CN111981652B - Control method and control device of air conditioner and air conditioner - Google Patents
Control method and control device of air conditioner and air conditioner Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 114
- 231100000719 pollutant Toxicity 0.000 claims abstract description 103
- 238000000746 purification Methods 0.000 claims abstract description 68
- 239000000356 contaminant Substances 0.000 claims abstract description 30
- 239000000809 air pollutant Substances 0.000 claims abstract description 11
- 231100001243 air pollutant Toxicity 0.000 claims abstract description 11
- 238000010408 sweeping Methods 0.000 claims description 56
- 238000001514 detection method Methods 0.000 claims description 33
- 230000007246 mechanism Effects 0.000 claims description 33
- 238000009434 installation Methods 0.000 claims description 15
- 238000004378 air conditioning Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000010186 staining Methods 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000036541 health Effects 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 8
- 238000005057 refrigeration Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 238000004887 air purification Methods 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 241000700605 Viruses Species 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005367 electrostatic precipitation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to the field of air conditioners, and particularly relates to a control method of an air conditioner, a controller and the air conditioner, wherein the control method comprises the following steps: starting the air conditioner, and obtaining the concentration C of the air pollutants in the target area after the air conditioner is started and operated for a certain time t0t0(ii) a The concentration of the contaminant Ct0Comparing with the pollutant standard concentration value, and determining the operation mode and operation parameters of the air conditioner according to the comparison result; and controlling the air conditioner to operate according to the determined operation mode and the determined operation parameters. The control method can accurately obtain the real situation of the concentration of the pollutants so as to solve the problems that the purification effect is poor and the health comfort of people cannot be ensured because the judgment of the concentration of the pollutants is inaccurate.
Description
Technical Field
The invention belongs to the field of air conditioners, and particularly relates to a control method and a control device of an air conditioner and the air conditioner.
Background
As consumers have become more and more concerned about health, the air purification function has gradually become a standard of air conditioners.
A clean air conditioner is generally equipped with a contaminant detection device and a corresponding contaminant purification device. The pollutant detection device is used for detecting the pollutant concentration and judging whether purification is needed or not and what degree the purification is needed. However, the pollutant detection device is arranged on the air conditioner, and the detected concentration range is limited to the surrounding environment of the air conditioner.
Because indoor pollutant distribution is not even, it is better when air conditioner surrounding air quality, but when other indoor regional pollutes comparatively seriously, the detection device of configuration on the air conditioner this moment can only think that indoor air quality is good, can not open purification performance and purify indoor air, so be very unfavorable to people's health.
Therefore, obtaining accurate indoor air quality information is very critical to purifying indoor air and improving human health.
Disclosure of Invention
The invention aims to provide a control method, a controller and an air conditioner which can accurately obtain the real situation of the concentration of pollutants so as to solve the problems that the purification effect is not good and the health and comfort of people cannot be guaranteed due to inaccurate judgment of the concentration of the pollutants.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a control method of an air conditioner, the control method comprising:
starting the air conditioner, and obtaining the concentration C of the air pollutants in the target area after the air conditioner is started and operated for a certain time t0t0；
The concentration of the contaminant Ct0Comparing with the pollutant standard concentration value, and determining the operation mode and operation parameters of the air conditioner according to the comparison result;
and controlling the air conditioner to operate according to the determined operation mode and the determined operation parameters.
Further optionally, the contaminant concentration Ct0The obtaining comprises the following steps:
in the process of starting up and running the air conditioner, the fan is controlled to run at a wind speed v and the wind sweeping mechanism runs at a frequency f for a certain time t0Then, the pollutant purification concentration C is obtainedt0；
Said certain time t0Is equivalent to the space of the installation environment of the air conditionerThe volume V, the wind speed V and the frequency f are related, i.e.: t is t0＝f(V、v、f)。
Further optionally, t0V/(V · f); wherein V is the space equivalent volume of the air conditioner installation environment, V is the fan wind speed, and f is the sweeping mechanism frequency.
4. The control method of an air conditioner according to claim 2, wherein the obtaining of the space equivalent volume V comprises:
s1, the air conditioner is started for the first time, and the fan is controlled to run at a first wind speed v1Operating, sweeping the wind mechanism at a first frequency f1Running until the pollutant reaches an equilibrium state, and obtaining the equilibrium concentration C of the pollutantnt；
S2, controlling the air conditioner to operate in a purification mode, and controlling the fan to rotate at a second wind speed v2Operating, sweeping the wind mechanism at a second frequency f2Operating, and after the operation is carried out for a set time T, acquiring the concentration C of the pollutantsT；
S3, calculating a space equivalent volume V, V ═ f ([ C) of the air conditioner installation area by combining the preset purification efficiency η in unit timent-CT]、v2、T、f2、η)。
As a further alternative it is possible that,
V＝(v2·T·f2·η)/[Cnt-CT](ii) a Wherein v is2A second wind speed of the fan, T is a set time, f2For the second frequency of the sweeping mechanism, eta is the preset cleaning efficiency, CntIs the equilibrium concentration of the contaminant, CTThe contaminant concentration after a set time T for operation.
Further optionally, step S1 further includes:
s11, acquiring the concentration of the air pollutants once every preset interval t;
s12, setting the staining concentration detection value of two adjacent staining concentration values as C(n-1)tAnd CntMixing C with(n-1)tAnd CntComparing the difference with a pollutant equilibrium concentration standard value C, and determining the magnitude of the pollutant equilibrium concentration according to the comparison result;
wherein n is more than or equal to 1,when n is 1, the detected contamination concentration is an initial concentration value C when the air conditioner is not started0。
Further optionally, when 0 ≦ C(n-1)t-CntWhen | < C, CntIs the equilibrium concentration of the contaminant;
when | C(n-1)t-CntWhen | is more than C, the pollutant concentration is continuously detected until | C is more than or equal to 0(n-1)t-Cnt|≤C。
Further optionally, the obtaining of the spatially equivalent volume V includes the following steps:
s1, obtaining the initial concentration C of the pollutant0；
S2, controlling the air conditioner to operate in a purification mode, and controlling the fan to rotate at a third wind speed v3Operating, and after the operation is carried out for a set time T, acquiring the concentration C of the pollutantsT；
S3, calculating a space equivalent volume V, V ═ f ([ C) of the air conditioner installation area by combining the preset purification efficiency η in unit time0-CT]、v3、T、η)。
Further optionally, V ═ V (V)3·T·η)/[C0-CT](ii) a Wherein v is3Is the third wind speed of the fan, T is the set time, eta is the preset purification efficiency, C0Is the initial concentration of the contaminant, CTThe contaminant concentration after a set time T for operation.
Further optionally, the contaminant concentration Ct0The obtaining step comprises:
controlling the fan to wind at a speed vmaxOperating, sweeping the wind mechanism at frequency fmaxRunning for a certain time t0Then, the pollutant purification concentration C is obtainedt0；
Said certain time t0Is determined according to the matching number of the air conditioners, and/or the cooling capacity, and/or the specification of the air conditioners, and/or the recommended use area, and is written into an air conditioner control program in advance.
Further optionally, the wind sweeping mechanism comprises an upper wind shield, a lower wind shield, a left wind sweeping blade and a right wind sweeping blade;
in the running process of the wind sweeping mechanism, the upper wind shield and the lower wind shield are controlled to swing in a reciprocating way or in a directional way; and/or controlling the left and right wind sweeping blades to swing in a reciprocating mode or a directional mode.
Further optionally, the concentration of contaminant Ct0Comparing with the pollutant standard concentration value, and determining the operation mode of the air conditioner according to the comparison result, wherein the operation mode comprises the following steps:
concentration of contaminant Ct0And a first pollutant standard concentration value C1And (3) comparison:
when C is presentt0<C1When the air conditioner works, the air conditioner is controlled to run in an air conditioning mode;
when C is presentt0And when the temperature is more than or equal to C1, controlling the air conditioner to operate in a purification mode.
Further alternatively, when Ct0At the time of not less than C1, the concentration of the pollutant C is also adjustedt0And a second pollutant standard concentration value C2And (3) comparison:
when C is presentt0<C2Meanwhile, controlling the air conditioner to simultaneously operate an air conditioning mode and a purification mode;
when C is presentt0≥C2When the air conditioner is started, the air conditioner is controlled to firstly run the purification mode for a certain time and then run the air conditioner mode;
wherein: c2＞C1。
Further optionally, the concentration of contaminant Ct0Comparing with the pollutant standard concentration value, and determining the operating parameters of the air conditioner according to the comparison result, wherein the steps comprise:
dividing different pollutant concentration ranges into different pollution grades, wherein the different pollution grades correspond to different air conditioner operation parameters;
according to the obtained pollutant concentration Ct0To determine the pollution level at which the current pollutant concentration is located;
and determining the operation parameters of the air conditioner according to the determined pollution level.
The invention also proposes a control device comprising:
the detection module is used for detecting the concentration of air pollutants in a target area;
the control module is used for controlling the operation of a fan and a wind sweeping mechanism of the air conditioner;
the analysis module is used for judging whether the air pollutant concentration reaches a preset equilibrium concentration or not, calculating the equivalent volume of the indoor space according to the equilibrium concentration and the pollutant concentration change condition in the purification mode, and calculating the pollutant concentration detection time according to the equivalent volume of the indoor space obtained through calculation and the combination of the wind speed of the internal fan and the frequency of the wind sweeping mechanism;
and the processing module is used for comparing the air pollutant concentration detected by the detection module in the pollutant concentration detection time with the pollutant standard concentration value to determine the operation mode and the operation parameters of the air conditioner and controlling the air conditioner to operate according to the determined operation mode and the determined operation parameters.
The invention also provides an air conditioner.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1) make indoor pollutant distribution more even through the air conditioner to combine pollutant balance time to detect and confirm more accurate pollutant concentration, and then confirm whether need purify indoor air, what kind of purification mode of operation, how to adjust air conditioner optimum operating parameter etc.. Therefore, misjudgment caused by the fact that indoor real air quality information cannot be obtained only by detecting the concentration of pollutants around the air conditioner is avoided, and the effect of real health cannot be achieved.
2) The space volume of the specific installation environment of the air conditioner can be judged and obtained according to the attenuation speed of the pollutant concentration in the purification mode, and the time for the pollutant concentration to reach uniform distribution can be determined according to the data, so that the real indoor pollution condition can be determined at the fastest.
3) The relevant operation parameters of the air conditioner can be adjusted and optimized by combining the spatial volume data and the real indoor pollution situation, so that the air conditioner is in the best state in the aspects of health, comfort, energy conservation, noise and the like during operation, and the health and comfort of people are improved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a control flow chart of embodiment 1 of the present invention;
fig. 2 is a flowchart of an equivalent spatial volume calculation method in embodiment 1 of the present invention;
FIG. 3 is a flow chart of another equivalent spatial volume calculation method according to an embodiment of the present invention;
FIG. 4 is a control flowchart of embodiment 2 of the present invention;
FIG. 5 is a block diagram of a control apparatus according to embodiment 3 of the present invention;
fig. 6 is a schematic structural view of an air conditioner according to embodiment 4 of the present invention;
fig. 7 is a longitudinal sectional view of an air conditioner according to embodiment 4 of the present invention.
Wherein, 1-a wind sweeping blade; 2-a wind deflector; 3, air outlet; 4-air inlet; 5-an air quality detection unit; 6-inner fan.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to solve the problem that indoor air quality information detected by an existing air conditioner is inaccurate, the present embodiment provides a control method for an air conditioner, where the control method includes:
starting the air conditioner, and obtaining the pollutant concentration C after the air conditioner is started and operates for a certain time t0t0；
Concentration of contaminant Ct0Comparing with the pollutant standard concentration value, and determining the operation mode and operation parameters of the air conditioner according to the comparison result;
and controlling the air conditioner to operate according to the determined operation mode and the determined operation parameters.
The control method of the air conditioner of the embodiment can adjust and optimize relevant operation parameters of the air conditioner by combining the spatial volume data and the real indoor pollution situation, so that the air conditioner is in the best state in aspects of health, comfort, energy conservation, noise and the like during operation, and the health and comfort of people are improved.
Example 1
The present embodiment provides a method for controlling air conditioner purification, as shown in the flowchart of fig. 1, where an air conditioner indoor unit has an air inlet, an indoor fan, and an air outlet; the air outlet is provided with an air sweeping mechanism; and an air quality detection unit is arranged in the air channel communicated with the air inlet and the air outlet. The control method comprises the following steps:
1. starting the air conditioner;
2. and controlling the indoor fan of the air conditioner to be started and run at the wind speed v.
3. And controlling the air conditioner air sweeping mechanism to operate and swing back and forth at the frequency f. The wind sweeping mechanism comprises an upper wind sweeping air deflector, a lower wind sweeping air deflector, a left wind sweeping blade and a right wind sweeping blade; the swing mode comprises continuous reciprocating swing and directional reciprocating swing.
The continuous reciprocating swing represents that the air deflector moves from the lowest position to the highest position and then moves from the highest position to the lowest position without pause in the middle; the wind sweeping blades are the same as the wind sweeping blades; the directional reciprocating swing represents that the air deflector moves from the lowest position to the highest position, then moves from the highest position to the lowest position, and stays in a certain position for a certain time in the middle; the same principle of the wind sweeping blade is shown.
4. The operation state is maintained for a certain time t0, and the air quality detection unit is controlled to detect the pollutant purification concentration Ct0. The pollutants comprise particulate pollutants such as PM2.5 and PM0.3, gaseous pollutants such as formaldehyde, VOC and peculiar smell, harmful microorganisms such as bacteria and viruses, and the like.
The certain time t0 is related to the equivalent space volume V, the wind speed V and the frequency f of the air conditioner installation environment, namely: t0 ═ f (V, f). Preferably, t is f (V, f) is V/(V · f).
5. Judging whether purification is needed according to the concentration condition of the pollutants:
6. and judging the operation mode and the operation parameters of the air conditioner according to the pollutant concentration condition, and controlling the air conditioner to operate according to the corresponding mode and parameters.
Further, a first embodiment of obtaining the equivalent space volume V of the air conditioner installation area is as follows: writing the size of the equivalent space volume into a corresponding control program during the production of the air conditioner;
preferably, the space volume is related to parameters such as the matching number of air conditioners, or the cooling capacity, or the specification of the air conditioners, or the recommended use area.
The parameters comprise 1 small (2300W, 23 machine, area < 10 m)2) 1, 1 (2600W, 26 machines)Area of 10-15m2) 1.5 small (3200W, 32 machines, area 14-18 m)2) 1.5 pieces (3500W, 35 machine, 16-20m area)2) 2 pieces (5000W, 50 machine, 20-30m area)2) 3 pieces (7200W, 72 machine, area 30-40 m)2) Etc.;
the second embodiment is as follows: the size of the equivalent space volume can be recorded by an installer according to specific installation conditions when the air conditioner is installed.
In a third specific embodiment, the size of the equivalent space volume can be automatically determined by the air conditioner through detection, and the method includes two detection methods, wherein one detection method is as shown in a flow chart of fig. 2, and the specific steps are as follows:
s1, the air conditioner is started to operate for the first time, the indoor fan is controlled to operate at a first wind speed v1, and the wind sweeping mechanism operates at a first frequency f1Running until the indoor pollutants reach an equilibrium state, and obtaining the equilibrium concentration C of the indoor pollutantsnt。
S2, controlling the air conditioner to operate in a purification mode, and controlling the indoor fan to rotate at a second wind speed v2Operating, sweeping the wind mechanism at a second frequency f2Operating, and after the operation is carried out for a set time T, acquiring the concentration C of the pollutantsT；
S3, calculating the equivalent space volume V of the installation area of the air conditioner by combining the preset purification efficiency eta in unit time, wherein the V is the equivalent space volume V of the installation area of the air conditioner, and the V is the equivalent space volume V of the installation area of the air conditioner and the concentration change condition [ C [ [ C ]nt-CT]Wind speed v2Time T, frequency f2And the purification efficiency eta, V ═ f ([ C ]nt-CT]、v2、T、f2η), preferably, V ═ f ([ C)nt-CT]、v2、T、f2、η)＝(v2·T·f2·η)/[Cnt-CT]。
The equivalent volume only represents the size of a target area required to be purified by the air conditioner, is used for guiding and optimizing the control of relevant parameters of the air conditioner, and does not represent the size of a real indoor space. The purification efficiency eta is the initial purification efficiency of the air conditioner during the first operation, and is obtained by inputting in advance during the production of the air conditioner or automatically detecting and calculating during the first power-on operation of the air conditioner. The air conditioner can change the purification efficiency according to the purification situation of the indoor pollutants when in the subsequent operation purification mode.
Further, in steps S1 and S2, the wind sweeping mechanism includes an upper wind sweeping wind deflector, a lower wind sweeping wind deflector, and a left wind sweeping blade and a right wind sweeping blade; the swing mode comprises continuous reciprocating swing and directional reciprocating swing.
The continuous reciprocating swing represents that the air deflector moves from the lowest position to the highest position and then moves from the highest position to the lowest position without pause in the middle; the wind sweeping blades are the same as the wind sweeping blades; the directional reciprocating swing represents that the air deflector moves from the lowest position to the highest position, then moves from the highest position to the lowest position, and stays in a certain position for a certain time in the middle; the same principle of the wind sweeping blade is shown.
Further, the equilibrium concentration detection is performed according to the following steps:
s11, acquiring the concentration of the pollutants once every preset interval t;
s12, setting the indoor pollution concentration detection value of two adjacent times as C(n-1)tAnd CntMixing C with(n-1)tAnd CntThe difference value is compared with a pollutant equilibrium concentration standard value C, and the magnitude of the pollutant equilibrium concentration is determined according to the comparison result.
The method comprises the following specific steps:
when the absolute value of C is more than or equal to 0(n-1)t-CntWhen | ≦ C, it indicates that the pollutant concentration has reached the equilibrium state, the air flow of the air conditioner has little influence on the pollutant distribution, and the concentration C at this timentCan be used as the indoor pollutant equilibrium concentration. Wherein C is a standard value for determining the concentration of the pollutant, preferably 0<C1≤0.035mg/m3。
When | C(n-1)t-CntWhen | is greater than C, it indicates that the indoor pollutants are still changing continuously due to the influence of the airflow, a large difference exists between the concentrations detected twice, and the pollutant concentration has not reached an equilibrium state. At this time, the above steps S11-S12 are repeated, and the contaminant concentration difference determination is performed again. Wherein, CntThe resulting contaminant concentration was tested for the nth replicate. Wherein n is more than or equal to 1, and when n is 1, the detected indoor pollution concentration C(n-1)tFor air-conditioningInitial concentration value C in chamber when not started0。
Further, step S2 includes:
(1) controlling the opening of the fan in the air conditioner and according to the second wind speed v2The purge mode is run. The purification mode includes, but is not limited to, a purification mode realized by one or more of high efficiency filter (HEPA), ion purification, ultraviolet purification (UV), electrostatic precipitation, ozone, photocatalyst, IFD, etc.
(2) Controlling the air conditioner to sweep the air mechanism to operate according to a second frequency f2And oscillating to and fro. The wind sweeping mechanism comprises an upper wind sweeping air deflector, a lower wind sweeping air deflector, a left wind sweeping blade and a right wind sweeping blade; the swing mode comprises continuous reciprocating swing and directional reciprocating swing.
(3) Maintaining the running state for a set time T, and controlling the air quality detection unit to detect the pollutant purification concentration C againT. The set time T is the running time preset by the system, such as running for 5 min.
One of the detection methods is shown in a flow chart shown in fig. 3, and the specific steps are as follows:
s1, the air conditioner operates in a purification mode for the first time, and the air quality detection unit is controlled to detect the initial concentration C of the indoor pollutants0. The pollutants comprise particulate pollutants such as PM2.5 and PM0.3, gaseous pollutants such as formaldehyde, VOC and peculiar smell, harmful microorganisms such as bacteria and viruses, and the like.
S2, controlling the air conditioner internal fan to be started and according to a third wind speed v3The purge mode is run. The purification mode includes, but is not limited to, a purification mode realized by one or more of high efficiency filter (HEPA), ion purification, ultraviolet purification (UV), electrostatic precipitation, ozone, photocatalyst, IFD, etc. Maintaining the running state for a set time T, and controlling the air quality detection unit to detect the pollutant concentration C againT。
And S3, determining the equivalent space volume V according to the concentration change condition. The V determination method comprises the following steps:
(1) and acquiring the purification efficiency eta of the purification mode in unit time.
(2) And (3) calculating and determining the equivalent space volume V according to an empirical formula: [ C ]0-CT]·V＝(v3·T·η)。
The equivalent volume only represents the size of a target area required to be purified by the air conditioner, is used for guiding and optimizing the control of relevant parameters of the air conditioner, and does not represent the size of a real indoor space.
Further optionally, said treating a contaminant concentration Ct0And comparing the standard concentration value of the pollutant, and determining the operation mode of the air conditioner according to the comparison result, wherein the operation mode of the air conditioner comprises a traditional air conditioning mode for realizing the functions of refrigeration, heating and the like and a purification mode for realizing the functions of air purification and the like. The method comprises the following steps:
concentration of contaminant Ct0And a first pollutant standard concentration value C1And (3) comparison:
when C is presentt0<C1When the air conditioner works, the indoor air is clean, air purification is not needed, and the air conditioner mode is directly operated;
when C is presentt0When the air temperature is more than or equal to C1, the indoor air is dirty, and the cleaning mode needs to be operated. Wherein, C1The standard value is preferably 0 for determining the concentration of the contaminant<C1≤0.035mg/m3。
Further optionally, when Ct0At the time of not less than C1, the concentration of the pollutant C is also adjustedt0And a second pollutant standard concentration value C2And comparing, and judging the operation mode of the air conditioner according to the pollutant concentration condition:
when C is presentt0<C2When the indoor environment is polluted, the indoor environment is indicated, but the pollution condition is general, the air conditioner can synchronously execute refrigeration or heating while executing purification, namely an air conditioning mode and a purification mode, so that the unification of health and comfort is ensured;
when C is presentt0≥C2When the air conditioner is started, the air conditioner is controlled to firstly run the purification mode for a certain time and then run the air conditioner mode; it is indicated that there is pollution in the room, and the pollution is more serious, and it is necessary to firstly operate the purification mode to purify the indoor air, and then perform the refrigeration or heating, i.e. the purification mode.
Wherein: c2＞C1Preferably 0<C2≤0.075mg/m3
Further optionally, said treating a contaminant concentration Ct0Comparing with the pollutant standard concentration value, and determining the operation parameters of the air conditioner according to the comparison result, including
Dividing different pollutant concentration ranges into different pollution grades, wherein the different pollution grades correspond to different air conditioner operation parameters;
according to the obtained pollutant concentration Ct0To determine the pollution level at which the current pollutant concentration is located;
and determining the operation parameters of the air conditioner according to the determined pollution level.
Specifically, the operation parameters include the ratio of the purification mode to the air-conditioning mode, and the operation parameters and purification parameters of the air conditioner corresponding to different pollutant concentration levels in each mode. The air conditioner operation parameters include, but are not limited to, air volume, air speed, air deflector motion mode, frequency, compressor operation frequency, environment temperature and humidity, and the like. The purification parameters include, but are not limited to, ion output, UV light intensity, HEPA mesh air intake, IFD field strength, etc. In particular, when C1＝0.035mg/m3，C2＝0.075mg/m3，C3When the air conditioner is purified by a HEPA net, the air conditioner comprises the following components in percentage by weight of 0.050mg/m 3:
when C is presentt<C1When the indoor cleanliness is 1 grade, the air conditioner operates to refrigerate and heat, and the air inlet is normally opened to ensure the air quantity;
when C is present1<Ct<C3When the indoor cleanliness is 2 grades, the air conditioner operates a refrigerating and heating + purification mode, the refrigerating and heating are preferential, and the air inlet is opened 2/3, so that part of pollutants are purified while the refrigerating and heating are ensured;
when C is present3<Ct<C2During the time, indoor cleanliness factor is 3 grades, and the air conditioner operation purifies + refrigeration heating mode, and the purification mode is preferred, and 1/3 is opened to the air intake, when guaranteeing to purify, the air conditioner can realize the intake of refrigeration heating.
When C is present2<CtIn time, the room is cleanThe degree is 4 grades, and the air conditioner operation purification mode, the air intake is closed, guarantees HEPA net normal work.
Example 2
The present embodiment further provides a control method of an air conditioner, as shown in the flowchart of fig. 4, including the following steps:
1. the air conditioner is started to operate.
2. Controlling the air conditioner internal unit to be started according to the wind speed vmaxAnd (5) operating.
3. Controlling the air conditioner to sweep the air mechanism and operate according to the frequency fmaxAnd oscillating to and fro.
4. The operation state is maintained for a certain time t0, and the air quality detection unit is controlled to detect the pollutant purification concentration Ct0；
And the running time t is determined according to parameters such as the matching number of the air conditioners, the refrigerating capacity, the specification of the air conditioners, the recommended use area and the like, and is written into an air conditioner control program in advance.
Furthermore, when the air conditioner is small 1 piece (2300W, 23 units, area < 10 m)2) When t is t 1; 1 piece (2600W, 26 machine, area 10-15 m)2) When t is t 2; 1.5 pieces (3200W, 32 machines, area 14-18 m)2) When t is t 3; 1.5 pieces (3500W, 35 machine, 16-20m area)2) When t is t 4; 2 pieces (5000W, 50 machine, 20-30m area)2) When t is t 5; 3 pieces (7200W, 72 machine, area 30-40 m)2) When t is t 6.
5. Judging the operation mode and corresponding parameters of the air conditioner according to the concentration condition of the pollutants:
6. and controlling the air conditioner to operate according to the corresponding mode and the parameters.
Example 3
The present embodiment discloses an air conditioner control device implementing the control methods of embodiments 1 and 2, as shown in fig. 5. The air conditioner indoor unit is provided with an air inlet, an indoor fan and an air outlet; the air outlet is provided with an air sweeping mechanism; and an air quality detection unit is arranged in the air channel communicated with the air inlet and the air outlet. The control device includes:
the detection module is used for detecting the concentration of pollutants;
the control module is used for controlling the indoor fan and the air sweeping mechanism of the air conditioner to operate;
the analysis module is used for judging whether the equilibrium concentration is reached according to the concentration of the pollutants, calculating the size of the equivalent space volume according to the equilibrium concentration and the change condition of the concentration of the pollutants in the purification mode, and calculating the detection time of the concentration of the pollutants according to the calculated equivalent space volume and the combination of the wind speed of the internal fan and the frequency of the wind sweeping mechanism;
and the processing module is used for comparing the pollutant concentration detected by the detection module in the pollutant concentration detection time with the pollutant standard concentration value to determine the operation mode and the operation parameters of the air conditioner and controlling the air conditioner to operate according to the corresponding operation mode and the corresponding operation parameters.
Example 4
This embodiment provides an air conditioner of the control device of embodiment 3, as shown in fig. 6 and 7. The indoor unit of the air conditioner is provided with an air inlet 4, an indoor fan 6 and an air outlet 3, and the air outlet 3 is provided with a wind sweeping mechanism; the wind sweeping mechanism comprises wind sweeping blades 1 and a wind deflector 2. And an air quality detection unit 5 is arranged in an air channel communicated with the air inlet 4 and the air outlet 3.
The air conditioner of this embodiment can stir the indoor air current through fan and the cooperation of sweeping wind mechanism when the operation and make indoor pollutant distribution more even to combine pollutant balance time to detect and confirm more accurate pollutant concentration, and then confirm whether need purify indoor air, what kind of purification mode of operation, how to adjust air conditioner best operating parameter etc.. Therefore, misjudgment caused by the fact that indoor real air quality information cannot be obtained only by detecting the concentration of pollutants around the air conditioner is avoided, and the effect of real health cannot be achieved.
In addition, the air conditioner can judge the space volume of the specific installation environment of the air conditioner according to the attenuation speed of the pollutant concentration in the purification mode, and the time for the pollutant concentration to reach uniform distribution can be determined according to the data, so that the real indoor pollution condition can be determined at the fastest speed.
Finally, relevant operation parameters of the air conditioner can be adjusted and optimized by combining the spatial volume data and the real indoor pollution situation, so that the air conditioner is in the best state in the aspects of health, comfort, energy conservation, noise and the like, and the health and comfort of people are improved.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (13)
1. A control method of an air conditioner, characterized in that the control method comprises:
starting the air conditioner, and obtaining the concentration C of the air pollutants in the target area after the air conditioner is started and operated for a certain time t0t0；
The concentration of the contaminant Ct0Comparing with the pollutant standard concentration value, and determining the operation mode and operation parameters of the air conditioner according to the comparison result;
controlling the air conditioner to operate according to the determined operation mode and the determined operation parameters;
the concentration of the contaminant Ct0The obtaining comprises the following steps:
in the process of starting up and running the air conditioner, the fan is controlled to run at a wind speed v and the wind sweeping mechanism runs at a frequency f for a certain time t0Then, the pollutant purification concentration C is obtainedt0；
Said certain time t0Is related to the space equivalent volume V, the wind speed V and the frequency f of the installation environment of the air conditioner, namely: t is t0＝V/(v·f)。
2. The control method of an air conditioner according to claim 1, wherein the obtaining of the space equivalent volume V comprises:
s1, when the air conditioner is started for the first time, controlling the fan to operate at a first wind speed v1Operating, sweeping the wind mechanism at a first frequency f1Running until the pollutant reaches an equilibrium state, and obtaining the equilibrium concentration C of the pollutantnt；
S2, controlling the air conditioner to operate in a purification mode, and controlling the fan to rotate at a second wind speed v2Operating, sweeping the wind mechanism at a second frequency f2Operating, and after the operation is carried out for a set time T, acquiring the concentration C of the pollutantsT；
S3, calculating a space equivalent volume V, V ═ f ([ C) of the air conditioner installation area by combining the preset purification efficiency η in unit timent-CT]、v2、T、f2、η)。
3. The control method of an air conditioner according to claim 2,
V＝(v2·T·f2·η)/[Cnt-CT](ii) a Wherein v is2A second wind speed of the fan, T is a set time, f2For the second frequency of the sweeping mechanism, eta is the preset cleaning efficiency, CntIs the equilibrium concentration of the contaminant, CTThe contaminant concentration after a set time T for operation.
4. The control method of an air conditioner according to claim 3, wherein the step S1 further includes:
s11, acquiring the concentration of the air pollutants once every preset interval t;
s12, setting the staining concentration detection value of two adjacent staining concentration values as C(n-1)tAnd CntMixing C with(n-1)tAnd CntComparing the difference with a pollutant equilibrium concentration standard value C, and determining the magnitude of the pollutant equilibrium concentration according to the comparison result;
wherein n is more than or equal to 1, and when n is 1, the detected pollution concentration is an initial concentration value C when the air conditioner is not started0。
5. The control method of an air conditioner according to claim 4, wherein when the air conditioner is operated, the control method is executed
0≤|C(n-1)t-CntWhen | < C, CntIs the equilibrium concentration of the contaminant;
when | C(n-1)t-CntWhen | is more than C, the pollutant concentration is continuously detected until | C is more than or equal to 0(n-1)t-Cnt|≤C。
6. The control method of an air conditioner according to claim 1, wherein said obtaining of the space equivalent volume V comprises the steps of:
s1, obtaining the initial concentration C of the pollutant0；
S2, controlling the air conditioner to operate in a purification mode, and controlling the fan to rotate at a third wind speed v3Operating, and after the operation is carried out for a set time T, acquiring the concentration C of the pollutantsT；
S3, calculating a space equivalent volume V, V ═ f ([ C) of the air conditioner installation area by combining the preset purification efficiency η in unit time0-CT]、v3、T、η)。
7. The control method of an air conditioner according to claim 6, wherein V ═ V (V ═ V-3·T·η)/[C0-CT](ii) a Wherein v is3Is the third wind speed of the fan, T is the set time, eta is the preset purification efficiency, C0Is the initial concentration of the contaminant, CTThe contaminant concentration after a set time T for operation.
8. The control method of an air conditioner according to any one of claims 1 to 7, wherein the wind sweeping mechanism includes upper and lower wind deflectors and left and right wind sweeping blades;
in the running process of the wind sweeping mechanism, the upper wind shield and the lower wind shield are controlled to swing in a reciprocating way or in a directional way; and/or controlling the left and right wind sweeping blades to swing in a reciprocating mode or a directional mode.
9. Air conditioner according to any of claims 1-7Characterized in that the concentration of the contaminant C is determinedt0Comparing with the pollutant standard concentration value, and determining the operation mode of the air conditioner according to the comparison result, wherein the operation mode comprises the following steps:
concentration of contaminant Ct0And a first pollutant standard concentration value C1And (3) comparison: when in use
Ct0<C1When the air conditioner works, the air conditioner is controlled to run in an air conditioning mode;
when C is presentt0And when the temperature is more than or equal to C1, controlling the air conditioner to operate in a purification mode.
10. The control method of an air conditioner according to claim 9, wherein when C is reachedt0At the time of not less than C1, the concentration of the pollutant C is also adjustedt0And a second pollutant standard concentration value C2And (3) comparison: when in use
Ct0<C2Meanwhile, controlling the air conditioner to simultaneously operate an air conditioning mode and a purification mode;
when C is presentt0≥C2When the air conditioner is started, the air conditioner is controlled to firstly run the purification mode for a certain time and then run the air conditioner mode;
wherein: c2＞C1。
11. The control method of an air conditioner according to claim 10, wherein said pollutant concentration C is set tot0Comparing with the pollutant standard concentration value, and determining the operating parameters of the air conditioner according to the comparison result, wherein the steps comprise:
dividing different pollutant concentration ranges into different pollution grades, wherein the different pollution grades correspond to different air conditioner operation parameters;
according to the obtained pollutant concentration Ct0To determine the pollution level at which the current pollutant concentration is located;
and determining the operation parameters of the air conditioner according to the determined pollution level.
12. A control apparatus that implements the control method according to any one of claims 1 to 11, comprising:
the detection module is used for detecting the concentration of air pollutants in a target area; control
The system module is used for controlling the operation of a fan and a wind sweeping mechanism of the air conditioner;
the analysis module is used for judging whether the air pollutant concentration reaches a preset equilibrium concentration or not, calculating the equivalent volume of the indoor space according to the equilibrium concentration and the pollutant concentration change condition in the purification mode, and calculating the pollutant concentration detection time according to the equivalent volume of the indoor space obtained through calculation and the combination of the wind speed of the internal fan and the frequency of the wind sweeping mechanism;
and the processing module is used for comparing the air pollutant concentration detected by the detection module in the pollutant concentration detection time with the pollutant standard concentration value to determine the operation mode and the operation parameters of the air conditioner and controlling the air conditioner to operate according to the determined operation mode and the determined operation parameters.
13. An air conditioner having the control device of claim 12.
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| CN112815497B (en) * | 2021-01-14 | 2022-04-22 | 珠海格力电器股份有限公司 | Air conditioner control method and device, storage medium and air conditioner |
| CN113237169A (en) * | 2021-05-07 | 2021-08-10 | 江苏中科睿赛污染控制工程有限公司 | Control method for automatic mode of fresh air system |
| CN113446709A (en) * | 2021-06-30 | 2021-09-28 | 北京小米移动软件有限公司 | Fresh air conditioner air supply method and device, electronic equipment and storage medium |
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