CN109870213A - Liquid-level detecting method, liquid level detection device, air conditioner and computer readable storage medium - Google Patents
Liquid-level detecting method, liquid level detection device, air conditioner and computer readable storage medium Download PDFInfo
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Abstract
The present invention discloses a kind of liquid-level detecting method, liquid level detection device, air conditioner and computer readable storage medium.Liquid-level detecting method includes: the atmospheric gas pressure of air pressure and second pressure test device detection in the detection bucket for obtain the detection of the first pressure test device；According to air pressure and the atmospheric gas pressure in the detection bucket, liquid level in the liquid reserve tank is obtained.Since technical scheme considers the atmospheric gas pressure of real-time change, therefore when calculating liquid level in the liquid reserve tank, by obtaining current atmospheric gas pressure first, in conjunction with the air pressure in current detection bucket, so as to obtain the current level in the more accurate liquid reserve tank, the accuracy of level sensing is improved.
Description
Technical field
The present invention relates to level sensing field, in particular to a kind of liquid-level detecting method, liquid level detection device, air conditioner with
And computer readable storage medium.
Background technique
Level sensing is carried out in the prior art and is mainly the following method: float method, supercritical ultrasonics technology, Multi-point contact type
Method, the detection that liquid level is realized by capacitor and touch switch, the mechanical feedback for realizing liquid level of method with buoyancy；For
The above several method or be exactly that float is easy to block or is exactly that device cost itself is excessively high, there are also be exactly feedback information essence
Exactness is not high, causes induction level and to make certain judgement in time.
It is convenient using law of connected vessels detection level sensing process, and cost can be saved, but this calculation method
Accuracy is only guaranteed in the constant Shi Caineng of ambient air pressure；Actually ambient air pressure is to change whenever and wherever possible
, therefore the accuracy for detecting using law of connected vessels liquid level is not high.
Summary of the invention
The main object of the present invention is to propose a kind of liquid-level detecting method, liquid level detection device, air conditioner, it is intended to improve liquid
The accuracy of position detection.
To achieve the above object, the liquid-level detecting method proposed by the present invention, the liquid-level detecting method are used for liquid level
Detection device, the liquid level detection device include liquid reserve tank, and detection bucket, the water inlet and the liquid reserve tank of the detection bucket
Internal cavity connection is equipped with the first air pressure in the detection bucket and examines so that the detection bucket and the liquid reserve tank form linker
Survey device, environment where the liquid level detection device is equipped with the second pressure test device, the liquid-level detecting method include with
Lower step:
Obtain air pressure and second pressure test device inspection in the detection bucket of the first pressure test device detection
The atmospheric gas pressure of survey；
According to air pressure and the atmospheric gas pressure in the detection bucket, liquid level in the liquid reserve tank is obtained.
Further, air pressure and described second in the detection bucket for obtaining the detection of the first pressure test device
Pressure test device detection atmospheric gas pressure the step of include:
In the first preset duration, the first gas of first pneumatic shuttle detection of the first preset quantity is continuously acquired
Pressure, and continuously acquire the second air pressure of second pneumatic shuttle detection of the second preset quantity；
Processing is averaged to first air pressure of first preset quantity, to obtain gas in the detection bucket
Pressure；Processing is averaged to second air pressure of second preset quantity, to obtain the atmospheric gas pressure.
Further, air pressure and described second in the detection bucket for obtaining the detection of the first pressure test device
Before the step of atmospheric gas pressure of pressure test device detection further include:
Receive the instruction that starting detects liquid level in the liquid reserve tank.
It is described according to air pressure and the atmospheric gas pressure in the detection bucket, it includes following for obtaining liquid level in the liquid reserve tank
Step:
Call the first relation function of the storage；First relation function be in the case where atmospheric gas pressure is Reference pressure,
Detect the relation function of air pressure and liquid level in liquid reserve tank in bucket；
The atmospheric gas pressure that will acquire calculates presently described liquid storage as the Reference pressure in first relation function
The first liquid level in case；
Wherein, first relation function are as follows:
Wherein, HS waterFor the first liquid level in the liquid reserve tank, PS gasFor the Reference pressure, PS barrelsFor gas in the detection bucket
Pressure, HBucket bottomOpen height is intake to the liquid reserve tank bottom level for the detection bucket, and ρ is the fluid density in the liquid reserve tank, g
For acceleration of gravity.
Further, the atmospheric gas pressure that will acquire is as the Reference pressure in first relation function, meter
It calculates further comprising the steps of after the first liquid level in the liquid reserve tank:
According to the second relation function and first liquid level is stored, the second liquid level in presently described liquid reserve tank is calculated.
Second relation function be include liquid level in the liquid reserve tank, the Reference pressure, detection bucket in air pressure and institute
State the corresponding relationship function between detection bucket inside dimension.
Further, second relation function are as follows:
Wherein, HN waterFor the second liquid level in the liquid reserve tank, HS waterFor first liquid level, PSBucketFor gas in the detection bucket
Pressure, PS gasFor the Reference pressure, HBucketIt is the maximum path length for detecting liquid level variation in staving.
Further, second relation function are as follows:
Wherein, HN waterFor the second liquid level in the liquid reserve tank, HS waterFor first liquid level, PS barrelsFor gas in the detection bucket
Pressure, PS gasFor the Reference pressure, PO gasIt is that liquid level reaches corresponding described the at the time of the detection bucket bung hole in liquid reserve tank
The atmospheric pressure value of two baroceptors detection, HBucketIt is the maximum path length for detecting liquid level variation in staving.
Wherein, HN waterFor the second liquid level in the liquid reserve tank, HS waterFor first liquid level, PS barrelsFor gas in the detection bucket
Pressure, PS gasFor the Reference pressure, PO gasIt is that liquid level reaches corresponding described the at the time of the detection bucket bung hole in liquid reserve tank
The atmospheric pressure value of two baroceptors detection, HBucketIt is the maximum path length for detecting liquid level variation in staving.
The present invention also proposes a kind of liquid level detection device, comprising:
Liquid reserve tank has the cavity for accommodating liquid；
Bucket is detected, there is the water inlet being connected to the cavity, the detection bucket and the liquid reserve tank form linker；
First pressure test device is set in the detection bucket, for detecting air pressure in the detection bucket；
Second pressure test device, the atmospheric gas pressure for environment where detecting the liquid level detection device；
Control module, the control module are electrically connected with first pressure test device, the second pressure test device；Institute
Stating control module includes the liquid level inspection that memory, processor and being stored in can be run on the memory and on the processor
Ranging sequence, when the level sensing program is executed by the processor the step of liquid-level detecting method described in realization.
Further, the detection bucket is in the form of a column, and the water inlet is opened in the detection bucket bottom and/or side.
Further, the detection bucket includes staving and sealing cover closes sealing block at the top of the staving；
The pressure test device is set on the sealing block or on the staving.
Further, the liquid level detection device further includes support frame, and the detection bucket is connect with the crossbeam, and described
Crossbeam is equipped with the wire casing accommodated for the conducting wire of the pressure test device.
Further, the liquid level detection device further includes the human-computer interaction module being electrically connected with the control module；
The human-computer interaction module includes one of push-button unit, remote control unit, cell phone application, voice module or a variety of.
The present invention also proposes a kind of air conditioner, has the liquid level detection device in the air conditioner；
The liquid level detection device has the pipeline being connected to the cavity；
The pipeline of the liquid level detection device is connect with the heat exchanger, to receive the condensed water of heat exchanger and/or described
The pipeline of liquid level detection device is for the water source connection outside the air conditioner.
Further, the air conditioner includes atomizer, and the atomizer is connect with the liquid reserve tank, to the liquid storage
Liquid in case is atomized.
The present invention also proposes a kind of computer readable storage medium, is stored with liquid level on the computer readable storage medium
The step of detecting program, the liquid-level detecting method realized when the level sensing program is executed by the processor.
Technical scheme considers the atmospheric gas pressure of real-time change, therefore when calculating liquid level in the liquid reserve tank,
By obtaining current atmospheric gas pressure first, in conjunction with the air pressure in current detection bucket, so as to obtain more accurate institute
State the current level in liquid reserve tank.Further, when carrying out level sensing in liquid reserve tank every time, acquisition is current big
Current gas pressure in gas air pressure, and detection bucket corrects institute so as to the error of level sensing before effectively eliminating in time
The liquid level in liquid reserve tank is stated, thus the present invention can effectively improve the accuracy of level sensing, technical scheme is not required to
Initial reference liquid level point is set, it is thus possible to the liquid reserve tank suitable for various Inlet and outlet water modes.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 shows for the structure that the water inlet that liquid level detection device of the present invention detects bucket is opened in the detection bucket staving side
It is intended to；
Fig. 2 shows for the structure that the water inlet that liquid level detection device of the present invention detects bucket is opened in the detection bucket staving bottom
It is intended to；
Fig. 3 is that the liquid reserve tank of liquid level detection device of the present invention offers the structural schematic diagram of water inlet；
Fig. 4 is the circuit structure block diagram of liquid level detection device of the present invention；
Fig. 5 is the flow diagram of one embodiment of liquid-level detecting method of the present invention；
Fig. 6 is the flowage structure schematic diagram of another embodiment of liquid-level detecting method of the present invention.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 10 | Liquid reserve tank | 13 | Water inlet |
| 20 | Detect bucket | 40 | First pressure test device |
| 21 | Water inlet | 41 | Second pressure test device |
| 11 | Sealing block | 50 | Control module |
| 12 | Mounting hole | 60 | Human-computer interaction module |
| 30 | Support frame |
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The solution of the embodiment of the present invention is mainly: obtaining gas in the detection bucket of the first pressure test device detection
Pressure and the atmospheric gas pressure of second pressure test device detection；According to air pressure and the atmosphere gas in the detection bucket
Pressure, obtains liquid level in the liquid reserve tank.Since technical scheme considers the atmospheric gas pressure of real-time change, calculating
In the liquid reserve tank when liquid level, by obtaining current atmospheric gas pressure first, in conjunction with the air pressure in current detection bucket, so as to
Enough obtain the current level in the more accurate liquid reserve tank.
In order to better understand the above technical scheme, the exemplary reality of the disclosure is more fully described below with reference to accompanying drawings
Apply example.Although showing the exemplary embodiment of the disclosure in attached drawing, it being understood, however, that may be realized in various forms this public affairs
It opens and should not be limited by the embodiments set forth herein.It is to be able to thoroughly understand this on the contrary, providing these embodiments
It is open, and the scope of the present disclosure can be fully disclosed to those skilled in the art.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
The present invention proposes a kind of liquid level detection device and liquid-level detecting method, referring to FIG. 1 to FIG. 4, the liquid level inspection
Surveying device includes liquid reserve tank 10, detection bucket 20, control module 50, the first pressure test device 40, the second pressure test device
41, the liquid reserve tank 10 has the cavity for accommodating liquid；The detection bucket 20 has the water inlet being connected to the cavity
21, the detection bucket 20 forms linker with the liquid reserve tank 10.It is equipped with the first pressure test device 40 in the detection bucket 20,
For detecting air pressure in the detection bucket 20；Second pressure test device 41 is for detecting the liquid level detection device institute
In the atmospheric gas pressure of environment；First pressure test device 40, the second pressure test device 41 and 50 electricity of control module
Connection, in the detection bucket 20 that will test air pressure signal and atmospheric gas pressure signal export to control module 50, the control
Molding block 50 determines the current level in the liquid reserve tank 10 according to the air pressure signal.The control module 50 includes storage
Device, processor and it is stored in the level sensing program that can be run on the memory and on the processor, the liquid level inspection
The step of liquid-level detecting method is realized when ranging sequence is executed by the processor.
In the application, water can be accommodated in the liquid reserve tank 10 or other are non-corrosive, air solubility is low, density is bullied
The pressure factors such as temperature influence small other liquid, in following embodiment, are illustrated using the liquid as water.The detection bucket 20
Water inlet 21 and 10 bottom of liquid reserve tank have certain height distance, the height distance can be arbitrary value, as long as making
The enough water inlets 21 from the detection bucket 20 of water energy in the liquid reserve tank 10 enter in the detection bucket 20.When described
When 21 height of water inlet for thering is water and height of water level to be higher than the detection bucket 20 in liquid reserve tank 10, shape in the detection bucket 20 at this time
At a closed gas chamber, with the variation of water level in the liquid reserve tank 10, the water level in the detection bucket 20 is also accordingly sent out
The water inlet 21 of changing, water from the detection bucket 20 enters in the detection bucket 20, and compresses the gas in the detection bucket 20
Body, first pressure test device 40 are located in the closed gas chamber, for detecting the gas in the detection bucket 20
Body air pressure.Second pneumatic shuttle can connect in the liquid level detection device described in the liquid reserve tank 10, detection bucket 20 etc.
Component can not also be connected with the other component in the liquid level detection device, as long as being capable of detecting when the liquid level inspection
Survey the atmospheric gas pressure near device in environment.In the application, first pressure test device 40, the second air pressure detection dress
It sets 41 and is both preferably the baroceptor with temperature adjustmemt function.
Based on above-mentioned hardware configuration, the embodiment of liquid-level detecting method of the present invention is proposed.
Referring to Fig. 5, the liquid-level detecting method the following steps are included:
S10 obtains air pressure and second air pressure inspection in the detection bucket 20 of the first pressure test device 40 detection
Survey the atmospheric gas pressure that device 41 detects；
S20 obtains liquid level in the liquid reserve tank 10 according to air pressure and the atmospheric gas pressure in the detection bucket 20.
It should be noted that, air pressure, which is each meant, in the detection bucket 20 obtained every time obtains the first air pressure detection herein
The current gas pressure in the detection bucket 20 that device 40 detects, the atmospheric gas pressure equally obtained every time each mean acquisition described second
The current atmospheric air pressure that pressure test device 41 detects.
In the present solution, it is having the same to be preferably provided with first pressure test device 40, the second pressure test device 41
Working method illustrates by taking the course of work of the first pressure test device 40 as an example herein.The control module 50 issues control letter
Number, air pressure detection is carried out to control the first pressure test device 40, according to the work side of selected first pneumatic shuttle
Formula is different, and first pressure test device 40, which can be, is carried out continuously air pressure detection, can also be spaced and carry out air pressure detection.Institute
The air pressure that stating the first pressure test device 40 will test is converted into corresponding electric signal.The main control module can be obtained directly
Take current gas pressure in the detection bucket 20 detected by first pressure test device 40 as in step S10
Air pressure in the detection bucket 20, directly acquire current atmospheric air pressure detected by second pressure test device 41 using as
The atmospheric gas pressure in step S10.In the present solution, in order to reduce by first pressure test device 40, the second air pressure detection
The interference that is subject in carrying out air pressure detection of device 41, and a possibility that cause testing result inaccurate, in the present solution, by making
The air pressure in detection bucket 20 in the step S10, atmospheric gas pressure are presented as the average air in the detection bucket 20 in a period
Pressure, Zenith Distance air pressure, so that air pressure detected by first pressure test device 40, the second pressure test device 41
Air pressure and atmospheric gas pressure in enough more accurate reaction detection buckets 20.
Specifically, air pressure and described the in the detection bucket 20 for obtaining the detection of the first pressure test device 40
Two pressure test devices 41 detection atmospheric gas pressure the step of include:
In the first preset duration, the first gas of first pneumatic shuttle detection of the first preset quantity is continuously acquired
Pressure, and continuously acquire the second air pressure of second pneumatic shuttle detection of the second preset quantity；
Processing is averaged to first air pressure of first preset quantity, to obtain gas in the detection bucket 20
Pressure；Processing is averaged to second air pressure of second preset quantity, to obtain the atmospheric gas pressure.
Here, first air pressure is in the detection bucket 20 of the detection of the first pressure test device 40 at a certain moment
Current gas pressure, second air pressure is the current atmospheric air pressure that second pressure test device 41 detects at a certain moment.Institute
It states main control module and reads the first air pressure from first pressure test device 40 every first preset duration；According to the time
Sequencing reads altogether the first preset quantity first air pressure.The main control module is every second preset duration
The second air pressure is read from second pressure test device 41；According to the sequencing of time, the second preset quantity is read altogether
A second air pressure.First preset quantity and second preset quantity can be equal, first preset duration and
Second preset duration can be equal, and the main control module can obtain first air pressure and second gas simultaneously
Pressure.
Further, processing is averaged to first air pressure of first preset quantity, to obtain step S10
In the detection bucket 20 in air pressure, processing is averaged to second air pressure of second preset quantity, to obtain
The atmospheric gas pressure in step S10.Handling averagely described herein, which can be, seeks arithmetic mean of instantaneous value, can further lead to
It crosses software program to be filtered multiple first air pressure/second air pressures, filter processing method can be flat using sliding
Averaging method, naturally it is also possible to using the algorithm of other averageds.
Referring to Fig. 6, in the present embodiment, it is described according to air pressure and the atmospheric gas pressure in the detection bucket, it obtains
Liquid level in the liquid reserve tank the following steps are included:
S21 calls the first relation function of the storage；It is Reference pressure that first relation function, which is in atmospheric gas pressure,
Under, detect the relation function of air pressure and liquid level in liquid reserve tank in bucket；
S22, the atmospheric gas pressure that will acquire bring the Reference pressure in first relation function into, calculate the liquid storage
The first liquid level in case；
Air pressure and the relation function of liquid level in liquid reserve tank are in the detection bucket
Wherein, HS waterFor the first liquid level in the liquid reserve tank, PS gasFor the Reference pressure, PS barrelsFor gas in the detection bucket
Pressure, HBucket bottomOpen height is intake to the liquid reserve tank bottom level for the detection bucket, and ρ is the fluid density in the liquid reserve tank, g
For acceleration of gravity.
First relation function be based on atmospheric gas pressure be Reference pressure in the case where obtain, the Reference pressure is
One fixed value.In application scheme, using the current atmospheric gas pressure detected in step slo as the Reference pressure, meter
The first liquid level in the liquid reserve tank is calculated, when required precision is not high, first liquid level be can be used as in the liquid reserve tank
Liquid level.
When air pressure change is Δ P in the detection bucket 20, liquid level variation is Δ H in the corresponding detection bucket 20Bucket, corresponding
Liquid level changes delta H in liquid reserve tank 10Storage, according to law of connected vessels Δ HStorage=Δ P/ (ρ g)+Δ HBucket, ρ is fluid density, and g is gravity
Acceleration.According to general gas law, 20 body height H of bucket is detectedBucketWhen no more than L, Δ HWaterWith Δ HBucketRatio differs greatly, because
The liquid level variation in the detection bucket 20 can be ignored in this；Here L value is not more than 102mm, but not limited to this value.Ignore detection bucket
Liquid level changes in 20, is based on law of connected vessels, the liquid reserve tank 10 is interior equal with the pressure of water surface equal-height position in detection bucket 20, then
Pressure P at the water surface in the detection bucket 20Bucket=PS gas+ρg(HS water-HBucket water),PS gasFor atmospheric gas pressure, HS waterIt is real-time in liquid reserve tank 10
Liquid level, HBucket waterTo detect the real time water level height in bucket 20, and detect water surface H in bucket 20Bucket waterPressure at height is equal to closed gas
Body pressure PGas, according to law of connected vessels, the pressure for detecting identical water level eminence inside and outside bucket 20 is equal, then has PGas=Pg+ρg(HS water-
HBucket water), because ignore detection bucket 20 in liquid level variation (such as when cistern water level change 1mm, detect bucket 20 in SEA LEVEL VARIATION be less than
0.01mm, therefore the liquid level variation in the detection bucket 20 can be ignored), HBucket bottomRoughly equal to HBucket water, then have PS barrels=PS gas+ρg(HS water-
HBucket bottom), HBucket bottomIt is constant, is the height distance that detection 20 water inlet 21 of bucket arrives between 10 bottom of liquid reserve tank.It therefore can
To obtain atmospheric gas pressure, the relation function for detecting air pressure and liquid level in the liquid reserve tank 10 in bucket 20:K=ρ g, therefore the atmospheric gas pressure P that will be detected in S10S gas, gas in the detection bucket 20
Press PS barrels, bring into above-mentioned function and calculated, and then obtain liquid level H in current liquid reserve tank 10S water。
It should be noted that general gas law, that is, The Ideal-Gas Equation, ρ V=nRT, ρ refer to the pressure of perfect gas
By force, V is the volume of perfect gas, and n indicates the amount of gaseous matter, and T then indicates the thermodynamic temperature of perfect gas, and R is ideal gas
Body constant, in the use environment of the liquid level detection device, the closed gas and atmosphere in this programme in detection bucket 20 are full
The foot The Ideal-Gas Equation.ρ × s × h=nRT in the detection bucket 20, s are the cross-sectional area of the detection bucket 20, h
It is closed gas pillar height degree.Height of water level is just close to H in liquid reserve tank 10Bucket bottom.Gas atmosphere is equal to atmosphere in 20 body of detection bucket
It presses, at this time PAtmosphere×s×HBucket=nRT when water level increases to H1 in liquid reserve tank 10, detects liquid level correspondence in bucket 20 and rises to L1, examine
Surveying closed gas air pressure in bucket 20 is P1, at this time P1×s×(HBucket- L1)=nRT=PAtmosphere×s×HBucket, P1=PAtmosphere+ρg(H1-
L1), according to above formula H1/L1=P1/ (ρ g)/HBucket+ 1, ρ=1000kg/m3, g=9.8N/kg, HBucketWhen no more than 102mm, H1/L1
When >=0.001 × P1+1, P1 value are greater than or equal to 99960 ρ a (1 standard atmospheric pressure is 101325 ρ a), it can be deduced that H1/
L1 is greater than 100, therefore, can ignore L1 changing value in this case.It should be noted that when closed gas in detection bucket 20
When air pressure value is less than 99960, by adjusting HBucketThe ratio of height also adjustable H1/L1, to ignore L1 changing value.
Technical scheme considers the atmospheric gas pressure of real-time change, therefore is calculating liquid level in the liquid reserve tank 10
When, it is more accurate so as to obtain in conjunction with the air pressure in current detection bucket 20 by obtaining current atmospheric gas pressure first
The liquid reserve tank 10 in current level.Further, when carrying out level sensing in liquid reserve tank 10 every time, acquisition is
Current gas pressure in current atmospheric gas pressure, and detection bucket 20, so as to the error of level sensing before effectively eliminating,
The water level in the liquid reserve tank 10 is corrected in time, thus the present invention can effectively improve the accuracy of water level detecting, the application
Technical solution does not need setting initial reference water level point, it is thus possible to the liquid reserve tank 10 suitable for various Inlet and outlet water modes.
Since in above-described embodiment, first relation function is the essence with higher in the case where atmospheric gas pressure is Reference pressure
True property, since the atmospheric gas pressure obtained in step S10 and the Reference pressure may have certain deviation, this
It is described to be closed according to the first of storage in order to obtain the accuracy of level sensing in the more accurate liquid reserve tank 10 in scheme
It is function, calculates further comprising the steps of after the first liquid level in the liquid reserve tank:
S23 is calculated in the presently described liquid storage 10 casees according to the second relation function and first liquid level is stored
The second liquid level.
Second relation function be include liquid level in the liquid reserve tank 10, the Reference pressure, detection bucket in 20 air pressures
With the corresponding relationship function between detection 20 inside dimension of bucket.
Second relation function is correction function, for further being corrected to the first liquid level in the liquid reserve tank 10, with
Obtain the second liquid level in the more accurate liquid reserve tank 10.
In one embodiment, second relation function are as follows:
Wherein, HN waterFor the second liquid level in the liquid reserve tank, HS waterFor first liquid level, PS barrelsFor gas in the detection bucket
Pressure, PS gasFor the Reference pressure, HBucketIt is the maximum path length for detecting liquid level variation in staving.
When the detection bucket 20 is column construction, the HBucketFor the water inlet for detecting bucket 20 to the detection bucket 20
The height distance of inner top, when the detection bucket 20 is U-shaped structure, U-shaped detection bucket 20 has the first pipe arm and the
Two pipe arms, wherein the bottom end of the first pipe arm is water inlet, the bottom end seal of the second pipe arm, the HBucketFor it is described detection bucket 20 into
The distance of the U-shaped channel in bucket 20 to the bottom end of the second pipe arm is detected along the U-shaped in the mouth of a river.
In another embodiment, second relation function are as follows:
Wherein, HN waterFor the second liquid level in the liquid reserve tank, HS waterFor first liquid level, PS barrelsFor gas in the detection bucket
Pressure, PS gasFor the Reference pressure, PO gasIt is that liquid level reaches corresponding described the at the time of the detection bucket bung hole in liquid reserve tank
The atmospheric pressure value of two baroceptors detection, HBucketIt is the maximum path length for detecting liquid level variation in staving
In the present embodiment, before calling second relation function, it is thus necessary to determine that the PO gasValue, the PO gasObtain
Take method the following steps are included:
It is preset when the absolute value of the difference of air pressure and the atmospheric gas pressure in the detection bucket 20 is greater than or equal to first
Value, and the absolute value of the last atmospheric gas pressure difference obtained to the air pressure in the detection bucket 20 with the last time obtained is less than
Or when being equal to the second preset value, save presently described atmospheric gas pressure.
The atmospheric gas pressure is at the time of being liquid level arrival detection 20 bung hole of bucket in liquid reserve tank corresponding described second
The air pressure P of baroceptor detectionO gas。
Technical solution of the present invention can be fast after obtaining in the detection bucket 20 in step slo after air pressure and atmospheric gas pressure
Fast ground obtains the first liquid level in the liquid reserve tank 10 according to the first relation function, therefore effectively raises the speed of detection,
And then it is based on the second relation function again, and further obtained first liquid level is further corrected, it is more smart to obtain
The second liquid level in the true liquid reserve tank 10, therefore the detection fast speed of technical solution of the present invention, and can guarantee to detect
As a result accuracy.
Air pressure in the detection bucket 20 for obtaining the detection of the first pressure test device 40 based on the above embodiment, and
Before the step of atmospheric gas pressure that second pressure test device 50 detects further include:
Receive the instruction that starting detects liquid level in the liquid reserve tank 10.
The instruction that the starting detects liquid level in the liquid reserve tank 10 can be by remote controler, keypad, cell phone application, language
The transmissions such as sound module/setting are also possible to meet acquisition reference level function described in automatic trigger after condition.It is corresponding, institute
Stating liquid level detection device further includes the human-computer interaction module 60 being electrically connected with the control module 50；The human-computer interaction module 60
Including one of push-button unit, remote control unit, cell phone application, voice module or a variety of.The push-button unit, remote control unit, hand
The physical circuit setting of machine APP, voice module can refer to the prior art, and details are not described herein.
The liquid reserve tank 10 of reference level acquisition device described in this programme, the shape for detecting bucket 20 can be arbitrary shape,
In one embodiment, the detection bucket 20 is in U-shape, and the U-shaped detection bucket 20 has the first pipe arm and the second pipe arm, wherein first
The bottom end of pipe arm is water inlet, the bottom end seal of the second pipe arm.In another embodiment, the detection bucket 20 is in the form of a column, described
Water inlet 21 is opened in 20 bottom of detection bucket and/or side, and the top of the detection bucket 20 is sealing, specifically, institute
Stating detection bucket 20 includes that staving and sealing cover close sealing block 11 at the top of the staving, first pressure test device 40
On the sealing block 11 or on the staving.Further, the sealing block 11, which is equipped with, supplies the pressure test device
The mounting hole 12 of installation, the pressure test device further include the sealing for connecting the pressure test device Yu the sealing block 11
Part.The sealing element can be sealing ring, and the detector of the pressure test device extends to the inspection from the mounting hole 12
It surveys inside bucket 20.The sealing ring is also used to for the pressure test device being connected on the sealing block 11, therefore this programme
Encapsulation process can be efficiently reduced.
The reference level acquisition device further includes support frame 30, and the detection bucket 20 is connect with the crossbeam, and described
Crossbeam is equipped with the wire casing accommodated for the conducting wire of the pressure test device.Further, support frame as described above 30 is located at the inspection
The upside of bucket 20 is surveyed, the detection bucket 20 is connect by card slot or sliding slot with support frame as described above 30.Therefore technical solution of the present invention
Reference level acquisition device installation site it is flexible, and cabling is convenient, convenient for being integrated in other equipment.
In the present solution, as can be with the current level in liquid reserve tank 10 described in real-time detection, and do not need to carry out initial liquid
Bit correction, therefore it is suitable for the water tank of various Inlet and outlet water modes.The water inlet and draining of the liquid reserve tank 10 can be grasped manually
Make, further, in order to accurately control inflow and displacement, in the application, the liquid reserve tank 10 have water inlet 13 and/or
Discharge outlet, and the liquid reserve tank 10 has the water inlet line connecting with the water inlet 13, and/or the draining connecting with discharge outlet
Pipeline.The water inlet 13 can be used as water outlet, can also be separately provided with the water outlet.The water inlet 13 can be with
It is opened in the side or bottom of the liquid reserve tank 10, the water outlet is preferably opened in the bottom of the liquid reserve tank 10.The ginseng
Examining liquid level acquisition device further includes the water inlet switch element for controlling the water inlet line and opening/closing；And/or the control draining
The drainage switch element that pipeline opens/closes.The water inlet switch element and the drainage switch element can be solenoid valve (packet
Include inlet water solenoid valve, drain solenoid valve), the solenoid valve is electrically connected with the control module 50, in the control module 50
Control under, opened/closed with controlling the water inlet line and/or drainage pipeline, with realize to the water tank carry out water filling or
It discharges water.
The present invention also proposes a kind of air conditioner, has the reference level acquisition device in the air conditioner；The sky
Adjusting device can be on-hook, cabinet-type air conditioner, ceiling machine, window machine, movable air conditioner, embedded type air conditioner etc..Those skilled in the art can manage
Solution, the air conditioner have heat exchanger, in one embodiment, the water inlet line of the reference level acquisition device with it is described
Heat exchanger connection, to receive the condensed water of heat exchanger, the liquid reserve tank 10 can be used as the drip tray of the air conditioner；Another
In embodiment, the water inlet line of the reference level acquisition device is for the water source connection outside the air conditioner.It is described to refer to liquid
The control module 50 of position acquisition device can be the master control borad of the air conditioner.
The air conditioner obtains the liquid level in the liquid reserve tank 10, and the liquid level in the liquid reserve tank 10 reaches
When to preset liquid level, the drain solenoid valve that the control module 50 controls the liquid reserve tank 10 is opened, described in utilizing
Water in liquid reserve tank 10 will accumulate in drip tray, and the dust on the components such as drainpipe, filter screen, residue is rinsed, with reality
Clean effect now is carried out to air conditioner.In another embodiment, the air conditioner includes atomizer, the atomizer with it is described
Water tank connection, to be atomized to the liquid in the water tank.The specific structure of the atomizer is referred to existing skill
Art, details are not described herein, and the atomizer is by being atomized the liquid in the water tank, so that the air conditioner has
Humidification function.
The present invention also proposes a kind of computer readable storage medium, is stored with liquid level on the computer readable storage medium
The step of detection program, the level sensing program realizes the liquid-level detecting method when being executed by processor.The liquid level inspection
The specific steps of survey method are referring to above-described embodiment, and details are not described herein.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (15)
1. a kind of liquid-level detecting method, which is characterized in that the liquid-level detecting method is used for liquid level detection device, the liquid level inspection
Surveying device includes liquid reserve tank, and detection bucket, and the water inlet of the detection bucket is connected to the liquid reserve tank internal cavity, so that institute
It states detection bucket and the liquid reserve tank forms linker, be equipped with the first pressure test device, the level sensing in the detection bucket
Environment where device is equipped with the second pressure test device, the liquid-level detecting method the following steps are included:
Obtain what air pressure and second pressure test device in the detection bucket of the first pressure test device detection detected
Atmospheric gas pressure；
According to air pressure and the atmospheric gas pressure in the detection bucket, liquid level in the liquid reserve tank is obtained.
2. liquid-level detecting method as described in claim 1, which is characterized in that described to obtain what the first pressure test device detected
The step of atmospheric gas pressure of air pressure and second pressure test device detection, includes: in the detection bucket
In the first preset duration, the first air pressure of first pneumatic shuttle detection of the first preset quantity is continuously acquired, and
Continuously acquire the second air pressure of second pneumatic shuttle detection of the second preset quantity；
Processing is averaged to first air pressure of first preset quantity, to obtain air pressure in the detection bucket；It is right
Second air pressure of second preset quantity averages processing, to obtain the atmospheric gas pressure.
3. liquid-level detecting method as described in claim 1, which is characterized in that described to obtain what the first pressure test device detected
Before the step of atmospheric gas pressure that air pressure and second pressure test device detect in the detection bucket further include:
Receive the instruction that starting detects liquid level in the liquid reserve tank.
4. liquid-level detecting method as described in claim 1, which is characterized in that described according to air pressure and institute in the detection bucket
State atmospheric gas pressure, obtain liquid level in the liquid reserve tank the following steps are included:
Call the first relation function of the storage；First relation function is the detection in the case where atmospheric gas pressure is Reference pressure
The relation function of air pressure and liquid level in liquid reserve tank in bucket；
The atmospheric gas pressure that will acquire calculates in presently described liquid reserve tank as the Reference pressure in first relation function
The first liquid level；
Wherein, first relation function are as follows:
Wherein, HS waterFor the first liquid level in the liquid reserve tank, PS gasFor the Reference pressure, PS barrelsFor air pressure in the detection bucket,
HBucket bottomOpen height is intake to the liquid reserve tank bottom level for the detection bucket, and ρ is the fluid density in the liquid reserve tank, and g attaches most importance to
Power acceleration.
5. liquid-level detecting method as claimed in claim 4, which is characterized in that the atmospheric gas pressure that will acquire is as institute
The Reference pressure in the first relation function is stated, is calculated further comprising the steps of after the first liquid level in the liquid reserve tank:
According to the second relation function and first liquid level is stored, the second liquid level in presently described liquid reserve tank is calculated；
Second relation function be include liquid level in the liquid reserve tank, the Reference pressure, air pressure and the inspection in detection bucket
Survey the corresponding relationship function between bucket inside dimension.
6. liquid-level detecting method as claimed in claim 5, which is characterized in that second relation function are as follows:
Wherein, HN waterFor the second liquid level in the liquid reserve tank, HS waterFor first liquid level, PS barrelsFor air pressure in the detection bucket, PS gas
For the Reference pressure, HBucketIt is the maximum path length for detecting liquid level variation in staving.
7. liquid-level detecting method as claimed in claim 6, which is characterized in that second relation function are as follows:
Wherein, HN waterFor the second liquid level in the liquid reserve tank, HS waterFor first liquid level, PS barrelsFor air pressure in the detection bucket, PS gas
For the Reference pressure, PO gasIt is that liquid level reaches second gas corresponding at the time of the detection bucket bung hole in liquid reserve tank
The atmospheric pressure value of pressure sensor detection, HBucketIt is the maximum path length for detecting liquid level variation in staving.
8. a kind of liquid level detection device characterized by comprising
Liquid reserve tank has the cavity for accommodating liquid；
Bucket is detected, there is the water inlet being connected to the cavity, the detection bucket and the liquid reserve tank form linker；
First pressure test device is set in the detection bucket, for detecting air pressure in the detection bucket；
Second pressure test device, the atmospheric gas pressure for environment where detecting the liquid level detection device；
Control module, the control module are electrically connected with first pressure test device, the second pressure test device；The control
Molding block includes memory, processor and is stored in the level sensing journey that can be run on the memory and on the processor
Sequence, the level sensing program realize level sensing side as described in any one of claim 1 to 7 when being executed by the processor
The step of method.
9. liquid level detection device as claimed in claim 8, which is characterized in that the detection bucket is in the form of a column, and the water inlet is opened
Set on the detection bucket bottom and/or side.
10. liquid level detection device as claimed in claim 8, which is characterized in that the detection bucket includes staving and sealing cover
Close the sealing block at the top of the staving；
The pressure test device is set on the sealing block or on the staving.
11. liquid level detection device as claimed in claim 8, which is characterized in that the liquid level detection device further includes support frame,
The detection bucket is connect with the crossbeam, and the crossbeam is equipped with the wire casing accommodated for the conducting wire of the pressure test device.
12. liquid level detection device as claimed in claim 8, which is characterized in that the liquid level detection device further include with it is described
The human-computer interaction module of control module electrical connection；
The human-computer interaction module includes one of push-button unit, remote control unit, cell phone application, voice module or a variety of.
13. a kind of air conditioner, which is characterized in that have the liquid as described in claim 8 to 12 any one in the air conditioner
Level detecting apparatus；
The liquid level detection device has the pipeline being connected to the cavity；
The pipeline of the liquid level detection device is connect with the heat exchanger, with receive heat exchanger condensed water and/or the liquid level
The pipeline of detection device is for the water source connection outside the air conditioner.
14. air conditioner as claimed in claim 13, which is characterized in that the air conditioner includes atomizer, the atomizer with
The liquid reserve tank connection, to be atomized to the liquid in the liquid reserve tank.
15. a kind of computer readable storage medium, which is characterized in that be stored with liquid level inspection on the computer readable storage medium
Ranging sequence, the level sensing program realize liquid level inspection as described in any one of claim 1 to 7 when being executed by the processor
The step of survey method.
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| CN109870213B (en) | 2020-07-03 |
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