Hydrological information automatic fusion method and system based on machine learning

Abstract

The invention belongs to the technical field of hydrological information, and particularly provides a hydrological information automatic fusion method and system based on machine learning, and the method comprises the steps: dividing a river into an upstream region and a downstream region, and obtaining the information data of the upstream region and the information data of the downstream region of the river in real time, analyzing the hydrological ecological coincidence index of the current period of the upstream area of the river and the hydrological ecological coincidence index of the current period of the downstream area of the river; based on the obtained hydrological ecological coincidence index of the current period of the upstream area of the river and the hydrological ecological coincidence index of the current period of the downstream area of the river, adjusting through the hydropower station; after the hydropower station is adjusted, the hydrological ecological adjustment conformity index of the current period of the downstream area of the river is analyzed. The method and the system can reflect the real conditions of biological inhabitation and water quality of the river downstream ecological system, avoid the unreasonable distribution of the flow of the hydropower station, and reduce the problem of downstream ecological deterioration.

Description

Technical Field

[0001] The present invention belongs to the field of hydrological information technology, and specifically, relates to a method and system for automatically fusing hydrological information based on machine learning. Background Art

[0002] With the continuous increase in global climate change and the intensity of human activities in the development and utilization of water resources, the complexity and uncertainty of the hydrological system have increased significantly. Traditional hydrological information monitoring and processing methods gradually expose many limitations when facing massive, multi-source hydrological data with spatio-temporal variability. Therefore, it is necessary to analyze the method and system for automatically fusing hydrological information based on machine learning.

[0003] An existing technology, such as an invention patent application with the publication number CN107563139A, discloses a method for calculating the contribution degree of a point-source sudden water pollution source accident. This invention relates to a method for calculating the contribution degree of a point-source sudden water pollution source accident, which can effectively solve the problems of rapid source tracing in river basins and the management and protection of the basin environment. The method is as follows: according to the natural geographical characteristics of the basin, determine the control area corresponding to the control section of the basin; use pollution source monitoring data and pollution source statistical data to budget the pollution sources in the basin; use a one-dimensional unsteady water quality model to establish the response relationship between the pollution sources in the basin and the water quality of the section; use the response relationship between the pollution sources and the water quality of the section to calculate the contribution coefficient of the pollution sources in the basin, which represents the contribution degree of the pollution sources. The method of the present invention is novel and unique, easy to operate and use, accurate in calculation, and high in efficiency. It makes full use of the existing basic information of pollution sources, quickly feedbacks the pollution source status in the river control section in a short time, locks the pollution sources with relatively large contribution degrees to the water quality of the river section in the basin, provides support for basin pollution source tracing, and is effectively used for the environmental protection and treatment of rivers.

[0004] Based on the above-mentioned solutions, it can be found that a method and system for automatically fusing hydrological information based on machine learning in the prior art can meet the basic requirements, but there are also some potential defects and challenges, which are specifically reflected in the following aspects: 1. Most of the prior art conducts an overall analysis of rivers, and the discrimination degree between the hydrological ecological compliance index of the current period in the upstream area of the river and the hydrological ecological compliance index of the current period in the downstream area of the river is not high. Due to the inaccurate analysis of the hydrological ecological compliance index of the current period in the upstream area of the river, it cannot reflect the true situation of the biological habitat and water quality of the downstream ecosystem, thereby affecting the biological health and safety in the downstream, reducing the suitability of the water level and flow rate of the downstream river, and making it impossible to further adjust the hydropower station.

[0005] 2. In the prior art, the attention to the regulation through hydropower stations is not deep enough. Due to the unreasonable distribution of the flow rate of hydropower stations, the downstream ecology deteriorates, increasing the probability of insufficient ecological water use and the risk of water quality deterioration, thus affecting the economic development of the surrounding areas. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a method and system for automatically fusing hydrological information based on machine learning, which can reflect the true conditions of the biological habitat and water quality of the downstream river ecosystem, avoid the unreasonable distribution of the flow rate of hydropower stations, and reduce the problem of downstream ecological deterioration.

[0007] To solve the above technical problem, the technical solution adopted by the present invention is: a method for automatically fusing hydrological information based on machine learning, including the following steps: Step 1: Collection of river ecological data: The river is divided into regions, including the upstream region and the downstream region. The information data of the upstream region and the downstream region of the river are obtained in real time through hydrological observation stations and satellite remote sensing, and the hydrological ecological compliance index of the current period of the upstream region of the river and the hydrological ecological compliance index of the current period of the downstream region of the river are analyzed. Step 2: Analysis of river ecological data: Based on the hydrological ecological compliance index of the current period of the upstream region of the river and the hydrological ecological compliance index of the current period of the downstream region of the river obtained, regulation is carried out through the hydropower station. Step 3: Control of river ecological hydrological information: After the regulation of the hydropower station, the hydrological ecological regulation compliance index of the current period of the downstream region of the river is analyzed.

[0008] In the preferred solution, in the above Step 1, the analysis method of the hydrological ecological compliance index of the current period of the upstream region of the river is: based on the obtained information data of the upstream region of the river, the water quality compliance index of the current period of the upstream region of the river and the hydrological dynamic compliance index of the current period of the upstream region of the river are analyzed, and then the hydrological ecological compliance index of the current period of the upstream region of the river is analyzed. The calculation formula of the hydrological ecological compliance index of the current period of the upstream region of the river is: ; where the upstream region information data includes: dissolved oxygen content in water flow, nutrient salt concentration in water flow, flow rate, water level height.

[0009] In the preferred solution, the specific analysis method of the water quality compliance index of the current period of the upstream region of the river is: According to the current cycle's water flow dissolved oxygen content and water flow nutrient salt concentration in the upper reaches of the river, and extracting the current cycle's water flow dissolved oxygen reference content and water flow nutrient salt reference concentration in the upper reaches of the river from the database, the specific calculation formula for the water quality compliance index in the current cycle of the upper reaches of the river is as follows: ; Among them, represents the current cycle's water flow dissolved oxygen reference content in the upper reaches of the river, represents the current cycle's water flow dissolved oxygen content in the upper reaches of the river, represents the current cycle's water flow nutrient salt reference concentration in the upper reaches of the river, represents the current cycle's water flow nutrient salt concentration in the upper reaches of the river.

[0010] In the preferred solution, the specific analysis method for the hydrological dynamics compliance index in the current cycle of the upper reaches of the river is as follows: Based on the obtained current cycle's flow rate and water level height in the upper reaches of the river, and extracting the maximum and minimum flow rates and the maximum and minimum water level heights in the current cycle, thereby obtaining the current cycle's flow rate difference and water level height difference, and extracting the current cycle's flow rate reference difference and water level height reference difference in the upper reaches of the river from the database, and then analyzing the hydrological dynamics compliance index in the current cycle of the upper reaches of the river. The calculation formula for the hydrological dynamics compliance index in the current cycle of the upper reaches of the river is as follows: ; Among them, represents the current cycle's flow rate reference difference in the upper reaches of the water flow, represents the current cycle's flow rate difference in the upper reaches of the water flow, represents the current cycle's water level height reference difference in the upper reaches of the water flow, represents the current cycle's water level height difference in the upper reaches of the water flow.

[0011] In the preferred solution, the analysis method for the hydrological ecology compliance index in the current cycle of the lower reaches of the river is as follows: Based on the obtained downstream area information data, analyze the current cycle's biological habitat compliance index and the current cycle's pollution compliance index in the lower reaches of the river, and then analyze the current cycle's hydrological ecology compliance index in the lower reaches of the river. The calculation formula for the current cycle's hydrological ecology compliance index in the lower reaches of the river is as follows: , wherein the downstream area information data includes: the quantity of various organisms in the current cycle, the aberration rate of various organisms, the water nutrient deposition value in the current cycle, and the content of each pollutant.

[0012] In a preferred embodiment, the analysis method of the biological habitat compliance index of the current cycle in the downstream area of the river is as follows: Based on the quantity of various organisms, the aberration rate of various organisms, and the water nutrient deposition value in the current cycle of the downstream area of the river obtained, and extracting the reference quantity of organisms and the reference value of water nutrient deposition in the current cycle from the database, and then analyzing the biological habitat compliance index of the current cycle in the downstream area of the river. The calculation formula of the biological habitat compliance index of the current cycle in the downstream area of the river is: ; wherein, represents the reference quantity of organisms in the current cycle of the downstream area of the river, represents the quantity of the th type of organism in the current cycle of the downstream area of the river, represents the aberration rate of organisms in the current cycle of the downstream area of the river, represents the aberration rate of the th type of organism in the current cycle of the downstream area of the river, represents the reference value of water nutrient deposition in the current cycle of the downstream area of the river, represents the water nutrient deposition value in the current cycle of the downstream area of the river, , wherein, represents the number of the biological category, represents the quantity of the biological category.

[0013] In a preferred embodiment, the analysis method of the pollution compliance index of the current cycle in the downstream area of the river is: Based on the content of each pollutant in the current cycle of the downstream area of the river obtained, analyze the pollution compliance index of the current cycle in the downstream area of the river. The calculation formula of the pollution compliance index of the current cycle in the downstream area of the river is as follows: ; wherein, represents the th pollutant content in the current cycle of the downstream area of the river, , wherein represents the number of the pollutant, represents the quantity of the pollutant.

[0014] In a preferred embodiment, the method of adjusting through the hydropower station in the second step is: Based on the current-cycle hydro-ecological compliance index of the upstream region of the river and the current-cycle hydro-ecological compliance index of the downstream region of the river obtained, the current-cycle hydro-ecological compliance index of the upstream region of the river and the current-cycle hydro-ecological compliance index of the downstream region of the river are respectively compared with the safety intervals of the current-cycle hydro-ecological compliance index of the upstream region of the river and the safety intervals of the current-cycle hydro-ecological compliance index of the downstream region of the river stored in the database, and then the regulation method is selected: If the hydro-ecological compliance index of the current cycle of the upstream region of the river is not within the safety interval of the current-cycle hydro-ecological compliance index of the upstream region of the river, and the current-cycle hydro-ecological compliance index of the downstream region of the river is not within the safety interval of the current-cycle hydro-ecological compliance index of the downstream region, then the regulation method of the hydropower station is recorded as the primary regulation method; If the hydro-ecological compliance index of the current cycle of the upstream region of the river is not within the safety interval of the current-cycle hydro-ecological compliance index of the upstream region of the river, and the current-cycle hydro-ecological compliance index of the downstream region of the river is within the safety interval of the current-cycle hydro-ecological compliance index of the downstream region, then the regulation method of the hydropower station is recorded as the secondary regulation method; If the hydro-ecological compliance index of the current cycle of the upstream region of the river is within the safety interval of the current-cycle hydro-ecological compliance index of the upstream region of the river, and the current-cycle hydro-ecological compliance index of the downstream region of the river is not within the safety interval of the current-cycle hydro-ecological compliance index of the downstream region, then the regulation method of the hydropower station is recorded as the tertiary regulation method.

[0015] In the preferred solution, in step three, the analysis method of the current-cycle hydro-ecological regulation compliance index of the downstream region of the river is: Based on the obtained regulation data of the downstream region of the river, where the regulation data of the downstream region of the river includes: the pollution load coefficients and pollutant concentrations of each time period of the river, the pollutant concentrations of each time period of the river are processed by taking the ratio with the pollution load coefficients to obtain the flow rates corresponding to the self-purification capabilities of each time period of the river, and then the mean value is processed to obtain the flow rate corresponding to the self-purification capability of the river per unit time, and further analyze the current-cycle hydro-ecological regulation compliance index of the downstream region of the river; The calculation formula for the current-cycle hydro-ecological regulation compliance index of the downstream region of the river is: ; Wherein, represents the flow rate corresponding to the self-purification capability of the river per unit time, represents the reference flow rate corresponding to the self-purification capability of the river per unit time stored in the database.

[0016] The present invention also provides a system for implementing the above-mentioned automatic fusion method of hydrological information based on machine learning, including: River ecological data collection module: Divide the river into regions, including the upstream region and the downstream region, and analyze the hydrological ecological compliance index of the current cycle in the upstream region of the river and the hydrological ecological compliance index of the current cycle in the downstream region of the river through the information data of the upstream region and the downstream region of the river uploaded in real time by hydrological observation stations and satellite remote sensing. River ecological data analysis module: Based on the hydrological ecological compliance index of the current cycle in the upstream region of the river and the hydrological ecological compliance index of the current cycle in the downstream region of the river obtained, screen each abnormal hydrological ecology of the river. River ecological hydrological information control module: Based on the obtained abnormal hydrological ecologies of the river, and through the regulation of the hydropower station, obtain the regulation data of the downstream region of the river, and after the regulation of the hydropower station, analyze the hydrological ecological regulation compliance index of the current cycle in the downstream region of the river.

[0017] An automatic fusion method and system of hydrological information based on machine learning provided by the present invention have the following beneficial effects: 1. By analyzing the hydrological ecological compliance index of the current cycle in the upstream region of the river and the hydrological ecological compliance index of the current cycle in the downstream region of the river, the problem of reflecting the true situation of the biological habitat and water quality of the downstream river ecosystem is improved, thereby improving the health and safety of downstream organisms, improving the suitability of the water level and flow of the downstream river, and further regulating the hydropower station.

[0018] 2. Based on the hydrological ecological compliance index of the current cycle in the upstream region of the river and the hydrological ecological compliance index of the current cycle in the downstream region of the river obtained, through the regulation of the hydropower station, the situation of unreasonable distribution of the flow of the hydropower station is avoided, the problem of downstream ecological deterioration is reduced, the problem of insufficient ecological water use is improved, the occurrence of water pollution problems is reduced, and thus the economic development of the surrounding areas is promoted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the present invention in conjunction with the drawings and embodiments: Figure 1 It is a schematic flowchart of the implementation steps of the method of the present invention; Figure 2 It is a schematic connection diagram of the system structure of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0021] Example 1: As Figure 1 shown, the present invention provides an automatic fusion method for hydrological information based on machine learning, comprising the following steps: Step 1. Collection of river ecological data: The river is divided into an upstream area and a downstream area. Information data of the upstream area and the downstream area of the river are obtained in real time through hydrological observation stations and satellite remote sensing, and the hydrological ecological compliance index of the current cycle of the upstream area of the river and the hydrological ecological compliance index of the current cycle of the downstream area of the river are analyzed.

[0022] It should be noted that in this embodiment, the area above the hydrological observation station is denoted as the upstream area, and the area below the hydrological observation station is denoted as the downstream area.

[0023] The upstream area information data includes: dissolved oxygen content in water flow, nutrient salt concentration in water flow, flow rate, water level height; the downstream area information data includes: the number of various organisms in the current cycle, the distortion rate of various organisms, the sedimentation value of nutrients in water in the current cycle, and the content of various pollutants.

[0024] The analysis method for the hydrological ecological compliance index of the current cycle of the upstream area of the river is: based on the obtained upstream area information data of the river, analyze the water quality compliance index of the current cycle of the upstream area of the river and the hydrological dynamic compliance index of the current cycle of the upstream area of the river , and then analyze the hydrological ecological compliance index of the current cycle of the upstream area of the river. The calculation formula for the hydrological ecological compliance index of the current cycle of the upstream area of the river is: .

[0025] In this embodiment, the specific analysis method for the water quality compliance index of the current cycle of the upstream area of the river is: According to the obtained dissolved oxygen content in water flow and nutrient salt concentration in water flow of the current cycle of the upstream area of the river, and extracting the reference dissolved oxygen content in water flow and the reference nutrient salt concentration in water flow of the current cycle of the upstream area of the river from the database, the specific calculation formula for the water quality compliance index of the current cycle of the upstream area of the river is: ; Wherein, represents the reference dissolved oxygen content in water flow of the current cycle of the upstream area of the river, represents the dissolved oxygen content in water flow of the current cycle of the upstream area of the river, represents the reference nutrient salt concentration in water flow of the current cycle of the upstream area of the river, The nutrient concentration of the water flow in the current period in the upstream area represented as a river.

[0026] It should be noted that the dissolved oxygen content and nutrient concentration of the water flow in the current period in the upstream area of the river are detected by an electrochemistry dissolved oxygen meter and a multi-parameter water quality detector.

[0027] It should be noted that the reference dissolved oxygen content and reference nutrient concentration of the water flow in the current period in the upstream area of the river are obtained by extracting the median values from the safe intervals of the dissolved oxygen content and the safe intervals of the nutrient concentration of the water flow in the same period in the upstream area of the river stored in the database, respectively, as the reference dissolved oxygen content and reference nutrient concentration of the water flow in the current period in the upstream area of the river.

[0028] It should be noted that the safe intervals of the dissolved oxygen content of the water flow and the safe intervals of the nutrient concentration of the water flow are set by the environmental protection center.

[0029] In this embodiment, the specific analysis method for the hydrological dynamics in the current period in the upstream area of the river is as follows: Based on the obtained flow rate and water level height in the current period in the upstream area, and extracting the maximum and minimum flow rates and the maximum and minimum water level heights in the current period, and then obtaining the flow rate difference and water level height difference in the current period, and extracting the reference flow rate difference and reference water level height difference in the current period in the upstream area of the river from the database, and then analyzing the hydrological dynamics compliance index in the current period in the upstream area of the river. The calculation formula for the hydrological dynamics compliance index in the current period in the upstream area of the river is: ; Wherein, Represents the reference flow rate difference in the current period in the upstream area of the water flow, Represents the flow rate difference in the current period in the upstream area of the water flow, Represents the reference water level height difference in the current period in the upstream area of the water flow, Represents the water level height difference in the current period in the upstream area of the water flow.

[0030] It should be noted that the flow rate and water level height in the current period in the upstream area of the river are detected by a current meter and a float-type water level gauge, respectively.

[0031] It should be noted that the flow reference difference and water level reference height difference in the current period of the upper reaches of the river are obtained by respectively retrieving the flow differences and water level height differences in each historical period from the database, and performing average processing on them to obtain the average flow difference and average water level height difference, and using the average flow difference and average water level height difference as the flow reference difference and water level reference height difference respectively, so as to obtain the flow reference difference and water level reference height difference in the current period of the upper reaches of the river.

[0032] In this embodiment, the analysis method of the hydro-ecological compliance index in the current period of the lower reaches of the river is as follows: Based on the obtained downstream area information data, analyze the biological habitat compliance index in the current period of the lower reaches of the river and the pollution compliance index in the current period of the lower reaches of the river , and then analyze the hydro-ecological compliance index in the current period of the lower reaches of the river , the hydro-ecological compliance index in the current period of the lower reaches of the river The calculation formula is: .

[0033] It should be noted that pictures of various organisms are obtained through a camera, and through image recognition technology, the body shape characteristics of various organisms are obtained, and the distortion rate of various organisms is obtained.

[0034] It should be noted that each pollutant includes bacteria, viruses, parasites, etc. in biological pollutants, mercury, lead, nitrogen, phosphorus, etc. in inorganic pollutants, and oils, food residues, fuels, etc. in organic pollutants. For example, domestic sewage is directly discharged into the river without treatment, and organic substances such as food residues in it will decompose and consume the dissolved oxygen in the water, resulting in oxygen deficiency in the water body and affecting the survival of aquatic organisms. When these organic substances are decomposed by microorganisms in the water body, they will consume the oxygen in the water, and its content is usually measured by chemical oxygen demand COD. A high COD value means that the water contains a large amount of organic substances that can be oxidized by chemical oxidants, which is an important indicator of water body pollution by organic substances.

[0035] For example, an oil tanker leak will cause a large amount of oil to enter the river. The oil forms an oil film on the water surface, hindering oxygen from entering the water body. At the same time, some toxic components in the oil, such as polycyclic aromatic hydrocarbons, will cause poisoning to aquatic organisms. These substances will not only affect the sensory properties of the water body, but also interfere with the normal functions of the aquatic ecosystem.

[0036] In this embodiment, the analysis method of the biological habitat compliance index in the current period of the lower reaches of the river is as follows: Based on the quantities of various organisms, the distortion rates of various organisms, and the water nutrient deposition values in the current cycle of the downstream area of the river, and extracting the reference quantities of organisms and the reference values of water nutrient deposition in the current cycle from the database, and then analyzing the biological habitat compliance index in the current cycle of the downstream area of the river. The calculation formula for the biological habitat compliance index in the current cycle of the downstream area of the river is: ; Wherein, represents the reference quantity of organisms in the current cycle of the downstream area of the river, represents the quantity of the th type of organism in the current cycle of the downstream area of the river, represents the distortion rate of organisms in the current cycle of the downstream area of the river, represents the distortion rate of the th type of organism in the current cycle of the downstream area of the river, represents the reference value of water nutrient deposition in the current cycle of the downstream area of the river, represents the value of water nutrient deposition in the current cycle of the downstream area of the river, , wherein, represents the number of the organism category, represents the quantity of the organism category.

[0037] It should be noted that the quantities of various organisms and the values of water nutrient deposition in the current cycle of the downstream area of the river are detected by a biological analyzer and a substance detector.

[0038] In this embodiment, the analysis method for the pollution compliance index in the current cycle of the downstream area of the river is: Based on the contents of various pollutants in the current cycle of the downstream area of the river, analyze the pollution compliance index in the current cycle of the downstream area of the river. The pollution compliance index in the current cycle of the downstream area of the river has the following calculation formula: ; Wherein, represents the content of the th pollutant in the current cycle of the downstream area of the river, , where represents the number of the pollutant, represents the quantity of the pollutant.

[0039] It should be noted that the contents of various pollutants in the current cycle of the downstream area of the river are detected by a sewage detector.

[0040] Step 1 improves the problem of reflecting the true conditions of the biological habitats and water quality of the downstream ecosystem of the river by analyzing the hydrological-ecological compliance indices of the current cycle in the upper reaches of the river and the hydrological-ecological compliance indices of the current cycle in the lower reaches of the river. Furthermore, it improves the health and safety of downstream organisms and the suitability of the water level and flow rate of the downstream river.

[0041] Step 2, River ecological data analysis: Based on the obtained hydrological-ecological compliance indices of the current cycle in the upper reaches of the river and the hydrological-ecological compliance indices of the current cycle in the lower reaches of the river, adjust through the hydropower station.

[0042] The method of adjustment through the hydropower station is as follows: Based on the obtained hydrological-ecological compliance indices of the current cycle in the upper reaches of the river and the hydrological-ecological compliance indices of the current cycle in the lower reaches of the river, compare the hydrological-ecological compliance indices of the current cycle in the upper reaches of the river and the hydrological-ecological compliance indices of the current cycle in the lower reaches of the river with the safety intervals of the hydrological-ecological compliance indices of the current cycle in the upper reaches of the river stored in the database and the safety intervals of the hydrological-ecological compliance indices of the current cycle in the lower reaches of the river respectively, and then select the adjustment method: If the hydrological-ecological compliance index of the current cycle in the upper reaches of the river is not within the safety interval of the hydrological-ecological compliance index of the current cycle in the upper reaches of the river, and the hydrological-ecological compliance index of the current cycle in the lower reaches of the river is not within the safety interval of the hydrological-ecological compliance index of the current cycle in the lower reaches of the river, then record the adjustment method of the hydropower station as the primary adjustment method.

[0043] It should be noted that for the primary adjustment method, according to the difference in the hydrological-ecological compliance indices of the current cycle between the upper and lower reaches of the river, reduce the water flow velocity of the hydropower station, and input water quality purification raw materials in the upper and lower reaches respectively.

[0044] It should be noted that the difference in the hydrological-ecological compliance indices of the current cycle between the upper and lower reaches of the river is obtained by taking the difference between the hydrological-ecological compliance index of the current cycle in the upper reaches of the river and the hydrological-ecological compliance index of the current cycle in the lower reaches of the river. And according to the difference in the hydrological-ecological compliance indices of the current cycle between the upper and lower reaches of the river, match the difference in the hydrological-ecological compliance indices with the intervals of the difference in the hydrological-ecological compliance indices corresponding to each reduced adjustment water flow velocity stored in the database to obtain the adjustment water flow velocity of the hydropower station.

[0045] It should be noted that the intervals of the difference in the hydrological-ecological compliance indices corresponding to each reduced adjustment water flow velocity stored in the database are set by the staff.

[0046] If the hydrological ecology compliance index of the upstream region of the river in a cycle is not within the safety interval of the hydrological ecology compliance index of the current cycle in the upstream region of the river, and the hydrological ecology compliance index of the current cycle in the downstream region of the river is within the safety interval of the hydrological ecology compliance index of the current cycle in the downstream region, then the regulation mode of the hydropower station is recorded as the secondary regulation mode.

[0047] It should be noted that for the secondary regulation mode, according to the difference in the hydrological ecology compliance index of the current cycle between the upstream and downstream regions of the river, the water flow velocity of the hydropower station is reduced, and water quality purification raw materials are input into the upstream region to improve the discharged water quality.

[0048] If the hydrological ecology compliance index of the upstream region of the river in a cycle is within the safety interval of the hydrological ecology compliance index of the current cycle in the upstream region of the river, and the hydrological ecology compliance index of the current cycle in the downstream region of the river is not within the safety interval of the hydrological ecology compliance index of the current cycle in the downstream region, then the regulation mode of the hydropower station is recorded as the tertiary regulation mode.

[0049] It should be noted that for the tertiary regulation mode, according to the difference in the hydrological ecology compliance index of the current cycle between the upstream and downstream regions of the river, the water flow velocity of the hydropower station is increased.

[0050] Step 2: Based on the obtained hydrological ecology compliance index of the current cycle in the upstream region of the river and the hydrological ecology compliance index of the current cycle in the downstream region of the river, regulation is carried out through the hydropower station, avoiding unreasonable distribution of the flow rate of the hydropower station, reducing the problem of downstream ecological deterioration, improving the problem of insufficient ecological water use, reducing the occurrence of water pollution problems, and thus promoting the economic development of the surrounding areas.

[0051] Step 3: River ecological hydrological information control: After the regulation of the hydropower station, analyze the hydrological ecology regulation compliance index of the current cycle in the downstream region of the river.

[0052] In this embodiment, the analysis method of the hydrological ecology regulation compliance index of the current cycle in the downstream region of the river is as follows: Based on the obtained regulation data of the downstream region of the river, where the regulation data of the downstream region of the river includes: the pollution load coefficient and pollutant concentration of each time period of the river, the pollutant concentration of each time period of the river is divided by the pollution load coefficient to obtain the flow rate corresponding to the self-purification ability of each time period of the river, and the mean value is calculated to obtain the flow rate corresponding to the self-purification ability of the river per unit time, and then the hydrological ecology regulation compliance index of the current cycle in the downstream region of the river is analyzed; The calculation formula for the hydrological ecology regulation compliance index of the current cycle in the downstream region of the river is: ; Where, It is expressed as the flow rate corresponding to the self-purification capacity of the river per unit time. It is expressed as the reference flow rate corresponding to the self-purification capacity of the river per unit time stored in the database.

[0053] It should be noted that the flow rate corresponding to the self-purification capacity of the river per unit time refers to the minimum flow rate required to ensure the self-purification capacity of the water body, that is, the flow rate required to dilute and wash away pollutants. For example, according to the pollution load of the river and the self-purification coefficient of the water body, the flow rate required to reduce the pollutant concentration to a certain standard or below is determined.

[0054] It should be noted that the pollutant concentration is the overall concentration. The concentrations of each pollutant are normalized to obtain the concentrations of each pollutant after treatment, and the concentrations of each pollutant are added to obtain the pollutant concentration.

[0055] Embodiment 2: As Figure 2 shown, the present invention also provides a system for the automatic fusion method of hydrological information based on machine learning, including: River ecological data collection module: The river is divided into an upstream area and a downstream area, and the upstream area information data and downstream area information data of the river uploaded in real time through hydrological observation stations and satellite remote sensing are used to analyze the hydrological ecological compliance index of the current period in the upstream area of the river and the hydrological ecological compliance index of the current period in the downstream area of the river. River ecological data analysis module: Based on the obtained hydrological ecological compliance index of the current period in the upstream area of the river and the hydrological ecological compliance index of the current period in the downstream area of the river, each abnormal hydrological ecology of the river is screened. River ecological hydrological information control module: Based on the obtained abnormal hydrological ecologies of the river and adjusted by a hydropower station, the adjusted data of the downstream area of the river are obtained, and after the adjustment by the hydropower station, the hydrological ecological adjustment compliance index of the current period in the downstream area of the river is analyzed.

[0056] It should be noted that the database is used to store the reference content of dissolved oxygen in water flow, the reference concentration of water flow nutrients, the reference difference in flow rate, the reference difference in water level height in the current period of the upstream area of the river, the reference number of organisms and the reference value of nutrient deposition in water in the current period of the downstream area of the river, and the safety intervals of the hydrological ecological compliance indexes in the current period of the upstream area of the river and the safety intervals of the hydrological ecological compliance indexes in the current period of the downstream area of the river, and the reference flow rate corresponding to the self-purification capacity of the river per unit time.

[0057] Those skilled in the art can easily understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for automatic fusion of hydrological information based on machine learning, characterized in that: The following steps are involved: Step 1: River ecological data collection: Divide the river into upstream and downstream areas, obtain the upstream and downstream area information data of the river in real time through hydrological observation stations and satellite remote sensing, and analyze the hydrological ecological compliance index of the upstream area of ​​the river and the hydrological ecological compliance index of the downstream area of ​​the river in the current period; Step 2: River ecological data analysis: Based on the hydrological ecological compliance index of the upstream area of ​​the river in the current period and the hydrological ecological compliance index of the downstream area of ​​the river in the current period, regulation is carried out through the hydropower station; Step 3: River eco-hydrological information control: After the hydropower station regulation, analyze the current cycle hydro-ecological regulation compliance index of the downstream area of ​​the river.

2. The method for automatic fusion of hydrological information based on machine learning according to claim 1 is characterized in that: In the step 1, the method for analyzing the hydrological ecological compliance index of the current period in the upstream area of ​​the river is: based on the obtained upstream area information data of the river, analyzing the water quality compliance index of the current period in the upstream area of ​​the river The hydrological dynamics of the current cycle in the upstream area of ​​the river are consistent with the index Then the hydrological ecological compliance index of the current period in the upstream area of ​​the river is analyzed. The calculation formula of the hydrological ecological compliance index of the current period in the upstream area of ​​the river is: Among them, the upstream area information data includes: water dissolved oxygen content, water nutrient concentration, flow rate, and water level.

3. The method for automatic fusion of hydrological information based on machine learning according to claim 2 is characterized in that: The water quality compliance index of the upstream area of ​​the river during the current period The specific analysis method is: According to the obtained dissolved oxygen content and nutrient concentration of the current cycle of the water flow in the upstream area of ​​the river, and the reference dissolved oxygen content and nutrient concentration of the current cycle of the water flow in the upstream area of ​​the river are extracted from the database, the specific calculation formula of the water quality compliance index of the current cycle of the upstream area of ​​the river is: ； in, The reference dissolved oxygen content of the current period in the upstream area of ​​the river is expressed as The dissolved oxygen content of the water in the upstream area of ​​the river during the current cycle, Expressed as the reference concentration of nutrient salts in the current period of the upstream area of ​​the river, Expressed as the nutrient concentration of the current cycle in the upstream area of ​​the river.

4. The method for automatic fusion of hydrological information based on machine learning according to claim 2 is characterized in that: The specific analysis method of the hydrological dynamic compliance index of the current period in the upstream area of ​​the river is: Based on the current cycle flow and water level of the upstream area, the maximum and minimum flow, maximum and minimum water level of the current cycle are extracted to obtain the flow difference and water level difference of the current cycle, and the reference flow difference and water level reference difference of the current cycle of the upstream area of ​​the river are extracted from the database to analyze the hydrological dynamic compliance index of the current cycle of the upstream area of ​​the river. The calculation formula of the hydrological dynamic compliance index of the current cycle of the upstream area of ​​the river is: ； in, It is expressed as the flow reference difference of the current cycle in the upstream area of ​​the water flow. It is expressed as the flow difference of the upstream area of ​​the water flow in the current cycle, It is expressed as the reference difference of the water level height in the upstream area of ​​the current cycle. Expressed as the water level height difference of the upstream area of ​​the water flow in the current period.

5. The method for automatic fusion of hydrological information based on machine learning according to claim 1 is characterized in that: The analysis method of the hydrological ecological compliance index of the downstream area of ​​the river in the current period is: Based on the downstream area information data obtained, analyze the biological habitat compliance index of the current cycle in the downstream area of ​​the river The pollution level of the downstream area of ​​the river is consistent with the current cycle. , and then analyze the hydrological ecological compliance index of the current cycle in the downstream area of ​​the river , the hydro-ecological compliance index of the current cycle in the downstream area of ​​the river The calculation formula is: , where the downstream area information data include: the number of various organisms in the current period, the distortion rate of various organisms, the nutrient deposition value in the water in the current period, and the content of various pollutants.

6. The method for automatic fusion of hydrological information based on machine learning according to claim 5 is characterized in that: The biological habitat compliance index of the downstream area of ​​the river during the current period The analysis method is: Based on the obtained number of various organisms, distortion rate of various organisms and nutrient deposition value in the water in the current period of the downstream area of ​​the river, the reference number of organisms and reference value of nutrient deposition in the water in the current period are extracted from the database, and then the biological habitat compliance index of the current period in the downstream area of ​​the river is analyzed. The calculation formula of the biological habitat compliance index of the current period in the downstream area of ​​the river is: ； in, Expressed as the reference number of organisms in the downstream area of ​​the river for the current cycle, The downstream area of ​​the river is represented by the current cycle Number of species, Expressed as the biological distortion rate of the current cycle in the downstream area of ​​the river, The downstream area of ​​the river is represented by the current cycle The distortion rate of the organism, It is expressed as the reference value of nutrient deposition in the water of the downstream area of ​​the river in the current cycle, It is expressed as the nutrient deposition value of the water in the downstream area of ​​the river in the current cycle, ,in, It is the number of the biological category. Expressed as the number of organism types.

7. The method for automatic fusion of hydrological information based on machine learning according to claim 5 is characterized in that: The analysis method of the pollution compliance index of the downstream area of ​​the river in the current period is: Based on the obtained pollutant content of the current period in the downstream area of ​​the river, the pollution compliance index of the current period in the downstream area of ​​the river is analyzed. The calculation formula is: ； in, The downstream area of ​​the river is represented by the current cycle The pollutant content, ,in It is represented by the pollutant number, Expressed as the amount of pollutant.

8. The method for automatic fusion of hydrological information based on machine learning according to claim 1 is characterized in that: In the step 2, the method of regulating by the hydropower station is: Based on the obtained hydrological ecological compliance index of the current period of the upstream area of ​​the river and the hydrological ecological compliance index of the current period of the downstream area of ​​the river, the hydrological ecological compliance index of the current period of the upstream area of ​​the river and the hydrological ecological compliance index of the current period of the downstream area of ​​the river are respectively compared with the hydrological ecological compliance index safety interval of the current period of the upstream area of ​​the river and the hydrological ecological compliance index safety interval of the current period of the downstream area of ​​the river stored in the database, and then the adjustment method is selected: If the hydrological ecological compliance index of the upstream area of ​​the river is not within the safety range of the hydrological ecological compliance index of the current cycle of the upstream area of ​​the river, and the hydrological ecological compliance index of the current cycle of the downstream area of ​​the river is not within the safety range of the hydrological ecological compliance index of the current cycle of the downstream area, the regulation mode of the hydropower station is recorded as the first-level regulation mode; If the hydrological ecological compliance index of the upstream area of ​​the river is not within the safety range of the hydrological ecological compliance index of the current cycle of the upstream area of ​​the river, and the hydrological ecological compliance index of the current cycle of the downstream area of ​​the river is within the safety range of the hydrological ecological compliance index of the current cycle of the downstream area, the regulation mode of the hydropower station is recorded as the secondary regulation mode; If the hydrological and ecological compliance index of the upstream area of ​​the river is within the safety range of the hydrological and ecological compliance index of the current cycle in the upstream area of ​​the river, and the hydrological and ecological compliance index of the current cycle in the downstream area of ​​the river is not within the safety range of the hydrological and ecological compliance index of the current cycle in the downstream area, the regulation mode of the hydropower station is recorded as the third-level regulation mode.

9. The method for automatic fusion of hydrological information based on machine learning according to claim 1 is characterized in that: In step 3, the analysis method of the hydrological ecological regulation compliance index of the downstream area of ​​the river in the current period is: Based on the downstream area regulation data of the river obtained, the downstream area regulation data of the river includes: the pollution load coefficient and pollutant concentration of the river in each time period, the pollutant concentration of the river in each time period is processed with the pollution load coefficient to obtain the flow corresponding to the self-purification capacity of the river in each time period, and the mean value is processed to obtain the flow corresponding to the self-purification capacity of the river per unit time, and then the hydrological ecological regulation compliance index of the downstream area of ​​the river in the current period is analyzed; The calculation formula of the hydrological ecological regulation compliance index of the downstream area of ​​the river in the current period is: ； in, It is expressed as the flow rate corresponding to the self-purification capacity of the river per unit time, It is expressed as the reference flow corresponding to the river's self-purification capacity per unit time stored in the database.

10. A system for executing the automatic fusion method of hydrological information based on machine learning according to any one of claims 1 to 9, characterized in that: include: River ecological data collection module: divide the river into upstream and downstream areas, and analyze the hydrological ecological compliance index of the upstream area and the downstream area of ​​the river in the current period through the real-time upload of upstream and downstream area information data of the river by hydrological observation stations and satellite remote sensing; River ecological data analysis module: based on the obtained hydrological ecological compliance index of the upstream area of ​​the river in the current period and the hydrological ecological compliance index of the downstream area of ​​the river in the current period, screen various abnormal hydrological ecology of the river; River ecological and hydrological information control module: Based on the abnormal hydrological ecology of the river, and through the adjustment of the hydropower station, the regulation data of the downstream area of ​​the river is obtained, and after the adjustment of the hydropower station, the current cycle hydrological and ecological regulation compliance index of the downstream area of ​​the river is analyzed.

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