CN105203602B - Kitchen ventilator and its soil level detection device and method - Google Patents
Kitchen ventilator and its soil level detection device and method Download PDFInfo
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- CN105203602B CN105203602B CN201510672980.4A CN201510672980A CN105203602B CN 105203602 B CN105203602 B CN 105203602B CN 201510672980 A CN201510672980 A CN 201510672980A CN 105203602 B CN105203602 B CN 105203602B
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Abstract
The invention discloses a kind of soil level detection device of kitchen ventilator, including：Capacitive detection module, the first input end of capacitive detection module are connected with metal screen, and the second input terminal of capacitive detection module is connected with metal oil guide groove, and capacitive detection module is used to detect the capacitance between metal screen and metal oil guide groove；Control module, control module are connected with the output terminal of capacitive detection module, and control module judges the soil level of kitchen ventilator according to capacitance.The detection device can accurately obtain the soil level of kitchen ventilator, and user is prompted when greasy dirt is more, so that user in time can clean greasy dirt, and it is simple and reliable, small, cost is low, be readily integrated into kitchen ventilator.The invention also discloses the soil level detection method of a kind of kitchen ventilator and a kind of kitchen ventilator.
Description
Technical field
The present invention relates to household electrical appliance technical field, soil level detection device, one kind of more particularly to a kind of kitchen ventilator
The soil level detection method of kitchen ventilator and a kind of kitchen ventilator.
Background technology
At present, due to kitchen ventilator can not accurate judgement metal screen soil level so that user cannot be in time to metal
Strainer and metal oil guide groove are cleaned, so as to influence the using effect of complete machine and the health in kitchen.
In correlation technique, the stained thing of metal surface is irradiated by a LED light containing ultraviolet light wave, while pass through measurement
The intensity of photodiode measurement UV fluorescence in instrument probe, UV fluorescence more strong representation pollution level is more serious, otherwise more clear
It is clean.The cleannes of metal surface can be detected by the above method, but used measuring instrument is of high cost, volume is big, it is more
For detection device.
The content of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technological deficiency.For this reason, it is an object of the present invention to
It is proposed a kind of soil level detection device of kitchen ventilator, can accurately be sentenced by the metal screen in kitchen ventilator and metal oil guide groove
The soil level of oil-break smoke machine, and it is simple and reliable, cost is low.
It is another object of the present invention to propose a kind of kitchen ventilator.A further object of the present invention is to propose a kind of oil
The soil level detection method of smoke machine.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of soil level detection device of kitchen ventilator,
The kitchen ventilator, which includes metal screen and metal oil guide groove, described device, to be included：Capacitive detection module, the capacitive detection module
First input end be connected with the metal screen, the second input terminal of the capacitive detection module and the metal oil guide groove phase
Even, the capacitive detection module is used to detect the capacitance between the metal screen and the metal oil guide groove；Control module,
The control module is connected with the output terminal of the capacitive detection module, and the control module is according to judging the capacitance
The soil level of kitchen ventilator.
The soil level detection device of kitchen ventilator according to embodiments of the present invention, detects metal by capacitive detection module and filters
Capacitance between net and metal oil guide groove, and the soil level of kitchen ventilator is judged by control module according to capacitance, so that
Under conditions of the metal screen in making full use of kitchen ventilator and metal oil guide groove, complete to the accurate of the soil level of kitchen ventilator
Judge, and it is simple and reliable, small, cost is low, be readily integrated into kitchen ventilator.
According to one embodiment of present invention, the soil level detection device of above-mentioned kitchen ventilator, further includes：Power supply mould
Block, the power module are used to power to the soil level detection device.
According to one embodiment of present invention, the control module is judging the oil of the kitchen ventilator according to the capacitance
During dirty degree, wherein, if initial capacitance value between the capacitance and the metal screen and the metal oil guide groove it
Between capacitance value difference be more than predetermined threshold value, then to the kitchen ventilator carry out clean prompting.
Specifically, the soil level detection device of above-mentioned kitchen ventilator, further includes：User's adjustment module, user's tune
Section module is connected with the control module, and user is adjusted the predetermined threshold value by user's adjustment module.
Specifically, the soil level detection device of above-mentioned kitchen ventilator, further includes：Reminding module, the reminding module with
The control module is connected, and the control module carries out clean prompting by the reminding module to the kitchen ventilator.
Further, the reminding module includes display unit and voice unit.
To reach above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of kitchen ventilator, it includes above-mentioned oil smoke
The soil level detection device of machine.
The kitchen ventilator of the embodiment of the present invention is capable of the oil of accurate judgement kitchen ventilator by above-mentioned soil level detection device
Dirty degree, and user is prompted when greasy dirt is more, so that user in time can clean greasy dirt, so as to improve
The using effect of complete machine and the health in kitchen, and reliability is high, cost is low.
To reach above-mentioned purpose, another aspect of the invention embodiment proposes a kind of soil level detection side of kitchen ventilator
Method, the kitchen ventilator include metal screen and metal oil guide groove, the described method comprises the following steps：Detect the metal screen with
Capacitance between the metal oil guide groove；And the soil level of the kitchen ventilator is judged according to the capacitance.
The soil level detection method of kitchen ventilator according to embodiments of the present invention, detects metal screen and metal Oil Guide first
Capacitance between groove, then judges the soil level of kitchen ventilator according to capacitance, so that the gold in kitchen ventilator is made full use of
Under conditions of belonging to strainer and metal oil guide groove, the accurate judgement to the soil level of kitchen ventilator is completed, and method is simple and reliable.
According to one embodiment of present invention, the soil level detection method of above-mentioned kitchen ventilator, further includes：It is if described
The capacitance value difference between initial capacitance value between capacitance and the metal screen and the metal oil guide groove is more than default threshold
Value, then carry out clean prompting to the kitchen ventilator.
Specifically, the soil level detection method of above-mentioned kitchen ventilator, further includes：The predetermined threshold value is adjusted.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the structure diagram according to the soil level detection device of the kitchen ventilator of one embodiment of the invention；
Fig. 2 is the structure diagram according to the soil level detection device of the kitchen ventilator of another embodiment of the present invention；
Fig. 3 is the structure diagram according to the soil level detection device of the kitchen ventilator of another embodiment of the invention；
Fig. 4 is the flow chart according to the soil level detection method of the kitchen ventilator of the embodiment of the present invention；
Fig. 5 is the flow chart according to the soil level detection method of the kitchen ventilator of one embodiment of the invention.
Embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter
Change disclosure of the invention, hereinafter the component and setting of specific examples are described.Certainly, they are merely examples, and
It is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy
It is the relation between itself not indicating discussed various embodiments and/or setting for purposes of simplicity and clarity again.This
Outside, the present invention provides various specific techniques and material examples, but those of ordinary skill in the art may realize that
The applicable property of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it
" on " structure can include the first and second features and be formed as the embodiment that directly contacts, other feature shape can also be included
Into the embodiment between the first and second features, such first and second feature may not be direct contact.
In the description of the present invention, it is necessary to explanation, unless otherwise prescribed and limit, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be the connection inside mechanical connection or electrical connection or two elements, can
To be to be connected directly, can also be indirectly connected by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
With reference to the accompanying drawings come describe the soil level detection device of kitchen ventilator of proposition of the embodiment of the present invention, kitchen ventilator with
And the soil level detection method of kitchen ventilator.
Fig. 1 be according to the structure diagram of the soil level detection device of the kitchen ventilator of one embodiment of the invention, wherein,
Kitchen ventilator includes metal screen 10 and metal oil guide groove 20.
As shown in Figure 1, the soil level detection device of the kitchen ventilator includes：Capacitive detection module 30 and control module 40,
Wherein, the first input end of capacitive detection module 30 is connected with metal screen 10, the second input terminal of capacitive detection module 30 with
Metal oil guide groove 20 is connected, and capacitive detection module 30 is used to detect the capacitance between metal screen 10 and metal oil guide groove 20,
Control module 40 is connected with the output terminal of capacitive detection module 30, and control module 40 judges the greasy dirt journey of kitchen ventilator according to capacitance
Degree.
In general, all have metal screen 10 and metal oil guide groove 20 in kitchen ventilator, and from metal screen 10 and metal Oil Guide
The setting position of groove 20, which can be seen that, can form a plane-parallel capacitor between metal screen 10 and metal oil guide groove 20,
And in an embodiment of the present invention, it exactly make use of what existing metal screen 10 and metal oil guide groove 20 in kitchen ventilator were formed
Plane-parallel capacitor is detected the soil level of kitchen ventilator.
Specifically, an electrode of the metal screen 10 as plane-parallel capacitor, inputs with capacitive detection module 30 first
End is connected, another electrode of metal oil guide groove 20 as plane-parallel capacitor, the second input terminal with capacitive detection module 30
It is connected, in addition insulating materials 50 is also respectively provided with the both ends of 20 relative area of metal screen 10 and metal oil guide groove, with right
Metal screen 10 and metal oil guide groove 20 are isolated, and ensure the safety of detection.After kitchen ventilator works on power, capacitance detecting mould
Block 30 detects the capacitance between metal screen 10 and metal oil guide groove 20, and testing result is transmitted to control module 40, by
The dielectric constant of material between capacitance and metal screen 10 and metal oil guide groove 20 is related, and therefore, control module 40 can
To judge the soil level of kitchen ventilator according to detection capacitance.
Specifically, the relation between the capacitance of plane-parallel capacitor and the dielectric constant of material, such as following formula (1)
It is shown：
C=ε S/4 π kd (1)
Wherein, C be plane-parallel capacitor capacitance, ε be material dielectric constant, S be two-plate facing area, k
For electrostatic force constant, d is the distance between two-plate.
As shown from the above formula, after the distance between the facing area between two-plate and two-plate determine, parallel-plate
The capacitance of capacitor is only related with the dielectric constant of material, and proportional relation, therefore, is led in metal screen 10 and metal
After the location determination of oil groove 20, the capacitance between metal screen 10 and metal oil guide groove 20 is only led with metal screen 10 and metal
Material between oil groove 20 is related.After kitchen ventilator runs a period of time, greasy dirt will be attached to metal screen 10 and metal Oil Guide
The surface of groove 20, changes equivalent to the material between metal screen 10 and metal oil guide groove 20, due to 10 He of metal screen
Material between metal oil guide groove 20 changes, therefore the dielectric constant between metal screen 10 and metal oil guide groove 20 is also sent out
Changing, so that capacitance changes between metal screen 10 and metal oil guide groove 20, control module 40 is according to change
Capacitance can judge the soil level of kitchen ventilator.
To sum up, the embodiment of the present invention takes full advantage of the existing metal structure of kitchen ventilator, and it is difficult to solve assembling well
Topic, can not only accurately detect the soil level of kitchen ventilator, and it is simple and reliable, cost is low.
According to one embodiment of present invention, as shown in Fig. 2, the soil level detection device of above-mentioned kitchen ventilator further includes
Power module 100, power module 100 are used to power to greasy dirt degree detection device.
It should be noted that in an embodiment of the present invention, power module 100 can give metal screen 10 and metal Oil Guide
Groove 20 is powered, and can not also give both power supplies.Wherein, if power module 100 does not give metal screen 10 and metal oil guide groove 20
Power supply, the then capacitance that capacitive detection module 30 detects are capacitance detecting value when being not powered on；If power module 100 gives metal
Strainer 10 and metal oil guide groove 20 are powered, then the capacitance detecting value when capacitance that capacitive detection module 30 detects is is powered.Need
It is noted that when power module 100 is not powered to metal screen 10 and metal oil guide groove 20, can be examined at this time by capacitance
The builtin voltage for surveying module 30 is detected capacitance.
In short, the embodiment of the present invention make use of simplest capacitance determining method to complete to metal screen 10 and metal
The measurement of capacitance between oil guide groove 20, so that control module 40 can be according to the capacitance of detection come accurate judgement oil
The pollution level of smoke machine, and it is simple and reliable, cost is low.
According to one embodiment of present invention, control module 40 is when judging the soil level of kitchen ventilator according to capacitance,
Wherein, if the capacitance value difference between initial capacitance value between capacitance and metal screen 10 and metal oil guide groove 20 be more than it is pre-
If threshold value, then clean prompting is carried out to kitchen ventilator.Wherein, predetermined threshold value can be set according to actual conditions.
Specifically, when kitchen ventilator initial power-on works, capacitive detection module 30 detects metal screen 10 and metal is led
Capacitance between oil groove 20, and control module 40 is transmitted to, after control module 40 receives initial capacitance value, deposited
Storage is using as initial capacitance value, then capacitive detection module 30 continues to detect the electricity between metal screen 10 and metal oil guide groove 20
Capacitance is simultaneously transmitted to control module 40, control module 40 by the capacitance again read off compared with initial capacitance value, if
Capacitive differential between capacitance and initial capacitance value is more than predetermined threshold value, shows 20 greasy dirt of metal screen 10 and metal oil guide groove
Degree is than more serious, then control module 40 carries out clean prompting to kitchen ventilator；If the electricity between capacitance and initial capacitance value
Tolerance is less than or equal to predetermined threshold value, then shows that metal screen 10 and 20 soil level ratio of metal oil guide groove are relatively low, this time control
Molding block 40 does not carry out clean prompting to kitchen ventilator.Further, the course of work being detected to the soil level of kitchen ventilator
As shown in Figure 5.
It is understood that when initial capacitance value can be kitchen ventilator energization for the first time, metal screen 10 and metal Oil Guide
Capacitance between groove 20, or after user cleans kitchen ventilator, first be powered when metal screen 10 and metal lead
Capacitance between oil groove 20, can also be electricity when being powered for the first time after replacing metal screen 10 and/or metal oil guide groove 20
Capacitance.
According to one embodiment of present invention, as shown in figure 3, the soil level detection device of above-mentioned kitchen ventilator further includes
User's adjustment module 60, user's adjustment module 60 are connected with control module 40, and user is by user's adjustment module 60 to presetting threshold
Value is adjusted.
It can facilitate user that predetermined threshold value is adjusted it is understood that increasing user's adjustment module 60 here, with
Just meet the needs of different users.For example, cleannes are required with higher user, be able to will be preset by user's adjustment module 60
Threshold value is turned down；To cleannes requirement than relatively low user, predetermined threshold value can be heightened by user's adjustment module 60.Certainly,
Initial capacitance value can also be adjusted by user's adjustment module 60 to meet requirement of the different user to cleannes.
According to one embodiment of present invention, as shown in figure 3, the soil level detection device of above-mentioned kitchen ventilator is also wrapped
Include：Reminding module 70, reminding module 70 are connected with control module 40, and control module 40 carries out kitchen ventilator by reminding module 70
Clean prompting.Wherein, reminding module 70 includes display unit 71 and voice unit 72.
Specifically, judge that the capacitive differential between capacitance and initial capacitance value is more than predetermined threshold value in control module 40
When, control module 40 sends clean prompting to display unit 71 and/or voice unit 72, to pass through display unit 71 and/or language
Sound unit 72 prompts user.Wherein, display unit 71 can be LED light, display screen etc., and voice unit 72 can be bee
Ring device etc..Alternatively, it is also possible to be shown by display unit 71 to current soil level, for example, can by numerical value or
Percents etc. are shown, so that user can understand the soil level of current kitchen ventilator in real time.
Further, a specific example according to the present invention, after kitchen ventilator powers on, kitchen ventilator enters standby shape
State, control module 40 obtained by capacitive detection module 30 and store by metal screen 10 formed with metal oil guide groove 20 it is parallel
The initial capacitance value of plate capacitor.Then the operational taps of user setting kitchen ventilator and start kitchen ventilator and start pump drainage oil smoke, oil
Cigarette is being attached to surface by having amount of grease when metal oil guide groove 20 and metal screen 10 so that by metal screen 10 and gold
Belong to the capacitance increase for the plane-parallel capacitor that oil guide groove 20 forms.During kitchen ventilator pump drainage oil smoke, control module 40 is logical
Cross capacitive detection module 30 and obtain the capacitance of plane-parallel capacitor in real time, and compared with initial capacitance value, work as capacitance
When capacitive differential between initial capacitance value is more than predetermined threshold value, represent that kitchen ventilator is seriously polluted, control module 40 passes through LED
Lamp or buzzer carry out clean prompting, and user can be cleaned according to clean prompting, thus improve complete machine using effect and
The health in kitchen.
In conclusion the soil level detection device of kitchen ventilator according to embodiments of the present invention, passes through capacitive detection module
The capacitance between metal screen and metal oil guide groove is detected, and judges the greasy dirt of kitchen ventilator according to capacitance by control module
Degree, so that under conditions of the metal screen in making full use of kitchen ventilator and metal oil guide groove, completes the greasy dirt to kitchen ventilator
The accurate judgement of degree, and it is simple and reliable, small, cost is low, be readily integrated into kitchen ventilator.
In addition, the embodiment of the present invention also proposed a kind of kitchen ventilator, it includes the soil level inspection of above-mentioned kitchen ventilator
Survey device.
The kitchen ventilator of the embodiment of the present invention is capable of the oil of accurate judgement kitchen ventilator by above-mentioned soil level detection device
Dirty degree, and user is prompted when greasy dirt is more, so that user in time can clean greasy dirt, so as to improve
The using effect of complete machine and the health in kitchen, and reliability is high, cost is low.
Fig. 4 be according to the flow chart of the soil level detection method of the kitchen ventilator of the embodiment of the present invention, wherein, kitchen ventilator bag
Include metal screen and metal oil guide groove.As shown in figure 4, the soil level detection method of the kitchen ventilator comprises the following steps：
S1, detects the capacitance between metal screen and metal oil guide groove.
S2, the soil level of kitchen ventilator is judged according to capacitance.
In general, all have metal screen and metal oil guide groove in kitchen ventilator, and setting from metal screen and metal oil guide groove
Seated position, which can be seen that, can form a plane-parallel capacitor between metal screen and metal oil guide groove, and the present invention's
In embodiment, the plane-parallel capacitor that existing metal screen and metal oil guide groove is formed in kitchen ventilator exactly make use of to come pair
The soil level of kitchen ventilator is detected.
Specifically, an electrode of the metal screen as plane-parallel capacitor, metal oil guide groove is as plane-parallel capacitor
Another electrode, after kitchen ventilator works on power, can by metal screen and metal oil guide groove apply predeterminated voltage come
The capacitance between metal screen and metal oil guide groove is detected, i.e., is completed using simplest capacitance determining method to metal screen
The measurement of capacitance between metal oil guide groove, due to Jie of the material between capacitance and metal screen and metal oil guide groove
Electric constant is related, thus can according to the capacitance of detection come the pollution level of accurate judgement kitchen ventilator, and it is simple and reliable, into
This is low.
Specifically, the relation between the capacitance of plane-parallel capacitor and the dielectric constant of material, such as above-mentioned formula (1)
It is shown.As shown from the above formula, after the distance between the facing area between two-plate and two-plate determine, parallel plate capacitor
The capacitance of device is only related with the dielectric constant of material, and proportional relation, therefore, in metal screen and metal oil guide groove
After location determination, material of the capacitance only between metal screen and metal oil guide groove between metal screen and metal oil guide groove
It is related.After kitchen ventilator runs a period of time, greasy dirt will be attached to the surface of metal screen and metal oil guide groove, equivalent to metal
Material between strainer and metal oil guide groove changes, since the material between metal screen and metal oil guide groove becomes
Change, therefore the dielectric constant between metal screen and metal oil guide groove also changes, so that metal screen and metal are led
Capacitance changes between oil groove, and the soil level of kitchen ventilator can be judged according to the capacitance of change.
To sum up, the embodiment of the present invention, which takes full advantage of the existing metal structure of kitchen ventilator, realizes the greasy dirt journey of kitchen ventilator
The accurate detection of degree, and test method is simple and reliable.
According to one embodiment of present invention, the soil level detection method of above-mentioned kitchen ventilator further includes：If capacitance
Capacitance value difference between value and the initial capacitance value between metal screen and metal oil guide groove is more than predetermined threshold value, then to kitchen ventilator
Carry out clean prompting.
Specifically, when kitchen ventilator initial power-on works, the capacitance between metal screen and metal oil guide groove is detected,
And stored as initial capacitance value, to then proceed to the capacitance between detection metal screen and metal oil guide groove simultaneously
By the capacitance again read off compared with initial capacitance value, if the capacitive differential between capacitance and initial capacitance value is big
In predetermined threshold value, show that metal screen and metal oil guide groove soil level ratio are more serious, then can pass through LED light, display screen, bee
The device etc. that rings carries out clean prompting to kitchen ventilator；If the capacitive differential between capacitance and initial capacitance value is less than or equal to default
Threshold value, then show that metal screen and metal oil guide groove soil level ratio are relatively low, does not carry out clean prompting to kitchen ventilator at this time.
It is understood that when initial capacitance value can be kitchen ventilator energization for the first time, metal screen and metal oil guide groove
Between capacitance, or after user cleans kitchen ventilator, first be powered when metal screen and metal oil guide groove it
Between capacitance, can also be capacitance when being powered for the first time after replacing metal screen and/or metal oil guide groove.
Furthermore it is possible to current soil level is shown by LED light, display screen etc., for example, numerical value can be passed through
Or percents etc. are shown, so that user can understand the soil level of current kitchen ventilator in real time.
Specifically, as shown in figure 5, the soil level detection process of kitchen ventilator comprises the following steps：
S101, obtains the capacitance between metal screen and metal oil guide groove.
S102, storing initial capacitance.
S103, kitchen ventilator normal operation, obtains capacitance again.
S104, judges whether capacitance-initial capacitance value is more than predetermined threshold value.If so, perform step S105；If
It is no, perform step S106.
S105, kitchen ventilator is seriously polluted, mark position 1, that is, represents to need to clean.
S106, kitchen ventilator pollute not serious, mark position 0, that is, represent to clean.
S107, stores and shows kitchen ventilator current contamination state.Such as current soil level is prompted or is shown to cleaning.
According to one embodiment of present invention, the soil level detection method of above-mentioned kitchen ventilator further includes：To presetting threshold
Value is adjusted.
It is understood that it is to meet the needs of different users to increase here to the purpose that predetermined threshold value is adjusted.
For example, cleannes are required with higher user, predetermined threshold value can be turned down；, can to cleannes requirement than relatively low user
Predetermined threshold value to be heightened.It is of course also possible to by the way that initial capacitance value is adjusted to meet different user to cleannes
It is required that.
A specific example according to the present invention, after kitchen ventilator powers on, kitchen ventilator enters holding state, obtains at this time
Take and store the initial capacitance value for the plane-parallel capacitor being made of metal screen and metal oil guide groove.Then user setting oil smoke
The operational taps of machine simultaneously start kitchen ventilator and start pump drainage oil smoke, and oil smoke when metal oil guide groove and metal screen by having part
Grease is attached to surface so that the capacitance increase for the plane-parallel capacitor being made of metal screen and metal oil guide groove.In oil
During smoke machine pump drainage oil smoke, the capacitance of plane-parallel capacitor is obtained in real time, and compared with initial capacitance value, works as capacitance
When capacitive differential between value and initial capacitance value is more than predetermined threshold value, represents that kitchen ventilator is seriously polluted, LED can be passed through at this time
Lamp or buzzer carry out clean prompting, and user can be cleaned according to clean prompting, thus improve complete machine using effect and
The health in kitchen.
The soil level detection method of kitchen ventilator according to embodiments of the present invention, detects metal screen and metal Oil Guide first
Capacitance between groove, then judges the soil level of kitchen ventilator according to capacitance, so that the gold in kitchen ventilator is made full use of
Under conditions of belonging to strainer and metal oil guide groove, the accurate judgement to the soil level of kitchen ventilator is completed, and detection method is simple
Reliably.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include
Module, fragment or the portion of the code of the executable instruction of one or more the step of being used for realization specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable
Sequence, including according to involved function by it is basic at the same time in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use
In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring
Connecting portion (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or other are suitable
Medium, because can be for example by carrying out optical scanner to paper or other media, then into edlin, interpretation or if necessary with it
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, have suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries
Suddenly it is that relevant hardware can be instructed to complete by program, the program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
Necessarily refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of changes, modification, replace
And modification, the scope of the present invention is by appended claims and its equivalent limits.
Claims (10)
1. the soil level detection device of a kind of kitchen ventilator, it is characterised in that the kitchen ventilator includes metal screen and metal is led
Oil groove, forms a plane-parallel capacitor between the metal screen and the metal oil guide groove, described device includes：
Capacitive detection module, the first input end of the capacitive detection module are connected with the metal screen, the capacitance detecting
Second input terminal of module is connected with the metal oil guide groove, and the capacitive detection module is used to detect the metal screen and institute
State the capacitance between metal oil guide groove；
Control module, the control module are connected with the output terminal of the capacitive detection module, and the control module is according to
Capacitance judges the soil level of the kitchen ventilator.
2. the soil level detection device of kitchen ventilator as claimed in claim 1, it is characterised in that further include：
Power module, the power module are used to power to the soil level detection device.
3. the soil level detection device of kitchen ventilator as claimed in claim 1 or 2, it is characterised in that the control module exists
When judging the soil level of the kitchen ventilator according to the capacitance, wherein,
If the capacitance between initial capacitance value between the capacitance and the metal screen and the metal oil guide groove
Difference is more than predetermined threshold value, then carries out clean prompting to the kitchen ventilator.
4. the soil level detection device of kitchen ventilator as claimed in claim 3, it is characterised in that further include：
User's adjustment module, user's adjustment module are connected with the control module, and user passes through user's adjustment module
The predetermined threshold value is adjusted.
5. the soil level detection device of kitchen ventilator as claimed in claim 3, it is characterised in that further include：
Reminding module, the reminding module are connected with the control module, and the control module is by the reminding module to institute
State kitchen ventilator and carry out clean prompting.
6. the soil level detection device of kitchen ventilator as claimed in claim 5, it is characterised in that the reminding module includes aobvious
Show unit and voice unit.
A kind of 7. kitchen ventilator, it is characterised in that the soil level inspection including the kitchen ventilator as any one of claim 1-6
Survey device.
8. the soil level detection method of a kind of kitchen ventilator, it is characterised in that the kitchen ventilator includes metal screen and metal is led
Oil groove, forms a plane-parallel capacitor, the described method includes following step between the metal screen and the metal oil guide groove
Suddenly：
Detect the capacitance between the metal screen and the metal oil guide groove；And
The soil level of the kitchen ventilator is judged according to the capacitance.
9. the soil level detection method of kitchen ventilator as claimed in claim 8, it is characterised in that further include：
If the capacitance between initial capacitance value between the capacitance and the metal screen and the metal oil guide groove
Difference is more than predetermined threshold value, then carries out clean prompting to the kitchen ventilator.
10. the soil level detection method of kitchen ventilator as claimed in claim 9, it is characterised in that further include：
The predetermined threshold value is adjusted.
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