CN115526011A - Layout method and device for VOCs (volatile organic Compounds) leakage monitoring points, electronic equipment and medium - Google Patents
Layout method and device for VOCs (volatile organic Compounds) leakage monitoring points, electronic equipment and medium Download PDFInfo
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Abstract
The application relates to the technical field of leakage monitoring, in particular to a layout method, a device, electronic equipment and a medium of VOCs (volatile organic Compounds) leakage monitoring points, wherein the method comprises the steps of acquiring candidate point coordinates of which monitoring points can be set in a park; extracting a preset number of candidate point coordinates from the candidate point coordinates according to a random sampling method to serve as monitoring points, and generating an initial monitoring point layout scheme; optimizing an initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system and a pre-established monitoring point location layout optimization platform until a monitoring point location layout scheme with optimal scheme evaluation is obtained; the monitoring point location layout evaluation index system is used for quantitatively evaluating a monitoring point location layout scheme, the monitoring point location layout optimization platform is used for reselecting a preset number of candidate point location coordinates from the candidate point location coordinates to serve as monitoring point locations to form an optimized monitoring point location layout scheme, and the sensor with limited number can be reasonably arranged in a garden.
Description
Technical Field
The application relates to the technical field of leakage monitoring, in particular to a layout method and device of VOCs leakage monitoring points, electronic equipment and a medium.
Background
The unorganized leakage of Volatile Organic Compounds (VOCs) in chemical industrial parks can lead to material loss, environmental pollution and even huge casualty damage accidents. In the related technology, a method for monitoring the unorganized leakage of VOCs in a chemical industry park is adopted, and a periodic detection means based on LDAR is adopted, but the method has high labor cost and no real-time property; there are also techniques that use distributed VOCs leak monitoring inside the campus.
The distributed VOCs leakage monitoring technology has wide application prospect due to the capability of online real-time monitoring. However, since the non-tissue leakage of VOCs is a trace leakage, the cost of the corresponding sensors is high, and the number of potential leakage points is large, it is very critical how to reasonably arrange the sensors with limited number to monitor the maximum number of leakage points in the chemical industry park.
Disclosure of Invention
In order to carry out reasonable layout on sensors with limited quantity in a park and monitor leakage points by the maximum quantity, the application provides a layout method and device of VOCs leakage monitoring points, electronic equipment and a medium.
In a first aspect of the present application, a method for laying out VOCs leakage monitoring points is provided, the method comprising: acquiring candidate point location coordinates of monitoring points which can be set in a park; extracting a preset number of candidate point coordinates from the candidate point coordinates according to a random sampling method to serve as monitoring points, and generating an initial monitoring point layout scheme; optimizing the initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system and a pre-established monitoring point location layout optimization platform until a monitoring point location layout scheme with optimal scheme evaluation is obtained; the monitoring point location layout evaluation index system is used for carrying out quantitative evaluation on a monitoring point location layout scheme, and the monitoring point location layout optimization platform is used for reselecting a preset number of candidate point location coordinates from the candidate point location coordinates to serve as monitoring point locations to form an optimized monitoring point location layout scheme.
By adopting the technical scheme, the candidate point location coordinates in the park are obtained, the position coordinates of the monitoring points can be set in the candidate point location coordinate park, firstly, a random sampling method is adopted to extract a preset number of candidate point location coordinates from the candidate point location coordinates to serve as the monitoring points, an initial monitoring point location layout scheme is generated, then, the monitoring point location layout scheme and a preset monitoring point location layout optimization platform are continuously optimized to obtain the monitoring point location layout scheme with the optimal scheme based on a preset monitoring point location layout evaluation index system, through the mode of continuously evaluating and optimizing the monitoring point location layout scheme, the preset number of monitoring points set in the park can be utilized to the maximum, the maximum number of leakage points are monitored, and the cost for arranging the monitoring points can also be reduced.
Preferably, optimizing the initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system and a pre-established monitoring point location layout optimization platform until a monitoring point location layout scheme with optimal scheme evaluation is obtained includes:
carrying out quantitative evaluation on the initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system to obtain first scheme evaluation;
the monitoring point location layout optimization platform reselects a preset number of candidate point location coordinates from the candidate point location coordinates according to the first scheme evaluation to serve as monitoring point locations, and obtains an optimized monitoring point location layout scheme;
and the monitoring point location layout optimization platform carries out monitoring point location optimization on the second scheme evaluation of the monitoring point location layout scheme after optimization based on the monitoring point location evaluation index system until a monitoring point location layout scheme with optimal scheme evaluation is obtained.
Preferably, the performing quantitative evaluation on the initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system to obtain a first scheme evaluation includes:
determining leakage points which can be monitored by the monitoring points in the initial monitoring point location layout scheme based on a preset leakage source machine account to obtain the dispersion degree of the initial monitoring point location layout scheme;
determining the correlation between the monitoring point locations and the leakage point locations in the initial monitoring point location layout scheme according to the prevailing wind direction of the park and the preset leakage source ledger;
and integrating the dispersity and the relevance to obtain the first scheme evaluation.
Preferably, the obtaining candidate point coordinates at which the monitoring point can be set in the campus includes:
virtually partitioning the park based on a preset partitioning rule to obtain a candidate area, wherein the candidate area is an area in the park, and monitoring points can be set in the area;
and gridding the candidate area according to a preset resolution to obtain coordinates of all candidate points in the candidate area.
Preferably, the monitoring point location layout optimization platform is pre-established based on a multi-objective optimization algorithm NSGA-II.
In a second aspect of the present application, a device for locating leakage monitoring points of VOCs is provided, the device comprising: the acquisition module is used for acquiring candidate point location coordinates of monitoring points which can be set in the park; the sampling module is used for extracting a preset number of candidate point coordinates from the candidate point coordinates according to a random sampling method to serve as monitoring points and generating an initial monitoring point layout scheme; the optimization module is used for optimizing the initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system and a pre-established monitoring point location layout optimization platform until a monitoring point location layout scheme with optimal scheme evaluation is obtained; the monitoring point location layout evaluation index system is used for carrying out quantitative evaluation on a monitoring point location layout scheme, and the monitoring point location layout optimization platform is used for reselecting a preset number of candidate point location coordinates from the candidate point location coordinates to serve as monitoring point locations to form an optimized monitoring point location layout scheme.
Preferably, the optimization module is specifically configured to:
carrying out quantitative evaluation on the initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system to obtain first scheme evaluation;
the monitoring point location layout optimization platform reselects a preset number of candidate point location coordinates from the candidate point location coordinates according to the first scheme evaluation to serve as monitoring point locations, and obtains an optimized monitoring point location layout scheme;
and the monitoring point location layout optimization platform carries out monitoring point location optimization on the second scheme evaluation of the monitoring point location layout scheme after optimization based on the monitoring point location evaluation index system until a monitoring point location layout scheme with optimal scheme evaluation is obtained.
Preferably, the obtaining module is specifically configured to:
performing virtual partition on the campus based on a preset partition rule to obtain a candidate area, wherein the candidate area is an area in the campus, and monitoring points can be set in the area;
and gridding the candidate area according to a preset resolution ratio to obtain coordinates of all candidate points in the candidate area.
In a third aspect of the present application, an electronic device is presented, comprising a memory having stored thereon a computer program and a processor implementing the method of any of the first aspects when executing the program.
In a fourth aspect of the present application, a computer-readable storage medium is also presented, on which a computer program is stored, which program, when being executed by a processor, carries out the method according to any one of the first aspect.
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The above and other features, advantages and aspects of embodiments of the present application will become more apparent upon consideration of the following detailed description, taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:
fig. 1 shows a block diagram of an electronic device according to an embodiment of the present application.
Fig. 2 is a flowchart illustrating a layout method of VOCs leakage monitoring points in the embodiment of the present application.
FIG. 3 shows a schematic representation of the dispersion in one embodiment.
FIG. 4 is a diagram that illustrates a representation of associations in one embodiment.
Fig. 5 is a schematic block diagram of an apparatus for arranging VOCs leakage monitoring points in the embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The unorganized leakage of Volatile Organic Compounds (VOCs) in chemical industrial parks can cause material loss, environmental pollution and even huge casualty damage accidents. In the related technology, a method for monitoring the unorganized leakage of VOCs in a chemical industry park is adopted, and a periodic detection means based on LDAR is adopted, but the method has high labor cost and no real-time property; there are also techniques that use distributed VOCs leakage monitoring inside the campus.
The distributed VOCs leakage monitoring technology has wide application prospect due to the capability of online real-time monitoring. However, since the unorganized leakage of VOCs belongs to trace leakage, the cost of the corresponding sensors is high, and the number of potential leakage points is large, it is very critical how to reasonably arrange the sensors with limited number in the chemical industry park to monitor the maximum number of leakage points. In order to solve the problem, the application provides a layout method, a device, electronic equipment and a medium of the VOCs leakage monitoring points by using hydrodynamics and a genetic algorithm.
Next, a system architecture according to an embodiment of the present application will be described. It should be noted that the system architecture and the service scenario described in the embodiment of the present application are for more clearly illustrating the technical solution of the embodiment of the present application, and do not constitute a limitation to the technical solution provided in the embodiment of the present application, and as a person having ordinary skill in the art knows that along with the evolution of the network architecture and the appearance of a new service scenario, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.
Fig. 1 shows a block diagram of an electronic device according to an embodiment of the present application.
Referring to fig. 1, an electronic device 100 includes a processor 101 and a memory 103. Wherein the processor 101 is coupled to the memory 103, such as via a bus 102. Optionally, the electronic device 100 may also include a transceiver 104. It should be noted that the transceiver 104 is not limited to one in practical application, and the structure of the electronic device 100 is not limited to the embodiment of the present application.
The Processor 101 may be a CPU (Central Processing Unit), a general-purpose Processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other Programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or execute the various illustrative logical blocks, modules, and circuits described in connection with the disclosure herein. The processor 101 may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors.
The Memory 103 may be a ROM (Read Only Memory) or other type of static storage device that can store static information and instructions, a RAM (Random Access Memory) or other type of dynamic storage device that can store information and instructions, an EEPROM (Electrically Erasable Programmable Read Only Memory), a CD-ROM (Compact Disc Read Only Memory) or other optical Disc storage, optical Disc storage (including Compact Disc, laser Disc, optical Disc, digital versatile Disc, blu-ray Disc, etc.), a magnetic Disc storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to these.
The memory 103 is used for storing application program codes for executing the scheme of the application, and the execution is controlled by the processor 101. The processor 101 is configured to execute application program code stored in the memory 103 to implement the layout method of the leakage monitoring points of the VOCs.
Among them, electronic devices include but are not limited to: mobile terminals such as mobile phones, notebook computers, digital broadcast receivers, PDAs (personal digital assistants), PADs (tablet computers), and the like, and fixed terminals such as digital TVs, desktop computers, and the like. It should be noted that the electronic device shown in fig. 1 is only an example, and should not bring any limitation to the functions and the application scope of the embodiments of the present application.
Fig. 2 is a flowchart illustrating a layout method of VOCs leakage monitoring points in an embodiment of the present application, and referring to fig. 2, the method includes:
step S201, candidate point coordinates of monitoring points which can be set in the garden are obtained.
In some embodiments, the candidate point coordinates are obtained by:
a1, virtually partitioning a park based on a preset partitioning rule to obtain a candidate area, wherein the candidate area is an area in the park where monitoring points can be arranged;
the method comprises the steps of firstly, carrying out preliminary virtual partitioning on a garden by monitoring, wherein a preset partitioning rule can be designed according to building characteristics in the garden, and can also be partitioned according to indoor and outdoor conditions, the principle of the preset partitioning rule is that leakage of a leakage source cannot affect each other, after the preliminary virtual partitioning is finished, areas where sensors cannot be placed to set monitoring point locations, such as a pool, a wall, a channel and the like, are checked, after the areas where the monitoring point locations cannot be set are checked, the areas are removed from each partition after the preliminary virtual partitioning, the virtual partitioning is finished, after the areas where the monitoring point locations cannot be set are removed, the remaining areas are areas where the monitoring point locations can be theoretically set, and the areas are used as candidate areas in the embodiment of the application.
And step A2, performing gridding processing on the candidate area according to a preset resolution ratio to obtain coordinates of all candidate points in the candidate area.
And gridding the candidate area in each partition based on a preset resolution, namely, carrying out grid division according to the preset resolution, wherein grid intersection points in the candidate area are candidate point positions, and all candidate point position coordinates can be obtained based on a preset coordinate system.
It should be noted that, before monitoring the point location layout, the method and the system can also check all potential leakage points in the park, combine the leakage points close to each other into a leakage source according to actual conditions, number the determined leakage source finally, establish the leakage source ledger and store the leakage source ledger for reference use in the subsequent monitoring of the point location layout.
Step S202, a preset number of candidate point coordinates are extracted from the candidate point coordinates according to a random sampling method to serve as monitoring points, and an initial monitoring point layout scheme is generated.
In this application embodiment, at first need according to the regional size of garden and let out the quantity that how many of source determine the monitoring point location that needs set up, the quantity of predetermineeing in this application embodiment promptly, after determining the quantity of predetermineeing, according to letting out source ledger, carry out the distribution of monitoring point location quantity according to the proportion of the source of leaking of every subregion.
After the preset number is determined and the number of monitoring point locations to be set in each partition in the campus is determined, a random sampling method is adopted, and candidate point location coordinates with a corresponding number are selected from the candidate point location coordinates determined in step S201 to serve as monitoring point locations, so that an initial monitoring point location layout scheme is formed.
Step S203, based on the pre-established monitoring point location layout evaluation index system and the pre-established monitoring point location layout optimization platform, optimizing the initial monitoring point location layout scheme until the monitoring point location layout scheme with the optimal scheme evaluation is obtained.
The monitoring point location layout evaluation index system is used for carrying out quantitative evaluation on the monitoring point location layout scheme, and the monitoring point location layout optimization platform is used for reselecting a preset number of candidate point location coordinates from the candidate point location coordinates to serve as monitoring point locations to form an optimized monitoring point location layout scheme.
In the embodiment of the application, the monitoring point location layout evaluation index system and the monitoring point location layout optimization platform are pre-established.
The monitoring point location layout evaluation index system is used for quantitatively evaluating monitoring points serving as a layout scheme, the quantitative evaluation mainly comprises two indexes of dispersion degree and relevance, and specifically, referring to fig. 3, the dispersion degree has the meaning as follows: the monitoring point location can only monitor the leakage source within a certain distance generally, the leakage source beyond the certain distance cannot be identified, therefore, the leakage source set within a certain range of the monitoring point location is counted, the set is the leakage source which can be monitored by the monitoring point location, the leakage source set which can be monitored by all the monitoring point locations is merged, finally, the proportion of all the leakage sources which can be monitored to the total leakage source becomes the dispersity of the current monitoring point location layout scheme, therefore, under the condition that the leakage source layout is the same, the scattered monitoring point location is more reasonable than the concentrated monitoring point location layout in fig. 3, the monitoring range of the leakage source is wider, wherein the square in fig. 3 represents the leakage source, and the star represents the monitoring point location; referring to fig. 4, the meaning of relevance is: wind power is the main power of unorganized leakage diffusion of VOCs occurring in outdoor environment, namely VOCs generally diffuse along the downwind direction of incoming wind, if a monitoring point is located in the upwind direction of a certain leakage source, the monitoring capability of the leakage source is reduced compared with the arrangement of the downwind direction, from this angle, the application provides an index of relevance to quantify the relevance of the monitoring point under the influence of the incoming wind and the leakage source, in an implementation mode, a Gaussian plume model can be adopted to carry out simulation tests on the diffusion working condition of each leakage source, concentration corresponding data of the monitoring point under each working condition are extracted, a concentration response threshold value is set, if the concentration of the monitoring point exceeds the response threshold value, the main leakage source and the monitoring point have diffusion relevance, a set formed by the leakage sources having relevance under all leakage working conditions is called as the relevance index under the current arrangement, for example, two monitoring point layouts represented in FIG. 4, the number of the monitoring points arranged on the left side is more than that of the monitoring points arranged on the right side.
It should be noted that, because the natural wind direction of the campus varies all the year round, the present application needs to perform statistical analysis on the historical meteorological data of the campus location to identify the dominant wind direction with reference to the wind direction with higher frequency of occurrence all the year round.
In the embodiment of the application, a monitoring point location layout optimization platform is pre-established based on a multi-objective optimization algorithm NSGA-II, the NSGA-II is one of multi-objective genetic algorithms, the complexity of a non-inferior sorting genetic algorithm is reduced, the method has the advantages of high running speed and good convergence of solution sets, and particularly, a rapid non-dominated sorting algorithm is provided, so that on one hand, the complexity of calculation is reduced, on the other hand, a parent population and a child population are merged, so that a next generation population is selected from a double space, and all the most excellent individuals are reserved; an elite strategy is introduced to ensure that certain excellent population individuals cannot be discarded in the evolution process, so that the precision of an optimization result is improved; by adopting the crowdedness and crowdedness comparison operator, the defect that the sharing parameters need to be manually specified in the NSGA is overcome, and the crowdedness and crowdedness comparison operator is used as a comparison standard among individuals in the population, so that the individuals in the quasi-Pareto domain can be uniformly expanded to the whole Pareto domain, and the diversity of the population is ensured.
In some application embodiments, an initial monitoring point location layout scheme is optimized based on a pre-established monitoring point location layout evaluation index system and a pre-established monitoring point location layout optimization platform, until a monitoring point location layout scheme with optimal scheme evaluation is obtained, which specifically includes the following processes:
and B2, carrying out quantitative evaluation on the initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system to obtain first scheme evaluation.
In some application embodiments, the process of quantitatively evaluating the initial monitoring point location layout scheme by the monitoring point location layout evaluation index system is as follows:
determining leakage points which can be monitored by the monitoring points in the initial monitoring point location layout scheme based on a preset leakage source machine account to obtain the dispersion degree of the initial monitoring point location layout scheme;
determining the relevance of the monitoring point positions and the leakage point positions in the initial monitoring point position layout scheme according to the prevailing wind direction of the park and a preset leakage source ledger;
and integrating the dispersity and the relevance to obtain a first scheme evaluation.
The quantitative evaluation of the monitoring point location layout evaluation index system comprises two indexes of dispersion degree and relevance, wherein the dispersion degree is based on a preset leakage source account, firstly, leakage sources which can be monitored by each monitoring point location are determined, then, a union set of the leakage sources which can be monitored by all the monitoring point locations is obtained, the proportion of the number of the leakage sources to the total number of the leakage sources in a park is obtained and concentrated, and the dispersion degree of an initial monitoring point location layout scheme can be obtained. And then, the relevance between the monitoring point and a leakage source in the park in the initial monitoring point layout scheme is worked out based on a Gaussian plume model, and the two indexes of the dispersion degree and the relevance are the first scheme evaluation of the initial monitoring point layout scheme.
And step B3, the monitoring point location layout optimization platform reselects a preset number of candidate point location coordinates from the candidate point location coordinates according to the first scheme evaluation to serve as monitoring point locations, and the optimized monitoring point location layout scheme is obtained.
Based on the dispersion degree and the relevance in the first scheme evaluation, the monitoring point location layout optimization platform optimizes the monitoring point locations, and determines the optimized monitoring point locations again in the candidate point locations to obtain an optimized monitoring point location layout scheme.
And step B3, the monitoring point location layout optimization platform carries out monitoring point location optimization on the second scheme evaluation of the monitoring point location layout scheme after optimization based on the monitoring point location evaluation index system until the monitoring point location layout scheme with the optimal scheme evaluation is obtained.
And B3, optimizing the monitoring point location by the monitoring point location layout optimizing platform and quantitatively evaluating the monitoring point location layout scheme after optimizing each time by the monitoring point location evaluation index system, namely a cyclic reciprocating pair process, completing optimization of the monitoring point location layout scheme in the embodiment of the application until the quantitative evaluation of the monitoring point location evaluation index system on the monitoring point location layout scheme is optimal dispersion degree and optimal relevance, obtaining the optimal monitoring point location layout scheme in the embodiment of the application, setting the monitoring point location in the garden based on the monitoring point location layout scheme, and realizing the maximum monitoring of the leakage source in the garden.
It should be noted that for simplicity of description, the above-mentioned method embodiments are described as a series of acts, but those skilled in the art should understand that the present disclosure is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present disclosure. Further, those skilled in the art should also appreciate that the embodiments described in the specification are exemplary embodiments and that acts and modules referred to are not necessarily required by the disclosure.
The above is a description of embodiments of the method, and the embodiments of the apparatus are further described below.
Fig. 5 is a schematic block diagram of an apparatus for locating VOCs leakage monitoring points according to an embodiment of the present invention, as shown in fig. 5, the apparatus including:
an obtaining module 501, configured to obtain candidate point coordinates where a monitoring point can be set in the campus.
The sampling module 502 is configured to extract a preset number of candidate point coordinates from the candidate point coordinates according to a random sampling method to serve as monitoring points, and generate an initial monitoring point layout scheme.
The optimizing module 503 is configured to optimize an initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system and a pre-established monitoring point location layout optimizing platform, until a monitoring point location layout scheme with optimal scheme evaluation is obtained.
The monitoring point location layout evaluation index system is used for carrying out quantitative evaluation on the monitoring point location layout scheme, and the monitoring point location layout optimization platform is used for reselecting a preset number of candidate point location coordinates from the candidate point location coordinates as monitoring point locations to form an optimized monitoring point location layout scheme.
In some application embodiments, the optimization module is specifically configured to:
carrying out quantitative evaluation on the initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system to obtain first scheme evaluation;
the monitoring point location layout optimization platform reselects a preset number of candidate point location coordinates from the candidate point location coordinates according to the first scheme evaluation to serve as monitoring point locations, and obtains an optimized monitoring point location layout scheme;
and the monitoring point location layout optimization platform carries out monitoring point location optimization on the second scheme evaluation of the monitoring point location layout scheme after optimization based on the monitoring point location evaluation index system until a monitoring point location layout scheme with optimal scheme evaluation is obtained.
In some application embodiments, the obtaining module is specifically configured to:
virtually partitioning the park based on a preset partitioning rule to obtain a candidate area, wherein the candidate area is an area in the park, and monitoring points can be set in the area;
and gridding the candidate area according to the preset resolution to obtain all candidate point coordinates in the candidate area.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the described module may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
The embodiment of the present application provides a computer readable storage medium, on which a computer program is stored, and when the computer program runs on a computer, the computer is enabled to execute the corresponding content in the foregoing method embodiment.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of execution is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (10)
1. A layout method of VOCs leakage monitoring points is characterized by comprising the following steps:
acquiring candidate point location coordinates of monitoring points which can be set in a park;
extracting a preset number of candidate point coordinates from the candidate point coordinates according to a random sampling method to serve as monitoring points, and generating an initial monitoring point layout scheme;
optimizing the initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system and a pre-established monitoring point location layout optimization platform until a monitoring point location layout scheme with optimal scheme evaluation is obtained;
the monitoring point location layout evaluation index system is used for carrying out quantitative evaluation on a monitoring point location layout scheme, and the monitoring point location layout optimization platform is used for reselecting a preset number of candidate point location coordinates from the candidate point location coordinates to serve as monitoring point locations to form an optimized monitoring point location layout scheme.
2. The method according to claim 1, wherein optimizing the initial monitoring point location layout scheme to obtain a monitoring point location layout scheme with an optimal scheme evaluation based on a pre-established monitoring point location layout evaluation index system and a pre-established monitoring point location layout optimization platform comprises:
carrying out quantitative evaluation on the initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system to obtain first scheme evaluation;
the monitoring point location layout optimization platform reselects a preset number of candidate point location coordinates from the candidate point location coordinates according to the first scheme evaluation to serve as monitoring point locations, and obtains an optimized monitoring point location layout scheme;
and the monitoring point location layout optimization platform carries out monitoring point location optimization on the second scheme evaluation of the optimized monitoring point location layout scheme based on the monitoring point location evaluation index system until a monitoring point location layout scheme with optimal scheme evaluation is obtained.
3. The method according to claim 2, wherein the quantitative evaluation of the initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system to obtain a first scheme evaluation comprises:
determining leakage points which can be monitored by the monitoring points in the initial monitoring point location layout scheme based on a preset leakage source machine account to obtain the dispersion degree of the initial monitoring point location layout scheme;
determining the correlation between the monitoring point locations and the leakage point locations in the initial monitoring point location layout scheme according to the prevailing wind direction of the park and the preset leakage source ledger;
and integrating the dispersity and the relevance to obtain the first scheme evaluation.
4. The method of claim 1, wherein obtaining candidate point coordinates for which monitoring points can be set in the campus, comprises:
performing virtual partition on the campus based on a preset partition rule to obtain a candidate area, wherein the candidate area is an area in the campus, and monitoring points can be set in the area;
and gridding the candidate area according to a preset resolution ratio to obtain coordinates of all candidate points in the candidate area.
5. The method according to claim 1, wherein the optimization platform for monitoring point placement is pre-established based on a multi-objective optimization algorithm NSGA-II.
6. A layout device of VOCs leakage monitoring points is characterized by comprising:
the acquisition module is used for acquiring candidate point location coordinates of monitoring points which can be set in the park;
the sampling module is used for extracting a preset number of candidate point coordinates from the candidate point coordinates according to a random sampling method to serve as monitoring points, and generating an initial monitoring point layout scheme;
the optimization module is used for optimizing the initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system and a pre-established monitoring point location layout optimization platform until a monitoring point location layout scheme with optimal scheme evaluation is obtained;
the monitoring point location layout evaluation index system is used for carrying out quantitative evaluation on a monitoring point location layout scheme, and the monitoring point location layout optimization platform is used for reselecting a preset number of candidate point location coordinates from the candidate point location coordinates to serve as monitoring point locations to form an optimized monitoring point location layout scheme.
7. The apparatus according to claim 6, wherein the optimization module is specifically configured to:
carrying out quantitative evaluation on the initial monitoring point location layout scheme based on a pre-established monitoring point location layout evaluation index system to obtain first scheme evaluation;
the monitoring point location layout optimization platform re-selects a preset number of candidate point location coordinates from the candidate point location coordinates as monitoring point locations according to the first scheme evaluation to obtain an optimized monitoring point location layout scheme;
and the monitoring point location layout optimization platform carries out monitoring point location optimization on the second scheme evaluation of the monitoring point location layout scheme after optimization based on the monitoring point location evaluation index system until a monitoring point location layout scheme with optimal scheme evaluation is obtained.
8. The method according to claim 6, wherein the obtaining module is specifically configured to:
virtually partitioning the park based on a preset partitioning rule to obtain a candidate area, wherein the candidate area is an area in the park, and monitoring points can be set in the area;
and gridding the candidate area according to a preset resolution to obtain coordinates of all candidate points in the candidate area.
9. An electronic device comprising a memory and a processor, the memory having stored thereon a computer program, wherein the processor when executing the program implements the method of any one of claims 1 to 5.
10. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method according to any one of claims 1 to 5.
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