Atmospheric pollutant tracing method and device and electronic equipment

Abstract

The invention provides an atmospheric pollutant tracing method and device and electronic equipment, and the method comprises the steps: constructing an emission source atmospheric pollutant composition library which comprises the corresponding relation between different emission sources and different atmospheric pollutant labels; acquiring a plurality of groups of atmospheric pollutant concentrations of a to-be-treated discharge site along different light paths, and acquiring the wind direction of the to-be-treated discharge site; and determining an emission source of the atmospheric pollutants based on the atmospheric pollutant concentration, the wind direction and the emission source atmospheric pollutant composition library. According to the invention, the air pollutants can be traced quickly and accurately.

Description

Technical Field

[0001] The present invention relates to the technical field of pollutant tracing, and particularly relates to a method, a device and an electronic device for tracing atmospheric pollutants. Background Art

[0002] Chemical industrial parks and large petrochemical enterprises involve emissions of atmospheric pollutants such as VOCs, etc., which are likely to cause environmental pollution.

[0003] Currently, for the atmospheric pollutants generated during the production process of enterprises, such as VOCs, they are mainly unorganized emissions. Unorganized emissions of atmospheric pollutants, due to the characteristics of numerous points, wide area, dispersion, irregularity, large fluctuations with time, space and production conditions, and the plume being amorphous, non-steady-state, and having variable migration and diffusion paths, generally present complex pollution characteristics formed by the combination of large area sources or volume sources and changing meteorological conditions, making it very difficult to trace their sources.

[0004] Therefore, currently, finding a method that can quickly and accurately trace atmospheric pollutants has become a research hotspot. Summary of the Invention

[0005] The present invention provides a method, a device and an electronic device for tracing atmospheric pollutants, which can quickly and accurately trace atmospheric pollutants.

[0006] The present invention provides a method for tracing atmospheric pollutants, the method comprising: constructing an atmospheric pollutant composition library of emission sources, wherein the atmospheric pollutant composition library of emission sources includes the corresponding relationships between different emission sources and different atmospheric pollutant labels; obtaining multiple groups of atmospheric pollutant concentrations along different optical paths of the to-be-processed emission site, and obtaining the wind direction of the to-be-processed emission site; and determining the emission sources of the atmospheric pollutants based on the atmospheric pollutant concentrations, the wind direction, and the atmospheric pollutant composition library of emission sources.

[0007] According to an atmospheric pollutant tracing method provided by the present invention, determining the emission source of the atmospheric pollutant based on the atmospheric pollutant concentration, the wind direction, and the emission source atmospheric pollutant composition library specifically includes: presetting the concentration alarm threshold for each atmospheric pollutant; when the atmospheric pollutant concentration in each optical path exceeds the concentration alarm threshold, controlling to form an alarm signal for the optical path; forming an alarm order for the optical path based on the occurrence time of the alarm signal; based on the alarm order, the wind direction, and the positions of each emission source, eliminating interfering emission sources to obtain candidate emission sources, where the interfering emission sources at least include the upwind emission sources of the upwind unalarmed optical paths, and the upwind unalarmed optical paths are the unalarmed optical paths located upwind of the optical path with the first alarm order; determining the emission source of the atmospheric pollutant from the candidate emission sources based on the emission source atmospheric pollutant composition library.

[0008] According to an atmospheric pollutant tracing method provided by the present invention, determining the emission source of the atmospheric pollutant from the candidate emission sources based on the emission source atmospheric pollutant composition library specifically includes: determining a target atmospheric pollutant label corresponding to the atmospheric pollutant concentration in the emission source atmospheric pollutant composition library based on the atmospheric pollutant concentration; determining a target emission source corresponding to the target atmospheric pollutant label based on the target atmospheric pollutant label and the correspondence between different emission sources and different atmospheric pollutant labels, and taking the target emission source as the emission source of the atmospheric pollutant.

[0009] According to an atmospheric pollutant tracing method provided by the present invention, the atmospheric pollutant label includes a characteristic factor label, and the emission source atmospheric pollutant composition library is constructed in the following manner: obtaining the historical atmospheric pollutants existing in different emission sources and the corresponding historical pollutant concentrations; when any one of the historical atmospheric pollutants belongs only to any one emission source, taking the any one historical atmospheric pollutant as the characteristic factor label of the any one emission source; constructing the emission source atmospheric pollutant composition library based on the any one historical atmospheric pollutant and the corresponding characteristic factor label.

[0010] An atmospheric pollutant tracing method provided by the present invention, the atmospheric pollutant label includes a concentration ratio label. After obtaining historical atmospheric pollutants existing in different emission sources and historical pollutant concentrations corresponding to the historical atmospheric pollutants, the method further includes: in the case that no historical atmospheric pollutant belongs only to any one emission source, obtaining the historical atmospheric pollutant concentrations in each of the emission sources, and performing a quotient operation on any two of the historical atmospheric pollutant concentrations to obtain multiple sets of pollutant concentration ratios; using the pollutant concentration ratios with target characteristics as the concentration ratio labels corresponding to the respective emission sources; and constructing an emission source atmospheric pollutant composition library based on different emission sources and the concentration ratio labels corresponding to the emission sources.

[0011] An atmospheric pollutant tracing method provided by the present invention, for determining a target atmospheric pollutant label corresponding to the atmospheric pollutant concentration in the emission source atmospheric pollutant composition library based on the atmospheric pollutant concentration, specifically includes: obtaining an atmospheric pollutant corresponding to the atmospheric pollutant concentration based on the atmospheric pollutant concentration; and in the case that the atmospheric pollutant matches a characteristic factor label in the emission source atmospheric pollutant composition library, using the characteristic factor label as the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration.

[0012] An atmospheric pollutant tracing method provided by the present invention, for determining a target atmospheric pollutant label corresponding to the atmospheric pollutant concentration in the emission source atmospheric pollutant composition library based on the atmospheric pollutant concentration, specifically includes: in the case that the atmospheric pollutant concentration matches a concentration ratio label in the emission source atmospheric pollutant composition library, using the concentration ratio label as the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration.

[0013] An atmospheric pollutant tracing method provided by the present invention, the emission source atmospheric pollutant composition library further includes the corresponding relationship between different emission sources and different combinations of atmospheric pollutants, wherein the combination of atmospheric pollutants includes different atmospheric pollutants. The method further includes: in the case that a target atmospheric pollutant label corresponding to the atmospheric pollutant concentration cannot be determined in the emission source atmospheric pollutant composition library, performing principal component analysis on the atmospheric pollutant concentration monitored on the optical path with the first alarm order to obtain a principal component pollutant combination composed of different principal component pollutants on the optical path with the first alarm order; based on the principal component pollutant combination, combining the corresponding relationship between different emission sources and different combinations of atmospheric pollutants included in the emission source atmospheric pollutant composition library, determining the emission source corresponding to the principal component pollutant combination; and using the emission source corresponding to the principal component pollutant combination as the emission source of the atmospheric pollutant.

[0014] The present invention also provides an apparatus for tracing the source of air pollutants, the apparatus comprising: a construction module for constructing a library of the compositions of air pollutants from emission sources, wherein the library of the compositions of air pollutants from emission sources includes the correspondence between different emission sources and different air pollutant labels; an acquisition module for acquiring multiple groups of air pollutant concentrations along different optical paths of a to-be-processed emission site, and for acquiring the wind direction of the to-be-processed emission site; and a processing module for determining the emission source of the air pollutants based on the air pollutant concentrations, the wind direction, and the library of the compositions of air pollutants from emission sources.

[0015] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein when the processor executes the program, the method for tracing the source of air pollutants as described in any one of the above is implemented.

[0016] The present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the method for tracing the source of air pollutants as described in any one of the above is implemented.

[0017] The present invention also provides a computer program product, comprising a computer program, and when the computer program is executed by a processor, the method for tracing the source of air pollutants as described in any one of the above is implemented.

[0018] The method, apparatus, and electronic device for tracing the source of air pollutants provided by the present invention construct a library of the compositions of air pollutants from emission sources, wherein the library of the compositions of air pollutants from emission sources includes the correspondence between different emission sources and different air pollutant labels; acquire multiple groups of air pollutant concentrations along different optical paths of a to-be-processed emission site, and acquire the wind direction of the to-be-processed emission site; and determine the emission source of the air pollutants based on the air pollutant concentrations, the wind direction, and the library of the compositions of air pollutants from emission sources. Thus, rapid and accurate tracing of air pollutants can be achieved. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0020] Figure 1 is a schematic flowchart of the method for tracing the source of air pollutants provided by the present invention;

[0021] Figure 2 is a schematic diagram of the optical path formed by the peripheral open variable optical path spectrometer provided by the present invention;

[0022] Figure 3 It is a schematic flow chart for determining the emission sources of atmospheric pollutants based on the atmospheric pollutant concentration, wind direction, and the atmospheric pollutant composition library of emission sources provided by the present invention;

[0023] Figure 4 It is a schematic diagram of the application scenario of the atmospheric pollutant tracing method provided by the present invention;

[0024] Figure 5 It is a schematic structural diagram of the atmospheric pollutant tracing device provided by the present invention;

[0025] Figure 6 It is a schematic structural diagram of the electronic device provided by the present invention. Specific embodiments

[0026] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Figure 1 It is a schematic flow chart of the atmospheric pollutant tracing method provided by the present invention.

[0028] The following will be combined with Figure 1 to illustrate the process of the atmospheric pollutant tracing method provided by the present invention.

[0029] In an exemplary embodiment of the present invention, in combination with Figure 1 it can be seen that the atmospheric pollutant tracing method may include steps 110 to 130, and each step will be introduced separately below.

[0030] In step 110, an atmospheric pollutant composition library of emission sources is constructed, where the atmospheric pollutant composition library of emission sources includes the corresponding relationships between different emission sources and different atmospheric pollutant labels.

[0031] In an exemplary embodiment of the present invention, the atmospheric pollutant labels may include characteristic factor labels, and the construction of the atmospheric pollutant composition library of emission sources may be implemented in the following manner:

[0032] Obtain the historical atmospheric pollutants existing in different emission sources and the corresponding historical pollutant concentrations of the historical atmospheric pollutants;

[0033] In the case where any one of the historical atmospheric pollutants belongs only to any one of the emission sources, use any one of the historical atmospheric pollutants as the characteristic factor label of any one of the emission sources;

[0034] Construct an emission source air pollutant composition library based on any historical air pollutant and the characteristic factor label corresponding to any historical air pollutant.

[0035] In one embodiment, the pollutant components and concentrations emitted by each emission source can be statistically analyzed according to the historical air pollutants of different emission sources and the historical pollutant concentrations corresponding to the historical air pollutants, and an emission source pollutant composition database can be constructed.

[0036] In another embodiment, if there is a certain VOCs factor that only exists in a certain emission source, the VOCs factor can be called the characteristic factor label for the emission source, that is, in the case where any historical air pollutant only belongs to any emission source, any historical air pollutant is used as the characteristic factor label for any emission source.

[0037] Furthermore, an emission source air pollutant composition library can be constructed based on any historical air pollutant and the characteristic factor label corresponding to any historical air pollutant. Thus, when the pollutants in a certain optical path are matched with the characteristic factor label, the emission source can be directly traced back based on the emission source air pollutant composition library.

[0038] In another exemplary embodiment of the present invention, the air pollutant label can further include a concentration ratio label. Continuing with the example of the embodiment described above, after obtaining the historical air pollutants existing in different emission sources and the historical pollutant concentrations corresponding to the historical air pollutants, the air pollutant tracing method can further include the following steps:

[0039] In the case where there is no historical air pollutant that only belongs to any emission source, obtain the historical air pollutant concentrations in each emission source, and perform a quotient operation on any two historical air pollutant concentrations to obtain multiple groups of pollutant concentration ratios;

[0040] Take the pollutant concentration ratios with target characteristics as the concentration ratio labels for the corresponding emission sources respectively;

[0041] Construct an emission source air pollutant composition library based on different emission sources and the concentration ratio labels corresponding to the emission sources.

[0042] In one embodiment, the target feature can be adjusted according to the actual situation and is not specifically limited in this embodiment. In one example, for most emission sources that emit multiple VOC factors, they can be sorted from largest to smallest according to the concentration of each factor, c1, c2, c3... cn, and the mixing ratios c2 / c1, c3 / c1,... cn / c1, c3 / c2, c4 / c2... cn / c2... cn / cn-1 are calculated, resulting in a total of n(n - 1) / 2 mixing ratios, that is, the concentrations of any two historical air pollutants are divided to obtain multiple groups of pollutant concentration ratios.

[0043] Furthermore, select 1 to 5 mixing ratios with the largest differences between different emission sources (which can correspond to the pollutant concentration ratios with target features) as the concentration ratio labels for this emission source.

[0044] In another embodiment, an emission source air pollutant composition library can be constructed based on different emission sources and the corresponding concentration ratio labels. Thus, when the pollutant concentration of a certain optical path is matched with the concentration ratio label, it can be directly traced back to the emission source based on the emission source air pollutant composition library.

[0045] In step 120, obtain multiple groups of air pollutant concentrations along different optical paths of the emission site to be processed, and obtain the wind direction of the emission site to be processed.

[0046] In one embodiment, multiple groups of air pollutant concentrations along different optical paths of the emission site to be processed can be realized by an open path spectrometer and an open variable path spectrometer. The following will illustrate the process based on the open variable path spectrometer.

[0047] In one example, the air pollutant concentration can be obtained based on an air pollutant emission monitoring, warning, and tracing system of an open variable path spectrometer. Among them, the open path monitoring, warning, and tracing system consists of at least 3 sets of open variable path spectrometers, 1 set of anemometer, and a computer control system.

[0048] During the application process, open variable path spectrometers can be deployed at the target monitoring site (corresponding to the emission site to be processed), and at least 3 sets of open variable path spectrometers are used to divide the target monitoring site into several blocks on the plane. Among them, the optical paths formed by 2 sets of open variable path spectrometers surround the target monitoring site in the middle, as Figure 2 shown. The layout of the remaining optical paths is carried out according to the distribution of potential emission sources in the target industrial site and the actual conditions of the site. Among them, the more optical paths are laid out, the more grid areas are divided, the finer the potential emission source area can be traced, and the higher the tracing efficiency.

[0049] Combined with Figure 2It can be known that the open variable optical path spectrometer can include two configuration forms: the opposed type and the reflective type. The opposed type structure can include a light source emission end, a corner reflector, and a spectrometer end. When the light source emits a light beam, the light beam passes through the 0-500-meter atmosphere to be measured, reaches the corner reflector, and after being reflected by the corner reflector, the light beam continues to pass through the second 0-500-meter atmosphere to be measured and reaches the spectrometer end.

[0050] The reflective type structure can include an integrated optical transceiver spectrometer end, a corner reflector, and a corner reflector array. After the integrated optical transceiver spectrometer emits a light beam, the light beam passes through the 0-500-meter atmosphere to be measured, reaches the corner reflector, and after being reflected by the corner reflector, the light beam continues to pass through the second 0-500-meter atmosphere to be measured and reaches the corner reflector array; after being reflected by the corner reflector array, the light beam returns along the incident optical path, and through the reflection of the corner reflector, the light beam finally returns to the integrated transceiver spectrometer.

[0051] Furthermore, the spectrometer can realize qualitative and quantitative analysis of trace pollutant gas components on the light beam through spectral diagram analysis software, so as to obtain multiple groups of atmospheric pollutant concentrations along different optical paths of the emission site to be treated.

[0052] In another example, the wind direction of the emission site to be treated can be realized according to an anemometer, where the anemometer can include a lidar anemometer, an ultrasonic anemometer, a mast anemometer, etc.

[0053] In step 130, based on the atmospheric pollutant concentration, wind direction, and the atmospheric pollutant composition library of the emission source, the emission source of the atmospheric pollutant is determined.

[0054] In another embodiment, it is possible to first judge whether the pollutant comes from a certain block according to the atmospheric pollutant concentration and wind direction, and then trace the pollutant in combination with the pollutant characteristic label of the potential emission source (corresponding to the atmospheric pollutant composition library of the emission source). Thus, it is possible to quickly and accurately trace the atmospheric pollutant.

[0055] The method for tracing the source of atmospheric pollutants provided by the present invention constructs an atmospheric pollutant composition library of the emission source, where the atmospheric pollutant composition library of the emission source includes the corresponding relationship between different emission sources and different atmospheric pollutant labels; obtains multiple groups of atmospheric pollutant concentrations along different optical paths of the emission site to be treated, and obtains the wind direction of the emission site to be treated; and based on the atmospheric pollutant concentration, wind direction, and the atmospheric pollutant composition library of the emission source, determines the emission source of the atmospheric pollutant. Thus, it is possible to quickly and accurately trace the atmospheric pollutant.

[0056] Figure 3 It is a schematic flow chart of determining the emission source of atmospheric pollutants based on the atmospheric pollutant concentration, wind direction, and the atmospheric pollutant composition library of the emission source provided by the present invention.

[0057] The following will combine with Figure 3 to illustrate the process of determining the emission sources of atmospheric pollutants based on the concentration of atmospheric pollutants, the wind direction, and the atmospheric pollutant composition library of emission sources.

[0058] In an exemplary embodiment of the present invention, combining with Figure 3 it can be known that determining the emission sources of atmospheric pollutants based on the concentration of atmospheric pollutants, the wind direction, and the atmospheric pollutant composition library of emission sources may include steps 310 to 350. The following will introduce each step separately.

[0059] In step 310, set the concentration alarm thresholds of each atmospheric pollutant in advance.

[0060] In step 320, when the concentration of atmospheric pollutants in each optical path exceeds the concentration alarm threshold, control to form an alarm signal regarding the optical path.

[0061] In step 330, based on the occurrence time of the alarm signal, form an alarm sequence regarding the optical path.

[0062] In step 340, based on the alarm sequence, the wind direction, and the positions of each emission source, eliminate the interfering emission sources to obtain candidate emission sources. Among them, the interfering emission sources at least include the upwind emission sources of the upwind unalarmed optical paths, and the upwind unalarmed optical paths are the unalarmed optical paths located upwind of the optical path with the first alarm sequence.

[0063] In step 350, based on the atmospheric pollutant composition library of emission sources, determine the emission sources of atmospheric pollutants among the candidate emission sources.

[0064] Figure 4 is a schematic diagram of the application scenario of the atmospheric pollutant tracing method provided by the present invention. For the convenience of description, the following will combine with Figure 4 the scenario shown in

[0065] It should be noted that the open-path monitoring and early warning tracing system can divide the site into Area 1 to Area 12.

[0066] In one example, the concentration alarm thresholds of each atmospheric pollutant can be set in advance, and when the concentration of atmospheric pollutants in each optical path exceeds the concentration alarm threshold, control to form an alarm signal regarding the optical path. Taking Figure 4 as an example, Figure 4 the optical paths in

[0067] can include optical path ①... optical path ⑥.

[0068] In yet another embodiment, interfering emission sources can be excluded based on the alarm order, wind direction, and the locations of the emission sources to obtain candidate emission sources. The interfering emission sources at least include the upwind emission sources of the unalarmed optical paths in the upwind direction. The unalarmed optical paths in the upwind direction are the unalarmed optical paths located in the upwind direction of the optical path with the first alarm order.

[0069] Continuing with the embodiment described above, since the wind direction is 30° east of north, and the optical path where the alarm signal is first formed is optical path ①, then the interfering emission sources can at least be Zone 3 and Zone 6. By excluding the interfering emission sources, candidate emission sources can be obtained, thereby narrowing the scope of source tracing and laying a foundation for rapid source tracing.

[0070] Furthermore, based on the emission source air pollutant composition library, the emission sources of air pollutants can be determined among the candidate emission sources. Since the interfering emission sources have been excluded, the scope of source tracing is narrowed, laying a foundation for rapid source tracing.

[0071] In yet another exemplary embodiment of the present invention, continuing with Figure 3 the embodiment described above as an example, determining the emission sources of air pollutants among the candidate emission sources based on the emission source air pollutant composition library (corresponding to step 350) can be implemented in the following manner:

[0072] Based on the air pollutant concentration, determine the target air pollutant label corresponding to the air pollutant concentration in the emission source air pollutant composition library;

[0073] Based on the target air pollutant label and the corresponding relationship between different emission sources and different air pollutant labels, determine the target emission source corresponding to the target air pollutant label, and use the target emission source as the emission source of the air pollutant.

[0074] In one embodiment, the target air pollutant label corresponding to the air pollutant concentration can be determined in the emission source air pollutant composition library according to the air pollutant concentration monitored by the optical path; furthermore, based on the target air pollutant label and the corresponding relationship between different emission sources and different air pollutant labels, the target emission source corresponding to the target air pollutant label can be determined. It should be noted that the target air pollutant label corresponds to the air pollutant concentration. Therefore, the obtained target emission source corresponding to the target air pollutant label also corresponds to the air pollutant concentration. Therefore, the target emission source can be used as the emission source of the air pollutant.

[0075] To further introduce the air pollutant source tracing method provided by the present invention, the following will describe the specific process of determining the target air pollutant label corresponding to the air pollutant concentration in the emission source air pollutant composition library in combination with the following embodiments.

[0076] In another exemplary embodiment of the present invention, based on the atmospheric pollutant concentration, a target atmospheric pollutant label corresponding to the atmospheric pollutant concentration can be determined in the emission source atmospheric pollutant composition library, which can be implemented in the following manner:

[0077] Based on the atmospheric pollutant concentration, an atmospheric pollutant corresponding to the atmospheric pollutant concentration is obtained;

[0078] When the atmospheric pollutant matches the characteristic factor label in the emission source atmospheric pollutant composition library, the characteristic factor label is used as the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration.

[0079] In one embodiment, when it is detected that the atmospheric pollutant corresponding to the atmospheric pollutant concentration matches the characteristic factor label, then the characteristic factor label can be used as the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration, and the emission source corresponding to the characteristic factor label can be directly found in the emission source atmospheric pollutant composition library as the emission source of the atmospheric pollutant.

[0080] In another exemplary embodiment of the present invention, based on the atmospheric pollutant concentration, a target atmospheric pollutant label corresponding to the atmospheric pollutant concentration can be determined in the emission source atmospheric pollutant composition library, and it can also be implemented in the following manner:

[0081] When the atmospheric pollutant concentration matches the concentration ratio label in the emission source atmospheric pollutant composition library, the concentration ratio label is used as the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration.

[0082] In one embodiment, when it is detected that the atmospheric pollutant concentration matches the concentration ratio label, then the concentration ratio label can be used as the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration, and the emission source corresponding to the concentration ratio label can be directly found in the emission source atmospheric pollutant composition library as the emission source of the atmospheric pollutant.

[0083] It should be noted that it may also be impossible to trace the source based on the concentration ratio label and the characteristic factor label. The tracing method for the foregoing situation will be described below in conjunction with the following embodiments.

[0084] In another exemplary embodiment of the present invention, the emission source atmospheric pollutant composition library may further include the corresponding relationship between different emission sources and different combinations of atmospheric pollutants, where the combination of atmospheric pollutants includes different atmospheric pollutants, and the atmospheric pollutant tracing method further includes:

[0085] In the case where the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration cannot be determined in the emission source atmospheric pollutant composition library, principal component analysis is performed on the atmospheric pollutant concentration monitored on the optical path with the first alarm order, and a principal component pollutant combination composed of different principal component pollutants on the optical path with the first alarm order is obtained;

[0086] Based on the principal component pollutant combination, in combination with the corresponding relationship between different emission sources and different atmospheric pollutant combinations included in the emission source atmospheric pollutant composition library, the emission source corresponding to the principal component pollutant combination is determined;

[0087] The emission source corresponding to the principal component pollutant combination is used as the emission source of the atmospheric pollutant.

[0088] In one embodiment, in the case where the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration cannot be determined in the emission source atmospheric pollutant composition library, that is, in the case where it is impossible to trace the source based on the concentration ratio label and the characteristic factor label, principal component analysis can be performed on the atmospheric pollutant concentration monitored on the optical path with the first alarm order, and a principal component pollutant combination composed of different principal component pollutants on the optical path with the first alarm order is obtained.

[0089] Since the emission source atmospheric pollutant composition library includes the corresponding relationship between different emission sources and different atmospheric pollutant combinations, therefore, based on the principal component pollutant combination composed of different principal component pollutants on the optical path with the first alarm order, the emission source corresponding to the principal component pollutant combination can be determined, and the emission source corresponding to the principal component pollutant combination is used as the emission source of the atmospheric pollutant.

[0090] Through the foregoing embodiments, the atmospheric pollutants in different scenarios can be traced.

[0091] According to the above description, the atmospheric pollutant tracing method provided by the present invention constructs an emission source atmospheric pollutant composition library, wherein the emission source atmospheric pollutant composition library includes the corresponding relationship between different emission sources and different atmospheric pollutant labels; obtains multiple groups of atmospheric pollutant concentrations along different optical paths of the emission site to be processed, and obtains the wind direction of the emission site to be processed; and determines the emission source of the atmospheric pollutant based on the atmospheric pollutant concentration, the wind direction, and the emission source atmospheric pollutant composition library. Thus, the atmospheric pollutant can be traced quickly and accurately.

[0092] Based on the same concept, the present invention also provides an atmospheric pollutant tracing device.

[0093] The atmospheric pollutant tracing device provided by the present invention is described below, and the atmospheric pollutant tracing device described below can be mutually referred to the atmospheric pollutant tracing method described above.

[0094] Figure 5 It is a schematic structural diagram of the air pollutant source tracing device provided by the present invention.

[0095] In an exemplary embodiment of the present invention, in combination with Figure 5 it can be known that the air pollutant source tracing device may include a construction module 510, an acquisition module 520, and a processing module 530. Each module will be introduced separately below.

[0096] The construction module 510 can be configured to construct an air pollutant composition library for emission sources, where the air pollutant composition library for emission sources includes the correspondence between different emission sources and different air pollutant labels;

[0097] The acquisition module 520 can be configured to acquire multiple groups of air pollutant concentrations along different optical paths of the emission site to be processed, and acquire the wind direction of the emission site to be processed;

[0098] The processing module 530 can be configured to determine the emission source of the air pollutant based on the air pollutant concentration, the wind direction, and the air pollutant composition library for emission sources.

[0099] In an exemplary embodiment of the present invention, the processing module 530 can implement the determination of the emission source of the air pollutant based on the air pollutant concentration, the wind direction, and the air pollutant composition library for emission sources in the following manner:

[0100] Preset the concentration alarm threshold for each air pollutant;

[0101] When the air pollutant concentration in each optical path exceeds the concentration alarm threshold, control to form an alarm signal regarding the optical path;

[0102] Based on the occurrence time of the alarm signal, form an alarm order regarding the optical path;

[0103] Based on the alarm order, the wind direction, and the positions of each emission source, eliminate the interfering emission sources to obtain candidate emission sources, where the interfering emission sources at least include the upwind emission sources of the unalarmed optical paths in the upwind direction, and the unalarmed optical paths in the upwind direction are the unalarmed optical paths located in the upwind direction of the optical path with the first alarm order;

[0104] Based on the air pollutant composition library for emission sources, determine the emission source of the air pollutant among the candidate emission sources.

[0105] In an exemplary embodiment of the present invention, the processing module 530 can implement the determination of the emission source of the air pollutant among the candidate emission sources based on the air pollutant composition library for emission sources in the following manner:

[0106] Based on the atmospheric pollutant concentration, determine the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration in the atmospheric pollutant composition library of the emission source;

[0107] Based on the target atmospheric pollutant label and the corresponding relationship between different emission sources and different atmospheric pollutant labels, determine the target emission source corresponding to the target atmospheric pollutant label, and use the target emission source as the emission source of the atmospheric pollutant.

[0108] In an exemplary embodiment of the present invention, the atmospheric pollutant label may include a characteristic factor label, and the construction module 510 may implement the construction of the atmospheric pollutant composition library of the emission source in the following manner:

[0109] Obtain the historical atmospheric pollutants existing in different emission sources and the corresponding historical pollutant concentrations of the historical atmospheric pollutants;

[0110] In the case where any one historical atmospheric pollutant belongs only to any one emission source, use any one historical atmospheric pollutant as the characteristic factor label of any one emission source;

[0111] Based on any one historical atmospheric pollutant and the corresponding characteristic factor label, construct the atmospheric pollutant composition library of the emission source.

[0112] In an exemplary embodiment of the present invention, the atmospheric pollutant label includes a concentration ratio label, and the construction module 510 may also be configured to:

[0113] In the case where there is no historical atmospheric pollutant that belongs only to any one emission source, obtain the historical atmospheric pollutant concentrations in each emission source, and perform a quotient operation on any two historical atmospheric pollutant concentrations to obtain multiple groups of pollutant concentration ratios;

[0114] Use the pollutant concentration ratios with target characteristics as the concentration ratio labels of the corresponding emission sources respectively;

[0115] Based on different emission sources and the concentration ratio labels corresponding to the emission sources, construct the atmospheric pollutant composition library of the emission source.

[0116] In an exemplary embodiment of the present invention, the processing module 530 may implement the determination of the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration in the atmospheric pollutant composition library of the emission source in the following manner:

[0117] Based on the atmospheric pollutant concentration, obtain the atmospheric pollutant corresponding to the atmospheric pollutant concentration;

[0118] In the case where the atmospheric pollutant matches the characteristic factor label in the atmospheric pollutant composition library of the emission source, use the characteristic factor label as the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration.

[0119] In an exemplary embodiment of the present invention, the processing module 530 may implement the determination of the target air pollutant label corresponding to the air pollutant concentration in the air pollutant composition library of the emission source based on the air pollutant concentration in the following manner:

[0120] When the air pollutant concentration matches the concentration ratio label in the air pollutant composition library of the emission source, the concentration ratio label is used as the target air pollutant label corresponding to the air pollutant concentration.

[0121] In an exemplary embodiment of the present invention, the air pollutant composition library of the emission source further includes the corresponding relationship between different emission sources and different combinations of air pollutants. Among them, the combination of air pollutants includes different air pollutants, and the processing module 530 may further be configured to:

[0122] Based on the main component pollutant combination, and in combination with the corresponding relationship between different emission sources and different combinations of air pollutants included in the air pollutant composition library of the emission source, determine the emission source corresponding to the main component pollutant combination;

[0123] Use the emission source corresponding to the main component pollutant combination as the emission source of the air pollutant.

[0124] Figure 6 An example of the schematic physical structure of an electronic device is shown as Figure 6 shown. The electronic device may include: a processor 610, a communication interface 620, a memory 630, and a communication bus 640. Among them, the processor 610, the communication interface 620, and the memory 630 communicate with each other through the communication bus 640. The processor 610 may call the logical instructions in the memory 630 to execute the air pollutant tracing method, which includes: constructing an air pollutant composition library of the emission source, where the air pollutant composition library of the emission source includes the corresponding relationship between different emission sources and different air pollutant labels; obtaining multiple groups of air pollutant concentrations along different optical paths of the emission site to be processed, and obtaining the wind direction of the emission site to be processed; based on the air pollutant concentration, the wind direction, and the air pollutant composition library of the emission source, determine the emission source of the air pollutant.

[0125] In addition, when the logical instructions in the above-mentioned memory 630 are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0126] On the other hand, the present invention also provides a computer program product. The computer program product includes a computer program that can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the atmospheric pollutant source tracing method provided by the above-mentioned various methods. The method includes: constructing an emission source atmospheric pollutant composition library, wherein the emission source atmospheric pollutant composition library includes the corresponding relationships between different emission sources and different atmospheric pollutant labels; obtaining multiple groups of atmospheric pollutant concentrations along different optical paths of the to-be-processed emission site, and obtaining the wind direction of the to-be-processed emission site; and determining the emission source of the atmospheric pollutant based on the atmospheric pollutant concentration, the wind direction, and the emission source atmospheric pollutant composition library.

[0127] On another aspect, the present invention also provides a non-transitory computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it realizes the execution of the atmospheric pollutant source tracing method provided by the above-mentioned various methods. The method includes: constructing an emission source atmospheric pollutant composition library, wherein the emission source atmospheric pollutant composition library includes the corresponding relationships between different emission sources and different atmospheric pollutant labels; obtaining multiple groups of atmospheric pollutant concentrations along different optical paths of the to-be-processed emission site, and obtaining the wind direction of the to-be-processed emission site; and determining the emission source of the atmospheric pollutant based on the atmospheric pollutant concentration, the wind direction, and the emission source atmospheric pollutant composition library.

[0128] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

[0129] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0130] It can be further understood that although the operations are described in a specific order in the drawings in the embodiments of the present invention, it should not be understood as requiring to execute these operations in the specific order shown or in a serial order, nor requiring to execute all the operations shown to obtain the desired result. In a specific environment, multitasking and parallel processing may be beneficial.

[0131] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some of the technical features. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An atmospheric pollutant source tracing method, characterized in that, the method includes: Constructing an atmospheric pollutant composition library for emission sources, wherein the atmospheric pollutant composition library for emission sources includes the corresponding relationships between different emission sources and different atmospheric pollutant labels; Obtaining multiple groups of atmospheric pollutant concentrations along different optical paths of the emission site to be processed, and obtaining the wind direction of the emission site to be processed; Based on the atmospheric pollutant concentrations, the wind direction, and the atmospheric pollutant composition library for emission sources, determining the emission source of the atmospheric pollutant.

2. The atmospheric pollutant source tracing method according to claim 1, characterized in that, the determining the emission source of the atmospheric pollutant based on the atmospheric pollutant concentrations, the wind direction, and the atmospheric pollutant composition library for emission sources specifically includes: Presetting a concentration alarm threshold for each of the atmospheric pollutants; When the atmospheric pollutant concentration in each of the optical paths exceeds the concentration alarm threshold, controlling to form an alarm signal regarding the optical path; Based on the occurrence time of the alarm signal, forming an alarm order regarding the optical path; Based on the alarm order, the wind direction, and the positions of each of the emission sources, eliminating interfering emission sources to obtain candidate emission sources, wherein the interfering emission sources at least include the upwind emission sources of the unalarmed optical paths in the upwind direction, and the unalarmed optical paths in the upwind direction are the unalarmed optical paths located in the upwind direction of the optical path with the first alarm order; Based on the atmospheric pollutant composition library for emission sources, determining the emission source of the atmospheric pollutant among the candidate emission sources.

3. The atmospheric pollutant source tracing method according to claim 2, characterized in that, the determining the emission source of the atmospheric pollutant among the candidate emission sources based on the atmospheric pollutant composition library for emission sources specifically includes: Based on the atmospheric pollutant concentration, determining a target atmospheric pollutant label corresponding to the atmospheric pollutant concentration in the atmospheric pollutant composition library for emission sources; Based on the target atmospheric pollutant label and the corresponding relationships between different emission sources and different atmospheric pollutant labels, determining a target emission source corresponding to the target atmospheric pollutant label, and taking the target emission source as the emission source of the atmospheric pollutant.

4. The atmospheric pollutant source tracing method according to claim 3, characterized in that, the atmospheric pollutant label includes a characteristic factor label, and the atmospheric pollutant composition library for emission sources is constructed in the following manner: Obtaining historical atmospheric pollutants existing in different emission sources and historical pollutant concentrations corresponding to the historical atmospheric pollutants; When there is any historical atmospheric pollutant that only belongs to any one emission source, taking the any historical atmospheric pollutant as the characteristic factor label of the any one emission source; Based on the any historical atmospheric pollutant and the characteristic factor label corresponding to the any historical atmospheric pollutant, constructing the atmospheric pollutant composition library for emission sources.

5. The atmospheric pollutant source tracing method according to claim 4, characterized in that, The atmospheric pollutant label includes a concentration ratio label. After obtaining the historical atmospheric pollutants present in different emission sources and the historical pollutant concentrations corresponding to the historical atmospheric pollutants, the method further includes: In the case where there is no historical atmospheric pollutant that belongs only to any one emission source, obtaining the historical atmospheric pollutant concentrations in each of the emission sources, and performing a quotient operation on any two of the historical atmospheric pollutant concentrations to obtain multiple sets of pollutant concentration ratios; Taking the pollutant concentration ratios with target characteristics as the concentration ratio labels corresponding to the respective emission sources; Based on different emission sources and the concentration ratio labels corresponding to the emission sources, constructing an emission source atmospheric pollutant composition library.

6. The atmospheric pollutant tracing method according to claim 4, wherein, The determining of the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration in the emission source atmospheric pollutant composition library based on the atmospheric pollutant concentration specifically includes: Based on the atmospheric pollutant concentration, obtaining the atmospheric pollutant corresponding to the atmospheric pollutant concentration; In the case where the atmospheric pollutant matches the characteristic factor label in the emission source atmospheric pollutant composition library, taking the characteristic factor label as the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration.

7. The atmospheric pollutant tracing method according to claim 5, wherein, The determining of the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration in the emission source atmospheric pollutant composition library based on the atmospheric pollutant concentration specifically includes: In the case where the atmospheric pollutant concentration matches the concentration ratio label in the emission source atmospheric pollutant composition library, taking the concentration ratio label as the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration.

8. The atmospheric pollutant tracing method according to claim 2, wherein, The emission source atmospheric pollutant composition library further includes the corresponding relationship between different emission sources and different combinations of atmospheric pollutants. Among them, the combination of atmospheric pollutants includes different atmospheric pollutants, and the method further includes: In the case where the target atmospheric pollutant label corresponding to the atmospheric pollutant concentration cannot be determined in the emission source atmospheric pollutant composition library, performing principal component analysis on the atmospheric pollutant concentration monitored on the optical path with the first alarm order to obtain a principal component pollutant combination composed of different principal component pollutants on the optical path with the first alarm order; Based on the principal component pollutant combination, combining the corresponding relationship between different emission sources and different combinations of atmospheric pollutants included in the emission source atmospheric pollutant composition library, determining the emission source corresponding to the principal component pollutant combination; Taking the emission source corresponding to the principal component pollutant combination as the emission source of the atmospheric pollutant.

9. An atmospheric pollutant tracing device, wherein, The device includes: A construction module for constructing an emission source atmospheric pollutant composition library, wherein the emission source atmospheric pollutant composition library includes the corresponding relationship between different emission sources and different atmospheric pollutant labels; An acquisition module, configured to acquire multiple groups of atmospheric pollutant concentrations along different optical paths of a to-be-treated emission site, and acquire the wind direction of the to-be-treated emission site; A processing module, configured to determine the emission sources of the atmospheric pollutants based on the atmospheric pollutant concentrations, the wind direction, and the emission source atmospheric pollutant composition library; 10. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein, when the processor executes the program, the atmospheric pollutant tracing method according to any one of claims 1 to 8 is implemented.

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