A method, device, electronic device and storage medium for tracing the source of air pollution

Abstract

The embodiment of the present invention discloses a method, device, electronic device and storage medium for tracing the source of air pollution. The method includes: if gas exceeding standard information is received, then determine the target site where the gas exceeding standard information is collected; determine the target associated site according to the changing trend of the exceeding standard gas at the target site and the changing trend of the exceeding standard gas at the candidate associated site; determine the target grid area according to the changing trend of the exceeding standard gas at the target associated site and the changing trend of the exceeding standard gas in the candidate grid area; wherein the target associated site is associated with the geographical location of the candidate grid area, and the target associated site is associated with at least one candidate grid area; determine the pollution source according to the changing trend of the exceeding standard gas in the target grid area and the pre-stored pollutant emission information. By executing this scheme, it is possible to realize real-time and accurate positioning of the pollution source of air pollution, which can be beneficial to improving the efficiency and quality of environmental governance.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of environmental data processing, and in particular to a method, device, electronic device and storage medium for tracing the source of air pollution. Background Art

[0002] Since atmospheric movement is affected by factors such as heat, gradient force, friction, and terrain obstruction, a tortuous and complex flow field is formed. Pollutants also change dynamically along the trajectory of the transmitted air masses. The most difficult problem to solve in the process of atmospheric pollution monitoring and control is the source tracing problem.

[0003] In related technologies, solving the problem of tracing the source of air pollution mostly requires the use of various complex models or machine learning technologies; the application of new technologies often requires the collection of a large amount of monitoring data as a basis, and also requires supporting meteorological, surveying and mapping data. The calculation results of the model are often affected by a variety of input parameters, and the requirements for input data collection are very high, and a large amount of sample data is required as support, especially the application of machine learning. At the same time, the results of the analysis of historical data that has occurred show lag and cannot meet the needs of accurate real-time analysis. Summary of the invention

[0004] The embodiments of the present invention provide a method, device, electronic device and storage medium for tracing the source of air pollution, which can realize real-time and accurate positioning of the source of air pollution, thereby being conducive to improving the efficiency and quality of environmental governance.

[0005] In a first aspect, an embodiment of the present invention provides a method for tracing the source of air pollution, the method comprising: if gas exceeding standard information is received, determining a target site where the gas exceeding standard information is collected; wherein the gas exceeding standard information comprises: the category of the exceeding standard gas and the index value of the exceeding standard gas;

[0006] Determine the target associated site according to the excessive gas change trend of the target site and the excessive gas change trend of the candidate associated site; wherein the target site is associated with the candidate associated site in geographical location, and the target site is associated with at least one of the candidate associated sites;

[0007] Determine the target grid area according to the excessive gas change trend of the target associated site and the excessive gas change trend of the candidate grid area; wherein the target associated site is associated with the geographical location of the candidate grid area, and the target associated site is associated with at least one of the candidate grid areas;

[0008] The pollution source is determined based on the changing trend of the excessive gases in the target grid area and the pre-stored pollutant emission information.

[0009] In a second aspect, an embodiment of the present invention further provides an atmospheric pollution source tracing device, the device comprising: a target site determination module, for determining a target site where the gas exceeding standard information is collected if gas exceeding standard information is received; wherein the gas exceeding standard information comprises: an exceeding standard gas category and an exceeding standard gas index value;

[0010] A target associated site determination module, used to determine a target associated site according to a change trend of excessive gas at the target site and a change trend of excessive gas at the candidate associated sites; wherein the target site is associated with the geographic location of the candidate associated sites, and the target site is associated with at least one of the candidate associated sites;

[0011] a target grid area determination module, configured to determine a target grid area according to a change trend of excessive gas at the target associated site and a change trend of excessive gas in a candidate grid area; wherein the target associated site is associated with a geographical location of the candidate grid area, and the target associated site is associated with at least one of the candidate grid areas;

[0012] The pollution source determination module is used to determine the pollution source according to the change trend of the excessive gas in the target grid area and the pre-stored pollutant emission information.

[0013] In a third aspect, an embodiment of the present invention further provides an electronic device, including:

[0014] one or more processors;

[0015] a storage device for storing one or more programs,

[0016] When the one or more programs are executed by the one or more processors, the one or more processors implement the method for tracing the source of air pollution as described in any one of the embodiments of the present invention.

[0017] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a method for tracing the source of air pollution as described in any one of the embodiments of the present invention.

[0018] The technical solution provided by the embodiment of the present invention, if receiving gas exceeding standard information, then determining the target site where the gas exceeding standard information is collected; determining the target associated site according to the changing trend of the exceeding standard gas at the target site and the changing trend of the exceeding standard gas at the candidate associated site; determining the target grid area according to the changing trend of the exceeding standard gas at the target associated site and the changing trend of the exceeding standard gas in the candidate grid area; wherein the target associated site is associated with the geographical location of the candidate grid area, and the target associated site is associated with at least one candidate grid area; determining the pollution source according to the changing trend of the exceeding standard gas in the target grid area and the pre-stored pollutant emission information. By executing this solution, it is possible to realize real-time and accurate positioning of the pollution source of air pollution, which can be beneficial to improving the efficiency and quality of environmental governance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a flow chart of a method for tracing the source of air pollution provided by an embodiment of the present invention;

[0020] Figure 2 is a flow chart of another method for tracing the source of air pollution provided by an embodiment of the present invention;

[0021] Figure 3 This is a flow chart of another method for tracing the source of air pollution provided by an embodiment of the present invention;

[0022] Figure 4 It is a schematic diagram of an atmospheric pollution source tracing device provided by an embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0025] Figure 1 This is a flow chart of a method for tracing the source of air pollution provided by an embodiment of the present invention. The method can be executed by an air pollution tracing device, which can be implemented by software and / or hardware, and can be configured in an electronic device for tracing the source of air pollution. The method is applied to the scenario of locating the source of air pollution. Figure 1 As shown, the technical solution provided by the embodiment of the present invention specifically includes:

[0026] S110: If gas excess information is received, determine the target site where the gas excess information is collected.

[0027] The gas exceeding standard information includes: the category of the gas exceeding standard and the index value of the gas exceeding standard.

[0028] Exemplarily, the target site can be a site used for assessment by a local environmental protection department, the target site can be a national control site, the target site can be a provincial control site, or the target site can be a municipal control site. In the embodiment of the present invention, the target site is preferably a national control site. The target site can monitor the gas emissions of the station. If it is monitored that the gas emissions exceed the standard, the gas exceeding standard information is collected. The category of excessive gas can be an atmospheric pollutant with excessive emissions, such as NO, PM2.5, SO2, etc., and the index value can be the emission of excessive gas. This solution can highlight and highlight the corresponding position of the target site on the map where the gas exceeding standard information is collected through Geographic Information System (GIS) technology.

[0029] S120: Determine the target associated site according to the change trend of the excessive gas at the target site and the change trend of the excessive gas at the candidate associated sites.

[0030] The target site is geographically associated with the candidate associated sites, and the target site is associated with at least one of the candidate associated sites.

[0031] Specifically, the changing trend of the excessive gas can be a graph showing the change of the index value of the excessive gas over time. This scheme can simulate the changing trend of the excessive gas based on GIS technology. The candidate associated sites can be sites distributed around the target site, the candidate associated sites can be sites upwind of the target site, and the candidate associated sites can also be sites whose distance from the target site meets a preset distance, for example, the preset distance is 20m. The candidate associated sites can be set according to actual needs. This scheme can determine the target associated site based on the correlation coefficient between the changing trend of the excessive gas at the target site and the changing trend of the excessive gas at the candidate associated site, thereby determining the next-level pollution source of the target site and locating the pollution source to the provincial control station level.

[0032] S130: Determine the target grid area according to the change trend of the excessive gas at the target associated site and the change trend of the excessive gas in the candidate grid area.

[0033] The target associated site is associated with the geographic location of the candidate grid area, and the target associated site is associated with at least one of the candidate grid areas.

[0034] Specifically, the grid area can be a sub-area obtained by dividing the spatial range around the target associated site into units of 3 km × 3 km, and a small micro station is deployed in each grid area to monitor the gas emissions in the grid area. The candidate grid area can be a site distributed around the target associated site, the candidate grid area can be a site upwind of the target associated site, and the candidate grid area can also be a site whose distance from the target associated site meets a preset distance, for example, the preset distance is 20m. The candidate grid area can be set according to actual needs. This scheme can determine the target grid area based on the excessive gas change trend of the target associated site and the excessive gas change trend of the candidate grid area, thereby determining the next-level pollution source of the target associated site and locating the pollution source to the grid area level.

[0035] S140: Determine the pollution source according to the change trend of the excessive gas in the target grid area and the pre-stored pollutant emission information.

[0036] Specifically, this solution can monitor the pollutant emission information of all pollution sources in the target grid area in real time and store it in advance, and determine the pollution source based on the change trend of the excessive gas in the target grid area and the pre-stored pollutant emission information. For example, the pollution source can be determined based on the emission gas registered by the pollution source and the change trend of the excessive gas in the target grid area. The pollution source can also be determined based on the change trend of the excessive gas in the pollution source and the change trend of the excessive gas in the target grid area based on GIS technology, and then the pollution source can be located at the enterprise or user level.

[0037] The technical solution provided by the embodiment of the present invention, if receiving gas exceeding standard information, then determining the target site where the gas exceeding standard information is collected; determining the target associated site according to the changing trend of the exceeding standard gas at the target site and the changing trend of the exceeding standard gas at the candidate associated site; determining the target grid area according to the changing trend of the exceeding standard gas at the target associated site and the changing trend of the exceeding standard gas in the candidate grid area; wherein the target associated site is associated with the geographical location of the candidate grid area, and the target associated site is associated with at least one candidate grid area; determining the pollution source according to the changing trend of the exceeding standard gas in the target grid area and the pre-stored pollutant emission information. By executing this solution, it is possible to realize real-time and accurate positioning of the pollution source of air pollution, which can be beneficial to improving the efficiency and quality of environmental governance.

[0038] Figure 2 FIG. 1 is a flow chart of another method for tracing the source of air pollution provided by an embodiment of the present invention. This embodiment is optimized based on the above embodiment. Figure 2 As shown, the method for tracing the source of air pollution in the embodiment of the present invention may include:

[0039] S210: If gas excess information is received, determine the target site where the gas excess information is collected.

[0040] S220: Determine the target associated site based on the changing trend of the excessive gas at the target site and the changing trend of the excessive gas at the candidate associated sites.

[0041] In a feasible implementation, optionally, the process of determining candidate associated sites includes: determining the positional relationship between the target site and each of the associated sites based on GIS technology, the location data of the target site, and the location data of the associated sites; determining the candidate associated sites according to the positional relationship between the target site and each of the associated sites, the wind direction data of the target site, and the wind direction data of the associated sites.

[0042] Among them, the associated site can be a site located around the target site, such as a provincial control site. The location data can be a spatial geographic location coordinate, such as a longitude coordinate or a latitude coordinate. This solution can determine the positional relationship between the target site and each associated site on the map based on GIS technology, the location data of the target site, and the location data of the associated site. Among them, the positional relationship can be, for example, the relative distance between the target site and the associated site, or the direction of the target site relative to the associated site. This solution can display the wind direction data of each site on a map based on GIS technology. The wind direction data can be the longitude and latitude coordinates of the wind direction, such as 35 degrees east of west. Through the positional relationship between the target site and the associated site, the wind direction data of the target site, and the wind direction data of the associated site, it is possible to determine an associated site located on the wind direction of the target site that satisfies a certain distance relationship with the target site, that is, a candidate associated site.

[0043] Therefore, the positional relationship between the target site and each associated site is determined based on GIS technology, the location data of the target site and the location data of the associated sites; the candidate associated sites are determined according to the location relationship between the target site and each associated site, the wind direction data of the target site and the wind direction data of the associated sites, so as to achieve accurate positioning of the next level of pollution area, and thus determine the direction basis for accurately finding the source of pollution.

[0044] In another feasible embodiment, optionally, the process of determining the collection time of the change trend of the candidate associated sites includes: determining the positional relationship between the target site and each candidate associated site based on GIS technology; determining the collection time of the change trend of excessive gas at each candidate associated site based on the positional relationship between the target site and each candidate associated site, the wind direction data of the target site, and the wind direction data of each candidate associated site.

[0045] Among them, the number of candidate associated sites is at least 1, and the positional relationship between different candidate associated sites and the target site is not the same. Among them, the positional relationship can be, for example, the relative distance between the target site and the candidate associated site, or the positional relationship can also be the direction of the target site relative to the candidate associated site, and the positional relationship can be set according to actual needs. This scheme can display the wind direction data of each site on a map based on GIS technology. The wind direction data can be the latitude and longitude coordinates of the wind direction, such as 35 degrees east of west. The wind direction data can also be the wind speed, and the wind speed can be the instantaneous wind speed or the average wind speed over a period of time. The wind direction data can be set according to actual needs. This scheme can determine the time when the pollutants of each candidate associated site are blown to the target site by the wind through the distance between the target site and the candidate associated site, the wind direction data of the target site, and the wind direction data of the candidate associated site, and then determine the collection time of the excessive gas change trend of each candidate associated site. For example, by calculating that the time for pollutants from candidate associated site 1 to reach the target site is 1 minute, and the time for pollutants from candidate associated site 2 to reach the target site is 5 minutes, the excessive gas change trend of the target site within 30 minutes before the current time is selected. Then, the time period from 31 minutes before the current time to 1 minute before the current time can be selected as the collection time for the excessive gas change trend of candidate associated site 1, and the time period from 35 minutes before the current time to 5 minutes before the current time can be selected as the collection time for the excessive gas change trend of candidate associated site 2.

[0046] Therefore, the positional relationship between the target site and each candidate associated site is determined based on GIS technology; the excessive gas change trend collection time of each candidate associated site is determined based on the positional relationship between the target site and each candidate associated site, the wind direction data of the target site, and the wind direction data of each candidate associated site. It is possible to determine the excessive gas change trend collection time of the candidate associated site according to actual needs, making the calculation process closer to the actual data, which can be beneficial to the accurate positioning of the next level of pollution area, and then determine the direction basis for accurately finding the pollution source.

[0047] In this embodiment, optionally, determining the target associated site includes: determining a change trend correlation value based on the excessive gas change trend of the target site and the excessive gas change trend of the candidate associated site; if the change trend correlation value satisfies a first preset constraint condition, determining the candidate associated site as the target associated site.

[0048] Specifically, this solution can generate the excessive gas change trend of the target site based on GIS technology, such as the excessive gas change curve of the target site. It can also generate the excessive gas change trend of the candidate associated site and the excessive gas change curve of the candidate associated site based on GIS technology. Then fit the two curves to obtain the change trend correlation value. Among them, the change trend correlation value reflects the similarity of the change trends between the two curves. The larger the change trend correlation value, the more consistent the excessive gas change process of the two sites, and the greater the possibility that the candidate associated site is a polluted area. The first preset constraint condition can be 90%, and the first preset constraint condition can also be 95%. The first preset constraint condition can be set according to actual needs.

[0049] Therefore, the change trend correlation value is determined based on the change trend of the excessive gas at the target site and the change trend of the excessive gas at the candidate associated site; if the change trend correlation value meets the first preset constraint condition, the candidate associated site is determined as the target associated site. This can achieve accurate positioning of the next level of pollution area, and then determine the direction basis for accurately finding the pollution source.

[0050] S230: Determine the target grid area according to the change trend of the excessive gas at the target associated site and the change trend of the excessive gas in the candidate grid area.

[0051] In this embodiment, optionally, the process of determining the candidate grid area includes: determining the positional relationship between the target associated site and each of the associated grid areas based on GIS technology, the location data of the target associated site, and the location data of the associated grid areas; determining the candidate grid area according to the positional relationship between the target associated site and each of the associated grid areas, the wind direction data of the target associated site, and the wind direction data of each of the associated grid areas.

[0052] Among them, the associated grid area can be a site located around the target associated site, such as a small micro site. The location data can be a spatial geographic location coordinate, such as a longitude coordinate or a latitude coordinate. This solution can determine the positional relationship between the target associated site and each associated grid area on the map based on GIS technology, the location data of the target associated site, and the location data of the associated grid area. Among them, the positional relationship can be, for example, the relative distance between the target associated site and the associated grid area, or the direction of the target associated site relative to the associated grid area. This solution can display the wind direction data of each site on the map based on GIS technology, and the wind direction data can be the longitude and latitude coordinates of the wind direction, such as 35 degrees east of west. Through the positional relationship between the target associated site and the associated grid area, the wind direction data of the target associated site, and the wind direction data of the associated grid area, it is possible to determine the associated grid area located upwind of the target associated site and whose distance from the target associated site meets a certain distance relationship, that is, the candidate grid area.

[0053] Therefore, the positional relationship between the target associated site and each associated grid area is determined based on GIS technology, the location data of the target associated site and the location data of the associated grid area; the candidate grid area is determined according to the location relationship between the target associated site and each associated grid area, the wind direction data of the target associated site and the wind direction data of each associated grid area, so as to achieve accurate positioning of the next level of pollution area, and then determine the direction basis for accurately finding the source of pollution.

[0054] S240: Generate the excessive gas change trend in the target grid area based on GIS technology.

[0055] Specifically, based on GIS technology, at the corresponding position of the target grid area on the map, the excessive gas change trend for the target grid area, such as a change curve graph, is generated according to the real-time emission of excessive gas in the target grid area sent by the acquired micro-station.

[0056] S250: Determine the changing trend of excessive gases in each suspected pollution source within the target grid area based on GIS technology and pre-stored pollutant emission information.

[0057] Among them, all pollution sources located in the target grid area, that is, suspected pollution sources, can be determined based on GIS technology, and the excessive gas emission trends of each suspected pollution source, such as a change curve chart, can be generated at the positions corresponding to each suspected pollution source on the map according to the excessive gas emissions of each suspected pollution source monitored in real time.

[0058] S260: If the changing trend of the excessive gas in the target grid area and the changing trend of the excessive gas in the suspected pollution source meet the second preset constraint condition, the suspected pollution source is determined to be the pollution source.

[0059] Among them, this scheme can determine the change trend correlation value based on the change trend of the excessive gas in the target grid area and the change trend of the excessive gas in the suspected pollution source. Among them, the change trend correlation value reflects the similarity of the change trends between the two curves. The larger the change trend correlation value, the more consistent the excessive gas change process of the two sites is, and the greater the possibility that the suspected pollution source is the pollution source. The second preset constraint condition can be 90%, and the second preset constraint condition can also be 95%. The second preset constraint condition can be set according to actual needs.

[0060] In another feasible implementation, optionally, after determining the pollution source, the method further includes: visually displaying the pollution source based on GIS technology.

[0061] Specifically, after the pollution source of excessive gas is determined, this solution can display the corresponding position of the pollution source on the map based on GIS technology, for example, it can be highlighted or highlighted with a darker color, so that users can intuitively locate the specific geographical location of the pollution source, and can provide a user-friendly user experience.

[0062] The technical solution provided by the embodiment of the present invention determines the target site where the gas excess information is collected if gas excess information is received; determines the target associated site according to the excessive gas change trend of the target site and the excessive gas change trend of the candidate associated site; determines the target grid area according to the excessive gas change trend of the target associated site and the excessive gas change trend of the candidate grid area; generates the excessive gas change trend of the target grid area based on GIS technology; determines the excessive gas change trend of each suspected pollution source in the target grid area based on GIS technology and pre-stored pollutant emission information; if the excessive gas change trend of the target grid area and the excessive gas change trend of the suspected pollution source meet the second preset constraint condition, determines the suspected pollution source as the pollution source. By executing this solution, it is possible to achieve real-time and accurate positioning of the pollution source of air pollution, which can be beneficial to improving the efficiency and quality of environmental governance.

[0063] The most difficult problem to solve in the process of air pollution monitoring and control is the source tracing problem. Since atmospheric movement is affected by factors such as heat, gradient force, friction, and terrain obstruction, a tortuous and complex flow field is formed. Pollutants also change dynamically along the trajectory of the transmitted air masses, making real-time and accurate source tracing even more difficult.

[0064] Most of the traceability methods in related technologies require the use of various complex models, or even machine learning techniques; the application of these new technologies often requires the collection of a large amount of monitoring data as a basis, and also requires supporting meteorological, surveying and mapping data. The model calculation results are often affected by a variety of input parameters, and the requirements for input data collection are very high, and a large amount of sample data is required as support, especially for the application of machine learning. At the same time, the results of the analysis of historical data that has occurred show lag, which cannot meet the needs of quasi-real-time analysis.

[0065] Figure 3 Flow chart of the method for tracing the source of air pollution provided by an embodiment of the present invention. In order to more clearly describe the technical solution of the present invention, Figure 3 As shown, the technical solution provided by the embodiment of the present invention may include the following steps:

[0066] Step 1: If gas exceeding standard information is received, determine the target site where the gas exceeding standard information is collected.

[0067] Among them, this solution can, for example, conduct real-time monitoring at the minute level for state-controlled gas stations that are the focus of supervision, and issue real-time alarms for state-controlled gas stations that exceed the standards.

[0068] Step 2: Determine the target associated site based on the excessive gas change trend of the target site and the excessive gas change trend of the candidate associated sites.

[0069] Among them, this solution can, for example, combine wind direction and wind speed information to analyze the changing trend of excessive gases at upwind and downwind candidate associated sites, and find out the target associated sites that have a positive correlation effect.

[0070] Step 3: Determine the target grid area according to the excessive gas change trend of the target associated site and the excessive gas change trend of the candidate grid area.

[0071] Step 4: Obtain the pollution source area through the changing trend of the excessive gases in the target grid area.

[0072] Step 5: Online monitoring of pollution sources in the source area and calculation of the pollution contribution ranking of the pollution sources.

[0073] Among them, the pollution source can be an enterprise.

[0074] Step 6: Further narrow the scope by analyzing the characteristic factors of pollution emissions from pollution sources within the source area.

[0075] Step 7: Quickly obtain accurate areas and a list of key suspected pollution sources.

[0076] The technical solution provided by the embodiment of the present invention realizes minute-level accurate analysis of atmospheric pollution source tracing by comprehensively utilizing the monitoring data of various atmospheric monitoring stations, combined with meteorological and pollution source online monitoring. Since atmospheric grid monitoring data is affected by factors such as equipment accuracy, there is a large gap between its monitoring value and the monitoring of atmospheric station equipment. This solution uses the changing trend of grid monitoring points to judge the fluctuation of environmental pollution factors, and combines automatic monitoring of pollution sources, pollution source emission characteristic factors and other means to realize rapid and accurate positioning of pollution sources.

[0077] Compared with the existing atmospheric pollution source tracing analysis technology, the technical solution of the embodiment of the present invention is based on the minute data of the national control station under assessment as the monitoring object, and conducts real-time dynamic monitoring of the station factors to promptly discover problems at the assessment monitoring points. At the same time, a multi-level monitoring point step-by-step analysis method is adopted, and atmospheric grid real-time monitoring data is introduced, and the source of pollution is assisted by its dynamic changes. The real-time data of online monitoring of pollution sources is used in conjunction with atmospheric point monitoring data, so that quasi-real-time and accurate tracing analysis can be achieved.

[0078] Figure 4 FIG. 1 is a schematic diagram of an air pollution tracing device provided by an embodiment of the present invention. The device can be configured in an electronic device for tracing the air pollution. Figure 4 As shown, the device comprises:

[0079] The target site determination module 410 determines the target site where the gas exceeding standard information is collected if the gas exceeding standard information is received; wherein the gas exceeding standard information includes: the exceeding standard gas category and the exceeding standard gas index value;

[0080] The target associated site determination module 420 is used to determine the target associated site according to the excessive gas change trend of the target site and the excessive gas change trend of the candidate associated site; wherein the target site is associated with the candidate associated site in geographical location, and the target site is associated with at least one of the candidate associated sites;

[0081] The target grid area determination module 430 is used to determine the target grid area according to the excessive gas change trend of the target associated site and the excessive gas change trend of the candidate grid area; wherein the target associated site is associated with the geographical location of the candidate grid area, and the target associated site is associated with at least one of the candidate grid areas;

[0082] The pollution source determination module 440 is used to determine the pollution source according to the change trend of the excessive gas in the target grid area and the pre-stored pollutant emission information.

[0083] Optionally, the target associated site determination module 420 is specifically used to determine the positional relationship between the target site and each of the associated sites based on GIS technology, the location data of the target site and the location data of the associated sites; and determine the candidate associated sites according to the positional relationship between the target site and each of the associated sites, the wind direction data of the target site and the wind direction data of the associated sites.

[0084] Optionally, the target associated site determination module 420 is specifically used to determine the positional relationship between the target site and each candidate associated site based on GIS technology; based on the positional relationship between the target site and each candidate associated site, the wind direction data of the target site and the wind direction data of each candidate associated site, determine the excessive gas change trend collection time of each candidate associated site.

[0085] Optionally, the target associated site determination module 420 is specifically used to determine a change trend correlation value based on the excessive gas change trend of the target site and the excessive gas change trend of the candidate associated site; if the change trend correlation value satisfies a first preset constraint condition, the candidate associated site is determined to be the target associated site.

[0086] Optionally, the target grid area determination module 430 is specifically used to determine the positional relationship between the target associated site and each of the associated grid areas based on GIS technology, the location data of the target associated site, and the location data of the associated grid areas; and determine the candidate grid area according to the positional relationship between the target associated site and each of the associated grid areas, the wind direction data of the target associated site, and the wind direction data of each of the associated grid areas.

[0087] Optionally, the pollution source determination module 440 is specifically used to generate the excessive gas change trend of the target grid area based on GIS technology; determine the excessive gas change trend of each suspected pollution source in the target grid area based on GIS technology and pre-stored pollutant emission information; if the excessive gas change trend of the target grid area and the excessive gas change trend of the suspected pollution source meet the second preset constraint condition, the suspected pollution source is determined to be the pollution source.

[0088] Optionally, the device further includes a display module for visually displaying the pollution source based on GIS technology after the pollution source is determined.

[0089] The device provided in the above-mentioned embodiments can execute the method for tracing the source of air pollution provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0090] Figure 5 is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention, such as Figure 5 As shown, the device includes:

[0091] one or more processors 510, Figure 5 A processor 510 is taken as an example;

[0092] Memory 520;

[0093] The device may further include: an input device 530 and an output device 540 .

[0094] The processor 510, memory 520, input device 530 and output device 540 in the device may be connected via a bus or other means. Figure 5 The example of connecting through bus is taken in the following.

[0095] The memory 520, as a non-transitory computer-readable storage medium, can be used to store software programs, computer executable programs and modules, such as program instructions / modules corresponding to a method for tracing the source of air pollution in an embodiment of the present invention. The processor 510 executes various functional applications and data processing of the computer device by running the software programs, instructions and modules stored in the memory 520, that is, to implement a method for tracing the source of air pollution in the above method embodiment, namely:

[0096] If gas exceeding standard information is received, the target site where the gas exceeding standard information is collected is determined; wherein the gas exceeding standard information includes: the category of the exceeding standard gas and the index value of the exceeding standard gas;

[0097] Determine the target associated site according to the excessive gas change trend of the target site and the excessive gas change trend of the candidate associated site; wherein the target site is associated with the candidate associated site in geographical location, and the target site is associated with at least one of the candidate associated sites;

[0098] Determine the target grid area according to the excessive gas change trend of the target associated site and the excessive gas change trend of the candidate grid area; wherein the target associated site is associated with the geographical location of the candidate grid area, and the target associated site is associated with at least one of the candidate grid areas;

[0099] The pollution source is determined based on the changing trend of the excessive gases in the target grid area and the pre-stored pollutant emission information.

[0100] The memory 520 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 520 may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one disk storage device, a flash memory device, or other non-transitory solid-state storage device. In some embodiments, the memory 520 may optionally include a memory remotely arranged relative to the processor 510, and these remote memories may be connected to the terminal device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0101] The input device 530 may be used to receive input digital or character information and generate key signal input related to user settings and function control of the computer device. The output device 540 may include a display device such as a display screen.

[0102] An embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, a method for tracing the source of air pollution provided in an embodiment of the present invention is implemented:

[0103] If gas exceeding standard information is received, the target site where the gas exceeding standard information is collected is determined; wherein the gas exceeding standard information includes: the category of the exceeding standard gas and the index value of the exceeding standard gas;

[0104] Determine the target associated site according to the excessive gas change trend of the target site and the excessive gas change trend of the candidate associated site; wherein the target site is associated with the candidate associated site in geographical location, and the target site is associated with at least one of the candidate associated sites;

[0105] Determine the target grid area according to the excessive gas change trend of the target associated site and the excessive gas change trend of the candidate grid area; wherein the target associated site is associated with the geographical location of the candidate grid area, and the target associated site is associated with at least one of the candidate grid areas;

[0106] The pollution source is determined based on the changing trend of the excessive gases in the target grid area and the pre-stored pollutant emission information.

[0107] Any combination of one or more computer-readable media may be used. A computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, device, or device.

[0108] Computer-readable signal media may include a data signal propagated in baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0109] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0110] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0111] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A method for tracing the source of air pollution, characterized in that: include: If gas exceeding standard information is received, the target site where the gas exceeding standard information is collected is determined; wherein the gas exceeding standard information includes: the category of the exceeding standard gas and the index value of the exceeding standard gas; Determine the target associated site according to the excessive gas change trend of the target site and the excessive gas change trend of the candidate associated site; wherein the target site is associated with the candidate associated site in geographical location, and the target site is associated with at least one of the candidate associated sites; Determine the target grid area according to the excessive gas change trend of the target associated site and the excessive gas change trend of the candidate grid area; wherein the target associated site is associated with the geographical location of the candidate grid area, and the target associated site is associated with at least one of the candidate grid areas; Determine the pollution source according to the change trend of the excessive gas in the target grid area and the pre-stored pollutant emission information; The process of determining the candidate associated sites includes: Determine the positional relationship between the target site and each of the associated sites based on GIS technology, the position data of the target site and the position data of the associated sites; Determining candidate associated sites according to the positional relationship between the target site and each of the associated sites, the wind direction data of the target site, and the wind direction data of the associated sites; The GIS technology is used to highlight and highlight the corresponding positions of the target sites where the gas exceeding standard information is collected on the map.

2. The method according to claim 1, characterized in that The process of determining the collection time of the change trend of candidate associated sites includes: Determine the location relationship between the target site and each candidate associated site based on GIS technology; Based on the positional relationship between the target site and each candidate associated site, the wind direction data of the target site and the wind direction data of each candidate associated site, the excessive gas change trend collection time of each candidate associated site is determined.

3. The method according to claim 1, characterized in that Identify target associated sites, including: Determine a change trend correlation value based on the change trend of excessive gas at the target site and the change trend of excessive gas at the candidate associated site; If the change trend related value satisfies a first preset constraint condition, the candidate associated site is determined to be a target associated site.

4. The method according to claim 1, characterized in that: The process of determining the candidate grid area includes: Determine the positional relationship between the target associated site and each associated grid area based on GIS technology, the position data of the target associated site and the position data of the associated grid area; The candidate grid area is determined according to the positional relationship between the target associated site and each of the associated grid areas, the wind direction data of the target associated site, and the wind direction data of each of the associated grid areas.

5. The method according to claim 1, characterized in that According to the excessive gas change trend in the target grid area and the pre-stored pollutant emission information, the pollution source is determined, including: Generate the excessive gas trend in the target grid area based on GIS technology; Determine the changing trend of excessive gases from each suspected pollution source in the target grid area based on GIS technology and pre-stored pollutant emission information; If the change trend of the excessive gas in the target grid area and the change trend of the excessive gas in the suspected pollution source meet the second preset constraint condition, the suspected pollution source is determined to be the pollution source.

6. The method according to claim 1, characterized in that After the pollution source is identified, it also includes: The pollution sources are visualized based on GIS technology.

7. A device for tracing the source of air pollution, characterized in that: include: A target site determination module is used to determine the target site where the gas exceeding standard information is collected if the gas exceeding standard information is received; wherein the gas exceeding standard information includes: the category of the exceeding standard gas and the index value of the exceeding standard gas; A target associated site determination module, used to determine a target associated site according to a change trend of excessive gas at the target site and a change trend of excessive gas at the candidate associated sites; wherein the target site is associated with the geographic location of the candidate associated sites, and the target site is associated with at least one of the candidate associated sites; a target grid area determination module, configured to determine a target grid area according to a change trend of excessive gas at the target associated site and a change trend of excessive gas in a candidate grid area; wherein the target associated site is associated with a geographical location of the candidate grid area, and the target associated site is associated with at least one of the candidate grid areas; A pollution source determination module, used to determine the pollution source according to the change trend of the excessive gas in the target grid area and the pre-stored pollutant emission information; The target associated site determination module is specifically used to determine the positional relationship between the target site and each of the associated sites based on GIS technology, the position data of the target site and the position data of the associated sites; determine the candidate associated sites according to the positional relationship between the target site and each of the associated sites, the wind direction data of the target site and the wind direction data of the associated sites; The GIS technology is used to highlight and highlight the corresponding positions of the target sites where the gas exceeding standard information is collected on the map.

8. An electronic device, characterized in that: include: one or more processors; a storage device for storing one or more programs, When the one or more programs are executed by the one or more processors, the one or more processors implement the method for tracing the source of air pollution as described in any one of claims 1-6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method for tracing the source of air pollution as described in any one of claims 1 to 6 is implemented.

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