bacteria, dust particles and pollen contained in the air pollution, so that the introduced air pollution can achieve the effect of filtration and purification.

In this embodiment, the filter element 22 can be further combined with physical or chemical materials to provide a sterilization effect on the air pollutants. The airflow path of the fan 21 is in the direction indicated by the arrow. Therefore, as shown in Figure 3B, the air pollutants are sterilized and removed by chemical means through the coating of a decomposition layer on the filter element 22. The decomposition layer can be activated carbon 22a, which removes organic matter from the air pollutants. The decomposition layer can be composed of inorganic substances and colored and odorous substances. The decomposition layer can be a chlorine dioxide cleaning factor 22b, which inhibits viruses, bacteria, fungi, influenza A virus, influenza B virus, enterovirus, and norovirus in air pollution with an inhibition rate of over 99%, helping to reduce cross-infection of viruses. The decomposition layer can be a herbal protective layer 22c of ginkgo and Japanese saltwood, which effectively resists allergies and destroys the surface proteins of influenza viruses (e.g., H1N1). The decomposition layer can be a silver ion 22d, which inhibits viruses, bacteria, and fungi introduced into the air pollution. The decomposition layer can be a zeolite 22e, which removes ammonia nitrogen, heavy metals, organic pollutants, E. coli, phenol, chloroform, and silver ion surfactants.

In some embodiments, the filter element 22 can also be combined with a chemical method of light irradiation to sterilize and remove air pollution. The light irradiation is a photocatalyst unit consisting of a photocatalyst 22f and an ultraviolet lamp 22g. When the photocatalyst 22f is irradiated by the ultraviolet lamp 22g, it converts light energy into electrical energy, decomposing harmful substances in the air pollution and disinfecting and sterilizing to achieve a filtration and sterilization effect. Alternatively, the light irradiation can be a photoplasma unit consisting of a nano-tube 22h. Air pollution introduced through the nano-tube 22h is irradiated, causing oxygen and water molecules in the air to decompose into highly oxidizing photoplasma, forming an ionic gas flow that destroys organic molecules. This removes volatile formaldehyde, toluene, and volatile organic compounds (VOCs) from the air pollution. VOCs and other gas molecules are decomposed into water and carbon dioxide, achieving the effect of filtration and sterilization. It is worth noting that in this embodiment, as shown in Figure 3D, the air purification device 2 is further provided with an ultraviolet lamp assembly 26. The ultraviolet lamp assembly 26 includes a relay 26a. The relay 26a is connected to the power conversion module 11 to output AC power and is connected to the microcontroller 13 to output control signals (general purpose input and output (GP I/O) signals) to provide AC power to a power switch 26b. The power switch 26b is connected to control the start and control of an ultraviolet lamp 22g. The ultraviolet lamp 22g is located on one side of the filter element 22 for sterilization of air pollutants.

In some embodiments, the filter element 22 can also be combined with a decomposition unit to chemically remove air pollutants through sterilization. The decomposition unit can be a negative ion unit 22i, causing positively charged particles from the introduced air pollutants to attach to negatively charged particles, thus achieving filtration and sterilization of the introduced air pollutants. Alternatively, the decomposition unit can be a plasma ion unit 22j, which uses plasma ions to ionize oxygen and water molecules in the air pollutants, generating cations (H ⁺ ) and anions ( ^O2-). Furthermore, substances with water molecules attached to the ions adhere to the surface of viruses and bacteria. Under the action of chemical reaction, they are transformed into highly oxidizing reactive oxygen species (hydroxyl, OH radicals), thereby taking away the hydrogen from the surface proteins of viruses and bacteria, oxidizing and decomposing them, so as to achieve the effect of filtering and sterilizing the introduced air pollution.

Please refer to Figure 5. The aforementioned cloud computing service device 4 includes a wireless network cloud computing service module 41, a cloud control service unit 42, a device management unit 43, and an application unit 44. The wireless network cloud computing service module 41 receives air pollution data from the gas detection module 1 in outdoor area B and indoor area A, and receives data from multiple air purification devices 2 (gas exchanger 2a, circulating filter 2b, etc.). The negative pressure exhaust fan 2c, the smoke exhaust fan 2d, and the bathroom exhaust fan 2e) have built-in gas detection module 1 for communicating air pollution data and transmitting control commands. The wireless network cloud computing service module 41 receives air pollution data from indoor area A and outdoor area B and transmits it to the cloud control service unit 42 for storage, forming an air pollution data database. It also performs intelligent calculations and compares the data with the air pollution data database, and sends control commands to the wireless network cloud. The computing service module 41 then transmits control activation operations to the devices (air purifier 2, central control and regulation device 3, gas exchanger 2a) via the wireless network cloud computing service module 41. Meanwhile, the device management unit 43 receives communication data from multiple air purifiers 2 (gas exchanger 2a, circulating filter 2b, negative pressure exhaust fan 2c, smoke exhaust fan 2d, bathroom exhaust fan 2e) via the wireless network cloud computing service module 41. The system manages user login and device binding, and provides device management information to application unit 44 for system control and management. Application unit 44 also displays and notifies users of air pollution information obtained from cloud control service unit 42, allowing users to understand the real-time status of air pollution removal through mobile phones or communication devices, and users to control the operation of the indoor air purification system through application unit 44 on their mobile phones or communication devices.

As described above, this invention provides an indoor air purification system. In specific implementation, each indoor air purification device 2 is equipped with a gas detection module 1 to detect air pollution, transmit air pollution data, and receive control commands. This module is electrically connected to the drive control component 23 of the air purification device 2. The drive control component 23 regulates the operation of the fan 21 of the air purification device 2, and the gas detection module... 1. Output air pollution data transmission is achieved through wireless or wired communication reception. This utilizes the dual nature of wired and wireless communication to select the operational transmission mechanism. Combined with a monitoring mechanism that effectively interlocks wired and wireless communication protocols, the system autonomously determines and selects either wired or wireless communication as the operational mode for air pollution detection. Air pollution data is transmitted to cloud computing service device 4, which then generates control commands that are fed back to gas detection module 1 and transmitted to electrical connection drive control component 23. Drive control component 23 then controls the fan 21 of air purification device 2 to start operation, realizing a detection disconnection prevention mechanism that is required for wireless or wired communication. In addition, the air pollution data detected by gas detection module 1 is transmitted to cloud computing service device 4. In the event of a dual interruption of wired and wireless communication, the gas detection module 1 can autonomously calculate and compare air pollution data, and autonomously send control commands to the drive control component 23 of the air purification device 2 to control the fan 21 to start operation. The fan 21 is controlled to start and guide air pollution through the filter element 22 for filtration, so that the air pollution status of indoor area A reaches the clean room level requirements based on the detection time.

Furthermore, the indoor air purification system provided by this invention uses a cloud computing service device 4 to receive and store air pollution data from indoor area A and outdoor area B via wireless or wired communication, forming an air pollution data database. Based on this database, the system intelligently performs calculations and comparisons, and then intelligently selects and sends control commands to the fan 21 of the air purification device 2 to start and regulate the operation. This causes indoor area A to continuously generate internal circulation airflow, repeatedly guiding air pollution through the filter element 22 for filtration and removal. In other words, the cloud computing service device 4 intelligently calculates the real-time suspended particulate matter in indoor area A. The system intelligently selects and sends control commands to multiple air purification devices 2 based on the number and cleanliness of suspended particulate matter. It then activates the fans 21 of the air purification devices 2 in a timely manner. This allows the system to adjust the airflow and activation frequency of the fans 21 according to the real-time cleanliness of suspended particulate matter, thereby improving the cleanliness efficiency of indoor area A and reducing the environmental noise in indoor area A. This creates an internal circulation airflow in indoor area A, quickly guiding air pollutants through the filter element 22 multiple times for filtration and removal. As a result, the air pollution status of indoor area A is calibrated based on the detection time, achieving the cleanroom grade requirements.

The aforementioned cleanroom rating requirements mean that ZAP Cleanroom 1-9 is equivalent to ISO 1-9 cleanroom standards. However, ZAP Cleanroom 1-9 uses a different technical architecture than the traditional ISO 1-9 cleanroom standards, yet it achieves the same level of indoor air cleanliness. Traditional ISO 1-9 cleanrooms do not use sensors for real-time, 24/7 monitoring, requiring high-speed operation. This results in significant energy consumption and high noise levels, making such systems unsuitable for typical residential use. General home environment standards meet the cleanliness levels of ZAPClean room 6+, ⁶ , ^6- and ZAPClean room ⁷⁺ , 7, ^7- of this invention. The cleanliness level of ZAPClean room ⁶⁺ , 6, ^6- is equivalent to ISO 6 cleanliness level, and the cleanliness level of ZAPClean room ⁷⁺ , 7, ^7- is equivalent to ISO 7 cleanliness level.

This invention relates to an indoor air purification system that meets ZAPClean room standards of ⁶⁺ , 6, and ^6- , as well as ZAPClean room standards of ⁷⁺ , 7, and ^7-. The system utilizes multiple air purification devices (gas exchanger 2a, circulating filter 2b, negative pressure exhaust fan 2c, smoke exhaust fan 2d, and bathroom exhaust fan 2e) with built-in gas detection modules and a cloud computing service device to form an intelligent interconnected system. The system uses both external and internal gas detection modules to detect PM2.5 concentration/particulate count and carbon dioxide ( _CO2 ). Carbon monoxide (CO), formaldehyde, volatile organic compounds (TVOC), ozone ( _O3 ), bacteria, and fungi can be detected by connecting to a cloud computing service device via wired or wireless communication. The intelligent computing selects and provides control command signals to the gas detection modules of multiple air purification devices to regulate the start-up of fans, airflow speed, and noise level, thereby achieving a quiet and highly efficient clean room system like the ZAPClean room system.

In a specific embodiment of this invention, the air pollution status of indoor area A is measured by detecting particulate matter 2.5 (PM2.5), with the highest detected value over 24 hours ≤ 0.035 μg/ ^m3 as the standard, meeting the cleanroom level ⁶⁺ requirement; the air pollution status of indoor area A is measured by detecting particulate matter 2.5 (PM2.5), with the average detected value over 24 hours ≤ 0.035 μg/ ^m3 as the standard, meeting the cleanroom level 6 requirement; the air pollution status of indoor area A is measured by detecting particulate matter 2.5 (PM2.5), with the median detected value over 24 hours ≤ 0.035 μg/ ^m3 as the standard, meeting the cleanroom level 6 requirement. ^- Cleanroom Level Requirements: The air pollution status of indoor area A is measured using PM10, with the highest 24-hour detection value ≤0.06 μg/ ^m³ , meeting the Cleanroom Level ⁶⁺ requirement. The air pollution status of indoor area A is measured using PM10, with the average 24-hour detection value ≤0.06 μg/ ^m³ , meeting the Cleanroom Level 6 requirement. The air pollution status of indoor area A is measured using PM10, with the median 24-hour detection value ≤0.06 μg/ ^m³ , meeting the Cleanroom Level 6 requirement. ^- Cleanroom Level Requirements: For indoor area A, the air pollution status is assessed using formaldehyde detection, with the highest detected value over 1 hour ≤ 0.05 ppm as the standard, meeting the Cleanroom Level ⁶⁺ requirement. For indoor area A, the air pollution status is assessed using formaldehyde detection, with the average detected value over 1 hour ≤ 0.05 ppm as the standard, meeting the Cleanroom ^Level 6 requirement. For indoor area A, the air pollution status is assessed using volatile organic compounds (TVOC), with the highest detected value over 1 hour ≤ 0.45 ppm as the standard, meeting the Cleanroom Level 6 requirement. ⁺ Level Requirements; The air pollution status of indoor area A is measured using volatile organic compounds (TVOC) as the standard, with an average value of ≤0.45 ppm over 1 hour, meeting the cleanroom level 6 requirements; The air pollution status of indoor area A is measured using volatile organic compounds (TVOC) as the standard, with a median value of ≤0.45 ppm over 1 hour, meeting the cleanroom ^level 6 requirements; The air pollution status of indoor area A is measured using particulate matter 2.5 (PM2.5), with the highest value detected over 24 hours ≤0.35 μg/ ^m3 , meeting the cleanroom level 7 requirements. ⁺ Level Requirements: For indoor area A, the air pollution status is as follows: PM2.5 detection, with a 24-hour average value ≤0.35 μg/ ^m³ , meets the Clean Room Level 7 requirement; For indoor area A, the air pollution status is as follows: PM2.5 detection, with a 24-hour median value ≤0.35 μg/ ^m³ , meets the Clean Room Level ⁷ requirement; For indoor area A, PM10 detection, with a 24-hour maximum value ≤0.65 μg/ ^m³ , meets the Clean Room Level 7 requirement. ⁺ Level Requirements: For indoor area A, the air pollution status is measured for PM10, with a 24-hour average value ≤0.65 μg/ ^m³ , meeting the Clean Room Level 7 requirement. For indoor area A, the air pollution status is measured for PM10, with a 24-hour median value ≤0.65 μg/ ^m³ , meeting the Clean Room Level 7 requirement. ^- Level Requirements: For indoor area A, the air pollution status is measured for formaldehyde, with a 1-hour maximum value ≤0.08 ppm, meeting the Clean Room Level 7 requirement. ⁺ Level requirements; The air pollution status of indoor area A is measured by formaldehyde detection, with an average value of ≤0.08 ppm over 1 hour, meeting the clean room level 7 requirements; The air pollution status of indoor area A is measured by formaldehyde detection, with a median value of ≤0.08 ppm over 1 hour, meeting the clean room level ^7- requirements; The air pollution status of indoor area A is measured by volatile organic compounds (TVOC), with the highest value of ≤0.56 ppm over 1 hour, meeting the clean room level ⁷⁺ requirements; The air pollution status of indoor area A is measured by volatile organic compounds (TVOC), with an average value of ≤0.56 ppm over 1 hour, meeting the clean room level 7+ requirements. The air pollution status of Indoor Area A is measured by detecting volatile organic compounds (TVOC), with a median value of ≤0.56 ppm over 1 hour as the standard, meeting the cleanroom level ^7- requirement. The air pollution status of Indoor Area A is measured by detecting carbon dioxide ( _CO2 ), with the highest value detected over 8 hours ≤800 ppm as the standard, meeting the cleanroom level ⁶⁺ and ⁷⁺ requirements. The air pollution status of Indoor Area A is measured by detecting carbon dioxide ( _CO2 ), with an average value detected over 8 hours ≤800 ppm as the standard, meeting the cleanroom level 6 and 7 requirements. The air pollution status of Indoor Area A is measured by detecting carbon dioxide ( _CO2 ). For indoor area A, the air pollution status is assessed using carbon monoxide (CO) detection. The highest detected value over 8 hours is ≤800 ppm, meeting cleanroom level ^6- or ^7- requirements. For indoor area A, the air pollution status is assessed using carbon monoxide (CO) detection. The highest detected value over 8 hours is ≤9 ppm, meeting cleanroom level ⁶⁺ or ⁷⁺ requirements. For indoor area A, the air pollution status is assessed using carbon monoxide (CO) detection. The average detected value over 8 hours is ≤9 ppm, meeting cleanroom level 6 or 7 requirements. For indoor area A, the air pollution status is assessed using carbon monoxide (CO) detection. The median detected value over 8 hours is ≤9 ppm, meeting cleanroom level ^6- or 7 requirements. ^- Cleanroom Level Requirements: For indoor area A, the air pollution status is measured by detecting ozone (O3), with the highest detected value over 8 hours ≤ 0.06 ppm as the standard, meeting cleanroom level ⁶⁺ or ⁷⁺ requirements. For indoor area A, the air pollution status is measured by detecting ozone (O3), with the average detected value over 8 hours ≤ 0.06 ppm as the standard, meeting cleanroom level 6 or 7 requirements. For indoor area A, the air pollution status is measured by detecting ozone (O3), with the median detected value over 8 hours ≤ 0.06 ppm as the standard, meeting cleanroom level 6- or 7 ^requirements . ^- Cleanroom Level Requirements: For indoor area A, the air pollution status is assessed using the highest detected bacterial count over 24 hours, with a concentration of ≤10 colony-forming units (CFU) per cubic meter, meeting Cleanroom Level ⁶⁺ requirements. For indoor area A, the air pollution status is assessed using the average detected bacterial count over 24 hours, with a concentration of ≤10 colony-forming units (CFU) per cubic meter, meeting Cleanroom Level 6 requirements. For indoor area A, the air pollution status is assessed using the median detected bacterial count over 24 hours, with a concentration of ≤10 colony-forming units (CFU) per cubic meter, meeting Cleanroom Level 6 requirements. ^- Cleanroom Level Requirements: For indoor area A, the air pollution status is assessed using the highest detected fungal level over 24 hours, with a concentration of ≤10 colony-forming units (CFU) per cubic meter, meeting Cleanroom Level ⁶⁺ requirements. For indoor area A, the air pollution status is assessed using the average detected fungal level over 24 hours, with a concentration of ≤10 colony-forming units (CFU) per cubic meter, meeting Cleanroom Level 6 requirements. For indoor area A, the air pollution status is assessed using the median detected fungal level over 24 hours, with a concentration of ≤10 colony-forming units (CFU) per cubic meter, meeting Cleanroom Level 6 requirements. ^- Cleanroom Level Requirements: For indoor area A, the air pollution status is assessed using the highest detected bacterial count over 24 hours, with a concentration of ≤200 colony-forming units (CFU) per cubic meter, meeting Cleanroom Level ⁶⁺ requirements. For indoor area A, the air pollution status is assessed using the average detected bacterial count over 24 hours, with a concentration of ≤200 CFU per cubic meter, meeting Cleanroom Level 6 requirements. For indoor area A, the air pollution status is assessed using the median detected bacterial count over 24 hours, with a concentration of ≤200 CFU per cubic meter, meeting Cleanroom Level 6 requirements. ^- Cleanroom Level Requirements: For indoor area A, the air pollution status is assessed by detecting fungi, using the highest detected value over 24 hours, with ≤200 colony-forming units (CFU) per cubic meter as the standard, meeting the Cleanroom Level ⁷⁺ requirement. For indoor area A, the air pollution status is assessed by detecting fungi, using the average detected value over 24 hours, with ≤200 colony-forming units (CFU) per cubic meter as the standard, meeting the Cleanroom Level 7 requirement. For indoor area A, the air pollution status is assessed by detecting fungi, using the median detected value over 24 hours, with ≤200 colony-forming units (CFU) per cubic meter as the standard, meeting the Cleanroom Level ^7- requirement.

In summary, this invention provides an indoor air purification system comprising a plurality of gas detection modules, a plurality of air purification devices, and at least one central control device. By electrically connecting the gas detection modules to each air purification device, air pollution detection and coordinated control operations are implemented. Furthermore, the central control device is connected to the gas detection modules, enabling transmission and control commands through a selectable activation mechanism via a handshake communication protocol using either wired or wireless communication. The signal is sent to the gas detection module to control the operation of the fans, air volume, speed, and noise level of multiple air purification devices. This allows air pollution to be filtered through the filter elements of the multiple air purification devices, so that the air pollution status of the indoor area is calibrated by the air pollution data output by the multiple gas detection modules based on the detection and prediction time. This achieves the cleanroom level requirements, avoids the health impact and harm caused by gas hazards in the environment, and has great industrial application value.

A: Indoor Area A1: Kitchen Unit A2: Bathroom Unit B: Outdoor Area C: Circulating Air Return Channel C1: Partition C2: Air Inlet C3: Return Air Inlet D: Cooking Equipment 1: Gas Detection Module 11: Power Conversion Module 12: Sensing Element Module 12a: Particulate Detector 12b: Temperature and Humidity Detector 12c: Gas Detector 12d: Bacterial Detector 12e: Fungal Detector 12f: Virus Detector 13: Microcontroller 14: Wireless Communication Module 15: Central Control Communication Interface Module 2: Air Purification Device 21: Fan 22: Filter Element 22a: Activated Carbon 22b: Cleansing agent of chlorine dioxide 22c: Herbal protective layer of ginkgo and Japanese saltwort 22d: Silver ions 22e: Zeolite 22f: Photocatalyst 22g: Ultraviolet lamp 22h: Nano tube 22i: Negative ion unit 22j: Plasma ion unit 23: Drive control component 24: Relay 25: Communication interface device 26: Ultraviolet lamp assembly 26a: Relay 26b: Power switch 2a: Gas exchanger 2b: Circulating filter 2c: Negative pressure exhaust fan 2d: Smoke extractor 2e: Bathroom exhaust fan 3: Central control and regulation device 4: Cloud computing service device 41: Wireless network cloud computing service module 42: Cloud control service unit 43: Device management unit 44: Application unit 5: Router

Figure 1A is a schematic diagram showing the indoor air purification system of the present invention in use in an indoor environment. Figure 1B is another schematic diagram showing the indoor air purification system of the present invention in use in an indoor environment. Figure 1C is a schematic diagram showing the indoor air purification system of the present invention in use in a kitchen unit within an indoor environment. Figure 2A is a schematic diagram showing the transmission relationship of the gas detection module of the indoor air purification system of the present invention via wired or wireless communication. Figure 2B is a schematic diagram showing the control and assembly relationship of the gas detection module of the indoor air purification system of the present invention. Figure 3A is a schematic diagram showing the assembly relationship of the fan and filter element of the air filtration device of the present invention. Figure 3B is a schematic diagram showing the assembly relationship of the filter elements in the air filtration device of the present invention. Figure 3C is a schematic diagram showing the control and operation of the related components of the air filtration device of the present invention. Figure 3D is a schematic diagram showing the control and operation of the ultraviolet lamp assembly installed in the air filtration device of the present invention. Figure 4A is a three-dimensional schematic diagram showing the gas detection module of the present invention deployed and implemented in an outdoor or indoor detection area. Figure 4B is a three-dimensional schematic diagram showing the gas detection module of the present invention deployed and implemented in an outdoor or indoor detection area from another angle. Figure 4C is a schematic diagram showing the appearance of the gas detection module of the present invention. Figure 5 is a schematic diagram showing the architecture of the cloud computing service device of the present invention.

1: Gas Detection Module

2: Air Purification Device

2a: Gas exchanger

2b: Circulating Filter Device

2c: Negative pressure exhaust fan

2d: Smoke Exhaust Machine

2e: Bathroom exhaust fan

3: Central control and regulation device

4: Cloud computing service device

5: Router

Claims (73)

An indoor air purification system includes: a plurality of gas detection modules for detecting air pollution, generating air pollution data, processing and outputting several control signals; and a plurality of air purification devices installed in an indoor area, mainly including a fan, a filter element, and a drive control component, wherein the gas detection modules are electrically connected to the drive control component to control the fan's start-up operation, airflow, and noise level, so that the fan is controlled to start and guide the air pollution through the filter element for filtration. At least one central control device is connected to one of the central control communication interface components of the gas detection module. Through a wired or wireless handshake communication protocol connection, it provides a control command signal to the gas detection module to control the operation of the fan of a plurality of air purification devices, and receives the air pollution data signal detected by the gas detection module and displays it in real time. A cloud computing service device receives and stores air pollution data signals detected and output by the gas detection modules of a plurality of air purification devices through wireless communication via a router, forming an air pollution data database. The cloud computing service device intelligently performs calculations and comparisons based on the air pollution data, and intelligently selects and issues control commands through the router wireless communication connection, and then transmits them to the gas detection modules of the plurality of air purification devices for reception, and then transmits them to the drive control component to control the fan to start operation. The fan is controlled to start and guide the air pollution through the filter element for filtration. The air pollution status of one indoor area is determined by the output air pollution data calibrated by the predicted time detected by multiple gas detection modules, achieving the cleanroom level requirements. The cloud computing service device intelligently calculates the real-time cleanliness of the suspended particulate matter in the indoor area and intelligently selects and sends control commands to the gas detection modules of the multiple air purification devices for reception. These commands are then transmitted to the drive control component to adjust the start-up of the air purification device's fan in a timely manner, based on the real-time suspended particulate matter... The number of fans is adjusted randomly to improve the cleanliness of the indoor area and reduce the environmental noise. This creates an internal circulation airflow that quickly guides pollutants through the filter element for multiple passes, ensuring that the indoor air quality meets cleanroom standards. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is measured by detecting particulate matter 2.5 (PM2.5), with the highest value detected over 24 hours being ≤0.035 μg/ ^m3 , meets the cleanroom level ⁶⁺ requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is measured by detecting particulate matter 2.5 (PM2.5), and the average value of 24-hour detection is ≤0.035μg/ ^m3 , meeting the cleanroom level 6 requirements. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is measured by detecting particulate matter 2.5 (PM2.5), and the median value of 24-hour detection is ≤0.035μg/ ^m3 , meeting the cleanroom level ⁶ requirement. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is measured by detecting particulate matter 10 (PM10), and the highest value detected over 24 hours is ≤0.06μg/ ^m3 , meeting the cleanroom level ⁶⁺ requirements. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is calibrated by detecting particulate matter 10 (PM10), with an average value of ≤0.06μg/ ^m3 detected over 24 hours, meets the cleanroom level 6 requirements. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is calibrated by detecting particulate matter 10 (PM10), with a median value of ≤0.06 μg/ ^m3 detected over 24 hours, meets the cleanroom ^level 6 requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is formaldehyde detection, is calibrated with the highest detected value in 1 hour being ≤0.05ppm, and meets the clean room ⁶⁺ level requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor space is formaldehyde detection, is calibrated with an average value of ≤0.05ppm detected over 1 hour, and meets the clean room level 6 requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor space is formaldehyde detection, is calibrated with an average value of ≤0.05ppm detected over 1 hour, and meets the clean room level ⁶ requirement. The indoor air purification system as described in claim 1, wherein the air pollution state of the indoor area is measured by detecting volatile organic compounds (TVOC), with the highest detected value in 1 hour being ≤0.45ppm, to meet the cleanroom ⁶⁺ level requirements. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is calibrated by detecting volatile organic compounds (TVOC), with an average value of ≤0.45ppm detected over 1 hour, meeting the cleanroom level 6 requirement. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is calibrated by detecting volatile organic compounds (TVOC), with a median value of ≤0.45ppm detected over 1 hour, meeting the cleanroom level ⁶ requirement. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is to detect particulate matter 2.5 (PM2.5) with a maximum value of ≤0.35 μg/ ^m3 detected over 24 hours, meeting the cleanroom level ⁷⁺ requirement. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is detected as particulate matter (PM2.5), with an average value of ≤0.35 μg/ ^m3 over 24 hours, meets the cleanroom level 7 requirement. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is to detect particulate matter 2.5 (PM2.5) with a median value of ≤0.35 μg/ ^m3 over 24 hours, meeting the cleanroom level ⁷ requirement. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is to detect particulate matter 10 (PM10) with a maximum value of ≤0.65μg/ ^m3 detected over 24 hours, meeting the cleanroom level ⁷⁺ requirements. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is measured by detecting particulate matter 10 (PM10), with an average value of ≤0.65μg/ ^m3 over 24 hours, meeting the cleanroom level 7 requirement. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is to detect particulate matter 10 (PM10) with a median value of ≤0.65 μg/ ^m3 over 24 hours, meeting the cleanroom level ⁷ requirement. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is formaldehyde detection, with the highest detected value in 1 hour not less than 0.08 ppm, meets the clean room ⁷⁺ level requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is formaldehyde detection, with an average value of ≤0.08ppm detected over 1 hour, meets the clean room level 7 requirement. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor space is formaldehyde detection, is calibrated with a median detection value of ≤0.08ppm over 1 hour, and meets the clean room level ⁷ requirement. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is calibrated by detecting volatile organic compounds (TVOC), with the highest detected value in 1 hour being ≤0.56ppm, meeting the cleanroom level ⁷⁺ requirement. The indoor air purification system as described in claim 1, wherein the air pollution state of the indoor area is measured by detecting volatile organic compounds (TVOC), with an average value of ≤0.56ppm detected over 1 hour as the standard, meets the cleanroom level 7 requirement. The indoor air purification system as described in claim 1, wherein the air pollution state of the indoor area is measured by detecting volatile organic compounds (TVOC), with a median value of ≤0.56ppm detected over 1 hour as the standard, meets the cleanroom level ⁷ requirement. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is measured by detecting carbon dioxide ( _CO2 ), with the highest value detected over 8 hours being ≤800ppm, meets the cleanroom level requirements of ⁶⁺ or ⁷⁺ . The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is measured by detecting carbon dioxide ( _CO2 ), and the average value of 8 hours of detection is ≤800ppm, meeting the cleanroom level 6 or 7 requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is calibrated by detecting carbon dioxide ( _CO2 ), with a median value of ≤800ppm detected over 8 hours, meeting the cleanroom level ^6- or ^7- requirements. The indoor air purification system described in claim 1 is characterized by detecting carbon monoxide (CO) as the standard, with the highest detected value of ≤9ppm over 8 hours, meeting the cleanroom level requirements of ⁶⁺ or ⁷⁺ . The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is carbon monoxide (CO) detected, and the average value of 8 hours of detection is ≤9ppm, meeting the cleanroom level 6 or 7 requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is carbon monoxide (CO) detected, and the median value detected over 8 hours is ≤9 ppm, meeting the cleanroom level requirements of ^6- or ^7- . The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is ozone ( _O3 ), and the highest value detected over 8 hours is ≤0.06ppm, meeting the cleanroom level requirements of ⁶⁺ or ⁷⁺ . The indoor air purification system described in claim 1, wherein the air pollution state of the indoor area is ozone ( _O3 ), and the average value of 8 hours of detection is ≤0.06ppm, which meets the requirements of cleanroom level 6 or 7. The indoor air purification system described in claim 1, wherein the air pollution state of the indoor area is ozone ( _O3 ), and the median value detected over 8 hours is ≤0.06ppm, meeting the cleanroom level requirements of ^6- or ^7- . The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is measured by detecting bacteria, with the highest detection value over 24 hours, and ≤10 colony-forming units (CFU) per cubic meter as the standard, to meet the cleanroom level ⁶⁺ requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is determined by detecting bacteria, using a 24-hour detection average value of ≤10 colony-forming units (CFU) per cubic meter volume as the standard, to meet the cleanroom level 6 requirements. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is measured by detecting bacteria, with the median value of 24-hour detection being ≤10 colony-forming units (CFU) per cubic meter volume, to meet the cleanroom level ⁶ requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is measured by detecting fungi, with the highest detection value over 24 hours, and ≤10 colony-forming units (CFU) per cubic meter volume as the standard, meets the cleanroom level ⁶⁺ requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is measured by detecting fungi, with an average of ≤10 colony-forming units (CFU) per cubic meter of volume over 24 hours as the standard, meets the cleanroom level 6 requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is measured by detecting fungi, with the median value of 24-hour detection being ≤10 colony-forming units (CFU) per cubic meter volume, meets the cleanroom level ⁶ requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is measured by detecting bacteria, with the highest detection value over 24 hours, and ≤200 colony-forming units (CFU) per cubic meter as the standard, to meet the cleanroom level ⁶⁺ requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is determined by detecting bacteria, using a 24-hour detection average value of ≤200 colony-forming units (CFU) per cubic meter volume as the standard, to meet the cleanroom level 6 requirements. The indoor air purification system as described in claim 1, wherein the air pollution status of the indoor area is measured by detecting bacteria, with the median value of 24-hour detection being ≤200 colony-forming units (CFU) per cubic meter, to meet the cleanroom level ⁶ requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is measured by detecting fungi, with the highest detection value over 24 hours, and ≤200 colony-forming units (CFU) per cubic meter volume as the standard, meets the cleanroom level ⁷⁺ requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is measured by detecting fungi, with an average of ≤200 colony-forming units (CFU) per cubic meter of volume over 24 hours as the standard, meets the cleanroom level 7 requirements. The indoor air purification system described in claim 1, wherein the air pollution status of the indoor area is measured by detecting fungi, with the median value of 24-hour detection being ≤200 colony-forming units (CFU) per cubic meter volume, meets the cleanroom level ⁷ requirements. The indoor air purification system as described in claim 1, wherein the gas detection module includes at least one power conversion component, at least one sensing element component, at least one microcontroller, at least one wireless communication component, and the central control communication interface component, wherein the power conversion component provides the required power to the sensing element component, the microcontroller, the wireless communication component, and the central control communication interface component for operation, the sensing element component detects the air pollution and outputs the air pollution data to the microcontroller for processing, and the microcontroller outputs several control signals. The indoor air purification system as described in claim 47, wherein the sensing element assembly is a sensing element for detecting the air pollution. The indoor air purification system as described in claim 47, wherein the sensing element component is a particulate sensing element that detects air pollution data of suspended particulate matter contained in the air. The indoor air purification system as described in claim 47, wherein the sensing element component is a temperature and humidity sensing element that detects air pollution data such as temperature and humidity contained in the air. The indoor air purification system as described in claim 47, wherein the sensing element component is a gas sensing element that detects air pollution data of gas molecules contained in the air. The indoor air purification system as described in claim 47, wherein the sensing element component is a bacteria sensing element that detects air pollution data of bacteria contained in the air. The indoor air purification system as described in claim 47, wherein the sensing element component is a fungal sensing element that detects air pollution data of fungi contained in the air. The indoor air purification system as described in claim 47, wherein the sensing element component is a virus sensing element that detects air pollution data containing viruses in the air. As described in claim 1, in the indoor air purification system, the gas detection modules of a plurality of air purification devices are connected to the central control device via wired communication to receive air pollution data signals. The central control device then transmits the air pollution data signals to a router via wireless communication. The router then transmits the air pollution data signals to a cloud computing service device for storage, forming an air pollution data database. The system intelligently calculates and compares the air pollution data, and intelligently selects to send the control command to the central control and regulation device via communication connection. The central control and regulation device then transmits the command through wired communication connection to the gas detection modules of multiple air purification devices for reception, and then transmits it to the drive control component to control the fan to start operation. The fan is started under control and guides the air pollution through the filter element for filtration, so that the air pollution status of the indoor space can meet the clean room level requirements. As described in claim 1, in the indoor air purification system, the gas detection modules of a plurality of the air purification devices, through a handshake communication protocol between wired and wireless communication in the central control device, can adjust and select an operational wired or wireless communication selective activation mechanism in the event of a disconnection in wireless or wired communication. The cloud computing service device receives the air pollution data through this operational wired or wireless communication selective activation mechanism. The cloud computing service device intelligently calculates and compares the air pollution data, and intelligently selects to issue the control command. It is then connected to and transmitted to the gas detection modules of multiple air purification devices through a selectable activation mechanism of wired or wireless communication. The gas detection modules receive the command and transmit it to the drive control component to control the fan to start operation. The fan is controlled to start and guide the air pollution through the filter element for filtration, so that the air pollution status of the indoor area can meet the cleanroom level requirements. As described in claim 1, in the indoor air purification system, the gas detection modules of the plurality of air purification devices are connected to the central control device via a handshake communication protocol using wired or wireless communication. If both wireless and wired communication are lost, the air pollution data detected and output by the gas detection module can be autonomously calculated and compared with the air pollution data, and the control command is transmitted to the drive control component to control the fan to start operation. The fan is started under control and guides the air pollution through the filter element for filtration, so that the air pollution state of the indoor area can reach the clean room level requirements. The indoor air purification system as described in claim 1, wherein the intelligent operation includes artificial intelligence (AI) operation and edge computing. The indoor air purification system as described in claim 1 further includes at least one gas detection module deployed in an outdoor area and at least one gas detection module deployed in the indoor area to detect air pollution in the outdoor area and the indoor area. The cloud computing service device receives and stores the air pollution data from the indoor and outdoor areas to form a database of the air pollution data, and intelligently performs calculations to compare the air pollution data from the indoor and outdoor areas. When the air pollution data in the indoor area is higher than that in the outdoor area, the cloud computing service device sends a control command to the air purification device via wireless or wired communication. The air purification device is a gas exchanger. The gas detection module of the gas exchanger receives the control command via wireless or wired communication and transmits it to the drive control component to control the fan to start operation, so that the air in the outdoor area is introduced into the indoor area to perform ventilation. The indoor air purification system as described in claim 59, wherein the gas detection module in the outdoor area and the indoor area detects air pollution data of carbon dioxide ( _CO2 ). The indoor air purification system as described in claim 59, wherein the gas exchanger is a fresh air unit. The indoor air purification system as described in claim 59, wherein the gas exchanger is a total heat exchanger. As described in claim 1, the indoor air purification system is a circulating filter. The gas detection module of the circulating filter transmits the air pollution data to the cloud computing service device via wireless or wired communication. The cloud computing service device receives the data and forms a database of the air pollution data. The cloud computing service device then performs intelligent calculations and comparisons and intelligently selects and issues the control command. The gas detection module receives the data via wireless or wired communication and transmits it to the drive control component to start the fan of the circulating filter. This causes the air pollution to pass through the filter element and enter the indoor space, thereby ensuring that the air pollution status of the indoor space meets the cleanroom level requirements. As described in claim 1, the indoor air purification system is an air purification device, which is a negative pressure exhaust fan installed in the kitchen unit of the indoor area. The gas detection module of the negative pressure exhaust fan transmits the air pollution data to the cloud computing service device for receiving and forming a database of the air pollution data. The device performs intelligent calculations and comparisons, and intelligently selects and issues the control command. The gas detection module receives the data through wireless or wired communication and transmits it to the drive control component to control the negative pressure exhaust fan to start operation, thereby guiding the air pollution through the filter element for filtration, and accelerating the discharge of the air pollution in the indoor area to an outdoor area. As described in claim 1, the indoor air purification system is an exhaust fan installed in the kitchen unit of the indoor space. The gas detection module of the exhaust fan transmits the air pollution data to the cloud computing service device for receiving and forming a database of the air pollution data. The device performs intelligent calculations and comparisons, and intelligently selects and issues the control command. The gas detection module receives the data through wireless or wired communication and transmits it to the drive control component to control the fan of the exhaust fan to start operation, thereby guiding the air pollution through the filter element and accelerating the discharge of the air pollution in the indoor space to an outdoor space. As described in claim 1, the indoor air purification system is a bathroom exhaust fan installed in the bathroom unit of the indoor space. The gas detection module of the bathroom exhaust fan transmits the air pollution data to the cloud computing service device for reception to form a database of the air pollution data. The device performs intelligent calculations and comparisons, and intelligently selects and issues the control command. The gas detection module receives the data through wireless or wired communication and transmits it to the drive control component to control the bathroom exhaust fan to start operation. This allows the air pollution to be filtered through the filter element, accelerating the discharge of air pollution from the indoor space to an outdoor space. At the same time, it allows the bathroom unit in the indoor space to regulate the temperature and humidity. The indoor air purification system as described in claim 66, wherein the temperature and humidity control is to regulate the indoor space to maintain a temperature range of 25°C ± 3°C and a humidity range of 50% ± 10%. The indoor air purification system as described in claim 47 further includes a relay and a communication interface device. The relay is electrically connected to an AC power input output by the power conversion module and cooperates with the microcontroller to output the control signal, thereby providing AC power to the drive control module for power control. The communication interface device is connected to a DC power input output by the power conversion module and cooperates with the microcontroller to output the control signal. It is also connected to the drive control module via a communication control line to control the fan airflow of the air purification device. The indoor air purification system as described in claim 1, wherein the filter element is of the ultra-high efficiency filter class. The indoor air purification system as described in claim 1, wherein the filter element is of the high-efficiency particulate air (HEPA) filter class. The indoor air purification system as described in claim 47 further includes an ultraviolet lamp assembly. The ultraviolet lamp assembly includes a relay that receives an AC power input from the power conversion module and is connected to the microcontroller to output the control signal, thereby supplying AC power to a power switch. The power switch is connected to control the activation and regulation of an ultraviolet lamp. The indoor air purification system as described in claim 71, wherein the ultraviolet lamp is disposed on one side of the filter element for sterilizing the air pollutants. The indoor air purification system as described in claim 1, wherein the cloud computing service device includes a wireless network cloud computing service module, a cloud control service unit, a device management unit, and an application unit.