WO2012053877A1 - Procédé et dispositif permettant de diagnostiquer les conditions de croissance d'une plante - Google Patents

Procédé et dispositif permettant de diagnostiquer les conditions de croissance d'une plante Download PDF

Info

Publication number
WO2012053877A1
WO2012053877A1 PCT/LT2011/000012 LT2011000012W WO2012053877A1 WO 2012053877 A1 WO2012053877 A1 WO 2012053877A1 LT 2011000012 W LT2011000012 W LT 2011000012W WO 2012053877 A1 WO2012053877 A1 WO 2012053877A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
leaves
plant
spectra
leaf
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/LT2011/000012
Other languages
English (en)
Other versions
WO2012053877A4 (fr
Inventor
Vytautas Petkus
Ernestas Petrauskas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Uab "zemdirbiu Konsultacijos"
Original Assignee
Uab "zemdirbiu Konsultacijos"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Uab "zemdirbiu Konsultacijos" filed Critical Uab "zemdirbiu Konsultacijos"
Priority to DE112011103545.4T priority Critical patent/DE112011103545B4/de
Publication of WO2012053877A1 publication Critical patent/WO2012053877A1/fr
Publication of WO2012053877A4 publication Critical patent/WO2012053877A4/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • 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
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N2021/8466—Investigation of vegetal material, e.g. leaves, plants, fruits

Definitions

  • the invention relates to the methods and the devices for diagnostics of the growth conditions of a plant.
  • the light in the plants is absorbed by pigments.
  • the ability of the pigments' molecules to transfer the energy, when exited by light, to other molecules has significant importance, because the energy, which is absorbed from the waves of a light is transformed into chemical energy and is used for the assimilation of carbon dioxide.
  • the energy of the light quant is transformed into chemical energy and is used for the assimilation of carbon dioxide.
  • pigments There are a few hundreds of pigments of different colours in the plants. According to the chemical content and structure, pigments are divided into four groups: chlorophylls, carotenoids, phycobilins and flavonoids. The chlorophylls, carotenoids, and phycobilins are used for photosynthesis.
  • the fluorescent emission occurs after the irradiation of a plant with visible white light of the wavelength ranging from 400 to 650 nm. During the fluorescent emission in the dark the plant emits infrared light with the wavelength components of 690 nm and 740 nm. The emission of components of said wavelength of light shows the ability of a plant to synthesise chlorophyll as well as reflects the amount of water (biomass index) and nitrogen in it. Moreover, mainly nitrogen is needed for the synthesis of chlorophyll in the plants.
  • DEI 0148737 relates to the method of estimation of biophysical parameters in the leaves of a plant.
  • the method is based on the irradiation of leaves by using a xenon flash lamp and subsequent spectral analysis of the reflected visible and infrared light.
  • the reflected light is transmitted through the optic filters which are adjusted for different wavelengths of the light. Different wavelengths of the split light are detected with separate light detectors.
  • US2005072935 relates to the portative device for diagnostics of plants' growth.
  • the device is based on the irradiation of a plant with light having the wavelength spectrum from 400 nm to 650 nm by using an array of the light emitting diodes (LED) and the spectral analysis of fluorescent emission of the plant.
  • the efficiency of the photosynthesis is determined according to the levels of the received light components of wavelength of 690 nm and 740 nm.
  • WO 99/35485 describes that the dominant wavelength of components of light of fluorescent emission are of 700 nm and 840 nm. WO 99/35485 also describes the system of optic lenses with optic filters used for filtering of components of the emitted light and an electronic device used for the detection and evaluation of the intensity of these components of light. The device estimates the amount of the chlorophyll in the plant according to the measured levels of components of light.
  • the amount of chlorophyll in the plant can be also estimated by analysing the spectrum of the light that is reflected from or has passed through the leaves.
  • the patent DEI 0002880 relates to the system for diagnostics of the growth parameters of plants based on the irradiation of their leaves with the passive (daylight) or active (LED or laser light of different wavelengths) light, the analysis of the spectrum of the reflected light and emitted fluorescent light and subsequent data transmission (by internet).
  • the diagnostics and data transmission is performed in a GPS equipped vehicle which is passing through the fields and performs the diagnoses of growth of the plants growing in different places on the fields.
  • the leaf surface index, the amount of chlorophyll and water in the plants are determined by analysing the spectrum of the reflected light and emitted fluorescent light.
  • JP2006250827 relates to a device for determining the growth conditions of rice crops.
  • the operation of the device is based on the spectral analysis of the digital images of the plants in the fields, taken from an airplane or a satellite. By analysing the components B16 and B17 of the spectra of the said images it is possible to evaluate the amount of proteins in the plants (rise).
  • the methods of multi-regression are applied for the analysis of the photo images.
  • US6567537 relates to the plants' diagnostics system based on the analysis of the images of the plants taken with digital cameras.
  • the analysis of the digital images at the wavelength of 550 nm represents the amount of light reflected by chlorophyll, at the wavelength of 680 nm - the amount of light absorbed by chlorophyll and the analysis at the wavelength of 770 nm represents the index of biomass of a plant (biomass index represents amount of water contained in a plant).
  • WO2009007269 relates to the portable device designed for the evaluation of water amount in the plants.
  • the operation of the device is based on irradiation of plants by light from two LEDs.
  • One LED has the wavelength of the light which is attenuated by the amount of water in the plant.
  • the second LED has the wavelength of the light which is not attenuated by the amount of water in the plant.
  • the amount of water in the plants is determined according to the levels of the detected components of spectrum of light after the light passes through the leaves. Only two LEDs with the fixed wavelengths are used.
  • the invention described in the patent US6683970 is the nearest prototype to our invention.
  • the patent US6683970 relates to the method and the device for diagnostics of the crops.
  • the device is based on the spectrum analysis of the digital images of daylight reflected from the crops.
  • the spectrum of the reflected light is analysed from the images of the whole field of plants taken at various angles.
  • the optical filters for filtering the light of the fixed wavelengths 450, 550, 625, 650, 675, 700 nm for visible light and 750, 850, 950-1300 nm for infrared light
  • the amount of nitrogen in crops is determined according to the spectra of the reflected light at different places of the fields.
  • the patent US6683970 also relates to the portable device for determining the quantity of nitrogen in the leaves of plants according to the spectral analysis of the light reflected from the leaves.
  • the LEDs are used as the light sources of different wavelengths. Used together with the optical filters for visible and infrared light they form light spectrum of the wavelenghts from 550 nm to 1 100 nm.
  • the patent US6683970 relates to the method which allows us to determine only one chemical element (nitrogen) needed for the plant.
  • the aim of the invention is related to the estimation of the deficiency of main chemical elements (Fe, B, Mn, Zn, Cu, Mo) in the plant during the period of vegetation.
  • Each of said chemical elements is associated with different mobility.
  • the plant compensates the deficiency of each chemical component in different manner. Some elements are transferred from older leaves to younger ones according to the plant's needs; other elements are transferred partially or they are left in the old leaves. Young leaves grow and develops during the process of vegetation. Such young leafs are characterized by lighter colour.
  • the processes of photosynthesis have higher intensity in older and already developed leaves than in youngest leaf. During the photosynthesis energy produced in the leaves is transferred to a plant. Such leaves are of a darker colour.
  • the difference between younger and older leaves is associated with different processes occurring in these leaves, therefore the amount of micro- and macro- elements are assimilated differently. Also, the processes of photosynthesis are of different intensity. The spectrum of light from young and old leaves will also be different.
  • the growing conditions of the plant can be evaluated according to the colours of their leaves. After irradiating leaves with visible or infrared light the light will be reflected and the spectrum of the reflected light can be used to characterise the colour of the leaves and to evaluate the growth conditions of a plant.
  • a different spectrum will be obtained for the light reflected by different leaves of the same plant (for example, the plant of wheat has 6 leaves).
  • the youngest leaf of healthy summer wheat is of light green colour, because the intensity of photosynthesis in this leaf is low.
  • An older leaf, where the intensity of photosynthesis is higher, is of a darker green colour.
  • the spectrum of the reflected light from these leaves will be different.
  • the activity and density of the pigments in the leaves will be different with each leave, if they were provided with different amount of micro- and macro- elements during their development.
  • the differences in the spectra of the reflected light of the leaves that grew with the deficiency of any mentioned elements will be smaller than the differences in the spectra of the reflected light of a healthy plant.
  • This invention relates to the method of diagnostics of the growth conditions of a plant, comprising means of irradiation of the leaves of a plant with visible or infrared light and the analysis of the light reflected from different leaves.
  • the new features in the invention are as follows:
  • the differences between the two leaves of different age are compared between a healthy plant (a reference plant which grew in optimal conditions) and the tested plant;
  • the diagnosis of the deficiency of chemical elements is performed according to the differences of the measured spectra.
  • the leaf is placed in a dark chamber and is irradiated with an LED light sources.
  • the light from an LED is guided to a leaf by using optical fibers.
  • the reference plant and the plant under the testing can be wheat, rye, barley, rape and other agricultural plants.
  • the device intended for use in method of diagnostics of the growth conditions of a plant contains a chamber for placement of a leaf, LED for irradiation of a leaf, photodetectors for the detection of light, an amplifier, an analog-to-digital converter and a microcontroller for data processing and storage.
  • the proposed device is characterized by having at least two dark chambers for placement of leaves; at least two LEDs with an electronic control circuits for each chamber; at least two photodetectors for the detection of the light reflected from the leaves, and one microcontroller which is capable of performing the measurements of the spectra differences of the reflected light from the leaves placed in at least two different chambers.
  • the light guide is used for guiding the LED light to the leaves.
  • light from an additional infrared LED and an RGBA (red-green-blue- amber) LED are mixed using an additional lens.
  • the most desirable configuration of said device contains four dark chambers for placement of leaves, four LEDs with the electronic control circuits, four photodetectors for detection of the light reflected from the leaves.
  • the device according to this invention is calibrated by using reference sheets of paper of black and white colour.
  • Fig. 1 is a numbering of leaves of summer wheat
  • Fig. 2 is a block diagram of the diagnostic device in accordance with the invention (first embodiment);
  • Fig. 3 is block diagram of the diagnostic device in accordance with the invention (second embodiment);
  • Fig. 4 is a block diagram of the diagnostic device in accordance with the invention (third embodiment);
  • Fig. 5 is a plot of the differences between the spectra of the light reflected from the youngest 1A and older IB leaves of summer wheat which grew under optimal conditions;
  • Fig. 6A is a plot of the differences between the spectra of the light reflected from the leaves of summer wheat which grew under optimal conditions and with the deficiency of iron (Fe).
  • the dotted line is a spectrum difference of youngest leaves 1A.
  • the solid line is the spectrum difference of older leaves IB;
  • Fig. 6B is a plot of the differences between the spectra of the light reflected from the youngest 1A and older IB leaves of summer wheat which grew with the deficiency of iron (Fe) (dotted line) and under optimal conditions (solid line) ;
  • Fig. 7A is a plot of the differences between the spectra of the light reflected from the leaves of summer wheat which grew under optimal conditions and with the deficiency of boron (B).
  • the dotted line is a spectrum difference of youngest leaves 1A.
  • the solid line is the spectrum difference of older leaves IB;
  • Fig. 7B is a plot of the differences between the spectra of the light reflected from the youngest 1A and older IB leaves of summer wheat which grew with the deficiency of boron (B) (dotted line) and under optimal conditions (solid line) ;
  • Fig. 8A is a plot of the differences between the spectra of the light reflected from the leaves of summer wheat which grew under optimal conditions and with the deficiency of manganese (Mn).
  • the dotted line is a spectrum difference of youngest leaves 1A.
  • the solid line is the spectrum difference of older leaves IB;
  • Fig. 8B is a plot of the differences between the spectra of the light reflected from the youngest 1A and older IB leaves of summer wheat which grew with the deficiency of manganese (Mn) (dotted line) and under optimal conditions (solid line) ;
  • Fig. 9A is a plot of the differences between the spectra of the light reflected from the leaves of summer wheat which grew under optimal conditions and with the deficiency of zinc (Zn).
  • the dotted line is a spectrum difference of youngest leaves 1A.
  • the solid line is the spectrum difference of older leaves IB;
  • Fig. 9B is a plot of the differences between the spectra of the light reflected from the youngest 1A and older IB leaves of summer wheat which grew with the deficiency of zinc (Zn) (dotted line) and under optimal conditions (solid line) ;
  • Fig. 1 OA is a plot of the differences between the spectra of the light reflected from the leaves of summer wheat which grew under optimal conditions and with the deficiency copper (Cu).
  • the dotted line is a spectrum difference of youngest leaves 1A.
  • the solid line is the spectrum difference of older leaves IB;
  • Fig. 1 OB is a plot of the differences between the spectra of the light reflected from the youngest 1A and older IB leaves of summer wheat which grew with the deficiency of copper (Cu) (dotted line) and under optimal conditions (solid line) ;
  • Fig. 1 1A is a plot of the differences between the spectra of the light reflected from the leaves of summer wheat which grew under optimal conditions and with the deficiency molybdenum (Mo).
  • the dotted line is a spectrum difference of youngest leaves 1A.
  • the solid line is the spectrum difference of older leaves IB;
  • Fig. 1 IB is a plot of the differences between the spectra of the light reflected from the youngest 1A and older IB leaves of summer wheat which grew with the deficiency of molybdenum (Mo) (dotted line) and under optimal conditions (solid line) ; Summary of the invention
  • FIG. 1 The block diagram of the diagnostic device in accordance with the invention is presented in Fig 2.
  • the operation of the device is based on the following procedures:
  • the youngest and older leaves 1A and IB are irradiated by light from an RGB or RGBA LED diodes 4 (composed of three (Red-green-blue) or four (Red-green-blue-amber) colours of an LED sources).
  • the wavelength of the irradiated light is changed from 400 nm to 1 100 nm by driving the LEDs via electronic circuit 6 (current amplifiers).
  • the range of RGBA LED wavelength can be 460 - 700 nm. Additional LEDs of fixed infrared and ultraviolet wavelength are used for light spectrum expansion from nm up to 1 100 nm.
  • the lights from RGBA and infrared LEDs are guided through the flexible light guides 3 (for example - fiber optics) to the dark chambers 2 where the leaves 1A and IB are positioned (two separate chambers for each leaf).
  • the diameter of light guide 3 is from 1 mm to 5 mm.
  • the outer surface of the light guide is covered with a dark light absorbing material (or light reflecting material from inside) for better light propagation within the light guide.
  • the light reflected from each leaf goes through the receiving light guide 3 and is received by photodetectors 7.
  • the light signal is converted into an electrical signal by photodetectors 7 and then sent to the differential amplifier 8.
  • the output signal from the differential amplifier 8 is converted into a digital signal in an analog-to-digital converter 9 for further processing in the microcontroller 10.
  • the microcontroller 10 controls the process of measurement and performs the measurements of the differential spectrum.
  • ⁇ and I 2 are intensities of the reflected light
  • k is the transfer coefficient (gain) of the amplifier, the light guide and the LED sources (dependant on the wavelength)
  • ⁇ is the wavelength of the light
  • ⁇ ( ⁇ ) is an additive error of measurements caused by zero drift of the amplifier and by differences between the measurement channels of first and second leaves.
  • the difference Ii ( ⁇ ;) - 1 2 ( ⁇ ;) is measured at each fixed value of the wavelength of the light.
  • k is the transfer coefficient (gain) of the amplifier, the light guide and LED sources (depends on the wavelength).
  • the function k ( ⁇ ,) is obtained by calibrating the measurement system with a white sheet of paper.
  • the additive error A ⁇ J ( ⁇ ;) due to zero drift of the amplifier and differences between the measurement channels is obtained by calibrating the system with a black sheet of paper.
  • the simplified embodiment of the device for plants' diagnosis is presented in Fig 3.
  • the RGBA and an infrared LED source 4 with a lens 5 for mixing the light are used in the device.
  • Light from the light source is guided to both dark chambers 2 in the flexible light guides 3.
  • the advantage of such an embodiment of the device is less components (light sources).
  • Fig. 2 and Fig. 3 allow us to perform simultaneous measurements of the spectra difference of the light reflected from youngest and older leaves.
  • the device can be equipped with up to 4 measuring channels. It would expand the capability of the device to perform measurements of spectra differences of various leaves:
  • 1A is a youngest leaf
  • IB is an older leaf, emerged 7 days earlier than 1 A
  • 1C is an older leaf, emerged 14 days earlier than 1A
  • ID is the oldest leaf, emerged 21 days earlier than 1A (in the case of summer wheat, a new leaf emerges every 7 days).
  • the embodiment of the plant diagnostic device which is capable of performing the measurements of spectra differences between different leaves is presented in Fig. 4.
  • the light from an RGB A and an infrared LED source 4 is mixed in the device by using the lens 5.
  • the light from the source is guided to four dark chambers 2 in the flexible light guides 3.
  • the four leaves (a leaf per chamber) 1A, IB, 1C and ID of the same plant are irradiated.
  • the signals of reflected light from different leaves are fed to differential amplifiers 8 and subsequently to analog-to-digital converters 9.
  • the microcontroller 10 performs the measurement of spectra difference and outputs the results of the plant diagnosis to the display 12 or the computer 1 1.
  • the advantage of such embodiment of the device is the capability to get full information about the efficiency of the processes of photosynthesis and vegetation for each leaf.
  • the experimental studies showed that the intensities of the reflected light spectra ⁇ ( ⁇ ), 1 2 ( ⁇ ) and the difference 1 ⁇ ( ⁇ ) - ⁇ 2 ( ⁇ ) of a healthy plant, as a function of wavelength of reflected light, are typical for one type of the plant (for summer wheat).
  • the spectra ⁇ ), ⁇ 2 ( ⁇ ) of the light reflected from a healthy plant (which grew with the provision of all needed micro- and macro- elements) and the plant with the deficiency of micro- and macro- elements (Mn, Fe, Cu, Zn, Mo, B) were different.
  • the difference of the spectra of the light reflected from the youngest 1A leaf and the older IB leaf were different for the healthy plant and for the plant which grew with the deficiency of micro- and macro- elements.
  • Figs. 5 A, 6A, 7 A, 8 A, 9A, 10A and 11A show the spectra differences of the light reflected from the 1A and IB leaves of summer wheat which grew with the deficiency of particular micro- and macro- elements and the summer wheat which grew in optimal conditions. These plots illustrate that differential spectra provide diagnostic information and are characterized by futures of individual functions for each case of the deficiency of micro- and macro- elements. These measurements can be done by means of the device presented in Fig. 4.
  • the new method and the device for diagnostics of plants according to the invention is based on the measuring the differences between the spectra of the light reflected from the leaves of a plant. Such a method was not mentioned in other patents.
  • the spectra of the light reflected from leaves depend on the pigments which are influenced by the chemical elements accumulated in a plant during the period of its growth.
  • the amount of that element will be different in an earlier developed and just developing leaves.
  • the plant compensates the deficiency of each chemical component in a different manner: by transferring some missing elements from older leaves to younger ones. However, some elements are transferred partially or they are left in the old leaves. Therefore, the chemical contents in younger and older leaves, as well as the spectra of the reflected light from these leaves are different.
  • the method and the device according to the invention is capable of performing the measurements of the spectra differences of the light reflected from different leaves:
  • the results of the measurement of the spectrum of the light of a healthy plant can be recorded into the memory of the device (or transferred to a computer) and used as a reference spectrum data for further measurements.
  • the technical advantage of the new method is the possibility to minimize the instrumental errors (due to the differences of some futures of the measurement channels and their drift, and the non-uniformity of the amplitudes of the spectra of the light of the light guides) by implementing the measurement of the spectrum difference.
  • the calibration of the zero drift and difference of some futures of the measurement channels is performed by using black and white sheets of paper.
  • One RGBA LED together with an additional infrared LED and ultraviolet LED are used for expanding the range of measurement of the light spectrum up to 1 100 nm.
  • the lens 5 is used for additional mixing of light from RGBA, infrared and ultraviolet LEDs.
  • the light, emitted from the light sources (to the leaves) and the light reflected from the leaves (to the photodetectors) are guided by means of the flexible optical guides (for example - fiber optics).
  • Such implementation minimises direct (parasitic) light propagation from the light sources to the photodetectors.
  • the light guide receiving the light reflected from the leaf is positioned to avoid the incident light emitted from the irradiating light guide.
  • the chamber for a leaf placement has the inner black walls which absorb the irradiated light.
  • the chamber is optically isolated from any external light source.
  • the application of the flexible light tubes allows guiding of the light from one light source to a few measurement chambers. It allows us to implement simultaneous measurement of the light reflected from at least two leaves and to calculate the spectra difference of the light.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

Cette invention concerne un procédé et un dispositif permettant de diagnostiquer les conditions de croissance d'une plante. L'invention vise à détecter la carence en éléments chimiques principaux (Fe, B, Mn, Zn, Cu, Mo) pendant la période de végétation de la plante. Le procédé et le dispositif permettant de diagnostiquer les conditions de croissance d'une plante selon l'invention se basent sur l'exposition des feuilles à des âges différents (1A, 1B, 1C, 1D,...)à la lumière visible et infrarouge, lesdites feuilles étant placées dans des chambres séparées, et sur l'analyse du spectre de la lumière réfléchie par les feuilles. L'estimation de la carence en oligo-éléments et le diagnostic de la plante s'effectuent en fonction des différences mesurées entre les spectres d'une lumière réfléchie par toutes les feuilles de la plante.
PCT/LT2011/000012 2010-10-20 2011-10-03 Procédé et dispositif permettant de diagnostiquer les conditions de croissance d'une plante Ceased WO2012053877A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112011103545.4T DE112011103545B4 (de) 2010-10-20 2011-10-03 Verfahren und Vorrichtung zur Diagnose von Pflanzenwachstumsbedingungen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LT2010091 2010-10-20
LT2010091A LT5858B (lt) 2010-10-20 2010-10-20 Augalo augimo sąlygų diagnostikos būdas ir įrenginys

Publications (2)

Publication Number Publication Date
WO2012053877A1 true WO2012053877A1 (fr) 2012-04-26
WO2012053877A4 WO2012053877A4 (fr) 2012-08-02

Family

ID=45048168

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/LT2011/000012 Ceased WO2012053877A1 (fr) 2010-10-20 2011-10-03 Procédé et dispositif permettant de diagnostiquer les conditions de croissance d'une plante

Country Status (3)

Country Link
DE (1) DE112011103545B4 (fr)
LT (1) LT5858B (fr)
WO (1) WO2012053877A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016065777A (ja) * 2014-09-24 2016-04-28 浜松ホトニクス株式会社 植物における窒素欠乏症を診断する方法
JP2016065778A (ja) * 2014-09-24 2016-04-28 浜松ホトニクス株式会社 植物におけるマグネシウム欠乏症を診断する方法
JP2016065776A (ja) * 2014-09-24 2016-04-28 浜松ホトニクス株式会社 植物におけるカリウム欠乏症を診断する方法
JP2016223971A (ja) * 2015-06-02 2016-12-28 株式会社トプコン 植物用波長センサ装置
CN108982386A (zh) * 2018-07-31 2018-12-11 中国林业科学研究院资源信息研究所 一种檀香叶片全铁含量的多光谱图像确定方法及系统
EP3287003A4 (fr) * 2015-04-24 2019-01-16 Sony Corporation Dispositif d'inspection, procédé d'inspection, et programme

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4074164B1 (fr) * 2021-04-12 2024-01-03 Heliospectra AB (publ) Contrôle de l'intensité lumineuse dans un espace de culture fermé

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999035485A1 (fr) 1998-01-06 1999-07-15 The United States Of America, Represented By The Administrator Of The National Aeronautics And Space Administration Dispositif de mesure de la teneur en chlorophylle des plantes
DE10002880C1 (de) 2000-01-10 2001-06-13 Norsk Hydro As Verfahren und Vorrichtung zum Kontrollieren und Beeinflussen des Pflanzenzustandes durch Pflanzenzustandsinformationen
DE10148737A1 (de) 2001-09-26 2003-04-17 Norsk Hydro As Verfahren und Vorrichtung zum berührungslosen Bestimmen biophysikalischer Parameter von Pflanzenbeständen
US6567537B1 (en) 2000-01-13 2003-05-20 Virginia Commonwealth University Method to assess plant stress using two narrow red spectral bands
US6683970B1 (en) 1999-08-10 2004-01-27 Satake Corporation Method of diagnosing nutritious condition of crop in plant field
US20050072935A1 (en) 2001-09-27 2005-04-07 Robert Lussier Bio-imaging and information system for scanning, detecting, diagnosing and optimizing plant health
US20050098713A1 (en) * 2003-09-23 2005-05-12 Kyle Holland Light sensor with modulated radiant polychromatic source
JP2005308733A (ja) * 2004-03-25 2005-11-04 Nagasaki Prefecture 植物の受けるストレスの測定方法及び装置
JP2006250827A (ja) 2005-03-11 2006-09-21 Pasuko:Kk 作物の生育状況分析方法
WO2009007269A1 (fr) 2007-07-06 2009-01-15 Universite De Toulouse Ii Le Mirail Dispositif de mesure optoelectronique de l'hydratation d'un vegetal dans son environnement naturel

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999035485A1 (fr) 1998-01-06 1999-07-15 The United States Of America, Represented By The Administrator Of The National Aeronautics And Space Administration Dispositif de mesure de la teneur en chlorophylle des plantes
US6683970B1 (en) 1999-08-10 2004-01-27 Satake Corporation Method of diagnosing nutritious condition of crop in plant field
DE10002880C1 (de) 2000-01-10 2001-06-13 Norsk Hydro As Verfahren und Vorrichtung zum Kontrollieren und Beeinflussen des Pflanzenzustandes durch Pflanzenzustandsinformationen
US6567537B1 (en) 2000-01-13 2003-05-20 Virginia Commonwealth University Method to assess plant stress using two narrow red spectral bands
DE10148737A1 (de) 2001-09-26 2003-04-17 Norsk Hydro As Verfahren und Vorrichtung zum berührungslosen Bestimmen biophysikalischer Parameter von Pflanzenbeständen
US20050072935A1 (en) 2001-09-27 2005-04-07 Robert Lussier Bio-imaging and information system for scanning, detecting, diagnosing and optimizing plant health
US20050098713A1 (en) * 2003-09-23 2005-05-12 Kyle Holland Light sensor with modulated radiant polychromatic source
JP2005308733A (ja) * 2004-03-25 2005-11-04 Nagasaki Prefecture 植物の受けるストレスの測定方法及び装置
JP2006250827A (ja) 2005-03-11 2006-09-21 Pasuko:Kk 作物の生育状況分析方法
WO2009007269A1 (fr) 2007-07-06 2009-01-15 Universite De Toulouse Ii Le Mirail Dispositif de mesure optoelectronique de l'hydratation d'un vegetal dans son environnement naturel

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BINGQING LI: "Use of reflectance spectroscopy for early detection of calcium deficiency in plants", PROCEEDINGS OF SPIE, vol. 5852, 1 January 2005 (2005-01-01), pages 693 - 697, XP055022697, ISSN: 0277-786X, DOI: 10.1117/12.621886 *
OI WAH LIEW ET AL: "Signature Optical Cues: Emerging Technologies for Monitoring Plant Health", SENSORS, vol. 8, no. 5, 1 January 2008 (2008-01-01), pages 3205 - 3239, XP055022698, ISSN: 1424-8220, DOI: 10.3390/s8053205 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016065777A (ja) * 2014-09-24 2016-04-28 浜松ホトニクス株式会社 植物における窒素欠乏症を診断する方法
JP2016065778A (ja) * 2014-09-24 2016-04-28 浜松ホトニクス株式会社 植物におけるマグネシウム欠乏症を診断する方法
JP2016065776A (ja) * 2014-09-24 2016-04-28 浜松ホトニクス株式会社 植物におけるカリウム欠乏症を診断する方法
EP3287003A4 (fr) * 2015-04-24 2019-01-16 Sony Corporation Dispositif d'inspection, procédé d'inspection, et programme
JP2016223971A (ja) * 2015-06-02 2016-12-28 株式会社トプコン 植物用波長センサ装置
CN108982386A (zh) * 2018-07-31 2018-12-11 中国林业科学研究院资源信息研究所 一种檀香叶片全铁含量的多光谱图像确定方法及系统

Also Published As

Publication number Publication date
WO2012053877A4 (fr) 2012-08-02
LT2010091A (en) 2012-04-25
DE112011103545T5 (de) 2013-08-01
DE112011103545B4 (de) 2022-06-09
LT5858B (lt) 2012-08-27

Similar Documents

Publication Publication Date Title
WO2012053877A1 (fr) Procédé et dispositif permettant de diagnostiquer les conditions de croissance d'une plante
Biswas et al. Recent developments in smartphone spectrometer sample analysis
JP6075788B2 (ja) 蛍光および吸収分析のシステムおよび方法
AU752897B2 (en) Fluorescence detection assembly for determination of significant vegetation parameters
CN101852725B (zh) 一种全谱段透射式植物生化参数无损检测装置和方法
US10338058B2 (en) Analyte system and method for determining hemoglobin parameters in whole blood
US20130003064A1 (en) Dynamic Spectral Radiance Calibration Source
CN101517384A (zh) 紫外线检测装置和紫外线防护效果评价装置
CN101784881B (zh) 表征生物组织的方法和装置
CN105928688B (zh) 基于单次曝光模式的光栅衍射效率光谱的测量装置和方法
Botero-Valencia et al. Multi-channel low-cost light spectrum measurement using a multilayer perceptron
EP3411689A1 (fr) Système d'analyte et procédé de détermination de paramètres de l'hémoglobine dans le sang total
CN102628800B (zh) 植物叶片叶绿素含量测量方法及系统
US20040233448A1 (en) Device for measuring light absorption characteristics of a biological tissue sample
CN103293113B (zh) 一种主动光源式作物冠层反射光谱测量装置及其方法
Silva et al. Comparison of UV, visible and near-infrared, and mid-infrared spectrometers to estimate maize and sorghum leaf nutrients using dry-intact and ground leaves
Kohzuma et al. Analysis of plant physiological responses based on leaf color changes through the development and application of a wireless plant sensor
AU2008263711B2 (en) Method and system for characterizing a pigmented biological tissue.
Pan et al. Quasi-3D Fluorescence Spectroscopy for Rapid On-Site Algae Species Analysis (July 2025)
Wang et al. Detecting crop population growth using chlorophyll fluorescence imaging
CN209745804U (zh) 一种基于分时点亮的多通道便携光谱系统
Strömberg et al. A high throughput optical system for imaging optodes
Lazarjan et al. Miniaturized wireless cell spectrophotometer platform in visible and near-IR range
US20240344988A1 (en) Multi-color pulse-amplitude modulated handheld fluorescence imager
CN119533867B (zh) 一种滤光片快速检测系统及其方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11788599

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 112011103545

Country of ref document: DE

Ref document number: 1120111035454

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11788599

Country of ref document: EP

Kind code of ref document: A1