CN106124714B - For the sulfur dioxide on-line monitoring method and device during wine production - Google Patents
For the sulfur dioxide on-line monitoring method and device during wine production Download PDFInfo
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- CN106124714B CN106124714B CN201610429892.6A CN201610429892A CN106124714B CN 106124714 B CN106124714 B CN 106124714B CN 201610429892 A CN201610429892 A CN 201610429892A CN 106124714 B CN106124714 B CN 106124714B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
- G01N33/14—Beverages
- G01N33/146—Beverages containing alcohol
Abstract
The invention discloses a kind of sulfur dioxide on-line monitoring methods and device for during wine production, it is related to Food Monitoring technical field, the present invention from during wine production gas-liquid phase equilibrium and dissociation equilibrium principle set about, fully consider many factors for influencing balance, after data during obtaining wine production, the vapor liquid equilibrium coefficient and ionic equilibrium coefficient of current grape wine equilibrium system are calculated by linear regression function, molecular state sulfur dioxide concentration in grape wine is calculated according to liquid phase molecular state sulfur dioxide equilibrium relation, and then free state sulfur dioxide concentration is calculated according to molecular state sulfur dioxide in liquid and free state sulfur dioxide dissociation equilibrium relationship, it can be realized quickly, it is lossless, dissociate sulfur dioxide concentration in intelligent measurement grape wine, with good convenience and real-time, it helps to realize directly Efficiently, accurately wine quality monitoring and quality control and raw material saving in brewing process.
Description
Technical field
The present invention relates to Food Monitoring technical field, in particular to a kind of sulfur dioxide for during wine production
On-line monitoring method and device.
Background technique
In brewing grape wine technique, sulfur dioxide is additive general in the world, and having prevents wine oxidation
With the effect of corruption.But the residual quantity of sulfur dioxide must be strictly controlled, and when additive amount is few, brown stain and generation easily occur for grape wine
Bacterial disease；Using it is excessive when, grape wine can be made to generate pungent thiozon taste, the quality of grape wine is not only influenced, to human body
Health can also generate adverse effect.
China provides grape wine in " national food safety standard food additives use standard " (GB 2760-2014)
Middle sulfur dioxide residual quantity is no more than 0.25g/L, two in " grape wine, fruit wine universaling analysis method " (GB/T 15038-2006)
The measuring method of sulfur oxide is oxidizing process and direct iodimetry.There are also the way of distillations and hydrochloric acid pair for other common chemical detection methods
Rosaniline method etc..Chemical detection method has good accuracy, needs special glass apparatus, but analytic process is complicated
And time overhead is big, is unsuitable for real time on-line monitoring.
Summary of the invention
In view of the above problems, it proposes on the present invention overcomes the above problem or at least be partially solved in order to provide one kind
State a kind of sulfur dioxide on-line monitoring method and device for during wine production of problem.
According to one aspect of the present invention, a kind of sulfur dioxide on-line monitoring for during wine production is provided
Method, which comprises
S1: current gas phase sulfur dioxide concentration during wine production, the current pH value of grape wine and current are obtained
Concentration of alcohol；
S2: according to the current concentration of alcohol, determining current vapor liquid equilibrium coefficient by linear regression function, described linear
Corresponding relationship of the regression function between concentration of alcohol and vapor liquid equilibrium coefficient；
S3: according to the current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance, the current molecular in grape wine is calculated
State sulfur dioxide concentration；
S4: according to the current pH value and current concentration of alcohol, determine that current ion is flat by Multiple Linear Regression Function
Weigh coefficient, corresponding relationship of the Multiple Linear Regression Function between pH value, concentration of alcohol and ionic equilibrium coefficient；
S5: according to the current pH value, current molecular state sulfur dioxide concentration, and current ionic equilibrium coefficient determines currently
Free state sulfur dioxide concentration.
Optionally, in step S2, the linear regression function is
K=α0+α1×E+ε
Wherein, K is vapor liquid equilibrium coefficient, α0For constant, α1For related coefficient, ε is stochastic error, and E is concentration of alcohol.
Optionally, in step S3, according to the current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance, pass through following formula meter
The current molecular state sulfur dioxide concentration in grape wine is calculated,
Wherein, K is vapor liquid equilibrium coefficient, SMFor molecular state sulfur dioxide concentration, M is sulfur dioxide molecule quality, and G is gas
Phase sulfur dioxide concentration.
Optionally, in step S4, the Multiple Linear Regression Function is
P=β0+β1×E+β2×PH+ε
Wherein, P is ionic equilibrium coefficient, β0For constant, β1,β2For related coefficient, ε is stochastic error, and E is that ethyl alcohol is dense
Degree, PH is pH value.
Optionally, in step S5, according to the current pH value, current molecular state sulfur dioxide concentration, and current ion is flat
Weighing apparatus coefficient determines current free state sulfur dioxide concentration by following formula,
SF=SM(1+10(PH-P))
Wherein, SMFor molecular state sulfur dioxide concentration, PH is pH value, and P is ionic equilibrium coefficient, SFFor free state titanium dioxide
Sulphur concentration.
Optionally, the method also includes:
The relative error between the free state sulfur dioxide concentration calculated in preset time period and measured value is obtained, described
When relative error is greater than default error, by the way that the gradient test of different pH value and concentration of alcohol is arranged, using chemical analysis method
It detects grape wine liquid sample and corrects the linear regression function and/or Multiple Linear Regression Function.
Optionally, described according to the current concentration of alcohol, current vapor liquid equilibrium coefficient is determined by linear regression function
Before, the method also includes:
By the way that the gradient experiment of different ethanol concentration is arranged, institute is established using chemical analysis detection grape wine liquid sample
State linear regression function.
Optionally, described according to the current pH value and current concentration of alcohol, worked as by Multiple Linear Regression Function determination
Before preceding ionic equilibrium coefficient, the method also includes:
By the way that the gradient experiment of different pH value and concentration of alcohol is arranged, grape wine liquid sample is detected using chemical analysis
Establish the Multiple Linear Regression Function.
Optionally, the method also includes:
Judge that the current free state sulfur dioxide concentration whether within the scope of preset concentration, mentions if it is not, then carrying out early warning
It wakes up.
According to another aspect of the invention, a kind of sulfur dioxide for during wine production is provided to supervise online
Device is surveyed, described device includes:
Parameter acquiring unit, for obtaining current gas phase sulfur dioxide concentration during wine production, grape wine
Current pH value and current concentration of alcohol；
First factor determination unit, for determining current gas by linear regression function according to the current concentration of alcohol
Liquid coefficient of balance, corresponding relationship of the linear regression function between concentration of alcohol and vapor liquid equilibrium coefficient；
Molecular concentration computing unit, for calculating according to the current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance
Current molecular state sulfur dioxide concentration in grape wine；
Second factor determination unit, for passing through multiple linear regression according to the current pH value and current concentration of alcohol
Function determines current ionic equilibrium coefficient, the Multiple Linear Regression Function be pH value, concentration of alcohol and ionic equilibrium coefficient it
Between corresponding relationship；
Ion concentration calculates unit, for according to the current pH value, current molecular state sulfur dioxide concentration, and currently from
Quantum balancing coefficient determines current free state sulfur dioxide concentration.
The present invention from during wine production gas-liquid phase equilibrium and dissociation equilibrium principle set about, fully consider that influence is flat
The many factors of weighing apparatus after data during obtaining wine production, pass through linear regression function and calculate current grape wine
The vapor liquid equilibrium coefficient and ionic equilibrium coefficient of equilibrium system calculate grape according to liquid phase molecular state sulfur dioxide equilibrium relation
Molecular state sulfur dioxide concentration in wine, and then closed according to molecular state sulfur dioxide in liquid and free state sulfur dioxide dissociation equilibrium
System calculates free state sulfur dioxide concentration, can be realized the sulfur dioxide concentration that dissociates in quick, lossless, intelligent measurement grape wine,
With good convenience and real-time, directly efficient, accurate wine quality monitoring and brewing process are helped to realize
In quality control and raw material saving.
Detailed description of the invention
Fig. 1 is one embodiment of the present invention for the sulfur dioxide on-line monitoring method during wine production
Flow chart；
Fig. 2 is one embodiment of the present invention for the sulfur dioxide on-Line Monitor Device during wine production
Structural block diagram.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Fig. 1 is one embodiment of the present invention for the sulfur dioxide on-line monitoring method during wine production
Flow chart；Referring to Fig.1, which comprises
S1: current gas phase sulfur dioxide concentration during wine production, the current pH value of grape wine and current are obtained
Concentration of alcohol.
It should be noted that gas sensor, which can be used, obtains current gas phase sulfur dioxide concentration, while being passed by pH value
The pH value of grape wine liquid, concentration of alcohol is respectively adopted in sensor, ethanol sensor.
To be easy to implement long-range monitoring, in present embodiment, the current gas phase sulfur dioxide concentration, grape wine it is current
PH value and current concentration of alcohol can be obtained by wireless sensor network.
S2: according to the current concentration of alcohol, determining current vapor liquid equilibrium coefficient by linear regression function, described linear
Corresponding relationship of the regression function between concentration of alcohol and vapor liquid equilibrium coefficient.
In present embodiment, the linear regression function can be
K=α0+α1×E+ε
Wherein, K is vapor liquid equilibrium coefficient, α0For constant, α1For related coefficient, ε is stochastic error, and ε~N (0, ε2),
E is concentration of alcohol.
It will be appreciated that before step S2, it can be by the gradient experiment of setting different ethanol concentration, using chemical analysis
Method detection grape wine liquid sample establishes the linear regression function.
S3: according to the current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance, the current molecular in grape wine is calculated
State sulfur dioxide concentration.
In present embodiment, it can be calculate by the following formula according to the current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance
Current molecular state sulfur dioxide concentration in grape wine,
Wherein, K is vapor liquid equilibrium coefficient, SMFor molecular state sulfur dioxide concentration, M is sulfur dioxide molecule quality, and G is gas
Phase sulfur dioxide concentration.
S4: according to the current pH value and current concentration of alcohol, determine that current ion is flat by Multiple Linear Regression Function
Weigh coefficient, corresponding relationship of the Multiple Linear Regression Function between pH value, concentration of alcohol and ionic equilibrium coefficient.
In present embodiment, the Multiple Linear Regression Function can be
P=β0+β1×E+β2×PH+ε
Wherein, P is ionic equilibrium coefficient, β0For constant, β1,β2For related coefficient, ε is stochastic error, and ε~N (0,
ε2), E is concentration of alcohol, and PH is pH value.
It will be appreciated that before step S 4, it can be by the different pH value of setting and the gradient experiment of concentration of alcohol, using change
It learns analytic approach detection grape wine liquid sample and establishes the Multiple Linear Regression Function.
S5: according to the current pH value, current molecular state sulfur dioxide concentration, and current ionic equilibrium coefficient determines currently
Free state sulfur dioxide concentration.
It, can be according to the current pH value, current molecular state sulfur dioxide concentration and current ionic equilibrium in present embodiment
Coefficient determines current free state sulfur dioxide concentration by following formula,
SF=SM(1+10(PH-P))
Wherein, SMFor molecular state sulfur dioxide concentration, PH is pH value, and P is ionic equilibrium coefficient, SFFor free state titanium dioxide
Sulphur concentration.
S6: obtaining the relative error between the free state sulfur dioxide concentration calculated in preset time period and measured value,
When the relative error is greater than default error, by the way that the gradient test of different pH value and concentration of alcohol is arranged, using chemical analysis
Method detects grape wine liquid sample and corrects the linear regression function and/or Multiple Linear Regression Function；
It will be appreciated that for the accuracy rate for guaranteeing the linear regression function and/or Multiple Linear Regression Function calculating, this
In embodiment, the relative error between the free state sulfur dioxide concentration calculated in preset time period and measured value can be obtained,
When the relative error is greater than default error, illustrate that the accuracy of the free state sulfur dioxide concentration calculated is undesirable,
It can be by the different pH value of setting and the gradient test of concentration of alcohol, using chemical analysis method detection grape wine liquid sample correction
The linear regression function and/or Multiple Linear Regression Function；
Certainly, when the relative error is not more than default error, illustrate the standard of the free state sulfur dioxide concentration calculated
Exactness meets the requirements, without correcting the linear regression function and/or Multiple Linear Regression Function.
In the concrete realization, relative error δ can be calculate by the following formula
Wherein, n is the number that free state sulfur dioxide concentration is calculated in preset time period,To pass through chemical analysis reality
The free state sulfur dioxide concentration of i-th measurement is tested,The free state sulfur dioxide concentration calculated for i-th.
S7: the current free state sulfur dioxide concentration is judged whether within the scope of preset concentration, if it is not, then carrying out early warning
It reminds.
It will be appreciated that illustrating currently free when the current free state sulfur dioxide concentration is within the scope of preset concentration
State sulfur dioxide concentration is at a normal level, without carrying out early warning prompting.
If current free state sulfur dioxide concentration SFHigher than upper limit value (the instant food upper safety limit of the preset concentration range
Value)Then wine quality is dangerous, is harmful to human health, needs to carry out early warning prompting；If current free state dioxy
Change sulphur concentration SFLower than the lower limit value of the preset concentration range (inhibiting corrupt lower limit value)Then sulfur dioxide can not have
Imitate it is anti-oxidant and antibacterial, grape wine may corruption, need to carry out early warning prompting.
Present embodiment from during wine production gas-liquid phase equilibrium and dissociation equilibrium principle set about, fully consider shadow
The many factors for ringing balance after data during obtaining wine production, pass through the current Portugal of linear regression function calculating
The vapor liquid equilibrium coefficient and ionic equilibrium coefficient of grape wine equilibrium system are calculated according to liquid phase molecular state sulfur dioxide equilibrium relation
Molecular state sulfur dioxide concentration in grape wine, and then dissociated and put down according to molecular state sulfur dioxide in liquid and free state sulfur dioxide
Weighing apparatus relationship calculates free state sulfur dioxide concentration, and it is dense to can be realized free sulur dioxide in quick, lossless, intelligent measurement grape wine
Degree has good convenience and real-time, helps to realize directly efficient, accurate wine quality monitoring and made
Quality control and raw material saving in journey.
For method implementation, for simple description, therefore, it is stated as a series of action combinations, but ability
Field technique personnel should be aware of, and embodiment of the present invention is not limited by the described action sequence, because according to the present invention
Embodiment, some steps may be performed in other sequences or simultaneously.Secondly, those skilled in the art should also know that,
Embodiment described in this description belongs to preferred embodiment, related movement embodiment party not necessarily of the present invention
Necessary to formula.
Fig. 2 is one embodiment of the present invention for the sulfur dioxide on-Line Monitor Device during wine production
Structural block diagram；Referring to Fig. 2, described device includes:
Parameter acquiring unit 201, for obtaining current gas phase sulfur dioxide concentration, grape wine during wine production
Current pH value and current concentration of alcohol；
First factor determination unit 202, for being determined by linear regression function current according to the current concentration of alcohol
Vapor liquid equilibrium coefficient, corresponding relationship of the linear regression function between concentration of alcohol and vapor liquid equilibrium coefficient；
Molecular concentration computing unit 203, for according to the current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance, meter
Calculate the current molecular state sulfur dioxide concentration in grape wine；
Second factor determination unit 204, for being returned by multiple linear according to the current pH value and current concentration of alcohol
Function is returned to determine current ionic equilibrium coefficient, the Multiple Linear Regression Function is pH value, concentration of alcohol and ionic equilibrium coefficient
Between corresponding relationship；
Ion concentration calculates unit 205, is used for according to the current pH value, current molecular state sulfur dioxide concentration, and work as
Preceding ionic equilibrium coefficient determines current free state sulfur dioxide concentration.
For device embodiments, since it is substantially similar to method implementation, so be described relatively simple,
Related place illustrates referring to the part of method implementation.
It should be noted that in all parts of the device of the invention, according to the function that it to be realized to therein
Component has carried out logical partitioning, and still, the present invention is not only restricted to this, can according to need all parts are repartitioned or
Person's combination.
All parts embodiment of the invention can be implemented in hardware, or to transport on one or more processors
Capable software module is realized, or is implemented in a combination thereof.In the present apparatus, PC is by realizing internet to equipment or device
Long-range control, the step of accurately controlling equipment or device each operation.The present invention is also implemented as executing here
Some or all device or device programs of described method are (for example, computer program and computer program produce
Product).Program of the invention, which is achieved, can store on a computer-readable medium, and the file or document tool that program generates
There is statistics available property, generate data report and cpk report etc., batch testing can be carried out to power amplifier and counts.On it should be noted that
Stating embodiment, illustrate the present invention rather than limit it, and those skilled in the art are not departing from
It can be designed replacement embodiment in the case where attached the scope of the claims.It in the claims, should not will be between bracket
Any reference symbol be configured to limitations on claims.Word "comprising" does not exclude the presence of member not listed in the claims
Part or step.Word "a" or "an" located in front of the element does not exclude the presence of multiple such elements.The present invention can borrow
Help include the hardware of several different elements and be realized by means of properly programmed computer.If listing equipment for drying
Unit claim in, several in these devices, which can be, to be embodied by the same item of hardware.Word first,
Second and the use of third etc. do not indicate any sequence.These words can be construed to title.
The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (10)
1. a kind of sulfur dioxide on-line monitoring method for during wine production, which is characterized in that the described method includes:
S1: the current pH value of current gas phase sulfur dioxide concentration, grape wine during acquisition wine production and current ethyl alcohol
Concentration；
S2: according to the current concentration of alcohol, current vapor liquid equilibrium coefficient, the linear regression are determined by linear regression function
Corresponding relationship of the function between concentration of alcohol and vapor liquid equilibrium coefficient；
S3: according to the current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance, the current molecular state two in grape wine is calculated
Sulfur oxide concentration；
S4: according to the current pH value and current concentration of alcohol, current ionic equilibrium system is determined by Multiple Linear Regression Function
Number, corresponding relationship of the Multiple Linear Regression Function between pH value, concentration of alcohol and ionic equilibrium coefficient；
S5: according to the current pH value, current molecular state sulfur dioxide concentration, and current ionic equilibrium coefficient determines current dissociate
State sulfur dioxide concentration.
2. the method as described in claim 1, which is characterized in that in step S2, the linear regression function is
K=α0+α1×E+ε
Wherein, K is vapor liquid equilibrium coefficient, α0For constant, α1For related coefficient, ε is stochastic error, and E is concentration of alcohol.
3. the method as described in claim 1, which is characterized in that in step S3, according to the current gas phase sulfur dioxide concentration
With gas-liquid coefficient of balance, the current molecular state sulfur dioxide concentration being calculate by the following formula in grape wine,
Wherein, K is vapor liquid equilibrium coefficient, SMFor molecular state sulfur dioxide concentration, M is sulfur dioxide molecule quality, and G is gas phase two
Sulfur oxide concentration.
4. the method as described in claim 1, which is characterized in that in step S4, the Multiple Linear Regression Function is
P=β0+β1×E+β2×PH+ε
Wherein, P is ionic equilibrium coefficient, β0For constant, β1,β2For related coefficient, ε is stochastic error, and E is concentration of alcohol, PH
For pH value.
5. the method as described in claim 1, which is characterized in that in step S5, according to the current pH value, current molecular state two
Sulfur oxide concentration, and current ionic equilibrium coefficient determine current free state sulfur dioxide concentration by following formula,
SF=SM(1+10(PH-P))
Wherein, SMFor molecular state sulfur dioxide concentration, PH is pH value, and P is ionic equilibrium coefficient, SFIt is dense for free state sulfur dioxide
Degree.
6. such as method according to any one of claims 1 to 5, which is characterized in that the method also includes step S6:
The relative error between the free state sulfur dioxide concentration calculated in preset time period and measured value is obtained, described opposite
When error is greater than default error, by the way that the gradient test of different pH value and concentration of alcohol is arranged, detected using chemical analysis method
Grape wine liquid sample corrects the linear regression function and/or Multiple Linear Regression Function.
7. such as method according to any one of claims 1 to 5, which is characterized in that it is described according to the current concentration of alcohol, lead to
It crosses before linear regression function determines current vapor liquid equilibrium coefficient, the method also includes:
By the way that the gradient experiment of different ethanol concentration is arranged, the line is established using chemical analysis detection grape wine liquid sample
Property regression function.
8. such as method according to any one of claims 1 to 5, which is characterized in that described according to the current pH value and current
Concentration of alcohol, before determining current ionic equilibrium coefficient by Multiple Linear Regression Function, the method also includes:
By the way that the gradient experiment of different pH value and concentration of alcohol is arranged, established using chemical analysis detection grape wine liquid sample
The Multiple Linear Regression Function.
9. such as method according to any one of claims 1 to 5, which is characterized in that the method also includes:
The current free state sulfur dioxide concentration is judged whether within the scope of preset concentration, if it is not, then carrying out early warning prompting.
10. a kind of sulfur dioxide on-Line Monitor Device for during wine production, which is characterized in that described device packet
It includes:
Parameter acquiring unit, for obtain current gas phase sulfur dioxide concentration during wine production, grape wine it is current
PH value and current concentration of alcohol；
First factor determination unit, for determining that current gas-liquid is flat by linear regression function according to the current concentration of alcohol
Weigh coefficient, corresponding relationship of the linear regression function between concentration of alcohol and vapor liquid equilibrium coefficient；
Molecular concentration computing unit, for calculating grape according to the current gas phase sulfur dioxide concentration and gas-liquid coefficient of balance
Current molecular state sulfur dioxide concentration in wine；
Second factor determination unit, for passing through Multiple Linear Regression Function according to the current pH value and current concentration of alcohol
Determine current ionic equilibrium coefficient, the Multiple Linear Regression Function is between pH value, concentration of alcohol and ionic equilibrium coefficient
Corresponding relationship；
Ion concentration calculates unit, for according to the current pH value, current molecular state sulfur dioxide concentration, and currently, ion to be flat
Weighing apparatus coefficient determines current free state sulfur dioxide concentration.
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| CN109240228A (en) * | 2018-09-03 | 2019-01-18 | 深圳市智物联网络有限公司 | A kind of data processing method and processing equipment |
| CN109470754B (en) * | 2018-12-18 | 2021-01-08 | 福建省农业科学院农业工程技术研究所 | Early warning method for excessive oxidation during wine storage period |
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