CN104132429B - The control method of convertible frequency air-conditioner, apparatus and system - Google Patents
The control method of convertible frequency air-conditioner, apparatus and system Download PDFInfo
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- CN104132429B CN104132429B CN201410401739.3A CN201410401739A CN104132429B CN 104132429 B CN104132429 B CN 104132429B CN 201410401739 A CN201410401739 A CN 201410401739A CN 104132429 B CN104132429 B CN 104132429B
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Abstract
The invention discloses a kind of control method of convertible frequency air-conditioner, apparatus and system.Wherein, the control method includes：Obtain the running frequency and noise signal corresponding with running frequency of convertible frequency air-conditioner；The frequency noise distribution curve of convertible frequency air-conditioner is generated based on running frequency and noise signal；One or more target frequencies of convertible frequency air-conditioner are determined according to distribution curve, wherein, the value of the corresponding noise signal of target frequency is not higher than default noise threshold；Control convertible frequency air-conditioner is operated on the operation corresponding target frequency of request with convertible frequency air-conditioner.By the embodiment of the present invention, noise variation is very big when solving the problems, such as that frequency-conversion air-conditioning system runs in the prior art, realizes the noise of lasting control convertible frequency air-conditioner, and the relatively low effect of noise.
Description
Technical field
The present invention relates to airconditioning control field, in particular to a kind of control method of convertible frequency air-conditioner, device and it is
System.
Background technology
In the prior art, frequency conversion outdoor unit normal operating frequency haves a wide reach, and in Design of Variable Frequence Air Conditioner, can use pin
Its running frequency point is carried out to the partial resonance point that the outer machine structure of frequency conversion is present and evades design, to prevent convertible frequency air-conditioner in resonance point
Operation produces related vibration and noise problem.
But, the assembling uniformity and the difference of installation environment existed in itself due to convertible frequency air-conditioner can all cause frequency conversion room
The change of outer machine system dynamics feature, causes the variation of system resonance point.Existing scheme can not accurately catch these variations, lead to
Can often cause frequency conversion outdoor unit big in some operating mode running noises, cause customer complaint, reduce the public praise of product.
Noise variation very big problem when being run for frequency-conversion air-conditioning system in the prior art, not yet proposes effective at present
Solution.
The content of the invention
Noise variation very big problem when being run for frequency-conversion air-conditioning system in correlation technique, not yet proposes effective at present
Solution, therefore, it is a primary object of the present invention to provide a kind of control method of convertible frequency air-conditioner, apparatus and system, to solve
Certainly above mentioned problem.
To achieve these goals, according to an aspect of the invention, there is provided a kind of control method of convertible frequency air-conditioner, is somebody's turn to do
Control method includes：Obtain the running frequency and noise signal corresponding with running frequency of convertible frequency air-conditioner；Based on running frequency and
Noise signal generates the frequency noise distribution curve of convertible frequency air-conditioner；One or more mesh of convertible frequency air-conditioner are determined according to distribution curve
Mark frequency, wherein, the value of the corresponding noise signal of target frequency is not higher than default noise threshold；Control convertible frequency air-conditioner operate in
The operation of convertible frequency air-conditioner is asked on corresponding target frequency.
Further, the frequency noise distribution curve based on running frequency and noise signal generation convertible frequency air-conditioner includes：It is logical
Cross A/D converter and noise signal is converted into data signal；Calculate the acoustic pressure of the acoustic pressure and reference sound pressure indicated by data signal
Value；Draw the frequency noise distribution curve of running frequency and sound pressure level.
Further, one or more target frequencies for determining convertible frequency air-conditioner according to distribution curve include：By convertible frequency air-conditioner
The frequency range of compressor operating be divided into N number of frequency field；By not higher than default noise threshold in each frequency field
Running frequency is used as target frequency.
Further, using the running frequency of not higher than default noise threshold in each frequency field as target frequency bag
Include：Obtain the corresponding sound pressure level of each running frequency in frequency field；The minimum running frequency of sound pressure level is defined as not high
In the target frequency of default noise threshold.
Further, using the running frequency of not higher than default noise threshold in each frequency field as target frequency bag
Include：Obtain the corresponding sound pressure level of each running frequency in frequency field；Sound pressure level is not higher than default noise threshold and not low
It is defined as target frequency in the running frequency for presetting minimum noise.
Further, control convertible frequency air-conditioner is operated in includes on the operation corresponding target frequency of request with convertible frequency air-conditioner：
Operation request is obtained, wherein, the frequency of request operation is carried in operation request；It is determined that the corresponding frequency of frequency of request operation
Region；Obtain the target frequency of frequency field；Control convertible frequency air-conditioner operates in target frequency.
To achieve these goals, according to another aspect of the present invention, there is provided a kind of control device of convertible frequency air-conditioner, should
Control device includes：Acquiring unit, running frequency and noise signal corresponding with running frequency for obtaining convertible frequency air-conditioner；It is raw
Into unit, the frequency noise distribution curve for generating convertible frequency air-conditioner based on running frequency and noise signal；Determining unit, is used for
One or more target frequencies of convertible frequency air-conditioner are determined according to distribution curve, wherein, the value of the corresponding noise signal of target frequency
Not higher than preset noise threshold；Control unit, it is corresponding with the operation request of convertible frequency air-conditioner for controlling convertible frequency air-conditioner to operate in
On target frequency.
Further, generation unit includes：Modular converter, for noise signal to be converted into numeral by A/D converter
Signal；First computing module, the sound pressure level for calculating acoustic pressure and reference sound pressure indicated by data signal；Drafting module, uses
In the frequency noise distribution curve for drawing running frequency and sound pressure level.
Further, it is determined that unit includes：Division module, for the frequency range of the compressor operating of convertible frequency air-conditioner to be drawn
It is divided into N number of frequency field；First determining module, for the running frequency by noise threshold is not higher than preset in each frequency field
As target frequency.
Further, the first determining module includes：First acquisition module, for obtaining each operation frequency in frequency field
The corresponding sound pressure level of rate；First determination sub-module, for the minimum running frequency of sound pressure level to be defined as not higher than presetting noise
The target frequency of threshold value.
Further, the first determining module includes：Second acquisition module, for obtaining each operation frequency in frequency field
The corresponding sound pressure level of rate；Second determination sub-module, for sound pressure level being not higher than into default noise threshold and being not less than default minimum
The running frequency of noise is defined as target frequency.
Further, control unit includes：3rd acquisition module, for obtaining operation request, wherein, taken in operation request
Frequency with request operation；Second determining module, the corresponding frequency field of frequency for determining request operation；4th obtains
Module, the target frequency for obtaining frequency field；Control module, for controlling convertible frequency air-conditioner to operate in target frequency.
To achieve these goals, according to another aspect of the present invention, there is provided a kind of control system of convertible frequency air-conditioner, should
Control system includes：Sound level meter, is connected with compressor, for obtaining the running frequency of convertible frequency air-conditioner and corresponding with running frequency
Noise signal；Controller, is connected between sound level meter and compressor, for empty based on running frequency and noise signal generation frequency conversion
The frequency noise distribution curve of tune, and one or more target frequencies of convertible frequency air-conditioner are determined according to distribution curve, wherein, target
The value of the corresponding noise signal of frequency is not higher than default noise threshold, then controls compressor operating in the operation with convertible frequency air-conditioner
Ask on corresponding target frequency.
Further, control system also includes：A/D converter, is connected between sound level meter and controller, for by noise
Signal is converted to data signal；Controller also includes sub-processor, is connected with A/D converter, signified for calculating data signal
The acoustic pressure and the sound pressure level of reference sound pressure shown, and draw the frequency noise distribution curve of running frequency and sound pressure level.
Further, sound level meter is arranged in the sheet metal component chamber of the outdoor unit of convertible frequency air-conditioner.
By the embodiment of the present invention, of convertible frequency air-conditioner or is determined by predetermined frequency noise distribution curve more
Individual target frequency, then when new operation request is received, can control convertible frequency air-conditioner to operate on corresponding target frequency,
Because the value of the corresponding noise signal of target frequency is no greater than default noise threshold, convertible frequency air-conditioner operates in the target frequently
Rate, convertible frequency air-conditioner run when noise be very little, and can control convertible frequency air-conditioner noise persistently maintain one it is relatively low
Decibel, solve the problems, such as in the prior art frequency-conversion air-conditioning system run when noise variation it is very big, realize it is lasting control become
The noise of frequency air-conditioning, noise stabilization and the relatively low effect of noise.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the control method of convertible frequency air-conditioner according to embodiments of the present invention；
Fig. 2 is the schematic diagram of frequency noise curve map according to embodiments of the present invention；
Fig. 3 is the flow chart of the control method of a kind of optional convertible frequency air-conditioner according to embodiments of the present invention；
Fig. 4 is the schematic diagram of the control device of convertible frequency air-conditioner according to embodiments of the present invention；And
Fig. 5 is the schematic diagram of the control system of convertible frequency air-conditioner according to embodiments of the present invention.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model of present invention protection
Enclose.
It should be noted that term " first ", " in description and claims of this specification and above-mentioned accompanying drawing
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.Additionally, term " comprising " and " having " and their any deformation, it is intended that cover
Lid is non-exclusive to be included, for example, the process, method, system, product or the equipment that contain series of steps or unit are not necessarily limited to
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or other intrinsic steps of equipment or unit.
Fig. 1 is the flow chart of the control method of convertible frequency air-conditioner according to embodiments of the present invention.As shown in figure 1, the controlling party
Method can be achieved by the steps of：
Step S102：Obtain the running frequency and noise signal corresponding with running frequency of convertible frequency air-conditioner.
Step S104：The frequency noise distribution curve of convertible frequency air-conditioner is generated based on running frequency and noise signal.
Step S106：One or more target frequencies of convertible frequency air-conditioner are determined according to distribution curve, wherein, target frequency pair
The value of the noise signal answered is not higher than default noise threshold.
Step S108：Control convertible frequency air-conditioner is operated on the operation corresponding target frequency of request with convertible frequency air-conditioner.
By the embodiment of the present invention, of convertible frequency air-conditioner or is determined by predetermined frequency noise distribution curve more
Individual target frequency, then when new operation request is received, can control convertible frequency air-conditioner to operate on corresponding target frequency,
Because the value of the corresponding noise signal of target frequency is no greater than default noise threshold, convertible frequency air-conditioner operates in the target frequently
Rate, convertible frequency air-conditioner run when noise be very little, and can control convertible frequency air-conditioner noise persistently maintain one it is relatively low
Decibel, solve the problems, such as in the prior art frequency-conversion air-conditioning system run when noise variation it is very big, realize it is lasting control become
The noise of frequency air-conditioning, and the relatively low effect of noise.
In the above embodiment of the present invention, the frequency noise point based on running frequency and noise signal generation convertible frequency air-conditioner
Cloth curve can include：Noise signal is converted to by data signal by A/D converter；Calculate the acoustic pressure indicated by data signal
With the sound pressure level of reference sound pressure；Draw the frequency noise distribution curve of running frequency and sound pressure level.
Specifically, after sound level meter collects original noise signal, electric signal is converted into, then A/D converter
Noise signal is converted into data signal.Controller calculates the SPL of the data signal after data signal is got, and SPL is
It is sound pressure level, the as sound pressure level in above-described embodiment.
Wherein, sound pressure level is acoustic pressure virtual value to be measured and the ratio of reference sound pressure takes common logarithm, multiplied by with 20, its unit
It is decibel.
Further, it is calculated after the corresponding sound pressure level of each running frequency, draws the song of running frequency-sound pressure level
Line obtains frequency noise distribution curve.As shown in Fig. 2 transverse axis is running frequency (Hz), the longitudinal axis is sound pressure level.
In the above embodiment of the present invention, one or more target frequencies for determining convertible frequency air-conditioner according to distribution curve can
To include：The frequency range of the compressor operating of convertible frequency air-conditioner is divided into N number of frequency field；Will be not high in each frequency field
In default noise threshold running frequency as target frequency.
According to heat pump performance distribution character (the frequency noise distribution curve i.e. in above-described embodiment) achieved above, can be with
The frequency range of compressor operating is divided into N number of frequency field, the lower frequency limit of ith zone is f1, and upper limiting frequency is f2
(as shown in Figure 2).When frequency conversion outdoor unit operates in ith zone, under each running frequency in the range of test f1 and f2
Sound pressure level, is analyzed and contrasts to the acoustic pressure total value and acoustic pressure feature under each running frequency, it is determined that not higher than default noise
The running frequency frun of threshold value (i.e. optimal) is used as target frequency.
By above-described embodiment, controller judges the frequency field of request operation by running request, such as judges system
When ith zone is run, the just direct stable operation under the corresponding target frequency frun of the frequency field, without in others
Run under frequency, the lowest noise value operation under the band frequency is realized, while avoiding abnormal common under other frequencies
Shake generation.
Using above-described embodiment, it is ensured that air-conditioning reduces noise to being used in the minimum running frequency operation of noise
Influence；Efficiently solve fluctuation, the caused noise exception of exception of installation environment due to assembling.
In an optional embodiment of the present invention, by the operation of not higher than default noise threshold in each frequency field frequently
Rate can include as target frequency：Obtain the corresponding sound pressure level of each running frequency in frequency field；Sound pressure level is minimum
Running frequency be defined as not higher than presetting the target frequency of noise threshold.
In another optional embodiment of the invention, by the operation of not higher than default noise threshold in each frequency field
Frequency can include as target frequency：Obtain the corresponding sound pressure level of each running frequency in frequency field；By sound pressure level not
Higher than default noise threshold and the running frequency that is not less than default minimum noise is defined as target frequency.
Specifically, due to convertible frequency air-conditioner compressor body radiated noise and the parts radiated noise frequency of compressor
It is the frequency multiplication relation of compressor operating frequency, determining the default noise conditions of the target frequency in the i of operation area can include：
(1) in frequency field i, each running frequency between the running frequency f1 of lower limit and the running frequency f2 of the upper limit
The minimum running frequency of sound pressure level be the stable operation frequency of target frequency frun, the i.e. frequency range；
(2) in frequency field i, the sound pressure level of the frequency noise curve under certain running frequency is higher than 35dB (A) and is less than
40dB (A) (meets default noise range), then the running frequency is target frequency frun, can there is multiple target frequencies
frun.If in the absence of the running frequency for meeting default noise range in some frequency field, it is determined that the frequency field
It is interior in the absence of target area.Such as, the corresponding sound pressure level of running frequency in frequency field is above 40dB (A), then judge this
There is no target frequency in frequency field, when above-mentioned step S108 is performed, the request that the operation can be controlled to be carried in asking
The frequency of operation is the target frequency of adjacent frequency field, wherein, the adjacent frequency field is that upper limiting frequency is the frequency of f1
Rate region or lower frequency limit are the frequency field of f2.
It should be further stated that, control convertible frequency air-conditioner operate in the corresponding target of operation request of convertible frequency air-conditioner frequently
Include in rate：Operation request is obtained, wherein, the frequency of request operation is carried in operation request；It is determined that the frequency of request operation
Corresponding frequency field；Obtain the target frequency of frequency field；Control convertible frequency air-conditioner operates in target frequency.
The embodiment of the present invention is discussed in detail with reference to Fig. 3, as shown in figure 3, the embodiment of the present invention can be by following step
It is rapid to realize：
Step S301：Noise signal is gathered by sound level meter, and records running frequency corresponding with the noise signal.
Step S302：Draw the frequency noise curve of convertible frequency air-conditioner.
Step S303：Obtain the property parameters of convertible frequency air-conditioner.
Step S304：Draw the property parameters Attributes Frequency curve corresponding with running frequency of convertible frequency air-conditioner.
Step S305：The frequency range for dividing convertible frequency air-conditioner operation using Attributes Frequency curve obtains N number of frequency field.
Step S306：Target frequency in each frequency field is determined by frequency noise curve.
Step S307：It is determined that carrying the target frequency region belonging to the frequency for asking operation in the operation request for obtaining.
Step S308：Control convertible frequency air-conditioner operates in the target frequency in target frequency region.
Sound level meter is set on the control panel of controller by the above embodiment of the present invention, is obtained convertible frequency air-conditioner and is existed
Noise-frequency distribution (the frequency noise curve i.e. in above-described embodiment) under current confined state and installation environment, for making an uproar
Sound low-limit frequency (target frequency i.e. in above-described embodiment) is judged, and can efficiently solve model machine assembling uniformity and installation environment
The noise exception that variation brings；The N number of running frequency being distributed according to heat pump performance is divided and the optimal fortune in current operation frequency region
The determination of line frequency, it is ensured that minimum running frequency point (i.e. target frequency) operation of air-conditioning selection noise；Can considering property
Energy and NF, it is ensured that the changes in temperature and noise comfortableness of convertible frequency air-conditioner.
It should be noted that can be in such as one group computer executable instructions the step of the flow of accompanying drawing is illustrated
Performed in computer system, and, although logical order is shown in flow charts, but in some cases, can be with not
The order being same as herein performs shown or described step.
Fig. 4 is the schematic diagram of the control device of convertible frequency air-conditioner according to embodiments of the present invention.As shown in figure 4, the control is filled
Putting to include：Acquiring unit 10, generation unit 20, determining unit 30 and control unit 40.
Wherein, acquiring unit, running frequency and noise signal corresponding with running frequency for obtaining convertible frequency air-conditioner；It is raw
Into unit, the frequency noise distribution curve for generating convertible frequency air-conditioner based on running frequency and noise signal；Determining unit, is used for
One or more target frequencies of convertible frequency air-conditioner are determined according to distribution curve, wherein, the value of the corresponding noise signal of target frequency
Not higher than preset noise threshold；Control unit, it is corresponding with the operation request of convertible frequency air-conditioner for controlling convertible frequency air-conditioner to operate in
On target frequency.
By the embodiment of the present invention, of convertible frequency air-conditioner or is determined by predetermined frequency noise distribution curve more
Individual target frequency, then when new operation request is received, can control convertible frequency air-conditioner to operate on corresponding target frequency,
Because the value of the corresponding noise signal of target frequency is no greater than default noise threshold, convertible frequency air-conditioner operates in the target frequently
Rate, convertible frequency air-conditioner run when noise be very little, and can control convertible frequency air-conditioner noise persistently maintain one it is relatively low
Decibel, solve the problems, such as in the prior art frequency-conversion air-conditioning system run when noise variation it is very big, realize it is lasting control become
The noise of frequency air-conditioning, and the relatively low effect of noise.
In the above embodiment of the present invention, generation unit can include：Modular converter, for being incited somebody to action by A/D converter
Noise signal is converted to data signal；First computing module, for calculating the acoustic pressure indicated by data signal with reference sound pressure
Sound pressure level；Drafting module, the frequency noise distribution curve for drawing running frequency and sound pressure level.
Specifically, after sound level meter collects original noise signal, electric signal is converted into, then A/D converter
Noise signal is converted into data signal.Controller calculates the SPL of the data signal after data signal is got, and SPL is
It is sound pressure level, the as sound pressure level in above-described embodiment.
Wherein, sound pressure level is that boosting virtual value to be measured takes common logarithm with the ratio with reference to boosting, multiplied by with 20, its unit
It is decibel.
According to the abovementioned embodiments of the present invention, determining unit can include：Division module, for by the compression of convertible frequency air-conditioner
The frequency range of machine operation is divided into N number of frequency field；First determining module, for will not higher than be preset in each frequency field
The running frequency of noise threshold is used as target frequency.
According to heat pump performance distribution character (the frequency noise distribution curve i.e. in above-described embodiment) achieved above, can be with
The frequency range of compressor operating is divided into N number of frequency field, the lower frequency limit of ith zone is f1, and upper limiting frequency is f2
(as shown in Figure 2).When frequency conversion outdoor unit operates in ith zone, under each running frequency in the range of test f1 and f2
Sound pressure level, is analyzed and contrasts to the acoustic pressure total value and acoustic pressure feature under each running frequency, it is determined that not higher than default noise
The running frequency frun of threshold value (i.e. optimal) is used as target frequency.
By above-described embodiment, controller judges the frequency field of request operation by running request, such as judges system
When ith zone is run, the just direct stable operation under the corresponding target frequency frun of the frequency field, without in others
Run under frequency, the lowest noise value operation under the band frequency is realized, while avoiding abnormal common under other frequencies
Shake generation.
In an optional embodiment of the present invention, the first determining module can include：First acquisition module, for obtaining
The corresponding sound pressure level of each running frequency in frequency field；First determination sub-module, for by the minimum operation of sound pressure level frequently
Rate is defined as not higher than presetting the target frequency of noise threshold.
In another optional embodiment of the invention, the first determining module can include：Second acquisition module, for obtaining
Take the corresponding sound pressure level of each running frequency in frequency field；Second determination sub-module, it is default for sound pressure level to be not higher than
Noise threshold and it is not less than the target frequency that the running frequency of default minimum noise is defined as.
Specifically, due to convertible frequency air-conditioner compressor body radiated noise and the parts radiated noise frequency of compressor
It is the frequency multiplication relation of compressor operating frequency, determining the default noise conditions of the target frequency in the i of operation area can include：
(1) in frequency field i, each running frequency between the running frequency f1 of lower limit and the running frequency f2 of the upper limit
The minimum running frequency of sound pressure level be the stable operation frequency of target frequency frun, the i.e. frequency range；
(2) in frequency field i, the sound pressure level of the frequency noise curve under certain running frequency is higher than 35dB (A) and is less than
40dB (A) (meets default noise range), then the running frequency is target frequency frun, can there is multiple target frequencies
frun.If in the absence of the running frequency for meeting default noise range in some frequency field, it is determined that the frequency field
It is interior in the absence of target area.Such as, the corresponding sound pressure level of running frequency in frequency field is above 40dB (A), then judge this
There is no target frequency in frequency field, when above-mentioned step S108 is performed, the request that the operation can be controlled to be carried in asking
The frequency of operation is the target frequency of adjacent frequency field, wherein, the adjacent frequency field is that upper limiting frequency is the frequency of f1
Rate region or lower frequency limit are the frequency field of f2.
Further, control unit includes：3rd acquisition module, for obtaining operation request, wherein, taken in operation request
Frequency with request operation；Second determining module, the corresponding frequency field of frequency for determining request operation；4th obtains
Module, the target frequency for obtaining frequency field；Control module, for controlling convertible frequency air-conditioner to operate in target frequency.
Modules provided in the present embodiment are identical with the application method that the corresponding step of embodiment of the method is provided, should
Can also be identical with scene.It is noted, of course, that the scheme that above-mentioned module is related to can be not limited in above-described embodiment one
Content and scene, and above-mentioned module may operate in terminal or mobile terminal, can be realized by software or hardware.
Fig. 5 is the schematic diagram of the control system of convertible frequency air-conditioner according to embodiments of the present invention.
As shown in figure 5, the control system can include：Sound level meter 50 and controller 60.
Wherein, sound level meter 50, are connected with compressor 70, for obtain convertible frequency air-conditioner running frequency and with running frequency pair
The noise signal answered.
Controller 60, is connected between sound level meter and compressor, for based on running frequency and noise signal generation frequency conversion
The frequency noise distribution curve of air-conditioning, and one or more target frequencies of convertible frequency air-conditioner are determined according to distribution curve, wherein, mesh
The value of the corresponding noise signal of mark frequency is not higher than default noise threshold, then controls compressor operating in the fortune with convertible frequency air-conditioner
On the corresponding target frequency of row request.
By the embodiment of the present invention, of convertible frequency air-conditioner or is determined by predetermined frequency noise distribution curve more
Individual target frequency, then when new operation request is received, can control convertible frequency air-conditioner to operate on corresponding target frequency,
Because the value of the corresponding noise signal of target frequency is no greater than default noise threshold, convertible frequency air-conditioner operates in the target frequently
Rate, convertible frequency air-conditioner run when noise be very little, and can control convertible frequency air-conditioner noise persistently maintain one it is relatively low
Decibel, solve the problems, such as in the prior art frequency-conversion air-conditioning system run when noise variation it is very big, realize it is lasting control become
The noise of frequency air-conditioning, and the relatively low effect of noise.
According to the abovementioned embodiments of the present invention, control system can also include：A/D converter 80, be connected to sound level meter with
Between controller, for noise signal to be converted into data signal；Controller also includes sub-processor, is connected with A/D converter,
For calculating the sound pressure level of acoustic pressure and reference sound pressure indicated by data signal, and draw the frequency of running frequency and sound pressure level and make an uproar
Sound distribution curve.
Sound level meter in above-described embodiment can be condenser type sound level meter.
Above-mentioned condenser type sound level meter can be set on the controller, and the compressor with noise source is both placed in convertible frequency air-conditioner
Outdoor unit sheet metal component cavity in.
By above-described embodiment, by the soundproof effect of sheet metal component, it is possible to reduce influence of the outside noise to sound level meter, protect
The noise signal that card sound level meter is obtained is the most direct feedback of compressor operating noise.
Specifically, when air-conditioning outdoor unit assembling and after install, can be set on the control panel of controller
Condenser type sound level meter, by the noise signal of the sound level meter collect and process machine, and the primary signal that will be collected is converted to telecommunications
Number, above-mentioned electric signal is then converted into by data signal by A/D converter (i.e. analog-digital converter).
Further, controller is after above-mentioned data signal is got, control chip therein (i.e. above-described embodiment
In sub-processor) carry out signal analysis, determine the corresponding sound pressure level of different running frequencies and frequency characteristic, and by itself and setting
Standard contrasted, so that it is determined that performance and noise all meet requirement running frequency distribution the (life i.e. in above-described embodiment
Into frequency noise distribution curve, as shown in Figure 2).
As can be seen from the above description, the present invention realizes following technique effect：
By the embodiment of the present invention, of convertible frequency air-conditioner or is determined by predetermined frequency noise distribution curve more
Individual target frequency, then when new operation request is received, can control convertible frequency air-conditioner to operate on corresponding target frequency,
Because the value of the corresponding noise signal of target frequency is no greater than default noise threshold, convertible frequency air-conditioner operates in the target frequently
Rate, convertible frequency air-conditioner run when noise be very little, and can control convertible frequency air-conditioner noise persistently maintain one it is relatively low
Decibel, solve the problems, such as in the prior art frequency-conversion air-conditioning system run when noise variation it is very big, realize it is lasting control become
The noise of frequency air-conditioning, and the relatively low effect of noise.
Obviously, those skilled in the art should be understood that above-mentioned of the invention each module or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and constituted
Network on, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to they are stored
Performed by computing device in the storage device, or they be fabricated to each integrated circuit modules respectively, or by they
In multiple modules or step single integrated circuit module is fabricated to realize.So, the present invention is not restricted to any specific
Hardware and software is combined.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made it is any
Modification, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (12)
1. a kind of control method of convertible frequency air-conditioner, it is characterised in that including：
Obtain the running frequency and noise signal corresponding with the running frequency of convertible frequency air-conditioner；
The frequency noise distribution curve of the convertible frequency air-conditioner is generated based on the running frequency and the noise signal；
One or more target frequencies of the convertible frequency air-conditioner are determined according to the distribution curve, wherein, the target frequency pair
The value of the noise signal answered is not higher than default noise threshold；
The convertible frequency air-conditioner is controlled to operate on the target frequency corresponding with the operation request of the convertible frequency air-conditioner,
Wherein, the frequency noise distribution curve bag of the convertible frequency air-conditioner is generated based on the running frequency and the noise signal
Include：
The noise signal is converted to by data signal by A/D converter；
Calculate the sound pressure level of the acoustic pressure and reference sound pressure indicated by the data signal；
Draw the frequency noise distribution curve of the running frequency and the sound pressure level.
2. control method according to claim 1, it is characterised in that the convertible frequency air-conditioner is determined according to the distribution curve
One or more target frequencies include：
The frequency range of the compressor operating of the convertible frequency air-conditioner is divided into N number of frequency field；
The running frequency of the default noise threshold will be not higher than in each described frequency field as the target frequency.
3. control method according to claim 2, it is characterised in that will be not higher than in each described frequency field described pre-
If the running frequency of noise threshold includes as the target frequency：
Obtain the corresponding sound pressure level of each in frequency field running frequency；
The minimum running frequency of the sound pressure level is defined as the target frequency of not higher than described default noise threshold.
4. control method according to claim 2, it is characterised in that will be not higher than in each described frequency field described pre-
If the running frequency of noise threshold includes as the target frequency：
Obtain the corresponding sound pressure level of each in frequency field running frequency；
The sound pressure level is not higher than the default noise threshold and the running frequency determination of default minimum noise is not less than
It is the target frequency.
5. the control method according to claim 3 or 4, it is characterised in that the control convertible frequency air-conditioner operate in it is described
The operation of convertible frequency air-conditioner asks to include on the corresponding target frequency：
The operation request is obtained, wherein, the frequency of request operation is carried in the operation request；
Determine the corresponding frequency field of frequency of the request operation；
Obtain the target frequency of the frequency field；
The convertible frequency air-conditioner is controlled to operate in the target frequency.
6. a kind of control device of convertible frequency air-conditioner, it is characterised in that including：
Acquiring unit, running frequency and noise signal corresponding with the running frequency for obtaining convertible frequency air-conditioner；
Generation unit, the frequency noise distribution for generating the convertible frequency air-conditioner based on the running frequency and the noise signal
Curve；
Determining unit, one or more target frequencies for determining the convertible frequency air-conditioner according to the distribution curve, wherein, institute
The value for stating the corresponding noise signal of target frequency is not higher than default noise threshold；
Control unit, for controlling the convertible frequency air-conditioner to operate in the target corresponding with the operation request of the convertible frequency air-conditioner
In frequency,
Wherein, the generation unit includes：
Modular converter, for the noise signal to be converted into data signal by A/D converter；
First computing module, the sound pressure level for calculating acoustic pressure and reference sound pressure indicated by the data signal；
Drafting module, the frequency noise distribution curve for drawing the running frequency and the sound pressure level.
7. control device according to claim 6, it is characterised in that determining unit includes：
Division module, for the frequency range of the compressor operating of the convertible frequency air-conditioner to be divided into N number of frequency field；
First determining module, for the running frequency by the default noise threshold is not higher than in each described frequency field
As the target frequency.
8. control device according to claim 7, it is characterised in that first determining module includes：
First acquisition module, for obtaining the corresponding sound pressure level of each in frequency field running frequency；
First determination sub-module, for the minimum running frequency of the sound pressure level to be defined as into not higher than described default noise
The target frequency of threshold value.
9. control device according to claim 7, it is characterised in that first determining module includes：
Second acquisition module, for obtaining the corresponding sound pressure level of each in frequency field running frequency；
Second determination sub-module, for the sound pressure level to be not higher than into the default noise threshold and default minimum noise is not less than
The running frequency be defined as meeting the target frequency of the default noise conditions.
10. control device according to claim 8 or claim 9, it is characterised in that described control unit includes：
3rd acquisition module, for obtaining the operation request, wherein, the frequency of request operation is carried in the operation request
Rate；
Second determining module, the corresponding frequency field of frequency for determining the request operation；
4th acquisition module, the target frequency for obtaining the frequency field；
Control module, for controlling the convertible frequency air-conditioner to operate in the target frequency.
A kind of 11. control systems of convertible frequency air-conditioner, it is characterised in that including：
Sound level meter, is connected with compressor, running frequency and noise corresponding with the running frequency for obtaining convertible frequency air-conditioner
Signal；
Controller, is connected between the sound level meter and the compressor, for being believed based on the running frequency and the noise
The frequency noise distribution curve of number generation convertible frequency air-conditioner, and determine one of the convertible frequency air-conditioner according to the distribution curve
Or multiple target frequencies, wherein, the value of the corresponding noise signal of the target frequency is not higher than default noise threshold, so
The compressor operating is controlled afterwards on the corresponding target frequency of operation request with the convertible frequency air-conditioner
Wherein, the control system also includes：
A/D converter, is connected between the sound level meter and the controller, for the noise signal to be converted into digital letter
Number；
The controller also includes sub-processor, is connected with the A/D converter, for calculating indicated by the data signal
The sound pressure level of acoustic pressure and reference sound pressure, and draw the frequency noise distribution curve of the running frequency and the sound pressure level.
12. control systems according to claim 11, it is characterised in that the sound level meter is arranged on the outdoor of convertible frequency air-conditioner
In the sheet metal component chamber of machine.
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| CN108592322A (en) * | 2018-03-20 | 2018-09-28 | 珠海格力电器股份有限公司 | Control method and device, the system of outer machine noise |
| CN108826603B (en) * | 2018-06-14 | 2021-04-09 | 广东美的制冷设备有限公司 | Control method and device of air conditioner, air conditioner and remote controller thereof |
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