CN106908488A - Brown Planthopper insect pest monitoring method and device - Google Patents
Brown Planthopper insect pest monitoring method and device Download PDFInfo
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- CN106908488A CN106908488A CN201710328637.7A CN201710328637A CN106908488A CN 106908488 A CN106908488 A CN 106908488A CN 201710328637 A CN201710328637 A CN 201710328637A CN 106908488 A CN106908488 A CN 106908488A
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- brown planthopper
- linalool
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/12—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluid; of a solid body in dependence upon reaction with a fluid, for detecting components in the fluid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Abstract
The invention provides a kind of Brown Planthopper insect pest monitoring method and device, the monitoring method is one or more in linalool, Monoterpenes β ocimenums and 2 enanthol of the induction brown paddy plant hopper discharged by chemical sensor real-time monitoring paddy rice, is alarmed after one or more in monitoring linalool, Monoterpenes β ocimenums and 2 enanthol exceedes predetermined threshold.Wherein, the chemical sensor is linalool sensor, Monoterpenes β ocimenums sensor or 2 enanthol sensors.Using Brown Planthopper insect pest monitoring method of the invention and device, real-time, automatic, continuous monitoring can be carried out to the VOC of the induction brown paddy plant hopper insect pest of the paddy rice of different growth phases release, timely early warning, the methods such as image processing techniques, Early-warning Model and the Bibliometrics used compared to insect pest early warning in current rice field, method and apparatus of the present invention have preferably ageing.
Description
Technical field
The present invention relates to modern planting industry technology, the pest and disease monitoring technology in modern planting industry is especially related to.
Background technology
Paddy rice is the staple food crop of China, and brown paddy plant hopper etc. is the important pests in Rice Production, and brown back rice plant hopper is that rice flies
One kind of lice.Brown paddy plant hopper has remote habit of migrating, and is the primary insect on the current paddy rice of China and many Asian countries.It is brown to fly
Lice is monophagy insect, can only take food and raise up seed on paddy rice and common wild-rice.
Plant itself can discharge VOC (Volatile Organic in growth and development process
Compounds, VOCs), including alcohols, aldehydes, ketone, esters, mushroom alkenes and aromatics etc., these volatile matters transmission plant body
The information such as part and its physiological situation, plays chemical communication thing in the correlation of plant, phytophagous arthropod and its natural enemy
The effect of matter.The VOCs that paddy rice is discharged in growth course equally has strong inducing action to its insect.Literature research
Report, brown paddy plant hopper is extremely significantly intended to the volatile matter of healthy paddy rice release, and the volatile matter energy of aggrieved heavier paddy rice release
Repellent brown paddy plant hopper；Caused harm with brown paddy plant hopper in the paddy rice VOCs of induction, farnesene (farnesene), gaultherolin (methyl
Salicylate, MeSA) and 2-HEPTANONE (2-heptanone) have repellent action to brown paddy plant hopper, it is and linalool (linalool), single
Terpene substances-β-ocimenum (E- β-ocimene) and 2- enanthol (2-heptanol) show as attracting action to brown paddy plant hopper.
At present, crop pests monitoring and warning lacks ageing, for example, mainly use image in crop pest warning aspect
The methods such as treatment technology, Early-warning Model, Bibliometrics, it is impossible to the relevant information of crop pest is accurately and effectively provided, there is leakage
Report an error the possibility of report, while sufficient opportunity also cannot be created for crop pest preventing and treating.Crop pest improvement aspect mainly passes through
Crop gene improvement, biological control (such as biological species agricultural chemicals), chemical prevention (chemical pesticide) and physical control (light wave, spectrum trapping
Kill disease pest) etc. method, that preventing and controlling need is accurate, timely early-warning and predicting, so as to reduce what insect pest was caused to crop as far as possible
The economic loss destroyed and bring.
The content of the invention
It is an object of the invention to provide a kind of Brown Planthopper insect pest monitoring method and device.
Brown Planthopper insect pest monitoring device of the present invention is used for the real-time, effective of Brown Planthopper insect pest, standard
True early warning, can overcome crop pests monitoring and warning in the prior art to lack ageing problem, be Brown Planthopper insect pest
Preventing and treating and early warning work provide reliable basis.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
One kind is used for Brown Planthopper insect pest real time early warning method, is discharged by chemical sensor real-time monitoring paddy rice
The induction linalool of brown paddy plant hopper, Monoterpenes-β-ocimenum and 2- enanthol in one or more, when monitoring agalloch eaglewood
Alarmed after exceeding predetermined threshold one or more in alcohol, Monoterpenes-β-ocimenum and 2- enanthol.
Wherein, the chemical sensor is linalool sensor, Monoterpenes-β-ocimenum sensor, 2- enanthol biography
Sensor.
The chemical sensor is resistor-type chemical sensor, by detecting that it is to be detected that its resistance variations situation can determine that
The concentration of material.
The basic functional principle of the chemical sensor is：VOC with oxidisability or reproducibility with
After the sensitive layer contact of sensing unit, the electronics or sky of sensitive material in changing sensitive layer by way of contributing or capturing electronics
Cave concentration, using Conductivity formula δ=ep μ, wherein, δ is the electrical conductivity of sensitive material, and e is electronic charge, and p is dense electronics
Degree, μ is electron mobility, and the electrical conductivity of sensitive material is directly proportional to hole concentration, for resistance type sensor, sensitive material
Electrical conductivity is embodied in the change of sensor resistance.Therefore, when VOC is contacted with the sensitive layer of sensor unit
Afterwards, the electrical conductivity of sensitive material is changed, the resistance variations of sensing unit are finally presented as.Further, since three kinds of things to be detected
Matter has alkalescence, from the polymeric material with acidity as core sensitive material, and is combined rear institute by with nano material
The hetero-junctions of formation improves sensitive material to detecting the response performance of material.
Further, methods described also includes pre-processing chemical sensor, and the pretreatment is to chemical sensitisation
Device carries out self calibration, or further, including the data that chemical sensor is obtained carry out analog-to-digital conversion.
The alarm is carried out using alarm, and the alarm can select various alarms commonly used in the art.
Based on the above method, it is a further object of the present invention to provide a kind of for Brown Planthopper insect pest real-time early warning dress
Put.
The Brown Planthopper insect pest monitoring device, the monitoring device includes sensor assembly, the sensor assembly
Including sensor unit and alarm unit；The sensor that the sensor unit is used for linalool sensor, Monoterpenes-
One or more in β-ocimenum sensor, 2- enanthol sensors.
In addition, the Brown Planthopper insect pest monitoring device includes power supply module, for providing electric power for sensor assembly.
Further, the sensor assembly also includes pretreatment unit, and the pretreatment unit has data self calibration
Function, or further, including analog-digital conversion function.
Further, the Brown Planthopper insect pest monitoring device includes three sensor assemblies, the sensor assembly
Including sensor unit and with the one-to-one alarm unit of sensor unit, wherein sensor unit be respectively adopted linalool biography
Sensor, Monoterpenes-β-ocimenum sensor and 2- enanthol sensors.
Sensor unit uses resistor-type chemical sensor, by detecting that its resistance variations situation can determine that thing to be detected
The concentration of matter；Pretreatment unit has the self calibration of detection data and further includes analog-digital conversion function；Warning device
Start immediately when the resistance variations of resistor-type chemical sensor are detected, brown paddy plant hopper insect pest occurs for reminding the rice field to have
It is dangerous.
Particularly, the sensor unit is thin using resistance-type chemical sensor architecture, including substrate, electrode layer and sensitivity
Film layer.
In the sensor unit, substrate is made of silicon/silicon dioxide substrate；Electrode is the metal of interdigitated electrode structure
Electrode, metal material is any one in gold, silver or aluminium；Sensitive thin film layer is made of spin coating or drop coating any one method.
Wherein, the sensitive thin film layer of sensor unit uses polyaniline sensitivity material in the linalool sensor assembly
Material.
Further, the polyaniline sensitive material include polyaniline, polyaniline and graphene complex, polyaniline with
One kind in gold nano grain compound, polyaniline and Graphene/four kinds of gold nano grain compound.
Wherein polyaniline is one kind of macromolecular compound, with special electricity, optical property, it is doped after can have
Electric conductivity and chemical property.After through certain treatment, the various equipment with specific function and material can be obtained, such as can be used as life
The urea enzyme sensor of thing or chemical sensor, electronic field emission source, more traditional lithium electrode material have in charge and discharge process
More excellent reversible electrode material, selective membrane material, antistatic and electromagnetic shielding material, conductive fiber, anti-corrosion material,
Etc..Polyaniline is easy to get because of its raw material having, synthesis technique is simple, chemistry and obtained wide the features such as good environmental stability
General research and application.
Wherein, the sensitive thin film layer of sensor unit uses poly- in the Monoterpenes-β-ocimenum sensor assembly
Siloxy group sensitive material.
Further, the polysiloxane group sensitive material is multiple including polysiloxanes, polysiloxanes and SWCN
Compound, polysiloxanes and graphene quantum dot compound, polysiloxanes and SWCN/graphene quantum dot compound four
One kind in kind.
Wherein, polysiloxanes is that a class is main chain with the Si-O keys for repeating, and the poly- of organic group is directly connected on silicon atom
Compound, wherein, R represents organic group, such as methyl, phenyl etc.；N be silicon atom on connect organic group number (1~3 it
Between)；M is the degree of polymerization (m is not less than 2).
Wherein, the sensitive thin film layer of sensor unit uses polyethylene glycol groups sensitivity material in the 2- enanthol sensor assembly
Material.
Further, polyethylene glycol, polyethylene glycol and zinc-oxide nano are included described in the polyethylene glycol groups sensitive material
Line compound, polyethylene glycol and silver nano-grain compound, polyethylene glycol and zinc oxide nanowire/silver nano-grain compound four
One kind in kind.
Wherein, polyethylene glycol series of products are nontoxic, nonirritant, mildly bitter flavor, with good water solubility, and have with many
Machine thing component has good intermiscibility.They have excellent lubricity, moisture retention, dispersiveness, bonding agent, antistatic additive and soft
Soft dose etc..
Said apparatus can be obtained above-mentioned module assembled using various methods commonly used in the art, and particularly, the present invention enters
One step provides a kind of Brown Planthopper insect pest monitoring device.
The Brown Planthopper insect pest monitoring device includes sensor assembly, power supply module, shell and gas-permeable nets, in shell
Sensor assembly and power supply module are set；The shell is divided into shell and lower casing, and the gas-permeable nets are arranged on lower casing
Between, it is fully contacted the pheromones that paddy rice gives out in order to sensor assembly；Wherein sensor assembly includes sensor unit
And alarm unit；The sensor that the sensor unit is used is linalool sensor, Monoterpenes-β-ocimenum sensing
One or more in device, 2- enanthol sensors.
Further, described device include three sensor assemblies, each sensor assembly respectively include sensor unit and
With the one-to-one alarm unit of sensor unit, wherein sensor unit be respectively adopted linalool sensor, Monoterpenes-
β-ocimenum sensor and 2- enanthol sensors.
Further, the sensor assembly also includes pretreatment unit, and the pretreatment unit has data self calibration
Function, or further, including analog-digital conversion function.
Further, described device includes support, and described support one end is connected with lower casing, for supporting simultaneously adjusting means
Height.
The other end insertion rice field or the connecting base plate of the support, for stabilization device thereon.
The upper shell is used to create works fine environment for sensor, it is to avoid the natural weather situation such as wind and rain is to sensor
The influence of service behaviour；Can select umbrella shape or other conventional shapes, such as hollow cylindrical structure of upper end closed.
The gas-permeable nets can select stainless steel and be made；The power supply module can select battery as power supply.
The support can select various conventional supports, it is preferred that can select support, can such as connect two section hollow steel pipes
Connect, and devise adjustable-height device.In addition, the chassis may be configured as hollow body, so when carrying, weight compared with
Gently, when actually used, water is filled, to increase chassis weight, so that stabilization support described device.
First, by Brown Planthopper insect pest monitoring device of the invention, it is obtained in that following beneficial effect.
First, Brown Planthopper insect pest monitoring device of the invention is induced using chemical sensor in real-time monitoring rice field
The VOC linalool of brown paddy plant hopper insect pest, Monoterpenes-β-ocimenum and 2- enanthol, chemical sensor can be real
Now to the real-time monitoring of above-mentioned VOC, compared to the image procossing skill that insect pest early warning in current rice field is used
The methods such as art, Early-warning Model and Bibliometrics have preferably ageing.
Secondly, Brown Planthopper insect pest monitoring device of the invention can adjust height by adjusting rod, it is adaptable to
The real-time monitoring of the VOC of the induction brown paddy plant hopper insect pest of the paddy rice release of different growth phases, while using height
Dense plastic makes chassis, is easy to moving at any time for monitoring device, therefore monitoring is more accurate.
In addition, three parallel sensor assemblies are each equipped with alarm dress in Brown Planthopper insect pest monitoring device of the invention
Put, once any sensor module detects the VOC of above-mentioned three kinds of inductions brown paddy plant hopper insect pest, start immediately
Warning device, is that the optimistic time is striven in follow-up pest control；Simultaneously because sensor assembly is powered using battery, monitoring dress
The optional position that can be positioned in rice field is put, it is easy to use.
In addition, sensor uses resistor-type chemical sensor, resistance in Brown Planthopper insect pest monitoring device of the invention
Type chemical sensor have it is high to ambiance sensitivity, respond it is stable, low in energy consumption, can work at room temperature, can real-time monitoring,
The advantages of being easy to compatible with microelectronic processing technique；Meanwhile, device architecture preparation process is simple, low cost are adapted to crop field scope
Use.
Brief description of the drawings
Fig. 1 is the structural representation of the Brown Planthopper insect pest monitoring device according to the specific embodiment of the invention.
Fig. 2 is the gas-permeable nets and sensor die of the Brown Planthopper insect pest monitoring device according to the specific embodiment of the invention
The sectional view of block.
Specific embodiment
Below in conjunction with the accompanying drawings, the present invention is elaborated.
The detailed example embodiment of following discloses.However, concrete structure disclosed herein and function detail merely for the sake of
The purpose of example embodiment is described.
It should be appreciated, however, that the present invention is not limited to disclosed particular exemplary embodiment, but covering falls into disclosure model
All modifications, equivalent and alternative in enclosing.In to the description of whole accompanying drawings, identical reference represents identical unit
Part.
Refering to accompanying drawing, structure, ratio, size depicted in this specification institute accompanying drawings etc. are only used to coordinate specification
Disclosed content, so that those skilled in the art understands and reads, is not limited to enforceable restriction bar of the invention
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influenceing
Under effect that the present invention can be generated and the purpose to be reached, all should still fall obtain and can contain in disclosed technology contents
In the range of lid.Meanwhile, position restriction term cited in this specification is merely convenient to understanding for narration, and is not used to
Enforceable scope of the invention is limited, its relativeness is altered or modified, under without essence change technology contents, when being also considered as
The enforceable category of the present invention.
It will also be appreciated that term "and/or" lists any of item including one or more correlations as used in this
With all combinations.It will further be appreciated that it is referred to as " connection " or during " coupled " to another part or unit when part or unit, it
Miscellaneous part or unit are can be directly connected or coupled to, or can also there is intermediate member or unit.Additionally, being used for describing
Between part or unit other words of relation should understand in the same fashion (for example, " between " to " directly between ",
" adjacent " is to " direct neighbor " etc.).
In the specific embodiment of the invention, disclose a kind of for Brown Planthopper insect pest real time early warning method, be to pass through
What chemical sensor real-time monitoring paddy rice was discharged induces linalool, Monoterpenes-β-ocimenum and the 2- enanthol of brown paddy plant hopper
In one or more, exceed pre- one or more in linalool, Monoterpenes-β-ocimenum and 2- enanthol is monitored
Alarmed after determining threshold value.
During paddy growth, the materials such as linalool, Monoterpenes-β-ocimenum and 2- enanthol can be given out naturally,
These material concentrations are higher, and the inducing action to brown paddy plant hopper is stronger, therefore, when monitoring linalool, Monoterpenes-β-sieve
One or more in alkene and 2- enanthol is strangled more than after predetermined threshold, i.e., should send alarm, remind raiser to note expelling parasite.Its
Described in predetermined threshold rule of thumb obtain, or according to the concentration and water of linalool, Monoterpenes-β-ocimenum and 2- enanthol
The relation of the density of brown plant-hopper is chosen.
Wherein, the chemical sensor is linalool sensor, Monoterpenes-β-ocimenum sensor, 2- enanthol biography
Sensor.
The chemical sensor is resistor-type chemical sensor, by detecting that it is to be detected that its resistance variations situation can determine that
The concentration of material.
The basic functional principle of the chemical sensor is：VOC with oxidisability or reproducibility with
After the sensitive layer contact of sensing unit, the electronics or sky of sensitive material in changing sensitive layer by way of contributing or capturing electronics
Cave concentration, using Conductivity formula δ=ep μ, wherein, δ is the electrical conductivity of sensitive material, and e is electronic charge, and p is dense electronics
Degree, μ is electron mobility, and the electrical conductivity of sensitive material is directly proportional to hole concentration, for resistance type sensor, sensitive material
Electrical conductivity is embodied in the change of sensor resistance.Therefore, when VOC is contacted with the sensitive layer of sensor unit
Afterwards, the electrical conductivity of sensitive material is changed, the resistance variations of sensing unit are finally presented as.Further, since three kinds of things to be detected
Matter has alkalescence, from the polymeric material with acidity as core sensitive material, and is combined rear institute by with nano material
The hetero-junctions of formation improves sensitive material to detecting the response performance of material.
Further, methods described also includes pre-processing chemical sensor, and the pretreatment is to chemical sensitisation
Device carries out self calibration, or further, including the data that chemical sensor is obtained carry out analog-to-digital conversion.
The alarm is carried out using alarm, and the alarm can select various alarms commonly used in the art.
Based on the above method, it is a further object of the present invention to provide a kind of for Brown Planthopper insect pest real-time early warning dress
Put.
As shown in Figure 1 is the Brown Planthopper insect pest monitoring device that the specific embodiment of the invention includes.The paddy rice
Brown paddy plant hopper insect pest monitoring device includes upper shell 101, gas-permeable nets 102, lower casing 103, support 104 and chassis 105.The wherein prison
The sensor assembly 201,204 and 205 for surveying device is built in gas-permeable nets 203, and its profile is as shown in Figure 2：Three sensors
Module 201,204 and 205 is evenly distributed in stainless (steel) wire, is respectively linalool sensor assembly 201, and Monoterpenes-β-
Ocimenum sensor assembly 204 and 2- enanthol sensor assembly 205, while including power supply module 202.The sensor assembly
201st, 204 and 205 include sensor unit and with the one-to-one alarm unit of sensor unit.
Wherein, the alarm unit can use Buzzing type alarm.
The upper shell 101 is the hollow cylindrical structure of upper end closed, diameter 8-10cm, height 1-2cm.The upper shell
For creating works fine environment for sensor, it is to avoid influence of the natural weather such as wind and rain situation to working sensor performance；Can
From umbrella shape or other conventional shapes, such as hollow cylindrical structure of upper end closed.
The gas-permeable nets 102 are hollow cylindrical structure, diameter 6-8cm, height 2-3cm.
The lower casing 103 is the hollow cylindrical structure of closing, diameter 6-8cm, height 1-2cm.
The support 104 is made up of the two hollow stainless steel tubes of section, and diameter is respectively 1-2 and 1.5-2.5cm, is highly respectively
20-25cm and 22-27cm.Pedestal upper end is connected with lower casing, and lower end is connected with chassis.
The chassis 105 is used to fix whole monitoring device, and the chassis uses hollow cylindrical structure, overall by plastics system
Into diameter 8-10cm, height 3-5cm, wherein chassis upper end have the water filling port of an a diameter of 1-2cm, are using the monitoring device
When need water filling.So when carrying, lighter in weight when actually used, fills water, to increase chassis weight, so that stabilization
Support described device.
Although it should be noted that refer to various sizes or material in specific embodiment of the invention, this is only
Only it is exemplary, the restriction to protection scope of the present invention can not be constituted.
Upper shell 101 is mainly used for creating works fine environment for sensor assembly 201,204 and 205, it is to avoid wind and rain
Influence Deng natural weather situation to working sensor performance；Middle level gas-permeable nets 102 equally use hollow cylindrical structure, are used for
VOC contact with sensor assembly 201,204 and 205 of paddy rice release；Lower casing 103 is equally using circle
Column construction, main application is to fix sensor assembly 201,204 and 205 and connecting bracket 104.
Especially, support 104 can be adjustable for height, and now support 104 is made up of the two hollow stainless steel tubes of section, therefore
The height of monitoring device can be manually adjusted according to paddy rice growing way, it is ensured that sensor assembly 201,204 and 205 and paddy rice to be monitored
The close contact of VOC.
As shown in Fig. 2 the sensor assembly 201,204 and 205 be positioned in gas-permeable nets 102, on lower casing 103, its
Middle power supply module 202 be located at gas-permeable nets 102 center, and with linalool sensor assembly 201, Monoterpenes-β-sieve
Strangle alkene sensor assembly 204 to be connected with 2- enanthol sensor assembly 205, three sensor assemblies 201,204 and 205 uniformly divide
It is distributed in gas-permeable nets.
The linalool sensor assembly 201, Monoterpenes-β-ocimenum sensor assembly 204 and 2- enanthol are sensed
Device module 205 includes sensor unit, pretreatment unit and warning device respectively, and each sensor die block size is 2 × 2cm2,
Highly it is 2cm.Sensor unit includes substrate, electrode layer and sensitivity using resistance-type chemical sensor architecture type, its structure
The part of film layer three constitutes, and sensor unit is connected to pretreatment unit.
Substrate uses silicon/silicon dioxide substrate in the sensor unit, and size is 1 × 1cm2；Electrode is interdigital electrode
The metal electrode of structure, metal material is any one in gold, silver or aluminium；Sensitive thin film layer is using spin coating or drop coating any one side
Method is made.
The sensor unit of linalool sensor assembly 201 uses polyaniline sensitive material, including polyaniline, polyphenyl
Amine and graphene complex, polyaniline and gold nano grain compound, polyaniline and Graphene/four kinds of gold nano grain compound
In any one.
Wherein, polyaniline is one kind of macromolecular compound, with special electricity, optical property, it is doped after can have
Conductive and chemical property.After through certain treatment, the various equipment with specific function and material can be obtained, such as can conduct
The urea enzyme sensor of biological or chemical sensor, electronic field emission source, more traditional lithium electrode material have in charge and discharge process
There are more excellent reversible electrode material, selective membrane material, antistatic and electromagnetic shielding material, conductive fiber, preserving timber
Material, etc..Polyaniline is easy to get because of its raw material having, synthesis technique is simple, chemistry and obtain the features such as good environmental stability
Extensive research and application.
Sensor unit is using polysiloxane group sensitivity material in the Monoterpenes-β-ocimenum sensor assembly 204
Material, including it is polysiloxanes, polysiloxanes and single-wall carbon nanotube composite, polysiloxanes and graphene quantum dot compound, poly-
Any one in siloxanes and SWCN/four kinds of graphene quantum dot compound.
Wherein, polysiloxanes is that a class is main chain with the Si-O keys for repeating, and the poly- of organic group is directly connected on silicon atom
Compound, wherein, R represents organic group, such as methyl, phenyl etc.；N be silicon atom on connect organic group number (1~3 it
Between)；M is the degree of polymerization (m is not less than 2).
Sensor unit uses polyethylene glycol groups sensitive material, including poly- second two in the 2- enanthol sensor assembly 205
Alcohol, polyethylene glycol and zinc oxide nanowire compound, polyethylene glycol and silver nano-grain compound, polyethylene glycol and zinc oxide nano
Any one in rice noodles/four kinds of silver nano-grain compound.
Wherein, polyethylene glycol series of products are nontoxic, nonirritant, mildly bitter flavor, with good water solubility, and have with many
Machine thing component has good intermiscibility.They have excellent lubricity, moisture retention, dispersiveness, bonding agent, antistatic additive and soft
Soft dose etc..
All things considered, in the Brown Planthopper insect pest monitoring device in the specific embodiment of the invention, sensor unit
Basic functional principle is：After VOC with oxidisability or reproducibility is contacted with the sensitive layer of sensing unit,
The electronics or hole concentration of sensitive material in changing sensitive layer by way of contributing or capturing electronics, using Conductivity formula δ
=ep μ, wherein, δ is the electrical conductivity of sensitive material, and e is electronic charge, and p is electron concentration, and μ is electron mobility, sensitive material
The electrical conductivity of material is directly proportional to hole concentration, and for resistance type sensor, the electrical conductivity of sensitive material is embodied in sensor resistance
Change.Therefore, after VOC is contacted with the sensitive layer of sensor unit, the conductance of sensitive material is changed
Rate, is finally presented as the resistance variations of sensing unit.Further, since three kinds of materials to be monitored have alkalescence, from acidity
Polymeric material as core sensitive material, and sensitive material is improved by the hetero-junctions formed after compound with nano material
Response performance to monitoring material.
Therefore, sensor assembly 201,204 and 205 uses resistor-type in Brown Planthopper insect pest monitoring device of the invention
Chemical sensor, resistor-type chemical sensor have it is high to ambiance sensitivity, respond it is stable, low in energy consumption, can be at room temperature
Work, can real-time monitoring, the advantages of be easy to compatible with microelectronic processing technique；Meanwhile, device architecture preparation process is simple, cost
It is low, it is adapted to crop field scope and uses.
Pretreatment unit includes self calibration module and A/D modular converters in the sensor assembly 201,204 and 205, uses
In sensor cell output signal is calibrated and A/D conversion.
Warning device is alarmed using buzzer in the sensor assembly 201,204 and 205, once pretreatment unit
The resistance variations of sensor unit are detected, buzzer carries out alarm immediately.
Therefore, three parallel sensor assemblies 201,204 and 205 are equal in Brown Planthopper insect pest monitoring device of the invention
Warning device is configured with, once any sensor module detects the volatile organic compound of above-mentioned three kinds of inductions brown paddy plant hopper insect pest
Thing, starts warning device immediately, is that the optimistic time is striven in follow-up pest control；Simultaneously because sensor assembly uses battery to supply
Electricity, the monitoring device can be positioned over the optional position in rice field, easy to use.
It should be noted that above-mentioned implementation method is only the present invention preferably embodiment, it is impossible to be understood as to this
The limitation of invention protection domain, under the premise of without departing from present inventive concept, to any minor variations done of the invention and modification
Belong to protection scope of the present invention.
Claims (10)
1. a kind of Brown Planthopper insect pest monitoring method, it is characterised in that the monitoring method is real-time by chemical sensor
One or more in the linalool, Monoterpenes-β-ocimenum and the 2- enanthol that induce brown paddy plant hopper that monitoring paddy rice is discharged,
Alarmed after one or more in monitoring linalool, Monoterpenes-β-ocimenum and 2- enanthol exceedes predetermined threshold.
2. the Brown Planthopper insect pest monitoring method according to claim 1, it is characterised in that the chemical sensor is
Linalool sensor, Monoterpenes-β-ocimenum sensor or 2- enanthol sensors.
3. the Brown Planthopper insect pest monitoring method according to claim 1, it is characterised in that it is right that methods described also includes
Chemical sensor is pre-processed, and the pretreatment is to carry out self calibration to chemical sensor, or further, including by chemistry
The data that sensor is obtained carry out analog-to-digital conversion.
4. the Brown Planthopper insect pest of a kind of Brown Planthopper insect pest monitoring method according to claim 1-3 any one
Monitoring device, it is characterised in that the monitoring device include sensor assembly, the sensor assembly include sensor unit and
Alarm unit；The sensor that the sensor unit is used for linalool sensor, Monoterpenes-β-ocimenum sensor,
One or more in 2- enanthol sensors.
5. the Brown Planthopper insect pest monitoring device according to claim 4, it is characterised in that the monitoring device is also wrapped
Power supply module is included, for providing electric power for sensor assembly.
6. the Brown Planthopper insect pest monitoring device according to claim 4, it is characterised in that the sensor assembly is also
Including pretreatment unit, the pretreatment unit has data self-calibration function, or further, including analog-digital conversion function.
7. the Brown Planthopper insect pest monitoring device according to claim 4, it is characterised in that described device includes three
Sensor assembly, the sensor assembly include sensor unit and with the one-to-one alarm unit of sensor unit, wherein
Sensor unit is respectively adopted linalool sensor, Monoterpenes-β-ocimenum sensor and 2- enanthol sensors.
8. the Brown Planthopper insect pest monitoring device according to claim 4, it is characterised in that the sensor unit is adopted
Use resistance-type chemical sensor architecture, including substrate, electrode layer and sensitive thin film layer.
9. the Brown Planthopper insect pest monitoring device according to claim 8, it is characterised in that the sensor unit
In, substrate is made of silicon/silicon dioxide substrate；Electrode for interdigitated electrode structure metal electrode, metal material be gold, silver or
In aluminium any one；Sensitive thin film layer is made of spin coating or drop coating any one method.
10. the Brown Planthopper insect pest monitoring device according to claim 4,8 or 9, it is characterised in that the linalool
The sensitive thin film layer of sensor unit uses polyaniline sensitive material in sensor assembly；Wherein, polysiloxane group sensitivity material
Material includes polysiloxanes, polysiloxanes and single-wall carbon nanotube composite, polysiloxanes and graphene quantum dot compound, poly- silicon
One kind in oxygen alkane and SWCN/four kinds of graphene quantum dot compound；
The sensitive thin film layer of sensor unit is quick using polysiloxane group in the Monoterpenes-β-ocimenum sensor assembly
Sense material, wherein, the sensitive thin film layer of sensor unit uses polyaniline sensitive material in the linalool sensor assembly；
Wherein, the polyaniline sensitive material includes that polyaniline, polyaniline and graphene complex, polyaniline and gold nano grain are multiple
One kind in compound, polyaniline and Graphene/four kinds of gold nano grain compound；
The sensitive thin film layer of sensor unit uses polyethylene glycol groups sensitive material in the 2- enanthol sensor assembly, wherein,
Include polyethylene glycol, polyethylene glycol and zinc oxide nanowire compound, polyethylene glycol described in the polyethylene glycol groups sensitive material
With the one kind in silver nano-grain compound, polyethylene glycol and zinc oxide nanowire/four kinds of silver nano-grain compound.
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