Indoor air purification method, device, equipment and storage medium

Abstract

An embodiment of the present invention provides an air purification method, device, equipment, and storage medium for an indoor space, wherein the indoor space has at least one printing device and a purification system. The method includes detecting the task status of at least one printing device executing a printing task; determining whether a preset purification condition is satisfied based on the task status; and if the preset purification condition is satisfied, the purification system purifies the air in the indoor space. By controlling the purification function based on the printer task status, the purification intensity can be reduced to save energy when there are few printing tasks, and the purification can be more thorough and effective when there are many printing tasks. This solves the problem of low efficiency and energy waste in the fixed mode operation of existing air purification systems, improves the air quality of indoor spaces with printers, and dynamically adjusts the purification system operation strategy based on the printing task, achieving a balance between precise control, energy saving and consumption reduction, and health protection.

Description

Technical Field

[0001] The present invention relates to the technical field of air purification, and in particular to an indoor air purification method, an indoor air purification device, an electronic device, and a computer-readable storage medium. Background Art

[0002] In modern office environments, print rooms are often equipped with multiple printers to meet high-frequency printing needs. However, during operation, these printers generate a variety of air pollutants, including particulate matter (such as PM2.5), volatile organic compounds, and other harmful gases. These pollutants can significantly affect indoor air quality, endangering worker health and reducing work efficiency.

[0003] Currently, most print rooms use air purification systems that operate in fixed-power mode. This mode maintains a constant power level regardless of the state of the print room's doors and windows or the amount of printing. This traditional air purification method has significant drawbacks: it can waste energy and may not effectively purify the air when the printer is operating at high loads, negatively impacting indoor air quality. Summary of the Invention

[0004] In view of the above problems, embodiments of the present invention are proposed to provide an indoor air purification method, an indoor air purification device, an electronic device and a computer-readable storage medium that overcome the above problems or at least partially solve the above problems.

[0005] To solve the above problems, an embodiment of the present invention discloses an air purification method for an indoor space, wherein the indoor space has at least one printing device and a purification system, and the method includes:

[0006] Detecting a task status of the at least one printing device executing a printing task;

[0007] Determine whether the preset purification conditions are met according to the task status;

[0008] If the preset purification conditions are met, the purification system is controlled to purify the air in the indoor space.

[0009] Optionally, detecting the task status of the at least one printing device executing the printing task includes:

[0010] Detecting the number of printed pages of a printing task executed by the at least one printing device;

[0011] The step of determining whether a preset purification condition is met according to the task status includes:

[0012] Determine page count threshold;

[0013] Determining whether the number of printed pages of the print task executed by the at least one printing device is greater than the page number threshold;

[0014] If the number of printed pages of the printing task executed by the at least one printing device is greater than the page number threshold, it is determined that the preset purification condition is met.

[0015] Optionally, detecting the number of printed pages of a print task executed by the at least one printing device includes:

[0016] The number of pages printed continuously during the execution of the printing task by the at least one printing device is detected.

[0017] Optionally, determining the page number threshold includes:

[0018] Determining a device type of the at least one printing device and determining a size of the indoor space;

[0019] Obtaining a mapping relationship for the page number threshold; the mapping relationship indicates the page number threshold corresponding to different device types and different space sizes;

[0020] A target page number threshold is determined according to the device type, the space size, and the mapping relationship.

[0021] Optionally, controlling the purification system to purify the air in the indoor space includes:

[0022] Determining whether the indoor space is in a ventilated state or a closed state;

[0023] If the indoor space is in a ventilation state, controlling the purification system to purify the air in the indoor space according to a first working mode;

[0024] If the indoor space is in a closed state, the purification system is controlled to purify the air in the indoor space according to a second working mode; wherein the purification intensity of the first working mode is lower than the purification intensity of the second working mode.

[0025] Optionally, the doors and windows of the indoor space are provided with status sensors;

[0026] The determining whether the indoor space is in a ventilated state or a closed state includes:

[0027] Obtaining the door and window opening and closing states detected by the state sensor;

[0028] According to the opening and closing status of the doors and windows, it is determined whether the indoor space is in a ventilated state or a closed state.

[0029] Optionally, before detecting the task status of the at least one printing device executing the printing task, the method further includes:

[0030] Detecting whether a user enters the indoor space;

[0031] The detecting the task status of the at least one printing device executing the printing task includes:

[0032] After detecting that a user enters the indoor space, detecting a task status of the at least one printing device executing a printing task.

[0033] A second aspect of an embodiment of the present invention discloses an air purification device for an indoor space, wherein the indoor space has at least one printing device and a purification system, and the device includes:

[0034] A first detection module is used to detect the task status of the at least one printing device executing the printing task;

[0035] A determination module, configured to determine whether a preset purification condition is met according to the task status;

[0036] The control module is configured to control the purification system to purify the air in the indoor space if the preset purification condition is met.

[0037] Optionally, the first detection module includes:

[0038] A first detection submodule, configured to detect the number of printed pages of a printing task executed by the at least one printing device;

[0039] The determining module includes:

[0040] A first determination submodule is used to determine a page number threshold;

[0041] a judgment submodule, configured to judge whether the number of printed pages of the printing task executed by the at least one printing device is greater than the page number threshold;

[0042] The second determining submodule is configured to determine that a preset purification condition is satisfied if the number of printed pages of the printing task executed by the at least one printing device is greater than the page number threshold.

[0043] Optionally, the first detection submodule includes:

[0044] The detection unit is used to detect the number of pages printed continuously during the execution of a printing task by the at least one printing device.

[0045] Optionally, the first determining submodule includes:

[0046] A first determining unit is configured to determine a device type of the at least one printing device and a size of the indoor space;

[0047] An acquiring unit, configured to acquire a mapping relationship for the page number threshold; the mapping relationship indicates the page number threshold corresponding to different device types and different space sizes;

[0048] The second determining unit is configured to determine a target page number threshold according to the device type, the space size, and the mapping relationship.

[0049] Optionally, the control module includes:

[0050] A third determining submodule is configured to determine whether the indoor space is in a ventilated state or a closed state;

[0051] a first control submodule, configured to control the purification system to purify the air in the indoor space according to a first working mode if the indoor space is in a ventilation state;

[0052] The second control submodule is used to control the purification system to purify the air in the indoor space according to a second working mode if the indoor space is in a closed state; wherein the purification intensity of the first working mode is lower than the purification intensity of the second working mode.

[0053] Optionally, the doors and windows of the indoor space are provided with status sensors;

[0054] The third determining submodule includes:

[0055] an acquisition unit, configured to acquire the door and window opening and closing states detected by the state sensor;

[0056] The third determining unit is configured to determine whether the indoor space is in a ventilated state or a closed state according to the open and closed states of the doors and windows.

[0057] Optionally, before detecting the task status of the at least one printing device executing the printing task, the method further includes:

[0058] A second detection module is used to detect whether a user enters the indoor space;

[0059] The first detection module includes:

[0060] The second detection submodule is configured to detect the task status of the at least one printing device executing a printing task after detecting that a user enters the indoor space.

[0061] According to a third aspect of an embodiment of the present invention, an electronic device is disclosed, comprising: a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the indoor space air purification method as described above are implemented.

[0062] According to a fourth aspect of the embodiments of the present invention, a computer-readable storage medium is disclosed, on which a computer program is stored. When the computer program is executed by a processor, the steps of the indoor space air purification method described above are implemented.

[0063] The embodiments of the present invention include the following advantages:

[0064] The present invention introduces a method for purifying air in an indoor space, wherein the indoor space comprises at least one printing device and a purification system. The method comprises: detecting the task status of the at least one printing device while executing a printing task; determining, based on the task status, whether preset purification conditions are met; and, if the preset purification conditions are met, causing the purification system to purify the air in the indoor space. By controlling the purification system based on the printer task status, the purification intensity can be reduced to save energy when there are few printing tasks, and increased when there are many, resulting in more thorough and effective purification. This method solves the problems of low efficiency and energy waste in the fixed-mode operation of existing air purification systems, improves the air quality of indoor spaces with printers, and achieves efficient energy utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 This is a flowchart of the steps of an indoor air purification method provided by an embodiment of the present invention;

[0066] Figure 2 This is a flowchart of another method for purifying indoor air provided by an embodiment of the present invention;

[0067] Figure 3 1 is a schematic diagram of the steps of another indoor air purification method provided by an embodiment of the present invention;

[0068] Figure 4 This is a structural block diagram of an indoor air purification device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0069] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0070] Printing equipment is an indispensable tool in the modern office environment. The impact of printers on air quality is mainly reflected in the following aspects:

[0071] Ultrafine particles (UFPs): Laser printers may release particles smaller than 0.1 microns during the high-temperature fusing process. If inhaled, these particles can deposit in the lungs and even enter the bloodstream. UFP concentrations can reach over 10 times background levels during operation in some models. Toner leakage: Poor-quality or damaged toner cartridges can cause toner to fly. The carbon black, heavy metals (such as cadmium and lead), and resin components they contain can cause respiratory irritation.

[0072] Volatile Organic Compounds (VOCs): Printers emit small amounts of VOCs (such as benzene, formaldehyde, and ozone) during operation, primarily from toner / ink. Solvent-based inks release more VOCs than water-based inks. Laser printers' high-voltage corona discharge produces ozone, which can cause sore throats and coughs over time. New printers or consumables generally release higher levels of VOCs initially, gradually decreasing with use. Other chemicals, such as plasticizers and flame retardants, may also release phthalates from printer plastic components, especially at high temperatures.

[0073] Paper dust. Dust generated by paper friction when printing frequently or using recycled paper may aggravate indoor particulate matter pollution.

[0074] The emissions generated during operation pose a significant threat to indoor air quality and human health. Fine particulate matter (PM2.5) is particularly vulnerable due to its small size, complex composition, and tendency to accumulate indoors. As a significant component of indoor air pollution, PM2.5 (particles with an aerodynamic diameter ≤ 2.5 microns) can penetrate deep into the lungs and even the bloodstream due to its tiny size and strong penetrating power, posing multiple health risks to the respiratory and cardiovascular systems.

[0075] Fine particulate matter generated during printer operation exhibits unique physical and chemical properties and emission patterns. A thorough understanding of these properties is fundamental to effectively controlling PM2.5 pollution in print rooms. Research has shown that the PM2.5 emission mechanism during printing is closely related to processes such as high-temperature fusing of toner, release of volatile substances from paper, and mechanical wear of the equipment. During operation, the heating element of a laser printer can reach temperatures exceeding 200°C. This process not only melts the toner and adheres to the paper, but also causes some of the toner components to volatilize, forming ultrafine particles. While inkjet printers do not involve high-temperature processes, volatile organic compounds in the ink can also form secondary particles. Furthermore, high temperatures release trace amounts of organic compounds such as formaldehyde, and friction within the printer's internal moving parts generates trace amounts of metal particles. These substances together contribute to the complex composition of PM2.5 in print rooms.

[0076] PM2.5 pollution in printing rooms is unique. Firstly, the particle size distribution of particulate matter emitted by printers is unique, primarily concentrated in the ultrafine range of 0.1-1μm. These particles have a larger surface area and are more susceptible to absorbing toxic and hazardous substances such as heavy metals and polycyclic aromatic hydrocarbons. Secondly, printing rooms are typically relatively closed spaces, where people spend extended periods of time, making pollutants less likely to disperse, leading to increased exposure risk.

[0077] One of the core concepts of the embodiments of the present invention is to propose an air purification method for an indoor space having at least one printing device and a purification system. By detecting the task status of the printing device in performing a printing task, the air purification system is controlled to purify the air, which solves the problems of low efficiency and energy waste in the fixed mode operation of the existing air purification system, significantly improves the air quality in the printing room, and realizes efficient energy utilization.

[0078] Reference Figure 1 , shows a flowchart of the steps of an indoor space air purification method provided by an embodiment of the present invention, wherein the indoor space has at least one printing device and a purification system, and the method may specifically include the following steps:

[0079] Step 101, detecting the task status of the at least one printing device executing the printing task;

[0080] In this embodiment, the indoor space can be a printing room or print shop, or an office or study with a printer. The printing device can be an inkjet printer or a laser printer, but the present invention is not limited thereto. Obtaining the task status of the printing device executing a printing task allows for targeted and scientific management of the purification equipment based on the specific printing device and task situation. The specific task status of the printing task can be obtained by a detection module installed in the printer's accessories.

[0081] For example, a printer operation detection module can be installed near the printer to determine whether the printer is in operation. Sensors can be used to detect the printer's operating status within the printing chamber. For example, an infrared sensor can be used to detect the movement of the printer's toner drum or other mechanical movements. For example, the infrared sensor can be a small device typically installed inside or near the printer housing.

[0082] A print job page count monitoring module can also be configured to obtain the total page count of a print job through the printer driver or print server. This data can be transmitted to a central controller via a network or read directly by a built-in sensor in the printer. The printer driver or print server software is installed in the corresponding computer system. Built-in sensors are installed inside the printer, such as a paper counter, which is typically located near the paper inlet or outlet.

[0083] Step 102: Determine whether a preset purification condition is met based on the task status;

[0084] In this embodiment, a system control module can also be provided to integrate the task status data of printing tasks executed by indoor printing devices through a central controller to achieve intelligent control of the air purification system. The system control module can be a computer or microcontroller with data processing and communication capabilities, and can be a PC, embedded controller, or industrial control unit. The central controller can be installed in a control cabinet or wall-mounted chassis within or near the indoor space where the printing devices are located.

[0085] Step 103: If the preset purification condition is met, control the purification system to purify the air in the indoor space.

[0086] After acquiring the task status data of the printing device executing a print task, it is determined whether it meets the preset purification conditions. The amount of emissions emitted by the printing device is affected by various factors. Traditional print room purification systems often use continuous operation or scheduled start-stop modes, which cannot adjust the purification intensity according to the actual working status of the printer, resulting in energy waste or delayed pollution control. Alternatively, if the printing task is relatively small, the emissions can dissipate on their own. Therefore, the purification function is controlled according to the specific printing task and the corresponding preset conditions are met.

[0087] The present invention introduces a method for purifying air in an indoor space, wherein the indoor space comprises at least one printing device and a purification system. The method comprises: detecting the task status of at least one printing device executing a printing task; determining whether preset purification conditions are met based on the task status; and if the preset purification conditions are met, causing the purification system to purify the air in the indoor space. By controlling the purification function based on the printer task status, the purification intensity can be reduced to save energy when there are few printing tasks, while purification can be more thorough and effective when there are many printing tasks. This solves the problems of low efficiency and energy waste in the fixed-mode operation of existing air purification systems, improves the air quality of indoor spaces with printers, and dynamically adjusts the purification system's operating strategy based on the printing task, achieving a balance between precise control, energy saving and consumption reduction, and health protection.

[0088] Reference Figure 2 , shows a flowchart of another method for purifying air in an indoor space provided by an embodiment of the present invention, wherein the indoor space has at least one printing device and a purification system, and the method may specifically include the following steps:

[0089] Step 201, detecting whether a user enters the indoor space;

[0090] The present invention's indoor air purification system is primarily designed to prevent air pollutants from harming human health. Therefore, if no one is present, the air purification system can be left on and allowed to dissipate naturally. Therefore, the system first detects whether a user has entered the indoor space where printing tasks are being performed before deciding whether to activate the purification system. This allows the purification system to be turned off when no one is present, saving energy.

[0091] Motion sensors, such as passive infrared sensors (PIRs), can be used to detect people entering a room by detecting changes in infrared radiation emitted by the human body. These sensors are low-cost and easy to install, but may not be sensitive to stationary objects. Microwave radar sensors can also be used, which detect movement based on the principle of microwave reflection. Compared to PIR sensors, they can better detect subtle movements, but are relatively expensive. Alternatively, cameras with intelligent analysis capabilities can identify human outlines or facial features to determine whether someone has entered or exited a room. When using this method, comply with relevant laws and regulations and implement appropriate data protection measures.

[0092] Alternatively, a magnetic door switch installed on the door frame can trigger an alarm or signal when the door opens or closes, indirectly indicating that someone has entered the room. Alternatively, Bluetooth beacons or Wi-Fi probes can be used to capture and record the signal when a user with a corresponding device (such as a smartphone) approaches. Pressure-sensing mats or under-floor sensors can be installed at entrances to notify the system when someone steps on them.

[0093] Step 202: After detecting that a user enters the indoor space, detecting the task status of the at least one printing device executing the printing task;

[0094] In one embodiment, step 202 may include the following sub-steps:

[0095] Sub-step S11, detecting the number of printed pages of the printing task executed by the at least one printing device;

[0096] There is a significant positive correlation between the number of pages printed by a printer and pollutant emissions. The correlation is mainly reflected in three aspects: consumables usage, equipment working principle and pollutant treatment efficiency.

[0097] First, emissions are driven by consumables consumption. An increase in the number of pages printed directly leads to an increase in the use of consumables such as ink / toner and paper. Laser printers consume approximately 0.05g–0.1g of toner per page, while inkjet printers consume approximately 0.1ml–0.3ml of ink per page. 46 Volatile organic compounds (VOCs), heavy metals (such as cadmium and lead), and resin components in consumables are released during the high-temperature fusing (laser) or volatilization (inkjet) processes, forming particulate matter (PM2.5, PM10) and ozone (O3). For example, when the fusing temperature of a laser printer reaches 200°C, toner volatilization releases ultrafine particles (UFPs, diameter <0.1μm), with concentrations reaching over 10 times the background value.

[0098] Secondly, the intensity of equipment operation is a factor. In continuous printing mode, high-frequency operation exacerbates mechanical wear and generates metal dust (such as particles from toner cartridge wear). Studies have shown that continuous printing of 50 pages increases particulate matter emissions by 30% to 50% compared to single-page printing. 4 Furthermore, high-load operation increases equipment temperature, accelerating the volatilization of VOCs.

[0099] In one embodiment of the present invention, the task status of at least one printing device executing a print task is primarily detected by the number of pages printed in a print task by the printing device. Information about the total number of pages in a print task can be obtained via a printer driver or a print server. This data can be transmitted to a central controller via a network or directly read by a built-in sensor in the printer.

[0100] In one embodiment, the sub-step S11 may include the following sub-steps:

[0101] Sub-step S111 , detecting the number of pages continuously printed by the at least one printing device during the execution of the printing task.

[0102] In one embodiment provided by the present invention, based on actual testing, the PM2.5 concentration in a printing room is typically between 50 μg / m³ and 200 μg / m³, with the specific value affected by factors such as printer type and frequency of use. Experiments conducted by the Chinese Academy of Environmental Sciences showed that in a 15 m³ chamber, the concentration rose from 15 to 120 μg / m³ after printing 100 pages continuously (single-page emissions were approximately 10.5 μg / page). For example, the particle emission concentration of a laser printer changes over time in the following manner: 0 to 2 minutes is the startup phase, with the concentration rising rapidly; 2 minutes to the completion of printing is the stable emission plateau period; and 5 to 10 minutes after the completion of printing is the concentration decay period.

[0103] If the printing task is stopped midway, the discharge of pollutants in the indoor space will also stop, and the concentration of pollutants in the indoor space will also decrease over time. Continuing the printing task after a long time is equivalent to restarting a new printing task. The number of printed pages before is no longer included in the statistics to refer to the preset page number threshold. The number of printed pages of the printing task executed by the printing device detected in the present invention needs to be recounted.

[0104] Adaptively, the number of printed pages detected by at least one printing device performing a printing task should be the number of printed pages printed continuously. A task with a task interruption time not exceeding 2 minutes can be defined as a "continuous" printing task, and the corresponding number of printed pages can be continuously counted.

[0105] It's important to note that the page count for a print job mentioned in this and the following examples isn't limited to a single printer. As long as the pages printed by at least one printer within the same "continuous" print job are counted as part of the page count threshold for that print job. Counting "continuous" print pages allows for more scientific and precise control of the purification system, resulting in higher air purification quality.

[0106] Step 203: Determine whether the preset purification conditions are met according to the task status;

[0107] In one embodiment, step 203 may include the following sub-steps:

[0108] Sub-step S21, determining a page number threshold;

[0109] Generally speaking, printing more pages means more toner or ink is consumed, which leads to an increase in the total emissions of the aforementioned pollutants. However, it is worth noting that emissions per page are not always constant; for example, pages with high image coverage typically consume more material and release more pollutants than pages with primarily text. Even if the amount of pollutants emitted per page is relatively small, as the number of pages printed accumulates, especially when the printer is used for a long time in a confined space without proper ventilation, indoor air quality can deteriorate significantly.

[0110] In an embodiment provided by the present invention, a suitable threshold value of the number of printed pages can be calculated according to different printing devices and printing types for determination, and different threshold values ​​of the number of printed pages correspond to different purification modes.

[0111] In one embodiment, the sub-step S21 may include the following sub-steps:

[0112] Sub-step S211, determining the device type of the at least one printing device and determining the size of the indoor space;

[0113] Different types of printing devices (e.g., laser printers and inkjet printers) produce varying types and quantities of pollutants. Furthermore, the size of indoor spaces directly impacts the time and intensity of air purification required. Therefore, dynamically adjusting the page count threshold based on device type and room size can help improve the intelligence of air purification control.

[0114] Laser printers primarily emit toner dust (containing elemental carbon and organic carbon) and metal particles, with particle sizes ranging from 0.1 to 1 μm, which easily accumulate indoors. Real-world measurements show that PM2.5 concentrations can rise to 60 μg / m³ for every 100 pages printed (2.4 times the WHO daily limit). Inkjet printers emit less particulate matter, but they still release a small amount of secondary VOCs when using solvent-based inks.

[0115] Regarding gaseous pollutants VOCs, they mainly come from solvents in ink / toner (such as toluene and xylene); ozone (O3): laser printers generate ozone through high-voltage corona discharge, which can release 0.1mg-0.5mg per thousand pages printed, and older equipment has higher emissions.

[0116] For indoor space sizes, assuming the total amount of PM2.5 emitted by a printer remains constant, larger spaces have lower particulate matter concentrations. For example, the PM2.5 concentration of a 100 m³ space, resulting from the same print job, is only about one-third of that of a 30 m³ space. This can be adjusted based on the size of the space.

[0117] Sub-step S212, obtaining a mapping relationship for the page number threshold; the mapping relationship indicates the page number threshold corresponding to different device types and different space sizes;

[0118] In an embodiment provided by the present invention, the mapping relationship of the page number threshold is that for different types of printing devices in indoor spaces of different sizes, there are corresponding page number thresholds. When the corresponding page number thresholds are reached, the purification equipment is controlled to purify the indoor air according to the corresponding working mode.

[0119] In a preferred embodiment of the present invention, to more accurately determine whether to initiate air purification, the system can pre-establish and store a mapping table for determining page count thresholds. This mapping reflects the pollutant release and diffusion characteristics of different printing device types and indoor space sizes, thereby enabling intelligent control of purification triggering conditions.

[0120] The mapping relationship can be adaptively expressed in various forms, such as tables, function models, lookup tables, or decision models trained through machine learning. A typical implementation involves constructing a two-dimensional or multi-dimensional lookup table that takes the printing device type and indoor space volume as input variables and outputs corresponding page count thresholds.

[0121] Furthermore, in some advanced embodiments, other factors can be incorporated to optimize the mapping relationship, such as print density (i.e., the coverage of printed content per page); print frequency (the number of pages printed per unit time); historical air quality data; and user-defined preferences. This additional information can be collected via sensors or input via a user-configured interface and further integrated into the mapping relationship to enhance the system's intelligence and adaptability. This invention does not impose any limitations on this mapping relationship.

[0122] Sub-step S213 , determining a target page number threshold according to the device type, the space size, and the mapping relationship.

[0123] After obtaining the printing device type and the size of the indoor space, the control system will combine the aforementioned mapping relationship to determine the target page count threshold applicable to the current environment.

[0124] In a preferred embodiment, this process can be completed collaboratively by an embedded controller or a cloud server, for example: deploying a lookup table in a local controller; or deploying a more complex AI model in the cloud platform and sending dynamic threshold recommendations to the local through the network.

[0125] For example, inkjet printers use liquid ink and generally release less PM2.5 than laser printers. Printing approximately 150-200 pages in a confined space (30 m³) will cause the indoor PM2.5 concentration to reach 50 μg / m³. When the printer is in poor condition, the concentration will reach this value after approximately 100-150 pages. If you are using an inkjet printer, you can adjust the page count threshold from 50 pages to 150 pages.

[0126] For example, for a laser printer in a 30-square-meter room, the page count threshold might be set at 100 pages; in a small office of 15 square meters, the threshold might be lowered to 50 pages. And for an inkjet printer in the same 15-square-meter indoor space, the page count threshold might be raised to 150 pages.

[0127] The embodiment of the present invention can adaptively adjust the page count threshold according to different device types and space sizes to avoid a "one-size-fits-all" judgment method; it comprehensively considers printing behavior and environmental factors and starts air purification only when necessary, saving energy and extending the life of the device.

[0128] Sub-step S22, determining whether the number of printed pages of the print task executed by the at least one printing device is greater than the page number threshold;

[0129] If the current number of printed pages exceeds the determined target page number threshold, it is considered that the printing task has generated a large amount of air pollutants and an air purification program needs to be started.

[0130] Sub-step S23: If the number of printed pages of the printing task executed by the at least one printing device is greater than the page number threshold, it is determined that the preset purification condition is met.

[0131] When the judgment result is yes, the control system believes that the current printing behavior may have caused the indoor air pollution level to rise to a level that requires intervention, and triggers the next air purification control process.

[0132] Step 204: If the preset purification condition is met, control the purification system to purify the air in the indoor space.

[0133] After receiving the air purification trigger signal, the control system will select the appropriate purification mode according to different environmental conditions to achieve efficient and energy-saving air purification effects.

[0134] In one embodiment, step 204 may include the following sub-steps:

[0135] Sub-step S31, determining whether the indoor space is in a ventilated state or a closed state;

[0136] In one embodiment, the doors and windows of the indoor space are provided with status sensors; the sub-step S31 may include the following sub-steps:

[0137] Sub-step S311, obtaining the door and window opening and closing states detected by the state sensor;

[0138] In one embodiment of the present invention, this sub-step can detect the current ventilation status of the room using status sensors installed on doors and windows. The status sensors can be magnetic switches, infrared sensors, or other forms of opening and closing detection devices, which are used to sense the open or closed status of doors and windows in real time.

[0139] Sub-step S312: determining whether the indoor space is in a ventilated state or a closed state according to the open and closed states of the doors and windows.

[0140] For example, if it is detected that at least one door or window is in the open state, it is determined to be a "ventilation state"; if all doors and windows are in the closed state, it is determined to be a "closed state".

[0141] Sub-step S32: If the indoor space is in a ventilation state, controlling the purification system to purify the air in the indoor space according to the first working mode;

[0142] In the ventilation state, due to the continuous inflow of external air, the concentration of indoor pollutants is relatively low, so the purification system can operate in the first working mode with lower power or wind speed. This mode has lower wind speed and energy consumption and is suitable for light pollution or auxiliary purification scenarios to save energy and avoid unnecessary noise interference.

[0143] Sub-step S33: If the indoor space is in a closed state, controlling the purification system to purify the air in the indoor space according to a second working mode; wherein the purification intensity of the first working mode is lower than the purification intensity of the second working mode.

[0144] In a closed state, air circulation is restricted and pollutants are easily accumulated, so the purification system should switch to a more efficient second working mode, such as increasing the fan speed, to quickly improve air quality.

[0145] Through this intelligent adjustment strategy based on environmental conditions, the system can automatically match the most appropriate purification intensity under different conditions, which not only ensures air quality but also improves energy efficiency and user experience.

[0146] This invention introduces an indoor air purification method. The indoor space includes at least one printer and a purification system. The method comprises: detecting the task status of at least one printer while executing a print task; determining, based on the task status, whether preset purification conditions are met; and, if the preset purification conditions are met, causing the purification system to purify the air in the indoor space. Upon detecting a user entering the indoor space, the system automatically detects the print task status of the printer and dynamically determines whether the purification conditions are met based on the number of pages printed, thereby intelligently controlling the operation of the air purification system. This not only improves the user experience but also effectively implements on-demand purification, saving energy and extending the life of the equipment. Furthermore, the system can flexibly adjust the purification intensity based on the indoor space's status (ventilated / enclosed), further enhancing the efficiency and applicability of air purification. By controlling the purification function based on the printer's task status, the purification intensity can be reduced to save energy when there are fewer print tasks, while purification can be more thorough and effective when there are more print tasks. This solves the problem of low efficiency and energy waste in the fixed-mode operation of existing air purification systems, improves the air quality of indoor spaces with printers, and dynamically adjusts the purification system's operation strategy based on print tasks, achieving a balance between precise control, energy conservation, and health protection.

[0147] Reference Figure 3 , shows a schematic diagram of the steps of another indoor space air purification method provided by an embodiment of the present invention.

[0148] When a person enters the printing room, the system first uses sensors to determine whether the printer is in operation. If the printer is not operating, the purification system is controlled to remain closed; if the printer is in operation, the system then checks the status of the printing room doors and windows.

[0149] With the printer powered on and the doors and windows of the print room closed, the system checks whether the print job exceeds 50 pages. If so, the purification system operates in high-speed mode with a wind speed of 2 m / s to quickly reduce the indoor particulate matter concentration. The system shuts down after 10-15 minutes. If the number of printed pages does not exceed 50, the purification system operates in medium speed mode with a wind speed of 1 m / s for 10-15 minutes.

[0150] When the printer is turned on and the doors and windows are open, there is an exchange of air between the indoor and outdoor air, and the indoor PM2.5 concentration will be lower than when the doors and windows are closed. If the number of printed pages exceeds 50 pages, the purification system will run at a medium speed of 1m / s, and the system will shut down after running for 10 to 15 minutes; if the number of printed pages does not exceed 50 pages, the purification system will run at a low speed of 0.5m / s, and the system will shut down after running for 10 to 15 minutes to achieve a balance between energy consumption and purification efficiency.

[0151] In addition to the above embodiments, it is also possible to obtain the number of printed pages, the consumption of consumables per page and the print type in real time, and then predict the PM2.5 generation amount based on the task parameters, and generate control instructions including purification gear and start time based on the PM2.5 generation amount and perform corresponding purification operations.

[0152] Adaptively, in one embodiment, a personnel positioning module can also be used to detect the position of personnel in the printing room through an infrared sensor; and then an air flow guide device can be used to adjust the air outlet angle according to the position of the personnel to reduce PM2.5 exposure.

[0153] In one embodiment, the purification efficiency can also be adjusted according to whether the printing task is grayscale printing or color printing. Generally, color printing will produce more pollutant emissions, so the working mode gear of the purification system can be increased or the working time can be extended.

[0154] In another embodiment provided by the present invention, an energy-saving mode can also be provided. The system uses machine learning to identify that 15:00-16:00 every day is the low-peak period for printing; the standby power of the purification system is automatically reduced during this period. If a sudden printing task is detected, it will immediately switch to high-power operation.

[0155] This paper proposes a method for dynamically adjusting air purification modes based on the status of doors and windows within the printing room and the number of pages being printed. Through real-time monitoring and intelligent control, the purification intensity is adjusted according to the actual operating status of the printer, preventing energy waste and delayed pollution control. This method addresses the low efficiency and energy waste inherent in fixed-mode operation of existing air purification systems, significantly improving air quality within the printing room while achieving efficient energy utilization.

[0156] It should be noted that for the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0157] Reference Figure 4 , shows a structural block diagram of an indoor air purification device provided by an embodiment of the present invention, wherein the indoor space has at least one printing device and a purification system, which may specifically include the following modules:

[0158] A first detection module 401 is configured to detect a task status of the at least one printing device executing a printing task;

[0159] A determination module 402 is used to determine whether a preset purification condition is met according to the task status;

[0160] The control module 403 is configured to control the purification system to purify the air in the indoor space if the preset purification condition is met.

[0161] In an embodiment provided by the present invention, the first detection module includes:

[0162] A first detection submodule, configured to detect the number of printed pages of a printing task executed by the at least one printing device;

[0163] The determining module includes:

[0164] A first determination submodule is used to determine a page number threshold;

[0165] a judgment submodule, configured to judge whether the number of printed pages of the printing task executed by the at least one printing device is greater than the page number threshold;

[0166] The second determining submodule is configured to determine that a preset purification condition is satisfied if the number of printed pages of the printing task executed by the at least one printing device is greater than the page number threshold.

[0167] In one embodiment, the first detection submodule includes:

[0168] The detection unit is used to detect the number of pages printed continuously during the execution of a printing task by the at least one printing device.

[0169] In an embodiment provided by the present invention, the first determining submodule includes:

[0170] A first determining unit is configured to determine a device type of the at least one printing device and a size of the indoor space;

[0171] An acquiring unit, configured to acquire a mapping relationship for the page number threshold; the mapping relationship indicates the page number threshold corresponding to different device types and different space sizes;

[0172] The second determining unit is configured to determine a target page number threshold according to the device type, the space size, and the mapping relationship.

[0173] In an embodiment provided by the present invention, the control module includes:

[0174] A third determining submodule is configured to determine whether the indoor space is in a ventilated state or a closed state;

[0175] a first control submodule, configured to control the purification system to purify the air in the indoor space according to a first working mode if the indoor space is in a ventilation state;

[0176] The second control submodule is used to control the purification system to purify the air in the indoor space according to a second working mode if the indoor space is in a closed state; wherein the purification intensity of the first working mode is lower than the purification intensity of the second working mode.

[0177] In one embodiment provided by the present invention, the doors and windows of the indoor space are provided with status sensors;

[0178] The third determining submodule includes:

[0179] an acquisition unit, configured to acquire the door and window opening and closing states detected by the state sensor;

[0180] The third determining unit is configured to determine whether the indoor space is in a ventilated state or a closed state according to the open and closed states of the doors and windows.

[0181] In an embodiment provided by the present invention, before detecting the task status of the at least one printing device executing the printing task, the method further includes:

[0182] A second detection module is used to detect whether a user enters the indoor space;

[0183] The first detection module includes:

[0184] The second detection submodule is configured to detect the task status of the at least one printing device executing a printing task after detecting that a user enters the indoor space.

[0185] The present invention introduces an air purification device for an indoor space, wherein the indoor space has at least one printing device and a purification system. The method includes: detecting the task status of at least one printing device executing a printing task; determining whether preset purification conditions are met based on the task status; and if the preset purification conditions are met, the purification system purifies the air in the indoor space. By controlling the purification function based on the printer task status, the purification intensity can be reduced to save energy when there are few printing tasks, and the purification can be more thorough and effective when there are many printing tasks. This solves the problems of low efficiency and energy waste in the fixed mode operation of existing air purification systems, improves the air quality of indoor spaces with printers, and dynamically adjusts the purification system operation strategy based on the printing task, achieving a balance between precise control, energy saving and consumption reduction, and health protection.

[0186] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0187] An embodiment of the present invention further provides an electronic device, including:

[0188] It includes a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, the various processes of the above-mentioned indoor space air purification method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0189] An embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the various processes of the above-mentioned indoor space air purification method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0190] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0191] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, apparatus, or computer program products. Thus, embodiments of the present invention may take the form of a fully hardware embodiment, a fully software embodiment, or an embodiment combining software and hardware. Furthermore, embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0192] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0193] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0194] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0195] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0196] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0197] The above is a detailed introduction to an indoor space air purification method and an indoor space air purification device provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A method for purifying indoor air, characterized in that: The indoor space has at least one printing device and a purification system, and the method includes: Detecting the number of printed pages of a printing task executed by the at least one printing device; Determine page count threshold; Determining whether the number of printed pages of the print task executed by the at least one printing device is greater than the page number threshold; If the number of pages printed by the at least one printing device in executing the printing task is greater than the page number threshold, it is determined that a preset purification condition is met; if the preset purification condition is met, the purification system is controlled to purify the air in the indoor space; The controlling the purification system to purify the air in the indoor space includes: Determining whether the indoor space is in a ventilated state or a closed state; If the indoor space is in a ventilation state, controlling the purification system to purify the air in the indoor space according to a first working mode; If the indoor space is in a closed state, controlling the purification system to purify the air in the indoor space according to a second working mode; wherein the purification intensity of the first working mode is lower than the purification intensity of the second working mode; The step of determining the page number threshold includes: Determining a device type of the at least one printing device and determining a size of the indoor space; Obtaining a mapping relationship for the page number threshold; the mapping relationship indicates the page number threshold corresponding to different device types and different space sizes; A target page number threshold is determined according to the device type, the space size, and the mapping relationship.

2. The indoor air purification method according to claim 1, characterized in that: The detecting the number of printed pages of the printing task executed by the at least one printing device includes: The number of pages printed continuously during the execution of the printing task by the at least one printing device is detected.

3. The indoor air purification method according to claim 1, characterized in that: The doors and windows of the indoor space are provided with status sensors; The determining whether the indoor space is in a ventilated state or a closed state includes: Obtaining the door and window opening and closing states detected by the state sensor; According to the opening and closing status of the doors and windows, it is determined whether the indoor space is in a ventilated state or a closed state.

4. The indoor air purification method according to claim 1, characterized in that: Before detecting the task status of the at least one printing device executing the printing task, the method further includes: Detecting whether a user enters the indoor space; The detecting the task status of the at least one printing device executing the printing task includes: After detecting that a user enters the indoor space, detecting a task status of the at least one printing device executing a printing task.

5. An indoor air purification device, characterized in that: The indoor space has at least one printing device and a purification system, and the device includes: A first detection module is used to detect the task status of the at least one printing device executing the printing task; A determination module, configured to determine whether a preset purification condition is met according to the task status; a control module, configured to control the purification system to purify the air in the indoor space if the preset purification condition is met; The first detection module includes: A first detection submodule, configured to detect the number of printed pages of a printing task executed by the at least one printing device; The determining module includes: A first determination submodule is used to determine a page number threshold; a judgment submodule, configured to judge whether the number of printed pages of the printing task executed by the at least one printing device is greater than the page number threshold; A second determination submodule for determining whether a preset purification condition is satisfied if the number of printed pages of the at least one printing device performing the print task is greater than the page threshold; The control module includes: A third determining submodule is configured to determine whether the indoor space is in a ventilated state or a closed state; a first control submodule, configured to control the purification system to purify the air in the indoor space according to a first working mode if the indoor space is in a ventilation state; a second control submodule, configured to control the purification system to purify the air in the indoor space according to a second operating mode if the indoor space is in a closed state; wherein the purification intensity of the first operating mode is lower than the purification intensity of the second operating mode; The first determining submodule includes: A first determining unit is configured to determine a device type of the at least one printing device and a size of the indoor space; An acquiring unit, configured to acquire a mapping relationship for the page number threshold; the mapping relationship indicates the page number threshold corresponding to different device types and different space sizes; The second determining unit is configured to determine a target page number threshold according to the device type, the space size, and the mapping relationship.

6. An electronic device, characterized in that: include: A processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the indoor space air purification method according to any one of claims 1 to 4 are implemented.

7. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the indoor space air purification method according to any one of claims 1 to 4 are implemented.

Images