CN115717750A - Indoor sterilization method and device, air conditioner and storage medium - Google Patents
Indoor sterilization method and device, air conditioner and storage medium Download PDFInfo
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- CN115717750A CN115717750A CN202211491278.4A CN202211491278A CN115717750A CN 115717750 A CN115717750 A CN 115717750A CN 202211491278 A CN202211491278 A CN 202211491278A CN 115717750 A CN115717750 A CN 115717750A
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- 238000000034 method Methods 0.000 title claims abstract description 78
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 69
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 66
- 244000005700 microbiome Species 0.000 claims abstract description 229
- 239000011324 bead Substances 0.000 claims abstract description 146
- 238000011217 control strategy Methods 0.000 claims abstract description 31
- 238000009423 ventilation Methods 0.000 claims abstract description 25
- 230000000813 microbial effect Effects 0.000 claims description 45
- 238000003915 air pollution Methods 0.000 claims description 16
- 230000008859 change Effects 0.000 claims description 10
- 238000004590 computer program Methods 0.000 claims description 9
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 230000000875 corresponding effect Effects 0.000 description 27
- 230000008569 process Effects 0.000 description 26
- 230000001276 controlling effect Effects 0.000 description 25
- 239000003507 refrigerant Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 8
- 238000004378 air conditioning Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 241000700605 Viruses Species 0.000 description 2
- 244000052616 bacterial pathogen Species 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000001332 colony forming effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Abstract
The embodiment of the invention provides an indoor sterilization method, an indoor sterilization device, an air conditioner and a storage medium, and relates to the technical field of air conditioner control. The method is applied to an air conditioner, the air conditioner comprises ultraviolet lamp beads, a plurality of microorganism concentration threshold values and a plurality of irradiation intensities of the ultraviolet lamp beads are prestored in the air conditioner, and the method comprises the following steps: responding to a sterilization starting instruction, acquiring the concentration of microorganisms in indoor air, determining a concentration range interval to which the concentration of the microorganisms belongs and corresponding target irradiation intensity based on each microorganism concentration threshold, determining a control strategy of the ultraviolet lamp bead based on the concentration range interval, the target irradiation intensity and the indoor ventilation frequency of the air conditioner, and controlling the working state of the ultraviolet lamp bead based on the control strategy. The embodiment of the invention realizes effective killing of microorganisms in indoor air, makes the sterilization mode of sterilization by the ultraviolet lamp beads more reasonable, saves the energy consumption of the ultraviolet lamp beads and prolongs the service life of the ultraviolet lamp beads.
Description
Technical Field
The invention relates to the technical field of air conditioner control, in particular to an indoor sterilization method and device, an air conditioner and a storage medium.
Background
With the continuous updating and upgrading of air conditioner products, the attention of consumers on whether the air conditioner can sterilize indoor germs is continuously increased, and the indoor germs are sterilized by the air conditioner so as to reduce the problem that microorganisms such as bacteria and viruses and the like grow on an evaporator after an indoor unit of the air conditioner runs for a long time. In the related art, the indoor sterilization mode of the air conditioner is generally ultraviolet irradiation, nano water ions, positive and negative ions, and the like.
To ultraviolet irradiation's sterilization mode, prior art usually can set up ultraviolet lamp pearl in the air conditioner to utilize the characteristic that excessive ultraviolet is harmful to the biology to kill the microorganism, this sterilization mode is usually through setting up its work of certain fixed irradiation intensity control to ultraviolet lamp pearl, and its sterilization mode's rationality remains to be improved.
Disclosure of Invention
In view of this, the present invention provides an indoor sterilization method, an indoor sterilization device, an air conditioner, and a storage medium, so that the sterilization mode of ultraviolet irradiation in the air conditioner is more reasonable on the premise of saving energy consumption of the ultraviolet lamp beads.
In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:
in a first aspect, an embodiment of the present invention provides an indoor sterilization method, which is applied to an air conditioner, where the air conditioner includes an ultraviolet lamp bead, multiple microbial concentration thresholds and multiple irradiation intensities of the ultraviolet lamp bead are prestored in the air conditioner, and the method includes:
responding to a sterilization starting instruction, and acquiring the concentration of microorganisms in indoor air;
determining a concentration range interval to which the microorganism concentration belongs and corresponding target irradiation intensity based on each microorganism concentration threshold;
determining a control strategy of the ultraviolet lamp bead based on the concentration range interval, the target irradiation intensity and the indoor ventilation frequency of the air conditioner;
and controlling the working state of the ultraviolet lamp bead based on the control strategy.
In alternative embodiments, the microbial concentration threshold comprises a first concentration threshold, a second concentration threshold, a third concentration threshold, and a fourth concentration threshold;
the first concentration threshold value is used for representing the concentration of microorganisms in heavy air pollution, the second concentration threshold value is used for representing the concentration of microorganisms in light air pollution, the third concentration threshold value is used for representing the concentration of microorganisms in common air, and the fourth concentration threshold value is used for representing the concentration of microorganisms in clean air;
the plurality of irradiation intensities comprises:
a first irradiance intensity determined from the first concentration threshold, an indoor volume, and a windshield of the air conditioner;
a second irradiance intensity determined from the second concentration threshold, an indoor volume, and a windshield of the air conditioner;
a third irradiance determined based on the third concentration threshold, the indoor volume, and a windshield of the air conditioner.
In an alternative embodiment, the step of determining the concentration range interval to which the microorganism concentration belongs and the corresponding target irradiation intensity based on each microorganism concentration threshold value includes:
comparing the microorganism concentration to the first, second and third concentration thresholds, respectively;
if the microorganism concentration is greater than or equal to the first concentration threshold, determining that the microorganism concentration belongs to a first concentration range interval, and taking the first irradiation intensity as a target irradiation intensity corresponding to the first concentration range interval;
if the microorganism concentration is greater than or equal to the second concentration threshold and smaller than the first concentration threshold, determining that the microorganism concentration belongs to a second concentration range interval, and taking the first irradiation intensity as a target irradiation intensity corresponding to the second concentration range interval;
if the microorganism concentration is greater than or equal to the third concentration threshold and smaller than the second concentration threshold, determining that the microorganism concentration belongs to a third concentration range interval, and taking the second irradiation intensity as a target irradiation intensity corresponding to the third concentration range interval;
and if the microorganism concentration is smaller than the third concentration threshold, determining that the microorganism concentration belongs to a fourth concentration range interval, and taking the third irradiation intensity as the target irradiation intensity corresponding to the fourth concentration range interval.
In an optional embodiment, the step of determining a control strategy of the ultraviolet lamp bead based on the concentration range interval, the target irradiation intensity, and the number of indoor air exchanges of the air conditioner includes:
determining a first operation time, a second operation time, a third operation time and an interval time of the ultraviolet lamp bead according to the indoor ventilation times of the air conditioner, wherein the first operation time is less than the second operation time, the second operation time is less than the third operation time, and the interval time is less than the first operation time;
judging the concentration range interval of the microorganism concentration;
under the condition that the microorganism concentration belongs to the first concentration range interval, controlling the ultraviolet lamp beads to work at the first irradiation intensity and the first running time, and then obtaining the microorganism concentration in the indoor air at intervals;
under the condition that the microorganism concentration belongs to the second concentration range interval, controlling the ultraviolet lamp bead to work at the first irradiation intensity and the second operation time, and then obtaining the microorganism concentration in the indoor air at intervals;
under the condition that the microorganism concentration belongs to the third concentration range interval, controlling the ultraviolet lamp bead to work at the second irradiation intensity and a third operation time, and then obtaining the microorganism concentration in the indoor air at intervals;
and under the condition that the concentration of the microorganisms belongs to the fourth concentration range, controlling the ultraviolet lamp beads to work at the third irradiation intensity, and then acquiring the concentration of the microorganisms in the indoor air at intervals.
In an alternative embodiment, the first operation time is a time taken for the number of times of air exchange in the air conditioner to reach three times;
the second running time is the time for the indoor ventilation frequency of the air conditioner to reach six times;
the third operation time is the time for the indoor air exchange times of the air conditioner to reach twelve times;
the interval time is the time for the air conditioner to change every 0.1 time.
In an optional embodiment, the step of determining the control strategy of the ultraviolet lamp bead based on the concentration range interval, the target irradiation intensity, and the number of indoor air exchanges of the air conditioner further includes:
under the condition that the concentration of the microorganisms belongs to the fourth concentration range interval, calculating to obtain a reference microorganism concentration value according to the third concentration threshold value and a fourth concentration threshold value;
calculating the tolerance of the two on the basis of the acquired microbial concentration in the indoor air and the reference microbial concentration value;
and if the allowance is less than or equal to 20%, controlling the ultraviolet lamp bead to stop working.
In an optional embodiment, after the step of controlling the ultraviolet lamp bead to stop operating, the method further includes:
acquiring the concentration of microorganisms in the indoor air once every set time interval;
under the condition that the concentration of the microorganisms belongs to the third concentration range interval, controlling the ultraviolet lamp beads to start working at the second irradiation intensity, and obtaining the concentration of the microorganisms in the indoor air once every other interval time after working at the third running time;
returning to the step of judging the concentration range section to which the microorganism concentration belongs.
In a second aspect, an embodiment of the present invention provides an indoor sterilization device, which is applied to an air conditioner, where the air conditioner includes an ultraviolet lamp bead, multiple microbial concentration thresholds and multiple irradiation intensities of the ultraviolet lamp bead are prestored in the air conditioner, and the device includes:
the acquisition module is used for responding to a sterilization starting instruction and acquiring the concentration of microorganisms in indoor air;
the parameter determining module is used for determining a concentration range interval to which the microbial concentration belongs and corresponding target irradiation intensity based on each microbial concentration threshold;
the ultraviolet lamp bead control strategy determining module is used for determining a control strategy of the ultraviolet lamp bead based on the concentration range interval, the target irradiation intensity and the indoor ventilation times of the air conditioner;
and the control module is used for controlling the working state of the ultraviolet lamp bead based on the control strategy.
In a third aspect, an embodiment of the present invention provides an air conditioner, including an ultraviolet lamp bead and a controller, where the controller controls the ultraviolet lamp bead to operate by using the indoor sterilization method provided in the foregoing first aspect embodiment and/or in combination with some possible implementation manners of the foregoing first aspect embodiment.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a controller, implements an indoor sterilization method as provided in the foregoing first aspect embodiment and/or in combination with some possible implementations of the foregoing first aspect embodiment.
The beneficial effects of the embodiment of the invention include, for example:
according to the indoor sterilization method, the indoor sterilization device, the air conditioner and the storage medium, the concentration of microorganisms in indoor air is correlated with the irradiation intensity of the ultraviolet lamp beads, and the irradiation intensity of the ultraviolet lamp beads can dynamically change along with the change of the concentration of the microorganisms in the indoor air, so that the microorganisms in the indoor air can be effectively killed, the irradiation intensity of the ultraviolet lamp beads is dynamically controlled according to the change of the concentration of the microorganisms in the indoor air, and the sterilization mode of sterilization through the ultraviolet lamp beads is more reasonable.
Simultaneously, ultraviolet lamp pearl can not last work under certain fixed irradiation intensity in the course of the work, and this mode has practiced thrift ultraviolet lamp pearl's energy consumption, has improved ultraviolet lamp pearl's life-span.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of an indoor sterilization method provided by an embodiment of the invention;
fig. 3 is a second schematic flow chart of an indoor sterilization method according to an embodiment of the present invention;
fig. 4 shows a third schematic flow chart of an indoor sterilization method provided by the embodiment of the invention;
fig. 5 shows a fourth flowchart of an indoor sterilization method provided by the embodiment of the invention;
FIG. 6 is a fifth schematic flow chart illustrating an indoor sterilization method according to an embodiment of the present invention;
fig. 7 shows an exemplary structural block diagram of an indoor sterilization device provided by the embodiment of the invention.
Icon: 1000-air conditioner; 10-an air conditioner indoor unit; 101-indoor heat exchanger; 102-an indoor fan; 20-an air conditioner outdoor unit; 201-a compressor; 202-four-way valve; 203-outdoor heat exchanger; 204-outdoor fan; 205-an expansion valve; 30-a controller; 2000-indoor sterilization equipment; 2001-acquisition module; 2002-a parameter determination module; 2003-an ultraviolet lamp bead control strategy determination module; 2004-a control module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1, fig. 1 shows a schematic structural diagram of an air conditioner 1000 according to an embodiment of the present invention, where the air conditioner 1000 includes an indoor unit 10 and an outdoor unit 20. The indoor unit 10 and the outdoor unit 20 are connected by a pipe to transmit a refrigerant. The indoor air conditioning unit 10 includes an indoor heat exchanger 101 and an indoor fan 102. The outdoor unit 20 of the air conditioner includes a compressor 201, a four-way valve 202, an outdoor heat exchanger 203, an outdoor fan 204, and an expansion valve 205. The compressor 201, the outdoor heat exchanger 203, the expansion valve 205, and the indoor heat exchanger 101, which are connected in sequence, form a refrigerant loop in which a refrigerant circulates, and exchanges heat with air through the outdoor heat exchanger 203 and the indoor heat exchanger 101, respectively, to realize a cooling mode or a heating mode of the air conditioner 1000.
The compressor 201 is configured to compress a refrigerant such that a low-pressure refrigerant is compressed to form a high-pressure refrigerant.
The outdoor heat exchanger 203 exchanges heat between the outdoor air and the refrigerant passing through the outdoor heat exchanger 203. For example, the outdoor heat exchanger 203 operates as a condenser in a cooling mode of the air conditioner 1000, such that the refrigerant compressed by the compressor 201 is condensed by radiating heat to outdoor air through the outdoor heat exchanger 203. The outdoor heat exchanger 203 operates as an evaporator in the heating mode of the air conditioner 1000, so that the decompressed refrigerant is evaporated by the outdoor heat exchanger 203 absorbing heat of outdoor air.
The outdoor fan 204 is configured to suck outdoor air into the air-conditioning outdoor unit 20 through an outdoor air inlet of the air-conditioning outdoor unit 20, and send out the outdoor air after exchanging heat with the outdoor heat exchanger 203 through an outdoor air outlet of the air-conditioning outdoor unit 20. The outdoor fan 204 powers the flow of outdoor air.
The expansion valve 205 is connected between the outdoor heat exchanger 203 and the indoor heat exchanger 101, and adjusts the pressure of the refrigerant flowing through the outdoor heat exchanger 203 and the indoor heat exchanger 101 according to the opening degree of the expansion valve 205, thereby adjusting the flow rate of the refrigerant flowing between the outdoor heat exchanger 203 and the indoor heat exchanger 101. The flow rate and pressure of the refrigerant flowing between the outdoor heat exchanger 203 and the indoor heat exchanger 101 affect the heat exchange performance of the outdoor heat exchanger 203 and the indoor heat exchanger 101. The expansion valve 205 may be an electronic valve. The opening degree of the expansion valve 205 is adjustable to control the flow rate and pressure of the refrigerant flowing through the expansion valve 205.
The four-way valve 202 is connected in the refrigerant circuit, and the four-way valve 202 is used for switching the flow direction of the refrigerant in the refrigerant circuit to enable the air conditioner 1000 to execute a cooling mode or a heating mode.
The indoor heat exchanger 101 exchanges heat between indoor air and a refrigerant passing through the indoor heat exchanger 101. For example, the indoor heat exchanger 101 operates as an evaporator in the cooling mode of the air conditioner 1000, and the refrigerant radiated through the outdoor heat exchanger 203 is evaporated by the indoor heat exchanger 101 absorbing heat of indoor air. The indoor heat exchanger 101 operates as a condenser in a heating mode of the air conditioner 1000, so that the refrigerant absorbing heat through the outdoor heat exchanger 203 is condensed by radiating heat to indoor air through the indoor heat exchanger 101.
The indoor fan 102 is configured to suck indoor air into the indoor air-conditioning indoor unit 10 through an indoor air inlet of the indoor air-conditioning indoor unit 10, and send out the indoor air after heat exchange with the indoor heat exchanger 101 through an indoor air outlet of the indoor air-conditioning indoor unit 10. The indoor fan 102 powers the flow of indoor air.
The air conditioner 1000 further comprises an ultraviolet lamp bead (not shown in fig. 1) which is arranged in the indoor heat exchanger 101 of the air conditioner 1000 and used for killing microorganisms such as bacteria, viruses and the like which are bred in the long-time use process of the indoor heat exchanger 101.
The air conditioner 1000 further includes a controller 30. The controller 30 is used for controlling the operation of the ultraviolet lamp beads, and the controller 30 is also used for controlling the operation of the compressor 201, the opening degree of the expansion valve 205, the rotating speed of the outdoor fan 204 and the rotating speed of the indoor fan 102. The controller 30 is connected with the ultraviolet lamp beads, the compressor 201, the expansion valve 205, the outdoor fan 204 and the indoor fan 102 through data lines to transmit communication information.
The controller 30 includes a processor. The processor may include a Central Processing Unit (CPU), a microprocessor (microprocessor), an Application Specific Integrated Circuit (ASIC), and may be used to perform the corresponding operations described in the controller 30 when the processor executes a program stored in a non-transitory computer readable medium coupled to the controller 30. The non-transitory computer-readable storage medium may include a magnetic storage device (e.g., a hard disk, a floppy disk, or a magnetic tape), a smart card, or a flash memory device (e.g., an erasable programmable read-only memory (EPROM), a card, a stick, or a keyboard drive).
The present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a controller, can implement the indoor sterilization method provided by the present invention.
To ultraviolet irradiation's sterilization mode, the prior art can set up ultraviolet lamp pearl in the air conditioner usually to utilize the characteristic that excessive ultraviolet ray is harmful to the biology to kill the microorganism, this sterilization mode is usually through setting up its work of certain fixed irradiation intensity control to ultraviolet lamp pearl, if the microorganism concentration of room air is higher, and ultraviolet lamp pearl does not work with suitable irradiation intensity, then can not reach good bactericidal effect. If the microorganism concentration of indoor air is lower, but ultraviolet lamp pearl still works with higher irradiation intensity, and the energy consumption of ultraviolet lamp pearl is higher this moment, and greatly reduced ultraviolet lamp pearl's life.
Based on this, the embodiment of the invention provides an indoor sterilization method to solve the above problems.
Referring to fig. 2, fig. 2 is a schematic flow chart illustrating an indoor sterilization method according to an embodiment of the present invention, where an air conditioner 1000 is taken as an execution main body to exemplarily explain an indoor sterilization method according to an embodiment of the present invention.
As shown in fig. 2, the indoor sterilization method is applied to an air conditioner 1000, the air conditioner 1000 includes ultraviolet lamp beads, a plurality of microorganism concentration thresholds are pre-stored in the air conditioner 1000, and a plurality of irradiation intensities of the ultraviolet lamp beads, and the method includes the following steps:
and S110, responding to the instruction of starting sterilization, and acquiring the concentration of the microorganisms in the indoor air.
And S120, determining a concentration range interval to which the microorganism concentration belongs and corresponding target irradiation intensity based on each microorganism concentration threshold.
And S130, determining a control strategy of the ultraviolet lamp bead based on the concentration range interval, the target irradiation intensity and the indoor ventilation frequency of the air conditioner.
And S140, controlling the working state of the ultraviolet lamp bead based on the control strategy.
The step realizes the process of controlling the ultraviolet lamp beads based on the concentration range interval to which the concentration of microorganisms in indoor air belongs, the irradiation intensity of the ultraviolet lamp beads and the indoor ventilation times of the air conditioner.
Wherein, a plurality of irradiation intensity of ultraviolet lamp pearl can be confirmed by a plurality of microorganism concentration threshold values that prestore in the air conditioner, and this threshold value is obtained according to current room air microbial contamination and sanitary standard suggestion value.
For example, if the air conditioner has a microorganism concentration Ca for heavy air pollution in advance, the irradiation intensity of the ultraviolet lamp bead can be set to be the maximum irradiation intensity Lmax when the microorganism concentration is Ca, and the maximum value can be determined according to the microorganism concentration Ca, the indoor volume and the wind speed gear of the air conditioner.
For another example, if the air conditioner has a microorganism concentration C2 of light air pollution in advance, when the microorganism concentration in the indoor air is C2, the irradiation intensity of the ultraviolet lamp bead is L2, and the irradiation intensity can be determined according to the microorganism concentration C2, the indoor volume and the wind speed gear of the air conditioner.
Based on the preset parameters, when the user turns on the ultraviolet sterilization function, step S110 is executed to obtain the concentration of the microorganisms in the indoor air, and determine the concentration range to which the microorganisms belong based on the concentration of the microorganisms.
Illustratively, if the plurality of microorganism concentration thresholds pre-stored in the air conditioner are: the concentration Ca of microorganisms with severe air pollution, the concentration C2 of microorganisms with mild air pollution, the concentration C1 of microorganisms in ordinary air, the concentration C0 of microorganisms in clean air, and the obtained concentration of microorganisms in indoor air is C, the C value can be compared with each microorganism concentration threshold value to determine the concentration range section to which the C value belongs and the corresponding target irradiation intensity.
For example, if C1 ≦ C < C2, it may be determined that the microorganism concentration belongs to the microorganism concentration of light air pollution and the microorganism concentration range of ordinary air, and it is determined that the target irradiation intensity is irradiation intensity L2 at the concentration range. After determining the concentration range section to which the microorganism concentration belongs and the corresponding target irradiation intensity, the step S130 is continued.
In the embodiment of the present invention, the control strategy of step S130 may be set based on the determined concentration range interval, the target irradiation intensity, and the number of times of indoor ventilation of the air conditioner.
For example, if the microorganism concentration C of the indoor air obtained in step S120 belongs to C1 ≦ C < C2, the corresponding target irradiation intensity is L2, and the time taken for the number of times of indoor ventilation of the air conditioner to reach three times is T1, the secondary control strategy may be to control the ultraviolet lamp beads to irradiate the ultraviolet lamp beads at the irradiation intensity L2 for the time T1.
And after the corresponding control strategy is determined, continuing to execute step S140, and controlling the working state of the ultraviolet lamp bead based on the determined control strategy, that is, controlling the ultraviolet lamp bead to kill the microorganisms in the indoor air in a targeted manner at different irradiation intensities for different microorganism concentrations.
According to the indoor sterilization method provided by the embodiment of the invention, the concentration of microorganisms in indoor air is associated with the irradiation intensity of the ultraviolet lamp beads, and the irradiation intensity of the ultraviolet lamp beads can be dynamically changed along with the change of the concentration of the microorganisms in the indoor air, so that the microorganisms in the indoor air can be effectively killed, the irradiation intensity of the ultraviolet lamp beads is dynamically controlled according to the change of the concentration of the microorganisms in the indoor air, and the sterilization mode of sterilizing through the ultraviolet lamp beads is more reasonable.
Simultaneously, ultraviolet lamp pearl can not last work under certain fixed irradiation intensity in the course of the work, and this mode has practiced thrift ultraviolet lamp pearl's energy consumption, has improved ultraviolet lamp pearl's life-span.
Optionally, the microorganism concentration threshold comprises a first concentration threshold, a second concentration threshold, a third concentration threshold, and a fourth concentration threshold.
The first concentration threshold value represents the microorganism concentration of the heavy air pollution, the second concentration threshold value represents the microorganism concentration of the light air pollution, the third concentration threshold value represents the microorganism concentration of the common air, and the fourth concentration threshold value represents the microorganism concentration of the clean air.
The plurality of irradiation intensities comprises:
a first irradiance intensity determined based on the first concentration threshold, the indoor volume, and a windshield of the air conditioner.
A second irradiance level determined based on the second concentration threshold, the indoor volume, and a windshield of the air conditioner.
A third irradiance level determined based on the third concentration threshold, the indoor volume, and a windshield of the air conditioner.
It should be noted that the first concentration threshold, the second concentration threshold, the third concentration threshold and the fourth concentration threshold are obtained according to the existing recommended values of indoor air microbial contamination and sanitation standards.
For example, if the concentration of microorganisms in heavy air pollution is Ca, the concentration of microorganisms in light air pollution is C2, the concentration of microorganisms in ordinary air is C1, and the concentration of microorganisms in clean air is C0, ca may be 10000cfu/m 3 And C2 may be 5000cfu/m 3 C1 may be 2500cfu/m 3 C0 may be 100001500cfu/m 3 Wherein, the unit cfu (colony-forming unit)/m 3 The total number of bacterial colonies per cubic meter was characterized.
Specifically, the calculation process of the first irradiation intensity, the second irradiation intensity, and the third irradiation intensity is as follows:
the first irradiation intensity Lmax is actually the maximum irradiation intensity of the ultraviolet lamp beads and is the irradiation intensity of the ultraviolet lamp beads required when the indoor microorganism concentration is the microorganism concentration Ca of severe air pollution, the second irradiation intensity L2 is the irradiation intensity of the ultraviolet lamp beads required when the indoor microorganism concentration is the microorganism concentration C2 of mild air pollution, and the third irradiation intensity L3 is the irradiation intensity of the ultraviolet lamp beads required when the indoor microorganism concentration is the microorganism concentration C1 of common air pollution.
Therefore, the above Lmax, L2, and L3 can be calculated by the following formulas, respectively:
Lmax＝-InS(t) a /Kt，L2＝-InS(t) 2 /Kt，L3＝-InS(t) 3 /Kt
wherein, S (t) a 、S(t) 2 And S (t) 3 The number of bacteria surviving the ultraviolet irradiation with Lmax, L2, and L3 was determined by multiplying the volume of the indoor room by the corresponding microbial concentrations Ca, C2, and C1.
K is a decay constant, and the decay constants of different bacteria are different, so that specific numerical values can be obtained by measuring in advance.
And t is the time of the microorganisms under ultraviolet irradiation, when the specification of the indoor air conditioner is determined, the air flow cross section is determined, and the time t of the microorganisms under ultraviolet irradiation can be obtained according to different wind speed gears of the air conditioner.
Alternatively, in the case that the above parameters are preset in advance and are prestored in the air conditioner 1000, the user starts the ultraviolet sterilization function of the air conditioner 1000, and after the microbial concentration in the indoor air is obtained, the concentration range section to which the microbial concentration belongs and the corresponding target irradiation intensity are determined based on the prestored microbial concentration threshold values, which may be implemented by the following steps:
referring to fig. 3, fig. 3 shows a second schematic flow chart of an indoor sterilization method according to an embodiment of the present invention, wherein the step of determining the concentration range interval to which the microbial concentration belongs and the corresponding target irradiation intensity based on each microbial concentration threshold in the step S120 includes:
and S121, comparing the microorganism concentration with a first concentration threshold value, a second concentration threshold value and a third concentration threshold value respectively.
And S122, if the microorganism concentration is greater than or equal to the first concentration threshold, determining that the microorganism concentration belongs to a first concentration range interval, and taking the first irradiation intensity as the target irradiation intensity corresponding to the first concentration range interval.
And S123, if the microorganism concentration is greater than or equal to the second concentration threshold and smaller than the first concentration threshold, determining that the microorganism concentration belongs to a second concentration range interval, and taking the first irradiation intensity as a target irradiation intensity corresponding to the second concentration range interval.
And S124, if the microorganism concentration is greater than or equal to the third concentration threshold and smaller than the second concentration threshold, determining that the microorganism concentration belongs to a third concentration range interval, and taking the second irradiation intensity as the target irradiation intensity corresponding to the third concentration range interval.
And S125, if the microorganism concentration is smaller than the third concentration threshold, determining that the microorganism concentration belongs to a fourth concentration range interval, and taking the third irradiation intensity as the target irradiation intensity corresponding to the fourth concentration range interval.
The steps can realize the process of determining the concentration range interval to which the acquired microorganism concentration belongs and setting the corresponding target irradiation intensity aiming at the interval.
For example, based on the microbial concentration thresholds and the irradiation intensity of the ultraviolet lamp beads set in the foregoing, if the microbial concentration in the indoor air obtained in S110 is C =12000cfu/m 3 (at this time, the concentration of the microorganisms is greater than or equal to Ca, that is, the concentration of the microorganisms is greater than or equal to the first concentration threshold value at this time), it is determined that the concentration of the microorganisms in the indoor air at this time belongs to a first concentration range interval, and the maximum irradiation intensity Lmax (that is, the first irradiation intensity) of the ultraviolet lamp bead is determined as the target irradiation intensity corresponding to the concentration range interval.
For another example, based on the microbial concentration thresholds and the irradiation intensity of the ultraviolet lamp beads set in the foregoing, if the microbial concentration in the indoor air obtained in S110 is C =4000cfu/m 3 (at this time, the microorganism concentration is greater than or equal to C1 and less than C2, that is, the microorganism concentration is greater than or equal to the third concentration threshold and less than the second concentration threshold), it is determined that the microorganism concentration in the indoor air at this time belongs to a third concentration range interval, and it is determined that the irradiation intensity L2 (that is, the second irradiation intensity) of the ultraviolet lamp bead is used as the target irradiation intensity corresponding to the concentration range interval.
Optionally, after determining a concentration range interval to which the microbial concentration of the obtained indoor air belongs and the target irradiation intensity, the operation time of the ultraviolet lamp bead can be further determined according to the indoor ventilation frequency of the air conditioner. And appointing the control strategy of the ultraviolet lamp bead based on the parameters, and the specific process can be described as follows:
referring to fig. 4, fig. 4 shows a third flowchart of an indoor sterilization method provided in the embodiment of the present invention, and the step of determining the control strategy of the ultraviolet lamp bead based on the concentration range interval, the target irradiation intensity, and the indoor ventilation frequency of the air conditioner in step S130 includes:
s131, determining first running time, second running time, third running time and interval time of the ultraviolet lamp beads according to the indoor ventilation times of the air conditioner, wherein the first running time is less than the second running time, the second running time is less than the third running time, and the interval time is less than the first running time.
S132, judging the concentration range interval of the microorganism concentration.
And S133, under the condition that the microorganism concentration belongs to the first concentration range interval, controlling the ultraviolet lamp beads to work at the first irradiation intensity and the first running time, and then obtaining the microorganism concentration in the indoor air at intervals.
S134, under the condition that the microorganism concentration belongs to a second concentration range interval, controlling the ultraviolet lamp beads to work at the first irradiation intensity and the second operation time, and then obtaining the microorganism concentration in the indoor air at intervals.
And S135, under the condition that the microorganism concentration belongs to a third concentration range interval, controlling the ultraviolet lamp beads to work at a second irradiation intensity and a third running time, and then obtaining the microorganism concentration in the indoor air at intervals.
And S136, under the condition that the concentration of the microorganisms belongs to a fourth concentration range, controlling the ultraviolet lamp beads to work at a third irradiation intensity, and then obtaining the concentration of the microorganisms in the indoor air at intervals.
The step realizes the process of determining the control strategy of the ultraviolet lamp bead according to the concentration range interval to which the microorganisms in the indoor air belong, the preset target irradiation intensity and the indoor ventilation frequency of the air conditioner.
It should be noted that, in the process of actually controlling the ultraviolet lamp bead to work at different irradiation intensities, the process is implemented by outputting current values corresponding to the irradiation intensities, and the output current values corresponding to the irradiation intensities can be calculated by the following formula:
L＝B*0.00003125*I 2 +0.02751*I-0.0375
wherein, L represents the irradiation intensity of ultraviolet lamp pearl, and I represents output current, and B represents the efficiency of ultraviolet lamp pearl, and the efficiency of ultraviolet lamp pearl can be confirmed according to the specification of selected ultraviolet lamp pearl.
The following is exemplified in conjunction with the above steps:
based on the microbial concentration threshold values and the irradiation intensity of the ultraviolet lamp beads set in the foregoing, in the step S110, when the microbial concentration is C, the first operation time of the ultraviolet lamp beads determined according to the indoor ventilation frequency of the air conditioner is t1, the second operation time of the ultraviolet lamp beads is t2, the third operation time of the ultraviolet lamp beads is t3, and the interval time of the ultraviolet lamp beads is t 0:
if the obtained C is larger than or equal to Ca, the microorganism concentration is determined to belong to a first concentration range interval, at the moment, the ultraviolet lamp bead needs to be controlled to work for t1 time at the maximum irradiation intensity Lmax, and then the microorganism concentration in the indoor air is obtained once every t0 time (namely step S133).
In the process of obtaining the concentration of the microorganisms in the indoor air once every t0 time, if the obtained concentration of the microorganisms in the indoor air, C2, is not more than C and is less than Ca, it is determined that the concentration of the microorganisms belongs to the second concentration range, at this time, the ultraviolet lamp bead still needs to be controlled to work for t2 times at the maximum irradiation intensity Lmax, and the concentration of the microorganisms in the indoor air is continuously obtained once every t0 time (i.e., step S134).
In the process of obtaining the microbial concentration in the indoor air once every t0 time, if the obtained microbial concentration C1 in the indoor air is not more than C and less than C2, it is determined that the microbial concentration belongs to the third concentration range interval, at this time, the ultraviolet lamp bead needs to be controlled to work at the irradiation intensity L2 for t3 time, and the microbial concentration in the indoor air is continuously obtained once every t0 time (i.e., step S135).
In the process of obtaining the concentration of the microorganisms in the indoor air every t0, if the obtained concentration C of the microorganisms in the indoor air is less than C1, it is determined that the concentration of the microorganisms belongs to a fourth concentration range interval, at this time, the ultraviolet lamp beads need to be controlled to work at the irradiation intensity L3, and the concentration of the microorganisms in the indoor air is continuously obtained every t0 (i.e., step S136).
Optionally, the first operation time is a time taken for the number of times of air exchange in the air conditioner to reach three times, the second operation time is a time taken for the number of times of air exchange in the air conditioner to reach six times, the third operation time is a time taken for the number of times of air exchange in the air conditioner to reach twelve times, and the interval time is a time taken for the air conditioner to exchange air for each time of 0.1 time.
The interval time is related to the specific air circulation capacity of the air conditioner and may be changed according to the change of the air conditioner capacity, and when the interval time is determined, it is necessary to avoid that the interval time for detecting the microbial concentration by the air conditioner having a high ventilation frequency is too long, and the interval time for detecting the microbial concentration by the air conditioner having a low ventilation frequency is too short.
Optionally, in the working process of the ultraviolet lamp bead, if the concentration of the microorganisms in the indoor air obtained at intervals in the step S135 is lower than that of the microorganisms in the ordinary air, it indicates that the microorganisms in the indoor air have been killed to the level of the microorganisms contained in the normal air. Therefore, under the condition of considering the energy consumption of the ultraviolet lamp beads, whether the ultraviolet lamp beads can be turned off or not needs to be judged, so that the service life of the ultraviolet lamp beads is considered while the sterilization efficiency is ensured.
The above process may be specifically realized by the following steps:
referring to fig. 5, fig. 5 shows a fourth flowchart of the indoor sterilization method according to the embodiment of the present invention, and the step of determining the control strategy of the ultraviolet lamp bead based on the concentration range interval, the target irradiation intensity, and the indoor ventilation frequency of the air conditioner in step S130 further includes:
s1361, under the condition that the concentration of the microorganisms belongs to a fourth concentration range interval, calculating to obtain a reference microorganism concentration value according to a third concentration threshold value and a fourth concentration threshold value.
And S1362, calculating the tolerance of the acquired indoor air and the reference microorganism concentration value based on the acquired microorganism concentration in the indoor air and the reference microorganism concentration value.
The allowable value is judged.
And S1363, if the tolerance is less than or equal to 20%, controlling the ultraviolet lamp beads to stop working.
If the tolerance is larger than 20%, the process returns to step S136.
The steps realize the process of controlling the ultraviolet lamp beads to stop working after the concentration of the microorganisms in the indoor air reaches a certain lower limit value.
It should be noted that, because the concentration of the microorganisms in the indoor air is low, and the concentration of the microorganisms acquired at intervals in step S136 may fluctuate above and below the threshold, a tolerance is set to further determine whether to control the ultraviolet lamp beads to stop operating at this time.
Illustratively, based on the respective microorganism concentration threshold values set in the foregoing, if a reference microorganism concentration value is set to Ci, the reference microorganism concentration value may be calculated by the following formula:
ci = [ C0+ (C1-C0)/2 ], C0 is the microbial concentration of clean air, and C1 is the microbial concentration of normal air.
Therefore, if the obtained microorganism concentration C < C1 in the indoor air (i.e., the microorganism concentration belongs to the fourth concentration range interval), the tolerance between C and Ci needs to be calculated, and if the tolerance is less than 20%, it indicates that the microorganism concentration C is close to Ci, i.e., it is not necessary to continue to control the operation of the ultraviolet lamp bead. On this basis, control ultraviolet lamp pearl stop work to avoid ultraviolet lamp pearl to last the higher problem of work energy consumption.
Optionally, after the ultraviolet lamp bead is controlled to stop working, the concentration of microorganisms in the indoor air can be increased along with the continuous operation of the air conditioner. Therefore, the concentration of the microorganisms in the indoor air needs to be continuously obtained, and when the concentration of the microorganisms in the indoor air reaches a certain concentration range interval, the ultraviolet lamp beads are restarted to kill the microorganisms in the indoor air. The process can be specifically realized through the following steps:
referring to fig. 6, fig. 6 shows a fifth flowchart of the indoor sterilization method provided in the embodiment of the present invention, and after the step of controlling the ultraviolet lamp beads to stop working in step S1363, the method further includes:
and S137, acquiring the microbial concentration in the indoor air once every set time interval.
And judging the concentration range interval to which the microbial concentration belongs.
And S138, controlling the ultraviolet lamp beads to start working at a second irradiation intensity under the condition that the microorganism concentration belongs to a third concentration range interval, and obtaining the microorganism concentration in the indoor air once every other interval after working at a third running time.
The process returns to the step of determining the concentration range section to which the microorganism concentration belongs in the step S132.
The steps realize the process of restarting the ultraviolet lamp bead after the concentration of microorganisms in the indoor air is increased to a certain degree after the ultraviolet lamp bead stops working.
It should be noted that, after the ultraviolet lamp bead stops working, the concentration of the microorganisms in the indoor air is gradually increased in the working process of the air conditioner. Meanwhile, in the case where the microorganism concentration falls within the first concentration range interval and the second concentration range interval, it is indicated that the microorganism concentration at this time is much higher than the concentration at which the microorganism concentration falls within the third concentration range interval.
Therefore, when the microorganism concentration belongs to the first concentration range interval and the second concentration range interval, the ultraviolet lamp bead starts to work as early as when the microorganism concentration belongs to the third concentration range interval. And under the condition that the concentration of the microorganisms belongs to the fourth concentration range interval, the ultraviolet lamp beads cannot start to work.
The following is exemplified in conjunction with the above steps:
based on the microbial concentration threshold values and the irradiation intensity of the ultraviolet lamp beads, which are set in the foregoing, and according to the above-determined conditions that the first running time of the ultraviolet lamp beads is t1, the second running time is t2, the third running time is t3, and the interval time is t 0:
after the ultraviolet lamp beads stop working in step S1363, the microbial concentration in the indoor air is obtained once every one hour (i.e., step S137).
If the microorganism concentration C1 is not more than C and is less than C2 in the process of obtaining the microorganism concentration in the indoor air every one hour, it is determined that the microorganism concentration belongs to the third concentration range, at this time, the ultraviolet lamp bead needs to be controlled to start to work at the second irradiation intensity L2, and the microorganism concentration in the indoor air is obtained every t0 time after the ultraviolet lamp bead works at t3 time (i.e., step S138).
And returning to the step S132 in the process of acquiring the microbial concentration in the indoor air once every t0, dynamically adjusting the irradiation intensity and the operation time of the ultraviolet lamp beads according to the change of the microbial concentration in the indoor air, and stopping the operation of the ultraviolet lamp beads after the microbial concentration reaches a certain lower limit.
In the embodiment of the present invention, the method for sterilizing the air conditioner indoors based on the foregoing steps is described as follows:
based on the microbial concentration threshold values and the irradiation intensity of the ultraviolet lamp beads set in the foregoing, in the step S110, when the microbial concentration is C, the first operation time of the ultraviolet lamp beads determined according to the indoor ventilation frequency of the air conditioner is t1, the second operation time of the ultraviolet lamp beads is t2, the third operation time of the ultraviolet lamp beads is t3, and the interval time of the ultraviolet lamp beads is t 0:
if the obtained C is larger than or equal to Ca, the concentration of the microorganisms is determined to belong to a first concentration range interval, at the moment, the ultraviolet lamp beads need to be controlled to work for t1 time at the maximum irradiation intensity Lmax, and then the concentration of the microorganisms in the indoor air is obtained once every t0 time.
If the concentration C1 of the microorganisms in the indoor air continuously obtained at the moment is more than or equal to C and less than C2, the concentration of the microorganisms is determined to belong to a third concentration range interval, at the moment, the ultraviolet lamp beads need to be controlled to be reduced from the maximum irradiation intensity to the irradiation intensity L2 for t3 time, and the concentration of the microorganisms in the indoor air is continuously obtained every t0 time.
If the microorganism concentration C2 in the indoor air continuously obtained at the moment is less than or equal to C and less than Ca, the microorganism concentration is determined to belong to a second concentration range interval, at the moment, the ultraviolet lamp bead needs to be controlled to work for t2 time from the increase of the irradiation intensity L2 to the maximum irradiation intensity Lmax, and the microorganism concentration in the indoor air is continuously obtained once every t0 time.
If the concentration C of the microorganisms in the indoor air which is continuously obtained at the moment is less than C1, the concentration of the microorganisms is determined to belong to a fourth concentration range interval, at the moment, the ultraviolet lamp beads need to be controlled to work at the irradiation intensity L3, and the concentration of the microorganisms in the indoor air is continuously obtained every t0 time.
At this time, the tolerance between C and Ci needs to be calculated, and if the tolerance is less than 20%, the microorganism concentration C is close to Ci, that is, the ultraviolet lamp beads do not need to be controlled to work continuously. On the basis, the ultraviolet lamp beads are controlled to stop working.
And after the ultraviolet lamp beads stop working, acquiring the concentration of microorganisms in the indoor air once every one hour, in the process, if the concentration of the microorganisms C1 is acquired to be not less than C and less than C2, determining that the concentration of the microorganisms belongs to a third concentration range, controlling the ultraviolet lamp beads to start working at a second irradiation intensity L2, and acquiring the concentration of the microorganisms in the indoor air once every t0 time after the ultraviolet lamp beads work at t3 time.
And in the process that the ultraviolet lamp beads dynamically change the irradiation intensity according to the acquired microbial concentration in the indoor air, stopping the operation of the ultraviolet lamp beads until the acquired microbial concentration C in the indoor air is less than C1 and the tolerance between C and Ci is less than 20%.
Based on the indoor sterilization method, an indoor sterilization apparatus 2000 is provided below for executing the process steps in the above-described implementation manners and achieving the corresponding technical effects.
Specifically, referring to fig. 7, fig. 7 shows a block diagram of an exemplary structure of an indoor sterilization device 2000 according to an embodiment of the present invention, the device is applied to an air conditioner 1000, the air conditioner 1000 includes ultraviolet lamp beads, and a plurality of microorganism concentration thresholds and a plurality of irradiation intensities of the ultraviolet lamp beads are prestored in the air conditioner 1000.
The device comprises: the device comprises an acquisition module 2001, a parameter determination module 2002, an ultraviolet lamp bead control strategy determination module 2003 and a control module 2004.
The collecting module 2001 is used for responding to a sterilization starting instruction and obtaining the concentration of microorganisms in indoor air.
The parameter determining module 2002 is configured to determine, based on each of the microorganism concentration threshold values, a concentration range section to which the microorganism concentration belongs, and a corresponding target irradiation intensity.
The ultraviolet lamp bead control strategy determining module 2003 is configured to determine a control strategy of the ultraviolet lamp bead based on the concentration range interval, the target irradiation intensity, and the indoor ventilation frequency of the air conditioner.
The control module 2004 is configured to control the operating state of the ultraviolet lamp bead based on the control strategy.
The above modules may be stored in a non-transitory computer readable storage medium of the controller 30 shown in fig. 1 in the form of software or Firmware (Firmware) or be fixed in an Operating System (OS) of the air conditioner 1000, and may be executed by the controller 30 of the air conditioner 1000 in fig. 1.
Based on the same inventive concept, embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by the controller 30, implements the indoor sterilization method provided in the above embodiments.
The steps executed when the computer program runs are not described in detail herein, and reference may be made to the explanation of the indoor sterilization method.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and various media capable of storing program codes.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The indoor sterilization method is characterized by being applied to an air conditioner, wherein the air conditioner comprises ultraviolet lamp beads, a plurality of microorganism concentration threshold values and a plurality of irradiation intensities of the ultraviolet lamp beads are prestored in the air conditioner, and the method comprises the following steps:
responding to a sterilization starting instruction, and acquiring the concentration of microorganisms in indoor air;
determining a concentration range interval to which the microbial concentration belongs and corresponding target irradiation intensity based on each microbial concentration threshold;
determining a control strategy of the ultraviolet lamp bead based on the concentration range interval, the target irradiation intensity and the indoor ventilation frequency of the air conditioner;
and controlling the working state of the ultraviolet lamp bead based on the control strategy.
2. The indoor sterilization method according to claim 1, wherein the microorganism concentration threshold value includes a first concentration threshold value, a second concentration threshold value, a third concentration threshold value, and a fourth concentration threshold value;
the first concentration threshold value is characterized by the concentration of microorganisms in heavy air pollution, the second concentration threshold value is characterized by the concentration of microorganisms in light air pollution, the third concentration threshold value is characterized by the concentration of microorganisms in ordinary air, and the fourth concentration threshold value is characterized by the concentration of microorganisms in clean air;
the plurality of irradiation intensities comprises:
a first irradiance intensity determined from the first concentration threshold, an indoor volume, and a windshield of the air conditioner;
a second irradiance intensity determined from the second concentration threshold, an indoor volume, and a windshield of the air conditioner;
a third irradiance level determined from the third concentration threshold, an indoor volume, and a windshield of the air conditioner.
3. The indoor sterilization method according to claim 2, wherein the step of determining the concentration range interval to which the microorganism concentration belongs and the corresponding target irradiation intensity based on each microorganism concentration threshold value comprises:
comparing the microorganism concentration to the first, second and third concentration thresholds, respectively;
if the microorganism concentration is greater than or equal to the first concentration threshold, determining that the microorganism concentration belongs to a first concentration range interval, and taking the first irradiation intensity as a target irradiation intensity corresponding to the first concentration range interval;
if the microorganism concentration is greater than or equal to the second concentration threshold and smaller than the first concentration threshold, determining that the microorganism concentration belongs to a second concentration range interval, and taking the first irradiation intensity as a target irradiation intensity corresponding to the second concentration range interval;
if the microorganism concentration is greater than or equal to the third concentration threshold and smaller than the second concentration threshold, determining that the microorganism concentration belongs to a third concentration range interval, and taking the second irradiation intensity as a target irradiation intensity corresponding to the third concentration range interval;
and if the microorganism concentration is smaller than the third concentration threshold, determining that the microorganism concentration belongs to a fourth concentration range interval, and taking the third irradiation intensity as the target irradiation intensity corresponding to the fourth concentration range interval.
4. The indoor sterilization method as claimed in claim 3, wherein the step of determining the control strategy of the ultraviolet lamp bead based on the concentration range interval, the target irradiation intensity, and the indoor ventilation times of the air conditioner comprises:
determining a first running time, a second running time, a third running time and an interval time of the ultraviolet lamp bead according to the indoor ventilation times of the air conditioner, wherein the first running time is less than the second running time, the second running time is less than the third running time, and the interval time is less than the first running time;
judging the concentration range interval of the microorganism concentration;
under the condition that the microorganism concentration belongs to the first concentration range interval, controlling the ultraviolet lamp beads to work at the first irradiation intensity and the first running time, and then obtaining the microorganism concentration in the indoor air at intervals;
under the condition that the microorganism concentration belongs to the second concentration range interval, controlling the ultraviolet lamp beads to work at the first irradiation intensity and the second operation time, and then obtaining the microorganism concentration in the indoor air at intervals;
under the condition that the microorganism concentration belongs to the third concentration range interval, controlling the ultraviolet lamp bead to work at the second irradiation intensity and a third operation time, and then obtaining the microorganism concentration in the indoor air at intervals;
and under the condition that the concentration of the microorganisms belongs to the fourth concentration range, controlling the ultraviolet lamp beads to work at the third irradiation intensity, and then acquiring the concentration of the microorganisms in the indoor air at intervals.
5. The indoor sterilization method according to claim 4, wherein the first operation time is a time taken for the number of times of air exchange in the air conditioner to reach three times;
the second running time is the time for the indoor ventilation frequency of the air conditioner to reach six times;
the third operation time is the time for the indoor air exchange times of the air conditioner to reach twelve times;
the interval time is the time for the air conditioner to change air every 0.1 time.
6. The indoor sterilization method according to claim 4, wherein the step of determining the control strategy of the ultraviolet lamp bead based on the concentration range interval, the target irradiation intensity, and the indoor ventilation times of the air conditioner further comprises:
under the condition that the concentration of the microorganisms belongs to the fourth concentration range interval, calculating to obtain a reference microorganism concentration value according to the third concentration threshold value and the fourth concentration threshold value;
calculating the tolerance of the obtained indoor air and the reference microorganism concentration value based on the obtained indoor air and the reference microorganism concentration value;
and if the allowance is less than or equal to 20%, controlling the ultraviolet lamp bead to stop working.
7. The indoor sterilization method according to claim 6, wherein after the step of controlling the ultraviolet lamp beads to stop operating, the method further comprises:
acquiring the concentration of microorganisms in the indoor air once every set time interval;
under the condition that the concentration of the microorganisms belongs to the third concentration range, controlling the ultraviolet lamp beads to start working at the second irradiation intensity, and obtaining the concentration of the microorganisms in the indoor air once every other interval time after working at the third running time;
returning to the step of judging the concentration range section to which the microorganism concentration belongs.
8. The utility model provides an indoor sterilizing equipment, its characterized in that is applied to the air conditioner, the air conditioner includes ultraviolet lamp pearl, there are a plurality of microorganism concentration threshold values in advance in the air conditioner, and a plurality of irradiation intensity of ultraviolet lamp pearl, the device includes:
the acquisition module is used for responding to a sterilization starting instruction and acquiring the concentration of microorganisms in the indoor air;
the parameter determining module is used for determining a concentration range interval to which the microbial concentration belongs and corresponding target irradiation intensity based on each microbial concentration threshold;
the ultraviolet lamp bead control strategy determining module is used for determining a control strategy of the ultraviolet lamp bead based on the concentration range interval, the target irradiation intensity and the indoor ventilation times of the air conditioner;
and the control module is used for controlling the working state of the ultraviolet lamp bead based on the control strategy.
9. An air conditioner, characterized by comprising an ultraviolet lamp bead and a controller, wherein the controller controls the operation of the ultraviolet lamp bead by using the indoor sterilization method as claimed in any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a controller, implements the indoor sterilization method according to any one of claims 1 to 7.
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