CN112986086A - Primary emission monitoring method and device for fine particles, storage medium and equipment - Google Patents
Primary emission monitoring method and device for fine particles, storage medium and equipment Download PDFInfo
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- CN112986086A CN112986086A CN202110408281.4A CN202110408281A CN112986086A CN 112986086 A CN112986086 A CN 112986086A CN 202110408281 A CN202110408281 A CN 202110408281A CN 112986086 A CN112986086 A CN 112986086A
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- 239000010419 fine particle Substances 0.000 title claims abstract description 70
- 238000012544 monitoring process Methods 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 34
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 190
- 239000012855 volatile organic compound Substances 0.000 claims abstract description 55
- 239000013618 particulate matter Substances 0.000 claims description 54
- 238000012549 training Methods 0.000 claims description 44
- 238000012806 monitoring device Methods 0.000 claims description 28
- 230000001419 dependent effect Effects 0.000 claims description 9
- 239000005416 organic matter Substances 0.000 claims description 8
- 230000006870 function Effects 0.000 claims description 7
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 6
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 7
- 208000028659 discharge Diseases 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010517 secondary reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
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Abstract
The application discloses a method and a device for monitoring primary emission of fine particles, a storage medium and equipment, and belongs to the technical field of pollution monitoring. The method comprises the following steps: acquiring the concentration of volatile organic compounds, the concentration of nitric oxides and the concentration of fine particulate matters measured in a monitoring area; calculating the fitting concentration of the fine particles according to the concentration of the volatile organic compounds and the concentration of the nitrogen oxides; and determining whether the primary emission in the monitoring area exceeds the standard or not according to the concentration of the fine particulate matters and the fitting concentration of the fine particulate matters. This application can be according to volatile organic compounds concentration and nitrogen oxide concentration control fine particles's once discharge whether exceeds standard, improves the accuracy of the control of once discharging.
Description
Technical Field
The embodiment of the application relates to the technical field of pollution monitoring, in particular to a method, a device, a storage medium and equipment for monitoring primary emission of fine particles.
Background
The fine particulate matter in the air may be generated from a primary emission, which is mainly an artificial or natural source to directly emit the fine particulate matter, and a primary emission mainly generated from the combustion of fossil raw materials and biomass fuels. In the related art, a monitoring device may be provided in a monitoring area, and primary discharge of fine particulate matter is monitored by the monitoring device.
Since fine particles can be generated not only by one-time discharge, the precursor reaction can also generate fine particles, resulting in inaccurate one-time discharge monitoring of fine particles.
Disclosure of Invention
The embodiment of the application provides a method and a device for monitoring primary emission of fine particles, a storage medium and equipment, which are used for solving the problem of inaccurate monitoring of primary emission. The technical scheme is as follows:
in one aspect, there is provided a primary emission monitoring method of fine particulate matter, the method including:
acquiring the concentration of volatile organic compounds, the concentration of nitric oxides and the concentration of fine particulate matters measured in a monitoring area;
calculating the fitting concentration of the fine particles according to the concentration of the volatile organic compounds and the concentration of the nitrogen oxides;
and determining whether the primary emission in the monitoring area exceeds the standard or not according to the concentration of the fine particulate matters and the fitting concentration of the fine particulate matters.
In one possible implementation, the determining whether a primary emission in the monitored region is out of compliance based on the fine particulate concentration and the fine particulate fitted concentration includes:
if the concentration of the fine particulate matters is greater than the fitting concentration of the fine particulate matters, determining that the primary emission in the monitoring area exceeds the standard;
and if the concentration of the fine particulate matter is less than or equal to the fitting concentration of the fine particulate matter, determining that the primary emission in the monitored area does not exceed the standard.
In one possible implementation, the calculating a fine particulate matter fitted concentration from the volatile organic concentration and the nitrogen oxide concentration includes:
inputting the concentration of the volatile organic compounds and the concentration of the nitrogen oxides into a preset fitting model;
and determining the output result of the fitting model as the fitting concentration of the fine particulate matters.
In one possible implementation, the method further includes:
creating a training model and a training set;
and training the training model according to the training set to obtain the fitting model.
In one possible implementation, the training set includes a plurality of training samples, the training samples including independent variables and dependent variables; the independent variables comprise fine particulate matter concentration, and the dependent variables comprise volatile organic matter concentration, nitrogen oxide concentration, the ratio of the volatile organic matter concentration to the nitrogen oxide concentration, and the ratio of nitrogen dioxide concentration to nitric oxide concentration.
In one possible implementation, the training model is a half-variance function.
In one possible implementation, the acquiring the concentration of the volatile organic compounds, the concentration of the nitrogen oxides, and the concentration of the fine particulate matters measured in the monitoring area includes:
periodically acquiring the volatile organic compound concentration, the nitrogen oxide concentration, and the fine particulate matter concentration measured at the same position within the monitoring area.
In one aspect, there is provided a primary emission monitoring device of fine particulate matter, the device including:
the acquisition module is used for acquiring the concentration of volatile organic compounds, the concentration of nitric oxides and the concentration of fine particulate matters measured in the monitoring area;
the calculation module is used for calculating the fitting concentration of the fine particulate matters according to the concentration of the volatile organic compounds and the concentration of the nitrogen oxides;
and the monitoring module is used for determining whether primary emission in the monitoring area exceeds the standard or not according to the concentration of the fine particulate matters and the fitting concentration of the fine particulate matters.
In one aspect, a computer-readable storage medium having stored therein at least one instruction, which is loaded and executed by a processor, to implement a method of primary emission monitoring of fine particulate matter as described above is provided.
In one aspect, a computer apparatus is provided that includes a processor and a memory having stored therein at least one instruction that is loaded and executed by the processor to implement a primary emission monitoring method of fine particulate matter as described above.
The technical scheme provided by the embodiment of the application has the beneficial effects that at least:
through obtaining volatile organic compounds concentration, nitrogen oxide concentration and the fine particle concentration of measuring in the control area, calculate fine particle thing fit concentration according to volatile organic compounds concentration and nitrogen oxide concentration again, at last, confirm whether once discharging in the control area exceeds standard according to fine particle thing concentration and fine particle thing fit concentration, can be according to volatile organic compounds concentration and nitrogen oxide concentration control fine particle thing once discharging whether exceeds standard, improve the accuracy of the control of once discharging.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a flow chart of a method of primary emission monitoring of fine particulate matter provided in one embodiment of the present application;
FIG. 2 is a flow chart of a method of primary emission monitoring of fine particulate matter provided in accordance with an embodiment of the present application;
FIG. 3 is a schematic illustration of a fine particle concentration and a fine particle fit concentration provided by an embodiment of the present application;
FIG. 4 is a graphical illustration of fine particle concentration and fine particle fit concentration provided by an embodiment of the present application;
FIG. 5 is a block diagram illustrating an exemplary embodiment of a primary emission monitoring device for fine particulate matter;
fig. 6 is a block diagram illustrating a primary emission monitoring device for fine particulate matter according to an embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present application more clear, the embodiments of the present application will be further described in detail with reference to the accompanying drawings.
Referring to fig. 1, a flow chart of a method for monitoring primary emission of fine particulate matter, which may be applied to a computer device, according to an embodiment of the present application is shown. The primary emission monitoring method of fine particulate matter may include:
The monitoring area may be a geographical area with a predetermined size, which is divided in advance, or a geographical area divided according to an administrative area, such as a town and a town, which is not limited in this embodiment.
In this embodiment, the monitoring device may be installed in the monitoring area in advance, and the computer device obtains measurement data measured by the monitoring device. The volatile organic compound monitoring equipment, the nitrogen oxide monitoring equipment and the fine particle monitoring equipment are required to be arranged at the same position in the monitoring area, and therefore the computer equipment can obtain the concentration of the volatile organic compounds, the concentration of the nitrogen oxide and the concentration of the fine particle at the same position.
It should be noted that, when only one volatile organic compound monitoring device, one nitrogen oxide monitoring device, and one fine particulate matter monitoring device are arranged in the monitoring area, the computer device takes the measurement data of the volatile organic compound monitoring device as the volatile organic compound concentration, takes the measurement data of the nitrogen oxide monitoring device as the nitrogen oxide concentration, and takes the measurement data of the fine particulate matter monitoring device as the fine particulate matter concentration. When a plurality of volatile organic compound monitoring devices, a plurality of nitrogen oxide monitoring devices and a plurality of fine particulate matter monitoring devices are arranged in a monitoring area, the computer device takes the average value of the measurement data of the plurality of volatile organic compound monitoring devices as the concentration of volatile organic compounds, takes the average value of the measurement data of the plurality of nitrogen oxide monitoring devices as the concentration of nitrogen oxides, and takes the average value of the measurement data of the plurality of fine particulate matter monitoring devices as the concentration of fine particulate matter.
The fine particles can be generated not only by the primary discharge but also by the secondary reaction generated from the precursor through a complicated chemical reaction. In one example, the precursors may be Volatile Organic Compounds (VOCs) and nitrogen oxides (NOx), and the concentration of fine particulate matter measured by the monitoring device is one of the criteria for determining whether the emission in the monitored area is out of compliance, provided that the volatile organic compounds and nitrogen oxides react to form fine particulate matter.
And 102, calculating the fitting concentration of the fine particles according to the concentration of the volatile organic compounds and the concentration of the nitrogen oxides.
The computer equipment can calculate the fitting concentration of the fine particles by taking the concentration of the volatile organic compounds and the concentration of the nitric oxides as independent variables and taking the fitting concentration of the fine particles as dependent variables, and specific algorithms are described in detail in the following description and are not described in detail herein.
And 103, determining whether the primary emission in the monitoring area exceeds the standard or not according to the concentration of the fine particles and the fitting concentration of the fine particles.
The computer device can compare the fine particle concentration and the fitting concentration of the fine particles, and determine whether the primary emission in the monitored area exceeds the standard according to the comparison result.
To sum up, the fine particle's emission control method once that this application embodiment provided, through obtaining volatile organic compounds concentration, nitrogen oxide concentration and the fine particle concentration of measuring in the monitoring area, again according to volatile organic compounds concentration and nitrogen oxide concentration calculation fine particle fit concentration, finally, according to fine particle concentration and fine particle fit concentration confirm that the emission in the monitoring area is out of standard or not, can be according to volatile organic compounds concentration and nitrogen oxide concentration control fine particle's emission is out of standard or not, improve the accuracy of the control of emission once.
Referring to fig. 2, a flow chart of a method for monitoring primary emission of fine particulate matter, which may be applied to a computer device, according to an embodiment of the present application is shown. The primary emission monitoring method of fine particulate matter may include:
The method for measuring the concentration of the volatile organic compound, the concentration of the nitrogen oxide, and the concentration of the fine particulate matter is described in step 101, and is not described herein again.
In this embodiment, the computer device may set a period in advance, and periodically acquire the data. The periodic data acquisition may refer to acquiring data at a predetermined time point, for example, acquiring data at an integral point; it may also mean that data is acquired at predetermined time intervals, for example, data is acquired at one hour intervals, and this embodiment is not limited.
The computer device will perform step 202 and 205 to monitor whether the emission exceeds the standard or not each time the concentration of the volatile organic compounds, the concentration of the nitrogen oxides and the concentration of the fine particulate matters are obtained.
The computer device also needs to obtain a fitting model before performing step 202. The fitting model may be sent to the computer device after being trained by other devices, or may be obtained by training the computer device, and the source of the fitting model is not limited in this embodiment.
Taking the example of training the fitting model by the computer device, the computer device needs to create a training model and a training set, and train the training model according to the training set to obtain the fitting model. The training model may be a half variance function, and of course, the training model may also be other functions, which is not limited in this embodiment.
The training set comprises a plurality of training samples, and the training samples comprise independent variables and dependent variables; the independent variables include fine particulate matter concentration, and the dependent variables include volatile organic matter concentration, nitrogen oxide concentration, a ratio of volatile organic matter concentration to nitrogen oxide concentration, and a ratio of nitrogen dioxide concentration to nitric oxide concentration.
The computer equipment can input a plurality of training samples into the training model for training, the training is stopped until the training effect reaches the preset condition, and the final training model is used as a fitting model.
And step 203, determining the output result of the fitting model as the fitting concentration of the fine particles.
The fitting model can calculate the ratio of the concentration of the volatile organic compounds to the concentration of the nitrogen oxides according to the concentration of the volatile organic compounds and the concentration of the nitrogen oxides, calculate the ratio of the concentration of the nitrogen dioxide to the concentration of the nitrogen oxides according to the concentration of the nitrogen dioxide and the concentration of the nitrogen oxides in the concentration of the nitrogen oxides, and then calculate the two obtained ratios, the concentration of the volatile organic compounds and the concentration of the nitrogen oxides to obtain the fitting concentration of the fine particles.
After obtaining the fine particle fitting concentration, the computer device may compare the fine particle concentration with the fine particle fitting concentration, and if the fine particle concentration is greater than the fine particle fitting concentration, execute step 204; if the fine particle concentration is less than or equal to the fine particle fit concentration, step 205 is performed.
And step 204, if the concentration of the fine particles is greater than the fitting concentration of the fine particles, determining that the primary emission in the monitoring area exceeds the standard.
If the fine particle concentration is less than or equal to the fitted concentration of fine particles, it is determined that the primary emission in the monitored area is not out of compliance, step 205.
Referring to fig. 3 and 4, the x-axis of fig. 3 and 4 represents the concentration of volatile organic compounds, the y-axis represents the concentration of nitrogen oxides, the z-axis represents the concentration of fine particles, the curved surface consists of the fitted concentration of fine particles over time, and the scatter represents the measured concentration of fine particles. Then, when the computer equipment compares the fine particle concentration with the fitting concentration of the fine particles, and when the scattered point is judged to be above the curved surface, determining that the primary emission in the monitoring area exceeds the standard; and when the scattered points are judged to be on the curved surface or below the curved surface, determining that the primary discharge in the monitoring area does not exceed the standard.
To sum up, the fine particle's emission control method once that this application embodiment provided, through obtaining volatile organic compounds concentration, nitrogen oxide concentration and the fine particle concentration of measuring in the monitoring area, again according to volatile organic compounds concentration and nitrogen oxide concentration calculation fine particle fit concentration, finally, according to fine particle concentration and fine particle fit concentration confirm that the emission in the monitoring area is out of standard or not, can be according to volatile organic compounds concentration and nitrogen oxide concentration control fine particle's emission is out of standard or not, improve the accuracy of the control of emission once.
Referring to fig. 5, a block diagram of a primary emission monitoring device for fine particulate matter provided by an embodiment of the present application is shown, and the primary emission monitoring device for fine particulate matter can be applied to a computer device. The primary emission monitoring device of fine particulate matter may include:
an obtaining module 510, configured to obtain a concentration of volatile organic compounds, a concentration of nitrogen oxides, and a concentration of fine particulate matter measured in a monitoring area;
a calculation module 520, configured to calculate a fitting concentration of the fine particulate matter according to the concentration of the volatile organic compound and the concentration of the nitrogen oxide;
and a monitoring module 530 for determining whether primary emissions within the monitored region exceed a standard based on the concentration of the fine particulates and the fitted concentration of the fine particulates.
In an optional embodiment, the monitoring module 530 is further configured to:
if the concentration of the fine particles is greater than the fitting concentration of the fine particles, determining that the primary emission in the monitoring area exceeds the standard;
and if the concentration of the fine particulate matters is less than or equal to the fitting concentration of the fine particulate matters, determining that the primary emission in the monitoring area does not exceed the standard.
In an alternative embodiment, the calculating module 520 is further configured to:
inputting the concentration of the volatile organic compounds and the concentration of the nitric oxides into a preset fitting model;
and determining the output result of the fitting model as the fitting concentration of the fine particles.
In an alternative embodiment, referring to fig. 6, the apparatus further includes:
a creating module 540, configured to create a training model and a training set;
and a training module 550, configured to train the training model according to the training set to obtain a fitting model.
In an alternative embodiment, the training set includes a plurality of training samples, the training samples including independent variables and dependent variables; the independent variables include fine particulate matter concentration, and the dependent variables include volatile organic matter concentration, nitrogen oxide concentration, a ratio of volatile organic matter concentration to nitrogen oxide concentration, and a ratio of nitrogen dioxide concentration to nitric oxide concentration.
In an alternative embodiment, the training model is a half-variance function.
In an optional embodiment, the obtaining module 510 is further configured to:
the volatile organic compound concentration, the nitrogen oxide concentration, and the fine particulate matter concentration measured at the same position within the monitored area are periodically acquired.
To sum up, the emission monitoring device of fine particles that this application embodiment provided, through obtaining volatile organic compounds concentration, nitrogen oxide concentration and the fine particles concentration of measuring in the monitoring area, again according to volatile organic compounds concentration and nitrogen oxide concentration calculation fine particles fitting concentration, finally, according to fine particles concentration and fine particles fitting concentration determine the emission in the monitoring area whether exceeds standard, can monitor whether the emission of fine particles exceeds standard according to volatile organic compounds concentration and nitrogen oxide concentration, improve the accuracy of the control of emission.
One embodiment of the present application provides a computer readable storage medium having stored therein at least one instruction that is loaded and executed by a processor to implement a method for primary emission monitoring of fine particulate matter as described above.
One embodiment of the present application provides a computer device comprising a processor and a memory having stored therein at least one instruction that is loaded and executed by the processor to implement a primary emission monitoring method of fine particulate matter as described above.
It should be noted that: the primary emission monitoring device for fine particulate matter provided by the above embodiment is exemplified by only the division of the above functional modules when primary emission monitoring of fine particulate matter is performed, and in practical application, the above function distribution can be completed by different functional modules as required, that is, the internal structure of the primary emission monitoring device for fine particulate matter is divided into different functional modules, so as to complete all or part of the above described functions. In addition, the primary emission monitoring device for fine particulate matter provided by the above embodiment and the primary emission monitoring method embodiment for fine particulate matter belong to the same concept, and specific implementation processes thereof are described in the method embodiment in detail and are not described herein again.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description should not be taken as limiting the embodiments of the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the embodiments of the present application should be included in the scope of the embodiments of the present application.
Claims (10)
1. A primary emission monitoring method of fine particulate matter, characterized by comprising:
acquiring the concentration of volatile organic compounds, the concentration of nitric oxides and the concentration of fine particulate matters measured in a monitoring area;
calculating the fitting concentration of the fine particles according to the concentration of the volatile organic compounds and the concentration of the nitrogen oxides;
and determining whether the primary emission in the monitoring area exceeds the standard or not according to the concentration of the fine particulate matters and the fitting concentration of the fine particulate matters.
2. The method of claim 1, wherein said determining whether a primary emission within the monitored region is out of compliance based on the fine particulate concentration and the fine particulate fit concentration comprises:
if the concentration of the fine particulate matters is greater than the fitting concentration of the fine particulate matters, determining that the primary emission in the monitoring area exceeds the standard;
and if the concentration of the fine particulate matter is less than or equal to the fitting concentration of the fine particulate matter, determining that the primary emission in the monitored area does not exceed the standard.
3. The method of claim 1 or 2, wherein said calculating a fine particulate matter fit concentration from said volatile organic concentration and said nitrogen oxide concentration comprises:
inputting the concentration of the volatile organic compounds and the concentration of the nitrogen oxides into a preset fitting model;
and determining the output result of the fitting model as the fitting concentration of the fine particulate matters.
4. The method of claim 3, further comprising:
creating a training model and a training set;
and training the training model according to the training set to obtain the fitting model.
5. The method of claim 4, wherein the training set comprises a plurality of training samples, the training samples comprising independent variables and dependent variables; the independent variables comprise fine particulate matter concentration, and the dependent variables comprise volatile organic matter concentration, nitrogen oxide concentration, the ratio of the volatile organic matter concentration to the nitrogen oxide concentration, and the ratio of nitrogen dioxide concentration to nitric oxide concentration.
6. The method of claim 4, wherein the training model is a half-variance function.
7. The method of claim 1, wherein the obtaining the concentration of volatile organic compounds, the concentration of nitrogen oxides, and the concentration of fine particulate matter measured in the monitored area comprises:
periodically acquiring the volatile organic compound concentration, the nitrogen oxide concentration, and the fine particulate matter concentration measured at the same position within the monitoring area.
8. A primary emission monitoring device for fine particulate matter, the device comprising:
the acquisition module is used for acquiring the concentration of volatile organic compounds, the concentration of nitric oxides and the concentration of fine particulate matters measured in the monitoring area;
the calculation module is used for calculating the fitting concentration of the fine particulate matters according to the concentration of the volatile organic compounds and the concentration of the nitrogen oxides;
and the monitoring module is used for determining whether primary emission in the monitoring area exceeds the standard or not according to the concentration of the fine particulate matters and the fitting concentration of the fine particulate matters.
9. A computer readable storage medium having stored therein at least one instruction, which is loaded and executed by a processor, to implement a primary emission monitoring method of fine particulate matter as claimed in any one of claims 1 to 7.
10. A computer device, characterized in that it comprises a processor and a memory, in which at least one instruction is stored, which is loaded and executed by the processor to implement a method for primary emission monitoring of fine particulate matter according to any one of claims 1 to 7.
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| WO2012069963A1 (en) * | 2010-11-26 | 2012-05-31 | Koninklijke Philips Electronics N.V. | Sensor for assessing air pollution |
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Address after: 100071 Beijing Fengtai Auto Museum West Road No. 8 Courtyard 1 Building 6 Floor 606 Patentee after: Beijing Yingshi Ruida Technology Co.,Ltd. Address before: 100071 Beijing Fengtai Auto Museum West Road No. 8 Courtyard 1 Building 6 Floor 606 Patentee before: BEIJING INSIGHTS VALUE TECHNOLOGY Co.,Ltd. |