CN107037192B - A kind of effective multi objective Water Quality Evaluation system - Google Patents
A kind of effective multi objective Water Quality Evaluation system Download PDFInfo
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Abstract
A kind of effective multi objective Water Quality Evaluation system, characterized in that including sensor group, data transmission module and monitoring center;The sensor group for acquiring the various parameters of institute's monitoring section water quality in real time;The data transmission module, for the data collected to be transferred to monitoring center;The monitoring center is used to that the data received handle and then be carried out the assessment of water quality condition.The invention has the benefit that acquiring each water quality parameter for influencing water quality condition in real time by sensor group, by carrying out processing and the calculating of respective weights to the water quality parameter collected, realize the assessment of water quality condition, to understand current water quality condition in real time, effective monitoring and prevention to water pollution are realized.
Description
Technical field
The invention is related to water quality monitoring field, and in particular to a kind of effective multi objective Water Quality Evaluation system.
Background technique
With the development of modern industrial technology, caused by environmental pollution get worse, especially the random row of trade effluent is disorderly
Put so that current lake river etc. receives serious pollution, water be it is for the survival of mankind basic, therefore, prevention water is dirty
Dye is our current more urgent tasks, and water quality monitoring is the main foundation of Water Quality Evaluation and water prevention and cure of pollution, with water body
Pollution problem is got worse, and dynamic monitoring and the assessment to water pollution are to find water pollution early and prevent the effective of water pollution
Measure.
The defects of there is process complexity more in traditional water quality monitoring method, the period is long and assessment result is inaccurate, for this
A little problems, the present invention provide a kind of effective multi objective Water Quality Evaluation system, and being acquired in real time by sensor group influences water quality
Water quality parameter, and by carrying out processing and weight calculation to the water quality parameter collected, realize the assessment of water quality condition, in real time
Understand the situation of change of water quality, realizes effective monitoring to water pollution.
Summary of the invention
In view of the above-mentioned problems, the present invention is intended to provide a kind of effective multi objective Water Quality Evaluation system.
The purpose of the invention is achieved through the following technical solutions:
A kind of effective multi objective Water Quality Evaluation system, including sensor group, data transmission module and monitoring center;
(1) sensor group, for acquiring the various water quality indicators of monitoring section water quality in real time;
(2) data transmission module, for the data collected to be transferred to monitoring center;
(3) monitoring center, including data processing unit, weight calculation unit, Water Quality Evaluation unit and data storage cell,
The data that the data processing unit is used to collect sensor group are handled, and guarantee the integrality of data, the power
Re-computation unit is used to determine the weight of each water quality indicator according to difference of the different water quality indicators to water quality impact degree, described
Water Quality Evaluation unit obtains Water Quality Evaluation as a result, and sending the assessment result for data to calculate to treated
It is stored to data storage cell.
The invention the utility model has the advantages that propose a kind of effective multi objective Water Quality Evaluation system, it is real to pass through sensor group
When acquisition influence each water quality parameter of water quality condition, by carrying out processing and respective weights to the water quality parameter collected
It calculates, realizes the assessment of water quality condition, to understand current water quality condition in real time, realize effective monitoring to water pollution and prevent
Model.
Detailed description of the invention
Innovation and creation are described further using attached drawing, but the embodiment in attached drawing does not constitute and appoints to the invention
What is limited, for those of ordinary skill in the art, without creative efforts, can also be according to the following drawings
Obtain other attached drawings.
Fig. 1 is schematic structural view of the invention;
Fig. 2 is the structural schematic diagram of monitoring center;
Appended drawing reference:
Sensor group 1;Data transmission module 2;Monitoring center 3;Locating module 4;Data processing unit 31;Weight calculation list
Member 32;Water Quality Evaluation unit 33;Data storage cell 34.
Specific embodiment
The invention will be further described with the following Examples.
Referring to Fig. 1 and Fig. 2, a kind of effective multi objective Water Quality Evaluation system of the present embodiment, including sensor group 1, number
According to transmission module 2 and monitoring center 3;
(1) sensor group 1, for acquiring the various water quality indicators in monitoring section waters in real time;
(2) data transmission module 2, for the data collected to be transferred to monitoring center;
(3) monitoring center 3, including data processing unit 31, weight calculation unit 32, Water Quality Evaluation unit 33 and data are deposited
Storage unit 34, the data that the data processing unit 31 is used to collect sensor group are handled, and guarantee the complete of data
Whole property, the weight calculation unit 32 are used to determine that each water quality refers to according to difference of the different water quality indicators to water quality impact degree
Target weight, the Water Quality Evaluation unit 33 obtain Water Quality Evaluation as a result, and by institute for data to calculate to treated
It states assessment result and is sent to data storage cell 34 and stored.
Preferably, the water quality indicator includes water temperature, turbidity, pH value, dissolved oxygen concentration and chlorophyll concentration.
It preferably, further include locating module 4, the locating module 4 is connect with sensor group 1, is used for alignment sensor group 1
In each sensor position, and send monitoring center 3 for location information.
This preferred embodiment proposes a kind of effective multi objective Water Quality Evaluation system, acquires influence in real time by sensor group
Each water quality parameter of water quality condition is realized by carrying out processing and the calculating of respective weights to the water quality parameter collected
The assessment of water quality condition realizes the effective monitoring and prevention to water pollution to understand current water quality condition in real time.
Preferably, the data that the data processing unit 31 is used to collect sensor group are tested, and verifying is adopted
Whether in the normal range to collect data amount check in the period, if beyond data exception is determined if normal range (NR), i.e., using making by oneself
Adopted data xiIt is substituted, specifically:
Defining the data amount check that normal acquisition arrives in sensor group collection period is ko, k is the data of system allowable error
Number, kiFor the real data number collected in the sensor group i period, then judge whether is data amount check in collection period
Normal formula are as follows:
For the data exception situation collected in the i period, self-defining data x is utilizediTo the data lacked in the i period
It is supplemented, then self-defining data xiCalculation formula are as follows:
In formula, xi-1、xi+1、xi-2And xi+2The data value collected in respectively period i-1, i+1, i-2 and i+2 it is equal
Value, μ and β are respectively (xi-1+xi+1) and (xi-2+xi+2) weight, and+β=1 μ.
This preferred embodiment verifies the data amount check in collection period by testing to the water quality parameter collected
Whether in the normal range, data exception is judged if beyond normal range (NR), carry out the amendment of data, ensure that data
Integrality, the mistake of further evaluation result caused by avoiding because of shortage of data, provides the accuracy of Water Quality Evaluation system.
Preferably, the weight calculation unit 32 is used for true according to difference of the different water quality indicators to water quality impact degree
The weight of fixed each water quality indicator, specifically includes:
A. the data of each water quality indicator collected are normalized, are specifically included:
In formula, h is the number of types of the water quality indicator of acquisition, and r is the corresponding sample data number of each water quality indicator, anmTable
Show value of the nth data in m-th of water quality indicator;
B. according to the data b after normalizationnmCalculate the entropy weight u of m-th of indexm, its calculation formula is:
In formula, h is the number of types of the water quality indicator of acquisition, and r is the corresponding sample data number of each water quality indicator, qmFor
The weight of water quality indicator m, umFor the entropy weight of water quality indicator m;
C. the weight to water quality indicator in Water Quality Evaluation carries out overall merit, and the weight for defining water quality indicator is vm, then
The weight v of water quality indicator mmCalculation formula are as follows:
In formula, zmFor the subjective weight that expert assigns each water quality indicator according to data over the years, umTo calculate resulting water quality
The entropy weight of index m, h are the number of types of the water quality indicator of acquisition, vmThe weight for being water quality indicator in Water Quality Evaluation.
This preferred embodiment by comprehensively consider each water quality indicator expert assign subjective weight and each index entropy weight,
The calculating that weight is carried out to water quality indicator effectively avoids the method and practical feelings that weight is individually assigned using entropy weight or expert
Condition deviation is biggish as a result, effectively highlight value of each water quality indicator in Water Quality Evaluation, increases the standard of assessment result
True property.
Preferably, the Water Quality Evaluation unit 33 carries out water using weight corresponding to treated data and water quality indicator
Matter assessment, defines Water Quality Evaluation index si, then Water Quality Evaluation index siCalculation formula are as follows:
In formula, t (i) indicates the mean value of the water temperature data collected within the i period, vtIt is corresponding water temperature index in water
Weight in matter assessment, z (i) indicate the mean value of the turbidity data collected within the i period, vzIndicate corresponding turbidity index
Weight in Water Quality Evaluation, o (i) indicate the mean value of the dissolved oxygen concentration collected within the i period, voIndicate corresponding molten
Weight of the oxygen concentration index in Water Quality Evaluation is solved, y (i) indicates the mean value of the chlorophyll concentration collected within the i period, vy
Indicate weight of the corresponding chlorophyll concentration index in Water Quality Evaluation, T0、Z0、O0And Y0Respectively indicate the optimum water temperature in waters
Value, turbidity value, dissolved oxygen concentration and chlorophyll concentration;
Water quality perfect condition value ρ is defined, according to calculating when resulting Water Quality Evaluation parameter value judges current collection period
Water quality condition, specifically:
In formula, siTo calculate resulting Water Quality Evaluation parameter value, ρ is the perfect condition value of water quality.
This preferred embodiment has comprehensively considered the weight of each water quality parameter value and water quality parameter when evaluating water quality
Water quality condition is assessed, different quality parameter is solved to water quality impact degree different problems, increases assessment result
Accuracy.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (5)
1. a kind of effective multi objective Water Quality Evaluation system, characterized in that including in sensor group, data transmission module and monitoring
The heart;
(1) sensor group, for acquiring the various water quality indicators in institute's monitoring section waters in real time;
(2) data transmission module, for the data collected to be transferred to monitoring center;
(3) monitoring center, including data processing unit, weight calculation unit, Water Quality Evaluation unit and data storage cell, it is described
The data that data processing unit is used to collect sensor group are tested, and the data collected in collection period are verified
In the normal range whether number, data exception is determined if beyond normal range (NR), that is, utilizes self-defining data xiIt carries out scarce
The supplement of data is lost, specifically:
Defining the data amount check that normal acquisition obtains in sensor group collection period is ko, k is the data of system allowable error
Number, kiFor the real data number collected in the sensor group i period, then judge data amount check in collection period whether just
Normal formula are as follows:
For the data exception situation collected in the i period, self-defining data x is utilizediTo the data of the missing in the i period into
Row supplements, then self-defining data xiCalculation formula are as follows:
In formula, xi-1、xi+1、xi-2And xi+2The mean value of the data value collected in respectively period i-1, i+1, i-2 and i+2, μ
It is respectively (x with βi-1+xi+1) and (xi-2+xi+2) weight, and+β=1 μ;The weight calculation unit is used for according to different water
Matter index determines the weight of each water quality indicator to the difference of water quality impact degree, and the Water Quality Evaluation unit is used for treated
Data are calculated, and obtain Water Quality Evaluation as a result, and sending data storage cell for the assessment result and storing.
2. a kind of effective multi objective Water Quality Evaluation system according to claim 1, characterized in that the water quality indicator packet
Include water temperature, turbidity, pH value, dissolved oxygen concentration and chlorophyll concentration.
3. a kind of effective multi objective Water Quality Evaluation system according to claim 2, characterized in that further include positioning mould
Block, the locating module are connect with sensor group, for the position of each sensor in alignment sensor group, and by location information
It is sent to monitoring center.
4. a kind of effective multi objective Water Quality Evaluation system according to claim 3, characterized in that weight calculation unit is used
In the weight for determining each water quality indicator according to difference of the different water quality indicators to water quality impact degree, specifically include:
A. the data of each water quality indicator collected are normalized, are specifically included:
In formula, h is the number of types of the water quality indicator of acquisition, and r is the corresponding sample data number of each water quality indicator, anmIndicate the
Value of the n data in m-th of water quality indicator;
B. according to the data b after normalizationnmCalculate the entropy weight u of m-th of indexm, its calculation formula is:
In formula, h is the number of types of the water quality indicator of acquisition, and r is the corresponding sample data number of each water quality indicator, qmFor water quality
The weight of index m, umFor the entropy weight of water quality indicator m;
C. the weight to water quality indicator in Water Quality Evaluation carries out overall merit, and the weight for defining water quality indicator is vm, then water quality refers to
Mark the weight v of mmCalculation formula are as follows:
In formula, zmFor the subjective weight that expert assigns each water quality indicator according to data over the years, umTo calculate resulting water quality indicator
The entropy weight of m, h are the number of types of the water quality indicator of acquisition, vmThe weight for being water quality indicator in Water Quality Evaluation.
5. a kind of effective multi objective Water Quality Evaluation system according to claim 4, characterized in that Water Quality Evaluation unit benefit
The weight corresponding to treated data and water quality indicator carries out Water Quality Evaluation, defines Water Quality Evaluation index si, then water quality is commented
Estimate index siCalculation formula are as follows:
In formula, t (i) indicates the mean value of the water temperature data collected within the i period, vtIt is commented for corresponding water temperature index in water quality
Weight in estimating, z (i) indicate the mean value of the turbidity data collected within the i period, vzIndicate corresponding turbidity index in water
Weight in matter assessment, o (i) indicate the mean value of the dissolved oxygen concentration collected within the i period, voIndicate corresponding dissolved oxygen
Weight of the concentration index in Water Quality Evaluation, y (i) indicate the mean value of the chlorophyll concentration collected within the i period, vyIt indicates
Weight of the corresponding chlorophyll concentration index in Water Quality Evaluation, T0、Z0、O0And Y0Respectively indicate the optimum water temperature value, turbid in waters
Angle value, dissolved oxygen concentration and chlorophyll concentration;
Water quality perfect condition value ρ is defined, according to the water quality calculated when resulting Water Quality Evaluation parameter value judges current collection period
State, specifically:
In formula, siTo calculate resulting Water Quality Evaluation parameter value, ρ is the perfect condition value of water quality.
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CN108535433A (en) * | 2018-03-06 | 2018-09-14 | 陈艳粉 | A kind of Water Quality Evaluation system based on wireless sensor network |
CN108872516A (en) * | 2018-07-31 | 2018-11-23 | 梧州市兴能农业科技有限公司 | A kind of water quality monitoring early warning system |
CN109297968A (en) * | 2018-11-21 | 2019-02-01 | 河南工业职业技术学院 | A kind of method of generation face domain water quality monitoring result |
CN109655594A (en) * | 2018-12-30 | 2019-04-19 | 杭州铭展网络科技有限公司 | A kind of water quality acquisition methods |
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