CN105784800A - Intelligent monitoring system for heavy metal content of industrial water quality - Google Patents
Intelligent monitoring system for heavy metal content of industrial water quality Download PDFInfo
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- CN105784800A CN105784800A CN201610274780.8A CN201610274780A CN105784800A CN 105784800 A CN105784800 A CN 105784800A CN 201610274780 A CN201610274780 A CN 201610274780A CN 105784800 A CN105784800 A CN 105784800A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/333—Ion-selective electrodes or membranes
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
Abstract
The invention discloses an intelligent monitoring system for heavy metal content of industrial water quality. The intelligent monitoring system comprises a detection terminal and a remote monitor terminal connected with the detection terminal. The detection terminal comprises a microcontroller module, an ion concentration detection module, a voltage amplifier, an analog-digital converter, a data transmission module and a power module. The ion concentration detection module is connected with the microcontroller module through the voltage amplifier and the analog-digital converter in sequence. The data transmission module and the power module are connected to corresponding ports of the microcontroller module respectively. The remote monitor terminal comprises a controller module, a radio frequency identification module, a display module and a data storage module. The radio frequency identification module, the display module and the data storage module are connected with the controller module. The intelligent monitoring system has the advantages that electrochemical response performance of the potentiometry is utilized, a mathematic model of electrode potential and ion concentration is created according to unary linear regression, and accordingly, measurement, display and storage of ion concentration are achieved.
Description
Technical field
The present invention relates to a kind of ion concentration detection system, particularly relate to a kind of industry water quality content of beary metal intelligent monitor system, belong to automatic-detection control field.
Background technology
Heavy metal refers to the proportion metal more than 5, (referring generally to the density metal more than 4.5 grams every cubic centimetre) there are about 45 kinds, although such as copper, lead, zinc, ferrum, cobalt, nickel, manganese, cadmium, hydrargyrum, tungsten, molybdenum, gold, silver etc. the heavy metals such as manganese, copper, zinc are the trace element required for vital movement, but it is necessary that major part heavy metal such as hydrargyrum, lead, cadmium etc. are not vital movement institute, and all heavy metals to exceed finite concentration all poisonous to human body.
Clinical manifestation such as mercurialism has, General Symptoms is headache, dizzy, weak, heating. oral cavity and symptom of digestive tract show as gums redness ache, rotten to the corn hemorrhage, odontoseisis, gum groove pyorrhea, oral cavity frowziness, and having Nausea and vomiting, inappetence, stomachache, diarrhoea. contact skin may occur in which red grouper pimple, is distributed more with extremity and Head And Face.Small number of patients can have renal damage, indivedual severe patients can have the performance of the acute interstitial pneumonias such as cough, chest pain, dyspnea, dark purple purple.
Agricultural soil is the class special soil strongly affected by mankind's activity, and its environmental quality is healthy closely related with people's.Cure of Soil pollution is essentially from a large amount of uses of Industrial " three Waste " and pesticide, chemical fertilizer, pollutant can enter people's soil by irrigation water, soil pollution is caused also by atmospheric pollution, aerial particulate matter (containing heavy metal and carcinogen etc.) dried wet deposition, As time goes on, the content of beary metal such as farmland topsoil lead, copper, zinc, hydrargyrum has the trend of increase.Due to the Absorption of crops, heavy metal element Transport And Transformation from soil, in Crop Root stem and leaf and fruit, thus the related heavy metal pollution causing crops, jeopardizes the health level of people.Therefore, the on-line measurement how quickly and easily realizing vegetable production base heavy metal content in soil becomes a vital realistic problem.
Such as application number is a kind of regional water environment heavy metal monitoring system of " 201320688736.3 ", and this system includes management system for monitoring and through multiple monitoring terminals associated for GPRS.Management system for monitoring center processor connects data transmit-receive, Data Analysis Services and database management module, is also connected with display/user terminal, and data transmit-receive module connects the data base of GPS, GIS and the heavy metals concentration storing each monitoring terminal.The main control module of each monitoring terminal includes flush bonding processor and clock and GPRS submodule, and detection module includes temperature sensor and heavy-metal electrochemical sensor array.During operation, the temperature of the surveyed water environment of monitoring terminal and heavy metal concentration are sent to management system for monitoring and store and show.Data Analysis Services module, by itself and standard value and historical data contrast, when jumping for polluted water or certain heavy metal concentration, is reported to the police.This system needs to be further improved in accuracy of detection and mode.
And for example application number is a kind of secondary application of sample concentration of heavy metal ion method of testing of " 201410291064.1 ", comprises the steps: water sample is carried out pretreatment；Preparation concentration of heavy metal ion is standard sample solution and the electrolyte of Cs；Adding volume in electrolysis bath is the electrolyte of V0, and adding volume in electrolysis bath is the water sample of Vx, obtains the peak height h1 of correspondence from current-voltage curve；Adding volume in electrolyte is the water sample of Vx, obtains the peak height h2 of correspondence from current-voltage curve；Adding volume in electrolysis bath is the standard sample of Vs, obtains the peak height h3 of correspondence from current-voltage curve；Concentration of heavy metal ion adopts 3 algorithms to calculate, and obtains concentration of heavy metal ion Cx and the average calculation error.This invention solves the problem of peak height-concentration curve only co-ordinate zero point, reduces the non-linear impact on measurement result of peak height-concentration curve.This invention is relatively costly, and complicated operation needs to be further improved in detection mode.
Summary of the invention
The technical problem to be solved is that the deficiency for background technology provides a kind of industry water quality content of beary metal intelligent monitor system.
The present invention solves above-mentioned technical problem by the following technical solutions:
A kind of industry water quality content of beary metal intelligent monitor system, comprise detection terminal and connected remote monitoring terminal, described detection terminal comprises micro controller module, ion concentration detection module, voltage amplifier, analog-digital converter, data transmission module and power module, described ion concentration detection module passes sequentially through voltage amplifier, analog-digital converter connects micro controller module, and described data transmission module and power module are connected on the corresponding port of micro controller module；Described remote monitoring terminal comprises controller module and difference connected radio frequency identification module, display module, data memory module；
Ion concentration detection module, is acquired for the analog voltage signal that mercury ion electrode is produced；
Voltage amplifier, for being amplified analog voltage signal processing；
Analog-digital converter, for the analog voltage signal after amplification is changed into digital signal, and then is uploaded to micro controller module；
Micro controller module, for being calculated processing the content of beary metal drawing water quality to be measured according to reception volume digital signal；
Data transmission module, transmits to remote monitoring terminal for the content of beary metal calculated by micro controller module；
Radio frequency identification module, for identifying the content of beary metal receiving data transmission module transmission, is simultaneously transmit to controller module；
Display module, for the content of beary metal that real-time display controller module receives；
Data memory module, for the content of beary metal that real-time storage controller module receives.
As the present invention a kind of industry water quality content of beary metal intelligent monitor system it is preferred that scheme, described micro controller module and controller module all adopt AVR series monolithic.
As the present invention a kind of industry water quality content of beary metal intelligent monitor system it is preferred that scheme, described ion concentration detection module adopts electrochemical sensor.
As the present invention a kind of industry water quality content of beary metal intelligent monitor system it is preferred that scheme, described data memory module adopts DDR3 memorizer.
As the present invention a kind of industry water quality content of beary metal intelligent monitor system it is preferred that scheme, described display module adopts LCD display.
The present invention adopts above technical scheme compared with prior art, has following technical effect that
1, the present invention can utilize the electrochemical response performance of potentiometry, and set up the mathematical model of electrode potential and ion concentration in conjunction with one-variable linear regression, it is achieved that the measurement of heavy metal ion concentration, display and storage；
2, the present invention utilizes the long-range reception of RF identification, completes effective intelligent remote monitoring, effectively raises accuracy of detection.
Detailed description of the invention
Below technical scheme is described in further detail:
A kind of industry water quality content of beary metal intelligent monitor system, comprise detection terminal and connected remote monitoring terminal, described detection terminal comprises micro controller module, ion concentration detection module, voltage amplifier, analog-digital converter, data transmission module and power module, described ion concentration detection module passes sequentially through voltage amplifier, analog-digital converter connects micro controller module, and described data transmission module and power module are connected on the corresponding port of micro controller module；Described remote monitoring terminal comprises controller module and difference connected radio frequency identification module, display module, data memory module；
Ion concentration detection module, is acquired for the analog voltage signal that mercury ion electrode is produced；
Voltage amplifier, for being amplified analog voltage signal processing；
Analog-digital converter, for the analog voltage signal after amplification is changed into digital signal, and then is uploaded to micro controller module；
Micro controller module, for being calculated processing the content of beary metal drawing water quality to be measured according to reception volume digital signal；
Data transmission module, transmits to remote monitoring terminal for the content of beary metal calculated by micro controller module；
Radio frequency identification module, for identifying the content of beary metal receiving data transmission module transmission, is simultaneously transmit to controller module；
Display module, for the content of beary metal that real-time display controller module receives；
Data memory module, for the content of beary metal that real-time storage controller module receives.
Wherein, described micro controller module and controller module all adopt AVR series monolithic, and described ion concentration detection module adopts electrochemical sensor, and described data memory module adopts DDR3 memorizer, and described display module adopts LCD display.
This system, based on ion selective membrane technology, utilizes the electrochemical response performance of potentiometry research ISE, and sets up the mathematical model of electrode potential and ion concentration in conjunction with one-variable linear regression.Based on AVR single chip and transport and placing device, devise hardware detecting circuit and detection program, it is achieved that the measurement of ion concentration, display and storage etc. are operated.
The principle of ion concentration detection module: ion-selective electrode is a kind of electromotive force type electrochemical sensor, the key component of ion-selective electrode is ion-selective membrane, ion-selective membrane will not occur electron exchange, but owing to there is ion concentration difference, the both side surface of ion-selective membrane can occur ion exchange, forming concentration difference membrane potential, it is as follows that membrane potential and the particular ion concentration in solution to be measured obey Nernst equation:
Nernst equation is the operation principle of ion-selective electrode.Ionic activity a due to ion-selective electrode internal reference solutionjKeeping constant, therefore membrane potential can be expressed as:
In formula: EMFor membrane potential (V)；R=8.314J/ (K mol) is gas constant；E0For initial potential, T=t+273.15 is absolute temperature (K)；F is Faraday constant (96487c/mol)；ZiFor ionic charge number；aiFor ionic activity to be measured, such transmembrane potential just becomes the function of ion concentration logarithm.
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 (5)
1. an industrial water quality content of beary metal intelligent monitor system, it is characterized in that: comprise detection terminal and connected remote monitoring terminal, described detection terminal comprises micro controller module, ion concentration detection module, voltage amplifier, analog-digital converter, data transmission module and power module, described ion concentration detection module passes sequentially through voltage amplifier, analog-digital converter connects micro controller module, and described data transmission module and power module are connected on the corresponding port of micro controller module；Described remote monitoring terminal comprises controller module and difference connected radio frequency identification module, display module, data memory module；
Ion concentration detection module, is acquired for the analog voltage signal that mercury ion electrode is produced；
Voltage amplifier, for being amplified analog voltage signal processing；
Analog-digital converter, for the analog voltage signal after amplification is changed into digital signal, and then is uploaded to micro controller module；
Micro controller module, for being calculated processing the content of beary metal drawing water quality to be measured according to reception volume digital signal；
Data transmission module, transmits to remote monitoring terminal for the content of beary metal calculated by micro controller module；
Radio frequency identification module, for identifying the content of beary metal receiving data transmission module transmission, is simultaneously transmit to controller module；
Display module, for the content of beary metal that real-time display controller module receives；
Data memory module, for the content of beary metal that real-time storage controller module receives.
2. a kind of industry water quality content of beary metal intelligent monitor system according to claim 1, it is characterised in that: described micro controller module and controller module all adopt AVR series monolithic.
3. a kind of industry water quality content of beary metal intelligent monitor system according to claim 1, it is characterised in that: described ion concentration detection module adopts electrochemical sensor.
4. a kind of industry water quality content of beary metal intelligent monitor system according to claim 1, it is characterised in that: described data memory module adopts DDR3 memorizer.
5. a kind of industry water quality content of beary metal intelligent monitor system according to claim 1, it is characterised in that: described display module adopts LCD display.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645321A (en) * | 2016-11-17 | 2017-05-10 | 江苏智石科技有限公司 | System for intelligent monitoring of soil mercury metal ionic concentration |
| CN106645365A (en) * | 2016-11-17 | 2017-05-10 | 江苏智石科技有限公司 | Industrial water quality heavy metal content monitoring system based on voltage-stabilized power supply |
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| UA25456U (en) * | 2007-03-28 | 2007-08-10 | Inst Of Molecular Biology And | Conductometric biological detector for determining concentration of heavy metal ions in aqueous solution |
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| JP2001501724A (en) * | 1995-12-19 | 2001-02-06 | エコール ポリテクニーク フェデラル ドゥ ローザンヌ | Micromachined ion-permeable composite membranes for amperometric ion detection |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106645321A (en) * | 2016-11-17 | 2017-05-10 | 江苏智石科技有限公司 | System for intelligent monitoring of soil mercury metal ionic concentration |
| CN106645365A (en) * | 2016-11-17 | 2017-05-10 | 江苏智石科技有限公司 | Industrial water quality heavy metal content monitoring system based on voltage-stabilized power supply |
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Application publication date: 20160720 |