Indoor space air purification method, device and equipment and storage medium

Abstract

The embodiment of the invention provides an indoor space air purification method, device and equipment and a storage medium, the indoor space is provided with at least one printing device and a purification system, and the method comprises the steps that the task condition of at least one printing device executing a printing task is detected; determining whether a preset purification condition is met or not according to the task condition; and if the preset purification condition is met, the purification system carries out air purification on the indoor space. The purification function is controlled according to the task condition of the printer, the purification intensity can be reduced and energy can be saved when printing tasks are few, purification can be more thorough and effective when the printing tasks of the printer are many, and the problems that an existing air purification system is low in fixed mode operation efficiency and wastes energy are solved. According to the technical scheme, the air quality of the indoor space of the printer is improved, the operation strategy of the purification system is dynamically adjusted according to the printing task, and the balance of accurate control, energy conservation, consumption reduction and health protection is achieved.

Description

Technical Field

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

[0002] In a modern office environment, a printing room is usually equipped with multiple printers to meet high-frequency printing needs. However, during operation, printers generate various air pollutants, including particulate matter (such as PM2.5), volatile organic compounds, and other harmful gases, which can significantly affect the indoor air quality, thereby endangering the health of staff and reducing work efficiency.

[0003] Currently, most air purification systems in printing rooms operate in a fixed-power mode, which means that regardless of the changes in the state of the doors and windows and the printing volume in the printing room, the air purification equipment operates at a constant power. This traditional air purification method has significant drawbacks: it may not only lead to energy waste, but also may not be able to effectively purify the air when the printer has a heavy workload, thus having an adverse impact on the indoor air quality. Summary of the Invention

[0004] In view of the above problems, embodiments of the present invention are proposed to provide an air purification method for an indoor space, an air purification device for an indoor space, 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, embodiments of the present invention disclose an air purification method for an indoor space, where the indoor space has at least one printing device and a purification system, and the method includes: Detecting the task status of the at least one printing device performing a printing task; Determining whether a preset purification condition is satisfied according to the task status; If the preset purification condition is satisfied, controlling the purification system to purify the air in the indoor space.

[0006] Optionally, the detecting the task status of the at least one printing device performing a printing task includes: Detecting the number of printed pages of the at least one printing device performing a printing task; The determining whether a preset purification condition is satisfied according to the task status includes: Determining a page threshold; Judging whether the number of printed pages of the at least one printing device performing a printing task is greater than the page threshold; If the number of printed pages of the at least one printing device executing a printing task is greater than the page threshold, it is determined that a preset purification condition is satisfied.

[0007] Optionally, the detecting the number of printed pages of the at least one printing device executing a printing task includes: Detecting the number of continuously printed pages during the process of the at least one printing device executing a printing task.

[0008] Optionally, the determining the page threshold includes: Determining the device type of the at least one printing device and determining the space size of the indoor space; Obtaining a mapping relationship for the page threshold; the mapping relationship represents the page threshold corresponding to different device types and different space sizes; Determining a target page threshold according to the device type, the space size, and the mapping relationship.

[0009] Optionally, 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 ventilated 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 that of the second working mode.

[0010] Optionally, state sensors are provided on the doors and windows of the indoor space; The determining whether the indoor space is in a ventilated state or a closed state includes: Obtaining the opening and closing states of the doors and windows detected by the state sensors; Determining whether the indoor space is in a ventilated state or a closed state according to the opening and closing states of the doors and windows.

[0011] Optionally, before detecting the task status of the at least one printing device executing a printing task, it further includes: Detecting whether a user enters the indoor space; The detecting the task status of the at least one printing device executing a printing task includes: After detecting that a user enters the indoor space, detecting the task status of the at least one printing device executing a printing task.

[0012] In a second aspect of the embodiments of the present invention, an air purification device for an indoor space is disclosed. The indoor space has at least one printing device and a purification system. The device includes: A first detection module, configured to detect the task status of the at least one printing device when performing a 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.

[0013] Optionally, the first detection module includes: A first detection sub-module, configured to detect the number of printed pages of the at least one printing device when performing a printing task; The determination module includes: A first determination sub-module, configured to determine a page number threshold; A judgment sub-module, configured to judge whether the number of printed pages of the at least one printing device when performing a printing task is greater than the page number threshold; A second determination sub-module, configured to determine that the preset purification condition is met if the number of printed pages of the at least one printing device when performing a printing task is greater than the page number threshold.

[0014] Optionally, the first detection sub-module includes: A detection unit, configured to detect the number of consecutive printed pages during the process of the at least one printing device performing a printing task.

[0015] Optionally, the first determination sub-module includes: A first determination unit, configured to determine the device type of the at least one printing device and the size of the indoor space; An acquisition unit, configured to acquire a mapping relationship for the page number threshold; the mapping relationship represents the page number thresholds corresponding to different device types and different space sizes; A second determination unit, configured to determine a target page number threshold according to the device type, the space size, and the mapping relationship.

[0016] Optionally, the control module includes: A third determination sub-module, configured to determine whether the indoor space is in a ventilation state or a closed state; A first control sub-module, 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 sub-module, configured 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 that of the second working mode.

[0017] Optionally, state sensors are provided on the doors and windows of the indoor space; The third determination sub-module includes: An acquisition unit, configured to acquire the opening and closing states of the doors and windows detected by the state sensors; A third determination unit, configured to determine whether the indoor space is in a ventilation state or a closed state according to the opening and closing states of the doors and windows.

[0018] Optionally, before detecting the task status of the at least one printing device executing a printing task, it further includes: A second detection module, configured to detect whether a user enters the indoor space; The first detection module includes: A second detection sub-module, 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.

[0019] In a third aspect of an embodiment of the present invention, an electronic device is disclosed, including: a processor, a memory, and a computer program stored on the memory and capable of running on the processor, where when the computer program is executed by the processor, the steps of the air purification method for the indoor space as described above are implemented.

[0020] In a fourth aspect of an embodiment of the present invention, a computer-readable storage medium is disclosed, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the air purification method for the indoor space as described above are implemented.

[0021] The embodiments of the present invention have the following advantages: The present invention introduces an air purification method for an indoor space. The indoor space has at least one printing device and a purification system. The method includes: detecting the task status of the at least one printing device executing a printing task; determining whether a preset purification condition is satisfied according to the task status; if the preset purification condition is satisfied, the purification system purifies the air in the indoor space. By controlling the purification system according to the printer task status, the purification intensity can be reduced to save energy when the printing task is small, and the purification intensity can also be increased when the printer printing task is large, and the purification is more thorough and effective. It solves the problems of low operating efficiency and energy waste of the existing air purification system in a fixed mode, improves the air quality of the indoor space with a printer, and realizes the efficient utilization of energy at the same time. Description of the Drawings

[0022] Figure 1 It is a flowchart of the steps of an air purification method for an indoor space provided by an embodiment of the present invention; Figure 2 It is a flowchart of the steps of another air purification method for an indoor space provided by an embodiment of the present invention; Figure 3 It is a schematic diagram of the steps of another air purification method for an indoor space provided by an embodiment of the present invention; Figure 4 It is a structural block diagram of an air purification device for an indoor space provided by an embodiment of the present invention. Detailed implementation manners

[0023] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0024] As an indispensable tool in the modern office environment, the impact of printers on air quality is mainly reflected in the following aspects: Ultra-fine particles (UFPs): Laser printers may release particles with a diameter < 0.1 micron during the high-temperature fusing process, which may deposit in the lungs or even enter the blood circulation after inhalation. The concentration of UFPs during the operation of some models can reach more than 10 times the background value. Toner leakage: Inferior or damaged toner cartridges may cause toner to disperse, and the contained carbon black, heavy metals (such as cadmium, lead), and resin components may cause respiratory irritation.

[0025] Volatile organic compounds (VOCs): Printers release a small amount of VOCs (such as benzene, formaldehyde, ozone) during operation, mainly from toner / ink. Solvent-based ink releases more VOCs than water-based ink; the high-voltage corona discharge of laser printers generates ozone, and long-term exposure may cause sore throat and cough. Generally, the release amount is higher in the initial stage of new printers or consumables and gradually decreases with use. Other chemical substances such as plasticizers and flame retardants, printer plastic parts may release substances such as phthalates, especially in high-temperature environments.

[0026] Paper dust, when printing frequently or using recycled paper, the dust generated by paper friction may exacerbate indoor particulate pollution.

[0027] The emissions generated during its operation pose a threat to indoor air quality and human health that cannot be ignored. In particular, fine particulate matter PM2.5 has the characteristics of small particle size, complex composition, and easy accumulation indoors. Fine particulate matter PM2.5 (particulate matter with an aerodynamic diameter ≤ 2.5 microns) as an important component of indoor air pollution, due to its small particle size and strong penetration ability, can penetrate deep into the human alveoli and even enter the blood circulation system, causing multiple health hazards to the respiratory system, cardiovascular system, etc.

[0028] The fine particulate matter generated during the operation of printers has unique physical and chemical characteristics and emission patterns. In-depth understanding of these characteristics is the basis for effectively controlling PM2.5 pollution in the printing room. Research shows that the emission mechanism of PM2.5 during the printing process is mainly closely related to processes such as high-temperature fixing of toner, release of paper volatiles, and mechanical wear of equipment. When a laser printer is working, the temperature of the heating component can reach above 200 °C. This process not only melts the toner and attaches it to the paper but also causes some toner components to volatilize and form ultrafine particles. Although inkjet printers do not involve high-temperature processes, volatile organic compounds in the ink may also form secondary particles. In addition, the paper will release trace amounts of organic substances such as formaldehyde at high temperatures, and the friction of the moving parts inside the printer will generate trace amounts of metal particles. These substances together constitute the complex components of PM2.5 in the printing room.

[0029] The problem of PM2.5 pollution in the printing room has its particularity. On the one hand, the particle size distribution of the particulate matter emitted by printers is unique, mainly concentrated in the range of ultrafine particles of 0.1 - 1 μm. Such particles have a larger specific surface area and are more likely to adsorb toxic and harmful substances such as heavy metals and polycyclic aromatic hydrocarbons. On the other hand, the printing room is usually relatively enclosed in space, people stay for a long time, and pollutants are not easily dispersed, resulting in an increased exposure risk.

[0030] One of the core concepts of the embodiments of the present invention is to propose an air purification method for an indoor space with at least one printing device and a purification system. By detecting the task status of the printing device performing the printing task, the air purification system is controlled to purify the air, solving the problems of low operating efficiency and energy waste in the existing fixed-mode air purification system, significantly improving the air quality in the printing room, and at the same time achieving efficient utilization of energy.

[0031] Refer to Figure 1 , which shows the step flowchart of an air purification method for an indoor space provided by the embodiments of the present invention. The indoor space has at least one printing device and a purification system. The method may specifically include the following steps: Step 101, detecting the task status of the at least one printing device performing the printing task; In this embodiment, the indoor space can be a printing room or a printing shop, or an office or a study with a printer. The printing device can be an inkjet printer or a laser printer. The present invention does not limit this. Obtaining the task status of the printing device performing the printing task can scientifically manage the purification device specifically according to the specific printing device and task situation. The task status of the specific printing task can be obtained through a detection module installed near the printer.

[0032] For example, a printer operation detection module can be installed near the printer to determine whether the printer is in an operating state. The operating state of the printer in the printing room is detected by a sensor. For example, the movement of the printer's toner cartridge is detected by an infrared sensor to detect the movement of the printer's toner cartridge or other mechanical actions. For example, the infrared sensor can be a small device, usually installed inside or near the printer housing.

[0033] A print job page count monitoring module can also be set up to obtain the total number of pages of the print job through the printer driver or the print server. The data can be transmitted to the central controller via the network or directly read through the built-in sensor of the printer. The printer driver or print server software is installed in the corresponding computer system. The built-in sensor is installed inside the printer. For example, the paper counter is usually located near the paper inlet or outlet of the printer.

[0034] Step 102: Determine whether the preset purification condition is met according to the task status. In this embodiment, a system control module can also be set up to integrate the task status data of the indoor printing device performing the printing task through the central controller, so as to realize the intelligent control of the air purification system. The system control module can be a computer or microcontroller with data processing and communication capabilities. It can be a PC, an embedded controller or an industrial control unit. The central controller can be installed inside the indoor space with the printing device or in a control cabinet or wall-mounted chassis near it.

[0035] Step 103: If the preset purification condition is met, control the purification system to purify the air in the indoor space.

[0036] After obtaining the task status data of the printing device performing the printing task, it is determined whether the preset purification condition is met. The emissions of the printing device are affected by various factors. Traditional printing room purification systems often adopt a continuous operation or timed start-stop mode, and cannot adjust the purification intensity according to the actual working state of the printer, resulting in energy consumption waste or pollution control lag. Or when there are few print jobs and the emissions can dissipate on their own, the corresponding purification function is controlled according to the specific print job performed and the corresponding preset conditions are met.

[0037] The present invention introduces an air purification method for an indoor space. 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 performing a printing task; determining whether a preset purification condition is met according to the task status; if the preset purification condition is met, the purification system purifies the air in the indoor space. By controlling the purification function according to the printer task status, the purification intensity can be reduced to save energy when the printing task is less, and the purification can be more thorough and effective when the printer has a lot of printing tasks, solving the problems of low operating efficiency and energy waste in the existing fixed-mode air purification system, improving the air quality of the indoor space with a printer, and realizing the balance of precise control, energy conservation and consumption reduction, and health protection according to the technical solution of dynamically adjusting the operation strategy of the purification system according to the printing task.

[0038] Referring to Figure 2 , the flowchart of steps of another air purification method for an indoor space provided by an embodiment of the present invention is shown. The indoor space has at least one printing device and a purification system. The method may specifically include the following steps: Step 201, detecting whether a user enters the indoor space; The air purification of the indoor space in the present invention is mainly to prevent the harm of air pollutants to human health. Therefore, if there is no one in the indoor space, it is not necessary to turn on the air purification system and wait for natural dissipation. Therefore, first, it is detected whether a user enters the indoor space where a printing task is being performed, and then it is decided whether to turn on the purification, so that the purification system can be turned off to save energy when there is no one in the indoor space.

[0039] For the detection of personnel, a motion sensor can be used for detection, such as a passive infrared sensor (PIR), which judges whether someone enters the room by detecting the change in infrared radiation emitted by the human body. This kind of sensor has low cost and is easy to install, but it may be insensitive to a stationary human body. A microwave radar sensor can also be used, which detects moving objects using the principle of microwave reflection. Compared with the PIR sensor, it can better identify subtle movements, but the price is relatively high. Or a camera with intelligent analysis function can identify human silhouettes or facial features, and then judge the entry and exit of personnel. This method complies with relevant laws and regulations when in use and takes appropriate data protection measures.

[0040] In addition, a door magnetic switch installed on the door frame can trigger an alarm or signal when the door is opened or closed, indirectly indicating that someone has entered the room. Bluetooth beacons or Wi-Fi probe technology can also be used. When a user carrying a corresponding device (such as a smartphone) approaches, the system can capture the signal and record it. Also, a pressure-sensitive pad is laid at the entrance or a sensor under the floor is installed, and a signal will be sent to notify the system when someone steps on it.

[0041] Step 202, after detecting that the user enters the indoor space, detect the task status of the at least one printing device performing a printing task; In one embodiment, step 202 may include the following sub-steps: Sub-step S11, detect the number of printed pages of the at least one printing device performing a printing task; There is a significant positive correlation between the number of printed pages of a printer and pollutant emissions, and the correlation is mainly reflected in three aspects: the consumption of consumables, the working principle of the device, and the pollutant treatment efficiency.

[0042] First, the consumption of consumables drives emissions. An increase in the number of printed pages directly leads to an increase in the consumption of consumables such as ink / toner and paper. The toner consumption per page of a laser printer is about 0.05g - 0.1g, and the ink consumption per page of an inkjet printer is about 0.1ml - 0.3ml46. Volatile organic compounds (VOCs), heavy metals (such as cadmium and lead), and resin components in the consumables are released during 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, the toner volatilizes and releases ultrafine particulate matter (UFPs, diameter < 0.1μm), and its concentration can reach more than 10 times the background value.

[0043] Second, the operating intensity of the device has an impact. In the continuous printing mode, the high-frequency operation of the device exacerbates mechanical wear and generates metal dust (such as toner cartridge wear particles). Research shows that the particulate matter emissions for continuous printing of 50 pages increase by 30% - 50% compared to single-page printing4. In addition, high-load operation causes the device temperature to rise, accelerating the volatilization of VOCs.

[0044] In one embodiment provided by the present invention, detecting the task status of the at least one printing device performing a printing task mainly refers to the number of printed pages of a single printing task of the printing device, and the total number of printed pages information of the printing task can be obtained through the printer driver or the print server. The data can be transmitted to the central controller through the network, or directly read through the built-in sensor of the printer.

[0045] In one embodiment, sub-step S11 may include the following sub-steps: Sub-step S111, detect the number of continuously printed pages during the process of the at least one printing device performing a printing task.

[0046] In an embodiment provided by the present invention, according to actual tests, the PM2.5 concentration in the printing room is usually between 50 μg / m³ and 200 μg / m³, and the specific value is affected by factors such as printer type and usage frequency. Through experiments by the Chinese Research Academy of Environmental Sciences: in a 15 m³ chamber, continuously printing 100 pages, the concentration rises from 15 to 120 μg / m³ (the single-page emission is about 10.5 μg / page). For example, the law of change of the particulate matter emission concentration of a laser printer with time is: the start-up stage is from 0 to 2 minutes, the concentration rises rapidly, the stable emission plateau stage is from 2 minutes to the end of printing, and the concentration decay stage is from 5 to 10 minutes after printing is completed.

[0047] If the printing task is stopped midway, the pollutant emissions in the indoor space will also stop, and at the same time, the pollutant concentration in the indoor space will decrease with time. If the printing task is continued after a long time, it is equivalent to starting a new printing task, and the previously printed pages will no longer be counted for reference to the preset page threshold, and the page count of the printing task executed by the printing device detected in the present invention needs to be recounted.

[0048] Adaptively, the number of printed pages for detecting at least one printing device executing a printing task should be the continuously printed number of pages. The 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.

[0049] It should be noted that the number of task pages of the printing task mentioned in this embodiment and the following embodiments is not limited to one printer. As long as it is within the same "continuous" printing task, the total number of printed pages of at least one printing device is regarded as the page parameter for determining the page threshold in this printing task. Counting the "continuous" number of printed pages can more scientifically and accurately control the purification system to make the air purification quality higher.

[0050] Step 203, determine whether the preset purification condition is satisfied according to the task status; In one embodiment, the step 203 may include the following sub-steps: Sub-step S21, determine the page threshold; Generally speaking, the more pages are printed, the more toner or ink is consumed, which will lead to an increase in the total emissions of the above-mentioned various pollutants. However, it should be noted that the single-page emission is not always constant; for example, pages with a high image coverage rate usually consume more materials and release more pollutants compared to text-based pages. Even if the amount of pollutants emitted per page is relatively small, with the accumulation of the printing quantity, especially in a closed space where printers are used for a long time without proper ventilation measures, the indoor air quality may decline significantly.

[0051] In an embodiment provided by the present invention, an appropriate printing page number threshold can be calculated according to different printing devices and printing types for determination, and different page number thresholds correspond to different purification modes.

[0052] In one embodiment, the sub-step S21 may include the following sub-steps: Sub-step S211, determining the device type of the at least one printing device and determining the spatial size of the indoor space; Since different types of printing devices (such as laser printers and inkjet printers) produce different types and amounts of pollutants; at the same time, the size of the indoor space directly affects the time and intensity required for air purification. Therefore, dynamically adjusting the page number threshold according to the device type and spatial size helps to improve the intelligence of air purification control.

[0053] Laser printers mainly release toner dust (including elemental carbon and organic carbon) and metal particles, with particle sizes concentrated in the range of 0.1 - 1 μm, which are easily accumulated indoors. Actual measurements show that for every 100 pages of laser documents printed, the PM2.5 concentration can increase to 60 μg / m³ (2.4 times higher than the WHO daily limit). Inkjet printers emit fewer particulate matters, but still release a small amount of secondary VOCs particles when using solvent-based inks.

[0054] Regarding the gaseous pollutant VOCs, it mainly comes from solvents in the ink / toner (such as toluene and xylene); Ozone (O3): Ozone is generated by the high-voltage corona discharge of laser printers, and 0.1 mg - 0.5 mg can be released per thousand pages printed, and the emissions of old equipment are even higher.

[0055] For the size of the indoor space, when the total amount of PM2.5 released by the printer is constant, the larger the indoor space, the lower the particulate matter concentration. For example, in a 100 m³ space, the PM2.5 concentration of the same printing job is only about 1 / 3 of that in a 30 m³ space, and it can be adjusted according to the space size.

[0056] Sub-step S212, obtaining the mapping relationship for the page number threshold; the mapping relationship represents the page number threshold corresponding to different device types and different spatial sizes; In an embodiment provided by the present invention, the mapping relationship of the page number threshold means that for different types of printing devices in indoor spaces of different sizes, there are corresponding page number thresholds respectively. When the corresponding page number thresholds are reached, the purification device is controlled to purify the indoor air according to the corresponding working mode.

[0057] In a preferred embodiment of the present invention, in order to more accurately determine whether air purification operation needs to be started, the system can pre - establish and store a mapping relation table for determining the page number threshold. This mapping relation reflects the pollutant release and diffusion characteristics between different types of printing devices and the size of the indoor space, so as to realize the intelligent control of the purification trigger conditions.

[0058] Adaptively, the mapping relation can be expressed in various forms such as a table, a function model, a lookup table, or a decision model obtained through machine learning training. Among them, a typical implementation method is to construct a two - dimensional or multi - dimensional lookup table with the type of printing device and the indoor space volume as input variables and the corresponding page number threshold as the output.

[0059] In addition, in some advanced embodiments, other influencing factors can be introduced to optimize the mapping relation. For example: printing density (i.e., the coverage rate of the printed content per page); printing frequency (the number of printed pages per unit time); historical air quality data; user - set preference parameters, etc. These additional information can be collected by sensors or input through the user configuration interface, and further integrated into the mapping relation to improve the intelligence and adaptability of the system. The present invention does not limit this mapping relation.

[0060] Sub - step S213, determine the target page number threshold according to the device type, the space size, and the mapping relation.

[0061] After obtaining the type of printing device and the size of the indoor space, the control system will combine the aforementioned mapping relation to determine the applicable target page number threshold in the current environment.

[0062] In a preferred embodiment, this process can be jointly completed by an embedded controller or a cloud server. For example: deploy a lookup table in the local controller; or deploy a more complex AI model in the cloud platform and send dynamic threshold suggestions to the local through the network.

[0063] For example, inkjet printers use liquid ink and usually release less PM2.5 than laser printers. In a closed space (30 m³), printing about 150 - 200 pages will make the indoor PM2.5 concentration reach 50 μg / m³. When the printer is in poor condition, about 100 - 150 pages can make the concentration reach this value. If an inkjet printer is used, the page number threshold can be adjusted from 50 pages to 150 pages. For example, for a laser printer, in a 30 - square - meter room, the set page number threshold is 100 pages; while in a 15 - square - meter small office, this threshold may be reduced to 50 pages. And in the same 15 - square - meter indoor space, for an inkjet printer, the page number threshold can be increased to 150 pages.

[0064] Embodiments of the present invention can adaptively adjust the page threshold according to different device types and space sizes, avoiding a "one-size-fits-all" judgment method; comprehensively considering printing behavior and environmental factors, the air purification is only activated when necessary, saving energy and extending the device life.

[0065] Sub-step S22, determine whether the number of printed pages of the at least one printing device executing the printing task is greater than the page threshold; If the current number of printed pages exceeds the determined target page threshold, it is considered that the printing task generates a relatively large amount of air pollutants, and the air purification program needs to be activated.

[0066] Sub-step S23, if the number of printed pages of the at least one printing device executing the printing task is greater than the page threshold, determine that the preset purification condition is satisfied.

[0067] When the judgment result is yes, the control system considers 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.

[0068] Step 204, if the preset purification condition is satisfied, control the purification system to purify the air in the indoor space.

[0069] After receiving the air purification trigger signal, the control system will select a suitable purification mode according to different environmental states to achieve an efficient and energy-saving air purification effect.

[0070] In one embodiment, the step 204 may include the following sub-steps: Sub-step S31, determine whether the indoor space is in a ventilated state or a closed state; In one embodiment, the doors and windows of the indoor space are provided with state sensors; the sub-step S31 may include the following sub-steps: Sub-step S311, obtain the opening and closing states of the doors and windows detected by the state sensor; In one embodiment provided by the present invention, this sub-step can detect the ventilation condition of the current room through a state sensor installed on the doors and windows. The state sensor can be a magnetic switch, an infrared sensor or other forms of opening and closing detection devices, and is used to sense the opening or closing state of the doors and windows in real time.

[0071] Sub-step S312, according to the opening and closing states of the doors and windows, determine whether the indoor space is in a ventilated state or a closed state.

[0072] For example, if it is detected that at least one door or window is in an open state, it is determined as the "ventilated state"; if all doors and windows are in a closed state, it is determined as the "closed state".

[0073] Sub-step S32: If the indoor space is in a ventilated state, control the purification system to purify the air in the indoor space according to the first working mode; In a ventilated state, due to the continuous inflow of external air, the concentration of indoor pollutants is relatively low. Therefore, the purification system can operate in the first working mode with a lower power or wind speed. This mode has a lower wind speed and energy consumption, and is suitable for mildly polluted or auxiliary purification scenarios to save energy and avoid unnecessary noise interference.

[0074] Sub-step S33: If the indoor space is in a closed state, control the purification system to purify the air in the indoor space according to the second working mode; wherein, the purification intensity of the first working mode is lower than that of the second working mode.

[0075] In a closed state, the air circulation is restricted and pollutants are likely to accumulate. Therefore, the purification system should switch to the second working mode with higher efficiency, such as increasing the fan speed, to quickly improve the air quality.

[0076] Through this intelligent adjustment strategy based on the environmental state, the system can automatically match the most suitable purification intensity under different conditions, which not only ensures the air quality but also improves the energy efficiency performance and user experience.

[0077] The present invention introduces an air purification method for an indoor space. 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 performing a printing task; determining whether a preset purification condition is satisfied according to the task status; if the preset purification condition is satisfied, the purification system purifies the air in the indoor space. By automatically detecting the printing task status of the printing device after detecting that the user enters the indoor space and dynamically judging whether the purification condition is satisfied based on the number of printed pages, the operation of the air purification system is intelligently controlled. This not only improves the user experience but also effectively realizes on-demand purification, saves energy, and extends the equipment life. In addition, the system can flexibly adjust the purification intensity according to the state (ventilated / closed) of the indoor space, further improving the efficiency and applicability of air purification. By controlling the purification function according to the printer task status, the purification intensity can be reduced to save energy when the printing task is small, and the purification can be more thorough and effective when the printer has a large printing task, solving the problems of low operating efficiency and energy waste in the existing fixed-mode air purification system, improving the air quality of the indoor space with printers, and achieving a balance among precise control, energy conservation and consumption reduction, and health protection according to the technical solution of dynamically adjusting the operation strategy of the purification system according to the printing task.

[0078] Refer to Figure 3 , which shows a schematic diagram of the steps of another air purification method for an indoor space provided by an embodiment of the present invention.

[0079] When a person is detected entering the printing room, the system first determines whether the printer is in a working state through a sensor. If the printer is not working, the control system keeps the purification system closed; if the printer is already turned on, the system then detects the status of the doors and windows of the printing room.

[0080] When the printer is turned on and the doors and windows of the printing room are closed, it is determined whether the printing task exceeds 50 pages. If it exceeds 50 pages, the purification system operates in high gear, with the wind speed set at 2 m / s at this time to quickly reduce the indoor particulate matter concentration. After running for 10 - 15 minutes, the system shuts down; if the number of printed pages does not exceed 50 pages, the purification system operates in medium gear, with a wind speed of 1 m / s, and the system shuts down after running for 10 - 15 minutes.

[0081] When the printer is turned on and the doors and windows are in the open state, there is an exchange of air between the indoor and outdoor environments, and the indoor PM2.5 concentration will be lower than the concentration when the doors and windows are closed. If the number of printed pages exceeds 50 pages, the purification system operates in medium gear, with a wind speed of 1 m / s, and the system shuts down after running for 10 - 15 minutes; if the number of printed pages does not exceed 50 pages, the purification system operates in low gear, with a wind speed of 0.5 m / s, and the system shuts down after running for 10 - 15 minutes to achieve a balance between energy consumption and purification efficiency.

[0082] In addition to the above embodiments, it is also possible to predict the PM2.5 generation amount according to the real-time obtained number of printed pages, the single-page consumable consumption amount, and the printing type, and then generate control instructions including the purification gear and start time based on the PM2.5 generation amount and execute the corresponding purification operations.

[0083] Adaptively, in one embodiment, it is also possible to use a personnel positioning module to detect the position of personnel in the printing room through an infrared sensor; then use an air flow guiding device to adjust the air outlet angle according to the personnel position to reduce PM2.5 exposure.

[0084] In one embodiment, it is also possible to adjust the purification efficiency according to the grayscale printing or color printing of the printing task. Generally, color printing will generate more pollutant emissions, so the working mode gear of the purification system can be increased or the working time can be extended.

[0085] In another embodiment provided by the present invention, an energy-saving mode can also be provided. The system identifies 15:00 - 16:00 every day as the low printing peak period through machine learning; during this period, the standby power of the purification system is automatically reduced, and if a sudden printing task is monitored, it immediately switches to high-power operation.

[0086] The present invention proposes a method for dynamically adjusting the air purification mode based on the status of indoor doors and windows and the number of pages of printing tasks. Through real-time monitoring and intelligent control, the purification intensity is adjusted according to the actual working status of the printer to prevent energy consumption waste or lag in pollution control. It solves the problems of low operating efficiency and energy waste in the existing fixed-mode air purification system, significantly improves the air quality in the printing room, and realizes the efficient utilization of energy at the same time.

[0087] It should be noted that for the method embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the embodiments of the present invention are not limited by the described action sequences, because according to the embodiments of the present invention, some steps can be carried out in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily essential for the embodiments of the present invention.

[0088] Refer to Figure 4 , which shows a structural block diagram of an air purification device for an indoor space provided by an embodiment of the present invention. The indoor space has at least one printing device and a purification system, and specifically may include the following modules: The first detection module 401 is used to detect the task status of the at least one printing device performing a printing task; The determination module 402 is used to determine whether a preset purification condition is satisfied according to the task status; The control module 403 is used to control the purification system to purify the air in the indoor space if the preset purification condition is satisfied.

[0089] In an embodiment provided by the present invention, the first detection module includes: The first detection sub-module is used to detect the number of pages printed by the at least one printing device when performing a printing task; The determination module includes: The first determination sub-module is used to determine the page number threshold; The judgment sub-module is used to judge whether the number of pages printed by the at least one printing device when performing a printing task is greater than the page number threshold; The second determination sub-module is used to determine that the preset purification condition is satisfied if the number of pages printed by the at least one printing device when performing a printing task is greater than the page number threshold.

[0090] In an embodiment, the first detection sub-module includes: The detection unit is used to detect the number of consecutive pages printed by the at least one printing device during the process of performing a printing task.

[0091] In an embodiment provided by the present invention, the first determination sub-module includes: A first determination unit, configured to determine the device type of the at least one printing device and determine the spatial size of the indoor space; An acquisition unit, configured to acquire a mapping relationship for the page number threshold; the mapping relationship represents the page number threshold corresponding to different device types and different spatial sizes; A second determination unit, configured to determine a target page number threshold according to the device type, the spatial size, and the mapping relationship.

[0092] In an embodiment provided by the present invention, the control module includes: A third determination sub-module, configured to determine whether the indoor space is in a ventilated state or a closed state; A first control sub-module, configured to, if the indoor space is in a ventilated state, control the purification system to perform air purification on the indoor space according to a first working mode; A second control sub-module, configured to, if the indoor space is in a closed state, control the purification system to perform air purification on the indoor space according to a second working mode; wherein, the purification intensity of the first working mode is lower than that of the second working mode.

[0093] In an embodiment provided by the present invention, state sensors are provided on the doors and windows of the indoor space; The third determination sub-module includes: An acquisition unit, configured to acquire the opening and closing states of the doors and windows detected by the state sensors; A third determination unit, configured to determine whether the indoor space is in a ventilated state or a closed state according to the opening and closing states of the doors and windows.

[0094] In an embodiment provided by the present invention, before detecting the task status of the at least one printing device executing a printing task, it further includes: A second detection module, configured to detect whether a user enters the indoor space; The first detection module includes: A second detection sub-module, configured to, after detecting that a user enters the indoor space, detect the task status of the at least one printing device executing a printing task.

[0095] The present invention introduces an air purification device for an indoor space. 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 performing a printing task; determining whether a preset purification condition is met according to the task status; if the preset purification condition is met, the purification system purifies the air in the indoor space. By controlling the purification function according to the printer task status, the purification intensity can be reduced to save energy when the printing task is small, and the purification can be more thorough and effective when the printer has a large printing task. This solves the problems of low operating efficiency and energy waste in the existing fixed-mode air purification system, improves the air quality in the indoor space with printers, and realizes the balance of precise control, energy conservation and consumption reduction, and health protection according to the technical solution of dynamically adjusting the operation strategy of the purification system according to the printing task.

[0096] For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple. For the relevant parts, please refer to the partial description of the method embodiment.

[0097] The embodiment of the present invention also provides an electronic device, including: It includes a processor, a memory, and a computer program stored on the memory and capable of running on the processor. When the computer program is executed by the processor, it realizes each process of the above-mentioned air purification method embodiment for the indoor space and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0098] The embodiment of the present invention also provides a computer-readable storage medium. A computer program is stored on the computer-readable storage medium. When the computer program is executed by the processor, it realizes each process of the above-mentioned air purification method embodiment for the indoor space and can achieve the same technical effect. To avoid repetition, it will not be elaborated here.

[0099] Each embodiment in this specification is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same and similar parts among the embodiments, please refer to each other.

[0100] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a device, or a computer program product. Therefore, the embodiments of the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the embodiments of the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.

[0101] Embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows 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 the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal devices generate means for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or multiple blocks.

[0102] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured article including instruction means, and the instruction means implements the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or multiple blocks.

[0103] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device, so that a series of operation steps are executed on the computer or other programmable terminal device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable terminal device provide steps for implementing the functions specified in one flow Figure 1 one flow or multiple flows and / or blocks Figure 1 or multiple blocks.

[0104] Although the preferred embodiments of the embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications to these embodiments once they know the basic creative concepts. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0105] Finally, it should also be noted that in this text, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or terminal device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or terminal device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising the said element.

[0106] The above has introduced in detail an air purification method for an indoor space and an air purification device for an indoor space provided by the present invention. Specific examples are used in this text to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. An air purification method for an indoor space, 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 the at least one printing device performing a printing task; Determining a page number threshold; Judging whether the number of printed pages of the at least one printing device performing a printing task is greater than the page number threshold; If the number of printed pages of the at least one printing device performing a 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.

2. The air purification method for an indoor space according to claim 1, wherein The detecting the number of printed pages of the at least one printing device performing a printing task includes: Detecting the number of consecutive printed pages during the process of the at least one printing device performing a printing task.

3. The air purification method for an indoor space according to claim 1, wherein, The determining the page number threshold includes: Determining the device type of the at least one printing device and determining the size of the indoor space; Obtaining a mapping relationship for the page number threshold; the mapping relationship represents the page number thresholds corresponding to different device types and different space sizes; Determining a target page number threshold according to the device type, the space size and the mapping relationship.

4. The air purification method for an indoor space according to claim 1, wherein, 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 ventilated 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 that of the second working mode.

5. The air purification method for an indoor space according to claim 4, characterized in that, State sensors are provided on the doors and windows of the indoor space; The determining whether the indoor space is in a ventilated state or a closed state includes: Obtaining the opening and closing state of the doors and windows detected by the state sensor; Determining whether the indoor space is in a ventilated state or a closed state according to the opening and closing state of the doors and windows.

6. The air purification method for an indoor space according to claim 1, wherein, Before detecting the task status of the at least one printing device performing a printing task, it further includes: Detecting whether a user enters the indoor space; The detecting the task status of the at least one printing device performing a printing task includes: After detecting that a user enters the indoor space, detecting the task status of the at least one printing device performing a printing task.

7. An air purification device for an indoor space, characterized in that, The indoor space has at least one printing device and a purification system, and the device includes: A first detection module for detecting the task status of the at least one printing device performing a printing task; A determination module for determining whether a preset purification condition is met according to the task status; A control module for controlling 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 sub-module for detecting the number of printed pages of the at least one printing device performing a printing task; The determination module includes: A first determination sub-module for determining a page number threshold; A judgment sub-module for judging whether the number of printed pages of the at least one printing device performing a printing task is greater than the page number threshold; A second determination sub-module, configured to determine that a preset purification condition is satisfied if the number of printed pages of the at least one printing device performing a printing task is greater than the page threshold.

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

9. A computer-readable storage medium, characterized in that, A computer program is stored on the computer-readable storage medium. When the computer program is executed by the processor, the steps of the air purification method for an indoor space according to any one of claims 1-6 are implemented.

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