CN104614070B - The light resources monitoring method of a kind of multispectral survey and system - Google Patents
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Abstract
The invention discloses light resources monitoring method and the system of a kind of multispectral survey, including: utilize multiple passage to realize the measurement of solar radiation amount irradiance in multiple spectral regions；Measurement data based on solar radiation amount irradiance in multiple spectral regions, mode that optical filter combines with silicon photodiode detector realizes the monitoring of multispectral light resources to utilize the INGaAS PIN photoelectric detector in broadband to add.The light resources monitoring method of multispectral survey of the present invention and system, can overcome in prior art that device category is few, the scope of application is little and the defect such as certainty of measurement is low, to realize the advantage that device category is many, the scope of application is big and certainty of measurement is high.
Description
Technical field
The present invention relates to sunlight monitoring resource technical field, in particular it relates to the light resources prison of a kind of multispectral survey
Survey method and system.
Background technology
In order to preferably develop solar energy resources, need large-sized solar resources development and utilization project is carried out weather
Feasibility study, when designing solar cell application systems, it is necessary to grasps the solar radiant energy arriving this area, i.e. grasps this ground
The year of district's solar radiation, moon total amount.Surface solar radiation includes directly radiating and scattering radiation.Solar radiation passes earth atmosphere
During layer, not only scattering by the air molecule in atmosphere, steam and dust, and can be by oxygen, ozone, water and two in air
The absorption of carbonoxide, the intensity of solar radiation reaching ground through air significantly decays.Efficiently turn in solar energy power generating
When changing research and solar photovoltaic generation system design analysis, need to use this important parameter of solar radiation.Solar radiation quantity
Measurement and assessment directly affect the addressing of photo-voltaic power generation station and build up the calculating of rear actual power efficiency, therefore to solar radiation
The monitoring of amount is significant.
The most traditional monitoring technology is mainly used in meteorological department, the most only measures solar radiation quantity.For electricity power
Field, for assessing solar energy resources, or directly utilizes the Monitoring Data that meteorological field provides, or utilizes meteorological field too
Sun radiation detecting apparatus carries out actual ground observation.
And it practice, the frequency range difference covered due to dissimilar solaode, difficult just with single monitoring parameter
Effectively to assess light resources.Domestic single for solar radiation measurement product for overcoming, different product spectral coverage has
Limit, the shortcoming that certainty of measurement is the highest, it is necessary the angle from utilization of energy Yu exploitation, the monitoring method of research specialty completely
And equipment.
During realizing the present invention, inventor finds at least to exist in prior art that device category is few, the scope of application
The defects such as little and certainty of measurement is low.
Summary of the invention
It is an object of the invention to, for the problems referred to above, propose the light resources monitoring method of a kind of multispectral survey, with reality
The existing advantage that device category is many, the scope of application is big and certainty of measurement is high.
The second object of the present invention is, proposes the light resources monitoring system of a kind of multispectral survey.
For achieving the above object, the technical solution used in the present invention is: the light resources monitoring method of a kind of multispectral survey,
Including:
A, multiple passage is utilized to realize the measurement of solar radiation amount irradiance in multiple spectral regions；
B, measurement data based on solar radiation amount irradiance in multiple spectral regions, utilize the INGaAS in broadband
PIN photoelectric detector adds the mode that optical filter combines with silicon photodiode detector and realizes the monitoring of multispectral light resources.
Further, in step a, the plurality of passage, at most up to 10 passages, wherein 6 passages are silicon photoelectricity
Diode detector detection channels, 2 passages are INGaAs PIN photoelectric detector detection channels, 1 passage be sunlight from
Dynamic calibrated channel, also a passage is artificial calibrated channel, and the light path of 10 passages is parallel；
And/or,
In stepb, broadband INGaAS PIN photoelectric detector adds the spectral region that optical filter is measured, including near infrared light
Spectrum.
Further, described step a, specifically include:
The method used of measuring utilizing broadband InGaAs PIN photoelectric detector to carry out irradiance is normalization average light
Strong method, first, is converted to photoelectric current through InGaAs PIN photoelectric detector, then the solar radiation amount received
InGaAs PIN photoelectric detector connects mutual conductance amplifying circuit, and photo-signal is converted into voltage signal, the most again through certainly
Dynamic gain amplifying circuit and root-mean-square circuit, the normalized average intensity of final output.
Utilize that silicon photodiode detector detects is the solar radiation amount on some Frequency point concrete, and utilizes
InGaAs PIN photoelectric detector detection in broadband is the meansigma methods of solar radiation amount in a certain frequency range.
Based on broadband InGaAs PIN photoelectric detector and the measuring principle utilizing broadband InGaAs PIN photoelectric detector
Can be expressed as:
According to Lanbert-Beer law, from Lanbert-Beer law, direct sunlight is through Atmospheric attenuation
After reach ground, the radiant intensity of a certain frequency recorded on the ground can be represented by following equation:
In formula (1), I0,λFor the intensity of solar radiation on atmosphere top, τλ,iBe i-th kind absorb or scattering particles in an atmosphere
Optical thickness, miIt is i-th kind to absorb or scattering particles optical quality in an atmosphere；R is standardization solar distance, and it uses
Astronomical unit AU, astronomical unit AU represent the sun on the same day and are exactly equal to average solar distance to the distance of the earth.
Further, described standardization solar distance R, it is possible to obtained by formula below approximation:
In formula (2), d is the sun distance to the earth on the same day, dmIt is average solar distance, during 1≤j≤365 represent 1 year
Jth sky；
For the air in reality, the Σ τ in formula (2)λ,imiCan be obtained by equation below approximation:
In formula (3), τaRepresent aerocolloidal optical thickness, maRepresent aerocolloidal optical quality, τairIt it is atmospheric molecule
Optical thickness, mairRepresent the optical thickness of atmospheric molecule, τ03For the optical thickness of ozone, m03Optical quality for ozone.
Further, described step b, specifically include:
Intensity of solar radiation I that the voltage V using testing circuit, i.e. testing circuit to produce detects to it is directly proportional, will just
Ratio relation substitutes into formula (1), it is possible to obtain voltage to be measured:
In formula (4), V 'λIt is the voltage produced during system reception solar radiation, V0,λCalibration for system correspondence λ wave band is normal
Number, it represents optical quality in the case of average solar distance i.e. R is equal to 1 is extrapolation voltage when zero.
Meanwhile, what the present invention used another solution is that the light resources monitoring system of a kind of multispectral survey, including depending on
The optical module of secondary connection, electronics module, fpga core processor and be embedded in described fpga core processor soft
Part module.
Further, described optical module, have narrow including arranging parallel and being respectively connecting to electronics module multiple
With the monitoring passage of filter plate, optical lens and detector, and the calibration automatically being respectively connecting to described electronics module is logical
Road and manual calibration passage.
Further, each monitoring passage with narrow band filter slice, optical lens and detector, including be equipped with
INGaAs PIN photoelectric detector detection light path, silicon photodiode detector detection light path, the automatic calibrated channel of sunlight；
Described INGaAs PIN photoelectric detector detection light path, silicon photodiode detector detect light path, sunlight
Automatically calibrated channel light path is parallel, INGaAs PIN photoelectric detector detection light path and silicon photodiode detector detection light path
Working, the automatic calibrated channel of sunlight, after calibration completes, opens INGaAs PIN photoelectric detector detection light path and silicon simultaneously
Photodiode detector detection light path realizes the measurement of solar radiation amount.
Described INGaAs PIN photoelectric detector detection light path, fixes cylinder including optics, and fixes cylinder from described optics
One end to optics fix the other end of cylinder be successively set on quartz window that optics fixes on cylinder, diaphragm, optical filter, lens and
INGaAs PIN photoelectric detector；
Described quartz window, diaphragm, lens and INGaAs PIN photoelectric detector are positioned at optics and fix cylinder, and sunlight is first
It is irradiated on quartz window, passes sequentially through diaphragm, optical filter and lens, finally focus in INGaAs PIN photoelectric detector, its
In lens be Fresnel lens；
The detection light path of described silicon photodiode detector, including the silicon photoelectric diode passage stone being equipped with successively
English window, silicon photoelectric diode channel optical fix cylinder, silicon photoelectric diode passage diaphragm and silicon photoelectric diode.
Further, described electronics module, including having narrow band filter slice, optical lens and spy with the plurality of respectively
Multiple signal conditioning circuits that the monitoring passage of survey device and automatic calibrated channel connect one to one, are connected to described manual calibration
Control module between passage and fpga core processor, respectively with the plurality of signal conditioning circuit and fpga core processor
The analog-digital converter connected, and the memorizer that is connected with described fpga core processor respectively and GPS module；
And/or,
Described software module, solves including the many reference amounts arranged parallel and be connected with described fpga core processor respectively
Module, LCD display module and multispectral computing module.
Further, each signal conditioning circuit, including the preamplifier being equipped with successively, wave filter, two grades put
Big device and Acquisition Circuit.
The light resources monitoring method of the multispectral survey of various embodiments of the present invention and system, owing to including: utilize multiple logical
Road realizes the measurement of solar radiation amount irradiance in multiple spectral regions；Based on solar radiation amount at multiple spectrum models
Enclose the measurement data of interior irradiance, utilize the INGaAS PIN photoelectric detector in broadband to add optical filter and visit with silicon photoelectric diode
The mode that survey device combines realizes the monitoring of multispectral light resources；Can be by the solar radiation being irradiated on photoelectric sensor
Amount obtains amount of radiation or the radiant intensity of any time sunlight；Such that it is able to overcome device category in prior art few, suitable
Little by scope and that certainty of measurement is low defect, to realize the advantage that device category is many, the scope of application is big and certainty of measurement is high.
Other features and advantages of the present invention will illustrate in the following description, and, partly become from description
Obtain it is clear that or understand by implementing the present invention.
Below by drawings and Examples, technical scheme is described in further detail.
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, with the reality of the present invention
Execute example together for explaining the present invention, be not intended that limitation of the present invention.In the accompanying drawings:
Fig. 1 is multispectral light resources monitoring system architecture diagram in the present invention；
Fig. 2 is INGaAs PIN photoelectric detector detection channels optical structure chart in the present invention；
Fig. 3 be silicon photodiode detector detection channels optical structure chart in the present invention '
Automatic gain amplifying circuit when Fig. 4 is to utilize INGaAs PIN photoelectric detector
In conjunction with accompanying drawing, in the embodiment of the present invention, reference is as follows:
1-quartz window；2-diaphragm；3-optical filter；4-Fresnel lens；5-optics fixes cylinder；6-INGaAs PIN light electrical resistivity survey
Survey device；7-silicon photoelectric diode passage quartz window；8-silicon photoelectric diode passage diaphragm；9-silicon photoelectric diode channel optical is solid
Safety barrel；10-silicon photoelectric diode.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that preferred reality described herein
Execute example be merely to illustrate and explain the present invention, be not intended to limit the present invention.
In order to overcome the deficiencies in the prior art, according to embodiments of the present invention, as shown in Figure 1-Figure 3, it is provided that one how light
The light resources monitoring method of spectrometry and system, particularly to the light resources monitoring of solar energy power generating field light resources assessment
Field.
Technical scheme, the light resources monitoring of the multispectral survey of proposition is primarily directed to the light money spoke of sunlight
Penetrating the monitoring of intensity, light resources monitoring method based on multispectral survey is the sunlight spoke by being irradiated on photoelectric sensor
The amount of penetrating obtains amount of radiation or the radiant intensity of any time sunlight.
In the inventive solutions, as it is shown in figure 1, the light resources monitoring system of multispectral survey includes optical mode
Block, electronics module and software module.The core devices of optical module is sensor, and sensor is photoelectric detector.
In the inventive solutions, the light resources monitoring method of a kind of multispectral survey, utilize multiple passage to realize
The measurement of solar radiation amount irradiance in multiple spectral regions, utilizes the INGaAS PIN photoelectric detector in broadband to add filter
The mode that mating plate combines with silicon photodiode detector realizes the monitoring of multispectral light resources, at most up to 10 passages,
Wherein 6 passages are silicon photodiode detector detection channels, and 2 passages are that the detection of INGaAs PIN photoelectric detector is logical
Road, 1 passage is the automatic calibrated channel of sunlight, and also a passage is artificial calibrated channel, and the light path of 10 passages is parallel.
In the inventive solutions, INGaAS PIN photoelectric detector in broadband adds the spectral region master that optical filter is measured
If near infrared spectrum.As in figure 2 it is shown, optical module mainly includes that INGaAs PIN photoelectric detector detects light path, silicon photoelectricity
Diode detector detection light path, the automatic calibrated channel of sunlight, INGaAs PIN photoelectric detector detection light path mainly includes
Optics fix cylinder (as optics fixes cylinder 5), quartz window (such as quartz window 1), diaphragm (such as diaphragm 2), optical filter (such as optical filter 3),
Lens (such as Fresnel lens 4) and INGaAs PIN photoelectric detector (such as INGaAs PIN photoelectric detector 6), quartz window, light
Door screen, lens and INGaAs PIN photoelectric detector are positioned at optics and fix cylinder, and first sunlight is irradiated on quartz window, leads to successively
Crossing diaphragm, optical filter and lens, finally focus in INGaAs PIN photoelectric detector, lens therein are Fresnel lens.
As it is shown on figure 3, the detection light path of silicon photodiode detector includes that silicon photoelectric diode passage quartz window is (such as silicon
Photodiode passage quartz window 7), silicon photoelectric diode channel optical fix cylinder (as silicon photoelectric diode channel optical is fixed
Cylinder 9), silicon photoelectric diode passage diaphragm (such as silicon photoelectric diode passage diaphragm 8) and silicon photoelectric diode be (such as silicon photoelectricity two pole
Pipe 10), the wave-length coverage that wherein silicon photodiode detector selects is 340nm (visible ray), 405nm (visible ray), 500nm
(visible ray), 650nm (visible ray), 880nm (infrared), 1020nm (infrared) band detection passage.
The method used of measuring utilizing broadband InGaAs PIN photoelectric detector to carry out irradiance is normalization average light
Strong method, first, is converted to photoelectric current through InGaAs PIN photoelectric detector, then the solar radiation amount received
InGaAs PIN photoelectric detector connects mutual conductance amplifying circuit, and photo-signal is converted into voltage signal, the most again through certainly
Dynamic gain amplifying circuit and root-mean-square circuit, the normalized average intensity of final output.
Utilize that silicon photodiode detector detects is the solar radiation amount on some Frequency point concrete, and utilizes
InGaAs PIN photoelectric detector detection in broadband is the meansigma methods of solar radiation amount in a certain frequency range.
Based on broadband InGaAs PIN photoelectric detector and the measuring principle utilizing broadband InGaAs PIN photoelectric detector
Can be expressed as:
The multispectral light resources monitoring technology that the present invention proposes, it is fixed that its fundamental surveillance principle is based on Lanbert-Beer
Rule, from Lanbert-Beer law, direct sunlight reaches ground, certain recorded on the ground after Atmospheric attenuation
The radiant intensity of one frequency can be represented by following equation:
In formula (1), I0,λFor the intensity of solar radiation on atmosphere top, τλ,iBe i-th kind absorb or scattering particles in an atmosphere
Optical thickness, miIt is i-th kind to absorb or scattering particles optical quality in an atmosphere；R is standardization solar distance, and it uses
Astronomical unit (AU), astronomical unit AU represents the sun on the same day and is exactly equal to average solar distance to the distance of the earth.Mark
Standardization solar distance R can be obtained by formula below approximation:
In formula (2), d is the sun distance to the earth on the same day, dmIt is average solar distance, during 1≤j≤365 represent 1 year
Jth sky.For the air in reality, the Σ τ in formula (2)λ,imiCan be obtained by equation below approximation:
In formula (3), τaRepresent aerocolloidal optical thickness, maRepresent aerocolloidal optical quality, τairIt it is atmospheric molecule
Optical thickness, mairRepresent the optical thickness of atmospheric molecule, τ03For the optical thickness of ozone, m03Optical quality for ozone.
Light resources based on the multispectral survey monitoring system testing circuit that technical scheme proposes is linear,
Intensity of solar radiation I that the voltage V that i.e. system produces detects to it is directly proportional, and proportional relation substitutes into formula (1), can obtain system
The measurement voltage of system
In formula (4), V 'λIt is the voltage produced during system reception solar radiation, V0,λCalibration for system correspondence λ wave band is normal
Number, it represents optical quality in the case of average solar distance (R is equal to 1) is extrapolation voltage when zero.
Technical scheme, is primarily directed to the monitoring of the light money radiant intensity of sunlight, with traditional sun spoke
The measuring method penetrated is compared, and technical scheme possesses following advantage:
(1) the detector that technical scheme uses is photoelectric type radiation sensor；
(2) photoelectric type radiation sensor response time is short, it is possible to achieve monitor in real time；
(3) the spectral response of photoelectric type radiation sensor is very big, for different solar cell material light with wavelength change
Spectrum response difference, can find the photoelectric device of spectral response corresponding to different wavelength range very easily；
(4) different effective spectral ranges corresponding to solar cell material are different, even if so at identical solar irradiation
Under degree, produced electricity is the most different, and therefore photoelectric type radiation sensor can realize for different photovoltaic cell materials, light splitting
Spectrometry light radiation, with strong points, the precision of measurement is high；
(5) photoelectric type radiation sensor can combine with optical filter simultaneously, it is achieved the solar radiation of fine spectral region
The measurement of amount；
(6) photoelectric type radiation sensor low price, it is adaptable to produce in enormous quantities, and easily realize modularity.
Finally it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention,
Although being described in detail the present invention with reference to previous embodiment, for a person skilled in the art, it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent.
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (7)
1. the light resources monitoring method of a multispectral survey, it is characterised in that including:
A, multiple passage is utilized to realize the measurement of solar radiation amount irradiance in multiple spectral regions；
B, measurement data based on solar radiation amount irradiance in multiple spectral regions, utilize the INGaAS PIN in broadband
Photodetector adds the mode that optical filter combines with silicon photodiode detector and realizes the monitoring of multispectral light resources, described
Multiple passages, comprise 10 passages altogether, and wherein 6 passages are silicon photodiode detector detection channels, and 2 passages are
INGaAs PIN photoelectric detector detection channels, 1 passage is the automatic calibrated channel of sunlight, and also a passage is artificial school
Quasi-passage, the light path of 10 passages is parallel；
And/or,
In stepb, broadband INGaAS PIN photoelectric detector adds the spectral region that optical filter is measured, including near infrared spectrum,
The method used of measuring utilizing broadband InGaAs PIN photoelectric detector to carry out irradiance is normalization average intensity
Method, first, is converted to photoelectric current through InGaAs PIN photoelectric detector, then the solar radiation amount received
InGaAs PIN photoelectric detector connects mutual conductance amplifying circuit, and photo-signal is converted into voltage signal, the most again through certainly
Dynamic gain amplifying circuit and root-mean-square circuit, the normalized average intensity of final output；
Utilize that silicon photodiode detector detects is the solar radiation amount on some Frequency point concrete, and utilizes broadband
The detection of InGaAs PIN photoelectric detector is the meansigma methods of solar radiation amount in a certain frequency range.
The light resources monitoring method of multispectral survey the most according to claim 1, it is characterised in that described step a, specifically
Including:
According to Lanbert-Beer law, from Lanbert-Beer law, direct sunlight reaches after Atmospheric attenuation
To ground, the radiant intensity of a certain frequency recorded on the ground can be represented by following equation:
In formula (1), I0,λFor the intensity of solar radiation on atmosphere top, τλ,iIt is i-th kind to absorb or scattering particles light in an atmosphere
Learn thickness, miIt is i-th kind to absorb or scattering particles optical quality in an atmosphere；R is standardization solar distance, and it uses astronomy
Unit AU, astronomical unit AU represents the sun on the same day and is exactly equal to average solar distance to the distance of the earth.
The light resources monitoring method of multispectral survey the most according to claim 2, it is characterised in that described standardization day
Distance R, it is possible to obtained by formula below approximation:
In formula (2), d is the sun distance to the earth on the same day, dmBeing average solar distance, 1≤j≤365 represent the jth in a year
My god；
For the air in reality, the ∑ τ in formula (2)λ,imiCan be obtained by equation below approximation:
∑τλ,imi=τama+τairmair+τ03m03(3)；
In formula (3), τaRepresent aerocolloidal optical thickness, maRepresent aerocolloidal optical quality, τairIt is the optics of atmospheric molecule
Thickness, mairRepresent the optical thickness of atmospheric molecule, τ03For the optical thickness of ozone, m03Optical quality for ozone.
The light resources monitoring method of multispectral survey the most according to claim 2, it is characterised in that described step b, specifically
Including:
Intensity of solar radiation I that the voltage V using testing circuit, i.e. testing circuit to produce detects to it is directly proportional, and is closed by direct ratio
System substitutes into formula (1), it is possible to obtain voltage to be measured:
In formula (4), V 'λIt is the voltage produced during system reception solar radiation, V0,λFor the scaling constant of system correspondence λ wave band, it
Representing optical quality in the case of average solar distance i.e. R is equal to 1 is extrapolation voltage when zero.
5. the light resources monitoring system of a multispectral survey, it is characterised in that include optical module, the electronics being sequentially connected with
Module, fpga core processor and be embedded in the software module in described fpga core processor, described optical module, bag
Include the parallel multiple monitorings with narrow band filter slice, optical lens and detector arranged and be respectively connecting to electronics module
Passage, and it is respectively connecting to automatic calibrated channel and the manual calibration passage of described electronics module, each have arrowband filter
The monitoring passage of wave plate, optical lens and detector, including the INGaAs PIN photoelectric detector detection light path, the silicon that are equipped with
Photodiode detector detection light path, the automatic calibrated channel of sunlight；
Described INGaAs PIN photoelectric detector detects light path, silicon photodiode detector detects light path, sunlight is automatic
Calibrated channel light path is parallel, and INGaAs PIN photoelectric detector detection light path and silicon photodiode detector detection light path are simultaneously
Work, the automatic calibrated channel of sunlight, after calibration completes, opens INGaAs PIN photoelectric detector detection light path and silicon photoelectricity
Diode detector detection light path realizes the measurement of solar radiation amount,
Described INGaAs PIN photoelectric detector detection light path, fixes cylinder including optics, and fixes the one of cylinder from described optics
End to optics is fixed the other end of cylinder and is successively set on quartz window, diaphragm, optical filter, lens and the INGaAs that optics is fixed on cylinder
PIN photoelectric detector；
Described quartz window, diaphragm, lens and INGaAs PIN photoelectric detector are positioned at optics and fix cylinder, and first sunlight irradiates
On quartz window, pass sequentially through diaphragm, optical filter and lens, finally focus in INGaAs PIN photoelectric detector, therein
Lens are Fresnel lens；
The detection light path of described silicon photodiode detector, including the silicon photoelectric diode passage quartz being equipped with successively
Window, silicon photoelectric diode channel optical fix cylinder, silicon photoelectric diode passage diaphragm and silicon photoelectric diode.
The light resources monitoring system of multispectral survey the most according to claim 5, it is characterised in that described electronics mould
Block, including respectively with the plurality of monitoring passage with narrow band filter slice, optical lens and detector and automatic calibrated channel
The multiple signal conditioning circuits connected one to one, are connected to the control between described manual calibration passage and fpga core processor
Molding block, the analog-digital converter being connected with the plurality of signal conditioning circuit and fpga core processor respectively, and respectively with
The memorizer of described fpga core processor connection and GPS module；
And/or,
Described software module, including the many reference amounts arranged parallel and be connected with described fpga core processor respectively solve module,
LCD display module and multispectral computing module.
The light resources monitoring system of multispectral survey the most according to claim 6, it is characterised in that each signal condition electricity
Road, including the preamplifier being equipped with successively, wave filter, two-stage amplifier and Acquisition Circuit.
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