Determination method and display method of formaldehyde removal amount, electronic equipment and program product

Abstract

The invention provides an aldehyde removal amount determination method, an aldehyde removal amount display method, electronic equipment and a program product. The formaldehyde removal amount determination method comprises the following steps: determining a first release coefficient of formaldehyde released into a target space by a formaldehyde release object according to the formaldehyde concentration in the target space during the period of starting a first-stage formaldehyde removal function of the formaldehyde removal equipment; the first release coefficient represents the change proportion of the formaldehyde concentration in the target space in unit time; after the second-stage formaldehyde removal function of the formaldehyde removal equipment is started, the first clean air output ratio of the formaldehyde removal equipment is determined according to the first release coefficient; and determining the formaldehyde removal amount of the formaldehyde removal equipment according to the first clean air output ratio. The technical problem that an existing formaldehyde removal function lacks a scheme for estimating the formaldehyde removal amount or the formaldehyde removal capacity, and consequently the situation of invalid formaldehyde removal possibly occurs is solved.

Description

Technical Field

[0001] This disclosure relates to the field of smart home technology, and more specifically, to a method for determining and demonstrating formaldehyde removal capacity, electronic devices, and software products. Background Technology

[0002] Indoor air quality (e.g., formaldehyde pollution) is receiving increasing attention. Formaldehyde, a common and highly hazardous volatile organic compound, mainly originates from building materials, furniture, and adhesives. Its release period at room temperature can last for several years, posing a potential threat to human health. Traditional single-method formaldehyde removal (e.g., opening windows for ventilation or using activated carbon) has limitations such as low efficiency, long cycles, and the inability to monitor in real time, making it difficult to meet the needs of modern families for healthy, intelligent, and efficient air management.

[0003] With the rapid development of smart homes, more and more smart home devices are equipped with formaldehyde removal functions. Existing formaldehyde removal functions mainly rely on single-device closed-loop control strategies, lacking solutions for estimating the amount or capacity of formaldehyde removal. They primarily depend on user settings for operation, which may lead to ineffective formaldehyde removal (e.g., ineffective or inefficient purification when formaldehyde release is low). Summary of the Invention

[0004] This disclosure provides a method for determining and displaying the amount of formaldehyde removed, an electronic device, and a program product to address the technical problem that existing formaldehyde removal functions lack solutions for estimating the amount of formaldehyde removed or the formaldehyde removal capacity, which may lead to ineffective formaldehyde removal.

[0005] According to one aspect of the present disclosure, a method for determining the amount of formaldehyde removed is provided. The method includes: during the activation of a first-stage formaldehyde removal function of a formaldehyde removal device, determining a first release coefficient for formaldehyde release from a formaldehyde-releasing object into the target space based on the formaldehyde concentration in the target space; the first release coefficient representing the percentage change in formaldehyde concentration in the target space per unit time; after the formaldehyde removal device activates a second-stage formaldehyde removal function, determining a first clean air output ratio of the formaldehyde removal device based on the first release coefficient; and determining the amount of formaldehyde removed by the formaldehyde removal device based on the first clean air output ratio. Optionally, a first release coefficient for formaldehyde release from the formaldehyde-releasing object into the target space is determined based on the formaldehyde concentration in the target space, including: obtaining the formaldehyde concentration in the target space at different times; and performing exponential fitting based on the formaldehyde concentration at different times to obtain the first release coefficient.

[0006] Optionally, the first clean air output ratio of the formaldehyde removal device is determined based on the first release coefficient, including: determining the first formaldehyde removal amount corresponding to the actual decrease in formaldehyde concentration in the target space within the target time period, the second formaldehyde removal amount under natural equilibrium, and the formaldehyde release amount due to temperature increase; the formaldehyde release amount is determined based on the first release coefficient; the target time period is determined based on the moment when the formaldehyde removal device starts the second stage of formaldehyde removal function and the current moment; the current moment is any moment after the formaldehyde removal device starts the second stage of formaldehyde removal function; the first clean air output ratio is determined based on the first formaldehyde removal amount, the second formaldehyde removal amount, and the formaldehyde release amount.

[0007] Optionally, determining the formaldehyde removal capacity of the formaldehyde removal device based on the first clean air output ratio includes: determining the calibrated second clean air output ratio based on the first clean air output ratio and the calibration coefficient; determining the purification rate of the formaldehyde removal device based on the second clean air output ratio and the formaldehyde concentration in the target space at the current moment; the current moment is any moment after the formaldehyde removal device starts the second stage formaldehyde removal function; and determining the formaldehyde removal capacity of the formaldehyde removal device from the moment the first stage formaldehyde removal function is started to the current moment based on the purification rate of the formaldehyde removal device.

[0008] Optionally, the calibration coefficient is determined by the following methods: determining a second release coefficient for formaldehyde released from the inside of the target space to the outside of the target space when the formaldehyde removal device is not activated; determining a third release coefficient for formaldehyde released from the inside of the target space to the outside of the target space when the formaldehyde removal device is activated; determining a third clean air output ratio based on the second and third release coefficients; and determining the calibration coefficient based on the third clean air output ratio.

[0009] Optionally, the calibration coefficient is determined based on the third clean air output ratio, including: finding the fourth clean air output ratio corresponding to the current air level based on the mapping relationship between the air level and the clean air output ratio; the current air level is the air level that the formaldehyde removal device is turned on when the third release coefficient is determined; and the ratio of the third clean air output ratio to the fourth clean air output ratio is determined as the calibration coefficient.

[0010] Optionally, the mapping relationship between the fan speed limit and the clean air output ratio is determined by the following method: constructing curves showing the change in formaldehyde concentration in the laboratory when the formaldehyde removal equipment is turned on at each fan speed limit for formaldehyde removal; and establishing a mapping relationship between each fan speed limit and its corresponding clean air output ratio based on the formaldehyde concentration change curve corresponding to each fan speed limit.

[0011] According to another aspect of the present disclosure, a method for displaying formaldehyde removal capacity is provided, comprising: receiving a user's touch operation on a target control on an operation interface of a formaldehyde removal device; the operation interface including the target control; and, in response to the operation, displaying the formaldehyde removal capacity of the formaldehyde removal device on the operation interface; the formaldehyde removal capacity is determined according to the above method.

[0012] According to another aspect of the present disclosure, a device for determining the amount of formaldehyde removed is provided. The device includes: a first determining module, configured to determine a first release coefficient for formaldehyde release from a formaldehyde-releasing object into a target space based on the formaldehyde concentration in the target space during the first stage of formaldehyde removal function of the formaldehyde removal device; the first release coefficient represents the percentage change in formaldehyde concentration in the target space per unit time; a second determining module, configured to determine a first clean air output ratio of the formaldehyde removal device based on the first release coefficient after the formaldehyde removal device activates a second stage of formaldehyde removal function; and a third determining module, configured to determine the amount of formaldehyde removed by the formaldehyde removal device based on the first clean air output ratio.

[0013] Optionally, the first determining module includes: an acquisition unit for acquiring formaldehyde concentration at different times within the target space; and a fitting unit for performing exponential fitting based on the formaldehyde concentration at different times to obtain a first release coefficient.

[0014] Optionally, the second determining module includes: a first determining unit, used to determine the first formaldehyde removal amount corresponding to the actual decrease in formaldehyde concentration in the target space within the target time period, the second formaldehyde removal amount under natural equilibrium, and the formaldehyde release amount caused by temperature increase; the formaldehyde release amount is determined based on the first release coefficient; the target time period is determined based on the moment when the formaldehyde removal equipment starts the second stage formaldehyde removal function and the current moment; the current moment is any moment after the formaldehyde removal equipment starts the second stage formaldehyde removal function; and a second determining unit, used to determine the first clean air output ratio based on the first formaldehyde removal amount, the second formaldehyde removal amount, and the formaldehyde release amount.

[0015] Optionally, the third determining module includes: a third determining unit, used to determine the calibrated second clean air output ratio based on the first clean air output ratio and the calibration coefficient; a fourth determining unit, used to determine the purification rate of the formaldehyde removal device based on the second clean air output ratio and the formaldehyde concentration in the target space at the current moment; the current moment is any moment after the formaldehyde removal device starts the second stage formaldehyde removal function; and a fifth determining unit, used to determine the amount of formaldehyde removed by the formaldehyde removal device from the moment the first stage formaldehyde removal function was started to the current moment based on the purification rate of the formaldehyde removal device.

[0016] Optionally, the device further includes a fourth determining module, which includes: a sixth determining unit for determining a second release coefficient of formaldehyde released from the inside of the target space to the outside of the target space when the formaldehyde removal device is not activated; a seventh determining unit for determining a third release coefficient of formaldehyde released from the inside of the target space to the outside of the target space when the formaldehyde removal device is activated; an eighth determining unit for determining a third clean air output ratio based on the second and third release coefficients; and a ninth determining unit for determining a calibration coefficient based on the third clean air output ratio.

[0017] Optionally, the ninth determining unit includes: a lookup subunit, used to look up the fourth clean air output ratio corresponding to the current air level based on the mapping relationship between the air level and the clean air output ratio; the current air level is the air level that the formaldehyde removal device turns on when determining the third release coefficient; and a determining subunit, used to determine the ratio of the third clean air output ratio to the fourth clean air output ratio as the calibration coefficient.

[0018] Optionally, the device further includes a fifth determining module, which includes: a first processing unit, used to construct the formaldehyde concentration change curve in the laboratory when the formaldehyde removal equipment is turned on at each fan speed for formaldehyde removal; and a second processing unit, used to establish a mapping relationship between each fan speed and its corresponding clean air output ratio based on the formaldehyde concentration change curve corresponding to each fan speed.

[0019] According to another aspect of the present disclosure, a device for displaying formaldehyde removal capacity is provided, comprising: a receiving module for receiving a user's touch operation on a target control on an operating interface of the formaldehyde removal device; the operating interface includes the target control; and a response module for displaying the formaldehyde removal capacity of the formaldehyde removal device on the operating interface in response to the operation; the formaldehyde removal capacity is determined according to the above method.

[0020] According to another aspect of the present disclosure, an electronic device is provided, comprising: a memory, a processor, and a computer program stored in the memory, wherein the processor executes the computer program to implement the above-described method.

[0021] According to another aspect of the present disclosure, a computer-readable storage medium is provided that stores a computer program thereon, which, when executed by a processor, implements the above-described method.

[0022] According to another aspect of the present disclosure, an application is provided for use on a terminal device connected to home appliances, the application being configured to perform the above-described method.

[0023] The beneficial effects of the technical solutions provided in this disclosure are: By combining the formaldehyde removal process with the evaluation of the formaldehyde removal amount, the formaldehyde removal effect of the purification can be quantified, thereby improving the operational efficiency of formaldehyde purification and avoiding the problem of ineffective or inefficient purification when formaldehyde release is not significant. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below.

[0025] Figure 1 A flowchart illustrating a method for determining the amount of formaldehyde removed, provided in an embodiment of this disclosure; Figure 2 This is a flowchart illustrating a method for demonstrating formaldehyde removal capacity according to an embodiment of the present disclosure; Figure 3 This is a schematic diagram of the operation interface of a formaldehyde removal device according to an embodiment of the present disclosure; Figure 4 This is a schematic diagram of the operation interface of a formaldehyde removal device according to an embodiment of the present disclosure; Figure 5 This is a schematic diagram of a device for determining the amount of formaldehyde removed, provided in an embodiment of this disclosure. Figure 6 This is a schematic diagram of the structure of a formaldehyde removal capacity display device provided in an embodiment of the present disclosure; Figure 7 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this disclosure. Detailed Implementation

[0026] The embodiments of this disclosure are described below with reference to the accompanying drawings. It should be understood that the embodiments described below with reference to the accompanying drawings are exemplary descriptions for explaining the technical solutions of the embodiments of this disclosure, and do not constitute a limitation on the technical solutions of the embodiments of this disclosure.

[0027] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the terms “comprising” and “including” as used in embodiments of this disclosure mean that the corresponding feature can be implemented as the presented feature, information, data, step, operation, element, and / or component, but do not exclude implementation as other features, information, data, step, operation, element, component, and / or combinations thereof supported by the art. It should be understood that when we say that an element is “connected” or “coupled” to another element, the one element can be directly connected or coupled to the other element, or it can mean that the one element and the other element are connected through an intermediate element. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein indicates at least one of the items defined by the term, for example, “A and / or B” or “A, B” indicates implementation as “A,” or implementation as “B,” or implementation as “A and B.”

[0028] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0029] With the rapid development of smart homes, more and more smart home devices are equipped with formaldehyde removal functions. Existing formaldehyde removal functions mainly rely on single-device closed-loop control strategies, lacking solutions for estimating the amount or capacity of formaldehyde removal. They primarily depend on user settings for operation, which may lead to ineffective formaldehyde removal (e.g., ineffective or inefficient purification when formaldehyde release is low).

[0030] The methods for determining and demonstrating formaldehyde removal capacity, electronic devices, and program products disclosed herein are intended to solve at least one of the above-mentioned technical problems in the prior art.

[0031] The following description of several exemplary embodiments illustrates the technical solutions of this disclosure and the technical effects produced by these solutions. It should be noted that the following embodiments can be referenced, learned from, or combined with each other. Identical terms, similar features, and similar implementation steps in different embodiments will not be repeated.

[0032] This disclosure provides a method for determining the amount of formaldehyde removed, such as... Figure 1 As shown, the method includes the following steps: S101, during the first stage of formaldehyde removal function of the formaldehyde removal equipment, the first release coefficient of formaldehyde release from the formaldehyde release object into the target space is determined according to the formaldehyde concentration in the target space; the first release coefficient represents the proportion of change in formaldehyde concentration in the target space per unit time.

[0033] According to some optional embodiments of this disclosure, the first stage of formaldehyde removal function refers to the stage when the formaldehyde removal equipment starts the steaming function. The steaming function refers to starting the heating equipment or using a humidifier to raise the indoor temperature and humidity (e.g., 35–45°C, relative humidity above 60%), closing the doors and windows, maintaining the high temperature and high humidity state for several hours, and causing the pollution source to continuously release formaldehyde.

[0034] According to some optional embodiments of this disclosure, the first release coefficient is the release coefficient of formaldehyde released from a formaldehyde source (e.g., furniture such as wardrobes) into the room. This release coefficient is used to represent the percentage change in formaldehyde concentration in the room per unit time. According to some optional embodiments of this disclosure, the formaldehyde removal device that performs the formaldehyde evaporation function is a heating device, such as an air conditioner or a smart heater.

[0035] In this step, formaldehyde concentration is monitored in real time by a sensing unit. This sensing unit includes at least one high-precision formaldehyde sensor (preferably an electrochemical sensor or a photoelectric photometric sensor) to monitor formaldehyde concentration at a frequency of at least once per minute. It is recommended to integrate a temperature and humidity sensor to collect environmental parameters for subsequent algorithm correction.

[0036] S102, after the formaldehyde removal equipment starts the second stage of formaldehyde removal function, the first clean air output ratio of the formaldehyde removal equipment is determined according to the first release coefficient.

[0037] According to some optional embodiments of this disclosure, the second stage of formaldehyde removal function refers to the stage when the formaldehyde removal equipment starts its formaldehyde removal and purification function. The purification function refers to the removal capability of the formaldehyde removal equipment (such as air purifiers, fresh air systems, air conditioners, etc.) specifically designed for harmful gases such as formaldehyde.

[0038] According to some optional embodiments of this disclosure, after entering the formaldehyde removal and purification function stage, the natural release amount of formaldehyde in the room at the current temperature is determined by the first release coefficient, thereby determining the Clean Air Delivery Rate (CADR) of the formaldehyde removal equipment. CADR, also known as Clean Air Volume, is an important indicator for measuring the purification efficiency of formaldehyde removal equipment. CADR represents how many cubic feet (or cubic meters) of clean air the formaldehyde removal equipment can deliver per unit time. The higher the value, the stronger and faster the purification capacity of the formaldehyde removal equipment.

[0039] According to some optional embodiments of this disclosure, the formaldehyde removal device performing the formaldehyde removal and purification function is a purification device, such as an air conditioner or an air purifier. The air purification unit of the purification device includes a fan, a filter (with at least formaldehyde removal function, such as activated carbon or catalytic decomposition materials), and its drive circuit. This unit is responsible for performing the core air purification task.

[0040] S103, determine the formaldehyde removal capacity of the formaldehyde removal equipment based on the first clean air output ratio.

[0041] In this step, the cumulative formaldehyde removal capacity of the formaldehyde removal equipment over a period of time is determined based on the clean air output ratio determined in S102.

[0042] By combining the above technical solution with the steaming process to evaluate the amount of formaldehyde eliminated, the formaldehyde removal effect of the purification can be quantified, thereby improving the operating efficiency of formaldehyde purification and avoiding the problem of ineffective or inefficient purification when formaldehyde release is not significant.

[0043] According to some optional embodiments of this disclosure, in step S101, a first release coefficient for the formaldehyde-releasing object to release formaldehyde into the target space is determined based on the formaldehyde concentration in the target space. This is achieved by: obtaining the formaldehyde concentration in the target space at different times; and performing exponential fitting based on the formaldehyde concentration at different times to obtain the first release coefficient.

[0044] When executing S101, after activating the formaldehyde removal and steaming function, the formaldehyde level rises, and the formaldehyde concentration in the room (i.e., the target space mentioned above) is reported in real time as (t1, C1), (t2, C2), ... (tn, Cn), where tn is the reporting time and Cn is the formaldehyde concentration. Then, the exponent is called, and exponent fitting is performed to obtain the first release coefficient mentioned above.

[0045] As some optional embodiments of this disclosure, the first release coefficient is determined by the following formula:

[0046] express t The formaldehyde concentration in the room at all times; This represents the initial value of formaldehyde concentration, i.e. t When =0, the formaldehyde concentration in the room; This is the first release coefficient mentioned above.

[0047] In this step, the enclosed space is heated and humidified through an environmental intervention unit, including heating devices (such as smart air conditioners and electric heaters) and humidification devices (such as smart humidifiers) that can be linked to or directly controlled by the system. This unit is used to heat and humidify the enclosed space (i.e., "steaming") when the "active formaldehyde removal mode" is executed, actively accelerating the release of formaldehyde.

[0048] According to some optional embodiments of this disclosure, performing S102 to determine the first clean air output ratio of the formaldehyde removal device based on the first release coefficient includes the following steps: determining the first formaldehyde removal amount corresponding to the actual decrease in formaldehyde concentration in the target space within the target time period, the second formaldehyde removal amount under natural equilibrium, and the formaldehyde release amount due to temperature increase; the formaldehyde release amount is determined based on the first release coefficient; the target time period is determined based on the moment when the formaldehyde removal device starts the second stage formaldehyde removal function and the current moment; the current moment is any moment after the formaldehyde removal device starts the second stage formaldehyde removal function; and determining the first clean air output ratio based on the first formaldehyde removal amount, the second formaldehyde removal amount, and the formaldehyde release amount.

[0049] After entering the formaldehyde removal and purification function stage, through Obtain the natural formaldehyde release at the current temperature (i.e., the formaldehyde release due to temperature increase), and determine the first clean air output ratio based on the following formula:

[0050] in, The first clean air output ratio; V It is the volume of the target space (i.e., the volume of the room). When the formaldehyde removal function of the formaldehyde removal device is turned on, the formaldehyde release coefficient from the inside of the target space to the outside of the target space. This represents the first formaldehyde removal amount; This is the second formaldehyde removal amount; This represents the amount of formaldehyde naturally released at the previous temperature.

[0051] The physical meaning of the above formula is to subtract the part that would naturally be removed (such as ventilation by opening windows and adsorption by walls) from the "actual concentration decrease corresponding to the amount removed", and then add the formaldehyde released due to the increase in temperature. Only in this way can we realize how much formaldehyde can be removed by formaldehyde removal equipment alone if there is no additional release or natural decay.

[0052] According to some optional embodiments of this disclosure, performing S103 to determine the formaldehyde removal capacity of the formaldehyde removal device based on the first clean air output ratio includes the following steps: determining the calibrated second clean air output ratio based on the first clean air output ratio and the calibration coefficient; determining the purification rate of the formaldehyde removal device based on the second clean air output ratio and the formaldehyde concentration in the target space at the current time; the current time is any time after the formaldehyde removal device starts the second stage formaldehyde removal function; determining the formaldehyde removal capacity of the formaldehyde removal device from the time the first stage formaldehyde removal function is started to the current time based on the purification rate of the formaldehyde removal device.

[0053] In embodiments of this disclosure, after determining a first clean air output ratio, the first clean air output ratio is calibrated using a calibration coefficient to obtain a calibrated second clean air output ratio. The method for determining this calibration coefficient is described below.

[0054] According to some optional embodiments of this disclosure, the formaldehyde removal capacity of the formaldehyde removal device is calculated using an integral method. First, the purification rate of the formaldehyde removal device is determined: Purification rate = ; Then, by integrating the purification rate, the formaldehyde removal capacity of the formaldehyde removal equipment is obtained: Formaldehyde removal capacity: .

[0055] According to some optional embodiments of this disclosure, the calibration coefficient is determined by the following method: determining a second release coefficient for formaldehyde release from the inside of the target space to the outside of the target space when the formaldehyde removal device is not activated; determining a third release coefficient for formaldehyde release from the inside of the target space to the outside of the target space when the formaldehyde removal device is activated; determining a third clean air output ratio based on the second release coefficient and the third release coefficient; and determining the calibration coefficient based on the third clean air output ratio.

[0056] According to some optional embodiments of this disclosure, due to the influence of the installation environment of the formaldehyde removal equipment, the initial formaldehyde concentration in the room, and the natural release of formaldehyde, it is necessary to calibrate the formaldehyde release in the room in conjunction with the current formaldehyde removal equipment. The formaldehyde removal equipment is installed at the usage location and needs to be kept in a static state for more than 24 hours with all external connections closed (in a designated operating space) to obtain the natural variation coefficient of formaldehyde concentration change. The system identifies when formaldehyde concentration is the same and performs two purification runs at different fan speeds, and uploads the formaldehyde concentration to the computing module (cloud or local edge gateway) in real time.

[0057] The calibration coefficient is calculated as follows: 1) Calculate the second release coefficient: ,in, express t The formaldehyde concentration in the room at all times; This represents the initial value of formaldehyde concentration, i.e. t When =0, the formaldehyde concentration in the room; This is the second release coefficient.

[0058] 2) Calculate the third release coefficient: ,in, This is the third release coefficient.

[0059] 3) Calculate the actual initial CADR value in the user environment: ,in, Estimate the volume of the room entered by the user through the app; This is the third clean air output ratio.

[0060] As some optional embodiments of this disclosure, determining the calibration coefficient based on the third clean air output ratio includes the following steps: finding the fourth clean air output ratio corresponding to the current air level based on the mapping relationship between the air level and the clean air output ratio; the current air level is the air level that the formaldehyde removal device is turned on when determining the third release coefficient; and determining the ratio of the third clean air output ratio to the fourth clean air output ratio as the calibration coefficient.

[0061] 4) Calculate the environmental calibration factor α: From the pre-set laboratory benchmark database, find the value of the environmental calibration factor α at the specified airflow rate. The corresponding The formula for calculating the calibration coefficient is: ,in, This is the fourth clean air output ratio.

[0062] This calibration factor α quantifies the difference between the user's home environment and a standard laboratory. Subsequently, for any airflow... Its initial CADR value in the user's home can be estimated as follows: .

[0063] According to some optional embodiments of this disclosure, the mapping relationship between the fan speed limit and the clean air output ratio is determined by the following method: constructing curves showing the change in formaldehyde concentration in the laboratory when the formaldehyde removal device is turned on at each fan speed limit for formaldehyde removal; and establishing a mapping relationship between each fan speed limit and its corresponding clean air output ratio based on the formaldehyde concentration change curve corresponding to each fan speed limit.

[0064] In this embodiment, the formaldehyde removal capacity of the formaldehyde removal equipment is calibrated. The CADR value advertised by the manufacturer is usually the data at the highest fan speed. In actual use, users may use medium / low speeds to reduce noise. However, the CADR corresponding to different fan speeds is not a linear ratio (affected by fan characteristics, filter resistance, and airflow organization). The formaldehyde removal effect directly depends on the actual CADR at that fan speed. Therefore, it is necessary to calibrate the actual CADR corresponding to each fan speed through experiments. The actual CADR value corresponding to each fan speed is derived, and a mapping relationship between "fan speed and CADR value" is established.

[0065] Construct a formaldehyde removal curve for a constant air volume and a constant CADR value within the same product category. The formula corresponding to the curve is as follows: ,in, Let be the formaldehyde concentration at time t under the i-th real air setting; This is the initial concentration scaling factor (usually approximately equal to the initial concentration C0); The purification efficiency coefficient reflects the contribution efficiency of CADR to the actual removal rate (ideally ki2=1, but often less than 1 due to filter efficiency, uneven mixing, etc.). CADR stands for Clean Air Delivery Rate. V represents the room volume; λ is the natural decay rate (unit: h). - ¹), including: concentration decreases not caused by the purifier, such as natural sedimentation, surface adsorption, chemical decomposition, and ventilation leakage.

[0066] The above-mentioned solution proposed in this disclosure obtains the formaldehyde release assessment method suitable for the room through laboratory calibration and actual environment adaptation identification, and evaluates the formaldehyde removal amount in combination with the steaming process, thereby quantifying the formaldehyde removal effect, improving the operational efficiency of formaldehyde purification, and avoiding ineffective or inefficient purification when formaldehyde release is not high.

[0067] Figure 2 This is a flowchart illustrating a method for demonstrating formaldehyde removal capacity according to an embodiment of this disclosure, as shown below. Figure 2 As shown, the method includes the following steps: S201 receives user touch control input on the formaldehyde removal equipment's operating interface; the operating interface includes the target control.

[0068] According to some optional embodiments of this disclosure, the above-described user interface is a control interface for an air conditioner.

[0069] Figure 3 This is a schematic diagram of the operation interface of a formaldehyde removal device according to an embodiment of the present disclosure, as shown below. Figure 3As shown, the operation interface includes a target control. By clicking on the target control, the user can trigger the display of the formaldehyde removal amount on the operation interface.

[0070] S202, in response to operation, the formaldehyde removal capacity of the formaldehyde removal device is displayed on the operation interface; the formaldehyde removal capacity is determined according to the above method.

[0071] Figure 4 This is a schematic diagram of the operation interface of a formaldehyde removal device according to an embodiment of the present disclosure, as shown below. Figure 4 As shown, after receiving the user's touch operation on the target control, the processor of the formaldehyde removal device displays the formaldehyde removal capacity of the device on the operation interface.

[0072] The above solution can intuitively demonstrate the formaldehyde removal capacity of the formaldehyde removal equipment to users, thus improving the user experience.

[0073] This disclosure provides an embodiment of a device for determining the amount of formaldehyde removed, such as... Figure 5 As shown, the formaldehyde removal amount determining device 50 may include: a first determining module 501, a second determining module 502, and a third determining module 503, wherein, The first determining module 501 is used to determine the first release coefficient of formaldehyde released by the formaldehyde release object into the target space based on the formaldehyde concentration in the target space during the first stage of formaldehyde removal function of the formaldehyde removal equipment; the first release coefficient represents the proportion of change of formaldehyde concentration in the target space per unit time.

[0074] According to some optional embodiments of this disclosure, the first stage of formaldehyde removal function refers to the stage when the formaldehyde removal equipment starts the steaming function. The steaming function refers to starting the heating equipment or using a humidifier to raise the indoor temperature and humidity (e.g., 35–45°C, relative humidity above 60%), closing the doors and windows, maintaining the high temperature and high humidity state for several hours, and causing the pollution source to continuously release formaldehyde.

[0075] According to some optional embodiments of this disclosure, the first release coefficient is the release coefficient of formaldehyde released from a formaldehyde source (e.g., furniture such as wardrobes) into the room. This release coefficient is used to represent the percentage change in formaldehyde concentration in the room per unit time. According to some optional embodiments of this disclosure, the formaldehyde removal device that performs the formaldehyde evaporation function is a heating device, such as an air conditioner or a smart heater.

[0076] The second determining module 502 is used to determine the first clean air output ratio of the formaldehyde removal equipment based on the first release coefficient after the formaldehyde removal equipment starts the second stage formaldehyde removal function.

[0077] According to some optional embodiments of this disclosure, the second stage of formaldehyde removal function refers to the stage when the formaldehyde removal equipment starts its formaldehyde removal and purification function. The purification function refers to the removal capability of the formaldehyde removal equipment (such as air purifiers, fresh air systems, air conditioners, etc.) specifically designed for harmful gases such as formaldehyde.

[0078] According to some optional embodiments of this disclosure, after entering the formaldehyde removal and purification function stage, the natural release amount of formaldehyde in the room at the current temperature is determined by the first release coefficient, thereby determining the Clean Air Delivery Rate (CADR) of the formaldehyde removal equipment. CADR, also known as Clean Air Volume, is an important indicator for measuring the purification efficiency of formaldehyde removal equipment. CADR represents how many cubic feet (or cubic meters) of clean air the formaldehyde removal equipment can deliver per unit time. The higher the value, the stronger and faster the purification capacity of the formaldehyde removal equipment.

[0079] According to some optional embodiments of this disclosure, the formaldehyde removal device that performs the formaldehyde removal and purification function is a purification device, such as an air conditioner or an air purifier.

[0080] The third determining module 503 is used to determine the amount of formaldehyde removed by the formaldehyde removal equipment based on the first clean air output ratio.

[0081] According to some optional embodiments of this disclosure, the first determining module 501 includes: an acquisition unit for acquiring formaldehyde concentration at different times within the target space; and a fitting unit for performing exponential fitting based on the formaldehyde concentration at different times to obtain a first release coefficient.

[0082] After activating the formaldehyde removal and steaming function, the formaldehyde level rises, and the formaldehyde concentration in the room (i.e., the target space mentioned above) is reported in real time as (t1, C1), (t2, C2), ... (tn, Cn), where tn is the reporting time and Cn is the formaldehyde concentration. Then, an index is called, and an index fitting is performed to obtain the first release coefficient mentioned above.

[0083] As some optional embodiments of this disclosure, the first release coefficient is determined by the following formula:

[0084] express t The formaldehyde concentration in the room at all times; This represents the initial value of formaldehyde concentration, i.e. t When =0, the formaldehyde concentration in the room; This is the first release coefficient mentioned above.

[0085] According to some optional embodiments of this disclosure, the second determining module 502 includes: a first determining unit, configured to determine a first formaldehyde removal amount corresponding to the actual decrease in formaldehyde concentration in the target space within a target time period, a second formaldehyde removal amount under natural equilibrium, and a formaldehyde release amount due to temperature increase; the formaldehyde release amount is determined based on a first release coefficient; the target time period is determined based on the moment when the formaldehyde removal device starts the second stage formaldehyde removal function and the current moment; the current moment is any moment after the formaldehyde removal device starts the second stage formaldehyde removal function; and a second determining unit, configured to determine a first clean air output ratio based on the first formaldehyde removal amount, the second formaldehyde removal amount, and the formaldehyde release amount.

[0086] After entering the formaldehyde removal and purification function stage, through Obtain the natural formaldehyde release at the current temperature (i.e., the formaldehyde release due to temperature increase), and determine the first clean air output ratio based on the following formula:

[0087] in, The first clean air output ratio; V It is the volume of the target space (i.e., the volume of the room). When the formaldehyde removal function of the formaldehyde removal device is turned on, the formaldehyde release coefficient from the inside of the target space to the outside of the target space. This represents the first formaldehyde removal amount; This is the second formaldehyde removal amount; This represents the amount of formaldehyde naturally released at the previous temperature.

[0088] The physical meaning of the above formula is to subtract the part that would naturally be removed (such as ventilation by opening windows and adsorption by walls) from the "actual concentration decrease corresponding to the amount removed", and then add the formaldehyde released due to the increase in temperature. Only in this way can we realize how much formaldehyde can be removed by formaldehyde removal equipment alone if there is no additional release or natural decay.

[0089] According to some optional embodiments of this disclosure, the third determining module 503 includes: a third determining unit, configured to determine a calibrated second clean air output ratio based on a first clean air output ratio and a calibration coefficient; a fourth determining unit, configured to determine the purification rate of the formaldehyde removal device based on the second clean air output ratio and the formaldehyde concentration in the target space at the current moment; the current moment is any moment after the formaldehyde removal device starts the second stage formaldehyde removal function; and a fifth determining unit, configured to determine the amount of formaldehyde removed by the formaldehyde removal device from the moment the first stage formaldehyde removal function was started to the current moment based on the purification rate of the formaldehyde removal device.

[0090] In embodiments of this disclosure, after determining a first clean air output ratio, the first clean air output ratio is calibrated using a calibration coefficient to obtain a calibrated second clean air output ratio. The method for determining this calibration coefficient is described below.

[0091] According to some optional embodiments of this disclosure, the formaldehyde removal capacity of the formaldehyde removal device is calculated using an integral method. First, the purification rate of the formaldehyde removal device is determined: Purification rate = ; Then, by integrating the purification rate, the formaldehyde removal capacity of the formaldehyde removal equipment is obtained: Formaldehyde removal capacity: .

[0092] According to some optional embodiments of this disclosure, the above-mentioned device further includes a fourth determining module, which includes: a sixth determining unit, configured to determine a second release coefficient for formaldehyde released from the inside of the target space to the outside of the target space when the formaldehyde removal device is not activated; a seventh determining unit, configured to determine a third release coefficient for formaldehyde released from the inside of the target space to the outside of the target space when the formaldehyde removal device is activated; an eighth determining unit, configured to determine a third clean air output ratio based on the second and third release coefficients; and a ninth determining unit, configured to determine a calibration coefficient based on the third clean air output ratio.

[0093] According to some optional embodiments of this disclosure, due to the influence of the installation environment of the formaldehyde removal equipment, the initial formaldehyde concentration in the room, and the natural release of formaldehyde, it is necessary to calibrate the formaldehyde release in the room in conjunction with the current formaldehyde removal equipment. The formaldehyde removal equipment is installed at the usage location and needs to be kept in a static state for more than 24 hours with all external connections closed (in a designated operating space) to obtain the natural variation coefficient of formaldehyde concentration change. The system identifies when formaldehyde concentration is the same and performs two purification runs at different fan speeds, and uploads the formaldehyde concentration to the computing module (cloud or local edge gateway) in real time.

[0094] The calibration coefficient is calculated as follows: 1) Calculate the second release coefficient: ,in, express t The formaldehyde concentration in the room at all times; This represents the initial value of formaldehyde concentration, i.e. t When =0, the formaldehyde concentration in the room; This is the second release coefficient.

[0095] 2) Calculate the third release coefficient: ,in, This is the third release coefficient.

[0096] 3) Calculate the actual initial CADR value in the user environment: ,in, Estimate the volume of the room entered by the user through the app; This is the third clean air output ratio.

[0097] According to some optional embodiments of this disclosure, the ninth determining unit includes: a searching subunit, used to search for the fourth clean air output ratio corresponding to the current air setting based on the mapping relationship between the air setting and the clean air output ratio; the current air setting is the air setting turned on by the formaldehyde removal device when the third release coefficient is determined; and a determining subunit, used to determine the ratio of the third clean air output ratio to the fourth clean air output ratio as a calibration coefficient.

[0098] 4) Calculate the environmental calibration factor α: From the pre-set laboratory benchmark database, find the value of the environmental calibration factor α at the specified airflow rate. The corresponding The formula for calculating the calibration coefficient is: ,in, This is the fourth clean air output ratio.

[0099] This calibration factor α quantifies the difference between the user's home environment and a standard laboratory. Subsequently, for any airflow... Its initial CADR value in the user's home can be estimated as follows: .

[0100] According to some optional embodiments of this disclosure, the above-mentioned device further includes a fifth determining module, which includes: a first processing unit, configured to construct a curve showing the change in formaldehyde concentration in the laboratory when the formaldehyde removal device is turned on at each fan speed for formaldehyde removal; and a second processing unit, configured to establish a mapping relationship between each fan speed and its corresponding clean air output ratio based on the curve showing the change in formaldehyde concentration at each fan speed.

[0101] In this embodiment, the formaldehyde removal capacity of the formaldehyde removal equipment is calibrated. The CADR value advertised by the manufacturer is usually the data at the highest fan speed. In actual use, users may use medium / low speeds to reduce noise. However, the CADR corresponding to different fan speeds is not a linear ratio (affected by fan characteristics, filter resistance, and airflow organization). The formaldehyde removal effect directly depends on the actual CADR at that fan speed. Therefore, it is necessary to calibrate the actual CADR corresponding to each fan speed through experiments. The actual CADR value corresponding to each fan speed is derived, and a mapping relationship between "fan speed and CADR value" is established.

[0102] Construct a formaldehyde removal curve for a constant air volume and a constant CADR value within the same product category. The formula corresponding to the curve is as follows: ,in, Let be the formaldehyde concentration at time t under the i-th real air setting; This is the initial concentration scaling factor (usually approximately equal to the initial concentration C0); The purification efficiency coefficient reflects the contribution efficiency of CADR to the actual removal rate (ideally ki2=1, but often less than 1 due to filter efficiency, uneven mixing, etc.). CADR stands for Clean Air Delivery Rate. V represents the room volume; λ is the natural decay rate (unit: h). - ¹), including: concentration decreases not caused by the purifier, such as natural sedimentation, surface adsorption, chemical decomposition, and ventilation leakage.

[0103] The formaldehyde removal amount determination device of this disclosure embodiment can execute the formaldehyde removal amount determination method provided in this disclosure embodiment, and its implementation principle is similar, and it has the corresponding technical effect. The actions performed by each module in the device of each embodiment of this disclosure correspond to the steps in the method of each embodiment of this disclosure. For a detailed functional description of each module of the device, please refer to the description in the corresponding method shown above, and it will not be repeated here.

[0104] This disclosure provides a device for displaying the amount of formaldehyde removed, such as... Figure 6 As shown, the formaldehyde removal capacity display device 60 may include: a receiving module 601 and a response module 602, wherein, The receiving module 601 is used to receive user touch operation of target control on the operation interface of the formaldehyde removal equipment; the operation interface includes target control.

[0105] According to some optional embodiments of this disclosure, the above-described user interface is a control interface for an air conditioner.

[0106] like Figure 3As shown, the operation interface includes a target control. By clicking on the target control, the user can trigger the display of the formaldehyde removal amount on the operation interface.

[0107] The response module 602 is used to respond to the operation and display the formaldehyde removal capacity of the formaldehyde removal device on the operation interface; the formaldehyde removal capacity is determined according to the above method.

[0108] like Figure 4 As shown, after receiving the user's touch operation on the target control, the processor of the formaldehyde removal device displays the formaldehyde removal capacity of the device on the operation interface.

[0109] The formaldehyde removal quantity display device of this disclosure embodiment can execute the formaldehyde removal quantity display method provided in this disclosure embodiment, and its implementation principle is similar, and it has the corresponding technical effect. The actions performed by each module in the device of each embodiment of this disclosure correspond to the steps in the method of each embodiment of this disclosure. For a detailed functional description of each module of the device, please refer to the description in the corresponding method shown above, and it will not be repeated here.

[0110] This disclosure provides an electronic device including a memory, a processor, and a computer program stored in the memory. The processor executes the computer program to implement the steps of the method provided in any optional embodiment of this disclosure. Compared with the prior art, it can achieve the following: by combining the formaldehyde removal process with the evaluation of the formaldehyde removal amount, the formaldehyde removal effect of the purification can be quantified, thereby improving the operating efficiency of formaldehyde purification and avoiding the problem of ineffective or inefficient purification when the formaldehyde release is not high. In one alternative embodiment, an electronic device is provided, such as Figure 7 As shown, Figure 7 The illustrated electronic device 7000 includes a processor 7001 and a memory 7003. The processor 7001 and the memory 7003 are connected, for example, via a bus 7002. Optionally, the electronic device 7000 may further include a transceiver 7004, which can be used for data interaction between the electronic device and other electronic devices, such as sending and / or receiving data. It should be noted that in practical applications, the transceiver 7004 is not limited to one type, and the structure of the electronic device 7000 does not constitute a limitation on the embodiments of this disclosure.

[0111] Processor 7001 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with this disclosure. Processor 7001 may also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0112] Bus 7002 may include a pathway for transmitting information between the aforementioned components. Bus 7002 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. Bus 7002 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 7 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0113] The memory 7003 may be ROM (Read Only Memory) or other types of static storage devices capable of storing static information and instructions, RAM (Random Access Memory) or other types of dynamic storage devices capable of storing information and instructions, or EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media, other magnetic storage devices, or any other medium capable of carrying or storing computer programs and capable of being read by a computer, without limitation herein.

[0114] The memory 7003 is used to store computer programs that execute embodiments of the present disclosure, and is controlled by the processor 7001 to execute them. The processor 7001 is used to execute the computer programs stored in the memory 7003 to implement the steps shown in the foregoing method embodiments.

[0115] Among them, electronic devices include, but are not limited to, mobile terminals.

[0116] This disclosure provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can implement the steps and corresponding content of the aforementioned method embodiments.

[0117] This disclosure also provides a computer application, including a computer program applied to a terminal device connected to home appliances, the application being configured to implement the steps and corresponding content of the aforementioned method embodiments.

[0118] It should be understood that although arrows indicate various operation steps in the flowcharts of the embodiments of this disclosure, the order in which these steps are implemented is not limited to the order indicated by the arrows. Unless explicitly stated herein, in some implementation scenarios of the embodiments of this disclosure, the implementation steps in each flowchart can be executed in other orders as required. Furthermore, some or all of the steps in each flowchart may include multiple sub-steps or multiple stages based on the actual implementation scenario. Some or all of these sub-steps or stages can be executed at the same time, and each sub-step or stage can also be executed at different times. In scenarios where execution times differ, the execution order of these sub-steps or stages can be flexibly configured as required, and the embodiments of this disclosure do not limit this.

[0119] The above description is only an optional implementation method for some implementation scenarios of this disclosure. It should be noted that for those skilled in the art, other similar implementation methods based on the technical concept of this disclosure without departing from the technical concept of this disclosure also fall within the protection scope of the embodiments of this disclosure.

Claims

1. A method for determining the amount of formaldehyde removed, characterized in that, include: During the first stage of formaldehyde removal function of the formaldehyde removal equipment, a first release coefficient for formaldehyde release from the formaldehyde-releasing object into the target space is determined based on the formaldehyde concentration in the target space. The first release coefficient represents the percentage change in formaldehyde concentration within the target space per unit time. After the formaldehyde removal device activates the second stage of formaldehyde removal function, the first clean air output ratio of the formaldehyde removal device is determined based on the first release coefficient. The amount of formaldehyde removed by the formaldehyde removal device is determined based on the first clean air output ratio.

2. The method for determining the amount of formaldehyde removed according to claim 1, characterized in that, The step of determining the first release coefficient for formaldehyde release from the formaldehyde-releasing object into the target space based on the formaldehyde concentration in the target space includes: Obtain the formaldehyde concentration at different times within the target space; The first release coefficient is obtained by performing an exponential fit based on the formaldehyde concentration at different times.

3. The method for determining the amount of formaldehyde removed according to claim 1, characterized in that, Determining the first clean air output ratio of the formaldehyde removal device based on the first release coefficient includes: The formaldehyde removal amount is determined based on the actual decrease in formaldehyde concentration in the target space within the target time period, the formaldehyde removal amount under natural equilibrium, and the formaldehyde release amount due to temperature increase; the formaldehyde release amount is determined based on the first release coefficient; the target time period is determined based on the moment when the formaldehyde removal device starts the second stage formaldehyde removal function and the current moment; the current moment is any moment after the formaldehyde removal device starts the second stage formaldehyde removal function; The first clean air output ratio is determined based on the first formaldehyde removal amount, the second formaldehyde removal amount, and the formaldehyde release amount.

4. The method for determining the amount of formaldehyde removed according to any one of claims 1 to 3, characterized in that, Determining the formaldehyde removal capacity of the formaldehyde removal device based on the first clean air output ratio includes: The calibrated second clean air output ratio is determined based on the first clean air output ratio and the calibration coefficient. The purification rate of the formaldehyde removal device is determined based on the second clean air output ratio and the formaldehyde concentration in the target space at the current moment; the current moment is any moment after the formaldehyde removal device starts the second stage formaldehyde removal function; The amount of formaldehyde removed by the formaldehyde removal device is determined based on the purification rate of the formaldehyde removal device from the moment the first stage of formaldehyde removal function is activated until the current moment.

5. The method for determining the amount of formaldehyde removed according to claim 4, characterized in that, The calibration coefficients are determined by the following method: A second release coefficient for formaldehyde release from the inside of the target space to the outside of the target space is determined when the formaldehyde removal device is not activated. A third release coefficient is determined for formaldehyde released from the interior of the target space to the exterior of the target space when the formaldehyde removal device is activated. The third clean air output ratio is determined based on the second release coefficient and the third release coefficient; The calibration coefficient is determined based on the third clean air output ratio.

6. The method for determining the amount of formaldehyde removed according to claim 5, characterized in that, Determining the calibration coefficient based on the third clean air output ratio includes: The fourth clean air output ratio corresponding to the current air setting is found based on the mapping relationship between the air setting and the clean air output ratio; the current air setting is the air setting that the formaldehyde removal device turns on when the third release coefficient is determined. The ratio of the third clean air output ratio to the fourth clean air output ratio is determined as the calibration coefficient.

7. The method for determining the amount of formaldehyde removed according to claim 6, characterized in that, The mapping relationship between the fan baffle and the clean air output ratio is determined by the following method: Construct curves showing the change in formaldehyde concentration in the laboratory when the formaldehyde removal equipment is turned on at each fan speed for formaldehyde removal. Based on the formaldehyde concentration change curve corresponding to each windshield, a mapping relationship is established between each windshield and its corresponding clean air output ratio.

8. A method for displaying formaldehyde removal capacity, characterized in that, include: The user interface of the formaldehyde removal equipment receives touch controls from the target device. The user interface includes the target control; In response to the operation, the formaldehyde removal capacity of the formaldehyde removal device is displayed on the operation interface; the formaldehyde removal capacity is determined by the method according to any one of claims 1 to 7.

9. A device for determining the amount of formaldehyde removed, characterized in that, include: The first determining module is used to determine a first release coefficient of formaldehyde release from the formaldehyde release object into the target space based on the formaldehyde concentration in the target space during the first stage of formaldehyde removal function of the formaldehyde removal device; the first release coefficient represents the proportion of change in formaldehyde concentration in the target space per unit time. The second determining module is used to determine the first clean air output ratio of the formaldehyde removal device based on the first release coefficient after the formaldehyde removal device activates the second stage formaldehyde removal function. The third determining module is used to determine the amount of formaldehyde removed by the formaldehyde removal device based on the first clean air output ratio.

10. The apparatus for determining the amount of formaldehyde removed according to claim 9, characterized in that, The first determining module includes: The acquisition unit is used to acquire the formaldehyde concentration in the target space at different times; The fitting unit is used to perform exponential fitting based on the formaldehyde concentration at different times to obtain the first release coefficient.

11. The apparatus for determining the amount of formaldehyde removed according to claim 9, characterized in that, The second determining module includes: The first determining unit is used to determine the first formaldehyde removal amount corresponding to the actual decrease in formaldehyde concentration in the target space within the target time period, the second formaldehyde removal amount under natural equilibrium, and the formaldehyde release amount caused by temperature increase; the formaldehyde release amount is determined based on the first release coefficient; the target time period is determined based on the moment when the formaldehyde removal device starts the second stage formaldehyde removal function and the current moment; the current moment is any moment after the formaldehyde removal device starts the second stage formaldehyde removal function; The second determining unit is used to determine the first clean air output ratio based on the first formaldehyde removal amount, the second formaldehyde removal amount, and the formaldehyde release amount.

12. The apparatus for determining the amount of formaldehyde removed according to any one of claims 9 to 11, characterized in that, The third determining module includes: The third determining unit is used to determine the calibrated second clean air output ratio based on the first clean air output ratio and the calibration coefficient. The fourth determining unit is used to determine the purification rate of the formaldehyde removal device based on the second clean air output ratio and the formaldehyde concentration in the target space at the current moment; the current moment is any moment after the formaldehyde removal device starts the second stage formaldehyde removal function; The fifth determining unit is used to determine the amount of formaldehyde removed by the formaldehyde removal device from the moment the first stage formaldehyde removal function is activated until the current moment, based on the purification rate of the formaldehyde removal device.

13. The apparatus for determining the amount of formaldehyde removed according to claim 12, characterized in that, The device further includes a fourth determining module, the fourth determining module comprising: The sixth determining unit is used to determine a second release coefficient for formaldehyde released from the interior of the target space to the exterior of the target space when the formaldehyde removal device is not activated. The seventh determining unit is used to determine the third release coefficient of formaldehyde released from the inside of the target space to the outside of the target space when the formaldehyde removal device is activated. The eighth determining unit is used to determine the third clean air output ratio based on the second release coefficient and the third release coefficient; The ninth determining unit is used to determine the calibration coefficient based on the third clean air output ratio.

14. The apparatus for determining the amount of formaldehyde removed according to claim 13, characterized in that, The ninth determining unit includes: The lookup subunit is used to look up the fourth clean air output ratio corresponding to the current air setting based on the mapping relationship between the air setting and the clean air output ratio; the current air setting is the air setting that the formaldehyde removal device turns on when the third release coefficient is determined. A subunit is defined to determine the ratio of the third clean air output ratio to the fourth clean air output ratio as the calibration coefficient.

15. The apparatus for determining the amount of formaldehyde removed according to claim 14, characterized in that, The device further includes a fifth determining module, the fifth determining module comprising: The first processing unit is used to construct the formaldehyde concentration change curve in the laboratory when the formaldehyde removal equipment is turned on at each fan speed for formaldehyde removal. The second processing unit is used to establish a mapping relationship between each air deflector and its corresponding clean air output ratio based on the formaldehyde concentration change curve corresponding to each air deflector.

16. A device for displaying the amount of formaldehyde removed, characterized in that, include: The receiving module is used to receive user touch controls on the target control on the operating interface of the formaldehyde removal equipment; The user interface includes the target control; A response module is configured to, in response to the operation, display the formaldehyde removal capacity of the formaldehyde removal device on the operation interface; the formaldehyde removal capacity is determined by the method according to any one of claims 1 to 7.

17. An electronic device comprising: A memory, a processor, and a computer program stored on the memory, characterized in that the processor executes the computer program to implement the method of any one of claims 1 to 8.

18. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the method of any one of claims 1 to 8.

19. An application program, applied to a terminal device, characterized in that, The terminal device is connected to a home appliance, and the application is configured to perform the method according to any one of claims 1 to 8.

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