CN105181595A - Plant leaves health monitoring system based on visual image spectrum detection technology - Google Patents
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Abstract
The present invention relates to a plant leaves health monitoring system based on visual image spectrum detection technology. The system includes an image spectrum detection unit, an illumination component and a first camera obscura. The image spectrum detection unit and the illumination component are mounted within the first camera obscura. The image spectrum detection component includes a lenses, a beam splitting cube, an area array CCD camera, a DMD digital micromirror component, a convert lens group, a fiber optic coupler, optical fiber, an optical fiber spectrograph and a computer; and the area array CCD camera, DMD digital micromirror component and the optical fiber spectrograph are connected to the computer; and the optical fiber spectrograph is connected to the optical fiber coupler through fibers. The detection system provided by the present invention does not require spectrum measurement and storage of all the pixels, or spectral-dimensional scanning, so as to effectively improve the detection speed. By the high-precision optical fiber spectrograph, wide spectrum measurement can be realized, and at the same time the spectrum resolution can be raised to delta lambda/lambda=0.0001 magnitude.
Description
Technical field
The present invention relates to agriculture field, relate to plant leaf blade health detecting system, particularly a kind of plant leaf blade health detecting system based on visual image spectrographic detection technology.
Background technology
Plant pest is the No.1 natural enemy of plant growth, the Quality and yield of industrial crops not only can be caused to decline, the chemicalss such as agricultural chemicals also can be caused without dropping in a large number targetedly, the consequence caused not only damages normal plants, and brings the problem of the harm humans health such as residues of pesticides, human body heavy metalions accumulation.Therefore how making detection to ill plant fast and accurately, realize for formula treatment and prevention, is that the research of agriculture field is instantly popular.
Conventional needle mainly contains two kinds to the mode that plant pest detects, and one is by artificial judgment, and two is detected by enzymatic activity chemistry, and these two kinds of modes all exist shortcoming.By artificial judgment easily by oneself factor and external inside even from weather, as the subjective and objective factor such as health status, sunshine lighting situation of testing staff self; Chemical detection is then high to the technical requirement of user, often needs to pluck Live leaf simultaneously and carries out Testing in vitro, ageing poor, and destroys Live leaf, can not reach the requirement of Non-Destructive Testing.
Healthy green plants, the energy of leaf meeting strong absorption blue area and red sector under the irradiation of visible ray, and strong reflection Green Zone energy.Can reduce by the plant of disease and pest and even stop chlorophyllous generation, this causes chlorophyllous blue area and red sector absorption band to weaken, " red sector position " will move to shortwave direction, therefore " red sector position " can become the important spectral signature parameter of phyto-indicator by disease and pest.
Multispectral or high light spectrum image-forming is utilized to be that current plant pest detects two kinds of comparatively conventional Dynamic Non-Destruction Measurements.As far back as the sixties in 20th century, multi-optical spectrum imaging technology just has scholar to propose, but this technology only can several wave bands of simple detection visible ray and near infrared region, and spectral resolution only has Δ λ/λ=0.1 order of magnitude, and this cannot meet the early stage prevention testing demand of plant pest; High light spectrum image-forming technology is compared multispectral, and detectable spectral range increases greatly, can at continuous acquisition image in comparatively wide spectral range, and spectral resolution is also promoted to Δ λ/λ=0.01 order of magnitude.But image spectrum data formed by high light spectrum image-forming are mass data sources of collection of illustrative plates unification, size exponential increase with the raising of the spectral resolution order of magnitude of image spectrum data, data store and com-parison and analysis difficulty, simultaneously, high spectrum image detects needs the scanning carrying out spectrum dimension, and the speed therefore detected is comparatively slow, and this stores for data and analyzes, especially for the occasion that data analysis requirement of real-time is higher, be a very large difficulty and challenge.
And in fact, the detection for plant pest does not need all to detect all blades of whole strain plant, often only detection analysis need be carried out to one or several characteristic area on leaf targetedly.
Summary of the invention
The present invention solves the problem that the existing plant health diagnostic system speed of detection based on spectrographic detection is slow, lack of resolution, data store and analysis is difficult, provide a kind of plant leaf blade health detecting system based on visual image spectrographic detection technology, this system is without the need to carrying out spectral measurement to all pixels, which not only improves single speed of detection, also spectral resolution can be brought up to Δ λ/λ=0.0001 order of magnitude, meet the accuracy requirement of plant early stage disease and pest prevention testing.
For realizing above goal of the invention, the technical scheme of employing is:
Based on a plant leaf blade health detecting system for visual image spectrographic detection technology, comprise image spectrum exploring block, illuminace component and the first camera bellows, image spectrum exploring block, illuminace component are arranged in the first camera bellows; Wherein image spectrum exploring block comprises camera lens, light beam-dividing cube, area array CCD camera, DMD digital micromirror elements, convergent lens group, fiber coupler, optical fiber, fiber spectrometer and computing machine, wherein area array CCD camera, DMD digital micromirror elements are connected with computing machine with fiber spectrometer, and fiber spectrometer is connected with fiber coupler by optical fiber; Micro mirror unit in DMD digital micromirror elements has "ON", "Off" two states;
Image spectrum exploring block operationally, the picture signal of plant leaf blade is by forming incident optical signal after camera lens, incident optical signal is divided into two bundles with wide-angle in space after light beam-dividing cube, wherein light beam signal focus carries out image detection to CCD camera, another bundle light signal focuses to DMD digital micromirror elements, light signal is reflexed to convergent lens group by micro mirror unit DMD digital micromirror elements being in "On" state, is coupled into fiber spectrometer carries out spectrographic detection by the light signal of convergent lens group through fiber coupler.
When using detection system provided by the invention, first detection system is moved to the top for the treatment of measuring plants and make again to treat that measuring plants enters the first camera bellows from the bottom opening of the first camera bellows, then use detection system provided by the invention to treat measuring plants and detect.The specific works principle detected is as follows:
The light signal of area array CCD camera herborization blade by the optical signal transmission that gathers to computing machine, computing machine processes rear acquisition image information to light signal and image information is shown, user is according to the image information of display, analyze the type of the whether ill insect pest of plant and disease and pest, if the ill insect pest of plant, after determining the disease and pest that plant suffers from, the pixel region of plant leaf blade disease sites is chosen in image information, and make micro mirror unit corresponding to disease sites pixel region switch to "On" state by computing machine control DMD digital micromirror elements, other irrelevant unit switch to "Off" state simultaneously, namely gather the light signal of disease sites pixel region by fiber coupler and the light signal of collection is carried out spectral measurement through Optical Fiber Transmission to fiber spectrometer, again transfer spectral information to computing machine is carried out showing and analyzing, the spectral information of acquisition and corresponding plant pest spectra database contrast by user, the health status treating measuring plants can be obtained.
In such scheme, detection system is without the need to carrying out spectral measurement to all pixels, which not only improves single speed of detection, under the condition of coupling high-precision optical fiber spectrometer, spectral resolution can be brought up to Δ λ/λ=0.0001 order of magnitude by this system, and this is enough to the accuracy requirement meeting plant early stage disease and pest prevention testing.
Preferably, in order to the dirigibility that detection system can be made to use is stronger, minimizing user moves the workload expended needed for plant, improve detection efficiency, described health detecting system also includes the first camera bellows mobile control unit, and described first camera bellows mobile control unit comprises rotary head, camera bellows sway brace, is connected the automatically controlled transfer table that camera bellows sway brace can be made to do radial motion with camera bellows sway brace; The control end of automatically controlled transfer table, rotary head is connected with computing machine, and one end of camera bellows sway brace is connected with the first camera bellows by rotary head.User is before detecting, first control electric controlled sliding by computing machine to move platform camera bellows sway brace is radially moved until the first camera bellows is positioned at the top of plant along automatically controlled transfer table, then control by computing machine angle of inclination that rotary head adjusts the first camera bellows and enable plant enter the first camera bellows better to detect.Setting up the first camera bellows mobile control unit, can making when plant to be detected is more without the need to moving plant when detecting at every turn, therefore, it is possible to greatly reduce the workload of user, improve the efficiency of systems axiol-ogy.
Preferably, in order to the height that detection system can be enable to adapt to different plant independently adjusts the height of the first camera bellows, described camera bellows sway brace is telescopic arm.
Preferably, in order to enable detection system carry out under the illumination condition of the best image information, spectral information acquisition thus make testing result more accurate, the control end of described illuminace component is connected with computing machine.User is carrying out in the process detected, and computing machine obtains the leaf image of plant by area array CCD camera, and the exposure of computed image, exposure is fed back to Lighting control parts, Lighting control parts regulate luminous intensity automatically according to the exposure of image.
Preferably, described illuminace component comprises one or more white light LEDs and LED control circuit, and white light LEDs is connected with computing machine by LED control circuit, and LED is arranged on the inwall of the first camera bellows.
Preferably, in order to the image enabling camera lens clearly obtain different plant leaf blade, make the image information of acquisition and spectral information more accurate, described camera lens is the tight shot with automatic focusing function, and the control end of tight shot is connected with computing machine.Computing machine obtains the leaf image of plant by area array CCD camera, and calculates depth from defocus according to the fog-level of image and depth information, then automatically adjusts the focal length of tight shot according to the depth from defocus of image.
Preferably, in order to guarantee that the light signal of the pixel region of the disease sites when carrying out spectrographic detection to the pixel region of disease sites is not by the impact of irrelevant area light signal, image spectrum exploring block also includes extinction material, when light signal focuses to DMD digital micromirror elements, light signal is reflexed to extinction material by micro mirror unit DMD digital micromirror elements being in "Off" state.When the pixel region of disease sites carries out spectrographic detection, micro mirror unit corresponding to irrelevant region is made to switch to "Off" state by computing machine control DMD digital micromirror elements, the light signal of light absorbent to extraneous areas absorbs, and can guarantee not produce interference to the light signal of the pixel region of disease sites.
Preferably, described camera lens, light beam-dividing cube, area array CCD camera, DMD digital micromirror elements, convergent lens group, the integrated setting of fiber coupler are encapsulated in the inside of the second camera bellows, and the second camera bellows is arranged on the inwall at the first camera bellows top.
Preferably, in order to make testing result not by extraneous influence of light, improve the accuracy detected, inwall on the downside of described first camera bellows is provided with the horizontally disposed soft board of polylith, described soft board can with the installation site on inwall for initial point vertically moves in a circle, the installation site of each piece of soft board is on same level direction and the installation site of every block soft board is different in radial directions from the installation site of other soft boards, wherein between to the soft board on angular direction, leave spacing, the bottom of the first camera bellows forms an entrance by the spacing left between soft board, the setting height(from bottom) of soft board is lower than illuminace component, the setting height(from bottom) of image spectrum exploring block.User uses before detection system detects plant, first makes plant enter the first camera bellows by soft board, because soft board can completely cut off extraneous light, well so detection system can improve the accuracy of testing result.
Preferably, in order to enable soft board fast return original position after plant is by soft board, the first camera bellows inwall on the downside of described soft board installation site being provided with multiple soft board elasticity and recovering bracing frame, soft board elasticity is recovered bracing frame and is connected with soft board.
Compared with prior art, the invention has the beneficial effects as follows:
Detection system provided by the invention, without the need to carrying out spectral measurement and storage to all pixels of image, also without the need to carrying out the scanning of spectrum dimension, thus effectively can improve detection speed; Simultaneously by being equipped with high-precision fiber spectrometer, can realize spectral resolution can being brought up to Δ λ/λ=0.0001 order of magnitude while wide spectral is measured, compared with existing EO-1 hyperion plant leaf blade pest diagnosis system, improve two orders of magnitude, be conducive to the early detection work of the ill insect pest of plant.
Accompanying drawing explanation
Fig. 1 is the structural representation of image spectrum exploring block.
Fig. 2 is the testing process schematic diagram using detection system.
Fig. 3 is the one-piece construction figure of embodiment 2 detection system.
Embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent;
Below in conjunction with drawings and Examples, the present invention is further elaborated.
Embodiment 1
As shown in Figure 1, in the present embodiment, detection system comprises image spectrum exploring block, illuminace component and the first camera bellows 1, and image spectrum exploring block, illuminace component are arranged in the first camera bellows 1; Wherein image spectrum exploring block comprises camera lens 2, light beam-dividing cube 3, area array CCD camera 4, DMD digital micromirror elements 5, convergent lens group 6, fiber coupler 7, optical fiber 8, fiber spectrometer 9 and computing machine 10, wherein the control end of illuminace component, area array CCD camera 4, DMD digital micromirror elements 5 are connected with computing machine 10 by data bus and wireless transmission interface 11 with fiber spectrometer 9, and fiber spectrometer 9 is connected with fiber coupler 7 by optical fiber 8; Micro mirror unit in DMD digital micromirror elements 5 has "ON", "Off" two states.Image spectrum exploring block also includes extinction material 12 simultaneously.
Image spectrum exploring block operationally, the picture signal of plant leaf blade is by forming incident optical signal after camera lens 2, incident optical signal is divided into two bundles with wide-angle in space after light beam-dividing cube 3, wherein light beam signal focus carries out image detection to area array CCD camera 4, another bundle light signal focuses to DMD digital micromirror elements 5, light signal is reflexed to convergent lens group 6 by micro mirror unit DMD digital micromirror elements 5 being in "On" state, be coupled into fiber spectrometer 9 by the light signal of convergent lens group 6 through fiber coupler 7 and carry out spectrographic detection, light signal is reflexed to extinction material 12 by micro mirror unit DMD digital micromirror elements 5 being in "Off" state.
Wherein camera lens 2, light beam-dividing cube 3, area array CCD camera 4, DMD digital micromirror elements 5, convergent lens group 6, the integrated setting of fiber coupler 7 are encapsulated in the inside of the second camera bellows 13, and the second camera bellows 13 is arranged on the inwall at the first camera bellows 1 top.
In the present embodiment, illuminace component comprises one or more white light LEDs 14 and LED control circuit, and white light LEDs 14 is connected with computing machine 10 by LED control circuit, and white light LEDs 14 is arranged on the inwall of the first camera bellows 1.Camera lens 2 is tight shot, and the control end of tight shot is connected with computing machine 10.Area array CCD camera 4 is of a size of 1/2 inch, and resolution is 1024 × 768, and image frame per second is set to 25 frames/second, i.e. every frame duration T=40ms.The micro mirror array of DMD digital micromirror elements 5 is 1024 × 768, and micro mirror unit is of a size of 10.8um × 10.8um, diagonally can produce ± the deflection angle of 12 °.Be "On" state when going to+12 °; When going to-12 °, be "Off" state.Area array CCD camera 4 sum of all pixels is 1:1 with the ratio of the micro mirror unit sum of DMD digital micromirror elements 5, and the corresponding pixel of each micro mirror unit, can realize carrying out the object of spectral measurement to any one pixel in image.In the present embodiment, the spectral measurement ranges of fiber spectrometer 9 is 200nm-1100nm, and optical resolution is 0.3nm, and integral time, 1ms was to being greater than 60s.
As shown in Figure 2, the course of work of whole system is specific as follows:
First detection system is moved to the top for the treatment of measuring plants to make again to treat that measuring plants enters the first camera bellows 1 from the bottom opening of the first camera bellows 1, then illuminace component and image spectrum exploring block is opened, computing machine 10 obtains the image information of plant leaf blade by the area array CCD camera 4 of image spectrum exploring block, and the exposure of computed image, exposure is fed back to Lighting control parts, Lighting control parts regulate luminous intensity automatically according to the exposure of image.Simultaneous computer 10 calculates according to the fog-level of image and depth information the focal length that depth from defocus adjusts tight shot thus automatically.
Then treat measuring plants to detect, in the process detected, micro mirror unit states all in DMD digital micromirror elements 5 is set to "Off", and keeps the luminous intensity of illuminace component constant.
The light signal of area array CCD camera 4 herborization blade by the optical signal transmission that gathers to computing machine 10, computing machine 10 collocation has image spectrum analysis software, the image function of software is that the image obtained by area array CCD camera 4 shows with two subwindows, A window keeps former figure, for the whether ill insect pest of qualitative observation institute measuring plants or suffer from which kind of disease and pest, the image of B window passes through threshold process, the Digital image technology process such as morphology opening operation, after wiping out background information, blade profile to be measured chosen and give prominence to, convenient one or more characteristic area of selection, and control DMD digital micromirror elements 5 makes micro mirror unit corresponding to selected characteristic area switch to "On" state, micro mirror unit corresponding for pixel region beyond selected areas is kept "Off" state simultaneously, it is t that "on" and "off" state continues duration, the light of selected characteristic area can be reflected into measure spectrum information in fiber spectrometer 9 like this, the light of extraneous areas is then absorbed by extinction material 12, can guarantee like this not produce interference to the optical information of selected areas.
According to actual conditions, when n (n >=2) individual characteristic area chosen in the picture by needs, the micro mirror unit state that single characteristic area is corresponding continues duration t<40ms, can ensure that the spectral information of selected characteristic area can show in image spectrum analysis software simultaneously in real time, the selected characteristic area number n=2 of the present embodiment hypothesis, the micro mirror unit region single state that then each characteristic area is corresponding continues duration t<20ms, these two micro mirror unit zone state switching frequencies are made to be 1:1 by software design patterns DMD digital micromirror elements 5, namely the micro mirror unit region that supposition first selected characteristic area is corresponding keeps "On" state duration to be 2ms (the micro mirror unit regional sustained "Off" state duration that any non-selected characteristic area is corresponding simultaneously is also 2ms), duration is selected can select arbitrarily under the prerequisite meeting the restriction of maximum duration, "Off" is switched to after 2ms, the micro mirror unit region that simultaneously second characteristic area is corresponding switches to "On" state, lasting duration is 2ms ... "ON" "Off" state like this repeats alternately to make two selected characteristic areas can show respective spectral information when spectral measurement simultaneously,
After completing the spectral measurement to selected characteristic area, the data in institute's light-metering modal data and plant pest spectra database are contrasted, the health status treating measuring plants can be obtained, and then do specific aim process.
Embodiment 2
The present embodiment is on the basis of embodiment 1, set up the first camera bellows mobile control unit, as shown in Figure 3, the first camera bellows mobile control unit comprises rotary head 15, camera bellows sway brace 16, is connected the automatically controlled transfer table 17 that camera bellows sway brace 16 can be made to do radial motion with camera bellows sway brace 16; The control end of automatically controlled transfer table 17, rotary head 15 is connected with computing machine 10, and one end of camera bellows sway brace 16 is connected with the first camera bellows 1 by rotary head 15.
User is before detecting, first controlling automatically controlled transfer table 17 by computing machine 10 makes camera bellows sway brace 16 radially move until the first camera bellows 1 is positioned at the top of plant along automatically controlled transfer table 17, then controls by computing machine 10 angle of inclination that rotary head 15 adjusts the first camera bellows 1 and enable plant enter the first camera bellows 1 better to detect.Setting up the first camera bellows mobile control unit, can making when plant to be detected is more without the need to moving plant when detecting at every turn, therefore, it is possible to greatly reduce the workload of user, improve the efficiency of systems axiol-ogy.
Meanwhile, in order to the height that detection system can be enable to adapt to different plant independently adjusts the height of the first camera bellows 1, described camera bellows sway brace 16 is telescopic arm.
In the present embodiment, in order to make testing result not by extraneous influence of light, improve the accuracy detected, inwall on the downside of described first camera bellows 1 is provided with the horizontally disposed soft board 18 of polylith, described soft board 18 can with the installation site on inwall for initial point vertically moves in a circle, the installation site of each piece of soft board 18 is on same level direction and the installation site of every block soft board 18 is different in radial directions from the installation site of other soft boards 18, wherein between to the soft board 18 on angular direction, leave spacing, the bottom of the first camera bellows 1 forms an entrance by the spacing left between soft board 18, the setting height(from bottom) of soft board 18 is lower than illuminace component, the setting height(from bottom) of image spectrum exploring block.User uses before detection system detects plant, first makes plant enter the first camera bellows 1 by soft board 18, because soft board 18 can completely cut off extraneous light, well so detection system can improve the accuracy of testing result.
The first camera bellows 1 inwall wherein on the downside of soft board 18 installation site is provided with multiple soft board elasticity and recovers bracing frame 19, soft board elasticity is recovered bracing frame 19 and is connected with soft board 18.Set up soft board elasticity to recover bracing frame 19 and can make plant can fast return original position by soft board 18 after soft board 18.
Detection system provided by the invention, without the need to carrying out spectral measurement and storage to all pixels of image, also without the need to carrying out the scanning of spectrum dimension, thus effectively can improve detection speed; Simultaneously by being equipped with high-precision fiber spectrometer, can realize spectral resolution can being brought up to Δ λ/λ=0.0001 order of magnitude while wide spectral is measured, compared with existing EO-1 hyperion plant leaf blade pest diagnosis system, improve two orders of magnitude, be conducive to the early detection work of the ill insect pest of plant.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (10)
1. based on a plant leaf blade health detecting system for visual image spectrographic detection technology, it is characterized in that: comprise image spectrum exploring block, illuminace component and the first camera bellows, image spectrum exploring block, illuminace component are arranged in the first camera bellows; Wherein image spectrum exploring block comprises camera lens, light beam-dividing cube, area array CCD camera, DMD digital micromirror elements, convergent lens group, fiber coupler, optical fiber, fiber spectrometer and computing machine, wherein area array CCD camera, DMD digital micromirror elements are connected with computing machine with fiber spectrometer, and fiber spectrometer is connected with fiber coupler by optical fiber; Micro mirror unit in DMD digital micromirror elements has "ON", "Off" two states;
Image spectrum exploring block operationally, the picture signal of plant leaf blade is by forming incident optical signal after camera lens, incident optical signal is divided into two bundles with wide-angle in space after light beam-dividing cube, wherein light beam signal focus carries out image detection to CCD camera, another bundle light signal focuses to DMD digital micromirror elements, light signal is reflexed to convergent lens group by micro mirror unit DMD digital micromirror elements being in "On" state, is coupled into fiber spectrometer carries out spectrographic detection by the light signal of convergent lens group through fiber coupler.
2. the plant leaf blade health detecting system based on visual image spectrographic detection technology according to claim 1, it is characterized in that: described health detecting system also includes the first camera bellows mobile control unit, described first camera bellows mobile control unit comprises rotary head, camera bellows sway brace, is connected the automatically controlled transfer table that camera bellows sway brace can be made to do radial motion with camera bellows sway brace; The control end of automatically controlled transfer table, rotary head is connected with computing machine, and one end of camera bellows sway brace is connected with the first camera bellows by rotary head.
3. the plant leaf blade health detecting system based on visual image spectrographic detection technology according to claim 2, is characterized in that: described camera bellows sway brace is telescopic arm.
4. the plant leaf blade health detecting system based on visual image spectrographic detection technology according to claim 2, is characterized in that: the control end of described illuminace component is connected with computing machine.
5. the plant leaf blade health detecting system based on visual image spectrographic detection technology according to claim 4, it is characterized in that: described illuminace component comprises one or more white light LEDs and LED control circuit, white light LEDs is connected with computing machine by LED control circuit, and white light LEDs is arranged on the inwall of the first camera bellows.
6. the plant leaf blade health detecting system based on visual image spectrographic detection technology according to claim 2, it is characterized in that: described camera lens is the tight shot with automatic focusing function, the control end of tight shot is connected with computing machine, controls camera lens auto-focusing by computing machine.
7. the plant leaf blade health detecting system based on visual image spectrographic detection technology according to claim 2, it is characterized in that: image spectrum exploring block also includes extinction material, when light signal focuses to DMD digital micromirror elements, light signal is reflexed to extinction material by micro mirror unit DMD digital micromirror elements being in "Off" state.
8. the plant leaf blade health detecting system based on visual image spectrographic detection technology according to claim 7, it is characterized in that: described camera lens, light beam-dividing cube, area array CCD camera, DMD digital micromirror elements, convergent lens group, the integrated setting of fiber coupler are encapsulated in the inside of the second camera bellows, and the second camera bellows is arranged on the inwall at the first camera bellows top.
9. the plant leaf blade health detecting system based on visual image spectrographic detection technology according to claim 7, it is characterized in that: the inwall on the downside of described first camera bellows is provided with the horizontally disposed soft board of polylith, described soft board can with the installation site on inwall for initial point vertically moves in a circle, the installation site of each piece of soft board is on same level direction and the installation site of every block soft board is different in radial directions from the installation site of other soft boards, wherein between to the soft board on angular direction, leave spacing, the bottom of the first camera bellows forms an entrance by the spacing left between soft board, the setting height(from bottom) of soft board is lower than illuminace component, the setting height(from bottom) of image spectrum exploring block.
10. the plant leaf blade health detecting system based on visual image spectrographic detection technology according to claim 9, it is characterized in that: the first camera bellows inwall on the downside of described soft board installation site is provided with multiple soft board elasticity and recovers bracing frame, soft board elasticity is recovered bracing frame and is connected with soft board.
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| CN105956591A (en) * | 2016-04-28 | 2016-09-21 | 中山大学 | On-line high-temperature part infrared image spectrum sampling detection method |
| CN107064159A (en) * | 2017-05-08 | 2017-08-18 | 重庆光电信息研究院有限公司 | A kind of apparatus and system that growth tendency is judged according to the detection of plant yellow leaf |
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| CN107064159B (en) * | 2017-05-08 | 2021-01-05 | 重庆光电信息研究院有限公司 | Device and system for detecting and judging growth trend according to yellow leaves of plants |
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