CN115082546B - Method and device for determining pollutant discharge amount, electronic equipment and medium - Google Patents
Method and device for determining pollutant discharge amount, electronic equipment and medium Download PDFInfo
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Abstract
The application discloses a method and a device for determining pollutant discharge amount, electronic equipment and a medium. By applying the technical scheme of the application, the urban pollution area can be determined by analyzing the high-resolution remote sensing image of the urban area to be detected, and the non-urban pollution area can be determined by analyzing the low-resolution remote sensing image and combining the analysis with the related rationalization calculation factor. And automatically obtaining the pollutant discharge amount matched with the total pollution area by using a preset discharge factor. Therefore, the purposes that the emission is easy to obtain and the data is accurate are achieved by a method of combining the high-resolution remote sensing image with the medium-low resolution remote sensing image interpretation. And further, the defect that the time consumption is long when the pollutant discharge amount of a certain area is obtained only by a manual on-site investigation statistical method in the related technology is overcome.
Description
Technical Field
The present application relates to data processing technologies, and in particular, to a method, an apparatus, an electronic device, and a medium for determining pollutant emission.
Background
Particulate matter is an important pollutant of the atmosphere, which is the solid part of the atmospheric aerosol, and is classified by its aerodynamic particle size into three categories, total suspended particulate matter (TSP), respirable particulate matter (PM 10), and fine particulate matter (PM 2.5). Particulate matter presents a serious health and environmental hazard, can cause increased cardiopulmonary morbidity and mortality, and can adversely affect atmospheric visibility and climate change.
At present, in the process of calculating the emission of construction dust, the emission is usually counted by adopting a manual on-site investigation mode. However, although the statistical method of manually conducting on-site research can obtain the emission amount and emission characteristics of the construction dust, the construction dust is an unorganized emission source and has great uncertainty of time-space variation, so the on-site research statistical method has the disadvantages of long time consumption, low efficiency, high investigation cost and the like.
Disclosure of Invention
The embodiment of the application provides a method and a device for determining pollutant emission, electronic equipment and a medium. The method is used for solving the defect of long time consumption existing in the prior art that the pollutant discharge amount of a certain area can be obtained only by a manual on-site investigation statistical method.
According to an aspect of an embodiment of the present application, there is provided a method for determining an amount of pollutant emission, including:
acquiring a high-resolution remote sensing image obtained by shooting a specific area in an area to be detected and acquiring a low-resolution remote sensing image obtained by shooting a whole area in the area to be detected, wherein the area to be detected consists of the specific area and a non-specific area;
analyzing the low-resolution remote sensing image to obtain the total built-up area corresponding to the area to be detected; analyzing the high-resolution remote sensing image to obtain a specific pollution source area corresponding to the specific area, wherein the total built-up area comprises a specific built-up area corresponding to the specific area and a non-specific built-up area corresponding to the non-specific area;
and determining the pollutant discharge amount corresponding to the area to be detected based on the specific pollution source area corresponding to the specific built-up area and the non-specific pollution source area corresponding to the non-specific built-up area.
Optionally, in another embodiment based on the foregoing method of the present application, after the obtaining the high-resolution remote sensing image and the low-resolution remote sensing image obtained by shooting the region to be detected, the method further includes:
utilizing ENVI software to carry out image preprocessing on the high-resolution remote sensing image and the low-resolution remote sensing image, wherein the image preprocessing comprises radiometric calibration, atmospheric correction and cutting processing;
and the image preprocessing is used for eliminating atmospheric parameters and illumination parameters in the high-resolution remote sensing image and the low-resolution remote sensing image.
Optionally, in another embodiment based on the foregoing method of the present application, the analyzing the high-resolution remote sensing image to obtain a specific pollution source area corresponding to the specific area includes:
analyzing the high-resolution remote sensing image based on a visual interpretation method to obtain a pollution target object existing in the specific area;
taking an area within a preset range from the pollution target object as the area of the specific pollution source;
optionally, in another embodiment based on the foregoing method of the present application, the analyzing the low-resolution remote sensing image to obtain an area of a built-up area corresponding to the area to be detected includes:
classifying the land types of the to-be-detected region contained in the low-resolution remote sensing image based on a maximum likelihood classification method, determining the specific built-up region area corresponding to the specific region based on a classification result, and determining the non-specific built-up region area corresponding to the non-specific region;
and obtaining a proportionality coefficient for representing the ratio of the pollution source to the specific built-up area in the specific area based on the specific pollution source area and the specific built-up area.
Optionally, in another embodiment of the method according to the present application, the determining, based on the total built-up area and the specific pollution source area, the pollutant discharge amount corresponding to the area to be detected includes:
acquiring a preset proportionality coefficient, wherein the proportionality coefficient is used for representing the ratio of a pollution source to the area of a specific built-up area in the specific area;
determining a non-specific area of a contamination source in the non-specific region based on the scaling factor and the non-specific build-up region area;
and determining the pollutant discharge amount corresponding to the area to be detected based on the specific pollution source area and the non-specific pollution source area.
Optionally, in another embodiment based on the method of the present application, the determining, based on the specific pollution source area and the non-specific pollution source area, an amount of pollutant emission corresponding to the area to be detected includes:
calculating the sum of the area of the specific pollution source and the area of the non-specific pollution source to obtain the total area of the pollution source corresponding to the area to be detected;
and determining the pollutant discharge amount corresponding to the area to be detected based on the total pollution source area and a discharge factor, wherein the discharge factor is used for representing the incidence relation between the pollution source area and the pollutant discharge amount.
Optionally, in another embodiment based on the above method of the present application, the pollutant discharge amount corresponding to the area to be detected is calculated based on the following formula:
W ci ＝E ci ×A c ×T；
wherein the WCi represents the pollutant emission amount, the ECi represents the emission factor, the AC represents the pollutant source area, and the T represents the pollution active period of the pollutant.
Optionally, in another embodiment based on the above method of the present application, the specific area is an urban area in the area to be detected; and the non-specific area is a suburban area in the area to be detected.
According to another aspect of an embodiment of the present application, there is provided a device for determining an amount of pollutant emissions, including:
the device comprises an acquisition module and a detection module, wherein the acquisition module is configured to acquire a high-resolution remote sensing image obtained by shooting a specific area in an area to be detected and acquire a low-resolution remote sensing image obtained by shooting a whole area in the area to be detected, and the area to be detected consists of the specific area and a non-specific area;
the calculation module is configured to analyze the low-resolution remote sensing image to obtain an overall built-up area corresponding to the area to be detected; analyzing the high-resolution remote sensing image to obtain a specific pollution source area corresponding to the specific area, wherein the total built-up area comprises a specific built-up area corresponding to the specific area and a non-specific built-up area corresponding to the non-specific area;
the determining module is configured to determine the pollutant discharge amount corresponding to the area to be detected based on a specific pollution source area corresponding to the specific built-up area and a non-specific pollution source area corresponding to the non-specific built-up area.
According to another aspect of the embodiments of the present application, there is provided an electronic device including:
a memory for storing executable instructions; and
and the display is used for being matched with the memory to execute the executable instructions so as to complete the operation of any one of the determination methods of the pollutant discharge amount.
According to still another aspect of the embodiments of the present application, there is provided a computer-readable storage medium for storing computer-readable instructions, which when executed, perform the operations of any one of the above methods for determining pollutant emission amount.
In the method, a high-resolution remote sensing image obtained by shooting a specific area in a region to be detected and a low-resolution remote sensing image obtained by shooting a whole area in the region to be detected are obtained, wherein the region to be detected consists of the specific area and a non-specific area; analyzing the low-resolution remote sensing image to obtain the total built-up area corresponding to the area to be detected; analyzing the high-resolution remote sensing image to obtain a specific pollution source area corresponding to a specific area, wherein the total built-up area comprises a specific built-up area corresponding to the specific area and a non-specific built-up area corresponding to the non-specific area; and determining the pollutant discharge amount corresponding to the area to be detected based on the total built-up area and the specific pollution source area. By applying the technical scheme of the application, the urban polluted area and the non-urban polluted area of the area can be automatically determined by analyzing the remote sensing image of the area to be detected. And automatically obtaining the pollutant discharge amount matched with the total pollution area by using a preset discharge factor. Therefore, the method for combining the high-resolution remote sensing image with the medium-low resolution remote sensing image interpretation is realized to achieve the purposes of easy acquisition of emission and accurate data. And further, the defect that the time consumption is long when the pollutant discharge amount of a certain area is obtained only by a manual on-site investigation statistical method in the related technology is overcome.
The technical solution of the present application is further described in detail by the accompanying drawings and examples.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
The present application may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:
fig. 1 is a schematic diagram of a method for determining pollutant emission according to the present application;
fig. 2 is a schematic flow chart of a method for determining pollutant emission according to the present application;
FIG. 3 is a schematic diagram of the present application illustrating the identification of non-specific areas using low resolution remote sensing images;
fig. 4 is a schematic diagram illustrating a specific area identification method using a high-resolution remote sensing image according to the present application;
fig. 5 is a schematic structural diagram of an electronic device for determining pollutant emission according to the present application;
fig. 6 is a schematic structural diagram of an electronic device for determining pollutant emission amount according to the present application.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.
Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In addition, technical solutions between the various embodiments of the present application may be combined with each other, but it must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should be considered to be absent and not within the protection scope of the present application.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the present embodiment are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
A method for determining the amount of pollutant emissions according to an exemplary embodiment of the present application is described below with reference to fig. 1 to 4. It should be noted that the following application scenarios are merely illustrated for facilitating understanding of the spirit and principles of the present application, and the embodiments of the present application are not limited in any way in this respect. Rather, embodiments of the present application may be applied to any scenario where applicable.
The application also provides a method and a device for determining the pollutant emission amount, electronic equipment and a medium.
Fig. 1 schematically shows a flow chart of a method for determining the amount of pollutant emission according to an embodiment of the present application. As shown in fig. 1, the method includes:
s101, acquiring a high-resolution remote sensing image obtained by shooting a specific area in a to-be-detected area, and acquiring a low-resolution remote sensing image obtained by shooting a whole area in the to-be-detected area, wherein the to-be-detected area consists of the specific area and a non-specific area.
Further, particulates are important pollutants of the atmosphere, which are the solid portion of an atmospheric aerosol, classified by their aerodynamic particle size into Total Suspended Particulates (TSP), respirable particulates (PM 10), and fine particulates (PM 2.5).
As will be appreciated, particulate matter presents a serious health and environmental hazard, can cause increased cardiopulmonary morbidity and mortality, and adversely affects atmospheric visibility and climate change. In a possible implementation scene, construction dust is an important component of atmospheric particulate matter, and from the analysis result of the source of inhalable particulate matter (PM 10) of each city, the proportion of the inhalable particulate matter (PM 10) of the dust in the northern cities in China is about 50%. With the continuous acceleration of urbanization process in China, the urban area in China is expanded by nearly 3 times in 1990 to 2010. The rapid urbanization construction inevitably leads to serious construction raise dust pollution.
Therefore, pollutants such as construction dust and the like are important components of urban dust. A construction raise dust emission list needs to be established, and basic data support is provided for raise dust prevention and control and an air quality model.
At present, in the process of calculating the emission of particulate matters, the emission is counted by adopting a manual field investigation mode. However, although the statistical method of manually conducting on-site research can obtain the emission amount and emission characteristics of the construction dust, the construction dust is an unorganized emission source and has great uncertainty of time-space variation, so the on-site research statistical method has the disadvantages of long time consumption, low efficiency, high investigation cost and the like.
In order to solve the problems, the application provides a method for achieving the purposes of easily obtaining the emission and accurately obtaining the data by combining the high-resolution remote sensing image with the interpretation of the medium-low resolution remote sensing image.
In one approach, the contaminants set forth herein may include a variety of parameters. For example, according to national standards, urban sources of atmospheric pollutants emission can be classified into the following ten categories: the method comprises the following steps of fixed combustion of fossil fuel, a technological process source, a mobile source, solvent use, an agricultural source, a dust source, biomass combustion, oil and gas storage and transportation, waste treatment and a catering source. Wherein, the raise dust source divide into soil raise dust, road raise dust, construction raise dust and storage yard raise dust, and the pollutant that the construction raise dust discharged can divide into following three kinds: TSP, PM10, PM2.5
S102, analyzing the low-resolution remote sensing image to obtain a total built-up area corresponding to the area to be detected; and analyzing the high-resolution remote sensing image to obtain the specific pollution source area corresponding to the specific area, wherein the total built-up area comprises the specific built-up area corresponding to the specific area and the non-specific built-up area corresponding to the non-specific area.
In the embodiment of the application, a remote sensing camera can be used for acquiring a low-resolution remote sensing image of landsat 8 (30 m) and a remote sensing image of world-view2 with high resolution (0.5 m), which are obtained by shooting an area to be detected (including, for example, a specific area of an urban area and a non-specific area of a suburban area of a certain city).
In one mode, the low-resolution remote sensing image provided by the embodiment of the present application may be a remote sensing image of landsat 8 (30 m). And the high-resolution remote sensing image can be world-view2 high-resolution (0.5 m) remote sensing image.
In one manner, the specific area proposed in the embodiment of the present application may be an urban area in an area to be detected; and the non-specific area is a suburban area in the area to be detected.
S103, determining the pollutant discharge amount corresponding to the area to be detected based on the specific pollution source area corresponding to the specific built-up area and the non-specific pollution source area corresponding to the non-specific built-up area.
As an example, the following describes the steps of a method for determining the amount of pollutants provided by the present application:
step 1, acquiring a low-resolution remote sensing image of a landsat 8 (30 m) and a remote sensing image of world-view2 with high resolution (0.5 m) which are obtained by shooting an area to be detected (including a specific area of an urban area and a non-specific area of a suburban area of a certain city).
And 2, respectively preprocessing the high-resolution remote sensing image and the low-resolution remote sensing image by utilizing ENVI software.
And 3, identifying the land utilization type of the low-resolution remote sensing image (such as landsat 8 (30 m)) by adopting a maximum class likelihood method in supervision and classification, and further acquiring the established area of the corresponding urban area and the established area of the suburban area (namely the specific established area corresponding to the specific area and the non-specific established area corresponding to the non-specific area).
And 4, adopting a manual visual interpretation method. The high-resolution remote sensing image (such as world-view2 high-resolution (0.5 m)) in the urban area (namely a specific area) is used for acquiring the pollution source area (such as the area of an active building site).
And 5, calculating a proportionality coefficient of the ratio of the area of the pollution source of the urban area to the area of the established urban area in the area to be detected (for example, the total area of the urban area is 1000 square meters, the area of the pollution source is 20 square meters, and the proportionality coefficient of the area of the pollution source of the urban area to the established urban area is 50 times smaller) based on the result of the step 3.
And 6, calculating the area of the pollution source of the suburb area according to the proportional coefficient obtained in the step 5 and the suburb built-up area of the suburb area (for example, if the proportional coefficient is one tenth, and the suburb built-up area of the suburb area is 500 square meters, the multiplied value of 50 square meters is the area of the suburb pollutant).
And 7, after the pollution source area of the suburb area and the pollution source area of the urban area are obtained, calculating and obtaining the emission amount (such as construction dust emission amount) of the urban pollution source according to the total pollution source area of the area to be detected.
In the method, a high-resolution remote sensing image obtained by shooting a specific area in a region to be detected and a low-resolution remote sensing image obtained by shooting a whole area in the region to be detected are obtained, wherein the region to be detected consists of the specific area and a non-specific area; analyzing the low-resolution remote sensing image to obtain a total built-up area corresponding to the area to be detected, wherein the total built-up area comprises a built-up area of a specific area and a built-up area of a non-specific area; analyzing the high-resolution remote sensing image to obtain a specific pollution source area corresponding to a specific area, wherein the total built-up area comprises a specific built-up area corresponding to the specific area and a non-specific built-up area corresponding to the non-specific area; and determining the pollutant discharge amount corresponding to the area to be detected based on the area of the specific built-up area, the area of the non-specific built-up area and the area of the specific pollution source.
The method is based on a high-resolution (0.5 m) remote sensing image and medium-low resolution (30 m) remote sensing image interpretation method, the construction site area of a non-specific area is constantly calculated by utilizing the construction site area/specific area built-up area coefficient of a specific area, so that the area of the whole-area construction site is obtained, the construction raise dust emission is calculated and obtained, and the method for scientifically, reasonably, accurately reflecting the pollution condition of the construction raise dust source and quickly and inexpensively establishing the construction raise dust source emission list is provided. Therefore, the problems that in the related technology, in the construction raise dust emission list establishing process, uncertainty of activity level number is increased due to the fact that construction area is subjected to on-site investigation or statistical data investigation, meanwhile, the defects of long time consumption, low efficiency, high investigation cost and the like are overcome, and cost is increased due to the fact that high-resolution remote sensing image interpretation is adopted completely are solved.
Optionally, in another embodiment based on the foregoing method of the present application, after the obtaining the high-resolution remote sensing image and the low-resolution remote sensing image obtained by shooting the region to be detected, the method further includes:
utilizing ENVI software to carry out image preprocessing on the high-resolution remote sensing image and the low-resolution remote sensing image, wherein the image preprocessing comprises radiometric calibration, atmospheric correction and cutting processing;
and the image preprocessing is used for eliminating atmospheric parameters and illumination parameters in the high-resolution remote sensing images and the low-resolution remote sensing images.
Optionally, in another embodiment based on the foregoing method of the present application, the analyzing the high-resolution remote sensing image to obtain a specific pollution source area corresponding to the specific area includes:
analyzing the high-resolution remote sensing image based on a visual interpretation method to obtain a pollution target object existing in the specific area;
and taking the area within a preset range from the pollution target object as the specific pollution source area.
Optionally, in another embodiment based on the foregoing method of the present application, the analyzing the low-resolution remote sensing image to obtain an overall built-up area corresponding to the region to be detected includes:
classifying the land types of the to-be-detected region contained in the low-resolution remote sensing image based on a maximum likelihood classification method, determining the specific built-up region area corresponding to the specific region based on a classification result, and determining the non-specific built-up region area corresponding to the non-specific region;
and obtaining a proportionality coefficient for representing the ratio of the pollution source to the specific built-up area in the specific area based on the specific pollution source area and the specific built-up area.
Optionally, in another embodiment based on the method described above, the determining the pollutant discharge amount corresponding to the area to be detected based on the total built-up area and the specific pollutant source area includes:
acquiring a preset proportionality coefficient, wherein the proportionality coefficient is used for representing the ratio of a pollution source to the area of a specific built-up area in the specific area;
determining an area of a non-specific pollution source in the non-specific region based on the scaling factor and the area of the non-specific build-up region;
and determining the pollutant discharge amount corresponding to the area to be detected based on the area of the specific pollution source and the area of the non-specific pollution source.
Optionally, in another embodiment based on the method of the present application, the determining, based on the specific pollution source area and the non-specific pollution source area, an amount of pollutant emission corresponding to the area to be detected includes:
calculating the sum of the area of the specific pollution source and the area of the non-specific pollution source to obtain the total area of the pollution source corresponding to the area to be detected;
and determining the pollutant discharge amount corresponding to the area to be detected based on the total pollution source area and a discharge factor, wherein the discharge factor is used for representing the correlation relationship between the pollution source area and the pollutant discharge amount. .
Optionally, in another embodiment based on the above method of the present application, the pollutant discharge amount corresponding to the area to be detected is calculated based on the following formula:
W ci ＝E ci ×A c ×T；
wherein the WCi represents the pollutant emissions, the ECi represents the emission factor, the AC represents the pollution source area, and the T represents the pollution active period of the pollutant.
Optionally, in another embodiment based on the above method of the present application, the specific area is an urban area in the area to be detected; and the non-specific area is a suburban area in the area to be detected.
As another example, taking the to-be-detected area as a city a, the specific area as an urban area of the city a, the non-specific area as a suburban area of the city a, and the pollution source as an active construction site as an example, the steps of the method for determining the pollutant emission amount provided by the present application are specifically described, where specifically as shown in fig. 2:
the first step is as follows: acquiring a high-resolution remote sensing image obtained by shooting aiming at an urban area of a city A, and acquiring a low-resolution remote sensing image obtained by shooting aiming at a general area (including the urban area and a suburban area) of the city A;
the second step is that: and respectively carrying out radiometric calibration on the two remote sensing images by utilizing ENVI software to carry out pretreatments such as radiometric calibration, atmospheric correction, cutting and the like. Therefore, the purpose of eliminating the influence of factors such as atmosphere and illumination on the image reflected by the ground object is achieved. The purpose that the ground surface land utilization types can be distinguished more easily through color display of the two remote sensing images is achieved.
The third step: and identifying the land utilization type of the low-resolution remote sensing image by utilizing ENVI software and adopting a maximum likelihood classification method, and further acquiring the specific built-up area of the urban area of the city A and the non-specific built-up area corresponding to the suburban area.
Specifically, in the process of identifying the land utilization type of the low-resolution remote sensing image by using the maximum class likelihood classification method, a sample of the construction land is extracted firstly, and then a supervision classification identification algorithm is performed according to the sample to identify the inactive construction area of the suburban area of the city A.
In one mode, in this embodiment of the present application, the recognition results of the inactive building areas of the suburban areas of the multiple recognized cities a may be scored, and the recognition result with the highest score may be selected as the final built-up area of the suburban area of the city a. Specifically, as shown in fig. 3, a schematic diagram of the built-up area of the suburban area of the city a is obtained by the low-resolution remote sensing image recognition.
The fourth step: and identifying the active building site area of the urban area of the city A in the high-resolution remote sensing image by utilizing the ENVI software and adopting a manual visual interpretation method.
In one approach, embodiments of the present application may determine the active building site area of the urban area of city a by identifying the number and location of scaffolding (i.e., contamination targets) present in the high resolution remote sensing image. Alternatively, the active building site area of the urban area may be determined by identifying the number and location of sheds (i.e., the fouling targets). This is not a limitation of the present application. Specifically, as shown in fig. 4, a schematic diagram of an active building area of an urban area of a city a is obtained by recognition from a high-resolution remote sensing image.
The fifth step: since the resolution of the low-resolution remote sensing image can only obtain the area of the inactive construction site and cannot support the identification of the active construction site, after the inactive construction area of the suburban area is obtained, the proportional coefficient obtained according to the following formula is required to be calculated.
First, the scaling factor S can be obtained by the following equation:
further, after the proportionality coefficient is obtained, the movable building area of the suburban area can be obtained according to the following formula:
in conclusion, the movable building area of the suburban area of the city A can be obtained.
And a sixth step: after the pollution source area of the suburb area and the pollution source area of the urban area are obtained, the emission amount of the pollution source of the city can be calculated and obtained according to the total pollution source area of the area to be detected and the preset emission factor.
Further, the pollutant discharge amount refers to dust generated in the construction process of construction sites such as city municipal infrastructure building construction, equipment installation engineering and decoration and repair engineering. Based on this, in the embodiment of the application, the two remote sensing image interpretation results can be subjected to nested calculation by using a preset construction dust calculation formula through Arc GIS software, so that the total pollutant emission of the urban area of the city a and the suburban area can be obtained. That is, the construction site construction raise dust emission amount of city A, and a construction raise dust emission list is established.
In one mode, the pollutant emission amount corresponding to the whole area to be detected can be calculated based on the following construction raise dust calculation formula:
W ci ＝E ci ×A c ×T；
wherein WCi represents pollutant emission, ECi represents emission factor, AC represents pollutant source area, and T represents pollution active period of pollutant.
By applying the technical scheme of the application, the urban area polluted area and the non-urban area polluted area of the area to be detected can be determined by analyzing the remote sensing image of the area to be detected. And automatically obtaining the pollutant discharge amount matched with the total pollution area by using a preset discharge factor. Therefore, the method for combining the high-resolution remote sensing image with the medium-low resolution remote sensing image interpretation is realized to achieve the purposes of easy acquisition of emission and accurate data. And further, the defect that the time consumption is long when the pollutant discharge amount of a certain area is obtained only by a manual on-site investigation statistical method in the related technology is overcome.
Alternatively, in another embodiment of the present application, as shown in fig. 5, the present application further provides a device for determining the amount of pollutant emission. Which comprises the following steps:
the device comprises an acquisition module and a detection module, wherein the acquisition module is configured to acquire a high-resolution remote sensing image obtained by shooting a specific area in an area to be detected and acquire a low-resolution remote sensing image obtained by shooting a whole area in the area to be detected, and the area to be detected consists of the specific area and a non-specific area;
the calculation module is configured to analyze the low-resolution remote sensing image to obtain a total built-up area corresponding to the area to be detected, wherein the total built-up area comprises a built-up area of a specific area and a built-up area of a non-specific area; analyzing the high-resolution remote sensing image to obtain a specific pollution source area corresponding to the specific area, wherein the total built-up area comprises a specific built-up area corresponding to the specific area and a non-specific built-up area corresponding to the non-specific area;
and the determining module is configured to determine the pollutant discharge amount corresponding to the area to be detected based on the specific pollution source area corresponding to the specific built-up area and the non-specific pollution source area corresponding to the non-specific built-up area.
By applying the technical scheme of the application, the urban polluted area and the non-urban polluted area of the area can be determined by analyzing the remote sensing image of the area to be detected. And automatically obtaining the pollutant discharge amount matched with the total pollution area by using a preset discharge factor. Therefore, the method for combining the high-resolution remote sensing image with the medium-low resolution remote sensing image interpretation is realized to achieve the purposes of easy acquisition of emission and accurate data. And further, the defect that the time consumption is long when the pollutant discharge amount of a certain area is obtained only by a manual on-site investigation statistical method in the related technology is overcome.
In another embodiment of the present application, the obtaining module 201 is configured to perform the steps including:
utilizing ENVI software to carry out image preprocessing on the high-resolution remote sensing image and the low-resolution remote sensing image, wherein the image preprocessing comprises radiometric calibration, atmospheric correction and cutting processing;
and the image preprocessing is used for eliminating atmospheric parameters and illumination parameters in the high-resolution remote sensing images and the low-resolution remote sensing images.
In another embodiment of the present application, the obtaining module 201 is configured to perform the steps including:
analyzing the high-resolution remote sensing image based on a visual interpretation method to obtain a pollution target object existing in the specific area;
taking an area within a preset range from the pollution target object as the area of the specific pollution source;
in another embodiment of the present application, the obtaining module 201 is configured to perform the steps including:
classifying the land types of the to-be-detected region contained in the low-resolution remote sensing image based on a maximum likelihood classification method, determining the specific built-up region area corresponding to the specific region based on a classification result, and determining the non-specific built-up region area corresponding to the non-specific region;
and obtaining a proportionality coefficient for representing the ratio of the pollution source to the specific built-up area in the specific area based on the specific pollution source area and the specific built-up area.
In another embodiment of the present application, the obtaining module 201 is configured to perform the steps including:
acquiring a preset proportionality coefficient, wherein the proportionality coefficient is used for representing the ratio of a pollution source to the area of a specific built-up area in the specific area;
determining a non-specific area of a contamination source in the non-specific region based on the scaling factor and the non-specific build-up region area;
and determining the pollutant discharge amount corresponding to the area to be detected based on the specific pollution source area and the non-specific pollution source area.
In another embodiment of the present application, the obtaining module 201 is configured to perform the steps including:
calculating the sum of the area of the specific pollution source and the area of the non-specific pollution source to obtain the total area of the pollution source corresponding to the area to be detected;
and determining the pollutant discharge amount corresponding to the area to be detected based on the total pollution source area and a discharge factor, wherein the discharge factor is used for representing the incidence relation between the pollution source area and the pollutant discharge amount.
In another embodiment of the present application, the obtaining module 201 is configured to perform the steps including:
W ci ＝E ci ×A c ×T；
wherein the WCi represents the pollutant emissions, the ECi represents the emission factor, the AC represents the pollution source area, and the T represents the pollution active period of the pollutant.
In another embodiment of the present application, the obtaining module 201 is configured to perform the steps including:
the specific area is an urban area in the area to be detected; and the non-specific area is a suburban area in the area to be detected.
FIG. 6 is a block diagram illustrating a logical structure of an electronic device in accordance with an exemplary embodiment. For example, the electronic device 300 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
In an exemplary embodiment, there is also provided a non-transitory computer readable storage medium, such as a memory, including instructions executable by an electronic device processor to perform a method of determining an amount of pollutant emissions as described above, the method comprising: acquiring a high-resolution remote sensing image obtained by shooting a specific area in an area to be detected and acquiring a low-resolution remote sensing image obtained by shooting a whole area in the area to be detected, wherein the area to be detected consists of the specific area and a non-specific area; analyzing the low-resolution remote sensing image to obtain the total built-up area corresponding to the area to be detected; analyzing the high-resolution remote sensing image to obtain a specific pollution source area corresponding to the specific area, wherein the total built-up area comprises a specific built-up area corresponding to the specific area and a non-specific built-up area corresponding to the non-specific area; and determining the pollutant discharge amount corresponding to the area to be detected based on the specific pollution source area corresponding to the specific built-up area and the non-specific pollution source area corresponding to the non-specific built-up area. Optionally, the instructions may also be executable by a processor of an electronic device to perform other steps involved in the exemplary embodiments described above. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
In an exemplary embodiment, there is also provided an application/computer program product including one or more instructions executable by a processor of an electronic device to perform the method of determining pollutant emissions described above, the method comprising: acquiring a high-resolution remote sensing image obtained by shooting a specific area in an area to be detected and acquiring a low-resolution remote sensing image obtained by shooting a whole area in the area to be detected, wherein the area to be detected consists of the specific area and a non-specific area; analyzing the low-resolution remote sensing image to obtain the total built-up area corresponding to the area to be detected; analyzing the high-resolution remote sensing image to obtain a specific pollution source area corresponding to the specific area, wherein the total built-up area comprises a specific built-up area corresponding to the specific area and a non-specific built-up area corresponding to the non-specific area; and determining the pollutant discharge amount corresponding to the area to be detected based on the specific pollution source area corresponding to the specific built-up area and the non-specific pollution source area corresponding to the non-specific built-up area. Optionally, the instructions may also be executable by a processor of the electronic device to perform other steps involved in the exemplary embodiments described above.
Fig. 6 is an exemplary diagram of an electronic device 300. Those skilled in the art will appreciate that the schematic diagram 6 is merely an example of the electronic device 300 and does not constitute a limitation of the electronic device 300 and may include more or less components than those shown, or combine certain components, or different components, e.g., the electronic device 300 may also include input-output devices, network access devices, buses, etc.
The Processor 302 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor 302 may be any conventional processor or the like, and the processor 302 is the control center of the electronic device 300 and connects the various parts of the entire electronic device 300 using various interfaces and lines.
The modules integrated by the electronic device 300 may be stored in a computer-readable storage medium if they are implemented in the form of software functional modules and sold or used as independent products. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by hardware related to computer readable instructions, which may be stored in a computer readable storage medium, and when the computer readable instructions are executed by a processor, the steps of the method embodiments may be implemented.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A method for determining an amount of a pollutant emission, comprising:
acquiring a high-resolution remote sensing image obtained by shooting a specific area in an area to be detected, and acquiring a low-resolution remote sensing image obtained by shooting a whole area in the area to be detected, wherein the area to be detected consists of the specific area and a non-specific area;
analyzing the low-resolution remote sensing image to obtain the total built-up area corresponding to the area to be detected; analyzing the high-resolution remote sensing image to obtain a specific pollution source area corresponding to the specific area, wherein the total built-up area comprises a specific built-up area corresponding to the specific area and a non-specific built-up area corresponding to the non-specific area;
determining the pollutant discharge amount corresponding to the area to be detected based on the specific pollution source area corresponding to the specific built-up area and the non-specific pollution source area corresponding to the non-specific built-up area;
analyzing the high-resolution remote sensing image to obtain the specific pollution source area corresponding to the specific area, wherein the analyzing comprises the following steps:
analyzing the high-resolution remote sensing image based on a visual interpretation method to obtain a pollution target object existing in the specific area;
taking an area within a preset range from the pollution target object as the area of the specific pollution source;
wherein obtaining the area of the non-specific pollution source comprises:
acquiring a preset proportionality coefficient, wherein the proportionality coefficient is used for representing the ratio of a pollution source to the area of a specific built-up area in the specific area;
determining an area of a non-specific contamination source in the non-specific region based on the scaling factor and the non-specific build-up region area.
2. The method according to claim 1, wherein after the obtaining of the high-resolution remote sensing image and the low-resolution remote sensing image obtained by shooting the region to be detected, the method further comprises:
utilizing ENVI software to carry out image preprocessing on the high-resolution remote sensing image and the low-resolution remote sensing image, wherein the image preprocessing comprises radiometric calibration, atmospheric correction and cutting processing;
and the image preprocessing is used for eliminating atmospheric parameters and illumination parameters in the high-resolution remote sensing images and the low-resolution remote sensing images.
3. The method of claim 1, wherein the analyzing the low-resolution remote sensing image to obtain an overall built-up area corresponding to the area to be detected comprises:
classifying the land types of the to-be-detected region contained in the low-resolution remote sensing image based on a maximum likelihood classification method, determining the specific built-up region area corresponding to the specific region based on a classification result, and determining the non-specific built-up region area corresponding to the non-specific region;
and obtaining a proportionality coefficient for representing the ratio of the pollution source to the specific built-up area in the specific area based on the specific pollution source area and the specific built-up area.
4. The method according to claim 3, wherein the determining the pollutant discharge amount corresponding to the area to be detected based on the total built-up area and the specific pollutant source area comprises:
acquiring a preset proportionality coefficient, wherein the proportionality coefficient is used for representing the ratio of a pollution source to the area of a specific built-up area in the specific area;
determining a non-specific area of a contamination source in the non-specific region based on the scaling factor and the non-specific build-up region area;
and determining the pollutant discharge amount corresponding to the area to be detected based on the specific pollution source area and the non-specific pollution source area.
5. The method of claim 1, wherein the determining the pollutant discharge amount corresponding to the area to be detected based on the specific pollutant source area and the non-specific pollutant source area comprises:
calculating the sum of the area of the specific pollution source and the area of the non-specific pollution source to obtain the total area of the pollution source corresponding to the area to be detected;
and determining the pollutant discharge amount corresponding to the area to be detected based on the total pollution source area and a discharge factor, wherein the discharge factor is used for representing the incidence relation between the pollution source area and the pollutant discharge amount.
6. The method of claim 5, wherein the pollutant emission corresponding to the area to be detected is calculated based on the following formula:
W ci ＝E ci ×A c ×T；
wherein, the W ci Represents the amount of the pollutant emission, the E ci Represents said emission factor, said A c Representing the area of the source of contamination and the T representing the period of contamination activity for the contaminant.
7. The method according to claim 1, wherein the specific area is an urban area in the area to be detected; and the non-specific area is a suburban area in the area to be detected.
8. An apparatus for determining an amount of a pollutant discharged, comprising:
the device comprises an acquisition module and a detection module, wherein the acquisition module is configured to acquire a high-resolution remote sensing image obtained by shooting a specific area in an area to be detected and acquire a low-resolution remote sensing image obtained by shooting a whole area in the area to be detected, and the area to be detected consists of the specific area and a non-specific area;
the calculation module is configured to analyze the low-resolution remote sensing image to obtain an overall built-up area corresponding to the area to be detected; analyzing the high-resolution remote sensing image to obtain a specific pollution source area corresponding to the specific area, wherein the total built-up area comprises a specific built-up area corresponding to the specific area and a non-specific built-up area corresponding to the non-specific area;
the determining module is configured to determine the pollutant discharge amount corresponding to the area to be detected based on a specific pollution source area corresponding to the specific built-up area and a non-specific pollution source area corresponding to the non-specific built-up area;
analyzing the high-resolution remote sensing image to obtain the specific pollution source area corresponding to the specific area, wherein the analyzing comprises the following steps:
analyzing the high-resolution remote sensing image based on a visual interpretation method to obtain a pollution target object existing in the specific area;
taking an area within a preset range from the pollution target object as the area of the specific pollution source;
wherein obtaining the area of the non-specific pollution source comprises:
acquiring a preset proportionality coefficient, wherein the proportionality coefficient is used for representing the ratio of a pollution source to the area of a specific built-up area in the specific area;
determining an area of a non-specific contamination source in the non-specific region based on the scaling factor and the non-specific build-up region area.
9. An electronic device, comprising:
a memory for storing executable instructions; and (c) a second step of,
a processor for executing the executable instructions with the memory to perform the operations of the method for determining an amount of pollutant emissions according to any of claims 1-7.
10. A computer-readable storage medium storing computer-readable instructions that, when executed, perform the operations of the method for determining an amount of pollutant emissions according to any of claims 1-7.
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