CN109544427B - Water environment monitoring method and device based on hot spot grid - Google Patents
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Abstract
The application discloses a water environment monitoring method, electronic equipment, a computer readable storage medium and a device based on a hot spot grid. The water environment monitoring method based on the hot spot grid comprises the following steps: dividing the area where the water environment is located into a plurality of grids; determining a hotspot grid of the plurality of grids; acquiring water quality monitoring analysis data in the hot spot grid; and determining pollution events in the hot spot grid according to the water quality monitoring analysis data. According to the water environment monitoring method based on the hot spot grids, the areas needing to be monitored are subjected to grid division, the hot spot grids are determined to be subjected to key monitoring, and the monitoring efficiency is improved.
Description
Technical Field
The application belongs to the field of environment monitoring equipment, and particularly relates to a water environment monitoring method, electronic equipment, a computer readable storage medium and a device based on a hot spot grid.
Background
The water on earth is in dynamic balance and is circulated continuously. The water environment refers to the environment in which water is formed, distributed and transformed in the natural world. The water environment mainly comprises a surface water environment and a groundwater environment. The surface water environment comprises rivers, lakes, reservoirs, oceans, ponds, marshes, glaciers and the like, and the groundwater environment comprises spring water, shallow groundwater, deep groundwater and the like. With the development of society, the pollution problem of water environment is more and more important, and water environment monitoring becomes one of the projects of environment protection monitoring.
The current method for monitoring the water environment mainly comprises the following steps:
(1) Based on the administrative area management method, a large number of patrol personnel are arranged to patrol according to actual conditions in each administrative area, so as to supervise destructive behavior or discover problems in a mode of mass report and the like. The management method has the defects of overlarge coverage and low supervision efficiency.
(2) And setting section monitoring points in a large area, manually monitoring each month, and investigating unqualified areas. The method lays monitoring equipment on a large area, has low efficiency, and is difficult to search pollution sources.
Disclosure of Invention
In order to realize efficient supervision of a water environment, one embodiment of the present application proposes a water environment monitoring method based on a hotspot grid, including: dividing the area where the water environment is located into a plurality of grids; determining a hotspot grid of the plurality of grids; acquiring water quality monitoring analysis data in the hot spot grid; and determining pollution events in the hot spot grid according to the water quality monitoring analysis data.
In the method for monitoring the water environment based on the hot spot grid, the dividing the area where the water environment is located into a plurality of grids comprises the following steps: determining flow direction data and flow data according to the topographic data of the area; determining river network data and a maximum dumping point according to the flow data; and dividing the area into a plurality of water collecting blocks according to the maximum pouring point and the flow direction data to serve as the grid.
In the method for monitoring the water environment based on the hot spot grid, the dividing the area where the water environment is located into a plurality of grids comprises the following steps: dividing the region into the grids according to a predetermined regular shape.
In the above water environment monitoring method based on the hotspot grid, the determining the hotspot grid in the plurality of grids includes: acquiring remote sensing data of satellites of the multiple grids; determining water quality parameters in the grids according to the remote sensing data; and determining the grid with the water quality parameter higher than a threshold value as the hot spot grid.
In the above water environment monitoring method based on the hotspot grid, the determining the hotspot grid in the plurality of grids includes: counting the number of pollution discharge units in each grid; and determining the grid with the pollution discharge unit number exceeding the preset value as the hot spot grid.
In the above water environment monitoring method based on the hotspot grid, the determining the hotspot grid in the plurality of grids includes: acquiring water quality parameters of a water inlet and a water outlet in each grid; and determining the grid with the water quality parameter higher than a threshold value as the hot spot grid.
In the above water environment monitoring method based on the hot spot grid, the acquiring the water quality monitoring analysis data in the hot spot grid includes: and acquiring water quality monitoring analysis data in the hot spot grid through monitoring equipment in the hot spot grid.
In the above water environment monitoring method based on the hot spot grid, the acquiring the water quality monitoring analysis data in the hot spot grid includes: and acquiring water quality monitoring analysis data in the hot spot grid in real time through satellite remote sensing data.
An embodiment of the present application further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and capable of running on the processor, where the processor implements the hot spot grid-based water environment monitoring method described above when executing the program.
An embodiment of the present application also provides a computer readable storage medium having stored thereon a processor program, wherein the processor program is configured to perform the above-described hotspot grid-based water environment monitoring method.
An embodiment of the present application further provides a water environment monitoring device based on a hotspot grid, including: the regional division module divides the region where the water environment is located into a plurality of grids; a hotspot grid determining module for determining a hotspot grid in the plurality of grids; the monitoring analysis module is used for obtaining water quality monitoring analysis data in the hot spot grid; and the data analysis module is used for determining pollution events in the hot spot grids according to the water quality monitoring analysis data.
As an optional scheme of the application, the area dividing module determines flow direction data and flow data according to the topographic data of the area; determining river network data and a maximum dumping point according to the flow data; and dividing the area into a plurality of water collecting blocks according to the maximum pouring point and the flow direction data to serve as the grid.
As an optional aspect of the application, the area dividing module divides the area into the grids according to a predetermined regular shape.
As an optional scheme of the application, the hotspot grid determining module acquires remote sensing data of satellites of the multiple grids; determining water quality parameters in the grids according to the remote sensing data; and determining the grid with the water quality parameter higher than a threshold value as the hot spot grid.
As an optional scheme of the application, the hotspot grid determining module counts the number of pollution discharge units in each grid; and determining the grid with the pollution discharge unit number exceeding the preset value as the hot spot grid.
As an optional scheme of the application, the hotspot grid determining module obtains water quality parameters of water inlets and water outlets in each grid; and determining the grid with the water quality parameter higher than a threshold value as the hot spot grid.
As an optional scheme of the application, the monitoring and analyzing module obtains the water quality monitoring and analyzing data in the hot spot grid through the monitoring equipment in the hot spot grid.
As an optional scheme of the application, the monitoring analysis module acquires the water quality monitoring analysis data in the hot spot grid in real time through satellite remote sensing data.
According to the water environment monitoring method, the electronic equipment, the computer-readable storage medium and the device based on the hot spot grids, the water environment area to be monitored is divided into a plurality of grids, then the hot spot grids in the plurality of grids are determined, the hot spot grids are continuously monitored, the water environment area is monitored in a targeted and deep manner, the self-built pollution on-line monitoring system of an enterprise is not relied on, and the artificial interference to the monitoring is avoided. The hot spot grids can be updated regularly, so that accurate and efficient supervision is realized.
Drawings
Fig. 1 is a flow chart of a method of water environment monitoring based on a hotspot grid according to one embodiment of the present application.
FIG. 2 is a flowchart of meshing in accordance with one embodiment of the present application.
Fig. 3 is a schematic diagram of a water environment monitoring device based on a hotspot grid according to an embodiment of the present application.
Detailed Description
The following detailed description of the present application is provided in connection with the accompanying drawings and examples in order to provide a better understanding of the aspects of the present application and advantages thereof. However, the detailed description and examples set forth below are for illustrative purposes only and are not intended to be limiting of the present application.
The term "coupled" as used herein, unless explicitly stated or defined otherwise, is to be taken in a broad sense as being either directly coupled or coupled via an intervening medium. In the description of the present application, it should be understood that the directions or positional relationships indicated by "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
Fig. 1 is a flow chart of a method of water environment monitoring based on a hotspot grid according to one embodiment of the present application. As shown in fig. 1, in step S101, an area where the water environment is located is divided into a plurality of grids. In the step, the area where the water environment is located (namely the area needing to be monitored) is subjected to grid division, and different supervision measures can be adopted for the areas where different grids are located.
In step S102, a hotspot grid of the plurality of grids is determined. In this step, from the multiple grids divided in step S101, a hotspot grid to be monitored with emphasis is determined. Limited force can be concentrated on the hot spot grid to carry out depth monitoring, so that the efficiency of water environment monitoring is improved.
In step S103, water quality monitoring analysis data within the hotspot grid is obtained. In the step, the hot spot grids are monitored in a key way, and water quality monitoring analysis data in the hot spot grids are obtained.
In step S104, a contamination event in the hotspot grid is determined from the water quality monitoring analysis data. In this step, based on the water quality monitoring analysis data obtained in step S103, it is confirmed whether a pollution event exists in the hotspot grid. If a pollution event is found, the monitoring system can send out an alarm, and a supervisor can monitor a pollution discharge unit in the field according to the alarm.
Through the method of the embodiment, the monitoring department can carry out grid division on the monitored area, determine the hot spot grids and carry out key monitoring on the hot spot grids, so that the monitoring on the water environment is targeted, and the efficiency of the water environment monitoring is improved.
FIG. 2 is a flowchart of meshing in accordance with one embodiment of the present application. As shown in fig. 2, in the step S101, the area where the water environment is located is divided into a plurality of grids, which includes the following steps:
in step S201, flow direction data and flow rate data are determined from the topographic data of the area.
In this embodiment, the topographic data of the area in which the water environment is located may be digital elevation data (Digital Elevation Model), and the flow direction data and the flow rate data may be determined according to the digital elevation data. And removing the abnormally high value and the abnormally low value in the digital elevation data by using a filling method. And processing the digital elevation data processed by the filling method by using a D8 algorithm to obtain flow direction data and flow data, wherein the flow data is the flow accumulation of each grid point in the D8 algorithm.
In step S202, river network data and a maximum dumping point are determined according to the flow data.
And setting a threshold value for the flow data, and connecting grid points higher than the threshold value if the flow is greater than or equal to 1000 to obtain river network data. In this embodiment, the grid points after connection form water channels, and the crisscrossed water channels form river network data. And taking grid points at the river network data intersection as maximum pouring points. The number of maximum pouring points is not fixed and can be automatically generated according to the topography.
In step S203, the area is divided into a plurality of water collection blocks according to the maximum pouring point and the flow direction data, so as to be used as a grid.
And taking each maximum pouring point and the grid point associated with the data through the flow direction as a water collecting block. The area is divided into a plurality of catchment areas, each of which serves as a grid.
In another alternative, the area where the water environment is located is divided into a plurality of grids, including: the regions are divided into grids according to a predetermined regular shape. The area is divided into a plurality of grids according to square units with the same size.
The number of divided grids is not excessive, and the number of grids is excessive, so that the calculation amount is increased. In this embodiment, the area covered by each grid is 10 square kilometers or more. The invention is not limited to this, and the size of the grid can be adjusted according to actual requirements.
In another alternative, the area where the water environment is located is divided into a plurality of grids, including: the area is divided into a plurality of grids according to administrative division.
Optionally, determining a hotspot grid in the plurality of grids includes: acquiring remote sensing data of satellites of a plurality of grids; determining water quality parameters in a plurality of grids according to the remote sensing data; a grid with a water quality parameter above a threshold is determined as a hotspot grid.
Acquired satellite remote sensing data includes, but is not limited to, sentinel, MODIS data, himaware-8, TM series, high-resolution satellite data, and the like.
And determining the water quality parameters in the grids according to the remote sensing data. In the national standard, the water quality categories are classified into 1, 2, 3, 4, 5 and black and odorous categories in order. And training the water quality type samples and the remote sensing data to obtain a training model. And inverting the remote sensing data of the satellites of the grids according to the training model to obtain water quality categories in the grids, and taking the water quality categories as water quality parameters. The water quality parameters can be other parameters, such as COD, ammonia nitrogen, turbidity, dissolved oxygen and the like of water, and can be selected according to actual conditions.
A grid with a water quality parameter above a threshold is determined as a hotspot grid. A threshold value is set for the water quality parameter, and a grid above the threshold value is determined as a hot spot grid. Taking a water quality class as an example, a grid with a water quality class higher than 3 classes is taken as a hot spot grid.
In another alternative, determining a hotspot grid of the plurality of grids includes: counting the number of pollution discharge units in each grid; and determining the grid with the unit quantity of pollution discharge exceeding the preset value as a hot spot grid.
The number of the pollution discharge units contained in each grid is different, and the number of the pollution discharge units in each grid is counted. Setting a preset value, and determining grids with the quantity of the pollution discharge units exceeding the preset value as hot spot grids.
In another alternative, determining a hotspot grid of the plurality of grids includes: acquiring water quality parameters of a water inlet and a water outlet in each grid; a grid with a water quality parameter above a threshold is determined as a hotspot grid.
The water quality parameters of the water inlets and the water outlets in each grid are monitored through monitoring equipment, and the monitoring equipment can be automatic monitoring equipment or manual monitoring equipment, so that the water quality parameters of the water inlets and the water outlets in each grid are obtained. The water quality parameters may be water quality categories, which are classified into 1 category, 2 category, 3 category, 4 category, 5 category and black and odorous category in order in the national standard.
A threshold value is set for the water quality parameter, and a grid above the threshold value is determined as a hot spot grid. Such as a grid with a water quality class higher than class 3 as a hotspot grid.
Optionally, acquiring water quality monitoring analysis data within the hotspot grid includes: and acquiring water quality monitoring analysis data in the hot spot grid through monitoring equipment in the hot spot grid.
After the hotspot grids are determined, the hotspot grids are monitored in a key mode. Such as installing a detection device with high detection accuracy in the hotspot grid or increasing the density of monitoring devices in the hotspot grid. The water quality in the hot spot grids can be monitored according to the national ground water environment quality standard basic project, and the water quality monitoring analysis data in the hot spot grids can be obtained.
In another alternative, acquiring water quality monitoring analysis data within a hotspot grid includes: and acquiring water quality monitoring analysis data in the hot spot grid in real time through satellite remote sensing data.
Training the water quality parameter sample and satellite remote sensing data, and obtaining the water quality monitoring analysis data in the current hot spot grid through the real-time satellite remote sensing data.
And determining pollution events in the hot spot grid according to the water quality monitoring analysis data. And through the acquired water quality monitoring analysis data, the monitoring system sends out an alarm after finding the pollution event in the hot spot grid. The supervisory personnel and other related personnel can carry out the monitoring on the sewage disposal unit in the field according to the position corresponding to the alarm.
According to the water environment monitoring method based on the hot spot grids, the area where the water environment to be monitored is located is divided into a plurality of grids, the hot spot grids are used as key monitoring areas after the hot spot grids are determined, the water environment monitoring effect can be improved, and waste of manpower and financial resources is avoided.
The embodiment also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the water environment monitoring method based on the hot spot grid is realized when the processor executes the program.
The embodiment also provides a computer readable storage medium, on which a processor program is stored, wherein the processor program is configured to execute the hot spot grid-based water environment monitoring method.
Fig. 3 is a schematic diagram of a water environment monitoring device based on a hotspot grid according to an embodiment of the present application. As shown in fig. 3, this embodiment further provides a water environment monitoring device based on a hotspot grid, including: a region partitioning module 301, a hotspot grid determining module 302, a monitoring analysis module 303 and a data analysis module 304.
The regional division module 301 is configured to divide a region where the water environment is located into a plurality of grids. The area where the water environment is located is divided into a plurality of grids, and the grids with serious pollution can be subjected to important supervision.
The hotspot grid determination module 302 is configured to determine a hotspot grid of the plurality of grids. The pollution conditions in each grid are different, and the hotspot grid determining module 302 determines a hotspot grid needing to be subjected to important supervision from a plurality of grids.
The monitoring analysis module 303 is configured to obtain water quality monitoring analysis data in the hotspot grid. After the hotspot grid is determined, water quality monitoring analysis data, such as whether the content of various substances contained in water exceeds the national standard, in the hotspot grid is obtained through the monitoring analysis module 303.
The data analysis module 304 is configured to determine pollution events in the hotspot grid based on the water quality monitoring analysis data. If the pollution event exists in the hot spot grid, the monitoring system can send out an alarm to remind related personnel, for example, the hot spot grid where the pollution event exists is highlighted on the area diagram where the water environment exists.
Optionally, the area dividing module 301 determines flow direction data and flow data according to the topographic data of the area; determining river network data and a maximum dumping point according to the flow data; the area is divided into a plurality of catchment blocks according to the maximum pouring point and the flow direction data to be used as a grid.
In another alternative embodiment, the region dividing module 301 divides the region into grids according to a predetermined regular shape. The region division module 301 may also divide a region into grids according to division of administrative regions.
Optionally, the hotspot grid determination module 302 obtains remote sensing data and of satellites of the plurality of grids; determining water quality parameters in a plurality of grids according to the remote sensing data; a grid with a water quality parameter above a threshold is determined as a hotspot grid.
In another alternative embodiment, hotspot grid determination module 302 counts the number of blowdown units in each grid; and determining the grid with the unit quantity of pollution discharge exceeding the preset value as a hot spot grid.
In another alternative embodiment, hotspot grid determination module 302 obtains water quality parameters for the water inlets and outlets in each grid; a grid with a water quality parameter above a threshold is determined as a hotspot grid.
Optionally, the monitoring analysis module 303 obtains the water quality monitoring analysis data in the hotspot grid through the monitoring device in the hotspot grid.
In another alternative embodiment, the monitoring analysis module 303 obtains the water quality monitoring analysis data in the hot spot grid in real time through satellite remote sensing data.
According to the water environment monitoring method, the electronic equipment, the computer-readable storage medium and the device based on the hot spot grids, the water environment area to be monitored is divided into a plurality of grids, then the hot spot grids in the grids are determined, the hot spot grids are continuously monitored, the water environment area is monitored in a targeted and deep mode, and the artificial interference to the monitoring can be avoided.
It should be noted that the above embodiments described above with reference to the drawings are only for illustrating the present invention and not for limiting the scope of the present invention, and it should be understood by those skilled in the art that modifications or equivalent substitutions to the present invention are intended to be included in the scope of the present invention without departing from the spirit and scope of the present invention. Furthermore, unless the context indicates otherwise, words occurring in the singular form include the plural form and vice versa. In addition, unless specifically stated, all or a portion of any embodiment may be used in combination with all or a portion of any other embodiment.
Claims (7)
1. The water environment monitoring method based on the hot spot grid is characterized by comprising the following steps of:
dividing the area where the water environment is located into a plurality of grids according to administrative areas; the grids are in regular shapes and are the same in size; the number of the grids is matched with the calculated amount;
determining a hotspot grid of the plurality of grids;
acquiring water quality monitoring analysis data in the hot spot grid;
determining pollution events in the hot spot grid according to the water quality monitoring analysis data; if a pollution event occurs, an alarm is sent out;
wherein the determining a hotspot grid of the plurality of grids comprises: acquiring remote sensing data of satellites of the multiple grids; determining water quality parameters in the grids according to the remote sensing data; determining a grid with the water quality parameter higher than a threshold value as the hot spot grid;
the dividing the area where the water environment is located into a plurality of grids according to administrative areas comprises the following steps: determining flow direction data and flow data according to the topographic data of the area, wherein the topographic data of the area is digital elevation data, removing abnormal high values and abnormal low values in the digital elevation data by using a filling method, and processing the digital elevation data processed by the filling method by using a D8 algorithm; determining river network data and a maximum pouring point according to the flow data, wherein a threshold value is set for the flow data, grid points higher than the threshold value are connected to obtain river network data, the connected grid points form water channels, the crisscrossed water channels form river network data, and the grid points at the intersection of the river network data are used as the maximum pouring point; dividing the area into a plurality of water collecting blocks according to the maximum pouring point and the flow direction data to serve as the grid;
the determining a hotspot grid of the plurality of grids further comprises: counting the number of pollution discharge units in each grid, and determining the grid with the number of the pollution discharge units exceeding a preset value as the hot spot grid; or, acquiring water quality parameters of a water inlet and a water outlet in each grid; and determining the grid with the water quality parameter higher than a threshold value as the hot spot grid.
2. The method for monitoring a water environment based on a hot spot grid according to claim 1, wherein the step of obtaining water quality monitoring analysis data in the hot spot grid comprises the steps of:
and acquiring water quality monitoring analysis data in the hot spot grid through monitoring equipment in the hot spot grid.
3. The method for monitoring a water environment based on a hot spot grid according to claim 1, wherein the step of obtaining water quality monitoring analysis data in the hot spot grid comprises the steps of:
and acquiring water quality monitoring analysis data in the hot spot grid in real time through satellite remote sensing data.
4. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the hotspot grid-based water environment monitoring method of any one of claims 1 to 3 when the program is executed by the processor.
5. A computer readable storage medium having stored thereon a processor program for performing the hotspot grid-based water environment monitoring method of any of the preceding claims 1 to 3.
6. A water environment monitoring device based on a hotspot grid, comprising:
the regional division module divides the region where the water environment is located into a plurality of grids, and comprises: determining flow direction data and flow data according to the topographic data of the area, wherein the topographic data of the area is digital elevation data, removing abnormal high values and abnormal low values in the digital elevation data by using a filling method, and processing the digital elevation data processed by the filling method by using a D8 algorithm; determining river network data and a maximum pouring point according to the flow data, wherein a threshold value is set for the flow data, grid points higher than the threshold value are connected to obtain river network data, the connected grid points form water channels, the crisscrossed water channels form river network data, and the grid points at the intersection of the river network data are used as the maximum pouring point; dividing the area into a plurality of water collecting blocks according to the maximum pouring point and the flow direction data to serve as the grid;
the hotspot grid determining module determines a hotspot grid in the plurality of grids, including: acquiring remote sensing data of satellites of the multiple grids; determining water quality parameters in the grids according to the remote sensing data; determining a grid with the water quality parameter higher than a threshold value as the hot spot grid; counting the number of pollution discharge units in each grid, and determining the grid with the number of the pollution discharge units exceeding a preset value as the hot spot grid; or, acquiring water quality parameters of a water inlet and a water outlet in each grid; determining a grid with the water quality parameter higher than a threshold value as the hot spot grid;
the monitoring analysis module is used for obtaining water quality monitoring analysis data in the hot spot grid;
the data analysis module is used for determining pollution events in the hot spot grids according to the water quality monitoring analysis data; if a contamination event occurs, an alarm is raised.
7. The hot spot grid-based water environment monitoring device according to claim 6, wherein the monitoring analysis module acquires water quality monitoring analysis data in the hot spot grid in real time through satellite remote sensing data.
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| CN110555586B (en) * | 2019-07-22 | 2023-07-14 | 北京英视睿达科技股份有限公司 | Ecological monitoring method and device based on hotspot grid |
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