CN109540843A - A kind of cirrus survey meter becoming visual field based on image - Google Patents
A kind of cirrus survey meter becoming visual field based on image Download PDFInfo
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- CN109540843A CN109540843A CN201811294596.5A CN201811294596A CN109540843A CN 109540843 A CN109540843 A CN 109540843A CN 201811294596 A CN201811294596 A CN 201811294596A CN 109540843 A CN109540843 A CN 109540843A
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- G—PHYSICS
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- 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
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
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Abstract
The present invention relates to a kind of cirrus survey meters for becoming visual field based on image, including upper industrial personal computer, lower computer control system, motor driven systems, temperature control system, CCD imaging acquisition system；The upper industrial personal computer and lower computer control system two-way communication link, lower computer control system and temperature control system two-way communication link, the input terminal of the output end connection motor driven systems of lower computer control system, for driving CCD imaging acquisition system to rotate, the temperature control system is used to provide the temperature environment of setting for CCD imaging acquisition system motor driven systems；The motor driven systems include horizontal tilt stepper motor and filter wheel motor, and the output end of the lower computer control system is separately connected the control signal of horizontal tilt stepper motor and filter wheel motor；The horizontal tilt stepper motor is for driving CCD imaging acquisition system to rotate.Light path design of the present invention is simple, detection time is short, while improving the detection accuracy of cirrus.
Description
Technical field
The invention belongs to aeromerric moasurenont instrument and equipment fields, in particular relate to a kind of cirrus spy for becoming visual field based on image
Survey instrument.
Background technique
Particulate and cloud have important shadow to atmospheric radiative transfer, photoelectric project application, weather and climate change
It rings.Especially cirrus or a kind of background radiation strong interferers have very strong forward scattering and reflected sunlight, to space mesh
Mark Tan Ce not be played an important role with the observation of satellite remote sensing of the earth.Cirrus layer is higher, and relatively thin and translucency is good, detection compared with
For difficulty, cirrus can also interfere with the property of ground apparatus measures particulate, and the Microphysical of cirrus and optical characteristics also one
It is directly the hot issue studied in the world.
Currently, the instrument and equipment light path design for cirrus detection is complicated, at high cost, and detection time is longer；Meanwhile by
In taking complicated light path design, error is easy superposition, and detection accuracy is also relatively general.
Summary of the invention
According to problems of the prior art, the present invention provides a kind of cirrus survey meter for becoming visual field based on image,
Its light path design is simple, detection time is short, while improving the detection accuracy of cirrus.
The invention adopts the following technical scheme:
A kind of cirrus survey meter becoming visual field based on image, including upper industrial personal computer, lower computer control system, motor driven
System, temperature control system, CCD imaging acquisition system；The upper industrial personal computer and lower computer control system two-way communication link, it is the next
Machine control system and temperature control system two-way communication link, the input of the output end connection motor driven systems of lower computer control system
End, for driving CCD imaging acquisition system to rotate, the temperature control system is used to be CCD imaging acquisition system motor driven systems
The temperature environment of setting is provided.
Preferably, the motor driven systems include horizontal tilt stepper motor and filter wheel motor, the bottom
The output end of machine control system is separately connected the control signal of horizontal tilt stepper motor and filter wheel motor；The water
Flat pitching stepper motor is for driving CCD imaging acquisition system to rotate.
It is further preferred that the CCD imaging acquisition system includes CCD imaging optical system and image capturing system, and
Image capturing system includes high precision image capture card and ccd image sensor；The horizontal tilt stepper motor is for driving
CCD imaging optical system and ccd image sensor rotation, the temperature control system are used to provide setting for ccd image sensor
Temperature environment, the input terminal of the output end connection high precision image capture card of the ccd image sensor.
Still more preferably, the CCD imaging optical system includes the lens barrel front end set gradually along direction of illumination
Optical system and rear end focus lens group；The lens barrel front end optical system include set gradually along direction of illumination four not
With the diaphragm in aperture, condenser lens, turntable, field stop；The diaphragm, condenser lens, turntable, field stop, rear end focus
Lens group is coaxially disposed；The filter wheel motor is for driving turntable to rotate.
Still more preferably, the aperture of four diaphragms is sequentially reduced setting along direction of illumination；The visual field light
Door screen is located on the focal plane of condenser lens；The ccd image sensor is located on the focal plane of rear end focus lens group.
Still more preferably, the turntable is vertically arranged relative to direction of illumination, and turntable is equal along its circumferencial direction
It is even setting one center wave band be 530nm optical filter, a center wave band be 675nm optical filter, a center wave band be
The optical filter of 870nm and a black patch.
Still more preferably, the filter wheel motor uses step-by-step movement, and every step rotates 90 °, filter wheel electricity
Machine drives four positions locating for turntable, respectively corresponds so that optical filter, the middle cardiac wave that sunlight is 530nm through center wave band
The position of optical filter, the center wave band optical filter for being 870nm and black patch that section is 675nm.
Still more preferably, the temperature control system includes temperature controlling box, and the ccd image sensor is located in temperature controlling box.
Still more preferably, the upper industrial personal computer issues probe command, and horizontal tilt stepper motor drives survey meter
The horizontal initial position in lens barrel front end optical system face due south direction is rotated horizontally, upper industrial personal computer is calculated according to astronomy tracking
Method calculates the rotation of horizontal tilt stepper motor when rotation detection instrument makes lens barrel front end optical system to current solar azimuth
Step number, upper industrial personal computer issue order to lower computer control system, lower computer control system controlled level pitching stepping electricity in real time
Machine drives survey meter rotation, so that lens barrel front end optical system is located on the position of the current solar azimuth of face, sun shadow at this time
As appearing in the field range of ccd image sensor, using image essence tracking mode, sunlight is by four diaphragms, focusing
Lens, turntable, field stop, rear end focus lens group are imaged on the target surface of ccd image sensor；Upper industrial personal computer is to high-precision
It spends the collected sun image of image pick-up card and carries out gray proces, the center of solar facula is determined by image algorithm, with CCD
Whether the pixel difference at the center of imaging sensor judges in setting error range with after the quasi- sun, upper industrial personal computer sends life
It enables to lower computer control system control filter wheel motor rotation to drive turntable to rotate clockwise, every turn complete primary upper
Industrial personal computer is drawn by the center of circle of solar facula center to correspond to field range size as radius in collected sun image visual field
Circle limits the areas imaging of sun image visual field, is acquired and is saved in upper industrial personal computer to the image for drawing circle；Finally,
Gray proces are carried out using sun image of the two-value method to acquisition, mark heliocentric complete circle in conjunction with arc method, it is right
The sun image grayscale information in complete circle should be obtained, and passes through survey meter output voltage information.
Still more preferably, the upper industrial personal computer is with solar facula center in collected sun image visual field
The circle for four different radii sizes that the center of circle is drawn, respectively corresponds 0.6 °, 1.2 °, 2 ° and 5.0 ° four visual fields of survey meter.
The advantages and beneficial effects of the present invention are:
1) survey meter of the invention include upper industrial personal computer, lower computer control system, motor driven systems, temperature control system,
CCD imaging acquisition system；The upper industrial personal computer and lower computer control system two-way communication link, lower computer control system and temperature
Control system two-way communication connection, the input terminal of the output end connection motor driven systems of lower computer control system, motor driven system
The output end of system and temperature control system is all connected with the input terminal of CCD imaging acquisition system；Meanwhile the CCD imaging optical system packet
Include the lens barrel front end optical system and rear end focus lens group set gradually along direction of illumination；The lens barrel front end optical system
Diaphragm, condenser lens including four different pore sizes set gradually along direction of illumination, turntable, field stop；The diaphragm,
Condenser lens, turntable, field stop, rear end focus lens group are coaxially disposed；The filter wheel motor turns for driving
Disk rotation.Survey meter light path design of the invention is simplified relative to traditional cirrus survey meter, by tracking and detection one
Change, detection time is short, and realizes the extract real-time in the case where there is skies gas and improve cirrus to the radiation intensity of different visual fields
Detection accuracy.
Detailed description of the invention
Fig. 1 is the composition frame diagram of survey meter of the invention.
Fig. 2 is the partial structural diagram of survey meter of the invention.
Fig. 3 is the composition schematic diagram of CCD imaging optical system of the invention.
Appended drawing reference:
The upper industrial personal computer of 1-, 2- lower computer control system, 3- motor driven systems, 4- temperature control system, 5-CCD imaging acquisition
System, 31- horizontal tilt stepper motor, 32- filter wheel motor, 51-CCD imaging optical system, 52- Image Acquisition system
System, 521- high precision image capture card, 522-CCD imaging sensor, 511- lens barrel front end optical system, the rear end 512- focus saturating
Microscope group, 501- diaphragm, 502- condenser lens, 503- turntable, 504- field stop.
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.
As shown in Figure 1 and Figure 2, a kind of cirrus survey meter becoming visual field based on image, including upper industrial personal computer 1, slave computer control
System 2 processed, motor driven systems 3, temperature control system 4, CCD imaging acquisition system 5；The upper industrial personal computer 1 is controlled with slave computer
2 two-way communication link of system, lower computer control system 2 and 4 two-way communication link of temperature control system, lower computer control system 2 it is defeated
Outlet connects the input terminal of motor driven systems 3, and motor driven systems 3 are described for driving CCD imaging acquisition system 5 to rotate
Temperature control system 4 is used to provide the temperature environment of setting for CCD imaging acquisition system 5.
The motor driven systems 3 include horizontal tilt stepper motor 31 and filter wheel motor 32, the slave computer
The output end of control system 2 is separately connected the control signal of horizontal tilt stepper motor 31 and filter wheel motor 32；Institute
Horizontal tilt stepper motor 31 is stated for driving CCD imaging acquisition system 5 to rotate.
The CCD imaging acquisition system 5 includes CCD imaging optical system 51 and image capturing system 52, and Image Acquisition
System 52 includes high precision image capture card 521 and ccd image sensor 522；The horizontal tilt stepper motor 31 is used for band
Dynamic CCD imaging optical system 51 and ccd image sensor 522 rotate, and the temperature control system 4 is used to be ccd image sensor 522
The temperature environment of setting, the input of the output end connection high precision image capture card 521 of the ccd image sensor 522 are provided
End.
As shown in figure 3, the CCD imaging optical system 51 includes the lens barrel front-end optical set gradually along direction of illumination
System 511 and rear end focus lens group 512；The lens barrel front end optical system 511 includes setting gradually along direction of illumination
The diaphragm 501 of four different pore sizes, condenser lens 502, turntable 503, field stop 504；The diaphragm 501, condenser lens
502, turntable 503, field stop 504, rear end focus lens group 512 are coaxially disposed；The filter wheel motor 32 is used for
Turntable 503 is driven to rotate.
The aperture of four diaphragms 501 is sequentially reduced setting along direction of illumination；The field stop 504, which is located at, to be focused
On the focal plane of lens 502；The ccd image sensor 522 is located on the focal plane of rear end focus lens group 512.
The turntable 503 is vertically arranged relative to direction of illumination, and turntable 503 is uniformly arranged one along its circumferencial direction
The optical filtering that optical filter that optical filter that center wave band is 530nm, a center wave band are 675nm, a center wave band are 870nm
Piece and a black patch；It has measured and has once only needed 10s.
The filter wheel motor 32 uses step-by-step movement, and every step rotates 90 °, and filter wheel motor 32 drives turntable
Four positions locating for 503 respectively correspond so that sunlight runs through the optical filter that center wave band is 530nm, center wave band is
The position of the optical filter of 675nm, the optical filter that center wave band is 870nm and black patch.
The temperature control system 4 includes temperature controlling box 41, and the ccd image sensor 522 is located in temperature controlling box 41.
Specifically, keeping ccd image sensor 522 high under preference temperature by the temperature of control temperature controlling box 41
Performance, the work of low noise.
The upper industrial personal computer 1 issues probe command, and horizontal tilt stepper motor 31 drives survey meter to rotate horizontally to mirror
The horizontal initial position in 511 face due south direction of cylinder front end optical system, upper industrial personal computer 1 are calculated according to astronomical track algorithm
The rotation step of horizontal tilt stepper motor 31 when rotation detection instrument makes lens barrel front end optical system 511 arrive current solar azimuth
Number, upper industrial personal computer 1 issue order to lower computer control system 2,2 controlled level pitching stepping electricity of lower computer control system in real time
Machine 31 drives survey meter rotation, so that lens barrel front end optical system 511 is located on the position of the current solar azimuth of face, at this time too
Positive image appears in the field range of ccd image sensor 522, and using image essence tracking mode, sunlight passes through four light
Door screen 501, condenser lens 502, turntable 503, field stop 504, rear end focus lens group 512 are imaged on ccd image sensor 522
Target surface on；Upper industrial personal computer 1 carries out gray proces to the collected sun image of high precision image capture card 521, passes through figure
As algorithm determines the center of solar facula, whether the pixel difference with the center of ccd image sensor 522 is in setting error range
It is interior, judge with after the quasi- sun, upper industrial personal computer 1 sends commands to lower computer control system 2 and controls 32 turns of filter wheel motor
It is dynamic to drive turntable 503 to rotate clockwise, every turn of complete primary upper industrial personal computer 1 in collected sun image visual field, with
Solar facula center is that the center of circle is justified using corresponding to field range size and drawing as radius, limits the areas imaging of sun image visual field, right
The image for drawing circle is acquired and is saved in upper industrial personal computer 1；Finally, carrying out ash using sun image of the two-value method to acquisition
Degree processing marks heliocentric complete circle in conjunction with arc method, and correspondence obtains the sun image grayscale information in complete circle,
And pass through survey meter output voltage information.
The upper industrial personal computer 1 in collected sun image visual field using solar facula center as the center of circle draw four not
With the circle of radius size, 0.6 °, 1.2 °, 2 ° and 5.0 ° four visual fields of survey meter are respectively corresponded.
Survey meter of the invention at work, calculates the gray value of image in different visual field circles, to be corresponded to rapidly
The radiation intensity information of different visual fields.
Based on the optical characteristics of survey meter quick detection aerosol and cirrus of the invention, by comparing different small angular fields
Under scattering ratio, the image for 0.6 °, 1.2 °, 2 °, 5 ° visual field is collected by ccd image sensor 522, extracts it
The transmitted radiation intensity of different visual fields, the field angle size in view of the sun are about 0.532 °, utilize the transmitted radiation energy of 5 ° of visual fields
Measure F5°, 2 ° of visual fields transmitted radiation energy F2°, 1.2 ° of visual fields transmitted radiation energy F1.2°It is regarded before being individually subtracted to 0.6 ° small angle
Transmitted radiation energy F in0.6°Afterwards, the two carries out ratio, obtains scattering ratio R1、R2It is as follows:
The scattering ratio of the different visual fields of the same band is obtained, in conjunction with radiation transmission the software such as DISORT or illiteracy of profession
Special Caro software simulation calculates under different effective scales and optical thickness parameter, particulate, water cloud, cirrus day gas bar
The scattering ratio at the different small angles of part ventrocephalad, according to tables of data is searched, to distinguish cirrus and particulate.
Within the scope of 5 ° of forward direction, the Small angle forward scattering of particulate is distributed for compared with cirrus, and variation is very
Slowly, and cirrus is mainly made of large ice crystals particle, and forward direction small-angle scattering is very strong, by scattering ratio under different visual fields
Data separation goes out cirrus and particulate, studies atmospheric medium scattered information under different visual fields, is extracted by scattering ratio big
The optical thickness of gas medium and the dimensional information of particle.Scattering ratio of the aerosol under different visual fields, which is typically larger than, thin cirrus
The case where, in the case where there is skies gas, by using the method for astronomical tracking and the tracking of ccd image essence, real-time tracking target.
In conclusion the present invention provides a kind of cirrus survey meter for becoming visual field based on image, light path design is simple, visits
It is short to survey the time, while improving the detection accuracy of cirrus.
Claims (10)
1. a kind of cirrus survey meter for becoming visual field based on image, it is characterised in that: controlled including upper industrial personal computer (1), slave computer
System (2), motor driven systems (3), temperature control system (4), CCD imaging acquisition system (5)；The upper industrial personal computer (1) is under
Position machine control system (2) two-way communication link, lower computer control system (2) and temperature control system (4) two-way communication link, slave computer
The input terminal of output end connection motor driven systems (3) of control system (2), motor driven systems (3) are for driving CCD to be imaged
Acquisition system (5) rotation, the temperature control system (4) are used to provide the temperature environment of setting for CCD imaging acquisition system (5).
2. a kind of cirrus survey meter for becoming visual field based on image according to claim 1, it is characterised in that: the motor drives
Dynamic system (3) include horizontal tilt stepper motor (31) and filter wheel motor (32), the lower computer control system (2)
Output end is separately connected the control signal of horizontal tilt stepper motor (31) and filter wheel motor (32)；The level is bowed
Stepper motor (31) are faced upward for driving CCD imaging acquisition system (5) to rotate.
3. it is according to claim 2 it is a kind of based on image become visual field cirrus survey meter, it is characterised in that: the CCD at
Picture acquisition system (5) includes CCD imaging optical system (51) and image capturing system (52), and image capturing system (52) includes
High precision image capture card (521) and ccd image sensor (522)；The horizontal tilt stepper motor (31) is for driving CCD
Imaging optical system (51) and ccd image sensor (522) rotation, the temperature control system (4) are used to be ccd image sensor
(522) temperature environment of setting is provided, the output end of the ccd image sensor (522) connects high precision image capture card
(521) input terminal.
4. it is according to claim 3 it is a kind of based on image become visual field cirrus survey meter, it is characterised in that: the CCD at
As optical system (51) include the lens barrel front end optical system (511) and rear end focus lens group set gradually along direction of illumination
(512)；The lens barrel front end optical system (511) includes the diaphragm of four different pore sizes set gradually along direction of illumination
(501), condenser lens (502), turntable (503), field stop (504)；The diaphragm (501), condenser lens (502), turntable
(503), field stop (504), rear end focus lens group (512) are coaxially disposed；The filter wheel motor (32) is used for
Drive turntable (503) rotation.
5. a kind of cirrus survey meter for becoming visual field based on image according to claim 4, it is characterised in that: four light
The aperture of late (501) is sequentially reduced setting along direction of illumination；The field stop (504) is located at the coke of condenser lens (502)
In plane；The ccd image sensor (522) is located on the focal plane of rear end focus lens group (512).
6. a kind of cirrus survey meter for becoming visual field based on image according to claim 5, it is characterised in that: the turntable
(503) it is vertically arranged relative to direction of illumination, and turntable (503) is uniformly arranged a center wave band along its circumferencial direction and is
Optical filter that optical filter that the optical filter of 530nm, a center wave band are 675nm, a center wave band are 870nm and one it is black
Color chips.
7. a kind of cirrus survey meter for becoming visual field based on image according to claim 6, it is characterised in that: the optical filter
Rotary tray motor (32) uses step-by-step movement, and every step rotates 90 °, and filter wheel motor (32) drives locating for turntable (503) four
Position, respectively correspond so that sunlight through center wave band be 530nm optical filter, center wave band be 675nm optical filter, in
Cardiac wave section is the optical filter of 870nm and the position of black patch.
8. a kind of cirrus survey meter for becoming visual field based on image according to claim 7, it is characterised in that: the temperature control system
System (4) includes temperature controlling box (41), and the ccd image sensor (522) is located in temperature controlling box (41).
9. a kind of cirrus survey meter for becoming visual field based on image according to claim 8, it is characterised in that: the upper work
Control machine (1) issues probe command, and horizontal tilt stepper motor (31) drives survey meter to rotate horizontally to lens barrel front end optical system
(511) horizontal initial position in face due south direction, upper industrial personal computer (1) calculate rotation detection instrument according to astronomical track algorithm
So that lens barrel front end optical system (511) arrive current solar azimuth when horizontal tilt stepper motor (31) rotation step number, it is upper
Industrial personal computer (1) is issued order in real time and is given lower computer control system (2), lower computer control system (2) controlled level pitching stepping electricity
Machine (31) drives survey meter rotation, so that lens barrel front end optical system (511) is located on the position of the current solar azimuth of face, this
When solar image appear in the field range of ccd image sensor (522), using image essence tracking mode, sunlight passes through
Four diaphragms (501), condenser lens (502), turntable (503), field stop (504), rear end focus lens group (512) are imaged on
On the target surface of ccd image sensor (522)；Upper industrial personal computer (1) is to high precision image capture card (521) collected solar atlas
As carrying out gray proces, the center of solar facula is determined by image algorithm, the picture with the center of ccd image sensor (522)
Whether plain difference judges in setting error range with after the quasi- sun, upper industrial personal computer (1) sends commands to lower computer control system
(2) control filter wheel motor (32) rotation is to drive turntable (503) to rotate clockwise, every turn of complete primary upper industrial personal computer
(1) in collected sun image visual field, circle is drawn as radius by the center of circle of solar facula center to correspond to field range size,
The areas imaging for limiting sun image visual field is acquired the image for drawing circle and is saved in upper industrial personal computer (1)；Finally,
Gray proces are carried out using sun image of the two-value method to acquisition, mark heliocentric complete circle in conjunction with arc method, it is right
The sun image grayscale information in complete circle should be obtained, and passes through survey meter output voltage information.
10. a kind of cirrus survey meter for becoming visual field based on image according to claim 9, it is characterised in that: described upper
Industrial personal computer (1) is in collected sun image visual field using solar facula center as four different radii sizes in the center of circle stroke
Circle, respectively corresponds 0.6 °, 1.2 °, 2 ° and 5.0 ° four visual fields of survey meter.
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| CN201811294596.5A CN109540843A (en) | 2018-11-01 | 2018-11-01 | A kind of cirrus survey meter becoming visual field based on image |
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| CN201811294596.5A CN109540843A (en) | 2018-11-01 | 2018-11-01 | A kind of cirrus survey meter becoming visual field based on image |
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Application publication date: 20190329 |
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