CN108489906B - A kind of crop growing state multiple-angle thinking spectral detection device and its application method - Google Patents
A kind of crop growing state multiple-angle thinking spectral detection device and its application method Download PDFInfo
- Publication number
- CN108489906B CN108489906B CN201810273514.2A CN201810273514A CN108489906B CN 108489906 B CN108489906 B CN 108489906B CN 201810273514 A CN201810273514 A CN 201810273514A CN 108489906 B CN108489906 B CN 108489906B
- Authority
- CN
- China
- Prior art keywords
- detection device
- crop
- spectrum
- fibre
- angle
- 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.)
- Active
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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
-
- 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
- G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
-
- 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
- G01N2021/1793—Remote sensing
- G01N2021/1797—Remote sensing in landscape, e.g. crops
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
The invention discloses a kind of crop growing state multiple-angle thinking spectral detection device and its application method, described device includes column, and column is equipped with control cabinet；Sighting tube is equipped at the top of column, sighting tube one end is equipped with the crop canopies reflection spectrum curve detection device other end and is equipped with sun incident light spectrum curve detection device.The present invention can integrate the spectrometer of two different-waveband ranges, different spectral resolutions, realizes the detection of binary channels synchronous spectrum, greatly reduces the time difference between data, enhance the comparativity between data；Different remote sensor spectrographic detections are carried out to crop canopies using binary channels design, the consistency of measured target object is ensure that, has ensured the reliability and confidence level of long-term sequence data analysis result and scientific research；The sun and the multi-angle detection crop canopies curve of spectrum are automatically tracked, data precision is improved, enhances the confidence level of remote sensing monitoring；Structure is simple, easy to use, carries and uses convenient for field；Save cost.
Description
Technical field
The present invention relates to object spectrum observation, the detection of earth's surface ecology parameter remote sensing signal, agriculture Precision management fields, especially
It is related to a kind of crop growing state multiple-angle thinking spectral detection device and its application method.
Background technique
Light-matter interaction causes the electron transition between substance interior atoms and molecular entergy level, makes suction of the substance to light
Receipts, reflection, transmitting, scattering etc. change on wavelength and strength information, and continuous wavelength spectrum detection instrument is utilized to measure object
In the strength information of each wavelength location, a continuous curve, the as curve of spectrum are constituted.Influence the main of curve of spectrum variation
Factor is object constituent, structure and surface state.If the strength information of record represents object to the reflected intensity of light, it is somebody's turn to do
The curve of spectrum is frequently referred to " reflection spectrum curve "；If spectrum detection instrument measures the strong and weak variation of the sun, the spectrum towards the sun
Curve is known as " sun incident light spectrum curve ".
Different atural objects have different reflection spectrum curve features, and identical atural object is under different conditions also with different anti-
Spectral signature is penetrated, which had both included that atural object itself constitutes state, also included ambient conditions.For field-crop,
Different Crop type has different reflection spectrum curve features, identical agrotype different stages of growth, different growing ways, difference
Also there is different reflection spectrum curve features under health status (i.e. physiological and biochemical index is different), different illumination intensity.To work
The monitoring of object health status is mainly indicated by information such as crop physiology, ecological index parameters, and crop is different
Physiology and biochemistry and ecological parameter require different types of remote sensor again, and the remote-sensing inversion of certain ecology parameters needs to meet most
Low spectral resolution.
Its spectral resolution of existing remote sensor and spectrographic detection range tend not to get both simultaneously, need two spectrum
Instrument collocation uses.The monitoring and evaluation of crop growing state or health status, it is desirable that observed object canopy is self-consistent, and between being able to achieve not
Disconnected continuous observation data are supported.In practical field field-crop Remote Spectra observation experiment, need to open two light respectively
Spectrometer, each spectrometer are taken up in order of priority the curve of spectrum of measurement reference white plate and target crop canopy.Whole operation process is not only
Laborious time-consuming, the detecting location before and after former and later two spectrometers and same spectrometer twice is consistent with highly cannot guarantee that,
Stability is not high, influences the comparativity between data result.
The Indices of many instruction crop growth conditions require to calculate crop canopies spectral reflectivity, and obtain the sun
Incident light spectrum curve data is the premise for calculating canopy spectra reflectivity.Spectroscopic data is usually acquired by reference white plate, closely
Sun incident light spectrum curve data is seemingly represented, always using observed pattern vertically downward；Some scholars can pop one's head in spectrometer
It is horizontal upward, to obtain sun incident light spectrum curve data；The above two method for obtaining sun incident light spectrum curve, observation
Direction cannot change with the azimuthal variation in the sun one day, have certain limitation in practical application, influence crop
The calculating and comparative analysis accuracy of canopy reflectance spectrum.
The detection of near-earth Remote Spectra is primarily to pass through the real-time upgrowth situation of further investigation crop and Remote Spectra for a long time
Relation mechanism between information, further foundation and amendment monitor distant for aerospace satellite remote sensing or low latitude unmanned aerial vehicle remote sensing
Feel monitoring model.Regardless of be airborne and spaceborne RS platform, still increasingly mature low latitude unmanned aerial vehicle remote sensing platform, what is obtained is distant
Sense data are the entire crop canopies spectrum represented on certain space scale, and observation angle is variation, and this requires make
The detection of object canopy near-earth Remote Spectra considers multi-angle characteristic.Past carries out multiple-angle thinking spectral measurement to atural object, often complete
Spectrometer is held by testing crew entirely to be observed, and not only operates large labor intensity, but also acquired data inaccuracy.
Summary of the invention
It is an object of the invention in view of the above shortcomings of the prior art, provide a kind of crop growing state multiple-angle thinking spectrum
Detection device and its application method.
To solve the above problems, the technical solution used in the present invention is:
In a first aspect, providing a kind of crop growing state multiple-angle thinking spectral detection device, including column, set on the column
There is control cabinet, single-chip microcontroller, the wide-band spectrum instrument connecting with the single-chip microcomputer input and narrow-band are equipped in the control cabinet
Spectrometer, the locating module being connect with the single-chip microcomputer input, the time device being connect with the single-chip microcomputer input and
The display screen being connect with the single-chip microcomputer output；Sighting tube is equipped at the top of the column, described sighting tube one end is equipped with crop
Canopy reflectance spectra curve detection device, the sighting tube other end are equipped with sun incident light spectrum curve detection device, the work
Object canopy reflectance spectra curve detection device includes the horizontal rotation motor for being set to the sighting tube lower end surface, the horizontal rotation
It is provided with vertical rotating electric machine mounting base on the output shaft of rotating motor, is provided with vertical rotation in the vertical rotating electric machine mounting base
Rotating motor is provided with canopy reflectance spectra double channel optical fiber probe mounting base on the output shaft of the vertical rotating electric machine, described
Broadband canopy reflectance spectra fibre-optical probe and narrow-band hat are provided in canopy reflectance spectra double channel optical fiber probe mounting base
Layer reflectance spectrum fibre-optical probe, the broadband canopy reflectance spectra fibre-optical probe are connected by optical fiber with wide-band spectrum instrument,
The narrow-band canopy reflectance spectra fibre-optical probe is connected by optical fiber with narrow-band spectrum instrument, the horizontal rotation motor with erect
The control terminal of linear-rotating motor is connect with the output end of single-chip microcontroller respectively；
The sun incident light spectrum curve detection device includes being set to the elevation angle motor peace of the sighting tube upper surface
Seat is filled, elevation angle motor is provided on the elevation angle motor mount, is provided with orientation on the elevation angle motor output shaft
Angle motor mount is provided with azimuth motor in the azimuth motor mounting base, sets on the azimuth motor output shaft
It is equipped with sun incident light spectrum double channel optical fiber probe mounting base, is set in the sun incident light spectrum double channel optical fiber probe mounting base
It is equipped with broadband sun incident light spectrum fibre-optical probe and narrow-band sun incident light spectrum fibre-optical probe, the broadband sun is incident
Spectroscopic fibers probe is connected by optical fiber with wide-band spectrum instrument, and the narrow-band sun incident light spectrum fibre-optical probe passes through optical fiber
It is connected with narrow-band spectrum instrument, the control terminal of the elevation angle motor and azimuth motor connects with the output end of single-chip microcontroller respectively
It connects.
Further technical solution is, the sighting tube includes being set to outer barrel at the top of the column and sliding is set
The interior barrel being placed in the outer barrel, the outer barrel and interior barrel both ends are equipped with several adjusting screw holes, the interior barrel
It is fixed on outer barrel by adjusting bolt.
Further technical solution is that the outer barrel and interior barrel are U-type groove pipe, opening upwards.
Further technical solution is, the column bottom is equipped with telescopic tripod, on the telescopic tripod
Equipped with level meter.
Further technical solution is to set on the column there are three wire drawing fixing bolt, and three wire drawings are fixed
Wire drawing, 120 ° of uniformly arrangement and the one of wire drawings each other of the horizontal sextant angle of three wire drawing fixing bolts are connected separately on bolt
Fixing bolt is located at the underface of the sighting tube sun incident light spectrum curve detection device side.
Further technical solution is, the column includes outer column and the inner column that is sheathed in the outer column,
The outer column is equipped with jackscrew.
Working principle, due to the rotation of the earth, the running track of the sun is not in a plane, the lighting angle of the sun
Quarter at moment is all changing, and is fixed in different seasons, different time, the azimuth of the different place sun and elevation angle
's.By solar elevation and it is azimuthal variation be stored in single-chip microcontroller, single-chip microcontroller control under, obtain current location information and
Temporal information, read with current location, current time corresponding solar elevation and azimuthal numerical value, and issue instruction, control
Elevation angle motor 10 processed and azimuth motor 12 make broadband sun incident light spectrum fibre-optical probe 15 and narrow-band sun incident light
Spectrum fibre-optical probe 24 makees to rotate horizontally simultaneously and the elevation angle rotates, and makes broadband sun incident light spectrum fibre-optical probe 15 and narrow-band too
Positive incident light spectrum fibre-optical probe 24 is directed at the sun, acquires the sun incidence spoke of two different spectral regions, different spectral resolutions
Penetrate the illumination curve of spectrum.
The crop canopies reflection spectrum curve detection device can be according to observation needs, under the control of single-chip microcontroller, control
System rotates horizontally motor 5 and vertical rotating electric machine 7 rotates, and makes broadband canopy reflectance spectra fibre-optical probe 1 and narrow-band canopy
Reflectance spectrum fibre-optical probe 14 acquires immediately below crop canopies reflection spectrum curve detection device and crop canopies reflectance spectrum
Two different spectral regions in east, west and southern four directional bearings immediately below curve detection device, different spectrum point
The crop canopies reflection spectrum curve of resolution.
Second aspect provides a kind of application method of crop growing state multiple-angle thinking spectral detection device, including following step
It is rapid:
Crop growing state multiple-angle thinking spectral detection device is placed on the ground of farmland by S1, and the sighting tube, which is equipped with, to be made
South is directed toward in one end of object canopy reflectance spectra curve detection device, and the sighting tube is equipped with sun incident light spectrum curve detection dress
The north is directed toward in the one end set, and according to the height of detection target crop, adjusts the telescopic height of column, and sighting tube is made to be located at target work
Above object canopy at 1 meter；
S2, reference level instrument adjust telescopic tripod and wire drawing, keep whole device holding horizontal and stablize；
S3, according to target crop canopy between column at a distance from, adjustment sighting tube stretch out length, keep broadband canopy anti-
Spectroscopic fibers probe and narrow-band canopy reflectance spectra fibre-optical probe following position directly is penetrated to keep at a distance from 1 meter or more with column；
The detection angle of each directional bearing of crop canopies reflection spectrum curve detection device, the directional bearing is arranged in S4
Including immediately below crop canopies reflection spectrum curve detection device and immediately below crop canopies reflection spectrum curve detection device
East, west and southern four orientation, the detection angle immediately below the crop canopies reflection spectrum curve detection device is
0 °, east, west and southern detection angle immediately below the crop canopies reflection spectrum curve detection device are 0 ° -90 °
Between random angle angle value；
S5, start a cycle then a cycle continuous spectrum detection.
Further technical solution is, the spectrographic detection in one period the following steps are included:
S10 obtains current location information and temporal information, reads altitude of the sun corresponding with current location, current time
Angle and azimuthal numerical value, and instruction is issued, elevation angle motor and azimuth motor are controlled, broadband sun incident light spectrum light is made
Fine probe and narrow-band sun incident light spectrum fibre-optical probe are directed at the sun, and it is spectrally resolved to acquire two different spectral regions, differences
The sun incident radiation illumination curve of spectrum of rate is simultaneously sent to single-chip microcontroller；
S20 resets crop canopies reflection spectrum curve detection device, and the output shaft of vertical rotating electric machine is made to be directed toward east,
Broadband canopy reflectance spectra fibre-optical probe and narrow-band canopy in canopy reflectance spectra double channel optical fiber probe mounting base is anti-
Spectroscopic fibers probe is penetrated towards underface, acquires two different spectral regions, the crop canopies reflected light of different spectral resolutions
Spectral curve is simultaneously sent to single-chip microcontroller；Vertical rotating electric machine is controlled, broadband canopy reflectance spectra fibre-optical probe and narrow-band are preced with
Layer reflectance spectrum fibre-optical probe turns to the corresponding spy in south immediately below the crop canopies reflection spectrum curve detection device
Measuring angle, acquire two different spectral regions, different spectral resolutions crop canopies reflection spectrum curve and be sent to monolithic
Machine；Then controlled level rotating electric machine makes vertical rotating electric machine mounting base rotate clockwise 90 °, then controls vertical rotating electric machine,
Broadband canopy reflectance spectra fibre-optical probe and narrow-band canopy reflectance spectra fibre-optical probe is set to turn to the crop canopies anti-
The corresponding detection angle in east immediately below curve of spectrum detection device is penetrated, two different spectral regions, different spectrum point are acquired
The crop canopies reflection spectrum curve of resolution is simultaneously sent to single-chip microcontroller；Vertical rotating electric machine is finally controlled, keeps broadband canopy anti-
It penetrates spectroscopic fibers probe and narrow-band canopy reflectance spectra fibre-optical probe turns to the crop canopies reflection spectrum curve detection
The corresponding detection angle in west immediately below device acquires the crop canopies of two different spectral regions, different spectral resolutions
Reflection spectrum curve is simultaneously sent to single-chip microcontroller；
S30 is adopted using broadband sun incident light spectrum fibre-optical probe and narrow-band sun incident light spectrum fibre-optical probe again
Collect two different spectral regions, different spectral resolutions the sun incident radiation illumination curve of spectrum and be sent to single-chip microcontroller.
Further technical solution is, further comprising the steps of:
S40, using the sun incident radiation illumination curve of spectrum of the institute of acquisition twice before and after S10 and S30, calculating average value,
Obtain the sun incident light spectrum curve data in the detection cycle；
S50, by S20 acquisition institute crop canopies reflection spectrum curve divided by S40 calculate obtained by sun incident light spectrum curve
Data obtain crop canopies spectral reflectivity curve data；
S60 further calculates reflection crop growthing state based on crop canopies spectral reflectivity curve data obtained by S50
Indices information.
Further technical solution is that the Indices information includes photochemical reflectance index (PRI), normalization plant
By index (NDVI) and normalization chlorophyll index (NPCI).
The beneficial effects of adopting the technical scheme are that
(1) spectrometer that can integrate two different-waveband ranges, different spectral resolutions, realizes binary channels synchronizable optical
Spectrum detection, greatly reduces the time difference between data, enhances the comparativity between data；
(2) it is designed using binary channels and different remote sensor spectrographic detections is carried out to crop canopies, ensure that measured target
The consistency of object has ensured the reliability and confidence level of long-term sequence data analysis result and scientific research；
(3) sun is automatically tracked, sun incident light spectrum curve is detected, improves data precision, enhance remote sensing monitoring mould
The confidence level of type；
(4) multi-angle detects the crop canopies curve of spectrum, enhances the comparison between satellite remote sensing, unmanned aerial vehicle remote sensing data
Property, improve the analysis precision of crop Gernral Check-up Remote Sensing Model；
(5) multi-angle design principle is used, can meet the needs of different type ground remote sensing test for greater flexibility；
(6) structure is simple, easy to use, carries and uses convenient for field；
(7) it not only ensure that spectrographic detection data precision requirement, but also improved work efficiency, and saved time cost and manpower
Cost.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of crop growing state multiple-angle thinking spectral detection device of the present invention；
Fig. 2 is a kind of structural schematic diagram of crop growing state multiple-angle thinking spectral detection device other direction of the present invention.
In figure: 1, broadband canopy reflectance spectra fibre-optical probe；2, control cabinet；3, outer barrel；4, interior barrel；5, horizontal rotation
Rotating motor；6, vertical rotating electric machine mounting base；7, vertical rotating electric machine；8, canopy reflectance spectra double channel optical fiber probe installation
Seat；9, elevation angle motor mount；10, elevation angle motor；11, azimuth motor mounting base；12, azimuth motor；13, the sun
Incident light spectrum double channel optical fiber probe mounting base；14, narrow-band canopy reflectance spectra fibre-optical probe；15, the broadband sun is incident
Spectroscopic fibers probe；16, outer column；17, inner column；18, jackscrew；19, fixed sleeving；20, moving casing；21, support rod；
22, connecting rod；23, wire drawing fixing bolt；24, narrow-band sun incident light spectrum fibre-optical probe.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply opposite
Importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As depicted in figs. 1 and 2, a kind of crop growing state multiple-angle thinking spectral detection device, including column, on the column
Equipped with control cabinet 2, equipped with single-chip microcontroller, the wide-band spectrum instrument being connect with the single-chip microcomputer input and narrow in the control cabinet 2
Band of light spectrometer, the locating module being connect with the single-chip microcomputer input, the time device being connect with the single-chip microcomputer input,
And the display screen being connect with the single-chip microcomputer output；In the present embodiment, the locating module is GPS module, single-chip microcontroller
The location information of device is obtained by GPS module, the time device is electronic calendar, and single-chip microcontroller is obtained by electronic calendar
Device temporal information, the display screen be used for system information output, can show date, the time, the same day sunrise time,
Sunset time, the information such as solar elevation, azimuth at that time.Sighting tube, described sighting tube one end are equipped at the top of the column
Equipped with crop canopies reflection spectrum curve detection device, the sighting tube other end is equipped with sun incident light spectrum curve detection dress
It sets, the crop canopies reflection spectrum curve detection device includes the horizontal rotation motor 5 for being set to the sighting tube lower end surface,
Vertical rotating electric machine mounting base 6, the vertical rotating electric machine mounting base 6 are provided on the output shaft for rotating horizontally motor 5
On be provided with vertical rotating electric machine 7, be provided with canopy reflectance spectra double channel optical fiber on the output shaft of the vertical rotating electric machine 7
It pops one's head in mounting base 8, is provided with broadband canopy reflectance spectra light in canopy reflectance spectra double channel optical fiber probe mounting base 8
Fibre probe 1 and narrow-band canopy reflectance spectra fibre-optical probe 14, the broadband canopy reflectance spectra fibre-optical probe 1 pass through optical fiber
It is connected with wide-band spectrum instrument, the narrow-band canopy reflectance spectra fibre-optical probe 14 passes through optical fiber and narrow-band spectrum instrument phase
Even, the control terminal of the horizontal rotation motor 5 and vertical rotating electric machine 7 is connect with the output end of single-chip microcontroller respectively；
The sun incident light spectrum curve detection device includes being set to the elevation angle motor peace of the sighting tube upper surface
Seat 9 is filled, elevation angle motor 10 is provided on the elevation angle motor mount 9, is arranged on 10 output shaft of elevation angle motor
There is azimuth motor mounting base 11, azimuth motor 12, the azimuth electricity are provided in the azimuth motor mounting base 11
Sun incident light spectrum double channel optical fiber probe mounting base 13, the sun incident light spectrum binary channels light are provided on 12 output shaft of machine
Broadband sun incident light spectrum fibre-optical probe 15 is provided in fibre probe mounting base 13 and narrow-band sun incident light spectrum optical fiber is visited
First 24, the broadband sun incident light spectrum fibre-optical probe 15 is connected by optical fiber with wide-band spectrum instrument, and the narrow-band is too
Positive incident light spectrum fibre-optical probe 24 is connected by optical fiber with narrow-band spectrum instrument, the elevation angle motor 10 and azimuth motor 12
Control terminal connect respectively with the output end of single-chip microcontroller.
The sighting tube includes being set to the outer barrel 3 at the top of the column and being slideably positioned in the outer barrel 3
Interior barrel 4, the outer barrel 3 and 4 both ends of interior barrel are equipped with several adjusting screw holes, and the interior barrel 4 is solid by adjusting bolt
It is scheduled on outer barrel 3.
The outer barrel 3 and interior barrel 4 are U-type groove pipe, opening upwards.
The column bottom is equipped with telescopic tripod, and the telescopic tripod includes being fixedly installed on the column bottom
The fixed sleeving 19 at end, 20, three support rods 21 of moving casing being slideably positioned on the column and three connecting rods 22, it is described
Fixed sleeving 19 is equipped with the level meter (not shown) for level-off when stringer, three support rods
21 upper end is all hinged on the moving casing 20, the horizontal sextant angle of three support rods 21 each other 120 ° uniformly arrangement and wherein
One support rod 21 be located at the sun incident light spectrum curve detection device of the sighting tube lower section at one end, in addition two support
Bar 21 be located at the crop canopies reflection spectrum curve detection device of the sighting tube two sides at one end, avoid scalable three foot
Frame impacts the detection of crop canopies Remote Spectra, and three described 22 one end of connecting rod are respectively hinged in three support rods 21
The other end in portion, three connecting rods 22 is all hinged on fixed sleeving 19.
It is set on the column there are three wire drawing fixing bolt 23, is connected separately with drawing on three wire drawing fixing bolts 23
Silk (being not drawn into figure), the horizontal sextant angle of three wire drawing fixing bolts 23 each other 120 ° uniformly arrangement and one of wire drawing fix
Bolt 23 be located at the sun incident light spectrum curve detection device of the sighting tube underface at one end.
The column includes outer column 16 and the inner column 17 that is sheathed in the outer column 16, is set on the outer column 16
There is jackscrew 18.
Working principle, due to the rotation of the earth, the running track of the sun is not in a plane, the lighting angle of the sun
Quarter at moment is all changing, and is fixed in different seasons, different time, the azimuth of the different place sun and elevation angle
's.By solar elevation and it is azimuthal variation be stored in single-chip microcontroller, single-chip microcontroller control under, obtain current location information and
Temporal information, read with current location, current time corresponding solar elevation and azimuthal numerical value, and issue instruction, control
Elevation angle motor 10 processed and azimuth motor 12 make broadband sun incident light spectrum fibre-optical probe 15 and narrow-band sun incident light
Spectrum fibre-optical probe 24 makees to rotate horizontally simultaneously and the elevation angle rotates, and makes broadband sun incident light spectrum fibre-optical probe 15 and narrow-band too
Positive incident light spectrum fibre-optical probe 24 is directed at the sun, acquires the sun incidence spoke of two different spectral regions, different spectral resolutions
Penetrate the illumination curve of spectrum.
The crop canopies reflection spectrum curve detection device can be according to observation needs, under the control of single-chip microcontroller, control
System rotates horizontally motor 5 and vertical rotating electric machine 7 rotates, and makes broadband canopy reflectance spectra fibre-optical probe 1 and narrow-band canopy
Reflectance spectrum fibre-optical probe 14 acquires immediately below crop canopies reflection spectrum curve detection device and crop canopies reflectance spectrum
Two different spectral regions in east, west and southern four directional bearings immediately below curve detection device, different spectrum point
The crop canopies reflection spectrum curve of resolution.
The application method of above-mentioned crop growing state multiple-angle thinking spectral detection device, comprising the following steps:
Crop growing state multiple-angle thinking spectral detection device is placed on the ground of farmland by S1, and the sighting tube, which is equipped with, to be made
South is directed toward in one end of object canopy reflectance spectra curve detection device, and the sighting tube is equipped with sun incident light spectrum curve detection dress
The north is directed toward in the one end set, and according to the height of detection target crop, adjusts the telescopic height of column, and sighting tube is made to be located at target work
Above object canopy at 1 meter；
S2, reference level instrument adjust telescopic tripod and wire drawing, keep whole device holding horizontal and stablize, and make
Three wire drawings avoid telescopic tripod and wire drawing to work respectively with three support rods of telescopic tripod in same vertical guide
Object canopy Remote Spectra detection result impacts；
S3, according to target crop canopy between column at a distance from, adjustment sighting tube stretch out length, keep broadband canopy anti-
Penetrate spectroscopic fibers probe 1 and 14 following position directly of narrow-band canopy reflectance spectra fibre-optical probe and column keep 1 meter or more away from
From；
The detection angle of each directional bearing of crop canopies reflection spectrum curve detection device, the directional bearing is arranged in S4
Including immediately below crop canopies reflection spectrum curve detection device and immediately below crop canopies reflection spectrum curve detection device
East, west and southern four orientation, the detection angle immediately below the crop canopies reflection spectrum curve detection device is
0 °, east, west and southern detection angle immediately below the crop canopies reflection spectrum curve detection device are 0 ° -90 °
Between random angle angle value；
S5, start a cycle then a cycle continuous spectrum detection；
In the step S5 a cycle spectrographic detection the following steps are included:
S10 obtains current location information and temporal information, reads altitude of the sun corresponding with current location, current time
Angle and azimuthal numerical value, and instruction is issued, elevation angle motor and azimuth motor are controlled, broadband sun incident light spectrum light is made
Fine probe and narrow-band sun incident light spectrum fibre-optical probe are directed at the sun, and it is spectrally resolved to acquire two different spectral regions, differences
The sun incident radiation illumination curve of spectrum of rate is simultaneously sent to single-chip microcontroller；
S20 resets crop canopies reflection spectrum curve detection device, and the output shaft of vertical rotating electric machine is made to be directed toward east,
Broadband canopy reflectance spectra fibre-optical probe and narrow-band canopy in canopy reflectance spectra double channel optical fiber probe mounting base is anti-
Spectroscopic fibers probe is penetrated towards underface, acquires two different spectral regions, the crop canopies reflected light of different spectral resolutions
Spectral curve is simultaneously sent to single-chip microcontroller；Vertical rotating electric machine is controlled, broadband canopy reflectance spectra fibre-optical probe and narrow-band are preced with
Layer reflectance spectrum fibre-optical probe turns to the corresponding spy in south immediately below the crop canopies reflection spectrum curve detection device
Measuring angle, acquire two different spectral regions, different spectral resolutions crop canopies reflection spectrum curve and be sent to monolithic
Machine；Then controlled level rotating electric machine makes vertical rotating electric machine mounting base rotate clockwise 90 °, then controls vertical rotating electric machine,
Broadband canopy reflectance spectra fibre-optical probe and narrow-band canopy reflectance spectra fibre-optical probe is set to turn to the crop canopies anti-
The corresponding detection angle in east immediately below curve of spectrum detection device is penetrated, two different spectral regions, different spectrum point are acquired
The crop canopies reflection spectrum curve of resolution is simultaneously sent to single-chip microcontroller；Vertical rotating electric machine is finally controlled, keeps broadband canopy anti-
It penetrates spectroscopic fibers probe and narrow-band canopy reflectance spectra fibre-optical probe turns to the crop canopies reflection spectrum curve detection
The corresponding detection angle in west immediately below device acquires the crop canopies of two different spectral regions, different spectral resolutions
Reflection spectrum curve is simultaneously sent to single-chip microcontroller；
S30 is adopted using broadband sun incident light spectrum fibre-optical probe and narrow-band sun incident light spectrum fibre-optical probe again
Collect two different spectral regions, different spectral resolutions the sun incident radiation illumination curve of spectrum and be sent to single-chip microcontroller.
It is further comprising the steps of:
S40, using the sun incident radiation illumination curve of spectrum of the institute of acquisition twice before and after S10 and S30, calculating average value,
Obtain the sun incident light spectrum curve data in the detection cycle；
S50, by S20 acquisition institute crop canopies reflection spectrum curve divided by S40 calculate obtained by sun incident light spectrum curve
Data obtain crop canopies spectral reflectivity curve data；
S60 further calculates reflection crop growthing state based on crop canopies spectral reflectivity curve data obtained by S50
Indices information.
The Indices information includes photochemical reflectance index (PRI), normalized differential vegetation index (NDVI) and normalization
Chlorophyll index (NPCI).
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations will fall in this Shen
It please be within disclosed scope and spirit.More specifically, disclose in the application, drawings and claims in the range of, can
With the building block and/or a variety of variations and modifications of layout progress to theme combination layout.In addition to building block and/or layout
Outside the modification and improvement of progress, to those skilled in the art, other purposes also be will be apparent.
Claims (9)
1. a kind of crop growing state multiple-angle thinking spectral detection device, which is characterized in that including column, the column is equipped with control
Case (2) processed, the control cabinet (2) are interior equipped with single-chip microcontroller, the wide-band spectrum instrument and narrow wave that connect with the single-chip microcomputer input
Section spectrometer, connect with the single-chip microcomputer input locating module, connect with the single-chip microcomputer input time device, with
And the display screen being connect with the single-chip microcomputer output；Sighting tube is equipped at the top of the column, described sighting tube one end, which is equipped with, to be made
Object canopy reflectance spectra curve detection device, the sighting tube other end is equipped with sun incident light spectrum curve detection device, described
Crop canopies reflection spectrum curve detection device includes the horizontal rotation motor (5) for being set to the sighting tube lower end surface, described
It rotates horizontally and is provided with vertical rotating electric machine mounting base (6), the vertical rotating electric machine mounting base on the output shaft of motor (5)
(6) it is provided on vertical rotating electric machine (7), it is double that canopy reflectance spectra is provided on the output shaft of the vertical rotating electric machine (7)
Channel fiber is popped one's head in mounting base (8), and broadband hat is provided on canopy reflectance spectra double channel optical fiber probe mounting base (8)
Layer reflectance spectrum fibre-optical probe (1) and narrow-band canopy reflectance spectra fibre-optical probe (14), the broadband canopy reflectance spectra
Fibre-optical probe (1) is connected by optical fiber with wide-band spectrum instrument, and the narrow-band canopy reflectance spectra fibre-optical probe (14) passes through
Optical fiber is connected with narrow-band spectrum instrument, the control terminal for rotating horizontally motor (5) and vertical rotating electric machine (7) respectively with monolithic
The output end of machine connects；
The sun incident light spectrum curve detection device includes the elevation angle motor mount for being set to the sighting tube upper surface
(9), it is provided with elevation angle motor (10) on the elevation angle motor mount (9), on elevation angle motor (10) output shaft
It is provided with azimuth motor mounting base (11), is provided with azimuth motor (12), institute on the azimuth motor mounting base (11)
It states and is provided with sun incident light spectrum double channel optical fiber probe mounting base (13) on azimuth motor (12) output shaft, the sun enters
It penetrates on spectrum double channel optical fiber probe mounting base (13) and is provided with broadband sun incident light spectrum fibre-optical probe (15) and narrow-band
Sun incident light spectrum fibre-optical probe (24), the broadband sun incident light spectrum fibre-optical probe (15) pass through optical fiber and broadband light
Spectrometer is connected, and the narrow-band sun incident light spectrum fibre-optical probe (24) is connected by optical fiber with narrow-band spectrum instrument, the height
The control terminal of degree angle motor (10) and azimuth motor (12) is connect with the output end of single-chip microcontroller respectively.
2. a kind of crop growing state multiple-angle thinking spectral detection device according to claim 1, which is characterized in that the sight
Test tube includes the interior barrel (4) for being set to the outer barrel (3) at the top of the column and being slideably positioned in the outer barrel (3),
The outer barrel (3) and interior barrel (4) both ends are equipped with several adjusting screw holes, and the interior barrel (4) is fixed by adjusting bolt
On outer barrel (3).
3. a kind of crop growing state multiple-angle thinking spectral detection device according to claim 2, which is characterized in that described outer
Barrel (3) and interior barrel (4) are U-type groove pipe, opening upwards.
4. a kind of crop growing state multiple-angle thinking spectral detection device according to claim 3, which is characterized in that institute
Column bottom is stated equipped with telescopic tripod, the telescopic tripod is equipped with level meter.
5. a kind of crop growing state multiple-angle thinking spectral detection device according to claim 4, which is characterized in that described vertical
There are three setting on column wire drawing fixing bolt (23), wire drawing, three drawings are connected separately on three wire drawing fixing bolts (23)
Silk fixing bolt (23) horizontal sextant angle each other 120 ° uniformly arrangement and one of wire drawing fixing bolt (23) be located at the sight
The underface of test tube sun incident light spectrum curve detection device side.
6. a kind of crop growing state multiple-angle thinking spectral detection device according to claim 5, which is characterized in that described vertical
Column includes outer column (16) and the inner column (17) being sheathed in the outer column (16), and the outer column (16) is equipped with jackscrew
(18).
7. a kind of application method of crop growing state multiple-angle thinking spectral detection device as claimed in claim 6, feature exist
In, comprising the following steps:
Crop growing state multiple-angle thinking spectral detection device is placed on the ground of farmland by S1, and the sighting tube is preced with equipped with crop
South is directed toward in one end of layer reflection spectrum curve detection device, and the sighting tube is equipped with sun incident light spectrum curve detection device
The north is directed toward in one end, according to the height of detection target crop, adjusts the telescopic height of column, and sighting tube is made to be located at target crop hat
At 1 meter of layer top；
S2, reference level instrument adjust telescopic tripod and wire drawing, keep whole device holding horizontal and stablize；
S3, according to target crop canopy between column at a distance from, adjustment sighting tube stretch out length, make broadband canopy reflected light
Compose fibre-optical probe (1) and narrow-band canopy reflectance spectra fibre-optical probe (14) following position directly and 1 meter of column holding or more away from
From；
S4, is arranged the detection angle of each directional bearing of crop canopies reflection spectrum curve detection device, and the directional bearing includes
East immediately below crop canopies reflection spectrum curve detection device and immediately below crop canopies reflection spectrum curve detection device
Side, west and southern four orientation, the detection angle immediately below the crop canopies reflection spectrum curve detection device is 0 °, institute
It states between east, west and southern detection angle immediately below crop canopies reflection spectrum curve detection device be 0 ° -90 °
Random angle angle value；
S5, start a cycle then a cycle continuous spectrum detection；
The spectrographic detection in one period the following steps are included:
S10 obtains current location information and temporal information, read solar elevation corresponding with current location, current time and
Azimuthal numerical value, and instruction is issued, elevation angle motor (10) and azimuth motor (12) are controlled, broadband sun incident light is made
Compose fibre-optical probe (15) and narrow-band sun incident light spectrum fibre-optical probe (24) and be directed at the sun, acquire two difference spectral regions,
The sun incident radiation illumination curve of spectrum of different spectral resolutions is simultaneously sent to single-chip microcontroller；
S20 resets crop canopies reflection spectrum curve detection device, and the output shaft of vertical rotating electric machine (7) is made to be directed toward east, hat
Broadband canopy reflectance spectra fibre-optical probe (1) and narrow-band hat on layer reflectance spectrum double channel optical fiber probe mounting base (8)
Layer reflectance spectrum fibre-optical probe (14) acquires the crop hat of two different spectral regions, different spectral resolutions towards underface
Layer reflection spectrum curve is simultaneously sent to single-chip microcontroller；Vertical rotating electric machine (7) are controlled, broadband canopy reflectance spectra fibre-optical probe is made
(1) and under narrow-band canopy reflectance spectra fibre-optical probe (14) turns to the crop canopies reflection spectrum curve detection device just
The corresponding detection angle in south of side acquires two different spectral regions, the crop canopies reflectance spectrum of different spectral resolutions
Curve is simultaneously sent to single-chip microcontroller；Then controlled level rotating electric machine (5) rotates clockwise vertical rotating electric machine mounting base (6)
90 °, then vertical rotating electric machine (7) are controlled, make broadband canopy reflectance spectra fibre-optical probe (1) and narrow-band canopy reflectance spectra
Fibre-optical probe (14) turns to the corresponding detection angle in east immediately below the crop canopies reflection spectrum curve detection device,
Acquire two different spectral regions, different spectral resolutions crop canopies reflection spectrum curve and be sent to single-chip microcontroller；Finally
Vertical rotating electric machine (7) are controlled, broadband canopy reflectance spectra fibre-optical probe (1) and narrow-band canopy reflectance spectra optical fiber are visited
Head (14) turns to the corresponding detection angle in west immediately below the crop canopies reflection spectrum curve detection device, acquisition two
A difference spectral region, different spectral resolution crop canopies reflection spectrum curve and be sent to single-chip microcontroller；
S30 utilizes broadband sun incident light spectrum fibre-optical probe (15) and narrow-band sun incident light spectrum fibre-optical probe again
(24) acquire two different spectral regions, different spectral resolutions the sun incident radiation illumination curve of spectrum and be sent to monolithic
Machine.
8. a kind of application method of crop growing state multiple-angle thinking spectral detection device according to claim 7, feature
It is, further comprising the steps of:
S40, using the acquisition gained sun incident radiation illumination curve of spectrum, calculating average value must be somebody's turn to do twice before and after S10 and S30
Sun incident light spectrum curve data in detection cycle；
S20 is acquired gained crop canopies reflection spectrum curve and calculates gained sun incident light spectrum curve number divided by S40 by S50
According to obtaining crop canopies spectral reflectivity curve data；
S60 further calculates the distant of reflection crop growthing state based on crop canopies spectral reflectivity curve data obtained by S50
Feel index information.
9. a kind of application method of crop growing state multiple-angle thinking spectral detection device according to claim 8, feature
It is, the Indices information includes that photochemical reflectance index (PRI), normalized differential vegetation index (NDVI) and normalization leaf are green
Plain index (NPCI).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810273514.2A CN108489906B (en) | 2018-03-29 | 2018-03-29 | A kind of crop growing state multiple-angle thinking spectral detection device and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810273514.2A CN108489906B (en) | 2018-03-29 | 2018-03-29 | A kind of crop growing state multiple-angle thinking spectral detection device and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108489906A CN108489906A (en) | 2018-09-04 |
| CN108489906B true CN108489906B (en) | 2019-01-22 |
Family
ID=63317350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810273514.2A Active CN108489906B (en) | 2018-03-29 | 2018-03-29 | A kind of crop growing state multiple-angle thinking spectral detection device and its application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108489906B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405769A (en) * | 2018-12-10 | 2019-03-01 | 中国气象局兰州干旱气象研究所 | Vegetation canopy leaf area index measuring device |
| CN110058550A (en) * | 2019-04-29 | 2019-07-26 | 李志海 | A kind of farmland robot automatic shift body of rod control system |
| CN110046613B (en) * | 2019-05-16 | 2023-10-24 | 北京农业信息技术研究中心 | Crop canopy in-situ growth phenotype monitoring device and three-dimensional reconstruction method |
| CN110834729B (en) * | 2019-11-06 | 2021-03-02 | 北京农业智能装备技术研究中心 | Unmanned aerial vehicle based on spectrum detection and spraying control method |
| CN111739309B (en) * | 2020-07-23 | 2022-01-14 | 湖南星图空间信息技术有限公司 | Traffic flow monitoring device based on remote sensing technology |
| CN112179414A (en) * | 2020-10-08 | 2021-01-05 | 广东后海控股股份有限公司 | Crop growth thing networking monitoring system |
| CN112460439A (en) * | 2020-11-05 | 2021-03-09 | 内蒙古工业大学 | Vegetation canopy spectrum two-way reflection distribution observation support and method |
| CN112834028A (en) * | 2020-12-29 | 2021-05-25 | 安徽中科谱锐达光电有限公司 | Multi-angle broadband surface reflectivity measuring device and method |
| CN114166756B (en) * | 2021-12-08 | 2023-03-10 | 江西师范大学 | Vegetation stem leaf covering and overlapping degree measuring device and method |
| CN114427877A (en) * | 2022-04-07 | 2022-05-03 | 中国科学院空天信息创新研究院 | Near-ground aerial multi-angle remote sensing observation system |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1566928A (en) * | 2003-06-12 | 2005-01-19 | 北京农业信息技术研究中心 | Measurement normalization vegetation differential index method and instrument |
| US7408145B2 (en) * | 2003-09-23 | 2008-08-05 | Kyle Holland | Light sensing instrument with modulated polychromatic source |
| CN100480679C (en) * | 2004-09-09 | 2009-04-22 | 北京农业信息技术研究中心 | Measurement and measuring device for crop crown layer pigment ratio |
| CN100510709C (en) * | 2007-01-17 | 2009-07-08 | 南京农业大学 | Portable multiway crop leaf nitrogen nutrient index nondestructive monitoring device |
| CN104655277B (en) * | 2015-02-05 | 2016-06-08 | 广东海洋大学 | Spectral measurement observation Intelligent Supports Made |
| JP6526474B2 (en) * | 2015-04-30 | 2019-06-05 | 株式会社トプコン | Plant sensor device |
| CN107532997B (en) * | 2015-05-12 | 2021-06-18 | 柯尼卡美能达株式会社 | Plant growth index measuring device, method thereof, and plant growth index measuring system |
| CN104865191B (en) * | 2015-06-15 | 2017-05-03 | 武汉大学 | Double-channel self-checking system and method for water body apparent spectrum observation |
| CN105698931A (en) * | 2016-01-27 | 2016-06-22 | 北京师范大学 | A multi-point spectrum acquisition apparatus |
| CN206292152U (en) * | 2016-12-08 | 2017-06-30 | 河北省科学院地理科学研究所 | Countryside portable Vegetation canopy spectrum observation support |
-
2018
- 2018-03-29 CN CN201810273514.2A patent/CN108489906B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108489906A (en) | 2018-09-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108489906B (en) | A kind of crop growing state multiple-angle thinking spectral detection device and its application method | |
| CN101608997B (en) | Device and method for collecting space two-dimensional spectrum data | |
| CN101694458B (en) | Hyperspectral radiation observation system of the upper and lower surfaces of ice layer | |
| CN102735632B (en) | Apparatus and method for measuring horizontal distribution and near surface vertical distribution of atmosphere pollution gas by using sky diffusion light | |
| CN102944530B (en) | Real-time telemetry system and method of greenhouse gas column concentration | |
| CN103293116B (en) | Automatic continuous detection device of micro-pulse differential absorption lidar water vapor spatial and temporal distribution | |
| CN101881725B (en) | Automatic monitoring system of greenhouse crop growth conditions based on reflection spectrum | |
| CN105158811B (en) | The ground-object spectrum harvester of simulating reality scene and acquisition method | |
| CN104155007A (en) | Multi-angle full-automatic earth surface fine emissivity spectrum collecting system device | |
| CN110291368A (en) | The assessment of multisensor irradiation level | |
| CN108286962A (en) | A kind of method for building up and system of water environment library of spectra | |
| Wang et al. | Temperature and emissivity separation algorithm for TASI airborne thermal hyperspectral data | |
| CN108362374A (en) | A kind of live spectral calibration and Calibration Method of field ultraphotic spectrum irradiance instrument | |
| CN201780267U (en) | Automatic greenhouse crop growth status monitoring system based on reflection spectrum | |
| Leuning et al. | A multi-angle spectrometer for automatic measurement of plant canopy reflectance spectra | |
| CN111458025A (en) | Device and method for remote sensing reflectivity conversion | |
| CN108267402B (en) | A kind of portable manual multi-angle observation device | |
| CN112285068A (en) | Device and method for measuring atmospheric transmittance by unmanned aerial vehicle in sections | |
| Timmermans et al. | An overview of the Regional Experiments for Land-atmosphere Exchanges 2012 (REFLEX 2012) campaign | |
| CN105158171B (en) | Crop nitrogen sensor spectrum calibration method | |
| Coburn et al. | ULGS II: a high-performance field and laboratory spectrogoniometer for measuring hyperspectral bidirectional reflectance characteristics | |
| CN109373937A (en) | Vegetation canopy leaf area index measurement method | |
| CN103234637A (en) | Atmospheric radiation spectrum polarization information measuring system | |
| CN208872657U (en) | Measuring device in a kind of atural object bidirectional reflectance room | |
| CN103398695B (en) | Distance measurement system and distance measurement method applied to canopy reflectance spectra measurement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |