CN108827882A - Water quality parameter spectroscopic analysis system - Google Patents
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- CN108827882A CN108827882A CN201810204652.5A CN201810204652A CN108827882A CN 108827882 A CN108827882 A CN 108827882A CN 201810204652 A CN201810204652 A CN 201810204652A CN 108827882 A CN108827882 A CN 108827882A
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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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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- 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
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Abstract
The present invention provides a kind of water quality parameter spectroscopic analysis system, including spectra collection device and analytical equipment；The spectra collection device is used for beam emissions to tested water body, and the optical signal based on the light beam and the signal that diffuses, and obtains water quality parameter spectroscopic data, and the water quality parameter spectroscopic data is sent to the analytical equipment；The analytical equipment, for obtaining the water quality parameter Spectroscopic analysis results by inverse model according to the water quality parameter spectroscopic data.A kind of water quality parameter spectroscopic analysis system provided by the invention can make full use of the advantage of hyperion detection technique by setting spectra collection device and analytical equipment, and save the cost realizes the simple, fast and efficient monitoring to water quality.The present invention can make full use of the advantage of spectrum detection technique, saves equipment cost, uses manpower and material resources sparingly, and shortens time-consuming, has the widely applied potentiality that put goods on the market.
Description
Technical field
The present invention relates to field of water quality detection, more particularly, to a kind of water quality parameter spectroscopic analysis system.
Background technique
China is the numerous country in lake river, and natural lake of the area more than 1.0 sq-kms shares 2693, point
For cloth in 28 provinces (autonomous region, municipality directly under the Central Government), the gross area reaches 81414.6 sq-kms, accounts for about the 0.9% of national national territorial area.
In addition to natural lake river, there are many more artificial lake and canals, they collectively form Inland Water abundant, these internal waters
Body has water of regulating and storing, regulates the climate, irrigates, cultivating, shipping, tourism, extracting the multiple functions such as industrial chemicals and power generation.Inland
Water body is also fresh water retention reservoir, provides domestic water for the city dweller around lake, the water quality in these lakes and the life of people
Work is closely bound up, thus keeps the health of Inland Water water quality particularly significant.
However as economic development, Inland Water water quality health status is simultaneously pessimistic, many lake waters eutrophication journeys
Degree is serious, therefore it is particularly significant that water quality monitoring work is unfolded.Conventional water quality monitoring need of work collection in worksite water sample, and it is existing
Water quality detection pertinent instruments the disadvantage is that its volume and weight is all unable to satisfy the requirement of daily carrying, it is difficult to realize single behaviour
Make, in addition the water sample analysis of later experiments room, makes aquatic monitoring expend a large amount of manpower and material resources.High spectrum resolution remote sensing technique can make up
The deficiency of these complicated and time-consuming traditional detection methods.
Therefore, how to realize that the monitoring simple, quickly and efficiently of water quality be critical issue urgently to be resolved at present.
Summary of the invention
The present invention provides a kind of a kind of water quality parameter spectroscopic analysis system for overcoming the above problem.
According to an aspect of the present invention, a kind of water quality parameter spectroscopic analysis system is provided, including spectra collection device and
Analytical equipment；The spectra collection device, for by beam emissions to tested water body, and the optical signal based on the light beam and overflow
Reflected light signal obtains water quality parameter spectroscopic data, and the water quality parameter spectroscopic data is sent to the analytical equipment；Institute
Analytical equipment is stated, for obtaining the water quality parameter spectrum analysis by inverse model according to the water quality parameter spectroscopic data
As a result.
A kind of water quality parameter spectroscopic analysis system provided by the invention, by the way that spectra collection device and analytical equipment is arranged,
It can make full use of the advantage of hyperion detection technique, save the cost realizes the simple, fast and efficient monitoring to water quality.This
Invention can be realized water quality monitoring spectral measurement, data processing point, result feedback " Trinity ", make full use of spectral detection skill
The advantage of art saves equipment cost, uses manpower and material resources sparingly, and shortens time-consuming, has the widely applied potentiality that put goods on the market.
Detailed description of the invention
Fig. 1 is the module map of one of embodiment of the present invention water quality parameter spectroscopic analysis system；
Fig. 2 is the inversion of water body chlorophyll alpha concentration flow chart in the embodiment of the present invention；
Fig. 3 is the water turbidity inversion process figure in the embodiment of the present invention；
Fig. 4 is the water body suspension degree inversion process figure in the embodiment of the present invention；
Fig. 5 is the communication pattern figure between spectra collection device and control device in the embodiment of the present invention；
Fig. 6 is the module map of another water quality parameter spectroscopic analysis system in the embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below
Example is not intended to limit the scope of the invention for illustrating the present invention.
Fig. 1 is the module map of one of embodiment of the present invention water quality parameter spectroscopic analysis system, as shown in Figure 1, described
Water quality parameter spectroscopic analysis system includes spectra collection device and analytical equipment；The spectra collection device, for sending out light beam
It is mapped to tested water body, and the optical signal based on the light beam and the signal that diffuses, obtains water quality parameter spectroscopic data, and by institute
It states water quality parameter spectroscopic data and is sent to the analytical equipment；The analytical equipment, for according to the water quality parameter spectrum number
According to obtaining the water quality parameter Spectroscopic analysis results by inverse model.
Specifically, water quality parameter spectroscopic data be propagate as electronic signals in spectra collection device and analytical equipment it
Between.
Further, spectra collection device obtain water quality parameter spectroscopic data, water quality parameter spectroscopic data at this time be for
The form of optical signal has converted optical signals into electric signal, and be transferred in analytical equipment in spectra collection device.
Further, analytical equipment obtains water quality parameter Spectroscopic analysis results by inverse model according to the electric signal.Water
Matter parameter Spectroscopic analysis results include the degree of quality and variation tendency of water body to be measured.
Further, inverting be all directions in space while in turn, each coordinate can with the negative value of own come
Instead of a kind of method.
A kind of water quality parameter spectroscopic analysis system provided by the invention, by the way that spectra collection device and analytical equipment is arranged,
It can make full use of the advantage of hyperion detection technique, save the cost realizes the simple, fast and efficient monitoring to water quality.
Based on the above embodiment, the water quality parameter spectroscopic analysis system further includes control device；The control device is used
It is sent in the water quality parameter spectroscopic data that the reception spectra collection device is sent, and by the water quality parameter spectroscopic data
To the analytical equipment.
Specifically, control device is preferably arranged to smart phone, it should be noted that being set as smart phone is the present invention
A kind of preferred embodiment of embodiment, the embodiment of the present invention also protect other set-up modes, are such as arranged to Intelligent bracelet, plate electricity
Brain or desktop computer.
Based on the above embodiment, the spectra collection device includes light source, optical filter, detector and data transmission module；
The light source, for emitting light beam irradiation tested water body；The optical filter, for being emitted to the tested water body to the light source
Light beam optical signal and the signal that diffuses be filtered, the optical signal and the signal that diffuses include the water quality
The information of parameter spectroscopic data；The detector, for receiving the filtered optical signal of the optical filter and the signal that diffuses,
And the optical signal and the signal that diffuses are respectively converted into electric signal and diffusing reflection electric signal；The data transmission module,
For the electric signal and diffusing reflection electric signal to be sent to the control device.
Specifically, spectra collection device is preferably provided to spectrometer.Optical filter is the light for choosing required radiation wave band
Learn device.One general character of optical filter, exactly can allow the imaging of celestial body to become brighter, because all without any optical filter
Optical filter can all absorb certain wavelength, so that object be made to become darker.
Detector (detector) is the device of observation and record particle, in nuclear physics and particle physics experimental study not
The equipment that can lack.Detector can be divided into two classes：Counter and track detector.In embodiments of the present invention, detector is used for
Receive the filtered optical signal of the optical filter and the signal that diffuses, and the optical signal and the signal that diffuses are turned respectively
It is changed to electric signal and diffusing reflection electric signal.
Based on the above embodiment, the spectra collection device further includes power module, the power module for power, with
And management of charging and discharging.
Based on the above embodiment, the control device includes control module, transmission module and preserving module；The control mould
Block is also used to be arranged the spectra collection dress for adjusting the time of integration of the detector and the parameter of acquisition spectroscopic data
The average sample number set；The transmission module, for receiving the electric signal and overflow anti-that the data transmission module is sent
Electric signal, and the electric signal and diffusing reflection electric signal are sent to the analytical equipment, it is also used to receive the analysis dress
Set the water quality parameter Spectroscopic analysis results of transmission；The preserving module, for saving the electric signal and diffusing reflection telecommunications
Number corresponding water quality parameter spectroscopic data, is also used to save the water quality parameter Spectroscopic analysis results.
Specifically, preserving module supports a variety of preservation formats.
Based on the above embodiment, the control device further includes drafting module；The drafting module is used for according to the electricity
Signal and diffusing reflection electric signal draw the curve of spectrum.
Based on the above embodiment, the control device further includes display module；The transmission module is also used to the water
Matter parameter Spectroscopic analysis results are sent to the display module；The display module is for showing the water quality parameter spectrum analysis
As a result, and the curve of spectrum drawn of the display drafting module.
Based on the above embodiment, the analytical equipment is further used for：The water quality parameter spectroscopic data is located in advance
Reason, the pretreatment include that denoising and reflectivity calculate；Using correlation coefficient process, to the pretreated water quality parameter spectrum
Data extract best features wave band；Based on the best features wave band, the corresponding band ratio of the best features wave band is obtained；
It is turbid based on the corresponding band ratio building water quality chlorophyll-a concentration inverse model, concentration of suspension inverse model and water body
Spend inverse model；It is turbid based on the water quality chlorophyll-a concentration inverse model, the concentration of suspension inverse model and the water body
Inverse model is spent, the water quality parameter Spectroscopic analysis results are obtained.
Fig. 2 is the inversion of water body chlorophyll alpha concentration flow chart in the embodiment of the present invention, as shown in figure 3, according to the water of input
The Spectral Property Analysis of body water surface spectrum and water body chlorophyll alpha, original spectral data is denoised, reflectivity calculate etc. pre- place
Reason；Best features wave band or combination are extracted using correlation coefficient process to pretreated spectroscopic data；Utilize best features wave band
Calculate band ratio；Utilize the inverse model of band ratio building water body chlorophyll alpha concentration key parameter；Finally export water body leaf
Green element a concentration quantitative analyzes result.
The best features wave band extracting method --- correlation coefficient process, calculation formula are as follows：
In formula：xiIndicate first differential of the sample point from water radiance, yiThe concentration of water body index parameter is surveyed,Point
The average value of the two is not represented.Wherein first differential algorithmic formula：
λ in formulai+1, λi, λi-1For adjacent wavelength, R (λi) ' it is wavelength XiFirst differential reflectance spectrum.
The band ratio method calculation formula is as follows：
L in formulaw(λ1) and Lw(λ2) it is corresponding wave band λ1And λ2Water-leaving radiance.
The inverse model of the water quality chlorophyll-a concentration based on band ratio is as follows：
F (x)=7.8735x-5.7626；
Fig. 3 is the water turbidity inversion process figure in the embodiment of the present invention, as shown in figure 4, according to the water body water surface of input
Spectrum and water turbidity Spectral Property Analysis, original spectral data is denoised, reflectivity calculate etc. pretreatment；To pretreatment
Spectroscopic data afterwards extracts best features wave band or combination using correlation coefficient process；Wave band ratio is calculated using best features wave band
Value；Utilize the inverse model of band ratio building water turbidity key parameter；Finally export the quantitative analysis results of water turbidity.
Wherein, the band ratio method calculation formula is as follows：
In formula, Lw(λ1) and Lw(λ2) it is corresponding wave band λ1And λ2Water-leaving radiance.
The water turbidity inverse model based on band ratio is as follows：
F (x)=360.09x-218.8
Fig. 4 is the water body suspension degree inversion process figure in the embodiment of the present invention, as shown in figure 5, according to the water body water of input
The Spectral Property Analysis of face spectrum and water body suspension degree, original spectral data is denoised, reflectivity calculate etc. pretreatment；It is right
Pretreated spectroscopic data extracts best features wave band or combination using correlation coefficient process；Wave is calculated using best features wave band
Section ratio；Utilize the inverse model of band ratio building water body suspension degree key parameter；Finally export quantifying for water body suspension degree
Analyze result.
Wherein, the band ratio method calculation formula is as follows：
L in formulaw(λ1) and Lw(λ2) it is corresponding wave band λ1And λ2Water-leaving radiance.
The water body recovery technology retrieving concentration model based on band ratio is as follows：
F (x)=274.2x-167.11.
Based on the above embodiment, the analytical equipment is cloud platform.
Based on the above embodiment, the spectra collection device and the control device are carried out by bluetooth or by USB
Data transmission.
Fig. 5 is the communication pattern figure between spectra collection device and control device in the embodiment of the present invention, the present embodiment
Referring to figure 5..
As a preferred embodiment, Fig. 6 is another water quality parameter spectroscopic analysis system in the embodiment of the present invention
Module map, the present embodiment please refer to Fig. 6.
As shown in fig. 6, including spectra collection device and analytical equipment；The spectra collection device is used for beam emissions
To tested water body, and the optical signal based on the light beam and the signal that diffuses, water quality parameter spectroscopic data is obtained, and will be described
Water quality parameter spectroscopic data is sent to the analytical equipment；The analytical equipment is used for according to the water quality parameter spectroscopic data,
The water quality parameter Spectroscopic analysis results are obtained by inverse model.
Water quality parameter spectroscopic analysis system further includes control device；The control device, for receiving the spectra collection
The water quality parameter spectroscopic data that device is sent, and the water quality parameter spectroscopic data is sent to the analytical equipment.
The spectra collection device includes light source, optical filter, detector and data transmission module；The light source, for sending out
Irradiating light beam irradiates tested water body；The optical filter, the optical signal of the light beam for being emitted to the tested water body to the light source
Signal is filtered with diffusing, and the optical signal and the signal that diffuses include the water quality parameter spectroscopic data
Information；The detector, for receiving the filtered optical signal of the optical filter and diffusing signal, and by the optical signal
Electric signal and diffusing reflection electric signal are respectively converted into the signal that diffuses；The data transmission module is used for the telecommunications
Number and diffusing reflection electric signal be sent to the control device.
The spectra collection device further includes power module, and the power module is used to power and management of charging and discharging.
The control device includes control module, transmission module and preserving module；The control module, it is described for adjusting
The time of integration of detector and the parameter of acquisition spectroscopic data, are also used to be arranged the average sample time of the spectra collection device
Number；The transmission module, the electric signal and diffusing reflection electric signal sent for receiving the data transmission module, and by institute
It states electric signal and diffusing reflection electric signal is sent to the analytical equipment, be also used to receive the water quality that the analytical equipment is sent
Parameter Spectroscopic analysis results；The preserving module, for saving the electric signal and the corresponding water quality parameter of diffusing reflection electric signal
Spectroscopic data is also used to save the water quality parameter Spectroscopic analysis results.
The control device further includes drafting module；The drafting module for according to the electric signal with diffusing reflection telecommunications
Number draw the curve of spectrum.
The control device further includes display module；The transmission module is also used to the water quality parameter spectrum analysis knot
Fruit is sent to the display module；The display module is for showing the water quality parameter Spectroscopic analysis results, and display institute
State the curve of spectrum of drafting module drafting.
The analytical equipment is further used for：The water quality parameter spectroscopic data is pre-processed, the pretreatment packet
It includes denoising and reflectivity calculates；Using correlation coefficient process, the pretreated water quality parameter spectroscopic data is extracted best special
Levy wave band；Based on the best features wave band, the corresponding band ratio of the best features wave band is obtained；Based on described corresponding
Band ratio constructs water quality chlorophyll-a concentration inverse model, concentration of suspension inverse model and water turbidity inverse model；It is based on
The water quality chlorophyll-a concentration inverse model, the concentration of suspension inverse model and the water turbidity inverse model obtain
The water quality parameter Spectroscopic analysis results.
The analytical equipment is cloud platform.The spectra collection device and the control device by bluetooth or pass through
USB carries out data transmission.
It should be noted that control device can upload, download cloud data, it is based on http communication protocol, mobile phone terminal control
Module gives spectroscopic data to cloud intellectual analysis device and carries out data process method, and receives the calculated result of cloud return.
Preferably, the light source is miniature halogen light source, the detector spectrum coverage area is 350-1050nm, light
Spectral resolution is 5nm；The data transmission module supports the double-channel data transmission mode of USB and Bluetooth communication；The power supply
Module supports USB and the double charge modes of power supply；The control device supports bluetooth 4.0 and the above version SPP serial communication, operation
Environmental Support android5.0 and the above version and iSO6.0 and the above version.
It should be noted that the portable spectrometer acquisition module in the embodiment of the present invention refers to spectra collection device, intelligence
Energy mobile phone control module refers to control device, and cloud platform intelligent algorithm analysis module refers to analytical equipment.
The present invention is based on MEMS and image sensor technologies to make its body using the spectra collection unit having a size of Centimeter Level
Product is small, light-weight, it is easier to carry；Internal USB, bluetooth module simultaneously, convenient for being carried out with data processing equipments such as smart phones
Wired, wireless data transmission, using more convenient.The present invention uses the control device based on smart phone, and control spectroscopic data is adopted
Collection, display and processing, can be realized real-time display testing result, and spectroscopic data and testing result are saved in cloud in real time
Server, data safety are easy to shared.Present invention proposition, will based on big data, the Data Analysis Services module of cloud computing platform
Complicated spectroscopic data processing establishes cloud data processing centre with analytic process, substantially increases the arithmetic speed of data, right
Aquatic monitoring response speed is faster.
The present invention can solve the problem complicated and time-consuming compared with Great Lakes's water quality monitoring instrument equipment weight, detection method, real
The purpose for conveniently monitoring a wide range of lake region water quality is showed；Water quality spectroscopic data and testing result can upload cloud in real time simultaneously
End storage, data safety are easy to shared.
A kind of water quality parameter spectroscopic analysis system provided by the invention, by the way that spectra collection device and analytical equipment is arranged,
It can make full use of the advantage of hyperion detection technique, save the cost realizes the simple, fast and efficient monitoring to water quality.This
Invention can be realized water quality monitoring spectral measurement, data processing point, result feedback " Trinity ", make full use of spectral detection skill
The advantage of art saves equipment cost, uses manpower and material resources sparingly, and shortens time-consuming, has the widely applied potentiality that put goods on the market.
Finally, method of the invention is only preferable embodiment, it is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (10)
1. a kind of water quality parameter spectroscopic analysis system, which is characterized in that including spectra collection device and analytical equipment；
The spectra collection device is used for beam emissions to tested water body, and optical signal and diffusing reflection based on the light beam
Optical signal obtains water quality parameter spectroscopic data, and the water quality parameter spectroscopic data is sent to the analytical equipment；
The analytical equipment, for obtaining the water quality parameter light by inverse model according to the water quality parameter spectroscopic data
Spectrum analysis result.
2. analysis system according to claim 1, which is characterized in that further include control device；
The control device, the water quality parameter spectroscopic data sent for receiving the spectra collection device, and will be described
Water quality parameter spectroscopic data is sent to the analytical equipment.
3. analysis system according to claim 2, which is characterized in that the spectra collection device include light source, optical filter,
Detector and data transmission module；
The light source, for emitting light beam irradiation tested water body；
The optical filter, for the light source is emitted to the tested water body light beam optical signal and diffuse signal into
Row filtering processing, the optical signal and the signal that diffuses include the information of the water quality parameter spectroscopic data；
The detector, for receiving the filtered optical signal of the optical filter and diffusing signal, and by the optical signal
Electric signal and diffusing reflection electric signal are respectively converted into the signal that diffuses；
The data transmission module, for the electric signal and diffusing reflection electric signal to be sent to the control device.
4. analysis system according to claim 3, which is characterized in that the spectra collection device further includes power module,
The power module is used to power and management of charging and discharging.
5. analysis system according to claim 3, which is characterized in that the control device includes control module, transmission mould
Block and preserving module；
The control module is also used to be arranged for adjusting the time of integration of the detector and the parameter of acquisition spectroscopic data
The average sample number of the spectra collection device；
The transmission module, the electric signal and diffusing reflection electric signal sent for receiving the data transmission module, and will
The electric signal and diffusing reflection electric signal are sent to the analytical equipment, are also used to receive the water that the analytical equipment is sent
Matter parameter Spectroscopic analysis results；
The preserving module is also used for saving the electric signal and the corresponding water quality parameter spectroscopic data of diffusing reflection electric signal
In the preservation water quality parameter Spectroscopic analysis results.
6. analysis system according to claim 5, which is characterized in that the control device further includes drafting module；
The drafting module is for drawing the curve of spectrum with diffusing reflection electric signal according to the electric signal.
7. analysis system according to claim 6, which is characterized in that the control device further includes display module；
The transmission module is also used to the water quality parameter Spectroscopic analysis results being sent to the display module；
The display module, for showing the water quality parameter Spectroscopic analysis results, and the display drafting module is drawn
The curve of spectrum.
8. analysis system according to claim 1, which is characterized in that the analytical equipment is further used for：
The water quality parameter spectroscopic data is pre-processed, the pretreatment includes that denoising and reflectivity calculate；
Using correlation coefficient process, best features wave band is extracted to the pretreated water quality parameter spectroscopic data；
Based on the best features wave band, the corresponding band ratio of the best features wave band is obtained；
Based on the corresponding band ratio building water quality chlorophyll-a concentration inverse model, concentration of suspension inverse model and water
Body turbidity inverse model；
Based on the water quality chlorophyll-a concentration inverse model, the concentration of suspension inverse model and the water turbidity inverting
Model obtains the water quality parameter Spectroscopic analysis results.
9. analysis system according to claim 1, which is characterized in that the analytical equipment is cloud platform.
10. analysis system according to claim 2, which is characterized in that the spectra collection device and the control device
Carry out data transmission by bluetooth or by USB.
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Application publication date: 20181116 |