CN113325153A - Water quality multi-parameter monitoring comprehensive information management system - Google Patents
Water quality multi-parameter monitoring comprehensive information management system Download PDFInfo
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Abstract
The invention discloses a water quality multi-parameter monitoring comprehensive information management system, which comprises a water quality monitoring sensor, a wireless network transmission module, an early warning, forecasting and monitoring module, an early warning and forecasting working module, a water quality monitoring working module, a basic information management module and a system maintenance management module; the water quality monitoring sensor is used for collecting various water quality monitoring parameter data in real time, and the wireless network transmission module is used for transmitting the various water quality monitoring parameter data collected by the water quality monitoring sensor to the water quality monitoring working module; the water quality monitoring sensor is connected with the wireless network transmission module, the early warning and forecasting monitoring module is connected with the early warning and forecasting working module, and the water quality monitoring working module is respectively connected with the wireless network transmission module, the early warning and forecasting monitoring module, the early warning and forecasting working module, the basic information management module and the system maintenance management module. The system is more scientific and objective in comprehensive evaluation of water quality, and effectively improves the accuracy of water quality monitoring.
Description
Technical Field
The invention relates to the field of environmental protection, in particular to a water quality multi-parameter monitoring comprehensive information management system.
Background
At present, the modern industry is developing more and more quickly, and the water quality problem is always the key environmental problem concerned globally. The water quality monitoring system is developed in the seventies of the twentieth century, and such systems are established in the countries of America, English, Japanese, French, Germany and the like. In the past, the collection of water body parameters usually uses manual mode to measure and record, and this mode is consuming time and hard, and the data of gathering have the contingency, also is not favorable to carrying out the integrated analysis to water quality of water. China is still in an exploration stage in the aspects of automatic water quality monitoring, mobile rapid analysis and early warning and forecasting system construction, and most of currently researched and developed surface water quality monitoring systems have the defects of high price, poor efficiency, incomplete functions and the like.
Disclosure of Invention
The invention discloses a water quality multi-parameter monitoring comprehensive information management system, which aims at solving the problems of high price, poor efficiency, incomplete functions and the like of the existing surface water quality monitoring system. The water quality monitoring sensor is arranged at each surface water monitoring station and comprises a temperature sensor, a turbidity sensor, a TDS sensor, a pH value sensor, a conductivity sensor, an ORP sensor, a water level sensor and the like, and meanwhile, the water quality monitoring sensor also comprises a conditioning circuit corresponding to each type of sensor, the water quality monitoring sensor is used for collecting various water quality monitoring parameter data in real time, and the water quality monitoring parameters comprise the temperature, the turbidity, the TDS value, the pH value, the conductivity, the ORP value, the water level and the like of surface water. The wireless network transmission module is used for transmitting various water quality monitoring parameter data collected by the water quality monitoring sensors of all the surface water monitoring stations to the water quality monitoring working module. The water quality monitoring sensor is connected with the wireless network transmission module, the early warning and forecasting monitoring module is connected with the early warning and forecasting working module, and the water quality monitoring working module is respectively connected with the wireless network transmission module, the early warning and forecasting monitoring module, the early warning and forecasting working module, the basic information management module and the system maintenance management module.
The water quality multi-parameter monitoring comprehensive information management system uses a B/S and C/S structure, adopts system engineering and software engineering technologies, realizes the design of a water quality multi-parameter monitoring comprehensive information software framework, software functions and an interface at a PC end, develops an intelligent identification, a tracing log and a triggered quality control model based on the remote transmission of real-time monitoring data of a surface water monitoring site, establishes a surface water environment monitoring data tracing system, and establishes an early warning index system of main monitoring indexes according to a surface water environment resource comprehensive evaluation algorithm to realize a water quality environment safety early warning and forecasting function.
The early warning, forecasting and monitoring module is used for realizing the functions of water quality forecasting, water quality early warning and water quality warning. The function interface of the early warning forecast monitoring module provides a list and panorama switching function, and historical collected data can be inquired according to time periods, parameters and inquiry conditions of monitoring sites.
The water quality forecast is a panoramic picture of different surface water monitoring sites, and can forecast water quality monitoring parameters of the surface water monitoring sites in a certain time period in the future.
The water quality early warning is realized by presetting floating intervals of early warning of different water quality monitoring parameters, setting time periods and water quality correction parameters by comprehensively considering seasonal rules and abnormal factor influences, setting standard exceeding early warning parameters according to the change rule of the water quality monitoring parameters in the same period, and predicting the possibility that the water quality monitoring parameters exceed the standard in a certain period in the future;
the water quality alarm is characterized in that seasonal rules and abnormal factor influences are comprehensively considered, threshold intervals for alarm of different water quality monitoring parameters are preset, time periods and water quality correction parameters are set, a highest threshold and a lowest threshold for exceeding the water quality are set according to the change rule of the water quality monitoring parameters in the same period, the water quality is comprehensively alarmed and judged, and the water quality monitoring parameters for judging alarm are displayed.
The water quality is comprehensively alarmed and judged, and P water quality monitoring parameter data collected by the i-th class water quality monitoring sensor in a certain time period are recorded as a column vector aiAnd i is 1,2, …, N is the total number of categories of the water quality monitoring sensors, and for the water quality monitoring parameter data collected by all the categories of the water quality monitoring sensors in the time period, the data is represented as a collected data array matrix a:
a＝[a1,a2,…,aN]，
and (3) calculating a cross-correlation matrix R of the acquired data array matrix a to obtain:
R＝aTa，
wherein, the element R of the ith row and the jth column of the cross-correlation matrix Rij＝aiaj TColumn vector ajRepresenting P water quality monitoring parameter data collected by a jth sensor; adopting a principal component analysis method to perform dimensionality reduction processing on all water quality monitoring parameter data acquired by all the sensors in all the categories in the time period, and extracting principal component components of the data, wherein the process specifically comprises the following steps:
performing characteristic decomposition on the cross-correlation matrix R to obtain N characteristic vectors and characteristic values, screening the characteristic vectors according to the size of the characteristic values, and screening out a characteristic matrix E consisting of M characteristic vectors larger than a certain threshold value as follows:
E＝[v1,v2,…,vM]，
wherein v iskThe k-th feature vector is represented, k is 1,2, …, M, and the feature vectors are column vectors; reconstructing the acquired data array matrix a by using the characteristic matrix E to obtain a principal component b of the acquired data array matrix as follows:
b＝ETa，
and (3) carrying out weighting processing on the principal component b by using the weight matrix omega to obtain a water quality monitoring parameter comprehensive evaluation value rho:
ρ＝ωb，
and judging the comprehensive evaluation value rho of the water quality monitoring parameters according to the highest threshold and the lowest threshold of the exceeding water quality, and judging the water quality monitoring parameter data collected in the time period to alarm when the rho is greater than the highest threshold of the exceeding water quality or less than the lowest threshold of the exceeding water quality. And according to relevant national standard data, aiming at minimizing the number of false alarms, and regularly optimizing and updating the weight matrix omega, the highest threshold value and the lowest threshold value of the overproof water quality.
The early warning and forecasting work module is used for finishing functions of basin temperature editing, basin flow rate editing, abnormal state editing, water quality overproof recording and water quality alarm recording, editing and processing water quality monitoring normal data, abnormal data and external influence data obtained by different surface water monitoring stations, acquiring regularity parameters through processing, and outputting the regularity parameters to the early warning and forecasting monitoring module as water quality correction parameters.
The temperature editing of the drainage basin is to comprehensively consider the influence factors of the surrounding environment of the surface water monitoring station, edit and process the temperature change interval and the upper and lower floating threshold values of a certain station within a certain time period; the flow velocity editing of the drainage basin is to comprehensively consider the influence of the topography of the periphery of the surface water monitoring station and edit and process the flow velocity change interval and the up-down floating threshold value of a certain station within a certain time period.
The water quality monitoring working module comprises a database for storing water quality monitoring information, the water quality monitoring working module is used for receiving water quality monitoring parameter data, collected by surface water monitoring stations, sent by the wireless network transmission module, manual introduction of the water quality monitoring data is achieved, the water quality monitoring data is automatically introduced, the water quality monitoring data is inquired, a water quality daily report, a water quality weekly report, a water quality monthly report and a water quality change analysis function are achieved, the water quality monitoring parameter data collected by different surface water monitoring stations are introduced into the database, and the data are analyzed and sorted. The method for importing the water quality monitoring parameter data into the database comprises the steps that the specified data are directly imported into the database through programming, and the data file in the EXCEL format is provided for importing the data.
The water quality change analysis is to check the water quality change trend and compare the water quality monitoring parameters of different surface water monitoring sites under the precondition of designated parameters, time, monitoring sites and the like.
The basic information management module is used for realizing the functions of water quality monitoring index standard editing, water quality monitoring index standard inquiry, water quality monitoring site editing, water quality monitoring site inquiry, water quality correction parameter editing, water quality correction parameter inquiry and standard data editing.
The editing of the water quality monitoring index standard is to realize the functions of water quality prediction, early warning and alarming, to inquire and compare the relevant threshold values defined as early warning and alarming in all water quality monitoring parameters with the relevant national standard data, to provide basis for water quality analysis, prediction and early warning, and to edit the relevant threshold values of early warning and alarming.
And editing the standard data, wherein the standard data is related national standard data quoted in the system.
The system maintenance management module realizes the functions of system personnel management and system personnel authority management, creates or deletes a user account, edits personal information of a user, and sets corresponding authority aiming at corresponding roles carried by specific users.
In the system personnel management, an administrator can manage and edit the personnel information of the user using the system, in the function, a function of 'leaving work' is added in a personalized mode, the personnel using the system are not easy to delete due to change, the previous working trace can be reserved by setting the function to 'leaving work', and real-time query is facilitated. The interface uses standard design patterns, list query environment + add/modify/delete functions, etc.
In the system personnel permission management, an administrator can manage and edit the personnel permission of a user using the system, and the use permission of a certain user can be checked or set in a check box of the system personnel by pulling down. The interface uses standard design patterns, list query environment + add/modify/delete functions, etc.
The invention has the beneficial effects that:
the system of the invention integrates software and hardware into a whole, and realizes a series of functional systematization of collecting water quality information to data query, real-time tracking, early warning and the like. The system can adapt to various terrain structures in China, can monitor important parameters such as pH value and conductivity in real time, realizes the determination of pollution in water resources, effectively tracks the change trend of pollutants in the water resources, can comprehensively evaluate the condition of water quality, makes the comprehensive evaluation of the water quality more scientific and objective, and effectively improves the accuracy of water quality monitoring.
Drawings
Fig. 1 is a block diagram of the water quality multi-parameter monitoring integrated information management system of the present invention.
Detailed Description
For a better understanding of the present disclosure, an example is given here.
As shown in figure 1, the invention discloses a water quality multi-parameter monitoring comprehensive information management system which comprises a water quality monitoring sensor, a wireless network transmission module, an early warning, forecasting and monitoring module, an early warning and forecasting working module, a water quality monitoring working module, a basic information management module and a system maintenance management module. The water quality monitoring sensor is arranged at each surface water monitoring station and comprises a temperature sensor, a turbidity sensor, a TDS sensor, a pH value sensor, a conductivity sensor, an ORP sensor, a water level sensor and the like, and meanwhile, the water quality monitoring sensor also comprises a conditioning circuit corresponding to each type of sensor, the water quality monitoring sensor is used for collecting various water quality monitoring parameter data in real time, and the water quality monitoring parameters comprise the temperature, the turbidity, the TDS value, the pH value, the conductivity, the ORP value, the water level and the like of surface water. The wireless network transmission module is used for transmitting various water quality monitoring parameter data collected by the water quality monitoring sensors of all the surface water monitoring stations to the water quality monitoring working module. The water quality monitoring sensor is connected with the wireless network transmission module, the early warning and forecasting monitoring module is connected with the early warning and forecasting working module, and the water quality monitoring working module is respectively connected with the wireless network transmission module, the early warning and forecasting monitoring module, the early warning and forecasting working module, the basic information management module and the system maintenance management module.
The water quality multi-parameter monitoring comprehensive information management system uses a B/S and C/S structure, adopts system engineering and software engineering technologies, realizes the design of a water quality multi-parameter monitoring comprehensive information software framework, software functions and an interface at a PC end, develops an intelligent identification, a tracing log and a triggered quality control model based on the remote transmission of real-time monitoring data of a surface water monitoring site, establishes a surface water environment monitoring data tracing system, and establishes an early warning index system of main monitoring indexes according to a surface water environment resource comprehensive evaluation algorithm to realize a water quality environment safety early warning and forecasting function.
The water quality multi-parameter monitoring integrated information management system is used for realizing functions of importing water quality monitoring parameters, logging the water quality monitoring parameters, inquiring the water quality monitoring parameters, counting the water quality monitoring parameters, analyzing the water quality monitoring parameters, identifying the water quality monitoring parameters, tracing the water quality monitoring parameters, calculating and acquiring water quality correction parameters, alarming, early warning, forecasting and the like of the water quality monitoring indexes.
The early warning, forecasting and monitoring module is used for checking alarm, early warning and forecasting information of the water quality monitoring indexes, and the early warning and forecasting working module is used for analyzing and evaluating real-time monitoring data of the surface water monitoring sites to obtain alarm, early warning and forecasting parameters of the water quality monitoring indexes and correcting the parameters in real time; the water quality monitoring working module is used for receiving real-time monitoring data of the surface water monitoring station and analyzing the real-time monitoring data; the basic information management module is used for storing and maintaining the standard data of the system; and the system maintenance management module is used for carrying out safety management on the system, setting and storing system personnel and corresponding authority, and backing up system data.
The system maintenance management module is used for displaying a system login interface, adopts a standard login interface, is divided into a title area, a menu area and a working area by a main interface, and consists of basic elements such as unit icons, unit names, software names, user names, passwords, login buttons and the like. A user enters a system operation main interface after logging in from a system login interface, all modules of the system are respectively displayed on the left side of the interface, and an early warning forecasting monitoring module, an early warning forecasting module, a water quality monitoring module, a basic information management module and a system maintenance management module are sequentially arranged from top to bottom.
Under five modules, detailed functions related under the modules are listed in a hierarchy, and the detailed functions of the current module can be expanded or contracted by clicking a contraction switch beside the module. Clicking on each detailed function may browse or edit the detailed information to the right of the interface. The password for the initial login of the user is generally the initial password set by the administrator, and the login password of the current user can be modified and set.
The early warning, forecasting and monitoring module is used for realizing the functions of water quality forecasting, water quality early warning and water quality warning, and has the functions of checking alarm information which appears at different monitoring sites of surface water, setting early warning environment, checking early warning results and checking forecasting results by using the system by all levels of users. The function interface of the early warning forecast monitoring module provides a list and panorama switching function, and historical collected data can be inquired according to time periods, parameters and inquiry conditions of monitoring sites. The panoramic image of the functional interface of the early warning, forecasting and monitoring module provides information of all monitoring points, including physical information, early warning and forecasting and historical record synchronization comparison information, and the list of the functional interface of the early warning, forecasting and monitoring module records early warning and forecasting information, so that the visual early warning and forecasting function of water quality environment safety is finally realized.
The water quality forecast is a panoramic picture of different surface water monitoring sites, and can forecast water quality monitoring parameters of the surface water monitoring sites in a certain time period in the future.
The water quality early warning is realized by presetting floating intervals of early warning of different water quality monitoring parameters, setting time periods and water quality correction parameters by comprehensively considering seasonal rules and abnormal factor influences, setting standard exceeding early warning parameters according to the change rule of the water quality monitoring parameters in the same period, and predicting the possibility that the water quality monitoring parameters exceed the standard in a certain period in the future;
the water quality alarm is characterized in that seasonal rules and abnormal factor influences are comprehensively considered, threshold intervals for alarm of different water quality monitoring parameters are preset, time periods and water quality correction parameters are set, a highest threshold and a lowest threshold for exceeding the water quality are set according to the change rule of the water quality monitoring parameters in the same period, the water quality is comprehensively alarmed and judged, and the water quality monitoring parameters for judging alarm are displayed.
The comprehensive alarm evaluation is carried out on the water quality, and P water quality monitoring parameter data collected by the i-th class sensor in a certain time period are recorded as a column vector aiAnd i is 1,2, …, N is the total number of sensor classes, and for all water quality monitoring parameter data collected by all the sensor classes in the time period, the data is expressed as a collected data array matrix a:
a＝[a1,a2,…,aN]，
and (3) calculating a cross-correlation matrix R of the acquired data array matrix a to obtain:
R＝aTa，
wherein, the element R of the ith row and the jth column of the cross-correlation matrix Rij＝aiaj TColumn vector ajRepresenting P water quality monitoring parameter data collected by a jth sensor; aiming at the problem that false alarms easily occur in alarm results due to the fact that the types of water quality detection variables are more and the correlation exists among the variables, in order to improve the accuracy of alarm judgment, a principal component analysis method is adopted to analyze all water quality monitoring parameter data acquired by all types of sensors in the time periodPerforming dimensionality reduction treatment, and extracting principal component components of the original image, wherein the process specifically comprises the following steps:
performing characteristic decomposition on the cross-correlation matrix R to obtain N characteristic vectors and characteristic values, screening the characteristic vectors according to the size of the characteristic values, and screening out a characteristic matrix E consisting of M characteristic vectors larger than a certain threshold value as follows:
E＝[v1,v2,…,vM]，
wherein v iskThe k-th feature vector is represented, k is 1,2, …, M, and the feature vectors are column vectors; reconstructing the acquired data array matrix a by using the characteristic matrix E to obtain a principal component b of the acquired data array matrix as follows:
b＝ETa，
and (3) carrying out weighting processing on the principal component b by using the weight matrix omega to obtain a water quality monitoring parameter comprehensive evaluation value rho:
ρ＝ωb，
and judging the comprehensive evaluation value rho of the water quality monitoring parameters according to the highest threshold and the lowest threshold of the exceeding water quality, and judging the water quality monitoring parameter data collected in the time period to alarm when the rho is greater than the highest threshold of the exceeding water quality or less than the lowest threshold of the exceeding water quality. And according to relevant national standard data, aiming at minimizing the number of false alarms, and regularly optimizing and updating the weight matrix omega, the highest threshold value and the lowest threshold value of the overproof water quality.
The early warning and forecasting work module is used for finishing functions of basin temperature editing, basin flow rate editing, abnormal state editing, water quality overproof recording and water quality alarm recording, editing and processing water quality monitoring normal data, abnormal data and external influence data obtained by different surface water monitoring stations, acquiring regularity parameters through processing, and outputting the regularity parameters to the early warning and forecasting monitoring module as water quality correction parameters.
The temperature editing of the drainage basin is to comprehensively consider the influence factors of the surrounding environment of the surface water monitoring station, edit and process the temperature change interval and the upper and lower floating threshold values of a certain station within a certain time period; the flow velocity editing of the drainage basin is to comprehensively consider the influence of the topography of the periphery of the surface water monitoring station and edit and process the flow velocity change interval and the up-down floating threshold value of a certain station within a certain time period.
The water quality monitoring working module comprises a database for storing water quality monitoring information and is used for receiving water quality monitoring parameter data collected by surface water monitoring stations sent by a wireless network transmission module, realizing the functions of manual introduction of the water quality monitoring data, automatic introduction of the water quality monitoring data, inquiry of the water quality monitoring data, daily water quality report, periodic water quality report, monthly water quality report and water quality change analysis, introducing the water quality monitoring parameter data collected by different surface water monitoring stations into the database, and analyzing and sorting the data. The method for importing the water quality monitoring parameter data into the database comprises the steps that the specified data are directly imported into the database through programming, and the data file in the EXCEL format is provided for importing the data. The imported data can be analyzed, sorted, printed, exported and the like according to actual working requirements.
For the daily, weekly and monthly reports of water quality, corresponding query conditions are checked in check boxes according to the actual requirements of users, the daily, weekly and monthly reports of water quality are automatically generated, and the daily, weekly and monthly reports of water quality can be printed and exported. For the query of the water quality monitoring data, all the water quality monitoring data can be queried in the database, but the user right is only limited to viewing and can not be edited.
The water quality change analysis is to check the water quality change trend under the precondition of appointed parameters, time, monitoring sites and the like, to compare the water quality monitoring parameters of different surface water monitoring sites, and the analysis result can be visually displayed in the form of a curve and a pie chart according to the actual working requirement.
The basic information management module is used for realizing the functions of water quality monitoring index standard editing, water quality monitoring index standard inquiry, water quality monitoring site editing, water quality monitoring site inquiry, water quality correction parameter editing, water quality correction parameter inquiry and standard data editing, mainly editing and inquiring the water quality monitoring indexes according to the relevant national standards, and simultaneously can increase and reduce the monitoring sites of surface water.
The editing of the water quality monitoring index standard is to realize the functions of water quality prediction, early warning and alarming, to inquire and compare the relevant threshold values defined as early warning and alarming in all water quality monitoring parameters with the relevant national standard data, to provide basis for water quality analysis, prediction and early warning, and to edit the relevant threshold values of early warning and alarming.
The standard data is related national standard data quoted in the system, and is input once in software and permanently used, so that the standard data can be edited.
The system maintenance management module realizes the functions of system personnel management and system personnel authority management, creates or deletes a user account, edits personal information of a user, and sets corresponding authority aiming at corresponding roles carried by specific users.
In the system personnel management, an administrator can manage and edit the personnel information of the user using the system, in the function, a function of 'leaving work' is added in a personalized mode, the personnel using the system are not easy to delete due to change, the previous working trace can be reserved by setting the function to 'leaving work', and real-time query is facilitated. The interface uses standard design patterns, list query environment + add/modify/delete functions, etc.
In the system personnel permission management, an administrator can manage and edit the personnel permission of a user using the system, and the use permission of a certain user can be checked or set in a check box of the system personnel by pulling down. The interface uses standard design patterns, list query environment + add/modify/delete functions, etc.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (8)
1. A water quality multi-parameter monitoring comprehensive information management system is characterized by comprising a water quality monitoring sensor, a wireless network transmission module, an early warning, forecasting and monitoring module, an early warning and forecasting working module, a water quality monitoring working module, a basic information management module and a system maintenance management module; the water quality monitoring sensors are arranged at each surface water monitoring station, the water quality monitoring sensors are used for collecting various water quality monitoring parameter data in real time, and the wireless network transmission module is used for transmitting the various water quality monitoring parameter data collected by the water quality monitoring sensors at each surface water monitoring station to the water quality monitoring working module; the water quality monitoring sensor is connected with the wireless network transmission module, the early warning and forecasting monitoring module is connected with the early warning and forecasting working module, and the water quality monitoring working module is respectively connected with the wireless network transmission module, the early warning and forecasting monitoring module, the early warning and forecasting working module, the basic information management module and the system maintenance management module.
2. The integrated information management system for multi-parameter monitoring of water quality as claimed in claim 1, wherein the water quality monitoring sensors comprise temperature sensors, turbidity sensors, TDS sensors, pH sensors, conductivity sensors, ORP sensors, water level sensors, and conditioning circuits corresponding to the sensors, and the water quality monitoring parameters comprise temperature, turbidity, TDS value, pH value, conductivity, ORP value, and water level of surface water.
3. The water quality multi-parameter monitoring integrated information management system as claimed in claim 1, wherein the early warning, forecasting and monitoring module is used for realizing the functions of water quality forecasting, water quality early warning and water quality alarming; the function interface of the early warning forecast monitoring module provides a list and panorama switching function, and can inquire historical collected data according to time periods, parameters and inquiry conditions of monitoring sites;
the water quality forecast is to provide a panoramic view of different surface water monitoring sites and forecast water quality monitoring parameters of the surface water monitoring sites in a certain time period in the future;
the water quality early warning is realized by presetting floating intervals of early warning of different water quality monitoring parameters, setting time periods and water quality correction parameters by comprehensively considering seasonal rule influence, setting standard exceeding early warning parameters according to the change rule of the water quality monitoring parameters in the same period, and predicting the possibility that the water quality monitoring parameters exceed the standard in a certain period in the future;
the water quality alarm is characterized in that seasonal rule influence is comprehensively considered, threshold intervals for alarm of different water quality monitoring parameters are preset, time periods and water quality correction parameters are set, a highest threshold and a lowest threshold of exceeding water quality are set according to a change rule of the water quality monitoring parameters in the same period, the water quality is comprehensively alarmed and judged, and the water quality monitoring parameters for judging alarm are displayed.
4. The water quality multi-parameter monitoring integrated information management system according to claim 3,
the water quality is comprehensively alarmed and judged, and P water quality monitoring parameter data collected by the i-th class water quality monitoring sensor in a certain time period are recorded as a column vector aiAnd i is 1,2, …, N is the total number of categories of the water quality monitoring sensors, and the collected data array matrix a represents the water quality monitoring parameter data collected by all categories of water quality monitoring sensors in the time period:
a＝[a1,a2,…,aN]，
and (3) calculating a cross-correlation matrix R of the acquired data array matrix a to obtain:
R＝aTa，
wherein, the element R of the ith row and the jth column of the cross-correlation matrix Rij＝aiaj TColumn vector ajRepresenting P water quality monitoring parameter data collected by a jth water quality monitoring sensor; adopting a principal component analysis method to perform dimensionality reduction processing on all water quality monitoring parameter data acquired by all the sensors in all the categories in the time period, and extracting principal component components of the data, wherein the process specifically comprises the following steps:
performing characteristic decomposition on the cross-correlation matrix R to obtain N characteristic vectors and characteristic values, screening the characteristic vectors according to the size of the characteristic values, and screening out a characteristic matrix E consisting of M characteristic vectors larger than a certain threshold value as follows:
E＝[v1,v2,…,vM]，
wherein v iskThe k-th feature vector is represented, k is 1,2, …, M, and the feature vectors are column vectors; reconstructing the acquired data array matrix a by using the characteristic matrix E to obtain a principal component b of the acquired data array matrix as follows:
b＝ETa，
and (3) carrying out weighting processing on the principal component b by using the weight matrix omega to obtain a water quality monitoring parameter comprehensive evaluation value rho:
ρ＝ωb，
judging a comprehensive evaluation value rho of the water quality monitoring parameters according to a highest threshold and a lowest threshold of exceeding the water quality, and judging the water quality monitoring parameter data collected in the time period to alarm when the rho is greater than the highest threshold of exceeding the water quality or less than the lowest threshold of exceeding the water quality; and according to relevant national standard data, aiming at minimizing the number of false alarms, and regularly optimizing and updating the weight matrix omega, the highest threshold value and the lowest threshold value of the overproof water quality.
5. The water quality multi-parameter monitoring integrated information management system according to claim 1,
the early warning and forecasting work module is used for completing functions of basin temperature editing, basin flow rate editing, abnormal state editing, water quality overproof recording and water quality alarm recording, editing and processing water quality monitoring normal data, abnormal data and external influence data obtained by different surface water monitoring stations, acquiring regularity parameters through processing, and outputting the regularity parameters to the early warning and forecasting monitoring module as water quality correction parameters;
the temperature editing of the drainage basin is to comprehensively consider the influence factors of the surrounding environment of the surface water monitoring station, edit and process the temperature change interval and the upper and lower floating threshold values of a certain station within a certain time period; the flow velocity editing of the drainage basin is to comprehensively consider the influence of the topography of the periphery of the surface water monitoring station and edit and process the flow velocity change interval and the up-down floating threshold value of a certain station within a certain time period.
6. The water quality multi-parameter monitoring integrated information management system according to claim 1,
the water quality monitoring working module comprises a database for storing water quality monitoring information, and is used for receiving water quality monitoring parameter data which are sent by a wireless network transmission module and collected by surface water monitoring stations, realizing the functions of manual introduction of the water quality monitoring data, automatic introduction of the water quality monitoring data, query of the water quality monitoring data, daily water quality report, weekly water quality report, monthly water quality report and water quality change analysis, introducing the water quality monitoring parameter data collected by different surface water monitoring stations into the database, and analyzing and sorting the data; the method for importing the water quality monitoring parameter data into the database comprises the steps that one method is to directly import the specified data into the database through programming, and the other method is to import the provided data file in the EXCEL format;
the water quality change analysis is to check the water quality change trend under the precondition of appointed parameters, time and monitoring sites, and compare the water quality monitoring parameters of different surface water monitoring sites.
7. The water quality multi-parameter monitoring integrated information management system according to claim 1,
the basic information management module is used for realizing the functions of water quality monitoring index standard editing, water quality monitoring index standard inquiry, water quality monitoring site editing, water quality monitoring site inquiry, water quality correction parameter editing, water quality correction parameter inquiry and standard data editing;
the editing of the water quality monitoring index standard is to realize the functions of water quality prediction, early warning and alarming, to inquire and compare the relevant threshold defined as early warning and alarming in all water quality monitoring parameters with the relevant national standard data, to provide basis for water quality analysis and prediction early warning, and to edit the relevant threshold of early warning and alarming;
and editing the standard data, wherein the standard data is related national standard data quoted in the system.
8. The water quality multi-parameter monitoring integrated information management system according to claim 1,
the system maintenance management module realizes the functions of system personnel management and system personnel authority management, creates or deletes a user account, edits personal information of a user, and sets corresponding authority aiming at corresponding roles carried by specific users.
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