Urban industrial calorific value evaluation method, device, equipment and medium under daily scale

Abstract

The invention discloses a daily-scale urban industrial heat value evaluation method, device and equipment and a medium, and the method comprises the steps: obtaining a plurality of industrial heat source regions based on a to-be-evaluated target range in preset time, and setting the preset time as reference time and evaluation time; establishing an evaluation strategy model of the plurality of industrial heat source areas based on the sum of fire point radiation power within the reference time, the sum of fire point radiation power within the evaluation time and the number of days of fire point occurrence of each industrial heat source; and evaluating fire point radiation power FRP values of one or more industrial heat sources in one or more cities under the daily scale according to the evaluation strategy model. According to the method, the daily-scale urban industrial production activity evaluation method is established based on the night thermal abnormal point remote sensing data, the urban industrial heat source enterprises are identified and the evaluation strategy factors of the evaluation strategy model, support is provided for urban industrial production activity monitoring and industrial production emission management, and the limitation on the time scale in a traditional method is made up.

Description

Technical Field

[0001] This invention relates to the field of industrial activity level assessment technology in ecological and environmental monitoring, specifically to a method, apparatus, equipment, and medium for assessing the calorific value of urban industries on a daily scale. Background Technology

[0002] Industrial emissions are a major source of air pollution. The location of industrial heat sources can be effectively indicated by extracting thermal anomaly data detected by satellite remote sensing technology. The radiation power of thermal anomalies falling within the range of industrial heat sources can characterize the relative activity, providing an efficient means to quickly identify key industrial activities.

[0003] However, in practical applications of thermal anomalies to assess industrial production activity levels, the location and number of industrial calorific value points observed on different dates exhibit significant inconsistencies due to meteorological conditions (including but not limited to weather conditions and cloud cover) and the periodic and non-periodic fluctuations of industrial production activities. This inconsistency is reflected not only in the randomness and dynamism of the spatial distribution of thermal anomalies but also in the fluctuations in calorific value intensity (i.e., radiant power) and the daily fluctuations in total calorific value. Therefore, the combined effect of these factors makes direct inter-day comparisons and trend analyses of total industrial calorific value and its specific quantities uncertain, and the comparison results are difficult to objectively reflect changes in industrial production activities. This greatly increases the complexity and challenge of accurately assessing industrial energy efficiency, monitoring environmental pollution, and formulating effective energy conservation and emission reduction strategies.

[0004] Currently, there is a lack of scientific methods for assessing the dynamic changes in the level of industrial activity within urban areas using industrial heat value data on a daily scale. Summary of the Invention

[0005] This invention is proposed based on the aforementioned needs of the prior art. The technical problem to be solved is to provide an innovative method for assessing the calorific value of urban industry on a daily scale, to establish a technical method that can conduct daily comparisons and evaluate the level of industrial activity over a large area, and to provide targeted management for cities with high activity intensity.

[0006] To achieve the above objectives, the present invention provides the following solution:

[0007] In a first aspect, this invention proposes a method for assessing the calorific value of urban industrial waste on a daily scale, the method comprising:

[0008] Multiple industrial heat source areas to be evaluated within a preset time period are obtained, wherein the preset time period includes reference time and evaluation time.

[0009] An evaluation strategy model is established for the multiple industrial heat source regions based on the sum of fire point radiation power within the reference time, the sum of fire point radiation power within the evaluation time, and the number of days each industrial heat source experiences a fire point.

[0010] The fire point radiant power (FRP) values ​​of one or more industrial heat sources in one or more cities on a daily scale are evaluated based on the assessment strategy model.

[0011] Furthermore, the steps for obtaining multiple industrial heat source areas within the target range to be evaluated within a preset time period include: within the target range, detecting thermal anomaly information within a preset time period using the VIIRS sensor on the NPP satellite; performing density analysis on the thermal anomaly information using the DBSCAN clustering mode to set a threshold for the distance radius and the number of thermal anomalies within the distance radius, generating an industrial heat source boundary range with a resolution of 1 km, and generating multiple industrial heat source areas within the target range to be evaluated within a preset time period based on POIs and high-resolution satellite imagery.

[0012] Furthermore, the distance radius is 750m, and the threshold is 10.

[0013] Furthermore, the specific steps for establishing an evaluation strategy model for the multiple industrial heat source regions based on the sum of fire point radiant power within the reference time, the sum of fire point radiant power within the evaluation time, and the number of days each industrial heat source experiences a fire point are as follows:

[0014] Extract the sum of fire point radiation power Xij for each industrial heat source in the reference time, the sum of fire point radiation power xij for the evaluation time, and the number of days c for each industrial heat source to have a fire point.

[0015] The average fire point radiation power of each industrial heat source during the reference time is represented by the ratio of the sum of fire point radiation power Xij to the number of days c, which reflects the general production activity level of the industrial heat source during the reference time. The average ignition radiant power of all industrial heat sources in each city The sums are used to obtain the average urban level Fj during the reference period.

[0016] The evaluation strategy model includes the average fire point radiation power. and the average level Fj of the city;

[0017] Where i represents the i-th industrial heat source and j represents the j-th city.

[0018] Furthermore, the step of evaluating the fire point radiant power (FRP) values ​​of one or more industrial heat sources in one or more cities on a daily scale according to the evaluation strategy model specifically involves: generating an evaluation strategy factor ρ for each city based on the evaluation strategy model. ij ,in,

[0019] The fire point radiant power (FRP) value fj of one or more industrial heat sources in one or more cities on a diurnal scale can be evaluated using the following formula:

[0020] Secondly, this invention proposes a device for assessing the calorific value of urban industries on a daily scale, used to implement the method for assessing the calorific value of urban industries on a daily scale in the first aspect. The device includes:

[0021] The acquisition module is used to acquire multiple industrial heat source areas to be evaluated within a preset time period, wherein the preset time period includes reference time and evaluation time.

[0022] A construction module is used to establish an evaluation strategy model for the multiple industrial heat source regions based on the sum of fire point radiation power within the reference time, the sum of fire point radiation power within the evaluation time, and the number of days each industrial heat source experiences a fire point.

[0023] The assessment module is used to assess the fire point radiant power (FRP) values ​​of one or more industrial heat sources in one or more cities on a daily scale, based on the assessment strategy model.

[0024] Thirdly, the present invention also proposes an electronic device, including a memory and a processor, wherein the memory is coupled to the processor; wherein the memory is used to store program data, and the processor is used to execute the program data to implement the urban industrial calorific value assessment method on a daily scale as described in the first aspect.

[0025] Fourthly, the present invention also proposes a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method for assessing urban industrial calorific value on a daily scale as described in the first aspect.

[0026] This invention proposes a method, apparatus, and medium for assessing the calorific value of urban industrial sources on a daily scale. The method includes: acquiring multiple industrial heat source areas within a target range to be assessed over a preset time period, and setting the preset time period as the reference time and assessment time; establishing an assessment strategy model for the multiple industrial heat source areas based on the sum of fire point radiant power over the reference time period, the sum of fire point radiant power over the assessment time period, and the number of days each industrial heat source experiences a fire point; and assessing the fire point radiant power (FRP) value of one or more industrial heat sources in one or more cities on a daily scale according to the assessment strategy model.

[0027] This invention identifies urban industrial heat source enterprises based on remote sensing data of nighttime thermal anomalies, and establishes a daily-scale evaluation method for urban industrial production activities based on the evaluation strategy factors of the evaluation strategy model. This provides support for the monitoring of urban industrial production activities and the management of industrial emissions, and makes up for the time scale limitations of traditional methods. Attached Figure Description

[0028] Figure 1 This is a flowchart of the method for assessing the calorific value of urban industrial products on a daily scale proposed in this invention.

[0029] Figure 2 This is a schematic diagram illustrating the distribution of industrial heat source regions within a target range in the daily-scale urban industrial calorific value assessment method proposed in this invention.

[0030] Figure 3 This is a schematic diagram of the urban industrial calorific value assessment method based on a single industrial heat source proposed in this invention.

[0031] Figure 4 This is a framework diagram of the urban industrial calorific value assessment device at a daily scale proposed in this invention.

[0032] Figure 5 This is a schematic diagram of the electronic device proposed in this invention. Detailed Implementation

[0033] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0034] like Figure 1 As shown, this invention proposes a method for assessing the calorific value of urban industrial products on a daily scale. Figure 1 A flowchart is shown for a method to assess the calorific value of urban industrial waste on a daily scale. This method includes the following steps:

[0035] Step S100. Obtain multiple industrial heat source areas to be evaluated based on a preset time period, wherein the preset time period includes a reference time and an evaluation time.

[0036] In this embodiment, the method for assessing urban industrial calorific value on a daily scale requires establishing a target range and a preset time assessment process. Specifically, the preset time is configured as a reference time and an assessment time. The reference time is based on nighttime data from the week, month, or year preceding the demonstration period, while the assessment time is the specific time, such as a particular day, for assessing one or more industrial heat source areas to be evaluated.

[0037] In this embodiment, the step of obtaining multiple industrial heat source areas based on the target range to be evaluated within a preset time period specifically includes:

[0038] Step S101. Obtain information on thermal anomalies detected by the VIIRS sensor on the NPP satellite within the demonstration area, including coordinates and radiation intensity information. The time range should cover the nighttime data of the demonstration period (as the evaluation time) and the month preceding the demonstration period (as the reference time).

[0039] Step S102. Use DBSCAN clustering to extract suspected industrial heat source objects. Based on the data analysis of the number of thermal anomalies, set different distance radii (R) of 750m and a threshold (MinPts) of 10 for the number of thermal anomalies within the distance radius during the clustering process. Perform density analysis on the thermal anomalies, remove noise points, and generate the industrial heat source boundary range with a resolution of 1km based on the distribution of core points. Finally, further process the data using POIs and high-resolution satellite images to remove misjudged data, thereby obtaining multiple industrial heat source areas based on the target range to be evaluated within a preset time range.

[0040] This embodiment provides a schematic diagram of the distribution of industrial heat source areas, such as... Figure 2-3 As shown, where, Figure 2 This is a schematic diagram showing the distribution of industrial heat source areas within the target range. Figure 3 This is a schematic diagram of the range of a single industrial heat source. Figure 2 The dots in the diagram represent the distribution of nighttime thermal anomalies in the industrial heat source area within the target range. Figure 3 The dots in the diagram represent the distribution of nighttime thermal anomalies within the range of a single industrial heat source.

[0041] Step S200. Establish an evaluation strategy model for the multiple industrial heat source regions based on the sum of fire point radiation power within the reference time, the sum of fire point radiation power within the evaluation time, and the number of days each industrial heat source experiences a fire point.

[0042] In this embodiment, in order to achieve the assessment of urban industrial calorific value on a daily scale, the data of multiple industrial heat source areas are processed. For each industrial heat source area, the sum of fire point radiation power during the reference time, the sum of fire point radiation power during the assessment time, and the number of days that fire points occur for each industrial heat source are extracted.

[0043] The sum of the fire point radiant power X within the reference time ij The ratio to the number of days c The average fire point radiant power represents the typical production activity level of each industrial heat source during the reference time period. The average ignition radiant power of all industrial heat sources in each city The summation yields the average urban level F over the reference period.j , In this embodiment, the evaluation strategy model is configured to include the average fire point radiation power. and the average level of the city F j , where i represents the i-th industrial heat source and j represents the j-th city.

[0044] Step S300. Evaluate the fire point radiative power (FRP) values ​​of one or more industrial heat sources in one or more cities on a daily scale according to the evaluation strategy model. FRP represents the fire point radiative power.

[0045] In this embodiment, the step of evaluating the fire point radiant power (FRP) values ​​of one or more industrial heat sources in one or more cities on a daily scale according to the evaluation strategy model includes generating evaluation strategy factors and generating evaluation results, specifically including:

[0046] Based on the evaluation strategy model, an evaluation strategy factor ρ is generated for each city. ij ,in,

[0047] The fire point radiant power (FRP) value of one or more industrial heat sources in one or more cities on a daily scale can be evaluated using the following formula. j :

[0048] In this embodiment, if a city has multiple industrial heat sources within a preset time period, it is necessary to comprehensively consider the average urban activity level represented by each industrial heat source, and convert the above formula into: f j =(x 1,j +x 2,j +…+x n,j ) / (ρ 1,j +ρ 2,j +…+ρ n,j This allows for the assessment of the city's industrial heat sources on a specific day or during a given period, representing the level of urban industrial activity during that period. The technical solution in this embodiment can be compared and assessed on a daily basis.

[0049] The table below provides specific implementation examples of the above calculation process. Table 1 illustrates the specific details of generating evaluation strategy factors using the evaluation strategy model:

[0050]

[0051]

[0052]

[0053] Table 2 illustrates the average level of urban activity represented by each industrial heat source when a city has multiple industrial heat sources within a preset time period, as shown below:

[0054]

[0055]

[0056] This embodiment presents a technical solution to the daily-scale assessment of urban industrial calorific value. For example, in the Beijing-Tianjin-Hebei region, 100 hot spots were detected yesterday, and 50 were detected today, but half of the region is cloudy today. This does not necessarily mean that industrial activity is weaker today than yesterday. Using the assessment method of this invention, a reference time period (which could be one year, one month, or even one week) can be selected. The average level of FRP (Functional Heat Ratio) detected by industrial sources with monitored heat anomalies during this period can be calculated. At the urban scale, a city may have multiple industrial heat sources. Based on the selected reference time, the proportion of FRP of each industrial heat source in the total FRP of the city is extracted, which is the assessment strategy factor given in this embodiment. Then, on the monitoring day, the level of urban FRP on that day is inferred by calculating the proportion of industrial sources with monitored heat anomalies. This eliminates the problem that the city may be partially covered by clouds, making it impossible to accurately obtain the overall urban level for that day. Therefore, the technical solution of this embodiment provides an effective method for assessing urban industrial calorific value on a daily scale, and proposes a new and effective technical means to support the management of industrial air pollution emissions.

[0057] This embodiment also proposes a daily-scale urban industrial calorific value assessment device 400, used to implement the aforementioned daily-scale urban industrial calorific value assessment method, such as... Figure 4 As shown, the device 400 includes:

[0058] The acquisition module 401 is used to acquire multiple industrial heat source areas to be evaluated based on a target range within a preset time period, wherein the preset time period includes a reference time and an evaluation time.

[0059] Module 402 is used to establish an evaluation strategy model for the multiple industrial heat source regions based on the sum of fire point radiation power within the reference time, the sum of fire point radiation power within the evaluation time, and the number of days each industrial heat source experiences a fire point.

[0060] The evaluation module 403 is used to evaluate the fire point radiant power (FRP) value of one or more industrial heat sources in one or more cities on a daily scale according to the evaluation strategy model.

[0061] Figure 5 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 5As shown, the electronic device may include a processor 510, a communication interface 520, a memory 530, and a communication bus 540, wherein the processor 510, the communication interface 520, and the memory 530 communicate with each other through the communication bus 540. The processor 510 can call logical instructions in the memory 530 to execute the above-described method for assessing the urban industrial calorific value on a daily scale.

[0062] Furthermore, the logical instructions in the aforementioned memory 530 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, essentially, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0063] This embodiment also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, is implemented to perform the daily-scale urban industrial calorific value assessment methods provided by the methods described above.

[0064] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0065] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0066] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A method for assessing the calorific value of urban industrial products on a daily scale, characterized in that, The method includes: Multiple industrial heat source areas to be evaluated within a preset time period are obtained, wherein the preset time period includes reference time and evaluation time. An evaluation strategy model is established for the multiple industrial heat source regions based on the sum of fire point radiation power within the reference time, the sum of fire point radiation power within the evaluation time, and the number of days each industrial heat source experiences a fire point. The fire point radiant power (FRP) values ​​of one or more industrial heat sources in one or more cities on a daily scale are evaluated based on the assessment strategy model.

2. The method for assessing the calorific value of urban industrial waste at a daily scale according to claim 1, characterized in that, The steps for obtaining multiple industrial heat source regions within a target range to be evaluated within a preset time period include: within the target range, detecting thermal anomaly information within a preset time period using the VIIRS sensor on the NPP satellite; performing density analysis on the thermal anomaly information using the DBSCAN clustering mode to set a threshold for the distance radius and the number of thermal anomalies within the distance radius, generating an industrial heat source boundary range with a resolution of 1 km, and generating multiple industrial heat source regions within the target range to be evaluated within a preset time period based on POIs and high-resolution satellite imagery.

3. The method for assessing the calorific value of urban industrial waste at a daily scale according to claim 2, characterized in that, The distance radius is 750m, and the threshold is 10.

4. The method for assessing the calorific value of urban industrial waste at a daily scale according to claim 1, characterized in that, The specific steps for establishing an evaluation strategy model for the multiple industrial heat source regions based on the sum of fire point radiant power within the reference time, the sum of fire point radiant power within the evaluation time, and the number of days each industrial heat source experiences a fire point are as follows: Extract the sum of the radiant power of the fire point X for each industrial heat source within the reference time in multiple industrial heat source regions. ij The sum of the fire point radiation power x within the assessment time. ij And the number of days c when each industrial heat source ignites; The sum of the fire point radiant power X within the reference time ij The ratio of the number of days c to the average fire point radiant power of each industrial heat source at a typical production activity level during the reference time period is used to represent the average fire point radiant power. The average ignition radiant power of all industrial heat sources in each city The summation yields the average urban level F over the reference period. j , The evaluation strategy model includes the average fire point radiation power. and the average level of the city F j Where i represents the i-th industrial heat source and j represents the j-th city.

5. The method for assessing the calorific value of urban industrial waste at a daily scale according to claim 4, characterized in that, The specific steps for evaluating the fire point radiant power (FRP) values ​​of one or more industrial heat sources in one or more cities on a daily scale according to the evaluation strategy model are as follows: Generate an evaluation strategy factor ρ for each city based on the evaluation strategy model. ij ,in, The fire point radiant power (FRP) value of one or more industrial heat sources in one or more cities on a daily scale is evaluated using the following formula. j :

6. An evaluation apparatus for the daily-scale urban industrial calorific value evaluation method as described in any one of claims 1-5, characterized in that, The device includes: The acquisition module is used to acquire multiple industrial heat source areas to be evaluated within a preset time period, wherein the preset time period includes reference time and evaluation time. A construction module is used to establish an evaluation strategy model for the multiple industrial heat source regions based on the sum of fire point radiation power within the reference time, the sum of fire point radiation power within the evaluation time, and the number of days each industrial heat source experiences a fire point. The assessment module is used to assess the fire point radiant power (FRP) values ​​of one or more industrial heat sources in one or more cities on a daily scale, based on the assessment strategy model.

7. An electronic device, characterized in that, The device includes a memory and a processor, characterized in that the memory is coupled to the processor; wherein the memory is used to store program data, and the processor is used to execute the program data to implement the daily-scale urban industrial calorific value assessment method according to any one of claims 1-5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method for evaluating the calorific value of urban industries on a daily scale as described in any one of claims 1-5.

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