WO2018019000A1 - Method and system for detecting concentration of indoor air dust particles and household appliance - Google Patents

Abstract

Disclosed are a method for detecting the concentration of indoor air dust particles, a system (100) for detecting the concentration of indoor air dust particles, and a household appliance (1000) having the system. The detection method comprises: acquiring the degree of dirt blockage of a dust filter screen of the household appliance (1000), and obtaining the rate of change of the dirt blockage in accordance with the degree of dirt blockage of the dust filter screen (S1); and calculating and displaying the corresponding concentration of indoor air dust particles in accordance with the rate of change of the dirt blockage (S2). In the method for detecting the concentration of indoor air dust particles, the concentration of indoor air dust particles is provided for a user, so that the user can be informed in time. The method is easy to implement, and can reduce the cost of air detection.

Description

Indoor air dust particle concentration detecting method, system and household appliance Technical field

The invention relates to the technical field of electrical appliance manufacturing, in particular to a method for detecting indoor air dust particle concentration, and an indoor air dust particle concentration detecting system and a household appliance.

Background technique

As environmental problems worsen, air quality and health issues are getting more and more attention. People spend an average of 90% of their time indoors, so the quality of indoor air directly affects people's health.

Indoor air quality is highly dependent on the concentration of dust particles and bacteria contained. Dust particles are small in diameter and therefore suspended in the air for a long time. Among them, the larger diameter will be observed by the human eye under the sunlight, which makes people feel uncomfortable; the smaller diameter will be inhaled into the respiratory tract, which seriously affects human health. The concentration of bacteria in the air, such as planktonic bacteria and sedimentation bacteria, is positively correlated with the concentration of dust particles. Therefore, real-time detection of indoor air dust particle concentration, and then remind residents to ventilate or directly drive ventilation equipment for ventilation, is essential for maintaining good air quality and a healthy indoor environment.

At present, the detection of indoor air dust particle concentration uses dedicated sensors, which are mostly made by the principle of scattering of light by dust particles. The price of such a dedicated sensor is high, so household equipment with air detection and reminder functions, such as air conditioners, will have an increased cost when equipped with such a sensor. For ordinary users, it is not easy to purchase and purify indoor air by purchasing a special air purifier. been accepted.

Summary of the invention

The present invention aims to solve at least one of the technical problems in the related art to some extent.

In order to solve the above problems, an embodiment of the present invention provides a method for detecting indoor airborne dust concentration, comprising: obtaining a dirty gambling degree of a dust filter of a household appliance, and obtaining a dirty gambling change rate according to the dirty gambling degree of the dust filter. And calculating and displaying the corresponding indoor air dust particle concentration according to the dirty bet change rate.

The indoor air dust particle concentration detecting method according to the embodiment of the present invention obtains the dirty gambling change rate according to the dirty gambling degree of the dust filter net, and calculates the corresponding indoor air dust according to the dirty gambling change rate. The particle concentration and the concentration of indoor air dust particles are provided to the user, and the user can understand the situation in time, and the method is simple and easy to implement, and the cost of air detection can be reduced.

In at least one embodiment, the method further includes prompting the user to open the window to ventilate and/or automatically turn on the ventilating device when the indoor airborne dust particle concentration is greater than a predetermined concentration threshold.

In at least one embodiment, acquiring a dirty bet level of the dust filter of the home appliance includes: detecting a dirty bet parameter of the home appliance; and querying a correspondence table between the dirty bet parameter and the dirty bet degree according to the dirty bet parameter or A normalization process is performed to determine the degree of dirty gambling of the corresponding filter screen.

In at least one embodiment, obtaining a dirty gambling degree of the dust filter in the room and obtaining a dirty gambling change rate according to the dirty gambling degree of the dust filter comprises: acquiring a first dirty gambling degree of the dust filter and at a preset time Obtaining a second dirty gambling degree of the dust filter net after the interval; according to the first dirty gambling degree and the The second dirty bet level calculates a dirty bet degree change value; and, a ratio of the dirty bet degree change value to the preset time interval is calculated to obtain the dirty block change rate.

In at least one embodiment, the preset time interval ranges from 10 to 40 minutes.

In at least one embodiment, obtaining a dirty gambling degree of the dust filter in the room and obtaining a dirty gambling change rate according to the dirty gambling degree of the dust filter comprises: acquiring a third dirty blocking degree of the dust filter and following a preset frequency Continuously collecting the degree of dirty plugging of the dust filter; recording the time elapsed when the difference between the collected dirty plugging degree and the third dirty plugging degree reaches a preset difference threshold; and calculating the preset difference A ratio of the value threshold to the elapsed time to obtain the dirty plug change rate.

In at least one embodiment, acquiring the corresponding indoor air dust particle concentration according to the dirty bet change rate comprises: calculating a product of the dirty bet change rate and a preset proportional coefficient to obtain a corresponding indoor air dust particle concentration.

In at least one embodiment, the method further includes: determining a value interval to which the dirty gambling degree of the dust filter belongs; determining the preset proportional coefficient according to the value interval to which the dirty gambling degree of the dust filter belongs.

In at least one embodiment, when the first dirty blocking degree and the second dirty blocking degree respectively belong to different value intervals, the preset proportional coefficient corresponding to the value range of the first dirty blocking degree is selected; or, The third dirty blocking degree and the preset difference threshold are summed to obtain a fourth dirty blocking degree, and when the third dirty blocking degree and the fourth dirty blocking degree belong to different value intervals, the third dirty blocking is selected The preset scale factor corresponding to the value range.

In order to solve the above problems, an indoor air dust particle concentration detecting system according to another embodiment of the present invention includes: a dirty bet change rate obtaining module, configured to acquire a dirty bet degree of a dust filter of a household appliance, and according to the dust filter net The dirty gambling degree obtains a dirty gambling change rate; the dust particle concentration generating module is configured to calculate a corresponding indoor air dust particle concentration according to the dirty gambling change rate; and a display module is configured to display the indoor air dust particle concentration.

In the indoor air dust particle concentration detecting system of the embodiment of the invention, the dirty gambling change rate obtaining module obtains the dirty gambling change rate according to the dirty gambling degree of the dust filter net, and the dust particle concentration generating module calculates the corresponding indoor air dust particle according to the dirty gambling change rate. Concentration, and the indoor air dust particle concentration is provided to the user through the display module, the user can know the situation in time, the structure is simple, and the cost of air detection can be reduced.

In at least one embodiment, the system further includes: an alarm module, wherein the alarm module is configured to prompt the user to open the window when the indoor air dust particle concentration is greater than a preset concentration threshold; and/or, An automatic control module is configured to automatically turn on the ventilating device when the indoor air dust particle concentration is greater than a preset concentration threshold.

In at least one embodiment, the dirty block change rate acquisition module includes: a parameter detecting unit, configured to detect a dirty bet parameter of the home appliance; and a dirty bet degree obtaining unit, configured to query a dirty bet according to the dirty bet parameter The correspondence table of parameters and dirty gambling degrees is either normalized to determine the corresponding dirty gambling degree of the dust filter.

In at least one embodiment, the dirty blocking change rate obtaining module includes: a first acquiring unit, Obtaining a first dirty gambling degree of the dust filter net and obtaining a second dirty gambling degree of the dust filter net after a preset time; a first calculating unit, configured to use the first dirty gambling degree and the first The dirty gambling degree calculates a dirty gambling degree change value, and calculates a ratio of the dirty gambling degree change value to the preset time interval to obtain the dirty clogging change rate.

In at least one embodiment, the preset time interval ranges from 10 to 40 minutes.

In at least one embodiment, the dirty block change rate acquisition module includes: a second acquisition unit, configured to acquire a third dirty plugging degree of the dust filter net and continuously collect a dirty plugging degree of the dust filter net according to a preset frequency; a calculating unit, configured to record a time elapsed when a difference between the collected dirty blocking degree and the third dirty blocking degree reaches a preset difference threshold, and calculate the preset difference threshold and the The ratio of the elapsed time to obtain the rate of change of the dirty plug.

In at least one embodiment, the dust particle concentration generation module calculates a product of the dirty bet change rate and a preset scale factor to obtain a corresponding indoor air dust particle concentration.

In at least one embodiment, the dust particle concentration generating module includes: a storage unit, configured to store a correspondence table between a dirty plugging degree of the dust filter net and the preset proportional coefficient of the pre-established different value interval; the query unit And determining a value interval to which the dirty gambling degree of the dust filter belongs, and querying the correspondence relationship table according to the value interval to determine the preset proportional coefficient; and generating a unit, according to the dirty gambling The rate of change and the predetermined scale factor generate corresponding indoor airborne dust particle concentrations.

In at least one embodiment, the query unit, when the first dirty level and the second dirty level are divided When the value ranges from different values, the preset proportional coefficient corresponding to the value range of the first dirty blocking degree is selected; or the third dirty blocking degree and the preset difference threshold are summed to obtain the fourth dirty blocking. The degree, when the third dirty blocking degree and the fourth dirty blocking degree belong to different value intervals, the preset proportional coefficient corresponding to the value interval of the third dirty blocking degree is selected.

In order to solve the above problems, a home appliance according to still another embodiment of the present invention includes the indoor air dust particle concentration detecting system of the embodiment of the above aspect.

The household appliance according to the embodiment of the present invention can detect indoor dust particle concentration by using the indoor air dust particle detecting system of the above aspect, and provide the user with convenient and timely understanding, without adding other devices, enriching the application function, and reducing the dust detecting cost. .

In at least one embodiment, the household appliance includes an air conditioner and an air filter.

In order to solve the above problems, a further aspect of the present invention provides a computer device including a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein the processing When the program is executed, the indoor airborne dust particle concentration detecting method is implemented.

In order to solve the above problems, another embodiment of the present invention provides a non-transitory computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the indoor airborne dust particle concentration detection.

In order to solve the above problems, a further aspect of the present invention provides a computer program product for performing an indoor air dust particle when an instruction in the computer program product is executed by a processor A concentration detecting method for detecting indoor air dust particle concentration proposed in the above aspect embodiments.

DRAWINGS

1 is a flow chart of a method for detecting concentration of indoor air dust particles according to an embodiment of the present invention;

2 is a schematic diagram showing a corresponding curve of a dirty plug change rate and indoor air dust particle concentration according to an embodiment of the present invention;

3 is a schematic diagram showing a preset proportional coefficient distribution of dust particle concentration and dirty bet change rate according to an embodiment of the present invention;

4 is a schematic diagram showing a relationship between dust particle concentration and dirty plugging change rate corresponding to different dirty plugging degree intervals of FIG. 3 according to an embodiment of the present invention;

5 is a block diagram of an indoor air dust particle concentration detecting system according to an embodiment of the present invention;

Figure 6 is a block diagram of an indoor air dust particle concentration detecting system in accordance with one embodiment of the present invention;

Figure 7 is a block diagram of a home appliance in accordance with an embodiment of the present invention.

detailed description

One of ordinary skill in the art can understand that all or part of the steps carried by the method of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. The integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.

The above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

An indoor air dust particle concentration detecting method, a detecting system, and a home appliance according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

It has been found that in the operation of household appliances including air filters and air filters, including filter dust nets, the amount of dust particles adsorbed by the filter net per unit time is proportional to the concentration of dust particles in the indoor air. Therefore, the dust filter net is dirty in the same time. The change of the degree of plugging is proportional to the concentration of dust particles, that is, the rate of change of the dust filter is proportional to the concentration of dust particles in the air. Using this proportional relationship, the concentration of dust particles in the indoor air can be determined, while also indicating the approximate bacterial concentration.

1 is a flow chart of a method for detecting indoor airborne dust particle concentration according to an embodiment of the present invention, the detecting method comprising:

S1, obtaining the dirty gambling degree of the dust filter of the household appliance and obtaining the dirty gambling according to the dirty gambling degree of the dust filter net Rate of change.

S2, calculating and displaying the corresponding indoor air dust particle concentration according to the dirty bet change rate.

Among them, the degree of dirty gambling of the dust filter of the air conditioner or the air filter can be judged by detecting relevant parameters of the household appliance. Specifically, the dirty bet parameter of the household appliance is detected, the correspondence table of the dirty bet parameter and the dirty bet degree is queried according to the dirty bet parameter or normalized to determine the dirty bet degree of the corresponding dust filter.

For example, in some embodiments of the present invention, the degree of dirty plugging of different dust filters is represented by 1000 values of 1%, 2%, ... 1000‰, and of course, other values may be selected to represent the dust filter. Dirty blockage, no specific restrictions.

In some embodiments of the present invention, the degree of dirty gambling of the dust filter can be obtained by looking up the table. Specifically, setting a parameter for determining the degree of dirty plugging of the air filter dust net is the above-mentioned dirty bet; pre-establishing a correspondence table between the dirty bet parameter and the dirty plugging degree of the air filter dust net; collecting the current parameter value, and querying the place The corresponding relationship table is obtained, and the current dirty blocking degree corresponding to the current parameter value is obtained.

In practical applications, the parameter setting step and the corresponding relationship table establishing step are set according to specific experimental data before the household appliance leaves the factory. When the user uses the air conditioner, the current dirty bet parameter value is directly collected, and the preset corresponding correspondence is queried. The relationship table can obtain the current dirty block level corresponding to the current parameter value. The dirty bet parameter may include a wind volume, a running time of the household appliance, a running power of the fan, a pressure difference between the two sides of the dust filter, a photocurrent value of the infrared light or the visible light passing through the filter net on the photosensitive element, or the photosensitive element The voltage across the resistor in series. The longer the running time of household appliances, the dirty degree of dust filter net The higher. The dirty plugging of the dust filter will affect the air circulation. Therefore, the dust filter is dirty. The lower the operating speed of the DC fan, the smaller the operating power of the fan. The higher the dirty plugging degree of the dust filter net is, the smaller the air volume is, and the pressure difference between the two sides of the dust filter net is larger. Therefore, in the embodiment, the dirty plugging degree of the air filter dust filter can be determined by detecting the above parameters.

In a preferred embodiment, the value of the photocurrent formed on the photosensitive member by infrared light or visible light passing through the dust filter can also be used to determine the degree of dirty plugging of the dust filter. The method uses a single-chip microcomputer to control the illumination of the illumination device, and the infrared light or the visible light penetrates the filter filter and is irradiated to the photosensitive element disposed on the other side of the filter dust net, such as a photodiode or a phototransistor, and the photosensitive element converts the optical signal into an electrical signal. And produce photocurrent. If dust or the like adheres to the dust filter net, the infrared light that is irradiated onto the dust filter net is reflected, scattered, and absorbed. Therefore, the higher the degree of dirty plugging of the dust filter net, the less light is irradiated onto the photosensitive member through the filter dust net, and the photosensitive element is generated. The smaller the photocurrent. The degree of dirty plugging of the dust filter can be known by collecting the photocurrent generated by the photosensitive element or by collecting the voltage across the resistor in series with the photosensitive element. This method of judgment is low in cost, easy to implement, and has high versatility and high accuracy.

At the same time, in this embodiment, the correspondence table between the dirty gambling parameters and the different dirty blocking levels is preset, and by querying the corresponding relationship table, the current dirty blocking degree corresponding to the current parameter value can be obtained, and the method is simple and can quickly obtain the current dirty state. Blocking the result.

In some embodiments of the present invention, the following method may also be used to obtain the current dirty plugging degree of the air conditioner dust filter, specifically: setting a dirty gambling parameter for determining the dirty plugging degree of the air conditioner dust filter; obtaining the first use of the air conditioner The value of the dirty bet parameter is set to the first value of the dust filter of the corresponding dust filter; After the preset time interval, the dirty bet parameter value is set to the second value of the corresponding dust filter. The current parameter value is collected, and the current dirty value corresponding to the current parameter value is obtained by the normalization method.

For example, when the air conditioner is used for the first time, the collected photosensor current photocurrent value corresponds to a dirty plugging degree of 0%, and the normal user uses 500 hours normally and the filter net is not cleaned during use, the collected photosensitive element light The dirty plugging degree corresponding to the current value is set to 1000 ‰, and the remaining dirty plugging degree value is a linear aliquot conversion corresponding to the measured photocurrent value of the photosensitive element at the data difference between the two ends, that is, normalization by min-max The method performs a linear change, and the corresponding degree of dirty dust filter is treated to a value between 0% and 1000 。. In the above steps, the parameter setting process for determining the degree of dirty plugging of the air filter dust filter, the setting process of the two end values as the reference value, and the acquisition process of the parameter range corresponding to each of the one thousand levels are all in the process of acquiring Before the air conditioner is shipped from the factory, it is obtained through experimental tests. When the user uses the method of the present invention to automatically compensate the air conditioning air volume, the data can be directly used. Of course, other criteria can be selected to define the two-end value, and other ways to obtain the parameter range corresponding to each level are within the protection scope of the present invention.

Further, for obtaining the dirty bet change rate, in some embodiments of the present invention, obtaining: obtaining the first dirty bet level of the dust filter net and obtaining the second dirty bet degree of the dust filter net after the preset time interval And calculating a dirty gambling degree change value according to the first dirty gambling degree and the second dirty gambling degree; calculating a ratio of the dirty gambling degree change value to the preset time to obtain a dirty blocking change rate. That is, the rate of change of the dirty plug is the ratio of the change value of the dirty plugging degree of the dust filter net to the preset time.

In the embodiment of the present invention, the concentration of the dust particles measured by setting the preset time to be too short is not accurate enough. It is too long to reflect the concentration of indoor airborne dust particles in time, so it can be set within 10-40 minutes, such as 20 minutes or 30 minutes, which has very good results.

In some embodiments of the present invention, the rate of change of the dirty bet can also be obtained by acquiring the third degree of dirty plugging of the dust filter and continuously collecting the dirty plugging degree of the dust filter according to the preset frequency; recording the dirty plugging when the collected The time elapsed between the degree and the third dirty block degree reaches a preset difference threshold, and the ratio of the preset difference threshold to the elapsed time is calculated to obtain a dirty block change rate.

Specifically, by fixing a dirty plugging degree change value Δd, for example, 10 ‰, and then continuously collecting the dirty plugging degree of the dust filter net according to a preset frequency, for example, obtaining the dirty plugging degree of the dust filter net in half a minute, and accumulating the time, When the change value of the dirty plugging degree reaches Δd, the required time Δt is recorded, and then the rate of change of the dirty plugging is calculated. This method can quickly obtain the rate of change of the dirty plug when the concentration of dust particles in the room is large, and quickly obtain the concentration value of the dust particles, without having to go through the fixed time interval of the first method, thereby notifying the user of window ventilation or control change in a timely manner. The gas device is ventilated.

In some embodiments of the invention, the product of the dirty bet change rate and the preset scale factor is calculated to obtain a corresponding indoor airborne dust particle concentration. Specifically, a preset proportional coefficient k corresponding to the dirty air blocking rate v of the dust filter and the indoor air dust particle concentration c is obtained in advance; the dirty plugging rate of the dust filter is multiplied by a preset proportional coefficient to obtain corresponding indoor air dust particles. concentration. In this embodiment, the preset scale factor may be a fixed value.

For example, the calculation formula of the indoor air dust particle concentration can be set as: c=k*v, where the k value is the measured dust particle concentration and the dust filter viscous plugging speed change under the environment of different dust particle concentrations in the laboratory. The corresponding preset scale factor of the rate is a fixed value. 2 is a schematic diagram showing a corresponding curve of a dirty bet change rate and an indoor air dust particle concentration according to an embodiment of the present invention. Wherein, when the change value of the dirty plugging degree in the Δt01 time is Δd01, the dirty plugging change rate v01=Δd01/Δt01 can be obtained, and then the indoor air dust particle concentration is c01=k*v01.

Of course, the preset proportional coefficient mentioned above may also be indefinite. The concentration of indoor air dust particles is proportional to the rate of change of dirty plugging, and the preset proportional coefficient k becomes larger as the degree of dirty plugging of the dust filter increases. In some embodiments of the present invention, the value interval to which the dirty gambling degree of the dust filter belongs belongs is determined, and the preset proportional coefficient is determined according to the value interval to which the dirty gambling degree of the dust filter belongs.

Specifically, a correspondence table between the dirty plugging degree of the dust filter net and the preset proportional coefficient of different value intervals is established in advance; and the corresponding relationship table is queried, and according to the first dirty blocking degree or the second dirty blocking degree The value interval determines the value of the proportional coefficient; or, the third dirty blocking degree and the preset difference threshold are summed to generate a fourth dirty blocking degree, and the value according to the third dirty blocking degree or the fourth dirty blocking degree is obtained. The interval determines the value of the preset proportional coefficient; further, the formula for calculating the indoor air dust particle concentration is generated according to the preset proportional coefficient.

In some embodiments of the present invention, FIG. 3 is a schematic diagram showing a preset proportional coefficient distribution of dust particle concentration and dirty bet change rate corresponding to different dirty betting levels according to an embodiment of the present invention. Specifically, the dirty plugging degree of the dust filter net is segmented, and the ratio of the dust particle concentration to the dirty plugging change rate is different in the value interval of different dirty plugging degrees, that is, the preset proportional coefficient k is different. As shown in Figure 3, the specific segmentation interval and its corresponding preset scale factor are calculated and calculated as follows:

1 When 0‰≦d<350‰, c=k1*v;

2 When 351‰≦d<600‰, c=k2*v;

3 When 601‰≦d<850‰, c=k3*v;

4 When 851‰≦d<1000‰, c=k4*v;

When d≧1000‰, the dust particle detection function is turned off.

In the present embodiment, for the same dust particle concentration, when the degree of dirty plugging of the dust filter is different, the rate of change of the dirty plugging is different, and the rate of change of the dirty plug is lowered as the degree of dirty plugging of the dust filter increases. . Therefore, the same dirty plugging rate measured under the dirty plugging degree of different dust filter nets has different indoor dust particle concentration, and the dust filter change rate corresponding to the change rate of the dust filter is higher. , so you need to correspond to a larger scale factor value.

Figure 4 is a graph showing the relationship between the concentration of dust particles and the rate of change of dirty plugging for different dirty plugging intervals in Figure 3, where k1, k2, k3, and k4 correspond to dust particles in the interval of 1, 2, 3, and 4. The preset proportional coefficient value of the concentration and the rate of change of the dirty plug, the corresponding curve is the relationship between the dust particle concentration and the dirty plugging change rate in the corresponding interval.

In the process of obtaining the dirty gambling change rate, when the indoor air dust particle concentration is determined, when the first dirty blocking degree and the second dirty blocking degree respectively belong to different value ranges, the first dirty blocking degree is selected. The preset proportional coefficient corresponding to the value interval; or, when the third dirty blocking degree and the fourth dirty blocking degree belong to different value ranges, the proportional coefficient corresponding to the value range of the third dirty blocking degree is selected.

For example, when the degree of dirty plugging changes Δd02 within Δt02, the change rate of dirty plugging v02=△d02/△t02 can be obtained, and the degree of dirty plugging d0 and d1 measured at the beginning and end of time interval Δt02 are both In the range of 601 ‰≦ d < 850 ,, that is, in the interval 3, the indoor air dust particle concentration is obtained as c02=k3*v02. And when d0 belongs to the range of 601‰≦d<850‰, for example, 800‰, d1 belongs to the range of 650‰≦d<1000‰, for example, 860‰, that is, when d0 and d1 belong to two different sections of 3 and 4, respectively, The concentration is calculated according to the preset ratio coefficient k3 of the previous interval, that is, the interval of 3, that is, the calculation result of the indoor air dust particle concentration is c03=k3*v02.

After the concentration of indoor air dust particles is obtained, a display module such as a liquid crystal display panel can be used to display the concentration of the indoor air dust particles, so that the user can timely understand the situation and perform subsequent control steps. For example, when the concentration of indoor air dust particles is greater than a preset concentration threshold, the user is prompted to open the window by sound and light, for example, by buzzer to prompt the user to open the window for ventilation. In other embodiments, when a ventilation device is built in a household appliance, such as an air conditioner, when the indoor air dust particle concentration is greater than a preset concentration threshold, the ventilation device can be automatically turned on to perform air exchange, so that indoor and outdoor air is performed. Interaction.

In summary, the indoor air dust particle concentration detecting method according to the embodiment of the present invention detects the dirty plugging degree of the dust filter net in a household appliance such as an air conditioner or an air filter, and obtains the indoor air dust particle concentration according to the detection result, thereby further When the concentration is high, the household is reminded to ventilate or directly drive the ventilation device for ventilation. Not only does it need to add any other devices, but also the detection method is simple and easy to implement, enriching the functions of household appliances such as air conditioners and air filters, and reducing the function. User for air detection cost.

An indoor air dust particle concentration detecting system according to another embodiment of the present invention will be described below with reference to the accompanying drawings.

5 is a block diagram of an indoor air dust particle concentration detecting system according to an embodiment of the present invention. As shown in FIG. 5, the indoor air dust particle concentration detecting system 100 includes a dirty bet change rate obtaining module 10, a dust particle concentration generating module 20, and Display module 30.

The dirty gambling change rate obtaining module 10 is configured to obtain the dirty gambling degree of the dust filter of the household appliance and obtain the dirty gambling change rate according to the dirty gambling degree of the dust filter; the dust particle concentration generating module 20 is configured to calculate the corresponding according to the dirty gambling change rate. Indoor air dust particle concentration; display module 30 is used to display indoor air dust particle concentration.

The indoor air dust particle concentration detecting system 100 according to the embodiment of the present invention can provide indoor air dust particle concentration to the user, has a simple structure, and reduces the cost of performing air detection.

As shown in FIG. 6, the indoor air dust particle concentration detecting system 100 further includes an alarm module 40 and/or an automatic control module 50, and the alarm module 40 is configured to adopt an acousto-optic mode when the indoor air dust particle concentration is greater than a preset concentration threshold. The user is prompted to open the window; the automatic control module 50 is configured to automatically turn on the ventilation device when the indoor air dust particle concentration is greater than a preset concentration threshold.

Further, the dirty blocking change rate obtaining module may include a parameter detecting unit and a dirty bet degree obtaining unit, wherein the parameter detecting unit is configured to detect a dirty bet parameter of the household appliance; the dirty bet degree obtaining unit is configured to perform the query according to the dirty bet parameter Correspondence table of dirty gambling parameters and dirty gambling degree or normalization Processing to determine the degree of dirty gambling of the corresponding filter screen.

For the acquisition of the dirty gambling change rate, in some embodiments of the present invention, the dirty blocking change rate obtaining module 10 includes a first obtaining unit and a first calculating unit, and the first obtaining unit is configured to obtain the first of the dust filter network. Dirty gambling degree and obtaining the second dirty gambling degree of the dust filter after the preset time; the first calculating unit is configured to calculate the dirty gambling degree change value according to the first dirty gambling degree and the second dirty gambling degree, and calculate the dirty gambling degree The ratio of the change value to the preset time interval to obtain the rate of dirty block change. The preset time interval ranges from 10 to 40 minutes.

In some embodiments of the present invention, the dirty blocking change rate obtaining module 10 includes a second acquiring unit and a second calculating unit, and the second obtaining unit is configured to acquire the third dirty blocking degree of the dust filter network and continuously collect the collected frequency according to the preset frequency. The degree of dirty plugging of the dust filter; the second calculating unit is configured to record the time elapsed when the difference between the collected dirty plugging degree and the third dirty plugging degree reaches the preset difference threshold, and calculate the preset difference threshold The ratio to the time elapsed to obtain the rate of dirty block change.

The dust particle concentration generation module 20 calculates the product of the dirty bet change rate and the preset scale factor to obtain a corresponding indoor air dust particle concentration. The preset scale factor may be a fixed value obtained according to an experiment; of course, the preset scale factor may also be a value different according to different dirty gambling change rates.

In some embodiments of the present invention, the dust particle concentration generating module 20 includes a storage unit, a query unit, and a generating unit, wherein the storage unit is configured to store the dirty plugging degree and preset of the dust filter net of different value intervals established in advance. a correspondence table of the proportional coefficients; the query unit is configured to determine a value interval to which the dirty gambling degree of the dust filter belongs, and query the correspondence table according to the value interval to determine the preset proportional system The generating unit is configured to generate a corresponding indoor air dust particle concentration according to the dirty bet change rate and the preset proportional coefficient.

Wherein, when the first dirty blocking degree and the second dirty blocking degree belong to different value ranges respectively, the first proportional ratio coefficient corresponding to the value range of the first dirty blocking degree is selected; or, the third dirty blocking is performed. The degree and the preset difference threshold are summed to obtain the fourth dirty block degree. When the third dirty block degree and the fourth dirty block degree belong to different value ranges, the pre-correspondence corresponding to the value range of the third dirty block degree is selected. Set the scale factor. Further, the generating unit calculates a product of the dirty bet change rate and the preset proportional coefficient to obtain a corresponding indoor air dust particle concentration.

After the indoor air dust particle concentration is obtained, the display module 30 such as a liquid crystal display panel can be used to display the concentration of the indoor air dust particles, so that the user can timely understand the situation and perform subsequent control steps. For example, when the indoor air dust particle concentration is greater than a preset concentration threshold, the user is prompted to open the window by sound and light, for example, by buzzer prompting the user to open the window to ventilate.

Based on the indoor air dust particle concentration detecting system of the embodiment of the above aspect, a home appliance according to another embodiment of the present invention will be described below with reference to the drawings.

7 is a block diagram of a home appliance according to an embodiment of the present invention. As shown in FIG. 7, the home appliance 1000 includes the indoor air dust particle concentration detecting system 100 of the above embodiment. Specifically, the home appliance 1000 may include, but is not limited to, an air conditioner and an air filter.

The household appliance 1000 according to the embodiment of the present invention can detect the concentration of dust particles in the room by using the indoor air dust particle detecting system 100 of the above aspect, and provide the same to the user without adding other devices. Enriched application functions and reduced dust detection costs.

The embodiment of the present invention further provides a computer device, which includes a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the program, the embodiment of the foregoing aspect may be implemented. Indoor air dust particle concentration detection method.

The embodiment of the invention further provides a non-transitory computer readable storage medium, on which a computer program is stored, which is executed by the processor to implement the indoor air dust particle concentration detecting method proposed in the above embodiments.

The embodiment of the invention further provides a computer program product, when the instructions in the computer program product are executed by the processor, performing an indoor air dust particle concentration detecting method, the method comprising the indoor air dust particles proposed in the above embodiments Concentration detection method.

It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply such entities or operations. There is any such actual relationship or order between them. Furthermore, the term "comprises" or "comprises" or "comprises" or any other variations thereof is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device that comprises a plurality of elements includes not only those elements but also Other elements, or elements that are inherent to such a process, method, item, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

Logic and/or steps represented in the flowchart or otherwise described herein, for example, may be recognized An ordering list of executable instructions for implementing logical functions may be embodied in any computer readable medium for use in an instruction execution system, apparatus, or device (eg, a computer-based system, a system including a processor, or other The system can be used from, or in conjunction with, an instruction execution system, apparatus, or device to execute a system, apparatus, or device. For the purposes of this specification, a "computer-readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with the instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM). In addition, the computer readable medium may even be a paper or other suitable medium on which the program can be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, other suitable The method is processed to obtain the program electronically and then stored in computer memory.

It should be understood that portions of the invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuit, ASIC with suitable combination logic gate, Programmable Gate Array (PGA), Field Programmable Gate Array (FPGA) Wait.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical or electrical connection; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements, unless otherwise specified Limited. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification, as well as features of various embodiments or examples, may be combined and combined.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Claims (23)

A method for detecting concentration of indoor air dust particles, comprising: Obtaining a dirty gambling degree of the dust filter of the household appliance and obtaining a dirty gambling change rate according to the dirty gambling degree of the dust filter; The corresponding indoor air dust particle concentration is calculated and displayed according to the dirty bet change rate. The method for detecting concentration of indoor airborne dust particles according to claim 1, further comprising: When the indoor air dust particle concentration is greater than the preset concentration threshold, the user is prompted to open the window to ventilate and/or automatically turn on the ventilating device. The indoor air dust particle concentration detecting method according to claim 1 or 2, wherein obtaining the dirty gambling degree of the dust filter of the household appliance comprises: Detecting dirty gambling parameters of the household appliance; And querying, according to the dirty bet parameter, a correspondence table of the dirty bet parameter and the dirty bet degree or performing a normalization process to determine a dirty bet degree of the corresponding dust filter net. The indoor air dust particle concentration detecting method according to any one of claims 1 to 3, wherein the dirty gambling degree of the dust filter in the room is acquired, and the dirty gambling change rate is obtained according to the dirty gambling degree of the dust filter, including : Obtaining a first dirty gambling degree of the dust filter net and acquiring a second dirty gambling degree of the dust filter net after a preset time interval; Calculating a dirty bet degree change value according to the first dirty bet level and the second dirty bet degree; Calculating a ratio of the dirty bet degree change value to the preset time interval to obtain the dirty plug change rate. The indoor air dust particle concentration detecting method according to any one of claims 1 to 4, wherein the preset time interval ranges from 10 to 40 minutes. The indoor air dust particle concentration detecting method according to any one of claims 1 to 5, wherein a dirty gambling degree of the dust filter in the room is acquired, and a dirty gambling change rate is obtained according to the dirty gambling degree of the dust filter, including : Obtaining a third dirty plugging degree of the dust filter net and continuously collecting the dirty plugging degree of the dust filter net according to a preset frequency; Recording the time elapsed when the difference between the collected dirty blocking degree and the third dirty blocking degree reaches a preset difference threshold; Calculating a ratio of the preset difference threshold to the elapsed time to obtain the dirty blocking change rate. The indoor air dust particle concentration detecting method according to any one of claims 1 to 6, wherein the obtaining the corresponding indoor air dust particle concentration according to the dirty bet change rate comprises: The product of the dirty bet change rate and the preset scale factor is calculated to obtain a corresponding indoor air dust particle concentration. A method for detecting concentration of indoor air dust particles according to any one of claims 1 to 7, characterized in that It also includes: Determining a value interval to which the dirty gambling degree of the dust filter net belongs; The preset proportional coefficient is determined according to a value interval to which the dirty gambling degree of the dust filter net belongs. The indoor air dust particle concentration detecting method according to any one of claims 1 to 8, characterized in that When the first dirty blocking degree and the second dirty blocking degree belong to different value intervals, the preset proportional coefficient corresponding to the value range of the first dirty blocking degree is selected; Alternatively, the third dirty blocking degree and the preset difference threshold are summed to obtain a fourth dirty blocking degree, and when the third dirty blocking degree and the fourth dirty blocking degree belong to different value intervals, the first selection is performed. The preset proportional coefficient corresponding to the value interval of the three dirty plugging degree. An indoor air dust particle concentration detecting system, comprising: a dirty gambling change rate obtaining module, configured to acquire a dirty gambling degree of a dust filter of the household appliance, and obtain a dirty gambling change rate according to the dirty gambling degree of the dust filter; a dust particle concentration generating module, configured to calculate a corresponding indoor air dust particle concentration according to the dirty bet change rate; A display module is configured to display the concentration of the indoor air dust particles. The indoor air dust particle concentration detecting system according to claim 10, further comprising: An alarm module, wherein the alarm module is used when the indoor air dust particle concentration is greater than a preset concentration threshold When the value is used, the user is prompted to open the window by sound and light; and/or An automatic control module is configured to automatically turn on the ventilating device when the indoor air dust particle concentration is greater than a preset concentration threshold. The indoor air dust particle concentration detecting system according to claim 10 or 11, wherein the dirty block change rate obtaining module comprises: a parameter detecting unit, configured to detect dirty gambling parameters of the household appliance; The dirty gambling degree obtaining unit is configured to query the correspondence table of the dirty gambling parameter and the dirty gambling degree according to the dirty gambling parameter or perform a normalization process to determine a dirty gambling degree of the corresponding dust filter. The indoor air dust particle concentration detecting system according to any one of claims 10 to 12, wherein the dirty block change rate obtaining module comprises: a first obtaining unit, configured to obtain a first dirty gambling degree of the dust filter net, and obtain a second dirty gambling degree of the dust filter net after a preset time; a first calculating unit, configured to calculate a dirty bet degree change value according to the first dirty bet level and the second dirty bet degree, and calculate a ratio of the dirty bet degree change value to the preset time interval to obtain The rate of change of the dirty blockage. The indoor air dust particle concentration detecting system according to any one of claims 10 to 13, wherein the preset time interval ranges from 10 to 40 minutes. The indoor air dust particle concentration detecting system according to any one of claims 10 to 14, wherein the dirty block change rate obtaining module comprises: a second acquiring unit, configured to acquire a third dirty plugging degree of the dust filter net, and continuously collect a dirty plugging degree of the dust filter net according to a preset frequency; a second calculating unit, configured to record a time elapsed when a difference between the collected dirty blocking degree and the third dirty blocking degree reaches a preset difference threshold, and calculate the preset difference threshold and the The ratio of the elapsed time to obtain the rate of change in the dirty plug. The indoor air dust particle concentration detecting system according to any one of claims 10-15, wherein the dust particle concentration generating module calculates a product of the dirty bet change rate and a preset proportional coefficient to obtain a corresponding indoor. Air dust particle concentration. The indoor air dust particle concentration detecting system according to any one of claims 10 to 16, wherein the dust particle concentration generating module comprises: a storage unit, configured to store a correspondence table between a dirty plugging degree of the dust filter net and a preset proportional coefficient of the pre-established different value intervals; a query unit, configured to determine a value interval to which the dirty gambling degree of the dust filter belongs, and query the correspondence relationship table according to the value interval to determine the preset proportional coefficient; And a generating unit, configured to generate a corresponding indoor air dust particle concentration according to the dirty bet change rate and the preset proportional coefficient. The indoor air dust particle concentration detecting system according to any one of claims 10-17, wherein the query unit, when the first dirty blocking degree and the second dirty blocking degree respectively belong to different value ranges, Selecting a preset proportional coefficient corresponding to the value interval of the first dirty blocking degree; Alternatively, the third dirty blocking degree and the preset difference threshold are summed to obtain a fourth dirty blocking degree, and when the third dirty blocking degree and the fourth dirty blocking degree belong to different value intervals, the first selection is performed. The preset proportional coefficient corresponding to the value interval of the three dirty plugging degree. A household appliance comprising the indoor air dust particle concentration detecting system according to any one of claims 10-18. The home appliance according to claim 19, wherein the home appliance comprises an air conditioner and an air filter. A computer device, comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, wherein when the processor executes the program, the implementation is as claimed in claim 1 The method of any of 9. A non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the program, when executed by a processor, implements the method of any of claims 1-9. A computer program product for performing an indoor airborne dust particle concentration detection method when the instructions in the computer program product are executed by a processor, the method comprising the method of any one of claims 1-9 .

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