CN-121479623-B - Dynamic water quality detection method for water supply pipeline for realizing linkage control of rural water supply device

CN121479623BCN 121479623 BCN121479623 BCN 121479623BCN-121479623-B

Abstract

The application relates to the technical field of dynamic water quality detection, in particular to a dynamic water quality detection method for a water supply pipeline for realizing linkage control of a rural water supply device, which comprises the steps of arranging a plurality of monitoring points along the line between a main pipeline and the tail end of the pipeline, and monitoring water quality data and water flow in real time; the method comprises the steps of calculating a water quality fluctuation coefficient according to the water quality data and the change condition of water flow in a water supply pipeline, calculating a water quality disturbance coefficient according to the mutation water quality fluctuation condition, constructing the water quality coefficient of a sample to be detected in each monitoring section by utilizing the water quality fluctuation coefficient of the sample to be detected in each moment and the water quality disturbance coefficient of each period in each monitoring section, and judging the water quality detection condition by combining a preset water quality coefficient threshold value. The application aims to dynamically monitor the time-space variation characteristics of water quality in a water supply pipeline and improve the accuracy of water quality detection.

Inventors

SONG QI
ZHANG LIPENG
MA MENG
ZHANG YUPING
MA JIAN
ZHANG RONGXIN
LI JIANING
GAO MINGJIE

Assignees

辽宁省城乡建设规划设计院有限责任公司

Dates

Publication Date: 20260508
Application Date: 20260108

Claims (10)

1. The dynamic water quality detection method for the water supply pipeline for realizing linkage control of the rural water supply device is characterized by comprising the following steps of: arranging a plurality of monitoring points along the main pipeline and the peripheral line of the pipeline, and monitoring water quality data and water flow in real time; Constructing a water quality fluctuation coefficient of any monitoring section at each moment based on the water quality fluctuation characteristics of any monitoring section at each moment and the water quality fluctuation characteristic differences of any monitoring section at each moment when water quality flows in all the adjacent monitoring sections before the water quality fluctuation characteristics of any monitoring section at each moment; the method comprises the steps of respectively acquiring a characteristic vector of a data acquisition sample corresponding to a period of each preset period in all monitoring sections, constructing a sequence consisting of all water quality fluctuation coefficients of each preset period, analyzing abnormal scores of the characteristic vectors of all samples to screen out normal samples, and acquiring fitting curves of all samples in each monitoring section and all normal samples constructed by the water quality fluctuation coefficients; constructing a water quality disturbance coefficient of each period by utilizing the abnormal score of the characteristic vector of the corresponding sample of each period, the difference measurement between the fitting curves constructed by all samples of each monitoring section and the normal samples and the decision coefficient of the fitting curve; And constructing the water quality coefficient of the sample to be detected in each monitoring section by utilizing the water quality fluctuation coefficient of the sample to be detected in each moment and the water quality disturbance coefficient of each period in each monitoring section, and combining a preset water quality coefficient threshold value to judge the water quality detection condition.
2. The dynamic water quality detection method for a water supply pipeline for realizing linkage control of a rural water supply device according to claim 1, wherein the water quality data comprises turbidity, residual chlorine and metal content.
3. The method for dynamically detecting water quality of water supply pipeline for realizing linkage control of rural water supply device according to claim 1, wherein the water quality fluctuation coefficient of any monitoring section at each moment is positively correlated with the water quality fluctuation characteristic of any monitoring section at each moment, and the average difference of the water quality fluctuation characteristics of any monitoring section at each moment when water quality of any monitoring section flows in all adjacent monitoring sections before the water quality fluctuation coefficient of any monitoring section at each moment is positively correlated.
4. A method for dynamically detecting water quality of a water supply pipeline for realizing linkage control of a rural water supply device according to claim 3, wherein the water quality fluctuation characteristic is determined by standard deviation and average value of various water quality data in any monitoring section at each moment.
5. The method for dynamically detecting water quality of water supply pipeline for realizing linkage control of rural water supply device according to claim 4, wherein on the basis of determining water quality fluctuation characteristics by using standard deviation and average value, the standard deviation and average value of corresponding water quality data are weighted by using correlation measurement between trend sequence of water flow in any monitoring section at each moment and trend sequence of various water quality data.
6. The method for dynamically detecting water quality of water supply pipeline for implementing linkage control of rural water supply device according to claim 5, wherein when the number of elements between trend sequence of water flow and trend sequence of various water quality data is different, moving average is performed on trend sequence with maximum elements so that the number of elements of two trend sequences is the same when correlation measurement is analyzed.
7. The dynamic water quality detection method for a water supply pipeline for realizing linkage control of a rural water supply device according to any one of claims 3 to 6, wherein in each monitoring section, various monitoring data collected during a period of time when the current water quality flows through the monitoring section are collected by a monitoring point at the end point of the monitoring section as various monitoring data of each monitoring section.
8. The method for dynamically detecting water quality of water supply pipeline for realizing linkage control of rural water supply device according to claim 1, wherein the calculation formula of the water quality disturbance coefficient is as follows: in the formula, Is the first The water quality disturbance coefficient of one period, Is the first The period corresponds to the LOF value of the feature vector of the sample, Is the maximum LOF value in the eigenvector of the corresponding sample for all cycles, Is the segmentation threshold for the LOF values of the feature vectors of the corresponding samples for all periods, Is the total number of monitored segments, 、 Respectively the first The decision coefficients of the fitting curve constructed by all samples and all normal samples of each monitoring section, Is the first The difference measure of two fitted curves constructed by all samples and all normal samples of each monitoring section.
9. The dynamic water quality detection method for a water supply pipeline for realizing linkage control of a rural water supply device according to claim 1, wherein the calculation formula of the section water quality coefficient is as follows: in the formula, Is the sample to be detected at the first place The water quality coefficient of each monitoring section is calculated, 、 Respectively is a sign function, The function of the function is that, Is the water quality disturbance coefficient of the period to which the sample to be detected belongs, Is the time of all acquisitions in the sample to be detected, Is a sample to be detected Time of day (time) The water quality fluctuation coefficient of each monitoring section.
10. The method for dynamically detecting water quality of water supply pipeline for implementing linkage control of rural water supply device as set forth in claim 9, wherein the method for judging water quality detection condition by combining preset water quality coefficient threshold is as follows: When (when) And is also provided with When start the first Sterilizing by a sterilizing device of each monitoring section; When (when) And is also provided with When start the first Sterilizing the sterilizing device of the monitoring section while sterilizing the first The water delivery pipeline of each monitoring section issues pipeline maintenance and water plant process adjustment instructions; Wherein, the For a preset threshold value of the water quality coefficient, In the first place for the sample to be detected The water quality coefficients of the sections are monitored.

Description

Dynamic water quality detection method for water supply pipeline for realizing linkage control of rural water supply device Technical Field The application relates to the technical field of dynamic water quality detection, in particular to a dynamic water quality detection method for a water supply pipeline for realizing linkage control of a rural water supply device. Background The water supply safety is one of the core contents of country plain and basic civil security. However, due to the restriction of natural geographic conditions and development level, vast hills, mountains and remote areas in China are scattered in rural aggregation and distribution height, and the water supply system has the characteristics of small scale, long pipelines, scattered users, weak management and the like. The structural characteristics make it difficult to apply the urban centralized water supply monitoring and management mode to rural water supply, and development of an intelligent and accurate water quality safety guarantee technology adapting to actual conditions is needed. Under the prior art system, the water quality detection of rural water supply pipelines mainly depends on limited fixed monitoring points, and meanwhile, the water quality in the pipelines is easy to change obviously and dynamically along with time and space due to small rural water consumption, low pipeline flow speed and long water retention time. However, most of the current detection methods are in a static and discrete 'spot measurement' mode, so that the time-space evolution rule of water quality in the conveying process cannot be reflected, and the water quality state of the end user when the end user actually uses water is difficult to capture. Disclosure of Invention In order to solve the technical problems, the application provides a dynamic water quality detection method for a water supply pipeline for realizing linkage control of a rural water supply device, so as to solve the existing problems. The application discloses a dynamic water quality detection method for a water supply pipeline for realizing linkage control of a rural water supply device, which adopts the following technical scheme: The application provides a dynamic water quality detection method for a water supply pipeline for realizing linkage control of a rural water supply device, which comprises the following steps of: arranging a plurality of monitoring points along the main pipeline and the peripheral line of the pipeline, and monitoring water quality data and water flow in real time; Constructing a water quality fluctuation coefficient of any monitoring section at each moment based on the water quality fluctuation characteristics of any monitoring section at each moment and the water quality fluctuation characteristic differences of any monitoring section at each moment when water quality flows in all the adjacent monitoring sections before the water quality fluctuation characteristics of any monitoring section at each moment; the method comprises the steps of respectively acquiring a characteristic vector of a data acquisition sample corresponding to a period of each preset period in all monitoring sections, constructing a sequence consisting of all water quality fluctuation coefficients of each preset period, analyzing abnormal scores of the characteristic vectors of all samples to screen out normal samples, and acquiring fitting curves of all samples in each monitoring section and all normal samples constructed by the water quality fluctuation coefficients; constructing a water quality disturbance coefficient of each period by utilizing the abnormal score of the characteristic vector of the corresponding sample of each period, the difference measurement between the fitting curves constructed by all samples of each monitoring section and the normal samples and the decision coefficient of the fitting curve; And constructing the water quality coefficient of the sample to be detected in each monitoring section by utilizing the water quality fluctuation coefficient of the sample to be detected in each moment and the water quality disturbance coefficient of each period in each monitoring section, and combining a preset water quality coefficient threshold value to judge the water quality detection condition. Preferably, the water quality data includes turbidity, residual chlorine, metal content. Preferably, the water quality fluctuation coefficient of any monitoring section at each moment is positively correlated with the water quality fluctuation characteristic of any monitoring section at each moment, and the water quality fluctuation coefficient of any monitoring section at each moment is positively correlated with the average difference of the water quality fluctuation characteristics of the water quality flowing through all adjacent monitoring sections before the water quality fluctuation coefficient of any monitoring section at each moment. Preferably, the water q