CN112651186B - Outdoor volatile matter leakage tracing method and device - Google Patents

Outdoor volatile matter leakage tracing method and device Download PDF

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CN112651186B
CN112651186B CN202011240957.5A CN202011240957A CN112651186B CN 112651186 B CN112651186 B CN 112651186B CN 202011240957 A CN202011240957 A CN 202011240957A CN 112651186 B CN112651186 B CN 112651186B
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leakage
processed
monitoring point
component
concentration
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CN112651186A (en
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陈涛
周成龙
陈雷
苏国锋
袁宏永
孙占辉
***
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Beijing Weiyute Technology Development Co ltd
Tsinghua University
Beijing Global Safety Technology Co Ltd
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Beijing Weiyute Technology Development Co ltd
Tsinghua University
Beijing Global Safety Technology Co Ltd
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Abstract

The application provides a leakage tracing method and device for outdoor volatile substances, wherein the method comprises the following steps: volatile substance information of each monitoring point in an outdoor area is acquired; determining the leakage time period of each monitoring point of the components to be processed according to the concentration information of the components to be processed at each acquisition time point and the concentration reference value corresponding to the components to be processed; acquiring wind field data of a monitoring point to be processed, and determining a potential leakage area of the monitoring point to be processed according to the wind field data; and determining the leakage point of the component to be processed in the leakage time period according to the concentration information of the component to be processed in the leakage time period at each monitoring point in the potential leakage area. The method realizes the leakage monitoring of volatile substances in real time, can discover the leakage situation in time, does not need to manually inspect the potential leakage area, has high automation degree, and can effectively monitor the equipment area which is difficult to reach by people.

Description

Outdoor volatile matter leakage tracing method and device
Technical Field
The application relates to the technical field of data processing, in particular to a leakage tracing method and device for outdoor volatile substances.
Background
At present, leakage of Volatile Organic Compounds (VOCs) in chemical industry parks can lead to material loss, environmental pollution and even huge casualties. The petrochemical industry is the main emission industry of industrial source VOCs in China, has large emission amount and mainly uses unorganized emission. In order to realize the VOCs treatment task, in the related technology, the unstructured emission of VOCs in equipment devices of petrochemical enterprises is controlled by adopting LDAR (Leak Detection And Repair, leakage detection and repair), namely sealing points, such as valves, in production devices of the enterprises, which are easy to generate VOCs leakage are quantitatively detected by utilizing fixed or portable detection equipment, and effective measures are taken to repair the leakage points within a certain period.
However, in the above-mentioned technique, adopting the periodic detection mode, can't realize real-time VOCs leakage monitoring, can't timely discovery leak the situation, in addition, above-mentioned technique adopts the manual work to carry the detecting instrument and patrol and examine potential leakage source, degree of automation is low and the manpower burden is big, and can't monitor the equipment region that the people is difficult to reach.
Disclosure of Invention
The object of the present application is to solve at least to some extent one of the above technical problems.
Therefore, the first object of the application is to provide a method for tracing leakage of volatile materials outdoors, which is characterized in that volatile material information of monitoring points is collected in real time, a leakage time period of the monitoring points is determined according to concentration reference values corresponding to components to be processed in the volatile material information, meanwhile, potential leakage areas of the monitoring points are determined by combining wind field data, and further, the leakage points of the components to be processed in the leakage time period are determined according to the concentration information of each monitoring point of the potential leakage areas, so that leakage monitoring of volatile materials in real time is realized, leakage situations can be found timely, inspection of the potential leakage areas is not needed manually, the automation degree is high, and equipment areas which are difficult to reach by people can be effectively monitored.
The second objective of the present application is to provide a leakage tracing device for outdoor volatile matters.
A third object of the present application is to propose an electronic device.
A fourth object of the present application is to propose a computer readable storage medium.
In order to achieve the above object, an embodiment of a first aspect of the present application provides a method for tracing leakage of outdoor volatile materials, including: volatile matter information of each monitoring point in the outdoor area is acquired, wherein the volatile matter information comprises: concentration information of at least one component of the volatile substance at each collection time point; determining the leakage time period of each to-be-processed component at each monitoring point according to the concentration information of the to-be-processed component at each acquisition time point and the concentration reference value corresponding to the to-be-processed component; acquiring wind field data of the monitoring point to be processed, and determining a potential leakage area of the monitoring point to be processed according to the wind field data; and determining the leakage point of the component to be processed in the leakage time period according to the concentration information of the component to be processed in the leakage time period on each monitoring point in the potential leakage area.
According to the outdoor volatile matter leakage tracing method, volatile matter information of each monitoring point in an outdoor area is obtained, and the volatile matter information comprises the following steps: concentration information of at least one component of the volatile substance at each collection time point; determining the leakage time period of each to-be-processed component at each monitoring point according to the concentration information of the to-be-processed component at each acquisition time point and the concentration reference value corresponding to the to-be-processed component; acquiring wind field data of the monitoring point to be processed, and determining a potential leakage area of the monitoring point to be processed according to the wind field data; and determining the leakage point of the component to be processed in the leakage time period according to the concentration information of the component to be processed in the leakage time period on each monitoring point in the potential leakage area. According to the method, volatile material information of the monitoring points is collected in real time, the leakage time period of the monitoring points is determined according to concentration reference values corresponding to components to be processed in the volatile material information, meanwhile, potential leakage areas of the monitoring points are determined by combining wind field data, and further, leakage points of the components to be processed in the leakage time period are determined according to the concentration information of all the monitoring points of the potential leakage areas, so that leakage monitoring of the volatile materials in real time is realized, leakage situations can be found timely, manual inspection of the potential leakage areas is not needed, the degree of automation is high, and equipment areas which are difficult to reach by people can be effectively monitored.
In order to achieve the above object, a second aspect of the present application provides an outdoor volatile material leakage tracing device, including: the acquisition module is used for acquiring volatile matter information of each monitoring point in the outdoor area, and the volatile matter information comprises: concentration information of at least one component of the volatile substance at each collection time point; the first determining module is used for determining the leakage time period of each to-be-processed component at each monitoring point according to the concentration information of the to-be-processed component at each acquisition time point and the concentration reference value corresponding to the to-be-processed component; the second determining module is used for acquiring wind field data of the monitoring point to be processed and determining a potential leakage area of the monitoring point to be processed according to the wind field data; and the third determining module is used for determining the leakage point of the component to be processed in the leakage time period according to the concentration information of the component to be processed in each monitoring point in the potential leakage area in the leakage time period.
According to the indoor volatile matter leakage tracing device provided by the embodiment of the application, volatile matter information of each monitoring point in an outdoor area is obtained, and the volatile matter information comprises: concentration information of at least one component of the volatile substance at each collection time point; determining the leakage time period of each to-be-processed component at each monitoring point according to the concentration information of the to-be-processed component at each acquisition time point and the concentration reference value corresponding to the to-be-processed component; acquiring wind field data of the monitoring point to be processed, and determining a potential leakage area of the monitoring point to be processed according to the wind field data; and determining the leakage point of the component to be processed in the leakage time period according to the concentration information of the component to be processed in the leakage time period on each monitoring point in the potential leakage area. The device can realize through the volatile material information of real-time collection monitoring point to confirm the leakage time quantum of monitoring point according to the concentration benchmark value that the pending composition corresponds in the volatile material information, combine wind field data to confirm the potential leakage area of monitoring point simultaneously, and then according to the concentration information of each monitoring point in potential leakage area, confirm the leakage point of pending composition in the leakage time quantum, realized the leakage monitoring to volatile material in real time, can discover the leakage situation in time, and need not the manual work to patrol and examine potential leakage area, degree of automation is high, can monitor effectively to the equipment area that the people is difficult to reach.
To achieve the above object, an embodiment of a third aspect of the present application provides an electronic device, including: the system comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, and is characterized in that the processor realizes the outdoor volatile substance leakage tracing method when executing the program.
In order to achieve the above object, a fourth aspect of the present application provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the outdoor volatile material leakage tracing method as described above.
Additional aspects and advantages of the application 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 application.
Drawings
The foregoing and/or additional aspects and advantages of the application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a flow chart of a method for tracing leakage of outdoor volatile materials according to an embodiment of the application;
FIG. 2 is mass spectrometer monitoring data according to one embodiment of the application;
FIG. 3 is a schematic diagram of a leak time period at a monitoring point for a component to be treated according to one embodiment of the application;
FIG. 4 is a flow chart of a method for tracing leakage of outdoor volatile matters according to another embodiment of the present application;
FIG. 5 is a graph showing benzene concentration reference values corresponding to different variance value coefficients according to an embodiment of the present application;
FIG. 6 is a flow chart of a method for tracing leakage of outdoor volatile materials according to another embodiment of the present application;
FIG. 7 is a schematic view of a scalloped area according to one embodiment of the present application;
FIG. 8 is a flow chart of a method for tracing leakage of outdoor volatile materials according to still another embodiment of the present application;
FIG. 9 is a schematic diagram of an outdoor volatile material leakage tracing device according to an embodiment of the present application;
fig. 10 is a schematic structural view of an electronic device according to an embodiment of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
The outdoor volatile matter leakage tracing method and device are described below with reference to the accompanying drawings.
Fig. 1 is a flow chart of a method for tracing leakage of outdoor volatile matters according to an embodiment of the application. It should be noted that, in the embodiment of the present disclosure, the execution body of the method for tracing leakage of an outdoor volatile material is a device for tracing leakage of an outdoor volatile material, where the device for tracing leakage of an outdoor volatile material may be a hardware device, or software in a hardware device, etc.
As shown in fig. 1, the specific implementation process of the outdoor volatile matter leakage tracing method is as follows:
step 101, volatile matter information of each monitoring point in an outdoor area is acquired, wherein the volatile matter information comprises: concentration information of at least one component of the volatile substance at each collection time point.
It should be appreciated that, since the environmental mass spectrometer may be equipped with a rapid multi-flow path sampler, the environmental mass spectrometer is installed in a chemical industry park, a plurality of sites where the rapid multi-flow path sampler of the environmental mass spectrometer is installed are used as monitoring points, the rapid multi-flow path sampler can collect volatile material information of the monitoring points in real time, and the obtained volatile material information of the monitoring points is stored in a designated database. For example, as shown in fig. 2, fig. 2 is mass spectrometer monitoring data according to one embodiment of the application.
In the embodiment of the application, the leakage tracing device of the outdoor volatile matters can acquire the volatile matter information of each monitoring point in the outdoor area by accessing the database. It should be noted that the volatile material information may include, but is not limited to, concentration information of at least one component of the volatile material at each collection time point. For example, the concentration information of 5 minutes at 5 days 1 and 5 days 1 in 2019 at a certain monitoring point is: air concentration of 99%, benzene concentration of 0.2%, alkane concentration of 0.8%, etc.
In order to make volatile material information more accurate, before the outdoor volatile material leakage tracing device accesses the database to acquire volatile material information of each monitoring point in the outdoor area, the volatile material information of the monitoring points can be acquired by the storage environment mass spectrometer for screening, and error data in the volatile material information can be deleted. For example, as shown in fig. 2, when the Air column value is 0, it indicates that an abnormal concentration extremum is present, and the concentration extremum may be deleted.
Step 102, determining a leakage time period of each monitoring point according to the concentration information of each monitoring point and the concentration reference value corresponding to each monitoring point.
Optionally, judging whether the concentration information of the to-be-processed component at each acquisition time point is larger than a concentration reference value corresponding to the to-be-processed component according to each to-be-processed component of each to-be-processed monitoring point; acquiring a first acquisition time point at which the corresponding concentration information is larger than a concentration reference value; and generating a leakage time period of the component to be processed at the monitoring point according to the first acquisition time point.
That is, as shown in fig. 3, a monitoring point where volatile substances exist may be regarded as a monitoring point to be processed, for each component of the volatile substances of the monitoring point to be processed, as a component to be processed of the monitoring point to be processed, concentration information of the component to be processed at each collection time point may be compared with a corresponding concentration reference value, when the concentration information of the component to be processed at each collection time point is greater than the corresponding concentration reference value, the collection time point may be regarded as a first collection time point, and a time period corresponding to the first collection time point may be regarded as a leakage time period of the component to be processed. The concentration information of the components to be processed at each acquisition time point continuously fluctuates due to the influence of the wind field, and the concentration information of the components to be processed in the leakage time period is obviously higher than the daily fluctuation. In addition, the number of the first collection time points may be one or more, and when the number of the first collection time points is one, a time period corresponding to the first collection time point to the next collection time point may be used as a leakage time period of the component to be processed at the monitoring point. When the number of the first collection time points is plural, a first collection time point in the first collection time points can be used as a starting point of the leakage time period, and a next collection time point of a last collection time point in the first collection time points can be used as an end point of the leakage time period.
It will be appreciated that, in order to better determine the leakage time period of the monitoring point, before comparing the concentration information of each component to be processed at each collection time point of each monitoring point to a corresponding concentration reference value, the concentration reference value corresponding to the component to be processed may be acquired first, and as an example, for each component to be processed, the concentration information of the component to be processed in the historical time period is acquired, a corresponding concentration average value and a concentration variance value are calculated according to the concentration information, and the corresponding concentration reference value is acquired according to the concentration average value and the concentration variance value, which will be specifically described in the following embodiments.
And 103, acquiring wind field data of the monitoring point to be processed, and determining a potential leakage area of the monitoring point to be processed according to the wind field data.
It can be understood that, because the path of volatile substances is greatly affected by the wind field when the volatile substances volatilize outdoors, in the embodiment of the application, after the leakage time period of the component to be processed at the monitoring point is determined, the wind field data of the monitoring point can be obtained.
As an example, atmospheric inflow data of an outdoor area within a preset time period is acquired; according to the atmospheric inflow data of the outdoor area in a preset time period, determining the dominant atmospheric inflow wind direction and the dominant atmospheric inflow wind speed of the outdoor area; inquiring a preset wind field database according to the dominant wind direction of the atmospheric incoming flow and the dominant wind speed of the atmospheric incoming flow, and acquiring wind field data of the monitoring point to be processed. The atmospheric inflow data may include, but is not limited to, an atmospheric inflow wind direction and an atmospheric inflow wind speed, among others.
That is, in the embodiment of the present application, the atmospheric incoming wind direction and the atmospheric incoming wind speed of the outdoor area within the preset period of time may be collected by the anemometer, for example, the atmospheric incoming wind direction and the atmospheric incoming wind speed 20 minutes before the leakage period of time are collected by the anemometer. And then, counting the air incoming flow wind direction, obtaining a corresponding wind direction average value, determining the wind direction average value as the air incoming flow dominant wind direction, and simultaneously counting the air incoming flow wind speed, obtaining a corresponding wind speed average value, and taking the wind speed average value as the air incoming flow dominant wind speed. Further, according to the obtained atmospheric incoming flow dominant wind speed and the obtained atmospheric incoming flow dominant wind direction, a preset wind field database is queried, so that wind field data corresponding to the atmospheric dominant wind speed and the atmospheric dominant wind direction are obtained, and the wind field data are used as wind field data of monitoring points to be processed. In order to better trace the source analysis, before the preset wind field database is queried according to the obtained dominant wind speed of the incoming air flow and dominant wind direction of the incoming air flow, the wind fields of different incoming equipment areas can be simulated according to computational fluid dynamics, and the wind field database is suggested and used as the preset wind field database.
In order to make the acquired atmospheric inflow data more accurate, the atmospheric inflow data having the abnormal condition may be deleted, and as an example, after the atmospheric inflow data of the outdoor area within the preset time period is acquired, it may be determined whether a first time point exists within the preset time period, where the atmospheric inflow data at the first time point satisfies the preset abnormal condition, and the preset abnormal condition includes at least one of the following conditions: the incoming atmospheric wind direction is larger than a first threshold value, and the incoming atmospheric wind speed is larger than a second threshold value; when the first time point exists, the atmospheric incoming flow data of the first time point is deleted.
For example, the incoming atmospheric wind direction is greater than a first threshold (e.g., 359), and/or the incoming atmospheric wind speed is greater than a second threshold (80), and/or the incoming atmospheric ambient temperature is less than a third threshold (e.g., -50 degrees celsius), and/or the incoming atmospheric pressure is greater than a fourth threshold (e.g., 1100), and the incoming atmospheric data satisfying the above conditions may be deleted.
In order to accurately determine the potential leakage area, in the embodiment of the application, after wind field data of the monitoring point to be processed is acquired, the potential leakage area of the monitoring point to be processed can be determined according to the wind field data. Optionally, acquiring a wind direction fluctuation angle of an atmospheric incoming flow of an outdoor area within a preset time period, manufacturing a sector area according to the dominant wind direction and the wind direction fluctuation angle of the to-be-monitored point, and taking the sector area as a potential leakage area of the to-be-processed monitored point. See the description of the embodiments that follow for details.
And 104, determining leakage points of the components to be processed in the leakage time period according to the concentration information of the components to be processed in the leakage time period at each monitoring point in the potential leakage area.
Optionally, for each monitoring point in the potential leakage area, the probability of the monitoring point based on the distance can be determined according to the position of the monitoring point and the position of the monitoring point to be processed, meanwhile, the probability of the monitoring point based on the component is determined according to the concentration information of the component to be processed in the leakage time period, then, the leakage probability of the monitoring point is determined according to the probability of the monitoring point based on the distance and the probability of the component, and the leakage point of the component to be processed in the leakage time period is determined according to the leakage probability of the monitoring point. See the description of the embodiments that follow for details.
In order to facilitate the subsequent query of the leakage information, the leakage information of the monitoring points in the corresponding potential area may be stored, as an example, after the leakage probability of the monitoring points in the potential area is determined, the leakage probability of the monitoring points in the potential area may be ranked, a corresponding ranking result may be obtained, a preset number of monitoring points ranked in front in the ranking result may be used as the first monitoring point, then the leakage information of the first monitoring point, for example, the identification, the leakage component, the leakage probability, the leakage time, and the like of the first monitoring point may be stored in a preset database.
In summary, by acquiring volatile material information of each monitoring point in the outdoor area, the volatile material information includes: concentration information of at least one component of the volatile substance at each collection time point; determining the leakage time period of each monitoring point of the components to be processed according to the concentration information of the components to be processed at each acquisition time point and the concentration reference value corresponding to the components to be processed; acquiring wind field data of a monitoring point to be processed, and determining a potential leakage area of the monitoring point to be processed according to the wind field data; according to the concentration information of the components to be processed in the leakage time period on each monitoring point in the potential leakage area, the leakage points of the components to be processed in the leakage time period are determined, so that the leakage monitoring of volatile substances is realized in real time, the leakage situation can be timely found, the potential leakage area is not required to be manually inspected, the automation degree is high, and the equipment area which is difficult to reach by people can be effectively monitored.
In order to better determine the leakage time period of the monitoring point, as shown in fig. 4, fig. 4 is a schematic flow chart of a method for tracing leakage of the outdoor volatile matters according to another embodiment of the application. In the embodiment of the present application, before comparing the concentration information of each component to be processed at each collection time point of each monitoring point to the corresponding concentration reference value, the concentration reference value corresponding to the component to be processed may be obtained first, as an example, for each component to be processed, the concentration information of the component to be processed in the historical time period is obtained, the corresponding concentration average value and the concentration variance value are calculated according to the concentration information, and the corresponding concentration reference value is obtained according to the concentration average value and the concentration variance value, and step 102 in the embodiment shown in fig. 1 includes the following steps:
In step 401, for each component to be processed, concentration information of the component to be processed in a history period is acquired.
In the embodiment of the application, the environmental mass spectrometer can acquire the concentration information of various components to be processed of volatile matters at the monitoring points, so before the concentration information of each component to be processed at each acquisition time point of each monitoring point to be compared with the corresponding concentration reference value, the environmental mass spectrometer can be used for acquiring the concentration information of each component to be processed in a historical time period, and the concentration information of the components to be processed in the historical time period can be acquired. The historical time period is a certain time period before concentration information of each component to be processed of each monitoring point to be processed at each acquisition time point is compared with a corresponding concentration reference value.
Step 402, calculating a concentration average value and a concentration variance value according to the concentration information of the component to be processed in the history period.
As an example, adding the concentration information corresponding to each component to be processed collected in the historical time period, and comparing the addition result with the collection times in the historical time period, so as to calculate the concentration average value of the component to be processed in the historical time period; then, according to the concentration information and the concentration average value of the to-be-processed component in the historical time period, the concentration variance value of the to-be-processed component in the historical time period can be calculated.
And step 403, determining a concentration reference value corresponding to the component to be processed according to the concentration average value and the concentration variance value.
Optionally, acquiring a preset variance value coefficient; obtaining a multiplied numerical value of the variance value coefficient and the concentration variance value; and adding the multiplied numerical value and the concentration average value to obtain a concentration reference value corresponding to the component to be treated.
That is, a variance value coefficient may be set in advance, the variance value coefficient is multiplied by a concentration variance value, then, a value obtained by multiplying the variance value coefficient by the concentration variance value is added to the concentration average value, and the addition result is used as a concentration reference value corresponding to the component to be processed. Here, different variance value coefficients may correspond to different concentration reference values.
For example, as shown in fig. 5, fig. 5 shows benzene concentration reference values corresponding to different variance value coefficients according to an embodiment of the present application. The concentration average value is added with the concentration variance of 1 time, 2 times or 3 times to obtain different concentration reference values, and noise with different scales can be filtered by setting the different concentration reference values. In order to provide more information for leakage tracing, for the monitoring points exceeding the concentration reference value, whether the monitoring points of the monitoring point accessories have the same leakage for the same material at the same time can be monitored, and the dominant sequence of the monitoring points is determined according to the concentration information of each monitoring point, so that more information is provided for leakage tracing.
In summary, for each component to be processed, concentration information of the component to be processed in a historical time period is obtained, a corresponding concentration average value and a concentration variance value are calculated according to the concentration information, a corresponding concentration reference value is obtained according to the concentration average value and the concentration variance value, and the concentration information of each component to be processed of each monitoring point to be processed at each acquisition time point is compared with the corresponding concentration reference value, so that the leakage time period of the monitoring point can be well determined.
In order to accurately determine the potential leakage areas, fig. 6 is a schematic flow chart of a method for tracing leakage of outdoor volatile matters according to another embodiment of the present application. In the embodiment of the application, after the wind field data of the monitoring point to be processed is obtained, the potential leakage area of the monitoring point to be processed can be determined according to the wind field data. Optionally, acquiring a wind direction fluctuation angle of an atmospheric incoming flow of an outdoor area within a preset time period, manufacturing a sector area according to the dominant wind direction and the wind direction fluctuation angle of the to-be-monitored point, and taking the sector area as a potential leakage area of the to-be-processed monitored point. Step 103 of the embodiment shown in fig. 1 includes the following steps:
and 601, obtaining the dominant wind direction of the monitoring point to be processed in the wind field data.
It may be appreciated that, in the embodiment of the present application, an average wind direction in wind field data of an atmospheric inflow may be taken as a dominant wind direction of the atmospheric inflow, and an average wind speed in wind field data may be taken as a dominant wind speed of the atmospheric inflow. According to the dominant wind direction and dominant wind speed of the atmospheric incoming flow, a preset wind field database is queried, wind field data of a monitoring point to be processed can be obtained, and wind direction data in the wind field data is used as the dominant wind direction of the monitoring point to be processed.
Step 602, obtaining a wind direction fluctuation angle of an atmospheric incoming flow of an outdoor area within a preset time period.
As an example, the method may include collecting time points of a plurality of atmospheric flows within a preset time period, each collecting time point corresponds to a wind direction of one atmospheric flow, statistics is performed on wind directions in atmospheric flow data corresponding to the collecting time points, the wind directions corresponding to the collecting time points are ordered, wind directions corresponding to a preset number of collecting time points in front of the order are taken as samples, and an offset of the samples relative to a main wind direction of the atmospheric flow is calculated by the following formula:
δ i ＝min(360-|θ i -θ d |,|θ i -θ d |)
wherein delta i For sample θ i Dominant wind direction θ relative to the incoming flow of the atmosphere d Is set in the above-described range.
Then, based on the sample θ i Dominant wind direction θ relative to the incoming flow of the atmosphere d Offset delta of (2) i The corresponding average wind direction offset can be calculated, specifically by the following formula:
where m is the total number of samples,is the average shift in wind direction.
Further, in the embodiment of the application, the dominant wind directions of all monitoring points flowing down different atmospheres can be obtained through computational fluid dynamics simulation, a wind direction conversion table can be constructed according to the dominant wind directions, and the dominant wind direction theta of the atmospheric flowing down can be obtained by inquiring the wind direction conversion table d The wind direction fluctuation angle of the atmospheric incoming flow of the outdoor area in the preset time period can be calculated according to the local dominant wind direction of the monitoring point and the average wind direction offset, and the wind direction fluctuation angle can be expressed as the following formula:
wherein θ local To monitor the local prevailing wind direction at the point,is the average shift in wind direction.
And 603, taking the monitoring point to be processed as a sector origin, presetting a numerical value as a sector radius, taking the dominant wind direction of the monitoring point to be processed as the direction of a sector center line, taking the wind direction fluctuation angle as a sector central angle, and manufacturing a sector area.
Step 604, determining the sector area as a potential leakage area of the monitoring point to be processed.
As an example, as shown in fig. 7, after obtaining the dominant wind direction of the monitoring point to be processed and the wind direction fluctuation angle of the atmospheric inflow of the outdoor area, a fan-shaped area is manufactured by taking the monitoring point to be processed as an origin, a preset value as a fan-shaped radius, the dominant wind direction of the monitoring point to be processed as the direction of the fan-shaped center line, and the wind direction fluctuation angle as the fan-shaped central angle. And meanwhile, determining the leakage points covered in the sector area as potential leakage areas of the monitoring points to be processed.
In sum, through obtaining the wind direction fluctuation angle of the outdoor regional atmospheric inflow in the preset time period, according to the leading wind direction and the wind direction fluctuation angle of waiting the monitoring point, make the fan-shaped region, regard this fan-shaped region as waiting to handle the potential of monitoring point and leak the area, from this, can confirm the potential accurately and leak the area, need not the manual work to the potential area of leaking to patrol and examine, degree of automation is high.
In order to accurately determine the leakage point of the outdoor volatile material in the leakage time period, and improve the accuracy of tracing the leakage of the outdoor volatile material, as shown in fig. 8, for each monitoring point in the potential leakage area, the probability of the monitoring point based on the distance may be determined according to the position of the monitoring point and the position of the monitoring point to be processed, and meanwhile, the probability of the monitoring point based on the component may be determined according to the concentration information of the component to be processed in the leakage time period, then, the leakage probability of the monitoring point may be determined according to the probability of the monitoring point based on the distance and the probability of the component, and thus, the leakage point of the component to be processed in the leakage time period may be determined according to the leakage probability of the monitoring point, and in step 104 of the embodiment shown in fig. 1 may include the following steps:
Step 801, determining a distance-based probability of the monitoring point according to the position of the monitoring point and the position of the monitoring point to be processed for each monitoring point in the potential leakage area.
In order to save calculation resources, in the embodiment of the application, whether the area where the outdoor leakage point is located is judged to be in the potential area or not, if the area where the outdoor leakage point is located is in the potential area, a plurality of leakage points exist in the potential leakage area, and the leakage points of components to be processed in the potential leakage area in the leakage time period can be further determined. If the area of the outdoor leakage point is not in the potential area, the leakage point can be used as the leakage point of the component to be treated in the leakage time period.
For example, the coordinates of the monitoring point located in the leakage time period in the three-dimensional rectangular coordinate system are a= (x) 1 ,y 1 ,z 1 ) The coordinates of the area where the outdoor leakage point is located are B= (x) 2 ,y 2 ,z 2 ) For example, vectorsVector->Direction angle θ projected on the ground AB Is that
If theta is AB And in the range of the wind direction fluctuation angle, the area where the outdoor leakage point is positioned is in the potential leakage area, and the leakage point of the component to be treated in the potential leakage area in the leakage time period needs to be further determined. If theta is AB The leakage point is not in the range of the wind direction fluctuation angle, and can be used as the leakage point of the component to be treated in the leakage time period.
When the area where the outdoor leakage point is located in the potential area, the leakage point of the component to be processed in the potential leakage area in the leakage time period can be further determined, and as an example, the distance-based probability of the monitoring point can be determined according to the position of the monitoring point and the position of the monitoring point to be processed for each monitoring point in the potential leakage area.
For example, the coordinates of the monitoring point where the leakage period is located in a three-dimensional rectangular coordinate system are a= (x) 1 ,y 1 ,z 1 ) The potential leakage area has n leakage points, each of which may be represented as pi= (x) i ,y i ,z i ) I=1, 2,..n, monitoringThe Euclidean distance of point A from the leak point pi of the potential leak area can be expressed as:
the distance-based probability of the monitoring point isWherein if d i =0, can set d i A smaller value (e.g., 0.000001).
And step 802, determining the probability of the monitoring point based on the components according to the concentration information of the components to be processed at the monitoring point in the leakage time period.
As an example, the probability of the monitoring point based on the component can be set according to the concentration information of the component to be processed at the monitoring point in the leakage time period, the higher the concentration information of the component to be processed at the monitoring point in the leakage time period is, the higher the probability of the corresponding monitoring point based on the component is, for example, the component to be processed is benzene, the concentration information of the component benzene at the monitoring point in the leakage time period is 0.2%, and the probability of the monitoring point based on the benzene component is 10%; for another example, the component to be treated is "alkane", the concentration information of the component "alkane" at the monitoring point in the leakage period is 0.8%, and the probability of the monitoring point based on "alkane" is 40%.
Step 803, determining the leakage probability of the monitoring point according to the distance-based probability and the component-based probability of the monitoring point.
Further, after the distance-based probability and the component-based probability of the monitoring point are obtained, the leakage probability of the monitoring point can be determined according to the distance-based probability and the component-based probability of the monitoring point, which can be expressed as the following formula:
p i ＝ω d ·p di +(1-ω d )·a i ；
wherein p is i To monitor the leakage probability of point i, p di Distance-based probability, a, for monitoring point i i To monitorPoint i is based on the probability of the component, ω d Is a distance weight (default 0.99).
Step 804, determining leakage points of the component to be processed in the leakage time period according to the leakage probability of each monitoring point in the potential leakage area.
As an example, the monitoring point with the highest leakage probability of the potential leakage area monitoring point can be used as the leakage point of the component to be processed in the leakage time period.
In summary, for each monitoring point in the potential leakage area, the distance-based probability of the monitoring point is determined according to the position of the monitoring point and the position of the monitoring point to be processed, meanwhile, the component-based probability of the monitoring point is determined according to the concentration information of the component to be processed in the leakage time period, then, the leakage probability of the monitoring point is determined according to the distance-based probability of the monitoring point and the component-based probability, and the leakage point of the component to be processed in the leakage time period is determined according to the leakage probability of the monitoring point, so that the leakage point of the outdoor volatile substance in the leakage time period can be accurately determined, and the accuracy of the leakage tracing of the outdoor volatile substance is improved.
According to the outdoor volatile matter leakage tracing method, volatile matter information of each monitoring point in an outdoor area is obtained, and the volatile matter information comprises the following steps: concentration information of at least one component of the volatile substance at each collection time point; determining the leakage time period of each monitoring point of the components to be processed according to the concentration information of the components to be processed at each acquisition time point and the concentration reference value corresponding to the components to be processed; acquiring wind field data of a monitoring point to be processed, and determining a potential leakage area of the monitoring point to be processed according to the wind field data; and determining the leakage point of the component to be processed in the leakage time period according to the concentration information of the component to be processed in the leakage time period at each monitoring point in the potential leakage area. According to the method, volatile material information of the monitoring points is collected in real time, the leakage time period of the monitoring points is determined according to concentration reference values corresponding to components to be processed in the volatile material information, meanwhile, potential leakage areas of the monitoring points are determined by combining wind field data, and further, leakage points of the components to be processed in the leakage time period are determined according to the concentration information of all the monitoring points of the potential leakage areas, so that leakage monitoring of the volatile materials in real time is realized, leakage situations can be found timely, manual inspection of the potential leakage areas is not needed, the degree of automation is high, and equipment areas which are difficult to reach by people can be effectively monitored.
Fig. 9 is a schematic structural diagram of an outdoor volatile material leakage tracing device according to an embodiment of the present application. As shown in fig. 9, the outdoor volatile matter leakage tracing device 900 includes: an acquisition module 910, a first determination module 920, a second determination module 930, and a third determination module 940.
The acquiring module 910 is configured to acquire volatile material information of each monitoring point in the outdoor area, where the volatile material information includes: concentration information of at least one component of the volatile substance at each collection time point; the first determining module 920 is configured to determine, for each component to be processed of each monitoring point to be processed, a leakage time period of the component to be processed at the monitoring point according to concentration information of the component to be processed at each acquisition time point and a concentration reference value corresponding to the component to be processed; and the second determining module 930 is configured to obtain wind field data of the to-be-processed monitoring point, and determine a potential leakage area of the to-be-processed monitoring point according to the wind field data.
As a possible implementation manner of the embodiment of the present application, the outdoor volatile matter leakage tracing device 900 further includes: the device comprises a concentration acquisition module, a calculation module and a fourth determination module.
The concentration acquisition module is used for acquiring concentration information of each component to be processed in a historical time period; the calculating module is used for calculating a concentration average value and a concentration variance value according to the concentration information of the component to be processed in the historical time period; and the fourth determining module is used for determining a concentration reference value corresponding to the component to be processed according to the concentration average value and the concentration variance value.
As a possible implementation manner of the embodiment of the present application, the fourth determining module is specifically configured to obtain a preset variance value coefficient; obtaining a multiplied numerical value of the variance value coefficient and the concentration variance value; and adding the multiplied numerical value and the concentration average value to obtain a concentration reference value corresponding to the component to be treated.
As a possible implementation manner of the embodiment of the present application, the first determining module 920 is specifically configured to determine, for each component to be processed of each monitoring point to be processed, whether concentration information of the component to be processed at each collection time point is greater than a concentration reference value corresponding to the component to be processed; acquiring a first acquisition time point at which the corresponding concentration information is larger than a concentration reference value; and generating a leakage time period of the component to be processed at the monitoring point according to the first acquisition time point.
As a possible implementation manner of the embodiment of the present application, the second determining module 930 is specifically configured to obtain atmospheric inflow data of an outdoor area within a preset period of time; according to the atmospheric inflow data of the outdoor area in a preset time period, determining the dominant atmospheric inflow wind direction and the dominant atmospheric inflow wind speed of the outdoor area; inquiring a preset wind field database according to the dominant wind direction of the atmospheric incoming flow and the dominant wind speed of the atmospheric incoming flow, and acquiring wind field data of the monitoring point to be processed.
As one possible implementation of the embodiment of the present application, the atmospheric incoming data includes: the atmospheric inflow wind direction and the atmospheric inflow wind speed; the second determining module 930 is further configured to obtain an average wind direction value of the incoming air flow direction in a preset time period, and determine the average wind direction value as the main air flow direction of the incoming air flow; and obtaining a wind speed average value of the atmospheric incoming flow wind speed within a preset time period, and determining the wind speed average value as the atmospheric incoming flow dominant wind speed.
As a possible implementation manner of the embodiment of the present application, the second determining module 930 is specifically configured to obtain a dominant wind direction and a dominant wind speed of a monitoring point to be processed in wind field data; acquiring a wind direction fluctuation angle of the atmospheric incoming flow of the outdoor area within a preset time period; taking a monitoring point to be processed as a sector origin, presetting a numerical value as a sector radius, taking the dominant wind direction of the monitoring point to be processed as the direction of a sector center line, taking the wind direction fluctuation angle as a sector central angle, and manufacturing a sector area; and determining the sector area as a potential leakage area of the monitoring point to be processed.
As a possible implementation manner of the embodiment of the present application, the outdoor volatile matter leakage tracing device 900 further includes: and the judging module and the deleting module.
The judging module is used for judging whether a first time point exists in the preset time period, wherein the atmospheric incoming flow data of the first time point meets preset abnormal conditions, and the preset abnormal conditions comprise at least one of the following conditions: the incoming atmospheric wind direction is larger than a first threshold value, and the incoming atmospheric wind speed is larger than a second threshold value; and the deleting module is used for deleting the atmospheric incoming flow data at the first time point when the first time point exists.
As a possible implementation manner of the embodiment of the present application, the third determining module 940 is specifically configured to determine, for each monitoring point in the potential leakage area, a distance-based probability of the monitoring point according to a position of the monitoring point and a position of the monitoring point to be processed; determining the probability of the monitoring point based on the components according to the concentration information of the components to be processed at the monitoring point in the leakage time period; determining leakage probability of the monitoring point according to the distance-based probability and the component-based probability of the monitoring point; and determining the leakage point of the component to be processed in the leakage time period according to the leakage probability of each monitoring point in the potential leakage area.
As a possible implementation manner of the embodiment of the present application, the outdoor volatile matter leakage tracing device 900 further includes: the device comprises a sequencing acquisition module, a leakage acquisition module and a storage module.
The sequencing acquisition module is used for sequencing each monitoring point in the potential leakage area according to the corresponding leakage probability to acquire a sequencing result; the leakage acquisition module is used for acquiring leakage information of the first monitoring point, wherein the leakage information comprises: identification of a first monitoring point, leakage component, leakage probability and leakage time; the storage module is used for storing the leakage information of the first monitoring point into a preset database.
According to the outdoor volatile matter leakage tracing device provided by the embodiment of the application, volatile matter information of each monitoring point in an outdoor area is obtained, and the volatile matter information comprises: concentration information of at least one component of the volatile substance at each collection time point; determining the leakage time period of each monitoring point of the components to be processed according to the concentration information of the components to be processed at each acquisition time point and the concentration reference value corresponding to the components to be processed; acquiring wind field data of a monitoring point to be processed, and determining a potential leakage area of the monitoring point to be processed according to the wind field data; and determining the leakage point of the component to be processed in the leakage time period according to the concentration information of the component to be processed in the leakage time period at each monitoring point in the potential leakage area. The device can realize through the volatile material information of real-time collection monitoring point to confirm the leakage time quantum of monitoring point according to the concentration benchmark value that the pending composition corresponds in the volatile material information, combine wind field data to confirm the potential leakage area of monitoring point simultaneously, and then according to the concentration information of each monitoring point in potential leakage area, confirm the leakage point of pending composition in the leakage time quantum, realized the leakage monitoring to volatile material in real time, can discover the leakage situation in time, and need not the manual work to patrol and examine potential leakage area, degree of automation is high, can monitor effectively to the equipment area that the people is difficult to reach.
In order to implement the above embodiment, the present application further proposes an electronic device, and fig. 10 is a schematic structural diagram of the electronic device according to an embodiment of the present application. The electronic device includes:
memory 1001, processor 1002, and a computer program stored on memory 1001 and executable on processor 1002.
The processor 1002 implements the outdoor volatile material leakage tracing method provided in the above embodiment when executing the program.
Further, the electronic device further includes:
a communication interface 1003 for communication between the memory 1001 and the processor 1002.
Memory 1001 for storing computer programs that may be run on processor 1002.
Memory 1001 may include high-speed RAM memory and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
The processor 1002 is configured to implement the outdoor volatile material leakage tracing method according to the above embodiment when executing the program.
If the memory 1001, the processor 1002, and the communication interface 1003 are implemented independently, the communication interface 1003, the memory 1001, and the processor 1002 may be connected to each other through a bus and perform communication with each other. The bus may be an industry standard architecture (Industry Standard Architecture, abbreviated ISA) bus, an external device interconnect (Peripheral Component, abbreviated PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated EISA) bus, among others. The buses may be classified as address buses, data buses, control buses, etc. For ease of illustration, only one thick line is shown in fig. 10, but not only one bus or one type of bus.
Alternatively, in a specific implementation, if the memory 1001, the processor 1002, and the communication interface 1003 are integrated on a chip, the memory 1001, the processor 1002, and the communication interface 1003 may complete communication with each other through internal interfaces.
The processor 1002 may be a central processing unit (Central Processing Unit, abbreviated as CPU) or an application specific integrated circuit (Application Specific Integrated Circuit, abbreviated as ASIC) or one or more integrated circuits configured to implement embodiments of the present application.
In order to implement the above embodiment, the embodiment of the present application further proposes a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the outdoor volatile material leakage tracing method of the above embodiment.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present application. In this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As with the other embodiments, if implemented in hardware, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like. While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (16)

1. The outdoor volatile matter leakage tracing method is characterized by comprising the following steps of:
volatile matter information of each monitoring point in the outdoor area is acquired, wherein the volatile matter information comprises: concentration information of at least one component of the volatile substance at each collection time point;
determining the leakage time period of each to-be-processed component at each monitoring point according to the concentration information of the to-be-processed component at each acquisition time point and the concentration reference value corresponding to the to-be-processed component;
acquiring wind field data of the monitoring point to be processed, and determining a potential leakage area of the monitoring point to be processed according to the wind field data;
determining leakage points of the components to be processed in the leakage time period according to concentration information of the components to be processed in the leakage time period on each monitoring point in the potential leakage area;
The obtaining the wind field data of the monitoring point to be processed comprises the following steps:
acquiring atmospheric inflow data of the outdoor area within a preset time period;
according to the atmospheric inflow data of the outdoor area in the preset time period, determining the atmospheric inflow dominant wind direction and the atmospheric inflow dominant wind speed of the outdoor area;
inquiring a preset wind field database according to the dominant atmospheric incoming flow wind direction and the dominant atmospheric incoming flow wind speed to acquire wind field data of the monitoring point to be processed;
determining the leakage point of the component to be processed in the leakage time period according to the concentration information of the component to be processed in the leakage time period on each monitoring point in the potential leakage area, wherein the method comprises the following steps:
determining the distance-based probability of each monitoring point in the potential leakage area according to the position of the monitoring point and the position of the monitoring point to be processed;
determining the component-based probability of the monitoring point according to the concentration information of the component to be processed at the monitoring point in the leakage time period;
determining the leakage probability of the monitoring point according to the distance-based probability and the component-based probability of the monitoring point;
Determining leakage points of the to-be-processed component in the leakage time period according to the leakage probability of each monitoring point in the potential leakage area;
sequencing each monitoring point in the potential leakage area according to the corresponding leakage probability to obtain a sequencing result;
acquiring a preset number of first monitoring points which are ranked in front in the ranking result;
acquiring leakage information of the first monitoring point, wherein the leakage information comprises: the identification, leakage components, leakage probability and leakage time of the first monitoring point;
and storing the leakage information of the first monitoring point into a preset database.
2. The method according to claim 1, wherein the determining, for each component to be processed of each monitoring point to be processed, a leakage period of the component to be processed before the monitoring point according to concentration information of the component to be processed at each collection time point and a concentration reference value corresponding to the component to be processed, further comprises:
for each component to be processed, acquiring concentration information of the component to be processed in a historical time period;
calculating a concentration average value and a concentration variance value according to the concentration information of the to-be-processed component in the historical time period;
And determining a concentration reference value corresponding to the component to be treated according to the concentration average value and the concentration variance value.
3. The method according to claim 2, wherein determining the concentration reference value corresponding to the component to be processed according to the concentration average value and the concentration variance value includes:
acquiring a preset variance value coefficient;
obtaining a multiplied numerical value of the variance value coefficient and the concentration variance value;
and adding the multiplied numerical value and the concentration average value to obtain a concentration reference value corresponding to the component to be treated.
4. The method according to claim 1, wherein the determining, for each component to be processed of each monitoring point to be processed, a leakage period of the component to be processed at the monitoring point according to concentration information of the component to be processed at each collection time point and a concentration reference value corresponding to the component to be processed includes:
judging whether concentration information of each to-be-processed component at each acquisition time point is larger than a concentration reference value corresponding to the to-be-processed component according to each to-be-processed component of each to-be-processed monitoring point;
Acquiring a first acquisition time point at which the corresponding concentration information is larger than the concentration reference value;
and generating a leakage time period of the component to be processed at the monitoring point according to the first acquisition time point.
5. The method of claim 1, wherein the atmospheric inflow data comprises: the atmospheric inflow wind direction and the atmospheric inflow wind speed;
the determining, according to the atmospheric inflow data of the outdoor area within the preset time period, an atmospheric inflow dominant wind direction and an atmospheric inflow dominant wind speed of the outdoor area includes:
acquiring a wind direction average value of the wind direction of the air incoming flow in the preset time period, and determining the wind direction average value as the dominant wind direction of the air incoming flow;
and acquiring a wind speed average value of the atmospheric incoming flow wind speed within the preset time period, and determining the wind speed average value as the atmospheric incoming flow dominant wind speed.
6. The method of claim 1 or 4, wherein said determining potential leakage areas of the to-be-treated monitoring point from the wind farm data comprises:
acquiring dominant wind directions and dominant wind speeds of the monitoring points to be processed in the wind field data;
acquiring a wind direction fluctuation angle of the atmospheric incoming flow of the outdoor area within a preset time period;
Taking the monitoring point to be processed as a sector origin, presetting a numerical value as a sector radius, taking the dominant wind direction of the monitoring point to be processed as the direction of a sector center line, taking the wind direction fluctuation angle as a sector central angle, and manufacturing a sector area;
and determining the sector area as a potential leakage area of the monitoring point to be processed.
7. The method of claim 1, wherein after the acquiring the atmospheric inflow data of the outdoor area within the preset period of time, further comprising:
judging whether a first time point exists in the preset time period, wherein the atmospheric incoming flow data of the first time point meets preset abnormal conditions, and the preset abnormal conditions comprise at least one of the following conditions: the incoming atmospheric wind direction is larger than a first threshold value, and the incoming atmospheric wind speed is larger than a second threshold value;
and deleting the atmospheric incoming flow data at the first time point when the first time point exists.
8. The utility model provides a leak traceability device of outdoor volatile material which characterized in that includes:
the acquisition module is used for acquiring volatile matter information of each monitoring point in the outdoor area, and the volatile matter information comprises: concentration information of at least one component of the volatile substance at each collection time point;
The first determining module is used for determining the leakage time period of each to-be-processed component at each monitoring point according to the concentration information of the to-be-processed component at each acquisition time point and the concentration reference value corresponding to the to-be-processed component;
the second determining module is used for acquiring wind field data of the monitoring point to be processed and determining a potential leakage area of the monitoring point to be processed according to the wind field data;
the third determining module is used for determining leakage points of the components to be processed in the leakage time period according to concentration information of the components to be processed in the potential leakage area at each monitoring point in the leakage time period;
the second determining module is specifically configured to,
acquiring atmospheric inflow data of the outdoor area within a preset time period;
according to the atmospheric inflow data of the outdoor area in the preset time period, determining the atmospheric inflow dominant wind direction and the atmospheric inflow dominant wind speed of the outdoor area;
inquiring a preset wind field database according to the dominant atmospheric incoming flow wind direction and the dominant atmospheric incoming flow wind speed to acquire wind field data of the monitoring point to be processed;
The third determining module is specifically configured to,
determining the distance-based probability of each monitoring point in the potential leakage area according to the position of the monitoring point and the position of the monitoring point to be processed;
determining the component-based probability of the monitoring point according to the concentration information of the component to be processed at the monitoring point in the leakage time period;
determining the leakage probability of the monitoring point according to the distance-based probability and the component-based probability of the monitoring point;
determining leakage points of the to-be-processed component in the leakage time period according to the leakage probability of each monitoring point in the potential leakage area;
the apparatus further comprises:
the sequencing acquisition module is used for sequencing each monitoring point in the potential leakage area according to the corresponding leakage probability to acquire a sequencing result;
the leakage acquisition module is used for acquiring leakage information of a first monitoring point, wherein the leakage information comprises: the identification, leakage components, leakage probability and leakage time of the first monitoring point;
and the storage module is used for storing the leakage information of the first monitoring point into a preset database.
9. The apparatus of claim 8, wherein the apparatus further comprises:
the concentration acquisition module is used for acquiring concentration information of each component to be processed in a historical time period;
the calculating module is used for calculating a concentration average value and a concentration variance value according to the concentration information of the component to be processed in the historical time period;
and the fourth determining module is used for determining a concentration reference value corresponding to the component to be processed according to the concentration average value and the concentration variance value.
10. The apparatus of claim 9, wherein the fourth determination module is configured to,
acquiring a preset variance value coefficient;
obtaining a multiplied numerical value of the variance value coefficient and the concentration variance value;
and adding the multiplied numerical value and the concentration average value to obtain a concentration reference value corresponding to the component to be treated.
11. The apparatus of claim 8, wherein the first determining means is specifically configured to,
judging whether concentration information of each to-be-processed component at each acquisition time point is larger than a concentration reference value corresponding to the to-be-processed component according to each to-be-processed component of each to-be-processed monitoring point;
Acquiring a first acquisition time point at which the corresponding concentration information is larger than the concentration reference value;
and generating a leakage time period of the component to be processed at the monitoring point according to the first acquisition time point.
12. The apparatus of claim 8, wherein the atmospheric inflow data comprises: the atmospheric inflow wind direction and the atmospheric inflow wind speed;
the second determining module is further adapted to,
acquiring a wind direction average value of the wind direction of the air incoming flow in the preset time period, and determining the wind direction average value as the dominant wind direction of the air incoming flow;
and acquiring a wind speed average value of the atmospheric incoming flow wind speed within the preset time period, and determining the wind speed average value as the atmospheric incoming flow dominant wind speed.
13. The apparatus according to claim 8 or 11, wherein the second determining means is specifically configured to,
acquiring dominant wind directions and dominant wind speeds of the monitoring points to be processed in the wind field data;
acquiring a wind direction fluctuation angle of the atmospheric incoming flow of the outdoor area within a preset time period;
taking the monitoring point to be processed as a sector origin, presetting a numerical value as a sector radius, taking the dominant wind direction of the monitoring point to be processed as the direction of a sector center line, taking the wind direction fluctuation angle as a sector central angle, and manufacturing a sector area;
And determining the sector area as a potential leakage area of the monitoring point to be processed.
14. The apparatus of claim 8, wherein the apparatus further comprises:
the judging module is used for judging whether a first time point exists in the preset time period, wherein the atmospheric incoming flow data of the first time point meets preset abnormal conditions, and the preset abnormal conditions comprise at least one of the following conditions: the incoming atmospheric wind direction is larger than a first threshold value, and the incoming atmospheric wind speed is larger than a second threshold value;
and the deleting module is used for deleting the atmospheric incoming flow data at the first time point when the first time point exists.
15. An electronic device, comprising:
a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the outdoor volatile material leakage tracing method according to any one of claims 1-7 when executing the program.
16. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements a method of leak tracing an outdoor volatile material according to any one of claims 1-7.
CN202011240957.5A 2020-11-09 2020-11-09 Outdoor volatile matter leakage tracing method and device Active CN112651186B (en)

Priority Applications (1)

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