CN112198280A - Gas pollution source monitoring method, system, equipment and storage medium - Google Patents
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Abstract
The invention discloses a gas pollution source monitoring method, a system, equipment and a storage medium. Applied to sewage treatment plants, which is characterized by comprising the following steps: acquiring pollution source information; acquiring weather information; generating polluted gas prediction information according to a polluted gas point source model, the pollution source information and the weather information; and generating a polluted gas thermodynamic diagram according to the polluted gas prediction information, so that the deployment number of sensors can be reduced, the polluted gas concentration data is predicted through a polluted gas point source diffusion model, the coordinate set data and the polluted gas concentration data are associated to form the polluted gas thermodynamic diagram, the maintenance cost of an environment detection system is reduced, and the polluted gas thermodynamic diagram conforming to a sewage treatment plant can be obtained.
Description
Technical Field
The invention relates to the field of monitoring of sewage plants, in particular to a method, a system, equipment and a storage medium for monitoring a gas pollution source.
Background
With the increasing attention of people to environmental protection, sewage treatment plants are becoming an indispensable part of cities. However, due to the special production tasks and production environment of sewage plants, polluted gases are easily generated. Such a gas has a complex composition and has a great influence on the environment. The concentration and distribution range of the polluted gas have a great influence on the environmental assessment of the factory and the periphery.
Currently, a pollutant gas thermodynamic diagram is commonly used to monitor the concentration and distribution range of pollutant gases in sewage treatment plants. The concentration and distribution information of the polluted gas are required to be acquired by applying a polluted gas thermodynamic diagram, and a method for acquiring the concentration value of the polluted gas in real time by deploying a high-density polluted gas concentration sensor in a factory is adopted in the related technology; alternatively, an urban Atmospheric pollutant diffusion Modeling System (ADMS) is used to generate the data required to map the pollutant gas thermodynamic diagram. However, deploying high density sensors is costly to implement, the system is complex and requires processing of large amounts of data; the ADMS is a model designed based on open areas such as urban areas and cannot be directly applied to closed production environments such as sewage treatment plants.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a gas pollution source monitoring method, a system, equipment and a storage medium, which can reduce the deployment number of sensors, predict the polluted gas concentration data through a polluted gas point source diffusion model, associate the coordinate set data with the polluted gas concentration data to form a polluted gas thermodynamic diagram, reduce the maintenance cost of an environment detection system and obtain a thermodynamic distribution diagram conforming to a sewage treatment plant.
The gas pollution source monitoring method according to the embodiment of the first aspect of the invention is applied to a sewage treatment plant, and is characterized by comprising the following steps: acquiring pollution source information; acquiring weather information; generating polluted gas prediction information according to a polluted gas point source model, the first pollution source information and the weather information; and generating a polluted gas thermodynamic diagram according to the polluted gas prediction information.
The gas pollution source monitoring method provided by the embodiment of the invention at least has the following beneficial effects: the deployment quantity of the sensors can be reduced, the polluted gas point source diffusion model is used for predicting the polluted gas concentration data, the coordinate set data and the polluted gas concentration data are correlated, a polluted gas thermodynamic diagram is formed, the maintenance cost of the environment detection system is reduced, and the thermodynamic distribution diagram conforming to a sewage treatment plant can be obtained.
According to some embodiments of the invention, the model of a point source of contaminated gas comprises:
wherein λ iscAnd (4) the concentration value of the polluted gas, u is the real-time wind speed, r is the polar radius, and y is the ordinate of the vertical axis.
According to some embodiments of the invention, the gas pollution source monitoring method further comprises: and a detection process of the prediction information of the polluted gas, wherein the detection of the prediction information of the polluted gas is used for correcting the point source model of the polluted gas.
According to some embodiments of the invention, the process of detecting the prediction information of the contaminated gas comprises: acquiring actual information of the polluted gas; comparing the actual polluted gas information with the forecast polluted gas information, and obtaining a difference value between the actual polluted gas information and the forecast polluted gas information; judging whether the difference value exceeds a threshold value; if the difference value exceeds a threshold value, correcting the polluted gas point source model parameters; and if the difference is smaller than the threshold value, ending the detection process of the prediction information of the polluted gas.
According to some embodiments of the invention, the generating a contaminated gas thermodynamic diagram from the contaminated gas prediction information comprises: obtaining map information; generating polluted gas coordinate information according to the map information and the first pollution source information; generating the polluted gas thermodynamic diagram according to the coordinate information and the polluted gas prediction information.
According to some embodiments of the invention, the generating of the polluted gas coordinate information from the map information and the first pollution source information comprises: generating a polluted gas coordinate origin according to the first pollution source information; and generating polluted gas coordinate information according to the coordinate origin and the map.
A gas pollution source monitoring system according to an embodiment of the second aspect of the present invention is characterized by comprising: the pollution information acquisition module is used for acquiring first pollution source information; the weather information acquisition module is used for acquiring weather information; the polluted gas prediction information generation module is used for receiving the first pollution source information and the weather information and generating polluted gas prediction information; a contaminated gas thermodynamic diagram generation module; for generating the contaminated gas thermodynamic diagram.
The gas pollution source monitoring system provided by the embodiment of the invention at least has the following beneficial effects: the deployment quantity of the sensors can be reduced, the polluted gas point source diffusion model is used for predicting the polluted gas concentration data, the coordinate set data and the polluted gas concentration data are correlated, a polluted gas thermodynamic diagram is formed, the maintenance cost of the environment detection system is reduced, and the thermodynamic distribution diagram conforming to a sewage treatment plant can be obtained.
According to some embodiments of the invention, the gas pollution source monitoring system further comprises: the map acquisition module is used for acquiring map information; and the polluted gas coordinate generating module is used for generating polluted gas coordinates according to the first pollution source information and the map information.
A gas pollution source monitoring apparatus according to an embodiment of the third aspect of the present invention is characterized by comprising: at least one processor, and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of monitoring a source of gas pollution according to the first aspect.
The gas pollution source monitoring equipment provided by the embodiment of the invention at least has the following beneficial effects: the deployment quantity of the sensors can be reduced, the polluted gas point source diffusion model is used for predicting the polluted gas concentration data, the maintenance cost of the environment detection system is reduced, and the thermal distribution map which is in line with a sewage treatment plant can be obtained.
A computer-readable storage medium according to an embodiment of the fourth aspect of the present invention is characterized in that the computer-readable storage medium stores computer-executable instructions for causing a computer to execute the gas pollution source monitoring method according to the first aspect.
The computer-readable storage medium according to the embodiment of the invention has at least the following advantages: the method of the first aspect can be implemented, the maintenance cost of the environmental detection system is reduced, and the thermal distribution map of the polluted gas conforming to the sewage treatment plant can be obtained.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic flow chart of a method for monitoring a gas pollution source according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a method for monitoring a gas pollution source according to another embodiment of the present invention;
fig. 3 is a schematic connection diagram of a gas pollution source monitoring system according to an embodiment of the present invention.
Reference numerals:
a pollution information acquisition module 100; a weather information acquisition module 200; a contaminated gas prediction information generation module 300; the contaminated gas thermodynamic diagram is generated by module 400.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A pollution source monitoring method according to an embodiment of the present invention is described below with reference to fig. 1.
As shown in fig. 1, the method for monitoring a gas pollution source according to an embodiment of the present invention at least includes the following steps: step S101: acquiring pollution source information; step S102: acquiring weather information; step S103: generating polluted gas prediction information according to the Gaussian point source model, the pollution source information and the weather information; step S104: and generating a polluted gas thermodynamic diagram according to the polluted gas prediction information.
Step S101: and acquiring pollution source information.
In some embodiments, the detector is positioned around the source of contamination to better monitor the source of contamination information. The contaminant gas produced by the source of contamination includes, but is not limited to, at least one of hydrogen sulfide, ammonia, and methane. The contamination source information is from one or more detectors.
Step S102: and acquiring weather information.
In some embodiments, the weather information may be acquired by connecting a reserved interface to a meteorological system, the weather information at least includes air temperature, wind speed, and wind direction, and subsequent calculation is performed according to the acquired weather information.
Step S103: and generating polluted gas prediction information according to the polluted gas point source model, the polluted source information and the weather information.
In some embodiments, the pollutant gas prediction information is generated from the pollutant source information, the gaussian point source model, and the weather information to enable prediction of the distribution of the pollutant gas.
Step S104: and generating a polluted gas thermodynamic diagram according to the polluted gas prediction information.
In some embodiments, a contaminated gas thermodynamic map is generated from the contaminated gas prediction information.
In some embodiments, the pollution source in sewage treatment has the characteristics of fixed diffusion range, continuous gas generation, stable diffusion and the like. Under uniform weather conditions, the acquired concentration of the polluted gas of the sewage treatment plant fluctuates in a small range. And on the premise of not considering real-time performance, forming a polluted gas distribution basic diagram for sewage treatment according to the collected polluted gas information.
In some embodiments, to simplify the model, the seasonal average temperature, the seasonal average wind speed, and the wind direction that occurs the most in each season are selected to form a pollutant gas distribution base map for wastewater treatment when generating the pollutant gas distribution base map. Due to the fact that seasonal differences of weather adjustment are large, different pollutant gas distribution basic graphs are respectively established in different seasons.
In some embodiments, the present invention provides a method for monitoring a gas pollution source for monitoring a sewage treatment plant, wherein the possible gas pollution sources in the sewage treatment plant include: one or more of a pretreatment workshop, an aeration tank, a sludge storage tank, a sludge concentration tank and a sludge dewatering machine room. The pollution source can be determined, so that a sensor can be conveniently arranged, the monitoring of sewage treatment is realized, and the use of the sensor is reduced.
In some embodiments, the model of a point source of contaminated gas comprises:
wherein λ iscAs a concentration value of the polluted gas (mg/s), u is a real-time wind speed (m/s), r is a polar radius (m), and y is a vertical axis coordinate.
In some embodiments, the gas pollution source monitoring method further comprises: and (3) a detection process of the prediction information of the polluted gas, wherein the detection of the prediction information of the polluted gas is used for correcting a polluted gas point source model.
In some embodiments, the process of detecting the prediction information of the contaminated gas includes: acquiring actual information of the polluted gas; comparing the actual polluted gas information with the forecast information of the polluted gas, and acquiring a difference value between the actual polluted gas information and the forecast information of the polluted gas; judging whether the difference value exceeds a threshold value; if the difference value exceeds the threshold value, correcting the parameters of the point source model of the polluted gas; and if the difference value is smaller than the threshold value, ending the detection process of the prediction information of the polluted gas.
In some embodiments, generating the pollutant gas thermodynamic map from the pollutant gas prediction information comprises: obtaining map information; generating polluted gas coordinate information according to the map information and the pollution source information; and generating a polluted gas thermodynamic diagram according to the coordinate information and the polluted gas prediction information.
In some embodiments, generating the polluted gas coordinate information from the map information and the pollution source information includes: generating a polluted gas coordinate origin according to the pollution source information; and generating the coordinate information of the polluted gas according to the coordinate origin and the map.
In some embodiments, the pollutant gas prediction information comprises: step S201: acquiring a position of a pollution source; step S202: acquiring weather information; step S203: generating coordinate information; step S204: generating a thermal profile of the contaminated gas.
Step S201: and acquiring the position of the pollution source.
In some embodiments, the coordinates of the midpoint of the key pollution sources are determined, the midpoint of the building in which each odor source is located is taken and set to (x)c,yc)；
Step S202: and acquiring weather information.
In some embodiments, weather information is acquired, and the weather information can be acquired by connecting a reserved interface with a meteorological system.
Step S203: coordinate information is generated.
In some embodiments, the direction perpendicular to the wind direction is set as the horizontal axis x-axis, the direction of the wind direction is set as the vertical axis y-axis, and the angle with the horizontal axis x-axis is set as θ, θ ∈ [0, π ]. According to the trigonometric function, a cartesian coordinate system is established, which can result in: x is rcos θ and y is rsin θ.
In some embodiments, (x) willc,yc) As starting points, it can be derived:
x＝xc+rcosθ,y＝yc+rsinθ。
in some embodiments, the polar radius r is set to the distance of diffusion of the contaminant gas, and the farthest distance of diffusion of the contaminant gas is set to r0I.e. when the distance reaches r0It can be considered that the contaminated gas has no influence.
Step S204: generating a thermal profile of the contaminated gas.
In some embodiments, the origin of coordinates (x) of the key contamination source is determinedc,yc) I.e. λc. And then, carrying out real-time prediction on the concentration data of the polluted gas by applying a Gaussian point source diffusion model. Because the application scene is a sewage treatment plant, the pollution source is a ground source or an underground source, and because the diffusion point of the underground source is also on the ground, only the real-time concentration of the polluted gas of the ground axis is considered, and under the uniform atmospheric condition, the Gaussian point source diffusion model is as follows:
wherein Q is the source intensity;
is the average wind speed; sigmaxLongitudinal diffusion coefficient; sigmazIs the vertical diffusion coefficient; h is the height; x, y and z are respectively a horizontal axis coordinate, a vertical axis coordinate and a vertical axis coordinate.
In some embodiments, since only the ground axis concentration is considered, i.e. when x is 0, z is 0, and is the ground source and H is 0, it can be derived:
wherein Q is the source intensity, i.e., the origin of coordinates (x)c,yc) Concentration value lambda of pollutant gasc；
Is the average wind speed; sigmaxLongitudinal diffusion coefficient, i.e. the distribution of the contaminant in the direction of the longitudinal axis; sigmazIs the vertical diffusion coefficient; y is the ordinate of the vertical axis.
In some embodiments, let σ be due to ignoring the vertical casez1, and combining the actual conditions, the average wind speed is adjusted
Replacing with the real-time wind speed u, and using the reciprocal of the polar radius r as a different parameter to perform concentration calculation, it can be obtained that:
wherein λ iscAnd (4) the concentration value of the polluted gas, u is the real-time wind speed, r is the polar radius, and y is the ordinate of the vertical axis.
In some embodiments, in order to ensure that the numerical value in calculation is meaningful, u is 1.6m/s when u is less than 1.6m/s, so that the improved gaussian point-source diffusion model can be used for calculating the diffusion situation of the polluted gas.
In some embodiments, a model is built according to the acquired coordinates and the concentration of the polluted gas, and the model is rendered on a map to complete the thermodynamic map of the polluted gas.
A gas pollution source monitoring system according to an embodiment of the present invention includes: the pollution information acquisition module is used for acquiring pollution source information; the weather information acquisition module is used for acquiring weather information; the polluted gas prediction information generation module is used for receiving pollution source information and weather information and generating polluted gas prediction information; a contaminated gas thermodynamic diagram generation module; for generating a thermodynamic diagram of the contaminated gas.
Fig. 3 is a schematic connection diagram of a gas pollution source monitoring system according to an embodiment of the present invention.
The gas pollution source monitoring system as shown in fig. 3 at least comprises: a pollution information acquisition module 100; a weather information acquisition module 200; a contaminated gas prediction information generation module 300; the contaminated gas thermodynamic diagram is generated by module 400.
In some embodiments, the gas pollution source monitoring system further comprises: the map acquisition module is used for acquiring map information; and the polluted gas coordinate generating module is used for generating polluted gas coordinates according to the pollution source information and the map information.
The pollution source monitoring equipment according to the embodiment of the invention comprises: at least one processor, and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of monitoring a source of gaseous pollution as described above.
A computer-readable storage medium according to an embodiment of the present invention stores computer-executable instructions for causing a computer to perform the gas pollution source monitoring method as described above.
The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A monitoring method of a gas pollution source is applied to a sewage treatment plant and is characterized by comprising the following steps:
acquiring pollution source information;
acquiring weather information;
generating polluted gas prediction information according to a polluted gas point source model, the pollution source information and the weather information;
and generating a polluted gas thermodynamic diagram according to the polluted gas prediction information.
2. The method of monitoring a source of gaseous pollution according to claim 1, wherein said model of a point source of polluted gas comprises:
wherein λ iscAnd (4) the concentration value of the polluted gas, u is the real-time wind speed, r is the polar radius, and y is the ordinate of the vertical axis.
3. The method of monitoring a source of gaseous pollution according to claim 1, further comprising:
and a detection process of the prediction information of the polluted gas, wherein the detection of the prediction information of the polluted gas is used for correcting the point source model of the polluted gas.
4. The method of claim 3, wherein the flow of the predicted polluted gas information detection includes:
acquiring actual information of the polluted gas;
comparing the actual polluted gas information with the forecast polluted gas information, and obtaining a difference value between the actual polluted gas information and the forecast polluted gas information;
judging whether the difference value exceeds a threshold value;
if the difference value exceeds a threshold value, correcting the parameters of the polluted gas point source model;
and if the difference is smaller than the threshold value, ending the detection process of the prediction information of the polluted gas.
5. The method of claim 1, wherein the generating a pollutant gas thermodynamic map from the pollutant gas prediction information comprises:
obtaining map information;
generating polluted gas coordinate information according to the map information and the pollution source information;
generating the polluted gas thermodynamic diagram according to the polluted gas coordinate information and the polluted gas prediction information.
6. The method of claim 5, wherein the generating polluted gas coordinate information from the polluted gas map information and the polluted source information comprises:
generating a polluted gas coordinate origin according to the pollution source information;
and generating polluted gas coordinate information according to the polluted gas coordinate origin and the map information.
7. A gas pollution source monitoring system, comprising:
the pollution source information acquisition module is used for acquiring pollution source information;
the weather information acquisition module is used for acquiring weather information;
the polluted gas prediction information generation module is used for receiving the pollution source information and the weather information and generating polluted gas prediction information;
a polluted gas thermodynamic diagram generation module to generate the polluted gas thermodynamic diagram.
8. The gas pollution source monitoring system according to claim 7, further comprising:
the map acquisition module is used for acquiring map information;
and the polluted gas coordinate generating module is used for generating polluted gas coordinates according to the pollution source information and the map information.
9. A gas pollution source monitoring apparatus, comprising:
at least one processor, and,
a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of monitoring a source of gas pollution according to any one of claims 1 to 6.
10. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform the gas pollution source monitoring method according to any one of claims 1 to 6.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113793400A (en) * | 2021-09-14 | 2021-12-14 | 南京信息工程大学 | Construction method of gas concentration thermodynamic diagram |
| TWI812051B (en) * | 2022-03-08 | 2023-08-11 | 國立臺灣師範大學 | Volatile organic compounds concentration forecast method |
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