CN106510492B - A kind of soy bean milk making machine material intelligent recognition methods - Google Patents
A kind of soy bean milk making machine material intelligent recognition methods Download PDFInfo
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- CN106510492B CN106510492B CN201510924483.9A CN201510924483A CN106510492B CN 106510492 B CN106510492 B CN 106510492B CN 201510924483 A CN201510924483 A CN 201510924483A CN 106510492 B CN106510492 B CN 106510492B
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/044—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the top side
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C11/00—Milk substitutes, e.g. coffee whitener compositions
- A23C11/02—Milk substitutes, e.g. coffee whitener compositions containing at least one non-milk component as source of fats or proteins
- A23C11/10—Milk substitutes, e.g. coffee whitener compositions containing at least one non-milk component as source of fats or proteins containing or not lactose but no other milk components as source of fats, carbohydrates or proteins
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Beans For Foods Or Fodder (AREA)
Abstract
The present invention is a kind of soy bean milk making machine material intelligent recognition methods, the soy bean milk making machine includes the motor for comminuting matter, the heating device that liquid in cup body is heated, and the main control chip to work for controlling the motor and heating device, wherein the soy bean milk making machine is equipped with water quality detecting device, the water quality detecting device will test water quality data and be sent to main control chip, the pulping process of the soy bean milk making machine includes muddy process, the main control chip identifies the material in cup body by analyzing the change of water quality of slurries in the cup body of muddy process front and back, and different pulping programs is executed according to different materials.It is compared accordingly by change of water quality, identifies corresponding material variety and inventory, and the power of motor in pulping program is adjusted by the condition of setting, motor working time etc. reaches intelligent effects on slurry making.Simultaneously according to the Starting mode of different inventory adjustment motors, motor is protected, electrical machinery life is extended, reduces the noise in pulping process.
Description
Technical field
The present invention relates to the control field of household kitchen electric appliance more particularly to a kind of material recognition methods of soy bean milk making machine.
Background technique
As control technology constantly develops, great variety, and more and more intelligentized family are brought to human lives
Front yard electric appliance enters people's lives, and it is horizontal to promote people's lives.And these intelligentized household appliances, why can be realized
Intelligence be due to intelligentized control, for food processor, it is well known that existing household food processor one
As all have the function of heat or crush or have simultaneously heating crush etc..And in order to more intelligentized to food processor
Control, that is, allow food processor that can preferably complete the processing to food material, and it is intelligentized herein during, material sheet
The property of body is an important indicator in control process, especially in the pulping process of soy bean milk making machine, inventory number certainly
The quality for having determined effects on slurry making even determines the safe handling of soy bean milk making machine.
Also there is the method in many food processor for material recognition in the prior art, but some image pickups nothing more than
Or the information of material is known in scanning etc., although this mode can accurately know the various information of material, for beans
For pulp grinder, due to the limitation of product, it is difficult to image or scanning device is mounted in soy bean milk making machine.In addition, there are also a kind of
Using quantitative material packet, to realize the control to material, this identification control mode to material is completely dependent on user's operation,
To the more demanding of user, the intelligence of soy bean milk making machine cannot be embodied.
Summary of the invention
Automatic, intelligence material intelligent recognition methods that technical problem to be solved by the invention is to provide a kind of soy bean milk making machines.
In order to solve the above technical problems, a kind of soy bean milk making machine material intelligent recognition methods of the present invention, the soy bean milk making machine include
For the motor of comminuting matter, the heating device heated to liquid in cup body and for controlling the motor and heating
The main control chip that device works, wherein the soy bean milk making machine is equipped with water quality detecting device, the water quality detecting device will test
Water quality data is sent to main control chip, and the pulping process of the soy bean milk making machine includes muddy process, and the main control chip is by dividing
The change of water quality for analysing slurries in the cup body of muddy process front and back identifies the material in cup body, and is executed according to different materials
Different pulping programs.
Preferably, the muddy process includes standing the slurries t1 time, after the soy bean milk making machine pulping program starting, the master
Again by water quality after water quality Ts, the main control chip waiting t1 that control chip passes through slurries in water quality detecting device detection cup body
Detection device detects the water quality Tm of slurries, and the main control chip carries out analysis identification material according to the variation of Tm and Ts.
Preferably, the muddy process includes heating slurries to temperature Q, described after the soy bean milk making machine pulping program starting
Main control chip passes through the water quality Ts of slurries in water quality detecting device detection cup body, and the main control chip heats the slurries in cup body
Again by the water quality Tm of water quality detecting device detection slurries after to temperature Q, the main control chip is according to the variation of Tm and Ts
Carry out analysis identification material.
Preferably, the muddy process further includes that slurries are carried out with precomminution, after the soy bean milk making machine pulping program starting, institute
Before stating water quality Ts, the main control chip detection water quality Tm of the main control chip by slurries in water quality detecting device detection cup body, institute
It states main control chip and controls the motor and precomminution carried out to the intracorporal material of cup, the main control chip is according to the variation of Tm and Ts
Carry out analysis identification material.
Preferably, the range of speeds of the motor is 4000rpm-8000rpm when precomminution, between when precomminution motor
Having a rest property cycle operation, each motor working time are -10 seconds 3 seconds.
Preferably, the main control chip is according to preset material variety change of water quality threshold range interval, to know cup
The type of pulping materials in body.
Preferably, the main control chip is according to preset inventory change of water quality threshold range interval, to know cup body
Middle pulping materials amount.
Preferably, 120~140 materials of change of water quality increment are dry beans standard volume；Change of water quality increment 140~180
Material is 1.5 times of dry beans standard volumes；180~220 materials of change of water quality increment are 2 times of dry beans standard volumes；Change of water quality increment
300~360 materials are wet beans standard volume；360~420 materials of change of water quality increment are 1.5 times of wet beans standard volumes；Water quality becomes
420~480 materials of quantizer input quantization increment are 2 times of wet beans standard volumes.
Preferably, the soy bean milk making machine pulping program includes crushing stage, and the main control chip timing is filled by water quality detection
The water quality of slurries in detection cup body is set, the main control chip knows the degree of grinding of material in cup body according to water quality value increase tendency
And adjust corresponding electrical machine working mode.
Preferably, after the soy bean milk making machine pulping program starting, the main control chip detects cup body by water quality detecting device
The water quality Ts of interior slurries, the pulping program include the infusion stage, and the main control chip is adjusted according to water quality Ts in the infusion stage
The operating mode of heating device.
It is detected by using electrode sensor as water quality of the water quality detecting device to slurries, slurries is utilized not
The different characteristic of its conductivity in the case where with water quality, so that detection is simple and effective.
By the determination to initial water grade, different water quality is identified, to adjust the infusion in slurrying process
Power and the time, guarantee different quality under the conditions of effects on slurry making, the overflow problem of slurries is effectively reduced.And certain
Under the conditions of detect water quality again, to identify corresponding material variety and inventory, and by setting by comparing accordingly
Power of motor in fixed condition adjustment pulping program, motor working time etc. reach intelligent effects on slurry making.Simultaneously according to not
The Starting mode of same inventory adjustment motor, protects motor, extends electrical machinery life, reduce the noise in pulping process.
The degree of grinding of slurries is identified, by powder by identifying the variation of water quality in total power crushing stage simultaneously
The identification of broken degree, the working time of fuzzy adjustment motor, to guarantee crushing effect.
Detailed description of the invention
Present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is a kind of 1 soybean milk maker structure schematic diagram of embodiment of soy bean milk making machine material intelligent recognition methods of the present invention；
Fig. 2 is a kind of circuit diagram of the embodiment 1 of soy bean milk making machine material intelligent recognition methods of the present invention；
Fig. 3 is a kind of flow diagram of the embodiment 1 of soy bean milk making machine material intelligent recognition methods of the present invention；
Fig. 4 is a kind of flow diagram of the embodiment 2 of soy bean milk making machine material intelligent recognition methods of the present invention；
Fig. 5 is a kind of flow diagram of the embodiment 3 of soy bean milk making machine material intelligent recognition methods of the present invention；
Fig. 6 is a kind of circuit diagram of the embodiment 4 of soy bean milk making machine material intelligent recognition methods of the present invention.
Specific embodiment
Embodiment 1:
The present invention relates to a kind of soy bean milk making machines, as shown in Figure 1, the soy bean milk making machine includes head 1 and cup body 2, the head 1 is detained
It is placed on the cup body 2, the motor 3 for comminuting matter is equipped in the head 1, the cup body is protruded into 3 front end of motor
Portion is equipped with crushing knife tool 4, and the cup body 2 is equipped with the heating device 5 heated to material in cup body.The soy bean milk making machine includes
Control section, the control section include main control chip MCU, and the main control chip MCU controls the motor 3 by control circuit
And heating device 5, the soy bean milk making machine further include for slurries water quality situation in detection cup body water quality will survey device 6, it is described
Main control chip MCU connects water quality detecting device 6 by signal deteching circuit, and the water quality detecting device is to protrude into cup body slurries
First electrode sensor and second electrode sensor, in the present embodiment, the first electrode sensor and it is described second electricity
Pole sensor is arranged on head.The installation center distance of the first electrode sensor and the second electrode sensor is
15mm.The first electrode sensor and the second electrode sensor are the stainless steel cylinder electrode of diameter 1.5mm.At this
In embodiment, the head includes head upper cover and head lower cover, and the first electrode sensor and second electrode sense it
It is arranged on the end face of the head lower cover.It is equipped with control circuit board in the head, carries master on the control circuit board
Control chip, the control circuit of the control motor and the heating device and the signal deteching circuit for detecting water quality, institute
It states first electrode sensor and second electrode sensor and is electrically connected by the signal deteching circuit with main control chip.
Certain first electrode sensor and second sensor can also be arranged in the other positions of soy bean milk making machine, such as cup body
On side wall, and it can also be carried out with other sensors compound.
Since the water quality situation of slurries and its conductivity are there are certain relationship, water quality value is denoted as TDS, and K is its conductivity, then
TDS=(0.55~0.70) * K, can be by detecting the conductivity of slurries to extrapolate corresponding water quality TDS value.Therefore we
Case is the detection detected by conductivity of the detecting electrode to slurries to realize water quality TDS value, and not only detection is accurate, and at
This is lower, and circuit is realized also relatively simple.
The signal deteching circuit is resonance circuit, the resonance circuit and the first electrode sensor and second electrode
Sensor connection, when head is placed on cup body, the first electrode sensor and second electrode sensor pass through in cup body
Slurries connection, thus formed a closed resonance circuit.In the present embodiment, as shown in Fig. 2, the resonance circuit includes
MOS type time base circuit, fixed pattern capacitor C4.The resonance circuit includes 555 timers, triode Q1, the first electrode sensing
Device is electrically connected the threshold values end of 555 timer, and the second electrode sensor is electrically connected the discharge end of 555 timer,
The first electrode sensor is electrically connected the triggering end of 555 timer simultaneously, and the control terminal of 555 timer passes through electricity
Holding C3 connection power supply ground terminal, the threshold values end of 555 timer is by the fixed pattern capacitor C4 connection power supply ground terminal, and described 555
The reset terminal of timer is connect with the power end of 555 timer, and the output end of 555 timer is electrically connected the master control
Chip, the output end of 555 timer are electrically connected the base stage of the triode Q1, the collector electrical connection of the triode Q1
The emitter of the power end of 555 timer, the triode Q1 is electrically connected the second electrode sensor.Described 555 is fixed
When device output end to main control chip export a frequency f related with tested slurries conductivity.In the output end of 55 timers
Access triode Q1, have extension time base circuit load capacity, this function ensure that conductivity in large-range measuring, it is defeated
Frequency f out has linear well.
The working principle of the resonance circuit is as follows: when circuit brings into operation, the voltage on fixed pattern capacitor C4 is 0, practical electricity
Road is in SM set mode, and the output end of 555 timers exports high level, and triode Q1 is connected at this time.At this point, 555 timers
Into charging process, i.e. the power end of 555 timers passes through slurries connection conducting the through triode Q1 to second electrode sensor
One electrode sensor and to fixed pattern capacitor C4, charging exponentially rises, when rising to Vc >=2/3VCC, 555 timers
High limit comparator reversion inside threshold values end, time base circuit resets at this time, and the output end of 555 timers exports low level, three poles
Pipe Q1 cut-off, while open collector discharge tube is connected in the discharge end of 555 timers.555 timers enter discharge process, i.e.,
Fixed pattern capacitor C4 is connected to the discharge end of 555 timer of second electrode sensor conducts through first electrode sensor with slurries, electric discharge
Also exponentially decline, when being discharged to Vc≤1/3VCC, lower bound comparator is inverted in the triggering end of 555 timers, and 555 is fixed
When device control terminal export high level again, capacitor C4 charges again.Such above procedure iterative cycles, form vibration in cycles
Swing output f0.Following formula is obtained through analysis:
F0=0.772C4/Rx=K0G (t)
The electric conductivity value of mono- electrode of G (t)=1/Rx actual measurement；Mono- conductance of K0=0.772C4, one frequency transform coefficient.
Output frequency fo is directly proportional to conductance G (t), realize conductivity to output frequency linear transformation.
Analysis circuit operation principle obtains f=0.722/ (RC4), and wherein R is the resistance of detected solution.Due to,Wherein ρ is the resistivity of detected solution, and in the design process, the size of electrode sensor is fixed, thereforeIt is constant.
L is the spacing of two electrode sensors, and s is the depth and electrode sensor cross-sectional diameter of electrode sensor insertion test solution
Product.
L=15mm in this programme, s=15mm × 1.5mm=22.5mm2, thenC4=0.1 μ F.
Tested slurries folded by first electrode sensor and second electrode sensor are considered as resistance.Thus, it is possible to determine frequency
The linear relationship of rate and conductivity,
That is:
Thus the water quality of slurries is extrapolated:F=0.772C4/Rx=Kt*G
(t)
In the present embodiment, the water that the main control chip MCU passes through analysis slurries in cup body in soy bean milk making machine pulping process
Qualitative change identifies the material in cup body, and different pulping programs is executed according to different materials.
As shown in figure 3, after soy bean milk making machine pulping program starting, the main control chip passes through first electrode sensor and the
The water quality Ts of slurries, the main control chip are examined after waiting t1 again by water quality detecting device in two electrode sensor detection cup bodies
The water quality Tm of slurries is surveyed, the main control chip carries out analysis identification material according to the variation of Tm and Ts.
In the present embodiment, Ts is initial water quality value, after a certain function of soy bean milk making machine is started by selection, main control chip
MCU can read water by signal deteching circuit and first electrode sensor and second electrode sensor after program starts and stablizes
Matter is considered that program stablizes starting, certainly, according to the spy of main control chip MCU after generally taking starting in the present embodiment 10 seconds
Property determine.At this point, only later period change of water quality provides the benchmark of a comparison, while also can detecte out initial water quality etc.
Grade.
In the present embodiment, again by the water quality of water quality detecting device detection slurries after the main control chip waiting t1
Tm, the main control chip carry out analysis identification material according to the variation of Tm and Ts.Corresponding water is preset in the main control chip
Matter inquiry table, the main control chip compare water quality by detecting the change of water quality of slurries in cup body in soy bean milk making machine pulping process
Inquiry table, to know the type and/or inventory of pulping materials in cup body.The water quality inquiry table includes the water of different material
The water quality level threshold range intervals of matter threshold range interval and same material different material amount.
Main control chip adjusts beans according to initial water quality data, material variety data and material quantity data are previously obtained
The slurrying process of pulp grinder.In the present embodiment, initial water quality data may be used also other than the comparison benchmark for detecting material
For carrying out infusion power with reference to adjustment in slurrying process.According to the range of different initial water quality values, main control chip will
Different water quality is divided into different water quality levels, and different ranks corresponds to different infusion power.When main control chip is detecting
After the initial water quality value of slurries, which water quality level is belonged to by the initial water quality of programmed decision, is then selected further according to the water quality level
Corresponding infusion power is selected, when pulping program proceeds to the infusion stage, directlys adopt the corresponding infusion power of the water quality level
Infusion is carried out, to guarantee effects on slurry making and pulpability.
In the present embodiment, water quality is divided into 3 grades by some normal datas according to country about water quality, and T1 is pure
Water purification, T2 tap water, T3 underground water, different water quality marks correspond to different water grades, and specific processing is as follows: T1 pure water
Corresponding water quality TDS value range are as follows: 0-100；T2 tap water corresponds to water quality TDS value range are as follows: 100-300；T3 high hardness water is corresponding
Water quality TDS value range are as follows: 300 and values above.It is of course also possible to determine range according to the data in specific slurrying process.
In the present embodiment, actual infusion power is used according to specific model, adjustment principle be, since T1 to
The power of T3 group, infusion gradually reduces, and main adjustment heating dwell time, one rank of every rising recycles large and small fire infusion
Dwell time increases 1S.When i.e. main control chip determines that initial water quality is the water quality of T1 pure water rank, use it is general big
Small fire infusion power: 1/3 power of heating device heating 1S stops 3S and circulating-heating；If main control chip determines that water quality is T2 tap water
When the water quality of rank, the general large and small fire infusion power of use: 1/3 power of heating device heating 1S stops 4S or 5S and recycles to add
Heat；When programmed decision is the water quality of T3 high hardness water rank, the general large and small fire infusion power of use: 1/3 function of heating device
Rate heating 1S stops 6S circulating-heating.
Again by the water quality Tm of water quality detecting device detection slurries after the main control chip waiting t1, in the present embodiment
In, main control chip can compensate Tm according to water grade.Due to different water grades, the inspection of water quality below will affect
It surveys, needs to compensate data according to water grade, exclude the influence that different quality judges it precision.
Main control chip identifies material according to initial water quality Ts and water quality Tm.Due to different materials, in phase
The water quality TDS value for the slurries that detected under the conditions of is variant, such as three kinds of rice, dry beans, wet beans materials, since it is in phase
The solable matter difference being dissolved in the water under the conditions of is very big, therefore can use the principle, passes through the water quality TDS to slurries
The judgement of value is to identify different material types；For different material types, different water quality TDS value models is set in a program
It encloses, after detecting material type water quality TDS value, program first carries out initial water quality TDS compensation, the TDS that then will be obtained to it
Which setting range is value judge to belong to, to obtain in slurries as which kind of material.Different materials, setting is different in a program
Which kind of material electric motor starting mode and motor full flow endurance are obtaining and in conjunction with the following identification to inventory, are making
Slurry process proceeds to total power crushing stage, adjusts electric motor starting mode and full flow endurance.
And for identical material type, under identical test condition, different material amount, the solubility being dissolved in the water
Content of material is also different, still after identifying what type of material, according to the difference of water quality TDS value, fuzzy diagnosis
The number of inventory；Likewise, inventory is divided into several sections by us, different sections corresponds to different water quality TDS value models
It encloses, after detecting slurries water quality TDS value, program first carries out initial water quality TDS compensation to it, then carrys out the TDS value obtained
Which setting range judgement belongs to, to show which range is inventory belong to.Different inventory ranges, corresponding different electricity
Machine startup power and total power grinding time.Shown in table specific as follows:
| TDS value range | Normal material | 1.5 times of materials | 2 times of materials | 2 times or more material |
| Rice | D0-D1 | D1-D2 | D2-D3 | D3-D4 |
| Dry beans | D4-D5 | D5-D6 | D6-D7 | D7-D8 |
| Wet beans | D8-D9 | D9-D10 | D10-D11 | D11-D12 |
By taking dry beans add pure water as an example: increase 120-140 is 1 times of material, and increase 140-180 is 1.5 times of materials, is increased
180-220 is 2 times of materials；By taking wet beans as an example: increase 300-360 is 1 times of material, and increase 360-420 is 1.5 times of materials, is increased
420-480 is 2 times of materials；After main control chip identifies corresponding material and inventory, in the following manner to pulping program
Be adjusted, the relationship of electric motor starting mode and material, inventory: mode A starts time 6S, and B-mode starts time 8S, C mould
Formula starts time 10S；
| Starting mode | Normal inventory | 1.5 times of inventories | 2 times of inventories | 2 times or more |
| M1 (rice) | A | A | B | B |
| M2 (dry beans) | A | B | B | C |
| M3 (wet beans) | A | B | C | C |
And in motor total power, the relationship of working time and material, inventory is as shown in the table:
| Starting mode | Normal inventory | 1.5 times of inventories | 2 times of inventories | 2 times or more |
| M1 (rice) | 220S | 240S | 260S | 280S |
| M2 (dry beans) | 300S | 340S | 380S | 420S |
| M3 (wet beans) | 200S | 220S | 240S | 260S |
Identical material, identical inventory, different crushing programs, the solable matter being dissolved in the water also not phase
Together, under normal circumstances, crushing program is higher, and slurries water quality TDS value is bigger, therefore in slurrying process, with grinding time
Increase, water quality TDS value is constantly in propradation, and only after being crushed to certain procedures, water quality TDS value just starts to tend to
Stablize.So we can use this characteristic, in slurrying process total power crushing stage, by becoming to slurries water quality TDS value
The situation of change of gesture identifies the crushing situation of material；Such as can by crush situation identification, adjust automatically slurrying process,
Extension or shortening motor grinding time appropriate, thus the crushing effect being optimal.
Different materials, water quality TDS value change difference under different pulverization conditions, crush more abundant, water quality TDS
Value is bigger, and after crushing to a certain extent, water quality TDS variation is unobvious, is can be determined that at this time to have reached to crush and be expected.
Therefore the judgement of degree of grinding can be realized by the situation of change of water quality TDS value.The grinding time of total power crushing stage can lead to
The change curve of water quality TDS value is crossed to realize that flexible control needs to extend motor grinding time when the variation of water quality TDS value is obvious；
When water quality TDS value no longer changes or varies less, motor grinding time can be shortened.
Embodiment 2:
As shown in figure 4, the present embodiment the difference from embodiment 1 is that, after soy bean milk making machine pulping program starting, the master
Chip is controlled by the water quality Ts of slurries in water quality detecting device detection cup body, the material in cup body is heated to by the main control chip
Again by the water quality Tm of water quality detecting device detection slurries after temperature Q, the main control chip according to the variation of Tm and Ts into
Row analysis identification material.
Since electrical conductivity of solution measurement is greatly influenced by temperature, the dissociation constant of electrolyte, ion motion speed, solubility
Deng being all directly influenced by temperature, so that temperature directly affects the precision of electrical conductivity of solution measurement.When solution temperature increases, particle
Hydration weakens, and solution viscosity reduces, and the resistance of motion reduces, and the operation of ion heat is accelerated, and under electric field action, the orientation of ion is transported
Dynamic also to accelerate, conductive capability increases, and electrical conductivity of solution increases.Vice versa.Since the conductivity of solution is increased with temperature and increase
Greatly, therefore the temperature coefficient of electrical conductivity of solution is positive.This programme is when treatment temperature compensates, due to being typically all to be heated to set
Determine temperature Q, therefore water quality TDS value can be corrected by the way that program is unified, TDS value (the 25 DEG C of conditions being transformed under normal temperature
Under).
For other temperature spots, in the case where detected solution is fixed, the temperature of solution is every to increase 1 DEG C, and conductivity increases
About 2%, temperature correction facotor and temperature are at unary linear relation, when measuring temperature is 25 DEG C or so, temperature-compensating formula are as follows:
Ks=Kt/ [0.22t+0.45], Kt and Ks is respectively the conductivity of solution at Q DEG C and 25 DEG C in formula, temperature when Q is measurement.
It is larger according to the resulting conductivity error of above formula calculating when measuring 25 DEG C of temperature departure, it is surveyed to improve
Accuracy of measurement calculates different temperature ranges using different temperature correction facotor formula:
1 DEG C≤Q≤10 DEG C Ks=Kt/ (0.00169t+0.5583)；
10 DEG C≤Q≤20 DEG C Ks=Kt/ (0.018t+0.5473)；
20 DEG C≤Q≤30 DEG C Ks=Kt/ (0.00189t+0.5281)；
Ks=Kt/ (0.022t+0.45) other temperature ranges.
Water quality TDS value formula are as follows:It is carried out according to the temperature tested out
It substitutes into.
In the present embodiment, when water quality TDS is detected, the conductance that signal deteching circuit detects current slurries is first passed through
Rate, while the temperature value of current slurries is detected by temperature sensor, corresponding temperature is then chosen according to the temperature value of detection
Compensation formula calculates the water quality TDS value of current slurries.
Embodiment 3:
As shown in figure 5, the difference of the present embodiment and above-described embodiment 2 is: before the main control chip detection water quality Tm, institute
It states main control chip and controls the motor to the progress precomminution of cup intracorporal material.I.e. material variety and inventory recognition detection occur
After precomminution.
It is general without delay after initial water quality detection betides the starting of machinery equipment selection function, after function starting i.e.
Can start to detect, naturally it is also possible to powered in soy bean milk making machine, when non-selected function, begins to detect, at this point, material do not start also it is pre-
It crushes, water is not also begun to warm up, and water temperature is more stable, and influence of the solable matter in material to water quality is minimum.
After material variety and inventory recognition detection betide precomminution, total power crush before stage, selection when
Between can according to slurrying process come flexible choice, generally for the accuracy of detection and precomminution when entire soy bean milk making machine work
Noise consider, slurries can be heated to start to do precomminution again after certain temperature, can generally select to be heated to 50 DEG C or so
Start to do precomminution again, using this scheme there are two benefit, first is after heating a period of time, and material has a mistake for water suction softening
Journey, then when carrying out precomminution, be easy to crush, and the sound to work can be much smaller, it is solvable after second is heated to certain temperature
Property ion increased activity, the water quality TDS value difference promoted between different material type and inventory is different, enhances material variety and object
The accuracy of doses identification.
The key of material variety and inventory recognition detection is to carry out precomminution to material, if without precomminution
Words, it is each under the conditions of water quality TDS value difference it is too small, can not effectively identify, the purpose of detection is not achieved；And the pass of precomminution
Key is power of motor and the selection of motor working time, and power of motor is too big, and the noise of machine operation is too big when precomminution, influences
User experience, the motor working time is too long, and the water quality TDS value difference for influencing to distinguish when material recognition is anisotropic, in the item crushed completely
Under part, since soluble ion difference is little, the comparison in difference of water quality TDS value is small；Therefore, in this example, institute when precomminution
The range of speeds for stating motor is 4000rpm-8000rpm, when precomminution the motor intermittence cycle operation, each motor work
Time is -10 seconds 3 seconds.Crush Programmable detection identification: under the premise of initial water quality, material variety, inventory have identified,
Real-time tracking is carried out to the water quality TDS value of total power crushing stage slurries, identifies the situation of change of slurries water quality TDS value, from
And the water quality TDS range by setting goes the crushing situation of identification slurries.
Embodiment 4:
As shown in fig. 6, the difference of the present embodiment and above-described embodiment is, the power end and beans of the signal deteching circuit
Between the power supply VCC of pulp grinder be equipped with power control circuit, the power control circuit include by main control chip control switch with
And switch driving circuit.The switch is triode Q2, the resistance R3 and resistance R4.The base stage of the triode Q2 passes through
Resistance R3 is electrically connected main control chip, and the power end of the collector electrical connection signal deteching circuit of the triode Q2 tells three poles
The emitter electric connection of power supply VCC of pipe Q2 is equipped with electricity between the emitter of the triode Q2 and the base stage of the triode Q2
Hinder R4.
Since detecting electrode is there are polarization phenomena, electrode if energization, can make electrode polarization, the later period is caused to measure for a long time
Data are inaccurate, therefore in order to guarantee measurement accuracy and extend electrode life, the present embodiment increases power control circuit, by Fig. 6
In resistance R3, resistance R4, triode Q2 composition realizes control by the I/O of main control chip MCU, when needing to detect slurries
When water quality TDS value, main control chip MCU exports low level, and triode Q2 conducting, VCC powers to signal deteching circuit at this time, signal
Detection circuit starts detection data；When without test data, main control chip MCU exports high level, triode Q2 cut-off, letter
Number detection circuit does not work.
It is detected by using electrode sensor as water quality of the water quality detecting device to slurries, slurries is utilized not
The different characteristic of its conductivity in the case where with water quality, so that detection is simple and effective.
By the determination to initial water grade, different water quality is identified, to adjust the infusion in slurrying process
Power and the time, guarantee different quality under the conditions of effects on slurry making, the overflow problem of slurries is effectively reduced.And certain
Under the conditions of detect water quality again, to identify corresponding material variety and inventory, and by setting by comparing accordingly
Power of motor in fixed condition adjustment pulping program, motor working time etc. reach intelligent effects on slurry making.Simultaneously according to not
The Starting mode of same inventory adjustment motor, protects motor, extends electrical machinery life, reduce the noise in pulping process.
The degree of grinding of slurries is identified, by powder by identifying the variation of water quality in total power crushing stage simultaneously
The identification of broken degree, the working time of fuzzy adjustment motor, to guarantee crushing effect.
It is emphasized that protection scope of the present invention is including but not limited to above-mentioned specific embodiment.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, several modifications and improvements can also be made, this
It should also be considered as belonging to the scope of protection of the present invention a bit.
Claims (9)
1. a kind of soy bean milk making machine material intelligent recognition methods, the soy bean milk making machine includes for the motor of comminuting matter, to liquid in cup body
The heating device that body is heated and the main control chip to work for controlling the motor and heating device, feature
It is, the soy bean milk making machine is equipped with water quality detecting device, the water quality detecting device will test water quality data and be sent to main control chip,
The pulping process of the soy bean milk making machine includes muddy process, and the main control chip is by analyzing slurries in the cup body of muddy process front and back
Change of water quality the material in cup body is identified, and different pulping programs is executed according to different materials, the muddiness
Process includes standing the slurries t1 time, and after the soy bean milk making machine pulping program starting, the main control chip passes through water quality detecting device
Water quality in detection cup body after the water quality Ts, the main control chip waiting t1 of slurries again by water quality detecting device detection slurries
Tm, the main control chip carry out analysis identification material according to the variation of Tm and Ts.
2. soy bean milk making machine material intelligent recognition methods according to claim 1, which is characterized in that the muddiness process includes adding
Hot slurries are to temperature Q, and after the soy bean milk making machine pulping program starting, the main control chip passes through in water quality detecting device detection cup body
Slurries in cup body are heated to detecting after temperature Q again by water quality detecting device by the water quality Ts of slurries, the main control chip
The water quality Tm of slurries, the main control chip carry out analysis identification material according to the variation of Tm and Ts.
3. according to claim 1 or 2 described in any item soy bean milk making machine material intelligent recognition methods, which is characterized in that the muddiness
Process further includes that slurries are carried out with precomminution, and after the soy bean milk making machine pulping program starting, the main control chip passes through water quality detection
In device detection cup body before the water quality Ts, the main control chip detection water quality Tm of slurries, the main control chip controls the motor
Precomminution is carried out to the intracorporal material of cup, the main control chip carries out analysis identification material according to the variation of Tm and Ts.
4. soy bean milk making machine material intelligent recognition methods according to claim 3, which is characterized in that motor when precomminution
The range of speeds is 4000rpm-8000rpm, when precomminution the motor intermittence cycle operation, each motor working time is 3
- 10 seconds seconds.
5. soy bean milk making machine material intelligent recognition methods according to claim 1, which is characterized in that the main control chip is according to pre-
If material variety change of water quality threshold range interval, to know the type of pulping materials in cup body.
6. soy bean milk making machine material intelligent recognition methods according to claim 5, which is characterized in that the main control chip is according to pre-
If inventory change of water quality threshold range interval, to know pulping materials amount in cup body.
7. soy bean milk making machine material intelligent recognition methods according to claim 6, which is characterized in that change of water quality increment 120~
140 materials are dry beans standard volume；140~180 materials of change of water quality increment are 1.5 times of dry beans standard volumes；Change of water quality increases
180~220 materials of amount are 2 times of dry beans standard volumes；300~360 materials of change of water quality increment are wet beans standard volume；Water quality becomes
360~420 materials of quantizer input quantization increment are 1.5 times of wet beans standard volumes；420~480 materials of change of water quality increment are 2 times of wet beans standards
Amount.
8. soy bean milk making machine material intelligent recognition methods according to claim 1, which is characterized in that the soy bean milk making machine pulping program
Including crushing stage, the main control chip timing passes through the water quality of slurries in water quality detecting device detection cup body, the master control core
Piece knows the degree of grinding of material in cup body according to water quality value increase tendency and adjusts corresponding electrical machine working mode.
9. soy bean milk making machine material intelligent recognition methods according to claim 1, which is characterized in that the soy bean milk making machine pulping program
After starting, for the main control chip by the water quality Ts of slurries in water quality detecting device detection cup body, the pulping program includes enduring
It boils the stage, the main control chip adjusts the operating mode of heating device according to water quality Ts in the infusion stage.
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| CN107198470B (en) * | 2017-05-25 | 2020-01-31 | 九阳股份有限公司 | pulping control method |
| CN107319966B (en) * | 2017-06-13 | 2019-09-27 | 九阳股份有限公司 | Whether a kind of food processing equipment installs the recognition methods of disturbing flow device |
| CN107713820B (en) * | 2017-10-17 | 2020-10-27 | 九阳股份有限公司 | Control method of soybean milk machine |
| CN109124281B (en) * | 2017-10-26 | 2021-08-03 | 九阳股份有限公司 | Method for making beverage by using multifunctional food processor and multifunctional food processor |
| CN107960858B (en) * | 2017-11-22 | 2020-10-02 | 杭州九阳小家电有限公司 | Control method of food processing machine |
| CN108095579A (en) * | 2017-12-28 | 2018-06-01 | 深圳和而泰小家电智能科技有限公司 | Food processing apparatus and its food preparation method |
| CN108451367A (en) * | 2018-04-03 | 2018-08-28 | 彭柳玥 | Water dispenser |
| CN109211981B (en) * | 2018-09-05 | 2021-10-26 | 广东点球电子科技有限公司 | Method and device for calibrating probe of TDS detector and TDS detector |
| CN109793434B (en) * | 2019-02-25 | 2022-01-04 | 九阳股份有限公司 | Pulping method based on material types |
| CN110584462A (en) * | 2019-10-30 | 2019-12-20 | 珠海格力电器股份有限公司 | Electric cooker control method and electric cooker |
| CN112535422B (en) * | 2020-11-30 | 2021-12-14 | 重庆和慧源农副产品有限公司 | Soybean milk squeezing and baking integrated system |
| DE102021110535A1 (en) * | 2021-04-26 | 2022-10-27 | Miele & Cie. Kg | Beverage maker with sensor device |
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