CN105784606A - Optical property based water quality monitoring system - Google Patents
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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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- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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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
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
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- G01N21/47—Scattering, i.e. diffuse reflection
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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
- G01N2021/4702—Global scatter; Total scatter, excluding reflections
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Abstract
The invention discloses an optical property based water quality monitoring system. The optical property based water quality monitoring system comprises a data collection terminal and a data monitor terminal connected with the data collection terminal. The data collection terminal comprises a spectral radiometer, an underwater spectrograph, a water body absorption/attenuation measuring instrument, a water body back-scattering measuring instrument, an ultraviolet-visible spectrophotometer, a analog-digital conversion circuit, an amplifying circuit,, a controller module, a data transmission module and a power module. The data monitor terminal comprises a storage module, a display module, a clock module, a processor module and a radio frequency identification module. The optical property based water quality monitoring system has the advantages that instruments and devices with multiple functions are integrated, one instrument can detect multiple parameters, convenience in application is achieved, and the problems of difficulty in mutual data verification and connection, low data processing efficiency, proneness to error and incapability of processing massive actually-measured optical data due to mutual independence of data processing of the instruments and the devices are avoided effectively.
Description
Technical field
The present invention relates to a kind of water quality acquisition processing system, particularly relate to the water quality monitoring system reason system of a kind of optically-based characteristic, belong to field of water quality detection.
Background technology
Breeding water is owing to being subject to the impact of mankind's activity and other factors, and the material causing entry into water body has exceeded water body self-purification ability, causes water quality deterioration, has influence on water body purposes.Wherein main pollutant have: heavy metal contaminants, nonmetallic inorganic toxic pollutant, toxic organic compound, oxygen consumption organic, and acid, alkali pollution thing, these all can have a strong impact on the development of aquaculture.In consideration of it, industry develops multiple-quality water detection equipment, but the comprehensive detection ability of this kind equipment is often not enough, detects parameter
Comparatively single, and data be unfavorable for transmit.
Water quality monitoring is the Main Basis of water quality assessment and water prevention and cure of pollution, day by day serious along with water pollution problem, and water quality monitoring becomes the significant problem that Sustainable Socioeconomic Development must solve.Therefore, fast water quality monitoring is just particularly important accurately.The appearance of remote sensing technology and development, provide new opportunity and selection to the monitoring and evaluation of water quality.Water environment remote sensing is with remote sensing technology for relying on, and the relation between the spectral signature and the water quality parameter concentration that are formed by analyzing water body reflection, absorption and diffusesolarradiation energy sets up what water quality parameter inversion algorithm realized.Satellite remote sensing information is utilized to carry out the spatial distribution of the important polluter of water body in wide area and dynamic quantitative analysis, can make up that routine sampling observation time space interval is big to a certain extent and the defect that wastes time and energy and difficulty, water quality distribution on room and time and situation of change can be reflected, find polluter and contaminant transportation feature that some conventional methods are difficult to disclose, there is the advantage that monitoring range is wide, speed is fast, cost is low and is convenient for long-term dynamics monitoring.Therefore, application remote sensing technology carries out water quality study mechanism, and then the Appropriate application of research water resource and protection, has caused the growing interest of various countries, has become one of the study hotspot and difficult point of current international, domestic remote sensing circle.
At present, the domestic scientific research institutions having such instrument and equipment, institution of higher learning etc. are also continuously increased, such as remote sensing institute of the Chinese Academy of Sciences, national marine institute, South Sea institute of oceanography, Nanjing geography and research of lakes institute, Wuhan University, East China Normal University, Nanjing University, many the units such as Yancheng Teachers College have had such measurement device all, but, owing to distinct device is produced by different manufacturers, its spectral resolution, receptance functions etc. have very big difference, and instrument data measured directly generally require through processing and could deposit in spectral database as the spectrum with optical significance after conversion.Its measured data is processed at present almost without professional, general software system.Researcher generally uses the software that instrument carries measured signal pretreatment to be converted to after the spectral signal with optical significance, carries out data process in conjunction with mathematical statistics softwares such as such as SPSS, EXCEL.Part researcher needs for self, algorithm etc. for a certain instrument data, a certain water quality parameter develops the functional module being only applicable to certain research, even certain flow chart of data processing needs, these functional modules are each incompatible, not architectonical, most simply by single model algorithm computer programing.Therefore, the process of each instrument and equipment data is separate, it is difficult to realizing mutually checking and associating between data, the efficiency that data process is low and error-prone, it is impossible to meet a large amount of process problem surveying optical data.
Summary of the invention
The technical problem to be solved is the water quality monitoring system reason system that the deficiency for background technology provides a kind of optically-based characteristic.
The present invention solves above-mentioned technical problem by the following technical solutions
A kind of water quality monitoring system of optically-based characteristic, comprise data collection station and connected data monitoring terminal, described data collection station comprises spectral radiometer, Underwater Optical spectrometer, water body absorption/attenuation meter, water body back scattering measuring instrument, ultraviolet-uisible spectrophotometer, analog to digital conversion circuit, amplifying circuit, controller module, data transmission module, power module, described spectral radiometer, Underwater Optical spectrometer, water body absorption/attenuation meter, water body back scattering measuring instrument, ultraviolet-uisible spectrophotometer passes sequentially through analog to digital conversion circuit respectively, amplifying circuit connects controller module, described data transmission module, power module is connected on controller module corresponding port；Described data monitoring terminal comprises memory module, display module, clock module, processor module, radio frequency identification module, and described memory module, display module, clock module, radio frequency identification module are connected with processor module respectively.
As the water quality monitoring system of a kind of optically-based characteristic of the present invention manage system it is preferred that scheme, described spectral radiometer adopts HydroRad EO-1 hyperion radiometer.
As the water quality monitoring system of a kind of optically-based characteristic of the present invention manage system it is preferred that scheme, described Underwater Optical spectrometer adopts RAMSES-ARC Underwater Optical spectrometer.
As the water quality monitoring system of a kind of optically-based characteristic of the present invention manage system it is preferred that scheme, described water body absorptions/attenuation meter employing AC-S water body light absorption-attenuation meter.
As the water quality monitoring system of a kind of optically-based characteristic of the present invention manage system it is preferred that scheme, described water body back scattering measuring instrument adopts HydroScat-6P water body back scattering measuring instrument.
As a kind of optically-based characteristic of the present invention water quality monitoring system manage system it is preferred that scheme, described ultraviolet-uisible spectrophotometer adopts 1901 series ultraviolet visible spectrophotometer.
The present invention adopts above technical scheme compared with prior art, has following technical effect that
1, the present invention collects multi-functional each instrument and equipment and is detected on one, and an instrument can detect many kinds of parameters, and application is convenient, and two is the unified extraction process being convenient for measuring signal, and three is the analysis precision that improve water quality, the cost performance additionally also substantially increased；Effectively avoid because the process of each instrument and equipment data is separate, it is difficult to realizing mutually checking and associating between data, the efficiency that data process is low and error-prone, it is impossible to meet a large amount of process problem surveying optical data.
2, the present invention is additionally provided with clock module and data memory module, every detection parameter of detection instruction water quality treatment is sent by data memory module real-time storage micro controller module, store the time by clock module real time record, be effectively prevented from the loss of data because instrument failure brings.
Accompanying drawing explanation
Fig. 1 is present configuration block diagram；
Fig. 2 is data collection station structure chart of the present invention；
Fig. 3 is data monitoring terminal structure figure of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is described in further detail:
As it is shown in figure 1, the water quality monitoring system of a kind of optically-based characteristic, comprise data collection station and connected data monitoring terminal；
As shown in Figure 2, described data collection station comprises spectral radiometer, Underwater Optical spectrometer, water body absorption/attenuation meter, water body back scattering measuring instrument, ultraviolet-uisible spectrophotometer, analog to digital conversion circuit, amplifying circuit, controller module, data transmission module, power module, described spectral radiometer, Underwater Optical spectrometer, water body absorption/attenuation meter, water body back scattering measuring instrument, ultraviolet-uisible spectrophotometer passes sequentially through analog to digital conversion circuit respectively, amplifying circuit connects controller module, described data transmission module, power module is connected on controller module corresponding port；The information parameter gathered is transmitted to controller module through first data transmission module transfer to data processing terminal by described spectral radiometer, Underwater Optical spectrometer, water body absorption/attenuation meter, water body back scattering measuring instrument, ultraviolet-uisible spectrophotometer respectively；
As it is shown on figure 3, described data monitoring terminal comprises memory module, display module, clock module, processor module, radio frequency identification module, described memory module, display module, clock module, radio frequency identification module are connected with processor module respectively.Described processor module is for storing result by data memory module, and clock module is for the real time record storage time.
Described data collection station is connected by wireless network with data processing terminal, described spectral radiometer adopts HydroRad EO-1 hyperion radiometer, described Underwater Optical spectrometer adopts RAMSES-ARC Underwater Optical spectrometer, described water body absorption/attenuation meter adopts AC-S water body light absorption-attenuation meter, described water body back scattering measuring instrument adopts HydroScat-6P water body back scattering measuring instrument, described ultraviolet-uisible spectrophotometer adopts 1901 series ultraviolet visible spectrophotometer, described controller module and processor module all adopt AVR series monolithic, described first data transmission module and the second data transmission module all adopt GPRS wireless data transfer module.
Wherein said spectral radiometer, Underwater Optical spectrometer, water body absorption/attenuation meter, water body back scattering measuring instrument, ultraviolet-uisible spectrophotometer specific works as follows:
Spectral radiometer, described spectral radiometer adopts HydroRad EO-1 hyperion radiometer: by observing acquisition water surface spectroscopic data, face toward the measured value of surface measurement acquisition including instrument, instrument measures the measured value of acquisition facing to sky, instrument faces the measured value blocking the diffuse-reflectance reference plate measurement acquisition before and after direct sunlight；Utilize the data that spectral radiometer obtains, calculate and derive the water surface total incident irradiance degree, dried up spoke brightness, Remote Sensing Reflectance, be located just at the irradiance ratio of below the water surface；The difficult point carrying out long-time optical measurement in water body is biological pollution, and usual instrument just has the biologies such as algae over time and covers instrument surface, particularly optical instrument, as long as there being thing attachment will produce measurement error on camera lens.HOBILabs company measures for a long time for convenience of spectrum under water, adds HydroShutter-HR antifouling system on the basis of HydroRad.HydroShutter-HR antifouling system is specifically designed to optical-fiber type HydroRad optical pickocff and HydroRad-ES1, copper shutter is covered in sensor surface, camera lens is protected by Electronic control, before sampling every time, shutter automatically opens up, after having sampled, shutter revolving coverage method sensor, thus enabling the sensor to carry out under water measuring for a long time and not polluted by plankton.
Underwater Optical spectrometer, for observing acquisition water surface and the up spoke brightness of the following different depth of water surface, descending irradiance；
Utilize the data that Underwater Optical spectrometer obtains, calculate and derive unrestrained attenuation quotient, normalization is dried up spoke brightness, the following irradiance ratio of water surface and the following Remote Sensing Reflectance of water surface；RAMSES-ARC Underwater Optical spectrometer: RAMSES series sensor gathers target optical spectrum information, by analyzing spectrum file, therefrom obtains the spectral information relevant to goal in research and measurement data.This instrument provides greatly convenient for the application of accurate hyperspectral analysis.Irradiance and spoke brightness can be measured, can be used for water is measured, it is also possible to measure in air.Feature: irradiance and spoke brightness measurement, sensor type designs, low-power consumption, and volume is little, applied range, and precision is high, air and water alignment, modular system, up-to-date nano coating technology；
Water body absorption/attenuation meter, is used for measuring water body absorptance and attenuation quotient, and surveyed data carries out temperature, salt correction and scatter correction；Water body absorption/attenuation meter of the present invention adopts AC-S water body light absorption-attenuation meter, and AC-S Water Inherent Optical Properties measuring instrument is the EO-1 hyperion instrument that can simultaneously measure water body attenuation quotient and absorptance produced by WETLabs company of the U.S..This instrument provides the spectral resolution of 4nm, the spectral measurement ranges of 400-720nm.Instrument adopts the incandescent lamp bulb that dual path is filled in conjunction with two argon, and the linear variable filter through a rotation sweep obtains scatter spectra.Light, after the water body of 10CM or 25CM is propagated, is received by narrow aperture receiver and large area detector respectively and obtains attenuation quotient and absorptance.
Water body back scattering measuring instrument, is used for measuring backscattering coefficient, and the signal value that instrument obtains is converted into the parameter value with optical significance, and then calculate the backscattering coefficient of aquatic particle and total backscattering coefficient；And then optimize bio-optical model parameter, with accurate simulation water surface Remote Sensing Reflectance；HydroScat-6 (hereinafter referred to as HS-6) is the business-like multispectral back scattering instrument of first item in the world, can measure back scattering and fluorescence simultaneously, is uniquely a be up to now provided that 6 backward scattered instruments of wavelength.HS-6, between more than 10 years introduced to the market, enjoys great prestige in industry with its sane remarkable performance and high sensitivity, high reliability always.HS-6 is self-contained, and self is with complete embedded controller, data storage element and rechargeable battery.Very powerful by the software-HydroSoft function based on windows platform of HOBILabs company of U.S. independent research, can be used for the correction of the demarcation of instrument, measurement data, it is ensured that the accuracy of measurement.
Ultraviolet-uisible spectrophotometer, for measuring the Optical Absorption Characteristics of water constituent, including suspended particulate substance absorbance, non-algae suspended particulate substance absorbance, chromophoric dissolved organic matter absorbance and chlorophyll absorbance, and is corrected initial data processing；Utilize famous QAA model, carry out optics closure checking, parameters optimization, output parameter value more accurately, and finally simulation exports water surface Remote Sensing Reflectance.Ultraviolet-uisible spectrophotometer is that a kind of with a long history, coverage rate is very wide, uses a lot of analytical tool, is obtained for and is extremely widely applied in the scientific research of every field, the production works such as organic chemistry, biochemistry, drugs analysis, food test, medical and health, environmental conservation, life sciences.
Beijing Puxi General Instrument Co., Ltd is as the professional manufacturing enterprise of analytical tool, and ultraviolet spectrophotometer design and manufacturing experience for many years obtain in TU1901 series and embody more fully.TU-1901, TU-1900 ultraviolet-uisible spectrophotometer series of products are with its outstanding technical specification and reliable and stable operating characteristic, close friend is display interface intuitively, smooth human computer conversation's operation, it is successfully realized the strict demand of superhigh precision and reliability measurement, can greatly meet most professional user's analytical work needs.
In sum, the present invention collects multi-functional each instrument and equipment and is detected on one, and an instrument can detect many kinds of parameters, and application is convenient, and two is that the unified extraction being convenient for measuring signal processes, and three is the analysis precision that improve water quality, the cost performance additionally also substantially increased；Effectively avoid because the process of each instrument and equipment data is separate, it is difficult to realizing mutually checking and associating between data, the efficiency that data process is low and error-prone, it is impossible to meet a large amount of process problem surveying optical data.
The present invention is additionally provided with clock module and data memory module, every detection parameter of detection instruction water quality treatment is sent by data memory module real-time storage micro controller module, store the time by clock module real time record, be effectively prevented from the loss of data because instrument failure brings.
Those skilled in the art of the present technique it is understood that unless otherwise defined, all terms used herein (include technical term and scientific terminology) and have with the those of ordinary skill in art of the present invention be commonly understood by identical meaning.Should also be understood that in such as general dictionary, those terms of definition should be understood that have the meaning consistent with the meaning in the context of prior art, and unless defined as here, will not explain by idealization or excessively formal implication.
Above example is only the technological thought that the present invention is described, it is impossible to limits protection scope of the present invention, every technological thought proposed according to the present invention, any change done on technical scheme basis with this, each falls within scope.Above embodiments of the present invention are explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, it is also possible to or else depart from and make a variety of changes under the premise of present inventive concept.
Claims (6)
1. the water quality monitoring system of an optically-based characteristic, it is characterized in that: comprise data collection station and connected data monitoring terminal, described data collection station comprises spectral radiometer, Underwater Optical spectrometer, water body absorption/attenuation meter, water body back scattering measuring instrument, ultraviolet-uisible spectrophotometer, analog to digital conversion circuit, amplifying circuit, controller module, data transmission module, power module, described spectral radiometer, Underwater Optical spectrometer, water body absorption/attenuation meter, water body back scattering measuring instrument, ultraviolet-uisible spectrophotometer passes sequentially through analog to digital conversion circuit respectively, amplifying circuit connects controller module, described data transmission module, power module is connected on controller module corresponding port；Described data monitoring terminal comprises memory module, display module, clock module, processor module, radio frequency identification module, and described memory module, display module, clock module, radio frequency identification module are connected with processor module respectively.
2. the water quality monitoring system reason system of a kind of optically-based characteristic according to claim 1, it is characterised in that: described spectral radiometer adopts HydroRad EO-1 hyperion radiometer.
3. the water quality monitoring system reason system of a kind of optically-based characteristic according to claim 1, it is characterised in that: described Underwater Optical spectrometer adopts RAMSES-ARC Underwater Optical spectrometer.
4. the water quality monitoring system reason system of a kind of optically-based characteristic according to claim 1, it is characterised in that: described water body absorption/attenuation meter adopts AC-S water body light absorption-attenuation meter.
5. the water quality monitoring system reason system of a kind of optically-based characteristic according to claim 1, it is characterised in that: described water body back scattering measuring instrument adopts HydroScat-6P water body back scattering measuring instrument.
6. the water quality monitoring system reason system of a kind of optically-based characteristic according to claim 1, it is characterised in that: described ultraviolet-uisible spectrophotometer adopts 1901 series ultraviolet visible spectrophotometer.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248601A (en) * | 2016-09-14 | 2016-12-21 | 南京吉泽信息科技有限公司 | A kind of OLI of utilization data estimation water body overflows the model method of attenuation quotient |
| CN106483258A (en) * | 2016-12-14 | 2017-03-08 | 北京林业大学 | Air quality data collection and radio transmitting device under a kind of forest environment |
| CN109374552A (en) * | 2018-11-23 | 2019-02-22 | 国家海洋局第二海洋研究所 | A kind of water body absorption coefficient measuring device based on segmentation optical path |
| CN111888956A (en) * | 2019-05-05 | 2020-11-06 | 中国石油天然气集团有限公司 | High-concentration electric desalting sewage on-line monitoring device and method |
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