CN107991444B - A kind of method and device for tea leaf quality detection - Google Patents
A kind of method and device for tea leaf quality detection Download PDFInfo
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Abstract
The present invention relates to a kind of method and devices for tea leaf quality detection, the described method comprises the following steps: heating to millet paste to be detected, generate tea aroma, the millet paste to be detected is the millet paste for impregnating tealeaves to be detected；Tea aroma composition is obtained by sensor group, the sensor group includes six or more different gas sensors；The composition for the tea aroma that will acquire is sent to computer；Computer transfers the quality grade data of tealeaves from database；The tea aroma composition that will acquire is compared with tea leaf quality level data, obtains the quality grade of tealeaves to be detected.The tea aroma of tealeaves generation after heating is acquired by sensor group, the composition of tea aroma is analyzed, it is compared with the tea leaf quality grade in database, the quality grade of tealeaves can precisely be obtained, and it is intelligent, without reducing since the cost and artificial detection of artificial detection are easy the problem of being interfered by manually being detected.
Description
Technical field
The present invention relates to tea leaf quality detection field, in particular to a kind of method and device for tea leaf quality detection.
Background technique
The curative effect of medication that tea has body-building, controls disease, and rich appreciation temperament and interest, can cultivate one's taste.And the qualitative effects of tea this tea
Value, it is existing in the detection of tea quality mainly passed through manually detect, and need manually to have tea by artificial detection
Understanding abundant, and the personnel for cultivating the tea leaf quality detection of profession need to pay a large amount of cost, and by manually being examined
The quality for surveying tea is easy to be influenced to cause the problem of evaluation inaccuracy by the condition of the experience of personnel, physiology and psychology.
Summary of the invention
For this reason, it may be necessary to provide it is a kind of solve artificial detection tea leaf quality it is at high cost, be easy by personnel experience,
Physiology and psychological aspects influence to cause the method and device for tea leaf quality detection of evaluation inaccuracy.
To achieve the above object, a kind of method for tea leaf quality detection is inventor provided, comprising the following steps:
Millet paste to be detected is heated, generates tea aroma, the millet paste to be detected is the tea for impregnating tealeaves to be detected
Soup；
Tea aroma composition is obtained by sensor group, the sensor group includes six or more different gas sensings
Device；
The composition for the tea aroma that will acquire is sent to computer；
Computer transfers the quality grade data of tealeaves from database；
The tea aroma composition that will acquire is compared with tea leaf quality level data, obtains the quality etc. of tealeaves to be detected
Grade.
It advanced optimizes, which is characterized in that also wrapped after described " being heated to millet paste to be detected, generate tea aroma "
Include step:
The content of the tea polysaccharide in millet paste to be detected is impregnated in detection, judges tealeaves to be detected according to the content of tea polysaccharide of detection
Type.
It advanced optimizes, described " content of the tea polysaccharide in millet paste to be detected is impregnated in detection, is contained according to the tea polysaccharide of detection
Amount judges the type of tealeaves to be detected " it specifically includes:
Detect the temperature of millet paste to be detected；
When the temperature for detecting millet paste to be detected reaches 90 degrees Celsius, detected in millet paste to be detected by enzyme sensor
Content of tea polysaccharide；
The type of tealeaves to be detected is judged according to the content of tea polysaccharide of detection.
It advanced optimizes, " the quality grade data that computer transfers tealeaves from database " specifically include:
According to the type of tealeaves to be detected, computer transfers the quality grade data of the type tealeaves from database.
It advanced optimizes, described " the tea aroma composition that will acquire is compared with tea leaf quality level data, obtains tea
The quality grade of leaf " includes:
The composition for the tea aroma that different gas sensors acquires in real time is generated to different data and curves, it will be different
Data and curves and the quality grade data of the tealeaves of acquisition carry out it is corresponding compare, obtain the quality grade of tealeaves.
The present inventor additionally provides another technical solution, a kind of device for tea leaf quality detection, including heater
Ware, sensor group, single chip circuit and computer, the sensor group are connected to single chip circuit, and the single chip circuit connects
It is connected to computer；
The heating vessel carries out heating to millet paste to be detected and generates tea aroma, institute for holding millet paste to be detected
Stating millet paste to be detected is the millet paste for impregnating tealeaves to be detected；
The sensor group includes that six or more different air-sensitives pass for obtaining tea aroma composition, the sensor group
Sensor；
The single chip circuit is used to the tea aroma ingredient of acquisition being sent to computer；
The computer is used to transfer the quality grade data of tealeaves, and the tea aroma composition that will acquire from database
It is compared with tea leaf quality level data, obtains the quality grade of tealeaves.
It advanced optimizes, further includes enzyme sensor, the enzyme sensor is connected to single chip circuit, and the enzyme sensor is used
The content of tea polysaccharide in millet paste to be detected is detected in single chip circuit.
It advanced optimizes, further includes temperature sensor, the temperature sensor detects tea to be detected for single chip circuit
The temperature of soup, the single chip circuit are also used to pass when the temperature for detecting millet paste to be detected reaches 90 degrees Celsius by enzyme
Sensor detects the content of tea polysaccharide in millet paste to be detected, and the type of tealeaves to be detected is judged according to the content of tea polysaccharide of detection.
It advanced optimizes, the computer is also used to transfer out this kind from database according to the type of tealeaves to be detected
The quality grade data of class tealeaves.
It advanced optimizes, the composition for the tea aroma that the computer is also used in real time acquire different gas sensors
Generate different data and curves, by different data and curves and the quality grade data of the tealeaves of acquisition carry out it is corresponding compare, obtain
Take the quality grade of tealeaves.
It is different from the prior art, above-mentioned technical proposal, is generated after being acquired millet paste heating to be detected by sensor group
Tea aroma composition, the composition of tea aroma is sent to computer by logical single chip circuit, and computer is to tea aroma
Composition is analyzed, and is compared with the tea leaf quality grade in database, and the quality grade of tealeaves can be precisely obtained, and
Intelligence, it is not necessary that by manually being detected, reduction is asked due to what the cost and artificial detection of artificial detection were easy to be interfered
Topic.
Detailed description of the invention
Fig. 1 is a kind of flow diagram described in specific embodiment for the method for tea leaf quality detection；
Fig. 2 is a kind of structural schematic diagram described in specific embodiment for the device of tea leaf quality detection；
Fig. 3 is a kind of structural schematic diagram of single chip circuit described in specific embodiment；
Fig. 4 is a kind of structural schematic diagram of sensor group described in specific embodiment；
Fig. 5 is a kind of structural schematic diagram of circuit fixed case described in specific embodiment.
Description of symbols:
210, heating module,
220, sensor group,
230, single chip circuit,
240, computer,
250, enzyme sensor,
260, temperature sensor,
310, battery,
311, charge port,
320, fan,
331, card slot,
332, serial ports hole,
340, handle.
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality
It applies example and attached drawing is cooperated to be explained in detail.
Referring to Fig. 1, a kind of method for tea leaf quality detection of the present embodiment, comprising the following steps:
Step S110: heating millet paste to be detected, generates tea aroma；By infusion of tea to be detected shape in water
At millet paste to be detected, by being heated to millet paste to be detected, when millet paste to be detected is during heating, in tealeaves to be detected
Composition will be dissolved in millet paste, and with heating during, composition in tealeaves to be detected with millet paste volatilization shape
At tea aroma.
Step S120: tea aroma composition is obtained by sensor group；Wherein, sensor group is by different gas sensors
Composition, the different components being acquired by different gas sensors in tea aroma；After sensor group detects heating tea leaves
The component content of tea aroma is converted into voltage signal by the composition of the tea aroma of generation.Wherein it is possible to according to the tea of detection
The variety classes of leaf carry out replacing the quality grade that the corresponding sensor group detected carries out detection tealeaves.
Step S130: the composition for the tea aroma that will acquire is sent to computer；Sensor group will acquire tea aroma
After component content is converted into voltage signal, the voltage signal after conversion is sent to computer and is analyzed.
Step S140: computer transfers the quality grade data of tealeaves from database；The product of tealeaves are stored in database
Matter level data.Such as the quality of tealeaves is divided into first-class, medium and three kinds inferior and corresponding not according to the tealeaves of different qualities
Same tea aroma composition.
Step S150: the tea aroma composition that will acquire is compared with tea leaf quality level data, obtains the product of tealeaves
Matter grade.Computer according to judge the component content of tea aroma after the voltage signal for receiving the transmission of sensor group, and
Be compared by the tea aroma composition that will acquire with the tea leaf quality level data transferred from database, according to tealeaves at
Tea leaf quality grade corresponding to part obtain the quality grade of tealeaves, and then detects the quality of tealeaves.
It is acquired the tea aroma of tealeaves generation after heating by sensor group, the composition of tea aroma is divided
Analysis, is compared with the tea leaf quality grade in database, can precisely obtain the quality grade of tealeaves, and intelligent, point
Analysis method is simple, few using equipment, without reducing since the cost and artificial detection of artificial detection are held by manually being detected
The problem of vulnerable to interference.
Wherein, sensor group may include there are six above gas sensor, pass through six or more gas sensors
It can accurately detect the composition in the tea aroma generated after heating tea leaves, wherein gas sensor group is by model
TSG2201, TSG26002, TSG2610, TSG2620, TSG826, TSG821, TSG842, TSG825, TSG880 and TSG813 etc.
Six or more gas sensors composition in gas sensor.The gas sensor of TSG2201 model detects nitrogen oxides,
The gas sensor of TSG26002 model detects the organic solvents such as alcohol, ammonia, halogen, the gas sensor of TSG2610 model
Detect the liquefied gas such as propane, butane；The organic solvents such as the gas sensor detection alcohol of TSG2620 model, TSG826 model
Gas sensor detects aminated compounds, and the gas sensor of TSG821 model detects hydrogen, the gas sensing of TSG842 model
Device detects hydrocarbon, the gas sensor detection of the gas sensor detection sulfide, TSG880 model of TSG825 model
Food cooking process volatilization gas, the imflammable gas such as gas sensor detection methane of TSG813 model.
As different types of tealeaves, it detects possible different, the Ke Yishe of tea aroma composition corresponding to tea leaf quality
The gas sensor for setting six or more carries out selected section gas sensor by the type of tealeaves and works, such as detects
When the quality of oolong tea, can choose TGS825 sensor, TGS813 sensor, TGS2610 sensor, TGS2602 sensor,
TGS842 sensor and TGS826 sensor.
Wherein, the detection voltage value of different gas sensors is carried out being indicated its tea detected with 0-100 numerical value
Component content in leaf.And after the quality grade data of tealeaves can be tested by using standard sample in database
It arrives；Such as the acquisition of the quality grade data of the oolong tea of standard, by first-class, the medium and inferior crow for taking several pieces respectively
Imperial tea carries out the interval value that detection obtains its different components, the result that such as first-class oolong tea detects by sensor group are as follows:
Its composition section that TGS825 sensor detects is 78-90, its composition section that TGS813 sensor detects is 70-80,
Its composition section that TGS2610 sensor detects is 65-75, its composition section that TGS2602 sensor detects is 60-
Its composition section that 70, TGS842 sensors detect is 50-65, its composition section that TGS826 sensor detects is 41-
53；And the result of medium oolong tea detection are as follows: its composition section that TGS825 sensor detects is 72-83, and TGS813 is passed
Its composition section that sensor detects is 68-75, its composition section that TGS2610 sensor detects is 62-70, TGS2602
Its composition section that sensor detects is 58-65, its composition section that TGS842 sensor detects is 55-60, TGS826
Its composition section that sensor detects is 33-45；And inferior oolong tea detection structure are as follows: TGS825 sensor detects
Its composition section is 68--85, its composition section that TGS813 sensor detects is 63-70, and TGS2610 sensor detects
Its composition section be 60-65, its composition section that TGS2602 sensor detects is 52-60, and TGS842 sensor detects
Its composition section be 48-55, its composition section that TGS826 sensor detects be 29-35；The result that will test out is deposited
Store up the quality grade data that oolong tea is formed into database.Similarly other kinds of tealeaves is carried out to obtain its quality grade number
According in deposit database.
And when being detected to the quality grade of tealeaves to be detected, infusion of tea to be detected is formed in water to be detected
Millet paste generates tea aroma by heating to millet paste to be detected, by the tealeaves composition in detection tea aroma, and will test
Tealeaves composition is converted into corresponding numerical value, by being compared with the tea leaf quality level data in database, obtains to be checked
Survey the quality grade of tealeaves.Such as oolong tea is immersed in water in closed environment by the quality grade of a oolong tea of detection
In after, be placed in closed environment and be heated to 95 degrees Celsius of generation tea aromas, carried out by sensor group to tealeaves
Fragrance is detected, and TGS825 sensor, TGS813 sensor, TGS2610 sensor, TGS2602 sensor, TGS842 are passed through
Six kinds of sensors such as sensor and TGS826 sensor pass through detection in 5 minutes, and the corresponding voltage of sensor detection is changed
It is converted into the numerical value of 0-100, finally gets the data of detection are as follows: its composition section that TGS825 sensor detects is 82-
Its composition section that 85, TGS813 sensors detect is 72-80, its composition section that TGS2610 sensor detects is 60-
Its composition section that 65, TGS2602 sensors detect is 64-79, its composition section that TGS842 sensor detects is 61-
Its composition section that 66, TGS826 sensors detect is 36-45, and the data that computer will acquire carry out and oolong in database
The quality grade data of tea standard are compared, and judge that it is closest with which quality grade data, as a result obtain detected
The quality grade of oolong tea is first quality.
Wherein, realize and judge automatically the type of tealeaves to be detected, further comprise the steps of: after step silo detection impregnate to
The content for detecting the tea polysaccharide in millet paste, the type of tealeaves to be detected is judged according to the content of tea polysaccharide of detection.In different tealeaves
The content of tea polysaccharide is different, such as: the content of the tea polysaccharide of oolong tea are as follows: 2-3%, the content of the tea polysaccharide of green tea are as follows: 1-
1.5%, the content of the tea polysaccharide of black tea are as follows: 0.5-0.1% (degree refers to the ratio for accounting for dry tea weight), and biology passes
Enzyme sensor in sensor can detecte the content of tea polysaccharide in tealeaves, infusion of tea to be detected in water after, the tea in tealeaves
Polysaccharide can be dissolved in millet paste to be detected, may determine that the kind of tealeaves to be detected by the content of tea polysaccharide in detection millet paste
Class.Wherein it is possible to detect the content of its tea polysaccharide with each 10 parts of the tealeaves of Known Species with enzyme sensor, used according to different tealeaves
Enzyme sensor detects the difference of output voltage range, obtains the output voltage range of different tealeaves, then with programming the model of voltage
The numerical value for being converted into 0-100 is enclosed, the data after conversion are made into normal data, the sugar content and criterion numeral of subsequent tealeaves test
According to comparing, the type of the tealeaves of test is obtained.For example, by the normal data of the content of tea polysaccharide of oolong tea, green tea and black tea point
Not are as follows: 75-93,36-52,10-25；When the type to the tealeaves to be detected in millet paste to be detected detects, passed by enzyme
The normal data that sensor detects the content of tea polysaccharide in millet paste to be detected is 73-88, then judges its tea polysaccharide mark with oolong tea
Quasi- data are closest, and the type for obtaining the tealeaves to be detected in millet paste to be detected is oolong tea.
And solubility of the tea polysaccharide in 85~90 DEG C of hot water is 76%, it is more to tea in millet paste to be detected by enzyme sensor
The detecting step of sugared content are as follows:
Detect the temperature of millet paste to be detected；
When the temperature for detecting millet paste to be detected reaches 90 degrees Celsius, detected in millet paste to be detected by enzyme sensor
Content of tea polysaccharide；
The type of tealeaves to be detected is judged according to the content of tea polysaccharide of detection.
During heating, tea polysaccharide is slowly dissolved in millet paste to be detected millet paste to be detected, to millet paste to be detected
Temperature detected, when the temperature of millet paste to be detected reaches 90 degrees Celsius, at this time to content of tea polysaccharide in millet paste to be detected
It is detected, can accurately detect the content of tea polysaccharide in millet paste to be detected, it is to be detected so as to accurately judge
The type of tealeaves to be detected in millet paste.
In the present embodiment, the composition in tea aroma generated due to heating tea leaves is upper in different times may be different
The composition for the tea aroma that different gas sensors acquires in real time is generated different data and curves by sample, computer, will be different
Data and curves and the quality grade data of the tealeaves of acquisition carry out it is corresponding compare, obtain the quality grade of tealeaves.Pass through difference
Gas sensor carry out the composition of acquisition tea aroma in real time, generate different data and curves, then by the data and curves of generation
Be compared with the quality grade data for the tealeaves transferred from database, and then obtains the quality grade of tealeaves.
Wherein, the data conversion for the tea aroma composition that gas sensor will test is passing through analog-to-digital conversion at voltage signal
After become digital signal and be sent to computer, computer can be shown by the display interface that LABVIEW is designed, using
It is programmable to receive and after processing receives data, data are passed to by lnpAry to the parser in Matlab, wherein divide
Analysis algorithm is to realize PCA analysis and LVQ neural metwork training and network analysis in Matlab script insertion Labview, by dividing
It analyses algorithm to carry out after calculating accordingly the data of acquisition, by plot function drawing data curve, then passes through correlation data
The quality grade data of tealeaves provide the quality grade of tested tealeaves in library.
The sensor of selection work can be carried out by the display interface that LABVIEW on computers is designed, it can
Any one gas sensor can be closed or open by display interface acquire the composition of tea aroma, it can basis
Carry out detection tea kinds and be configured the sensor of work to be acquired the composition of tea aroma.
Wherein, in order to which the time for reducing computer called data from database calculates according to the type of tealeaves to be detected
Machine transfers the quality grade data of the type tealeaves from database.Computer carries out transferring the tealeaves kind according to the type of tealeaves
Quality grade data corresponding to class both can accurately judge the corresponding type of tealeaves, can also accurately judge tealeaves
Quality grade, and according to the type of tealeaves transfer the quality grade data of corresponding tealeaves, computer be not necessarily to from
Whole data are transferred in database, reduce the time of computer called data from database, wherein tealeaves kind to be detected
The judgement of class can be computer and obtain the tea kinds of user's selection or be detected in millet paste to be detected according to enzyme sensor
The content of tea polysaccharide judge the type of tealeaves to be detected.
Referring to Fig. 2, in another embodiment, a kind of device for tea leaf quality detection, including heating vessel, biography
Sensor group 220, single chip circuit 230 and computer 240, the sensor group are connected to single chip circuit, and the monolithic is electromechanical
Road is connected to computer；
The heating vessel carries out heating to millet paste to be detected and generates tea aroma, institute for holding millet paste to be detected
Stating millet paste to be detected is the millet paste for impregnating tealeaves to be detected；Heating module is equipped in heating vessel, by heating module 210 to adding
Heat in hot vessel, when millet paste to be detected is during heating, the composition in tealeaves to be detected will be dissolved in tea
Tang Zhong, and with heating during, composition in tealeaves to be detected forms tea aroma with the volatilization of millet paste, is more convenient to pass
Sensor group 220 be acquired to the ingredient of tea aroma.Wherein, heating module 210 is connected to single chip circuit 230, leads to
Cross the work that single chip circuit 230 carries out control heating module 210.
The sensor group 220 is for obtaining tea aroma composition；Wherein, sensor group 220 is by different gas sensings
Device group 220 is at the composition being acquired in tea aroma by different gas sensors；The detection heating tea of sensor group 220
The component content of tea aroma is converted into voltage signal by the composition of the tea aroma generated after leaf.Wherein it is possible to according to detection
The variety classes of tealeaves replace the sensor group 220 of corresponding detection and carry out the quality grade of detection tealeaves.
Referring to Fig. 3, single chip circuit 230 includes single-chip microcontroller U1 and analog-digital converter U2 and analog-digital converter U3, monolithic
Machine U1 connects sensor group 220 with analog-digital converter U3 by analog-digital converter U2, and the single chip circuit 230 will be for that will acquire
Tea aroma ingredient be sent to computer 240；The component content for acquiring tea aroma is converted into voltage letter by sensor group 220
After number, 230 receiving sensor group 220 of single chip circuit detects voltage data, and converts after controlling analog-digital converter voltage data
For digital signal, the digital signal after conversion is sent to computer 240 by uart and is analyzed.Wherein single chip circuit
230 can be connected by USB serial ports with computer 240, facilitate the information between single chip circuit 230 and computer 240
Interaction.It wherein carries out reinforcing anti-interference energy to digitally and with simulating being isolated using the Europe O resistance in single chip circuit 230
Power.
The computer 240 is used to transfer the quality grade data of tealeaves, and the tea aroma that will acquire from database
Composition is compared with tea leaf quality level data, obtains the quality grade of tealeaves.The quality grade of tealeaves is stored in database
Data.Such as the quality of tealeaves is divided into first-class, medium and three kinds inferior, and different tea is corresponded to according to the tealeaves of different qualities
Leaf fragrance ingredient.Computer 240 according to judge after the voltage signal for receiving the transmission of sensor group 220 tea aroma at
Part content, and the tea aroma composition by will acquire is compared with the tea leaf quality level data transferred from database,
Obtain according to tea leaf quality grade corresponding to tealeaves composition the quality grade of tealeaves, and then detects the quality of tealeaves.
It is acquired the tea aroma of tealeaves generation after heating by sensor group 220, the composition of tea aroma is carried out
Analysis, is compared with the tea leaf quality grade in database, can precisely obtain the quality grade of tealeaves, and intelligent,
Without reducing since the cost and artificial detection of artificial detection are easy the problem of being interfered by manually being detected.
Referring to Fig. 4, wherein, sensor group 220 may include that there are six above gas sensors, pass through six or more
Gas sensor can accurately detect the composition in the tea aroma generated after heating tea leaves, wherein sensor group 220
By model TSG2201, TSG26002, TSG2610, TSG2620, TSG826, TSG821, TSG842, TSG825, TSG880 and
The gas sensor of TSG813 forms.The gas sensor of TSG2201 model detects nitrogen oxides, the air-sensitive of TSG26002 model
Sensor detects the organic solvents such as alcohol, ammonia, halogen, and the gas sensor of TSG2610 model detects the liquefaction such as propane, butane
Gas；The organic solvents such as the gas sensor detection alcohol of TSG2620 model, the gas sensor of TSG826 model detect amine
Object is closed, the gas sensor of TSG821 model detects hydrogen, and the gas sensor of TSG842 model detects hydrocarbon,
The gas sensor detection sulfide of TSG825 model, the gas sensor of TSG880 model detect food cooking process Volatile Gas
Body, the imflammable gas such as gas sensor detection methane of TSG813 model.
As different types of tealeaves, it detects possible different, the Ke Yishe of tea aroma composition corresponding to tea leaf quality
The gas sensor for setting six or more carries out selected section gas sensor by the type of tealeaves and works, such as detects
When the quality of oolong tea, alcohol sensor, oxycarbide sensor, liquefaction gas sensor, aminated compounds sensing can choose
Device, sulfide sensor and hydrogen gas sensor.
Wherein, the detection voltage value of different gas sensors is carried out being indicated its tea detected with 0-100 numerical value
Component content in leaf.And after the quality grade data of tealeaves can be tested by using standard sample in database
It arrives；Such as the acquisition of the quality grade data of the oolong tea of standard, by first-class, the medium and inferior crow for taking several pieces respectively
Imperial tea carries out the interval value that detection obtains its different components, the result that such as first-class oolong tea detects by sensor group are as follows:
Its composition section that TGS825 sensor detects is 78-90, its composition section that TGS813 sensor detects is 70-80,
Its composition section that TGS2610 sensor detects is 65-75, its composition section that TGS2602 sensor detects is 60-
Its composition section that 70, TGS842 sensors detect is 50-65, its composition section that TGS826 sensor detects is 41-
53；And the result of medium oolong tea detection are as follows: its composition section that TGS825 sensor detects is 72-83, and TGS813 is passed
Its composition section that sensor detects is 68-75, its composition section that TGS2610 sensor detects is 62-70, TGS2602
Its composition section that sensor detects is 58-65, its composition section that TGS842 sensor detects is 55-60, TGS826
Its composition section that sensor detects is 33-45；And inferior oolong tea detection structure are as follows: TGS825 sensor detects
Its composition section is 68--85, its composition section that TGS813 sensor detects is 63-70, and TGS2610 sensor detects
Its composition section be 60-65, its composition section that TGS2602 sensor detects is 52-60, and TGS842 sensor detects
Its composition section be 48-55, its composition section that TGS826 sensor detects be 29-35；The result that will test out is deposited
Store up the quality grade data that oolong tea is formed into database.Similarly other kinds of tealeaves is carried out to obtain its quality grade number
According in deposit database.
And when being detected to the quality grade of tealeaves to be detected, infusion of tea to be detected is formed in water to be detected
Millet paste generates tea aroma by heating to millet paste to be detected, by the tealeaves composition in detection tea aroma, and will test
Tealeaves composition is converted into corresponding numerical value, by being compared with the tea leaf quality level data in database, obtains to be checked
Survey the quality grade of tealeaves.Such as oolong tea is immersed in water in closed environment by the quality grade of a oolong tea of detection
In after, be placed in closed environment and be heated to 95 degrees Celsius of generation tea aromas, carried out by sensor group to tealeaves
Fragrance is detected, and TGS825 sensor, TGS813 sensor, TGS2610 sensor, TGS2602 sensor, TGS842 are passed through
Six kinds of sensors such as sensor and TGS826 sensor pass through detection in 5 minutes, and the corresponding voltage of sensor detection is changed
It is converted into the numerical value of 0-100, finally gets the data of detection are as follows: its composition section that TGS825 sensor detects is 82-
Its composition section that 85, TGS813 sensors detect is 72-80, its composition section that TGS2610 sensor detects is 60-
Its composition section that 65, TGS2602 sensors detect is 64-79, its composition section that TGS842 sensor detects is 61-
Its composition section that 66, TGS826 sensors detect is 36-45, and the data that computer will acquire carry out and oolong in database
The quality grade data of tea standard are compared, and judge that it is closest with which quality grade data, as a result obtain detected
The quality grade of oolong tea is first quality.
Wherein, it realizes the type for judging automatically tealeaves to be detected, further includes enzyme sensor 250, the enzyme sensor 250 connects
It is connected to single chip circuit, the enzyme sensor 250 detects the content of tea polysaccharide in millet paste to be detected for single chip circuit.It is different
The content of tea polysaccharide is different in tealeaves, such as: the content of the tea polysaccharide of oolong tea are as follows: 2-3%, the content of the tea polysaccharide of green tea
Are as follows: 1-1.5%, the content of the tea polysaccharide of black tea are as follows: 0.5-0.1% (degree refers to the ratio for accounting for dry tea weight), and
Enzyme sensor 250 in biosensor can detecte the content of tea polysaccharide in tealeaves, infusion of tea to be detected in water after, tea
Tea polysaccharide in leaf can be dissolved in millet paste to be detected, may determine that tea to be detected by the content of tea polysaccharide in detection millet paste
The type of leaf.Wherein it is possible to the content of its tea polysaccharide is detected with enzyme sensor 250 with each 10 parts of tealeaves of Known Species, according to
Different tealeaves detect the difference of output voltage range with enzyme sensor 250, obtain the output voltage range of different tealeaves, then with volume
Journey is converted into the range of voltage the numerical value of 0-100, the data after conversion is made into normal data, subsequent tealeaves test contains
Sugar amount and normal data compare, and obtain the type of the tealeaves of test.For example, by the content of tea polysaccharide of oolong tea, green tea and black tea
Normal data be respectively as follows: 75-93,36-52,10-25；When the type to the tealeaves to be detected in millet paste to be detected detects
When, the normal data that the content of tea polysaccharide in millet paste to be detected is detected by enzyme sensor 250 is 73-88, then judges itself and crow
The tea polysaccharide normal data of imperial tea is closest, and the type for obtaining the tealeaves to be detected in millet paste to be detected is oolong tea.
And solubility of the tea polysaccharide in 85~90 DEG C of hot water is 76%, then further includes temperature sensor 260, the temperature
Sensor 260 detects the temperature of millet paste to be detected for single chip circuit, and the single chip circuit is also used to be checked when detecting
The temperature of millet paste is surveyed when reaching 90 degrees Celsius, the content of tea polysaccharide in millet paste to be detected is detected by enzyme sensor 250, and according to
The content of tea polysaccharide of detection judges the type of tealeaves to be detected.For millet paste to be detected during heating, tea polysaccharide is slowly molten
In Xie Yu millet paste to be detected, the temperature of millet paste to be detected is detected, when the temperature of millet paste to be detected reaches 90 degrees Celsius,
Content of tea polysaccharide in millet paste to be detected is detected at this time, can accurately detect containing for tea polysaccharide in millet paste to be detected
Amount, so as to accurately judge the type of the tealeaves to be detected in millet paste to be detected.Temperature sensor 260 and enzyme are sensed
Device 250 is arranged in heating vessel.
In the present embodiment, the composition in tea aroma generated due to heating tea leaves is upper in different times may be different
The composition for the tea aroma that different gas sensors acquires in real time is generated different data and curves by sample, computer 240, will not
With data and curves and the quality grade data of the tealeaves of acquisition carry out it is corresponding compare, obtain the quality grade of tealeaves.By not
Same gas sensor carries out the composition of acquisition tea aroma in real time, generates different data and curves, then the data of generation are bent
Line be compared with the quality grade data for the tealeaves transferred from database, and then obtains the quality etc. of tealeaves
Grade.
Wherein, the data conversion for the tea aroma composition that gas sensor will test is passing through analog-to-digital conversion at voltage signal
After become digital signal and be sent to computer 240, computer 240 can be shown by the display interface that LABVIEW is designed,
After receiving data using programmable reception and processing, data are passed into the parser in Matlab by lnpAry,
Wherein, parser is to realize PCA analysis and LVQ neural metwork training and network analysis in Matlab script insertion Labview,
The data of acquisition are carried out after calculating accordingly by parser, by plot function drawing data curve, then by pair
Than the quality grade that the quality grade data of tealeaves in database provide tested tealeaves.Computer 240 is designed by LABVIEW
Display interface can watch the graph curve of the data of each gas sensor acquisition in real time, and the data of acquisition can save, side
Just whenever checked.
The sensor of selection work can be carried out by the display interface that the LABVIEW on computer 240 is designed
Acquire the composition of tea aroma can close or open any one gas sensor by display interface, Ke Yigen
The composition of tea aroma is acquired according to the sensor for carrying out detection tea kinds and being configured work.
Wherein, in order to reduce time of the called data from database of computer 240, according to the type of tealeaves to be detected,
Computer 240 transfers the quality grade data of the type tealeaves from database.Computer 240 is adjusted according to the type of tealeaves
Quality grade data corresponding to the tea kinds are taken, both can accurately judge the corresponding type of tealeaves, it can also be accurately
Judge the quality grade of tealeaves, and transfer according to the type of tealeaves the quality grade data of corresponding tealeaves, counts
Calculation machine 240 is not necessarily to transfer whole data from database, reduces the time of the called data from database of computer 240,
Wherein the judgement of tea kinds to be detected can be computer and obtain the tea kinds of user's selection or according to enzyme sensor 250
The content for detecting the tea polysaccharide in millet paste to be detected judge the type of tealeaves to be detected.
Referring to Fig. 5, further including circuit board fixed case in the present apparatus, circuit board fixed case is for placing single chip circuit
Plate, circuit board fixed case include battery 310, fan 320, card slot 331, serial ports hole 332 and handle 340；Wherein, battery 310 is
Rechargeable battery 310 can be powered to single chip microcomputer circuit board and fan 320, and charge port 311 is equipped on fixed case, be supplied
Battery 310 charges；Totally four, fan 320, the both ends of fixed case are separately positioned on, it can be quickly to solid by fan 320
Determine to cool down in the cabinet of case；It can be with fixed placement single chip microcomputer circuit board, below fixed case and side by card slot 331
Respectively there is a card slot 331, when installing single chip microcomputer circuit board, first single chip microcomputer circuit board is fixed in following card slot 331, so
Backward fixed case has touching on one side for card slot 331, makes single chip microcomputer circuit board while being stuck in two card slots 331, can be well
Fixed single chip microcomputer circuit board, at the same two serial ports in single chip microcomputer circuit board also with not Jin Ru fixed case side serial ports hole 332,
And the method for taking out single chip microcomputer circuit board is opposite with the fixed sequence of single chip microcomputer circuit board.The card slot of multiple groups wherein can be set
331 and serial ports hole 332, can choose and put into one or more single chip microcomputer circuit board, wherein each circuit board can individually into
Row power supply can test and analyze a variety of test objects, single chip microcomputer circuit board by the single chip microcomputer circuit board of fixed multiple groups
On two serial ports be separately connected computer and sensor group；Handle 340 is respectively set at fixed case both ends, passes through handle 340
It can be convenient user and carry out hand-held fixed case.Fixed case is small and exquisite, easy to carry, and using simple.
It should be noted that being not intended to limit although the various embodiments described above have been described herein
Scope of patent protection of the invention.Therefore, it based on innovative idea of the invention, change that embodiment described herein is carried out and is repaired
Change, or using equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it directly or indirectly will be with
Upper technical solution is used in other related technical areas, is included within scope of patent protection of the invention.
Claims (8)
1. a kind of method for tea leaf quality detection, which comprises the following steps:
Millet paste to be detected is heated, generates tea aroma, the millet paste to be detected is the millet paste for impregnating tealeaves to be detected；
The content that the tea polysaccharide in millet paste to be detected is detected by enzyme sensor judges to be detected according to the content of tea polysaccharide of detection
The type of tealeaves；
Tea aroma composition is obtained by sensor group, the sensor group includes six or more different gas sensors；
The composition for the tea aroma that will acquire is sent to computer；
Computer transfers the quality grade data of tealeaves from database；
The tea aroma composition that will acquire is compared with tea leaf quality level data, obtains the quality grade of tealeaves to be detected.
2. the method for tea leaf quality detection according to claim 1, which is characterized in that described " to be examined by enzyme sensor
The content for surveying the tea polysaccharide in millet paste to be detected judges the type of tealeaves to be detected according to the content of tea polysaccharide of detection " specifically wrap
It includes:
Detect the temperature of millet paste to be detected；
When the temperature for detecting millet paste to be detected reaches 90 degrees Celsius, it is more that the tea in millet paste to be detected is detected by enzyme sensor
Sugared content；
The type of tealeaves to be detected is judged according to the content of tea polysaccharide of detection.
3. the method for tea leaf quality detection according to claim 1, which is characterized in that described " computer is from database
In transfer the quality grade data of tealeaves " specifically include:
According to the type of tealeaves to be detected, computer transfers the quality grade data of the type tealeaves from database.
4. the method for tea leaf quality detection according to claim 1, which is characterized in that " the tea fragrant that will acquire
Gas composition is compared with tea leaf quality level data, obtains the quality grade of tealeaves " include:
The composition for the tea aroma that different gas sensors acquires in real time is generated to different data and curves, by different data
Curve and the quality grade data of the tealeaves of acquisition carry out it is corresponding compare, obtain the quality grade of tealeaves.
5. a kind of device for tea leaf quality detection, which is characterized in that including heating vessel, sensor group, single chip circuit
And computer, the sensor group are connected to single chip circuit, the single chip circuit is connected to computer；
The heating vessel carries out heating to millet paste to be detected and generates tea aroma for holding millet paste to be detected, it is described to
Detecting millet paste is the millet paste for impregnating tealeaves to be detected；
For the sensor group for obtaining tea aroma composition, the sensor group includes six or more different gas sensings
Device；
The single chip circuit is used to the tea aroma ingredient of acquisition being sent to computer；
The computer is used to transfer the quality grade data of tealeaves, and the tea aroma composition and tea that will acquire from database
Leaf quality grade data are compared, and obtain the quality grade of tealeaves；
It further include enzyme sensor, the enzyme sensor is connected to single chip circuit, and the enzyme sensor is examined for single chip circuit
Survey the content of tea polysaccharide in millet paste to be detected.
6. the device for tea leaf quality detection according to claim 5, which is characterized in that it further include temperature sensor, institute
State temperature sensor and detect the temperature of millet paste to be detected for single chip circuit, the single chip circuit be also used to when detect to
The temperature of detection millet paste is when reaching 90 degrees Celsius, detects the content of tea polysaccharide in millet paste to be detected by enzyme sensor, and according to
The content of tea polysaccharide of detection judges the type of tealeaves to be detected.
7. the device for tea leaf quality detection according to claim 5, which is characterized in that the computer is also used to basis
The type of tealeaves to be detected transfers out the quality grade data of the type tealeaves from database.
8. the device for tea leaf quality detection according to claim 5, which is characterized in that the computer is also used to will not
With the composition of tea aroma that acquires in real time of gas sensor generate different data and curves, by different data and curves with obtain
The quality grade data of the tealeaves taken carry out corresponding comparison, obtain the quality grade of tealeaves.
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