CN107991444A - 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
- Publication number
- CN107991444A CN107991444A CN201711215544.XA CN201711215544A CN107991444A CN 107991444 A CN107991444 A CN 107991444A CN 201711215544 A CN201711215544 A CN 201711215544A CN 107991444 A CN107991444 A CN 107991444A
- Authority
- CN
- China
- Prior art keywords
- tea
- detected
- tealeaves
- millet paste
- detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G01N33/143—Beverages containing sugar
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Tea And Coffee (AREA)
Abstract
The present invention relates to a kind of method and device for tea leaf quality detection, the described method 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 soaking tealeaves to be detected；Tea aroma composition is obtained by sensor group, the sensor group includes more than six different gas sensors；The composition of the tea aroma of acquisition is sent to computer；Computer transfers the quality grade data of tealeaves from database；The tea aroma composition of acquisition 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, it is and intelligent, without by being manually detected, reducing due to the problem of cost and artificial detection of artificial detection are easily interfered.
Description
Technical field
The present invention relates to tea leaf quality detection field, more particularly to a kind of method and device for tea leaf quality detection.
Background technology
Tea has body-building, controls the curative effect of medication of 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 detection to tea quality mainly by being manually detected, and need manually to have tea by artificial detection
Abundant understanding, and the personnel for cultivating the tea leaf quality detection of specialty need to pay substantial amounts of cost, and by manually being examined
The problem of survey the quality of tea easily is influenced to cause to evaluate inaccuracy be subject to the condition of the experience of personnel, physiology and psychology.
The content 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 of high cost, be easily subject to personnel experience,
Physiology and psychological aspects influence the method and device for being used for tea leaf quality detection for causing evaluation inaccurate.
To achieve the above object, a kind of method for tea leaf quality detection is inventor provided, is comprised the following steps：
Millet paste to be detected is heated, generates tea aroma, the millet paste to be detected is the tea for soaking tealeaves to be detected
Soup；
Tea aroma composition is obtained by sensor group, the sensor group includes more than six different gas sensings
Device；
The composition of the tea aroma of acquisition is sent to computer；
Computer transfers the quality grade data of tealeaves from database；
The tea aroma composition of acquisition is compared with tea leaf quality level data, obtains quality of tealeaves to be detected etc.
Level.
Further optimization, it is characterised 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 soaked in detection, judges tealeaves to be detected according to the content of tea polysaccharide of detection
Species.
Further optimization, described " content of the tea polysaccharide in millet paste to be detected is soaked in detection, is contained according to the tea polysaccharide of detection
Amount judges the species of tealeaves to be detected " specifically include：
Detect the temperature of millet paste to be detected；
When the temperature for detecting millet paste to be detected reaches 90 degrees Celsius, detected by enzyme sensor in millet paste to be detected
Content of tea polysaccharide；
The species of tealeaves to be detected is judged according to the content of tea polysaccharide of detection.
Further optimization, " computer transfers the quality grade data of tealeaves from database " specifically includes：
According to the species of tealeaves to be detected, computer transfers the quality grade data of the species tealeaves from database.
Further optimization, it is described " the tea aroma composition of acquisition to be 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 is gathered in real time generates different data and curves, will be different
The quality grade data of tealeaves of the data and curves with obtaining carry out the corresponding quality grade for comparing, obtaining 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 is used to hold millet paste to be detected, and heating is carried out to millet paste to be detected and produces tea aroma, institute
Millet paste to be detected is stated to soak the millet paste of tealeaves to be detected；
The sensor group is used to obtain tea aroma composition, and the sensor group includes more than six different air-sensitives and passes
Sensor；
The single chip circuit is used to send the tea aroma component of collection to computer；
The computer is used to transfer the quality grade data of tealeaves from database, and by the tea aroma composition of acquisition
It is compared with tea leaf quality level data, obtains the quality grade of tealeaves.
Further optimization, further includes enzyme sensor, and 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.
Further optimization, further includes temperature sensor, and the temperature sensor is used for single chip circuit and detects tea to be detected
The temperature of soup, the single chip circuit are additionally operable to, when the temperature for detecting millet paste to be detected reaches 90 degrees Celsius, pass by enzyme
Sensor detects the content of tea polysaccharide in millet paste to be detected, and the species of tealeaves to be detected is judged according to the content of tea polysaccharide of detection.
Further optimization, the computer are additionally operable to the species according to tealeaves to be detected, this kind are transferred out from database
The quality grade data of class tealeaves.
Further optimization, the computer are additionally operable to the composition for the tea aroma for gathering different gas sensors in real time
Generate different data and curves, by different data and curves with obtain tealeaves quality grade data carry out it is corresponding compare, obtain
Take the quality grade of tealeaves.
The prior art is different from, above-mentioned technical proposal, produces 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, can precisely obtain the quality grade of tealeaves, and
Intelligence, without by being manually detected, reducing since what the cost and artificial detection of artificial detection were easily interfered asks
Topic.
Brief description of the drawings
Fig. 1 is a kind of flow diagram for the method for being used for tea leaf quality detection described in embodiment；
Fig. 2 is a kind of structure diagram for the device for being used for tea leaf quality detection described in embodiment；
Fig. 3 is a kind of structure diagram of single chip circuit described in embodiment；
Fig. 4 is a kind of structure diagram of sensor group described in embodiment；
Fig. 5 is a kind of structure diagram of circuit fixed case described in embodiment.
Description of reference numerals：
210th, heating module,
220th, sensor group,
230th, single chip circuit,
240th, computer,
250th, enzyme sensor,
260th, temperature sensor,
310th, battery,
311st, charge port,
320th, fan,
331st, card slot,
332nd, serial ports hole,
340th, handle.
Embodiment
To describe the technology contents of technical solution, construction feature, the objects and the effects in detail, below in conjunction with specific reality
Apply example and coordinate attached drawing to be explained in detail.
Referring to Fig. 1, a kind of method for tea leaf quality detection of the present embodiment, comprises the following steps：
Step S110：Millet paste to be detected is heated, generates tea aroma；By infusion of tea to be detected shape in water
Into 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, the composition in tealeaves to be detected is with the volatilization shape of millet paste
Into 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 detection 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 the tea according to detection
The variety classes of leaf carries out replacing the quality grade that the corresponding sensor group detected is detected tealeaves.
Step S130：The composition of the tea aroma of acquisition is sent to computer；Sensor group will gather tea aroma
After component content is converted into voltage signal, transformed voltage signal 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 it is first-class, medium and three kinds inferior, and according to the tealeaves of different qualities correspond to not
Same tea aroma composition.
Step S150：The tea aroma composition of acquisition 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
By the way that the tea aroma composition of acquisition is compared with the tea leaf quality level data transferred from database, according to tealeaves into
Tea leaf quality grade corresponding to part obtain the quality grade of tealeaves, and then detects the quality of tealeaves.
The tea aroma of tealeaves generation after heating is acquired 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 by being manually detected, reducing cost and the artificial detection appearance due to artificial detection
The problem of being vulnerable to interference.
Wherein, sensor group can include the gas sensor of more than six, pass through more than six gas sensors
It can accurately detect the composition in the tea aroma that is produced after heating tea leaves, wherein, gas sensor group is by model
TSG2201, TSG26002, TSG2610, TSG2620, TSG826, TSG821, TSG842, TSG825, TSG880 and TSG813 etc.
Six and the gas sensor composition of the above in gas sensor.The gas sensor detection nitrogen oxides of TSG2201 models,
The gas sensor of TSG26002 models detects the organic solvents such as alcohol, ammonia, halogen, the gas sensor of TSG2610 models
Detect the liquefied gas such as propane, butane；The organic solvents such as the gas sensor detection alcohol of TSG2620 models, TSG826 models
Gas sensor detects aminated compounds, the gas sensor detection hydrogen of TSG821 models, the gas sensing of TSG842 models
Device detects hydrocarbon, the gas sensor detection of the gas sensor detection sulfide, TSG880 models of TSG825 models
The imflammable gas such as food cooking process volatilization gas, the gas sensor detection methane of TSG813 models.
Due to different types of tealeaves, its tea aroma composition detected corresponding to tea leaf quality may different, Ke Yishe
The gas sensor of more than six is put, making choice part gas sensor by the species of tealeaves works, such as detects
During the quality of oolong tea, can select TGS825 sensors, TGS813 sensors, TGS2610 sensors, TGS2602 sensors,
TGS842 sensors and TGS826 sensors.
Wherein, the detection magnitude of voltage 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
Arrive；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, the interval value for obtaining its different components is detected by sensor group, and the result that such as first-class oolong tea detects is：
Its composition section that TGS825 sensors detect is 78-90, its composition section that TGS813 sensors detect is 70-80,
Its composition section that TGS2610 sensors detect is 65-75, its composition section that TGS2602 sensors detect is 60-
Its composition section that 70, TGS842 sensors detect is 50-65, its composition section that TGS826 sensors detect is 41-
53；And the result of medium oolong tea detection is：Its composition section that TGS825 sensors detect is 72-83, and TGS813 is passed
Its composition section that sensor detects is 68-75, its composition section that TGS2610 sensors detect is 62-70, TGS2602
Its composition section that sensor detects is 58-65, its composition section that TGS842 sensors detect is 55-60, TGS826
Its composition section that sensor detects is 33-45；And inferior oolong tea detection structure is：TGS825 sensors detect
Its composition section is 68--85, its composition section that TGS813 sensors detect is 63-70, and TGS2610 sensors detect
Its composition section be 60-65, its composition section that TGS2602 sensors detect is 52-60, and TGS842 sensors detect
Its composition section be 48-55, its composition section that TGS826 sensors detect is 29-35；The result detected 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 the quality grade to tealeaves to be detected is formed infusion of tea to be detected to be detected when being detected in water
Millet paste, tea aroma is produced by being heated to millet paste to be detected, by detecting the tealeaves composition in tea aroma, and by detection
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 the quality grade of a oolong tea of detection, in closed environment, oolong tea is immersed in water
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 passes through TGS825 sensors, TGS813 sensors, TGS2610 sensors, TGS2602 sensors, TGS842
Six kinds of sensors such as sensor and TGS826 sensors pass through the detection of 5 minutes, and the corresponding voltage of sensor detection is changed
The numerical value of 0-100 is converted into, the data for finally getting detection are：Its composition section that TGS825 sensors detect is 82-
Its composition section that 85, TGS813 sensors detect is 72-80, its composition section that TGS2610 sensors detect is 60-
Its composition section that 65, TGS2602 sensors detect is 64-79, its composition section that TGS842 sensors detect is 61-
Its composition section that 66, TGS826 sensors detect is 36-45, and computer carries out the data of acquisition 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 the species of automatic decision tealeaves to be detected, further include step after step silo：Detection immersion is treated
The content of the tea polysaccharide in millet paste is detected, the species 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 is：2-3%, the content of the tea polysaccharide of green tea are：1-
1.5%, the content of the tea polysaccharide of black tea is：0.5-0.1% (degree refers to the ratio for accounting for dry tea weight), and biology passes
Enzyme sensor in sensor can detect 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, and the kind of tealeaves to be detected is may determine that by the content of tea polysaccharide detected in 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, draws the output voltage range of different tealeaves, then the model with programming voltage
The numerical value for being converted into 0-100 is enclosed, transformed data are made normal data, the sugar content and criterion numeral of tealeaves test below
According to comparing, the species of the tealeaves of test is drawn.For example, the normal data of the content of tea polysaccharide of oolong tea, green tea and black tea is divided
It is not：75-93、36-52、10-25；When the species of the tealeaves to be detected in millet paste to be detected is detected, 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 species for obtaining the tealeaves to be detected in millet paste to be detected is oolong tea.
It is more to tea in millet paste to be detected by enzyme sensor and solubility of the tea polysaccharide in 85~90 DEG C of hot water is 76%
The detecting step of sugared content is：
Detect the temperature of millet paste to be detected；
When the temperature for detecting millet paste to be detected reaches 90 degrees Celsius, detected by enzyme sensor in millet paste to be detected
Content of tea polysaccharide；
The species of tealeaves to be detected is judged according to the content of tea polysaccharide of detection.
During heating, its tea polysaccharide is slowly dissolved in millet paste to be detected millet paste to be detected, to millet paste to be detected
Temperature be 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 detects the content of tea polysaccharide in millet paste to be detected, it is to be detected so as to judge exactly
The species of tealeaves to be detected in millet paste.
In the present embodiment, the composition in the tea aroma produced due to heating tea leaves may differ on the different time
Sample, the composition for the tea aroma that computer gathers different gas sensors in real time generates different data and curves, by difference
Data and curves carry out the corresponding quality grade for comparing, obtaining tealeaves with the quality grade data of tealeaves obtained.Pass through difference
Gas sensor carry out in real time collection tea aroma composition, generate different data and curves, then the data and curves by generation
The quality grade data for carrying out the tealeaves with being transferred from database are compared, and then obtain the quality grade of tealeaves.
Wherein, gas sensor by the data conversion of the tea aroma composition of detection into voltage signal by analog-to-digital conversion
After become digital signal and send to computer, computer can be shown by the LABVIEW display interfaces designed, then be passed through
It is programmable to receive and after processing receives data, data are passed to by lnpAry to the parser in Matlab, wherein, point
Analysis algorithm is to realize PCA analyses and LVQ neural metwork trainings and network analysis in Matlab scripts insertion Labview, by dividing
Analyse algorithm to carry out after calculating accordingly the data of collection, by plot function drawing data curves, then pass through correction data
The quality grade data of tealeaves provide the quality grade of tested tealeaves in storehouse.
The sensor of work can be made choice by the display interfaces designed of LABVIEW on computers, you can with
Any one gas sensor can be closed or open by display interface gather the composition of tea aroma, can basis
Need to be detected tea kinds and be configured the sensor of work and be acquired the composition of tea aroma.
Wherein, in order to reduce the time of computer called data from database, according to the species of tealeaves to be detected, calculate
Machine transfers the quality grade data of the species tealeaves from database.Computer carries out transferring the tealeaves kind according to the species of tealeaves
Quality grade data corresponding to class, can both judge the corresponding species of tealeaves exactly, can also judge tealeaves exactly
Quality grade, and according to the species of tealeaves transfer the quality grade data of corresponding tealeaves, computer without 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 that computer obtains the tea kinds of user's selection or detected according to enzyme sensor in millet paste to be detected
The content of tea polysaccharide judge the species 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 is used to hold millet paste to be detected, and heating is carried out to millet paste to be detected and produces tea aroma, institute
Millet paste to be detected is stated to soak the millet paste of tealeaves to be detected；Heating module is equipped with heating vessel, is added for 210 pairs by heating module
In hot vessel heat, 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 component of tea aroma is acquired.Wherein, heating module 210 is connected to single chip circuit 230, leads to
Cross the work that single chip circuit 230 is controlled heating module 210.
The sensor group 220 is used to obtain tea aroma composition；Wherein, sensor group 220 is by different gas sensings
Device group 220 is into the composition being acquired by different gas sensors in tea aroma；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 produced after leaf.Wherein it is possible to according to detection
The variety classes of tealeaves replace the sensor group 220 of corresponding detection and be detected the quality grade of tealeaves.
Referring to Fig. 3, single chip circuit 230 includes 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 is used for will collection
Tea aroma component send to computer 240；The component content for gathering tea aroma is converted into voltage letter by sensor group 220
After number, 230 receiving sensor group 220 of single chip circuit detection voltage data, and converted after controlling analog-digital converter voltage data
For digital signal, transformed digital signal 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.Wherein in single chip circuit 230 using O Europe resistance carry out to digitally and simulation isolate, strengthen anti-interference energy
Power.
The computer 240 is used to transfer the quality grade data of tealeaves from database, and by the tea aroma of acquisition
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 after the voltage signal for receiving the transmission of sensor group 220 judge tea aroma into
Part content, and by the way that the tea aroma composition of acquisition is compared with the tea leaf quality level data transferred from database,
Tea leaf quality grade according to corresponding to tealeaves composition obtain the quality grade of tealeaves, and then detects the quality of tealeaves.
The tea aroma of tealeaves generation after heating is acquired 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 by being manually detected, reducing due to the problem of cost and artificial detection of artificial detection are easily interfered.
Referring to Fig. 4, wherein, sensor group 220 can include the gas sensor of more than six, pass through more than six
Gas sensor can accurately detect composition in the tea aroma that is produced after heating tea leaves, wherein, sensor group 220
By model TSG2201, TSG26002, TSG2610, TSG2620, TSG826, TSG821, TSG842, TSG825, TSG880 and
The gas sensor composition of TSG813.The gas sensor detection nitrogen oxides of TSG2201 models, the air-sensitive of TSG26002 models
The organic solvents such as sensor detection alcohol, ammonia, halogen, the gas sensor of TSG2610 models detect the liquefaction such as propane, butane
Gas；The organic solvents such as the gas sensor detection alcohol of TSG2620 models, the gas sensor detection amine of TSG826 models
Compound, the gas sensor detection hydrogen of TSG821 models, the gas sensor detection hydrocarbon of TSG842 models,
The gas sensor detection sulfide of TSG825 models, the gas sensor detection food cooking process Volatile Gas of TSG880 models
The imflammable gas such as body, the gas sensor detection methane of TSG813 models.
Due to different types of tealeaves, its tea aroma composition detected corresponding to tea leaf quality may different, Ke Yishe
The gas sensor of more than six is put, making choice part gas sensor by the species of tealeaves works, such as detects
During the quality of oolong tea, alcohol sensor, oxycarbide sensor, liquefaction gas sensor, aminated compounds sensing can be selected
Device, sulfide sensor and hydrogen gas sensor.
Wherein, the detection magnitude of voltage 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
Arrive；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, the interval value for obtaining its different components is detected by sensor group, and the result that such as first-class oolong tea detects is：
Its composition section that TGS825 sensors detect is 78-90, its composition section that TGS813 sensors detect is 70-80,
Its composition section that TGS2610 sensors detect is 65-75, its composition section that TGS2602 sensors detect is 60-
Its composition section that 70, TGS842 sensors detect is 50-65, its composition section that TGS826 sensors detect is 41-
53；And the result of medium oolong tea detection is：Its composition section that TGS825 sensors detect is 72-83, and TGS813 is passed
Its composition section that sensor detects is 68-75, its composition section that TGS2610 sensors detect is 62-70, TGS2602
Its composition section that sensor detects is 58-65, its composition section that TGS842 sensors detect is 55-60, TGS826
Its composition section that sensor detects is 33-45；And inferior oolong tea detection structure is：TGS825 sensors detect
Its composition section is 68--85, its composition section that TGS813 sensors detect is 63-70, and TGS2610 sensors detect
Its composition section be 60-65, its composition section that TGS2602 sensors detect is 52-60, and TGS842 sensors detect
Its composition section be 48-55, its composition section that TGS826 sensors detect is 29-35；The result detected 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 the quality grade to tealeaves to be detected is formed infusion of tea to be detected to be detected when being detected in water
Millet paste, tea aroma is produced by being heated to millet paste to be detected, by detecting the tealeaves composition in tea aroma, and by detection
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 the quality grade of a oolong tea of detection, in closed environment, oolong tea is immersed in water
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 passes through TGS825 sensors, TGS813 sensors, TGS2610 sensors, TGS2602 sensors, TGS842
Six kinds of sensors such as sensor and TGS826 sensors pass through the detection of 5 minutes, and the corresponding voltage of sensor detection is changed
The numerical value of 0-100 is converted into, the data for finally getting detection are：Its composition section that TGS825 sensors detect is 82-
Its composition section that 85, TGS813 sensors detect is 72-80, its composition section that TGS2610 sensors detect is 60-
Its composition section that 65, TGS2602 sensors detect is 64-79, its composition section that TGS842 sensors detect is 61-
Its composition section that 66, TGS826 sensors detect is 36-45, and computer carries out the data of acquisition 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 the species of automatic decision tealeaves to be detected, further include enzyme sensor 250, the enzyme sensor 250 connects
Single chip circuit is connected to, the enzyme sensor 250 is used for the content of tea polysaccharide in single chip circuit detection millet paste to be detected.It is different
The content of tea polysaccharide is different in tealeaves, such as：The content of the tea polysaccharide of oolong tea is：2-3%, the content of the tea polysaccharide of green tea
For：1-1.5%, the content of the tea polysaccharide of black tea are：0.5-0.1% (degree refers to the ratio for accounting for dry tea weight), and
Enzyme sensor 250 in biology sensor can detect 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, and tea to be detected is may determine that by the content of tea polysaccharide detected in millet paste
The species of leaf.Wherein it is possible to the content of its tea polysaccharide is detected with enzyme sensor 250 with each 10 parts of the tealeaves of Known Species, according to
Different tealeaves detect the difference of output voltage range with enzyme sensor 250, draw the output voltage ranges of different tealeaves, then with volume
Journey is converted into the scope of voltage the numerical value of 0-100, and transformed data are made normal data, and the test of tealeaves below contains
Sugar amount and normal data compare, and draw the species of the tealeaves of test.For example, the content of tea polysaccharide by oolong tea, green tea and black tea
Normal data be respectively：75-93、36-52、10-25；The species of tealeaves to be detected in millet paste to be detected is detected
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 species 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 temperature sensor 260, the temperature are further included
Sensor 260 is used for the temperature that single chip circuit detects millet paste to be detected, and the single chip circuit is additionally operable 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 species of tealeaves to be detected.For millet paste to be detected during heating, its 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 judge the species of the tealeaves to be detected in millet paste to be detected exactly.Temperature sensor 260 and enzyme are sensed
Device 250 is set in heating vessel.
In the present embodiment, the composition in the tea aroma produced due to heating tea leaves may differ on the different time
Sample, the composition for the tea aroma that computer 240 gathers different gas sensors in real time generate different data and curves, will not
The quality grade data of tealeaves of the same data and curves with obtaining carry out the corresponding quality grade for comparing, obtaining tealeaves.By not
Same gas sensor carries out the composition of collection tea aroma in real time, generates different data and curves, then the data of generation are bent
The quality grade data that line carries out the tealeaves with being transferred from database are compared, and then obtain the quality of tealeaves etc.
Level.
Wherein, gas sensor by the data conversion of the tea aroma composition of detection into voltage signal by analog-to-digital conversion
After become digital signal and send to computer 240, computer 240 can be shown by the LABVIEW display interfaces designed,
Received and after processing receives data by programmable again, data passed to by lnpAry to the parser in Matlab,
Wherein, parser is to realize PCA analyses and LVQ neural metwork trainings and network analysis in Matlab scripts insertion Labview,
The data of collection are carried out after calculating accordingly by parser, by plot function drawing data curves, then by right
Quality grade data than tealeaves in database provide the quality grade of tested tealeaves.Computer 240 is designed by LABVIEW
Display interface can watch the graph curve of the data of each gas sensor collection in real time, and the data of collection can preserve, side
Just whenever checked.
The sensor of work can be made choice by the display interfaces designed of the LABVIEW on computer 240, you can
Can close or open any one gas sensor by display interface gather the composition of tea aroma, Ke Yigen
The composition of tea aroma is acquired according to the sensor for needing to be detected tea kinds and being configured work.
Wherein, in order to reduce the time of the called data from database of computer 240, according to the species of tealeaves to be detected,
Computer 240 transfers the quality grade data of the species tealeaves from database.Computer 240 is adjusted according to the species of tealeaves
The quality grade data corresponding to the tea kinds are taken, can both judge the corresponding species of tealeaves exactly, can also be exactly
Judge the quality grade of tealeaves, and according to the species of tealeaves transfer the quality grade data of corresponding tealeaves, count
Calculation machine 240 need not transfer whole data from database, reduce the time of the called data from database of computer 240,
The judgement of tea kinds wherein to be detected can be that computer obtains 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 species of tealeaves to be detected.
Referring to Fig. 5, further including circuit board fixed case in the present apparatus, circuit board fixed case is used to place 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 with fixed case, supply
Battery 310 charges；Totally four, fan 320, is separately positioned on the both ends of fixed case, can be quickly to solid by fan 320
Determine to cool down in the babinet of case；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
The one side that backward fixed case has card slot 331 is touched, and single chip microcomputer circuit board is stuck at the same time 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 order of fixed single chip microcomputer circuit board.Multigroup card slot can be wherein set
331 and serial ports hole 332, can select to put into one or more single chip microcomputer circuit board, wherein each circuit board can individually into
A variety of detection objects can be detected analysis, single chip microcomputer circuit board by row power supply by the multigroup single chip microcomputer circuit board of fixation
On two serial ports connect computer and sensor group respectively；Handle 340 is set respectively at fixed case both ends, passes through handle 340
User can be facilitated to carry out hand-held fixed case.Fixed case is compact, easy to carry, and using simple.
It should be noted that although the various embodiments described above have been described herein, but not thereby limit
The scope of patent protection of the present invention.Therefore, based on the present invention innovative idea, to embodiment described herein carry out change and repair
Change, or the equivalent structure or equivalent flow shift made using description of the invention and accompanying drawing content, directly or indirectly will be with
Upper technical solution is used in other related technical areas, is included within the scope of patent protection of the present invention.
Claims (10)
- A kind of 1. method for tea leaf quality detection, it is characterised in that comprise the following steps：Millet paste to be detected is heated, generates tea aroma, the millet paste to be detected is the millet paste for soaking tealeaves to be detected；Tea aroma composition is obtained by sensor group, the sensor group includes more than six different gas sensors；The composition of the tea aroma of acquisition is sent to computer；Computer transfers the quality grade data of tealeaves from database；The tea aroma composition of acquisition is compared with tea leaf quality level data, obtains the quality grade of tealeaves to be detected.
- 2. according to claim 1 be used for tea leaf quality detection method, it is characterised in that it is described " to millet paste to be detected into Row heating, generates tea aroma " further include step afterwards：The content of the tea polysaccharide in millet paste to be detected is soaked in detection, and the kind of tealeaves to be detected is judged according to the content of tea polysaccharide of detection Class.
- 3. it is used for the method for tea leaf quality detection according to claim 2, it is characterised in that described " detection immersion is to be detected The content of tea polysaccharide in millet paste, the species of tealeaves to be detected is judged according to the content of tea polysaccharide of detection " specifically include：Detect the temperature of millet paste to be detected；When the temperature for detecting millet paste to be detected reaches 90 degrees Celsius, the tea detected by enzyme sensor in millet paste to be detected is more Sugared content；The species of tealeaves to be detected is judged according to the content of tea polysaccharide of detection.
- 4. it is used for the method for tea leaf quality detection according to claim 2, it is characterised in that described " computer is from database In transfer the quality grade data of tealeaves " specifically include：According to the species of tealeaves to be detected, computer transfers the quality grade data of the species tealeaves from database.
- 5. it is used for the method for tea leaf quality detection according to claim 1, it is characterised in that described " by the tea fragrant of acquisition 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 is gathered in real time generates different data and curves, by different data The quality grade data of tealeaves of the curve with obtaining carry out the corresponding quality grade for comparing, obtaining tealeaves.
- 6. a kind of device for tea leaf quality detection, it is characterised 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 is used to hold millet paste to be detected, and heating is carried out to millet paste to be detected and produces tea aroma, described to treat Millet paste is detected to soak the millet paste of tealeaves to be detected；The sensor group is used to obtain tea aroma composition, and the sensor group includes more than six different gas sensings Device；The single chip circuit is used to send the tea aroma component of collection to computer；The computer is used to transfer the quality grade data of tealeaves from database, and by the tea aroma composition and tea of acquisition Leaf quality grade data are compared, and obtain the quality grade of tealeaves.
- 7. it is used for the device of tea leaf quality detection according to claim 6, it is characterised in that enzyme sensor is further included, it is described Enzyme sensor is connected to single chip circuit, and the enzyme sensor is used for the tea polysaccharide that single chip circuit is detected in millet paste to be detected and contains Amount.
- 8. it is used for the device of tea leaf quality detection according to claim 7, it is characterised in that further include temperature sensor, institute State temperature sensor and be used for the temperature that single chip circuit detects millet paste to be detected, the single chip circuit is additionally operable to detect and treats The temperature of detection millet paste is when reaching 90 degrees Celsius, and the content of tea polysaccharide in millet paste to be detected is detected by enzyme sensor, and according to The content of tea polysaccharide of detection judges the species of tealeaves to be detected.
- 9. it is used for the device of tea leaf quality detection according to claim 7, it is characterised in that the computer is additionally operable to basis The species of tealeaves to be detected, transfers out the quality grade data of the species tealeaves from database.
- 10. according to claim 6 be used for tea leaf quality detection device, it is characterised in that the computer be additionally operable to by The composition of the tea aroma that different gas sensors gathers in real time generates different data and curves, by different data and curves with The quality grade data of the tealeaves of acquisition carry out corresponding to comparison, obtain the quality grade of tealeaves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215544.XA CN107991444B (en) | 2017-11-28 | 2017-11-28 | A kind of method and device for tea leaf quality detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711215544.XA CN107991444B (en) | 2017-11-28 | 2017-11-28 | A kind of method and device for tea leaf quality detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107991444A true CN107991444A (en) | 2018-05-04 |
| CN107991444B CN107991444B (en) | 2019-02-26 |
Family
ID=62033710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711215544.XA Active CN107991444B (en) | 2017-11-28 | 2017-11-28 | A kind of method and device for tea leaf quality detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107991444B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115165509A (en) * | 2022-09-05 | 2022-10-11 | 泉州海关综合技术服务中心 | Tea water extract detection method and system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134850A (en) * | 2013-03-01 | 2013-06-05 | 河南农业大学 | Tea quality rapid detection apparatus and detection method based on characteristic fragrance |
| CN104122308A (en) * | 2014-07-15 | 2014-10-29 | 浙江工商大学 | Difference degree calculation method and tea quality identification method based on electronic tongue detection |
| CN106018511A (en) * | 2016-05-27 | 2016-10-12 | 北京科技大学 | Method and system for screening electronic nose sensor in tea grade identification |
| CN107273421A (en) * | 2017-05-16 | 2017-10-20 | 浙江大学 | A kind of pattern-recognition detection method of high accuracy tea aroma type and quality |
-
2017
- 2017-11-28 CN CN201711215544.XA patent/CN107991444B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103134850A (en) * | 2013-03-01 | 2013-06-05 | 河南农业大学 | Tea quality rapid detection apparatus and detection method based on characteristic fragrance |
| CN104122308A (en) * | 2014-07-15 | 2014-10-29 | 浙江工商大学 | Difference degree calculation method and tea quality identification method based on electronic tongue detection |
| CN106018511A (en) * | 2016-05-27 | 2016-10-12 | 北京科技大学 | Method and system for screening electronic nose sensor in tea grade identification |
| CN107273421A (en) * | 2017-05-16 | 2017-10-20 | 浙江大学 | A kind of pattern-recognition detection method of high accuracy tea aroma type and quality |
Non-Patent Citations (4)
| Title |
|---|
| HE WEI等: "Evaluation of Chinese tea by the electronic tongue: Correlation with sensory properties and classification according to geographical origin and grade level", 《FOOD RESEARCH INTERNATIONAL》 * |
| 史波林等: "西湖龙井茶品质的智能嗅觉识别", 《农业机械学报》 * |
| 梁月荣: "《茶资源综合利用》", 30 November 2013 * |
| 陈婷等: "基于电子鼻技术对云南普洱熟茶的香气品质判别", 《西南农业学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115165509A (en) * | 2022-09-05 | 2022-10-11 | 泉州海关综合技术服务中心 | Tea water extract detection method and system |
| CN115165509B (en) * | 2022-09-05 | 2022-11-11 | 泉州海关综合技术服务中心 | Tea water extract detection method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107991444B (en) | 2019-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104266927B (en) | Method and device for rapidly and objectively distinguishing real and counterfeit cigarettes | |
| CN104586407B (en) | Multi-parameter physiological indication detection device and detection method thereof | |
| Grassi et al. | Stomatal, mesophyll conductance and biochemical limitations to photosynthesis as affected by drought and leaf ontogeny in ash and oak trees | |
| US6813575B2 (en) | Portable computer control for cooking appliances and method of using | |
| CN107595102A (en) | The control method of cooking apparatus, device and system, storage medium, processor | |
| CN102338780B (en) | Method for discriminating cigarette brands | |
| CN108061691A (en) | A kind of method of reconstituted tobacco quality stability between evaluation batch | |
| CN107991444B (en) | A kind of method and device for tea leaf quality detection | |
| CN109781949A (en) | A kind of method of discrimination in the tealeaves source area of view-based access control model, smell and sense of taste sensor information fusion | |
| CN104122308A (en) | Difference degree calculation method and tea quality identification method based on electronic tongue detection | |
| Medlyn et al. | Linking leaf and tree water use with an individual-tree model | |
| CN101685092B (en) | Method for judging alcoholization quality of flue-cured tobacco by pH detection value of tobacco leaf | |
| CN109297963A (en) | Soil image acquisition equipment, soil water-containing amount detection systems and detection method | |
| CN105891431A (en) | Linseed oil quality detection method | |
| CN109324016A (en) | A kind of determination method of redried odor type style | |
| CN105698865B (en) | A kind of production of cigarettes quality detecting data acquisition method and system | |
| CN103245625A (en) | Method for nondestructive detection on maturity of fresh flue-cured tobacco leaves | |
| CN209247786U (en) | A kind of division of endocrinology's urine tester | |
| CN108918581A (en) | Non-invasive vegetable and fruit detection device and grading method thereof | |
| CN108387795A (en) | A kind of Intelligentized method of Space Pyrotechnics Devices product ignition test system | |
| CN209485904U (en) | A kind of oil content of oil shale apparatus for automatically measuring | |
| CN107490778A (en) | A kind of multifactor quantitative analysis method of error in dipping influence factor | |
| CN105758897A (en) | White peony fragrance grade discriminating method based on electronic nose detection information | |
| CN201044820Y (en) | Apparatus for detecting duration of Chinese medicine process | |
| CN205656746U (en) | Broadband power line carrier meter -copy collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |