CN105352899A - Decision-making method for variable spraying window phase based on reflection spectrum - Google Patents
Decision-making method for variable spraying window phase based on reflection spectrum Download PDFInfo
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- CN105352899A CN105352899A CN201510702602.6A CN201510702602A CN105352899A CN 105352899 A CN105352899 A CN 105352899A CN 201510702602 A CN201510702602 A CN 201510702602A CN 105352899 A CN105352899 A CN 105352899A
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- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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Abstract
The invention relates to the technical field of agriculture, and especially relates to a decision-making method for a variable spraying window phase based on reflection spectrum. The method comprises the following steps: installing multi-group control test crops in a movable experiment case, wherein, the multi-group control test crops comprise blank control groups and disease control groups; acquiring normal spectrum of the blank control group and respective spectrum of the blank control group after variable spraying by a spectrometer; respectively acquiring characteristic spectrums of each disease control group by the spectrometer; then combining the feedback spectrum information by a computer control system to establish a database of the characteristic spectrums, obtaining different disease degree spectrums; respectively obtaining the respective spectrum of each disease control group after variable spraying by the spectrometer, performing an evaluation test on drug effect, and thereby obtaining the optimum window phase for preventing and treating crops by an agent; and verifying the different disease degree spectrums according to the optimum window phase to ensure the accuracy of test data.
Description
Technical field
The present invention relates to agricultural technology field, particularly relate to a kind of variable farm chemical applying window phase decision-making technique based on reflectance spectrum.
Background technology
At present, provide an important direction in future developed rapidly as agricultural of precision agriculture, accuracy pesticide applying is the important research direction of precision agriculture, the consumption of agricultural chemicals can be saved significantly by accuracy pesticide applying, improve the effective rate of utilization of agricultural chemicals, improve the demand of crop to agricultural chemicals, traditional indifference dispenser of comparing, can save consumption over half simultaneously.Because the distinctiveness of crop pest is not considered in traditional dispenser, therefore cannot spatially with on the time segment, extensive dispenser brings many harm to environment.
Summary of the invention
(1) technical matters that will solve
The technical problem to be solved in the present invention there is provided a kind of variable farm chemical applying window phase decision-making technique based on reflectance spectrum, and making can the spectrum of Obtaining Accurate crop different diseases degree, for dispenser decision-making provides data-guiding accurately.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of variable farm chemical applying window phase decision-making technique based on reflectance spectrum, it comprises the steps:
S1, be arranged in removable experimental box by organizing control test crop, wherein this many groups control test crop comprises the blank group of not catching an illness the catch an illness control group different with inoculation degree of disease more;
S2, the normal spectrum being obtained described blank group by spectrometer and the respective spectrum of this blank group after variable farm chemical applying, and the spectral information of acquisition is fed back to computer control system;
S3, obtained respectively by spectrometer each control group of catching an illness characteristic spectrum and feed back in computer control system; Then the spectral information fed back in computer control system integrating step S2 sets up the database of characteristic spectrum, and draws different diseases degree spectrum;
S4, obtain each the respective spectrum of control group after variable farm chemical applying of catching an illness respectively by spectrometer, then evaluation test is carried out to drug effect, thus draw the best window phase that medicament is prevented and treated crop;
S5, according to the best window phase, different diseases degree spectrum to be verified, to ensure the accuracy of test data.
Wherein, described in control group of catching an illness be set to three groups, it is divided into control group of catching an illness, medium control group and the high control groups of catching an illness of catching an illness such as low according to inoculation degree of disease; In the described control group of catching an illness such as low, disease and pest inoculation degree is 10-20%, and in described medium control group of catching an illness, disease and pest inoculation degree is 20-60%, and in described high control group of catching an illness, disease and pest inoculation degree is more than 60%.
Wherein, carry out spectroscopic test indoor and outdoor to how organize control test crop respectively by removable experimental box, to show that indoor and outdoor environment is on the impact of this test.
Wherein, the bottom of described removable experimental box is provided with road wheel, and is respectively equipped with light hole at the top of removable experimental box and sidepiece.
Wherein, removable coordinate table is provided with in described removable experimental box; Described removable coordinate table is for placing many group control test crops, and it carries out position and moves under the control of described computer control system.
Wherein, by variable farm chemical applying mechanism, variable farm chemical applying is carried out to blank group and control group of catching an illness; Described variable farm chemical applying mechanism comprises at least three medicine-chests, pressure unit and variable farm chemical applying module; Described variable farm chemical applying module is connected with described computer control system, for driving the medicament in each medicine-chest to mix in pressure unit, and mixed medicament is sprayed on many group control test crops.
Wherein, the below of described spectrometer is provided with vibroshock, avoids spectrometer to occur error in moving process by vibroshock.
Wherein, described spectrometer is connected with spectroscopic probe head and integrating sphere is popped one's head in, and wherein, spectroscopic probe head is arranged in the horizontal rail above many group control test crops, for gathering canopy spectra and blade single-point spectrum; Measure blade single-point spectral value time, popped one's head in by integrating sphere measure in the middle part of blade tip, blade respectively, root of blade 3 spectrum.
Wherein, described horizontal rail is connected with drive motor, and described drive motor is connected with described computer control system, carries out position move for driving described horizontal rail.
(3) beneficial effect
Technique scheme of the present invention has following beneficial effect: the present invention adopts reflectance spectrometry can the spectrum of Obtaining Accurate crop different diseases degree, variable farm chemical applying control is carried out after the spectrum gathering crop, spectrum monitoring is carried out to the crop after dispenser simultaneously, the change of crop internal physiological index is drawn by the change of key feature spectrum, thus draw the best window phase that medicament is prevented and treated crop, for actual dispenser decision-making, there is very important directive significance.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention variable farm chemical applying spectral detector;
Fig. 2 is the functional-block diagram of the embodiment of the present invention based on the variable farm chemical applying window phase decision-making technique of reflectance spectrum.
Wherein, 1: pressure unit; 2: medicine-chest; 3: variable farm chemical applying module; 4: integrating sphere is popped one's head in; 5: spectroscopic probe head; 6: light hole; 7: horizontal rail; 8: high control group of catching an illness; 9: medium control group of catching an illness; 10: the control group of catching an illness such as low; 11: blank group; 12: removable coordinate table; 13: computing machine; 14: vibroshock; 15: spectrometer; 16: controller.
Embodiment
Below in conjunction with drawings and Examples, embodiments of the present invention are described in further detail.Following examples for illustration of the present invention, but can not be used for limiting the scope of the invention.
In describing the invention, except as otherwise noted, the implication of " multiple " is two or more; Term " on ", D score, "left", "right", " interior ", " outward ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " etc. only for describing object, and can not be interpreted as instruction or hint relative importance.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
As shown in Figure 1-2, the present embodiment provides a kind of variable farm chemical applying window phase decision-making technique based on reflectance spectrum, and it comprises the steps:
S1, be arranged in removable experimental box by organizing control test crop, wherein this many groups control test crop comprises the blank group 11 of not catching an illness the catch an illness control group different with inoculation degree of disease more; Preferably, control group of catching an illness is set to three groups, and it is divided into control group 10 of catching an illness, medium control group 9 and the high control groups 8 of catching an illness of catching an illness such as low according to inoculation degree of disease; In the control group 10 of catching an illness such as low, disease and pest inoculation degree is 10-20%, and in medium control group 9 of catching an illness, disease and pest inoculation degree is 20-60%, and in high control group 8 of catching an illness, disease and pest inoculation degree is more than 60%.
S2, the normal spectrum being obtained blank group 11 by spectrometer 15 and the respective spectrum of this blank group 11 after variable farm chemical applying, and these spectrum obtained are fed back in computer control system.This blank group 11, for eliminating the impact of irrelevant variable on experimental result, the confidence level of Enhancement test result, also can help to remove the error information in test simultaneously.
S3, obtain the characteristic spectrum of each control group of catching an illness respectively by spectrometer 15 and feed back to computer control system, and by computer control system, each spectrum obtained in this characteristic spectrum and step S2 is carried out operational analysis, set up the database of characteristic spectrum; Different diseases degree spectrum is drawn by the change of analytical characteristic spectrum in this database; Be understandable that, the disease and pest gradient of infection analysis software in computer control system can be adopted to carry out analyzing and processing to above-mentioned spectrum picture, drawn the sensitivity spectrum of this crop by the change of spectrum characteristic parameter.
S4, obtain each the respective spectrum of control group after variable farm chemical applying of catching an illness respectively by spectrometer 15, and evaluation test is carried out to drug effect, to draw the best window phase of each control group dispenser of catching an illness; Concrete, when carrying out the evaluation test of variable farm chemical applying drug effect to control group of catching an illness, can analyze from the catch an illness drug effect of phase variable farm chemical applying of difference, the change of crop internal physiological index is drawn by the change of key feature spectrum, thus draw the best window phase that medicament is prevented and treated crop, that is, the spraying time of best dispenser and formulation rate.
S5, according to the best window phase of dispenser, different diseases degree spectrum to be verified, to guarantee the accuracy of different diseases degree spectrum, thus provide data-guiding accurately for dispenser decision-making.That is, according to best spraying time and formulation rate, the plant to different diseases degree spectrum carries out dispenser checking, thus judges that whether this different diseases degree spectrum is accurate.
Respectively to how organize control test crop spectroscopic test is carried out indoor with outdoor by removable experimental box, to show that indoor and outdoor environment is on the impact tested in the present embodiment.Meanwhile, the impact of external interference factor effectively can be removed when outdoor environment is tested.
In addition, also disclose a kind of variable farm chemical applying spectral detector based on the above method, it comprises: removable experimental box, computer control system, spectrometer 15 and variable farm chemical applying mechanism; Many group control test crops can be provided with in this removable experimental box; Horizontal rail 7 is provided with above this many groups control test crop; Described variable farm chemical applying mechanism is used for carrying out variable farm chemical applying to many group control test crops; Described spectrometer 15 is connected with spectroscopic probe head 5, and described spectroscopic probe head 5 is arranged in horizontal rail 7 movably, for gathering the spectrum of many group control test crops and feeding back to described computer control system.
Concrete, this removable experimental box is the cover body of windproof printing opacity, is provided with road wheel in the bottom of removable experimental box, is respectively equipped with light hole 6 at the top of removable experimental box and sidepiece.
And be provided with removable coordinate table 12 in this removable experimental box, removable coordinate table 12 for placing many group control test crops, and carries out position and moves under the control of computer control system.
In specific implementation process, carry out variable farm chemical applying by the control group of catching an illness of variable farm chemical applying mechanism to blank group 11 and many group different diseases degree; Wherein, variable farm chemical applying mechanism comprises at least three medicine-chests 2, pressure unit 1 and variable farm chemical applying module 3; Variable farm chemical applying module 3 is connected with computer control system, mixes in pressure unit 1 for driving the medicament in each medicine-chest 2; Then mixed medicament is sprayed on many group control test crops by controlled pressure unit 1.
Such as: the quantity of this medicine-chest 2 can be specially three, three kinds of different agricultural chemicals or insecticides adjuvant can be put, mixed in pressure unit 1 by three medicine-chest 2 medicaments according to programmed control, variable farm chemical applying module 3 is as the mixing of program of lower computer Direct driver three kinds of medicaments.
In addition, the below of spectrometer 15 is provided with vibroshock 14, the error avoiding spectrometer 15 to bring in moving process by vibroshock 14.
And spectrometer 15 is connected with spectroscopic probe head 5 and pops one's head in 4 with integrating sphere, wherein, spectroscopic probe head 5 is arranged in the horizontal rail 7 above many group control test crops, for gathering canopy spectra and blade single-point spectrum; When measuring blade single-point spectral value, 4 measuring in the middle part of blade tip, blade respectively by integrating sphere probe, root of blade 3 spectrum, carrying out, all behind side and tolerance computing, drawing the spectral value of blade single-point to 3 spectrum.
And horizontal rail 7 is connected with drive motor, and drive motor is connected with computer control system, carries out position for driving horizontal rail 7 and move.The controller 16 that computer control system comprises computing machine 13 and is connected with computing machine 13, computing machine 13 is connected with spectrometer 15, variable farm chemical applying mechanism respectively, controller 16 is arranged on the outside of removable experimental box, for driving the device in experimental box, such as: by the motor movement in cable drive horizontal rail 7, thus drive spectroscopic probe head 5 carry out action.
In sum, the present invention carries out fast accurate test to variable farm chemical applying various medicaments and auxiliary agent mixing, reflectance spectrometry is adopted to obtain the reflectance spectrum of test crop, after Model Matching being carried out to the spectrum of crop by computing machine, draw variable farm chemical applying prescription map, test platform carries out the combination of dose and the selection of auxiliary agent according to model, the absorption of liquid at blade surface is improved by auxiliary agent, spectrum monitoring is carried out to the crop after dispenser simultaneously, the change of crop internal physiological index is drawn by the change of key feature spectrum, thus draw the best window phase that medicament is prevented and treated crop, for actual dispenser decision-making, there is very important directive significance.
Embodiments of the invention provide in order to example with for the purpose of describing, and are not exhaustively or limit the invention to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (9)
1., based on a variable farm chemical applying window phase decision-making technique for reflectance spectrum, it is characterized in that, comprise the steps:
S1, be arranged in removable experimental box by organizing control test crop, wherein this many groups control test crop comprises the blank group of not catching an illness the catch an illness control group different with inoculation degree of disease more;
S2, the normal spectrum being obtained described blank group by spectrometer and the respective spectrum of this blank group after variable farm chemical applying, and the spectral information of acquisition is fed back to computer control system;
S3, obtained respectively by spectrometer each control group of catching an illness characteristic spectrum and feed back in computer control system; Then the spectral information fed back in computer control system integrating step S2 sets up the database of characteristic spectrum, and draws different diseases degree spectrum;
S4, obtain each the respective spectrum of control group after variable farm chemical applying of catching an illness respectively by spectrometer, then evaluation test is carried out to drug effect, thus draw the best window phase that medicament is prevented and treated crop;
S5, according to the best window phase, different diseases degree spectrum to be verified, to ensure the accuracy of test data.
2. the variable farm chemical applying window phase decision-making technique based on reflectance spectrum according to claim 1, it is characterized in that, described control group of catching an illness is set to three groups, and it is divided into control group of catching an illness, medium control group and the high control groups of catching an illness of catching an illness such as low according to inoculation degree of disease; In the described control group of catching an illness such as low, disease and pest inoculation degree is 10-20%, and in described medium control group of catching an illness, disease and pest inoculation degree is 20-60%, and in described high control group of catching an illness, disease and pest inoculation degree is more than 60%.
3. the variable farm chemical applying window phase decision-making technique based on reflectance spectrum according to claim 1, it is characterized in that, spectroscopic test is carried out indoor and outdoor to how organize control test crop respectively, to show that indoor and outdoor environment is on the impact of this test by removable experimental box.
4. the variable farm chemical applying window phase decision-making technique based on reflectance spectrum according to claim 1, it is characterized in that, the bottom of described removable experimental box is provided with road wheel, and is respectively equipped with light hole at the top of removable experimental box and sidepiece.
5. the variable farm chemical applying window phase decision-making technique based on reflectance spectrum according to claim 4, is characterized in that, be provided with removable coordinate table in described removable experimental box; Described removable coordinate table is for placing many group control test crops, and it carries out position and moves under the control of described computer control system.
6. the variable farm chemical applying window phase decision-making technique based on reflectance spectrum according to claim 1, is characterized in that, carry out variable farm chemical applying by variable farm chemical applying mechanism to blank group and control group of catching an illness; Described variable farm chemical applying mechanism comprises at least three medicine-chests, pressure unit and variable farm chemical applying module; Described variable farm chemical applying module is connected with described computer control system, for driving the medicament in each medicine-chest to mix in pressure unit, and mixed medicament is sprayed on many group control test crops.
7. the variable farm chemical applying window phase decision-making technique based on reflectance spectrum according to claim 1, it is characterized in that, the below of described spectrometer is provided with vibroshock, avoids spectrometer to occur error in moving process by vibroshock.
8. the variable farm chemical applying window phase decision-making technique based on reflectance spectrum according to claim 7, it is characterized in that, described spectrometer is connected with spectroscopic probe head and integrating sphere is popped one's head in, wherein, spectroscopic probe head is arranged in the horizontal rail above many group control test crops, for gathering canopy spectra and blade single-point spectrum; Measure blade single-point spectral value time, popped one's head in by integrating sphere measure in the middle part of blade tip, blade respectively, root of blade 3 spectrum.
9. the variable farm chemical applying window phase decision-making technique based on reflectance spectrum according to claim 8, it is characterized in that, described horizontal rail is connected with drive motor, and described drive motor is connected with described computer control system, carries out position move for driving described horizontal rail.
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| CN105897920A (en) * | 2016-05-27 | 2016-08-24 | 北京农业信息技术研究中心 | Crop monitoring analysis method and system |
| CN107144542A (en) * | 2017-03-24 | 2017-09-08 | 泛联尼塔生态环境建设股份有限公司 | A kind of intelligent monitoring system of Landscape Construction |
| CN108935413A (en) * | 2018-08-24 | 2018-12-07 | 浙江大学 | A kind of device and method that the blade face medicine based on plant space prescription map sprays |
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| CN105352899B (en) | 2017-12-05 |
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