Control method and control device for freezing rain prevention and control operation and storage medium

Abstract

The invention discloses a control method and device for freezing rain prevention and control operation and a storage medium, and belongs to the technical field of power grid disaster prevention. The control method comprises the steps that under the condition that a thermal inversion layer exists in a target atmosphere area, a plurality of warm area target meteorological parameters of a thermal inversion layer warm area and a plurality of cold area target meteorological parameters of a thermal inversion layer cold area in the thermal inversion layer in the target atmosphere area are acquired; according to the multiple warm area target meteorological parameters and the multiple cold area target meteorological parameters, determining an early warning index corresponding to a thermal inversion layer; and under the conditions that the early warning index is greater than or equal to a preset early warning index threshold value, the plurality of warm region target meteorological parameters meet a preset warm region meteorological condition and the plurality of cold region target meteorological parameters meet a preset cold region meteorological condition, performing freezing rain prevention and control operation on the thermal inversion layer warm region and the thermal inversion layer cold region. The problem that in the prior art, the supercooled water drop phase change efficiency is low can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of power grid disaster prevention, and in particular to a control method, a control device and a storage medium for freezing rain prevention operations. Background Art

[0002] Freezing rain disasters are caused by a chain of phase transitions triggered by a unique inversion layer structure in the atmosphere. Specifically, solid precipitation particles at high altitudes melt into liquid water droplets as they pass through the intermediate warm layer, then form supercooled raindrops upon entering the cold layer near the ground. Global warming has led to the continued thickening and rising temperatures of the warm zone of the inversion layer, significantly shortening the phase transition window for raindrops within the cold layer and enhancing the stability of supercooled water droplets. This makes it extremely easy for supercooled water droplets to form dense ice layers on surface objects, posing a threat to icing and damaging critical infrastructure such as power transmission lines.

[0003] To address this issue, existing technologies typically employ catalytic strategies for cold layer intervention, such as cold cloud catalytic strategies. These strategies can induce supercooled water droplets within the cold layer to undergo a phase transition, freezing into ice crystals and reducing the concentration of supercooled water droplets, thereby reducing the probability of freezing rain. However, global warming has significantly shortened the phase transition window for supercooled water droplets within the cold layer. This shortened window makes it difficult for supercooled water droplets to undergo a phase transition within the cold layer in a short period of time, resulting in low phase transition efficiency and an increased threat of icing. Consequently, existing technologies suffer from low phase transition efficiency for supercooled water droplets. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide a control method, a control device and a storage medium for freezing rain prevention operations, so as to solve the problem of low phase change efficiency of supercooled water droplets existing in the prior art.

[0005] In order to achieve the above-mentioned objectives, the present application provides, in a first aspect, a control method for freezing rain prevention operations, the control method comprising: When there is an inversion layer in the target atmospheric region, obtaining a plurality of warm-area target meteorological parameters of a warm area of ​​the inversion layer and a plurality of cold-area target meteorological parameters of a cold area of ​​the inversion layer in the target atmospheric region; Determine the warning index corresponding to the inversion layer based on multiple warm zone target meteorological parameters and multiple cold zone target meteorological parameters; When the warning index is greater than or equal to the preset warning index threshold, multiple warm zone target meteorological parameters meet the preset warm zone meteorological conditions, and multiple cold zone target meteorological parameters meet the preset cold zone meteorological conditions, freezing rain prevention and control operations are carried out in the warm zone and cold zone of the inversion layer.

[0006] In an embodiment of the present application, a warning index corresponding to the inversion layer is determined based on multiple warm zone target meteorological parameters and multiple cold zone target meteorological parameters, including: obtaining a warm zone sub-index based on each warm zone target meteorological parameter and a corresponding preset warm zone target meteorological parameter baseline value, wherein the warm zone sub-index is positively correlated with each warm zone target meteorological parameter; obtaining a cold zone sub-index based on each cold zone target meteorological parameter and a corresponding preset cold zone target meteorological parameter baseline value, wherein the cold zone sub-index is positively correlated with each cold zone target meteorological parameter; obtaining a warning index corresponding to the inversion layer based on the warm zone sub-index and the cold zone sub-index.

[0007] In an embodiment of the present application, a warm zone sub-index is obtained according to each warm zone target meteorological parameter and the corresponding preset warm zone target meteorological parameter baseline value, including: determining the ratio of each warm zone target meteorological parameter to the corresponding warm zone target meteorological parameter baseline value to obtain multiple warm zone target meteorological parameter ratios; determining the product of each warm zone target meteorological parameter ratio and the corresponding preset warm zone target meteorological parameter weight coefficient to obtain multiple warm zone target meteorological parameter items; determining the sum of multiple warm zone target meteorological parameter items to obtain a warm zone sub-index; a cold zone sub-index is obtained according to each cold zone target meteorological parameter and the corresponding preset cold zone target meteorological parameter baseline value, including: determining the ratio of each cold zone target meteorological parameter to the corresponding cold zone target meteorological parameter baseline value to obtain multiple cold zone target meteorological parameter ratios; determining the product of each cold zone target meteorological parameter ratio and the corresponding preset cold zone target meteorological parameter weight coefficient to obtain multiple cold zone target meteorological parameter items; determining the sum of multiple cold zone target meteorological parameter items to obtain a cold zone sub-index.

[0008] In an embodiment of the present application, a warning index corresponding to the inversion layer is obtained based on the warm area sub-index and the cold area sub-index, including: determining the sum of the products of the warm area sub-index and the cold area sub-index and the corresponding preset area weight coefficient to obtain the warning index corresponding to the inversion layer.

[0009] In an embodiment of the present application, multiple warm zone target meteorological parameters include the warm zone maximum temperature, the warm zone maximum humidity, the warm zone thickness and the warm zone liquid water content, and the preset warm zone meteorological conditions are that the warm zone maximum temperature is greater than the preset warm zone maximum temperature threshold, the warm zone maximum humidity is greater than or equal to the preset warm zone maximum humidity threshold, the warm zone thickness is greater than or equal to the preset warm zone thickness threshold, and the warm zone liquid water content is greater than or equal to the preset warm zone liquid water content threshold; multiple cold zone target meteorological parameters include the cold zone minimum temperature, the cold zone maximum humidity, the cold zone thickness and the cold zone liquid water content, and the preset cold zone meteorological conditions are that the cold zone minimum temperature is less than the preset cold zone minimum temperature threshold, the cold zone maximum humidity is greater than or equal to the preset cold zone maximum humidity threshold, the cold zone thickness is greater than or equal to the preset cold zone thickness threshold, and the cold zone liquid water content is greater than or equal to the preset cold zone liquid water content threshold.

[0010] In an embodiment of the present application, the control method also includes: performing freezing rain prevention operations in the warm zone of the inversion layer when the warning index is less than a preset warning index threshold, the warm zone sub-index is greater than or equal to the preset warm zone index threshold, the cold zone sub-index is less than the preset cold zone index threshold, and multiple warm zone target meteorological parameters meet the preset warm zone meteorological conditions.

[0011] In an embodiment of the present application, the control method also includes: performing freezing rain prevention and control operations in the cold zone of the inversion layer when the warning index is less than the corresponding preset warning index threshold, the warm zone sub-index is less than the preset warm zone index threshold, the cold zone sub-index is greater than or equal to the preset cold zone index threshold, and multiple cold zone target meteorological parameters meet the preset cold zone meteorological conditions.

[0012] In an embodiment of the present application, freezing rain prevention operations are performed on the cold zone of the inversion layer, including: placing a refrigeration catalyst into the cold zone of the inversion layer until the temperature of the cold zone of the inversion layer reaches a preset cold zone temperature threshold; determining a target cold zone volume based on the thickness of the cold zone and a preset area; determining a target ice nucleation catalyst dosage based on the target cold zone volume, a preset ice crystal concentration, and a preset ice nucleation rate; and placing an ice nucleation catalyst with a target ice nucleation catalyst dosage into the cold zone of the inversion layer.

[0013] A second aspect of the present application provides a control device for freezing rain prevention operations, comprising: An acquisition module is configured to acquire, when an inversion layer exists in the target atmospheric region, a plurality of warm-area target meteorological parameters of a warm area of ​​the inversion layer and a plurality of cold-area target meteorological parameters of a cold area of ​​the inversion layer in the target atmospheric region; An early warning index determination module is used to determine an early warning index corresponding to the inversion layer based on a plurality of warm zone target meteorological parameters and a plurality of cold zone target meteorological parameters; The control module is used to carry out freezing rain prevention operations in the warm zone of the inversion layer and the cold zone of the inversion layer when the warning index is greater than or equal to the preset warning index threshold, multiple warm zone target meteorological parameters meet the preset warm zone meteorological conditions, and multiple cold zone target meteorological parameters meet the preset cold zone meteorological conditions.

[0014] In an embodiment of the present application, the warning index determination module is also used to: obtain a warm zone sub-index based on each warm zone target meteorological parameter and a corresponding preset warm zone target meteorological parameter baseline value, wherein the warm zone sub-index is positively correlated with each warm zone target meteorological parameter; obtain a cold zone sub-index based on each cold zone target meteorological parameter and a corresponding preset cold zone target meteorological parameter baseline value, wherein the cold zone sub-index is positively correlated with each cold zone target meteorological parameter; obtain a warning index corresponding to the inversion layer based on the warm zone sub-index and the cold zone sub-index.

[0015] In an embodiment of the present application, the early warning index determination module is also used to: determine the ratio of each warm zone target meteorological parameter to the corresponding warm zone target meteorological parameter baseline value to obtain multiple warm zone target meteorological parameter ratios; determine the product of each warm zone target meteorological parameter ratio and the corresponding preset warm zone target meteorological parameter weight coefficient to obtain multiple warm zone target meteorological parameter items; determine the sum of multiple warm zone target meteorological parameter items to obtain a warm zone sub-index; obtain a cold zone sub-index according to each cold zone target meteorological parameter and the corresponding preset cold zone meteorological baseline value, including: determining the ratio of each cold zone target meteorological parameter to the corresponding cold zone target meteorological parameter baseline value to obtain multiple cold zone target meteorological parameter ratios; determining the product of each cold zone target meteorological parameter ratio and the corresponding preset cold zone target meteorological parameter weight coefficient to obtain multiple cold zone target meteorological parameter items; determining the sum of multiple cold zone target meteorological parameter items to obtain a cold zone sub-index.

[0016] In an embodiment of the present application, the warning index determination module is further used to determine the sum of the products of the warm area sub-index and the cold area sub-index and the corresponding preset area weight coefficients to obtain the warning index corresponding to the inversion layer.

[0017] In an embodiment of the present application, multiple warm zone target meteorological parameters include the warm zone maximum temperature, the warm zone maximum humidity, the warm zone thickness and the warm zone liquid water content, and the preset warm zone meteorological conditions are that the warm zone maximum temperature is greater than the preset warm zone maximum temperature threshold, the warm zone maximum humidity is greater than or equal to the preset warm zone maximum humidity threshold, the warm zone thickness is greater than or equal to the preset warm zone thickness threshold, and the warm zone liquid water content is greater than or equal to the preset warm zone liquid water content threshold; multiple cold zone target meteorological parameters include the cold zone minimum temperature, the cold zone maximum humidity, the cold zone thickness and the cold zone liquid water content, and the preset cold zone meteorological conditions are that the cold zone minimum temperature is less than the preset cold zone minimum temperature threshold, the cold zone maximum humidity is greater than or equal to the preset cold zone maximum humidity threshold, the cold zone thickness is greater than or equal to the preset cold zone thickness threshold, and the cold zone liquid water content is greater than or equal to the preset cold zone liquid water content threshold.

[0018] In an embodiment of the present application, the control module is also used to: perform freezing rain prevention operations in the warm zone of the inversion layer when the warning index is less than a preset warning index threshold, the warm zone sub-index is greater than or equal to the preset warm zone index threshold, the cold zone sub-index is less than the preset cold zone index threshold, and multiple warm zone target meteorological parameters meet the preset warm zone meteorological conditions.

[0019] In an embodiment of the present application, the control module is also used to: perform freezing rain prevention operations in the cold zone of the inversion layer when the warning index is less than the corresponding preset warning index threshold, the warm zone sub-index is less than the preset warm zone index threshold, the cold zone sub-index is greater than or equal to the preset cold zone index threshold, and multiple cold zone target meteorological parameters meet the preset cold zone meteorological conditions.

[0020] In an embodiment of the present application, the control module is also used to: release a refrigeration catalyst into the cold zone of the inversion layer until the temperature of the cold zone of the inversion layer reaches a preset cold zone temperature threshold; determine the target cold zone volume based on the cold zone thickness and the preset area; determine the target ice nucleation catalyst dosage based on the target cold zone volume, the preset ice crystal concentration and the preset ice nucleation rate; and release an ice nucleation catalyst of the target ice nucleation catalyst dosage into the cold zone of the inversion layer.

[0021] The third aspect of the present application provides an electronic device, comprising: a memory configured to store instructions; and a processor configured to call the instructions from the memory and to implement the above-mentioned control method for freezing rain prevention operations when executing the instructions.

[0022] A fourth aspect of the present application provides a machine-readable storage medium having stored thereon instructions for causing a machine to execute the above-mentioned control method for freezing rain prevention operations.

[0023] The above technical solution, when an inversion layer exists in the target atmospheric region, obtains the warm zone target meteorological parameters of the warm zone of the inversion layer and the cold zone target meteorological parameters of the cold zone of the inversion layer. Thus, based on the warm zone target meteorological parameters and the cold zone target meteorological parameters, the warning index corresponding to the inversion layer can be determined. When the warning index is greater than or equal to the preset warning index threshold, the warm zone target meteorological parameters meet the preset warm zone meteorological conditions, and the cold zone target meteorological parameters meet the preset cold zone meteorological conditions, freezing rain prevention and control operations are performed in the warm zone and the cold zone of the inversion layer. In this way, compared with the existing technology, it is not limited to freezing rain prevention and control operations in the cold zone of the inversion layer, but rather performs freezing rain prevention and control operations in the warm zone and the cold zone of the inversion layer based on the warm zone target meteorological parameters of the warm zone of the inversion layer and the cold zone target meteorological parameters of the cold zone of the inversion layer, thereby reducing the content of supercooled water droplets and improving the phase change efficiency of supercooled water droplets.

[0024] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following detailed description, they are used to explain the embodiments of the present application but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings: Figure 1 A schematic diagram of a flow chart of a control method for freezing rain prevention operations according to an embodiment of the present application is shown; Figure 2 The schematic diagram shows the structure of a control device for freezing rain prevention operations according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] To make the purpose, 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 in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the embodiments of the present application and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0027] It should be noted that the acquisition, transmission, storage, use, and processing of data in the technical solution of this application are in compliance with the relevant provisions of laws and regulations. In the embodiments of this application, certain software, components, models, and other existing solutions in the industry may be mentioned. These should be considered as exemplary. Their purpose is only to illustrate the feasibility of implementing the technical solution of this application, but it does not mean that the applicant has or will necessarily use such solutions.

[0028] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0029] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0030] Figure 1 The following schematically shows a flow chart of a control method for freezing rain prevention operations according to an embodiment of the present application. Figure 1 As shown, an embodiment of the present application provides a control method for freezing rain prevention operations, which is described by taking the application of the control method to a processor as an example. The method may include the following steps.

[0031] Step S101 , when there is an inversion layer in the target atmospheric region, a plurality of warm zone target meteorological parameters of the inversion layer warm zone and a plurality of cold zone target meteorological parameters of the inversion layer cold zone in the inversion layer in the target atmospheric region are obtained.

[0032] Step S102: determining a warning index corresponding to the inversion layer according to a plurality of warm-area target meteorological parameters and a plurality of cold-area target meteorological parameters.

[0033] Step S103, when the warning index is greater than or equal to the preset warning index threshold, multiple warm zone target meteorological parameters meet the preset warm zone meteorological conditions, and multiple cold zone target meteorological parameters meet the preset cold zone meteorological conditions, freezing rain prevention operations are performed in the warm zone of the inversion layer and the cold zone of the inversion layer.

[0034] It can be understood that the target atmospheric region is the atmospheric region below a preset vertical altitude (e.g., 6 km). The inversion layer is the atmospheric region within the target atmospheric region where the atmospheric temperature increases with increasing altitude. The warm zone of the inversion layer is the inversion layer region where the atmospheric temperature is greater than a preset atmospheric temperature threshold (e.g., 0°C), while the cold zone of the inversion layer is the inversion layer region where the atmospheric temperature is less than or equal to the preset atmospheric temperature threshold. The warm zone target meteorological parameters are the meteorological parameters detected in the warm zone of the inversion layer, and the cold zone target meteorological parameters are the meteorological parameters detected in the cold zone of the inversion layer. The warning index is an index used to assess and warn of the freezing rain risk in the inversion layer. The preset warning index threshold is a pre-set warning index threshold. The preset warm zone meteorological conditions are the pre-set warm zone meteorological conditions. The preset cold zone meteorological conditions are the pre-set cold zone meteorological conditions.

[0035] Specifically, the processor can obtain target meteorological parameters for the warm zone of the inversion layer and target meteorological parameters for the cold zone of the inversion layer using a microwave radiometer, a dual-polarization radar, or other meteorological parameter acquisition device. Based on the target meteorological parameters for the warm zone and the target meteorological parameters for the cold zone, the processor can determine a warning index corresponding to the inversion layer, thereby determining whether there is a freezing rain risk in the inversion layer. The processor can compare the warning index with a preset warning index threshold, the target meteorological parameters for the warm zone with preset warm zone meteorological conditions, and the target meteorological parameters for the cold zone with preset cold zone meteorological conditions. If the warning index is greater than or equal to the preset warning index threshold, the target meteorological parameters for the warm zone meet the preset warm zone meteorological conditions, and the target meteorological parameters for the cold zone meet the preset cold zone meteorological conditions, it indicates that there is a freezing rain risk in the inversion layer. Furthermore, if the target meteorological parameters for the warm zone meet the preset warm zone meteorological conditions and the target meteorological parameters for the cold zone meet the preset cold zone meteorological conditions (i.e., both the target meteorological parameters for the warm zone and the target meteorological parameters for the cold zone are suitable for freezing rain prevention and control operations), the processor can control the freezing rain prevention and control device to perform freezing rain prevention and control operations in the warm zone and the cold zone of the inversion layer.

[0036] The above technical solution, when an inversion layer exists in the target atmospheric region, obtains the warm zone target meteorological parameters of the warm zone of the inversion layer and the cold zone target meteorological parameters of the cold zone of the inversion layer. Thus, based on the warm zone target meteorological parameters and the cold zone target meteorological parameters, the warning index corresponding to the inversion layer can be determined. When the warning index is greater than or equal to the preset warning index threshold, the warm zone target meteorological parameters meet the preset warm zone meteorological conditions, and the cold zone target meteorological parameters meet the preset cold zone meteorological conditions, freezing rain prevention and control operations are performed in the warm zone and the cold zone of the inversion layer. In this way, compared with the existing technology, it is not limited to freezing rain prevention and control operations in the cold zone of the inversion layer, but rather performs freezing rain prevention and control operations in the warm zone and the cold zone of the inversion layer based on the warm zone target meteorological parameters of the warm zone of the inversion layer and the cold zone target meteorological parameters of the cold zone of the inversion layer, thereby reducing the content of supercooled water droplets and improving the phase change efficiency of supercooled water droplets.

[0037] In an embodiment of the present application, determining the warning index corresponding to the inversion layer based on the warm zone target meteorological parameters and the cold zone target meteorological parameters may include: obtaining a warm zone sub-index based on each warm zone target meteorological parameter and the corresponding preset warm zone target meteorological parameter baseline value, wherein the warm zone sub-index is positively correlated with each warm zone target meteorological parameter; obtaining a cold zone sub-index based on each cold zone target meteorological parameter and the corresponding preset cold zone target meteorological parameter baseline value, wherein the cold zone sub-index is positively correlated with each cold zone target meteorological parameter; obtaining a warning index corresponding to the inversion layer based on the warm zone sub-index and the cold zone sub-index.

[0038] It can be understood that the preset warm zone target meteorological parameter baseline value is a preset warm zone target meteorological parameter baseline value, and each warm zone target meteorological parameter corresponds to a preset warm zone target meteorological parameter baseline value. The warm zone sub-index is an index for assessing the freezing rain risk in the warm zone of the inversion layer, and the warm zone sub-index is positively correlated with each warm zone target meteorological parameter. The preset cold zone target meteorological parameter baseline value is a preset cold zone target meteorological parameter baseline value, and each cold zone target meteorological parameter corresponds to a preset cold zone target meteorological parameter baseline value. The cold zone sub-index is an index for assessing the freezing rain risk in the cold zone of the inversion layer, and the cold zone sub-index is positively correlated with each cold zone target meteorological parameter.

[0039] Specifically, the processor can determine the sum of the ratios of each warm zone target meteorological parameter to the corresponding preset warm zone target meteorological parameter baseline value to obtain a warm zone sub-index. Similarly, the processor can determine the sum of the ratios of each cold zone target meteorological parameter to the corresponding preset cold zone target meteorological parameter baseline value to obtain a cold zone sub-index. Further, the processor can determine the sum of the warm zone sub-index and the cold zone sub-index to obtain the warning index corresponding to the inversion layer. By comprehensively considering the warm zone sub-index of the warm zone of the inversion layer and the cold zone sub-index of the cold zone of the inversion layer, the processor can determine the overall warning index of the inversion layer, thereby achieving an accurate assessment of the freezing rain risk of the inversion layer as a whole, thereby improving the accuracy of the assessment of the freezing rain risk.

[0040] In an embodiment of the present application, in an embodiment of the present application, a warm zone sub-index is obtained according to each warm zone target meteorological parameter and the corresponding preset warm zone target meteorological parameter baseline value, which may include: determining the ratio of each warm zone target meteorological parameter to the corresponding warm zone target meteorological parameter baseline value to obtain multiple warm zone target meteorological parameter ratios; determining the product of each warm zone target meteorological parameter ratio and the corresponding preset warm zone target meteorological parameter weight coefficient to obtain multiple warm zone target meteorological parameter items; determining the sum of multiple warm zone target meteorological parameter items to obtain a warm zone sub-index; according to each cold zone target meteorological parameter and the corresponding preset cold zone target meteorological parameter baseline value, a cold zone sub-index is obtained, including: determining the ratio of each cold zone target meteorological parameter to the corresponding cold zone target meteorological parameter baseline value to obtain multiple cold zone target meteorological parameter ratios; determining the product of each cold zone target meteorological parameter ratio and the corresponding preset cold zone target meteorological parameter weight coefficient to obtain multiple cold zone target meteorological parameter items; determining the sum of multiple cold zone target meteorological parameter items to obtain a cold zone sub-index.

[0041] It can be understood that the preset warm zone target meteorological parameter weight coefficient is a preset warm zone target meteorological parameter weight coefficient, and the preset cold zone target meteorological parameter weight coefficient is a preset cold zone target meteorological parameter weight coefficient.

[0042] Specifically, the processor may further determine the ratio of each warm zone target meteorological parameter to the corresponding warm zone target meteorological parameter baseline value to obtain multiple warm zone target meteorological parameter ratios, determine the product of each warm zone target meteorological parameter ratio and the corresponding preset warm zone target meteorological parameter weight coefficient to obtain multiple warm zone target meteorological parameter items, and determine the sum of the multiple warm zone target meteorological parameter items to obtain a warm zone sub-index. In other words, the processor may further determine the warm zone sub-index according to the following formula:

[0043] in, is the warm zone sub-index, is the highest temperature in the warm zone among the warm zone target meteorological parameters, is the thickness of the warm zone in the warm zone target meteorological parameters, is the warm zone liquid water content in the warm zone target meteorological parameters, The highest humidity in the warm zone among the warm zone target meteorological parameters. 、 、 as well as The preset cold zone target meteorological parameter benchmark values ​​corresponding to each cold zone target meteorological parameter, 、 、 as well as is the ratio of target meteorological parameters in each cold zone, 、 、 as well as The preset cold zone target meteorological parameter weight coefficients corresponding to the ratios of each cold zone target meteorological parameter.

[0044] The processor may also determine the ratio of each cold zone target meteorological parameter to the corresponding cold zone target meteorological parameter baseline value to obtain multiple cold zone target meteorological parameter ratios, determine the product of each cold zone target meteorological parameter ratio and the corresponding preset cold zone target meteorological parameter weight coefficient to obtain multiple cold zone target meteorological parameter items, and determine the sum of the multiple cold zone target meteorological parameter items to obtain the cold zone sub-index. In other words, the processor may also determine the warm zone sub-index according to the following formula:

[0045] in, is the cold zone sub-index, is the lowest temperature in the cold zone among the target meteorological parameters of the cold zone, is the cold zone thickness in the cold zone target meteorological parameters, is the liquid water content in the cold zone among the target meteorological parameters in the cold zone, is the highest humidity in the cold zone among the target meteorological parameters in the cold zone. 、 、 as well as The preset cold zone target meteorological parameter benchmark values ​​corresponding to each cold zone target meteorological parameter, 、 、 as well as is the ratio of target meteorological parameters in each cold zone, 、 、 as well as are the preset cold zone target meteorological parameter weight coefficients corresponding to the ratios of the target meteorological parameters in each cold zone.

[0046] In this way, the processor sets the preset warm zone target meteorological parameter weight coefficient corresponding to the ratio of the warm zone target meteorological parameters corresponding to the warm zone of the inversion layer, and sets the preset cold zone target meteorological parameter weight coefficient corresponding to the ratio of the cold zone target meteorological parameters corresponding to the cold zone of the inversion layer, determines the degree of influence of each warm zone target meteorological parameter in the warm zone of the inversion layer on the freezing rain risk, and the degree of influence of each cold zone target meteorological parameter in the cold zone of the inversion layer on the freezing rain risk, thereby achieving accurate determination of the warm zone sub-index of the warm zone of the inversion layer and the cold zone sub-index of the inversion layer, and improving the accuracy of freezing rain risk estimation.

[0047] In an embodiment of the present application, obtaining a warning index corresponding to the inversion layer based on the warm area sub-index and the cold area sub-index may include: determining the sum of the products of the warm area sub-index and the cold area sub-index and the corresponding preset area weight coefficient to obtain the warning index corresponding to the inversion layer.

[0048] It can be understood that the preset regional weight coefficient is a pre-set regional weight coefficient, and the warm area of ​​the inversion layer and the cold area of ​​the inversion layer each correspond to a preset regional weight coefficient.

[0049] The processor can determine the sum of the products of the warm zone sub-index and the cold zone sub-index and the corresponding preset regional weight coefficients, thereby obtaining the warning index corresponding to the inversion layer. Similarly, the processor can determine the warning index corresponding to the inversion layer according to the following formula:

[0050] in, is the warning index corresponding to the inversion layer, is the warm zone sub-index, is the cold zone sub-index, 、 They are the preset regional weight coefficients corresponding to the warm area sub-index and the cold area sub-index respectively.

[0051] In this way, the processor sets corresponding preset regional weight coefficients for the warm zone of the inversion layer and the cold zone of the inversion layer, respectively, and determines the degree of influence of the warm zone sub-index of the warm zone of the inversion layer and the cold zone sub-index of the cold zone of the inversion layer on the freezing rain risk. In other words, it can synergistically consider the influence of meteorological data of the warm zone of the inversion layer and the cold zone of the inversion layer on the freezing rain risk, and realize accurate prediction of the freezing rain risk.

[0052] In an embodiment of the present application, multiple warm zone target meteorological parameters include the warm zone maximum temperature, the warm zone maximum humidity, the warm zone thickness and the warm zone liquid water content, and the preset warm zone meteorological conditions are that the warm zone maximum temperature is greater than the preset warm zone maximum temperature threshold, the warm zone maximum humidity is greater than or equal to the preset warm zone maximum humidity threshold, the warm zone thickness is greater than or equal to the preset warm zone thickness threshold, and the warm zone liquid water content is greater than or equal to the preset warm zone liquid water content threshold; multiple cold zone target meteorological parameters include the cold zone minimum temperature, the cold zone maximum humidity, the cold zone thickness and the cold zone liquid water content, and the preset cold zone meteorological conditions are that the cold zone minimum temperature is less than the preset cold zone minimum temperature threshold, the cold zone maximum humidity is greater than or equal to the preset cold zone maximum humidity threshold, the cold zone thickness is greater than or equal to the preset cold zone thickness threshold, and the cold zone liquid water content is greater than or equal to the preset cold zone liquid water content threshold.

[0053] It is understood that the warm zone target meteorological parameters may include, but are not limited to, the warm zone maximum temperature, warm zone maximum humidity, warm zone thickness, and warm zone liquid water content. The warm zone maximum temperature is the highest temperature detected within the warm zone of the inversion layer; the warm zone maximum humidity is the highest humidity detected within the warm zone of the inversion layer; the warm zone thickness is the vertical height of the warm zone of the inversion layer relative to the ground; and the warm zone liquid water content is the liquid water content detected within the warm zone of the inversion layer. The preset warm zone meteorological conditions and the preset cold zone meteorological conditions are meteorological requirements for the processor to control the freezing rain prevention and control device to perform freezing rain prevention and control operations. The preset warm zone maximum temperature threshold is a preset warm zone maximum temperature threshold. The preset warm zone maximum humidity threshold is a preset warm zone maximum humidity threshold. The preset warm zone thickness threshold is a preset warm zone thickness threshold. The preset warm zone liquid water content threshold is a preset warm zone liquid water content threshold. The target meteorological parameters for the cold zone may include, but are not limited to, the cold zone minimum temperature, the cold zone maximum humidity, the cold zone thickness, and the cold zone liquid water content. The cold zone minimum temperature is the lowest temperature detected in the cold zone of the inversion layer. The cold zone maximum humidity is the highest humidity detected in the cold zone of the inversion layer. The cold zone thickness is the vertical height of the cold zone of the inversion layer relative to the ground. The cold zone liquid water content is the liquid water content detected in the cold zone of the inversion layer. The preset cold zone minimum temperature threshold is a preset cold zone minimum temperature threshold. The preset cold zone maximum humidity threshold is a preset cold zone maximum humidity threshold. The preset cold zone thickness threshold is a preset cold zone thickness threshold. The preset cold zone liquid water content threshold is a preset cold zone liquid water content threshold.

[0054] Specifically, the preset warm zone meteorological conditions are that the warm zone maximum temperature is greater than the preset warm zone maximum temperature threshold, the warm zone maximum humidity is greater than or equal to the preset warm zone maximum humidity threshold, the warm zone thickness is greater than or equal to the preset warm zone thickness threshold, and the warm zone liquid water content is greater than or equal to the preset warm zone liquid water content threshold. If the warm zone maximum temperature is greater than the preset warm zone maximum temperature threshold, it means that the atmospheric temperature in the warm zone of the inversion layer is relatively high, which can ensure the melting of ice-phase particles. If the warm zone maximum humidity is greater than or equal to the preset warm zone maximum humidity threshold, it means that there is sufficient water vapor in the warm zone of the inversion layer, which can be used for freezing rain prevention and control operations. If the warm zone thickness is greater than or equal to the preset warm zone thickness threshold, it means that the warm zone of the inversion layer can provide sufficient space to promote the phase change of small water droplets. If the warm zone liquid water content is greater than or equal to the preset warm zone liquid water content threshold, it means that the liquid water content in the warm zone of the inversion layer can meet the warm zone liquid water content requirements for freezing rain prevention and control operations.

[0055] The preset cold zone meteorological conditions are: the cold zone minimum temperature is less than the preset cold zone minimum temperature threshold; the cold zone maximum humidity is greater than or equal to the preset cold zone maximum humidity threshold; the cold zone thickness is greater than or equal to the preset cold zone thickness threshold; and the cold zone liquid water content is greater than or equal to the preset cold zone liquid water content threshold. If the cold zone minimum temperature is less than the preset cold zone minimum temperature threshold, it indicates that the temperature in the cold zone of the inversion layer meets the cold zone minimum temperature requirement for freezing rain prevention operations. If the cold zone maximum humidity is greater than or equal to the preset cold zone maximum humidity threshold, it indicates that there is sufficient water vapor in the cold zone of the inversion layer for freezing rain prevention operations. If the cold zone thickness is greater than or equal to the preset cold zone thickness threshold, it indicates that the cold zone of the inversion layer provides sufficient space to promote the phase transition of small water droplets. If the cold zone liquid water content is greater than or equal to the preset cold zone liquid water content threshold, it indicates that the liquid water content in the cold zone of the inversion layer meets the cold zone liquid water content requirement for freezing rain prevention operations.

[0056] In an embodiment of the present application, the control method may further include: performing freezing rain prevention operations in the warm zone of the inversion layer when the warning index is less than a preset warning index threshold, the warm zone sub-index is greater than or equal to the preset warm zone index threshold, the cold zone sub-index is less than the preset cold zone index threshold, and multiple warm zone target meteorological parameters meet the preset warm zone meteorological conditions.

[0057] Specifically, after determining that the warning index is less than the preset warning index threshold, the warm zone sub-index is greater than or equal to the preset warm zone index threshold, the cold zone sub-index is less than the preset cold zone index threshold, and the warm zone target meteorological parameters meet the preset warm zone meteorological conditions, the processor can determine that the risk of freezing rain formed in the inversion layer and the cold zone of the inversion layer is relatively small, while the risk of freezing rain formed in the warm zone of the inversion layer is relatively large, and the warm zone target meteorological parameters in the warm zone of the inversion layer meet the preset warm zone meteorological conditions required for freezing rain prevention and control operations. At this time, the processor can control the freezing rain prevention and control device to perform freezing rain prevention and control operations on the warm zone of the inversion layer, and can realize freezing rain prevention and control operations in a single warm zone of the inversion layer, reduce the freezing rain content, and thus reduce the threat of icing.

[0058] In an embodiment of the present application, the control method may also include: performing freezing rain prevention operations in the cold zone of the inversion layer when the warning index is less than the corresponding preset warning index threshold, the warm zone sub-index is less than the preset warm zone index threshold, the cold zone sub-index is greater than or equal to the preset cold zone index threshold, and multiple cold zone target meteorological parameters meet the preset cold zone meteorological conditions.

[0059] Specifically, after determining that the warning index is less than the corresponding preset warning index threshold, the warm zone sub-index is less than the preset warm zone index threshold, the cold zone sub-index is greater than or equal to the preset cold zone index threshold, and multiple cold zone target meteorological parameters meet the preset cold zone meteorological conditions, the processor can determine that the risk of freezing rain formed in the inversion layer and the warm zone of the inversion layer is relatively small, while the risk of freezing rain formed in the cold zone of the inversion layer is relatively large, and multiple cold zone target meteorological parameters in the cold zone of the inversion layer meet the preset cold zone meteorological conditions required for freezing rain prevention and control operations. At this time, the processor can control the freezing rain prevention and control device to perform freezing rain prevention and control operations on the cold zone of the inversion layer, and can realize freezing rain prevention and control operations on a single cold zone of the inversion layer, reduce the freezing rain content, and thus reduce the threat of icing.

[0060] In an embodiment of the present application, freezing rain prevention operations in the cold zone of the inversion layer may include: placing a refrigeration catalyst in the cold zone of the inversion layer until the temperature of the cold zone of the inversion layer reaches a preset cold zone temperature threshold; determining the target cold zone volume based on the cold zone thickness and the preset area; determining the target ice nucleation catalyst dosage based on the target cold zone volume, the preset ice crystal concentration and the preset ice nucleation rate; and placing an ice nucleation catalyst with a target ice nucleation catalyst dosage in the cold zone of the inversion layer.

[0061] It is understood that the refrigeration catalyst is used to reduce the atmospheric temperature in the cold zone of the inversion layer. The refrigeration catalyst may include, but is not limited to, dry ice or liquid nitrogen. The ice nucleation catalyst is used to increase the rate of phase change (liquid to solid) of small water droplets in the cold zone of the inversion layer. The ice nucleation catalyst may include silver iodide (AgI). The preset area is an area preset for preventing and controlling freezing rain. The target cold zone volume is the volume of the entire cold zone under the preset area, determined based on the preset area and the cold zone thickness. The preset ice crystal concentration is a preset ice crystal concentration. The preset ice nucleation rate is a preset ice nucleation rate.

[0062] Specifically, the processor can control a freezing rain prevention device (e.g., a remotely controlled device such as a drone) to release a refrigeration catalyst into the cold zone of the inversion layer, thereby lowering the atmospheric temperature in the cold zone of the inversion layer, thereby prompting small water droplets in the cold zone of the inversion layer to quickly condense or become supercooled water droplets, until the temperature of the cold zone of the inversion layer reaches a preset cold zone temperature threshold. The refrigeration catalyst dosage of the refrigeration catalyst can be determined by the following formula:

[0063] in, is the refrigeration catalyst dosage, is the preset cooling range. is the cold zone volume of the inversion layer, is the constant pressure specific heat capacity of air in the cold zone of the inversion layer, is the air density in the cold zone of the inversion layer, It is the latent heat of sublimation in the cold zone of the inversion layer.

[0064] In the low-temperature environment of the inversion layer cold zone created by the refrigeration catalyst, the target ice nucleation catalyst dosage is added to enable the supercooled water droplets in the inversion layer cold zone to undergo a rapid phase change, thereby consuming the supercooled water droplets and increasing the number of ice crystals, thereby avoiding the formation of freezing rain and the threat of icing. The processor can predetermine the target ice nucleation catalyst dosage of the ice nucleation catalyst so that the supercooled water droplets in the inversion layer cold zone can combine with the ice nucleation catalyst to the greatest extent possible to form ice crystals. The processor can determine the target ice nucleation catalyst dosage according to the following formula:

[0065] in, is the target ice nucleation catalyst dosage, To preset the ice crystal concentration, is the target cold zone volume, is the preset ice nucleation rate.

[0066] In addition, the processor may also control the freezing rain prevention device to deliver a target hygroscopic catalyst dosage to the warm zone of the inversion layer. The hygroscopic catalyst may include CaCl2 and NaCl, and the particle size D of the hygroscopic catalyst may be in the range of 10-50 microns. The processor may pre-acquire the volume of the warm zone and the liquid water content at the top of the warm zone. The volume of the warm zone is the product of a preset area and the thickness of the warm zone, thereby determining the target hygroscopic catalyst dosage of the hygroscopic catalyst, which may be determined by the following formula:

[0067] in, is the target hygroscopic catalyst dosage, is the preset coefficient, is the volume of the warm zone, is the liquid water content at the top of the warm zone, is the preset catalytic efficiency.

[0068] Specifically, the processor can also control freezing rain prevention devices (such as remote-controlled devices such as drones) to disperse the hygroscopic catalyst across the top of the warm zone of the inversion layer, ensuring that it diffuses into the middle and lower parts of the warm layer. This creates a large number of small water droplets in the warm zone of the inversion layer, preventing the formation of large raindrops. Specifically, small raindrops have a small particle size and low heat capacity. Upon entering the cold zone, they dissipate heat more efficiently and quickly cool to a preset cold zone temperature threshold (ice nucleation threshold), shortening their cooling window in the cold zone of the inversion layer.

[0069] In a specific embodiment, the processor can obtain the target meteorological parameters of the warm zone of the inversion layer and the target meteorological parameters of the cold zone of the inversion layer through a multi-source meteorological detection device. The multi-source meteorological detection device can include a dual-polarization radar and a microwave radiometer. The microwave radiometer is used to obtain the maximum temperature, maximum humidity and thickness of the warm zone of the inversion layer, and the minimum temperature, maximum humidity and thickness of the cold zone of the cold zone of the inversion layer. The warm zone of the inversion layer and the cold zone of the inversion layer are divided into a multi-layer inversion layer warm zone and a multi-layer inversion layer cold zone respectively. The processor obtains the reflectivity factor (Z) of each layer of the warm zone of each layer of the inversion layer and the differential reflectivity (ZDR) of each layer of the warm zone of the inversion layer through the dual-polarization radar. The processor can convert the reflectivity factor of each layer in the warm zone according to the following formula (convert the unit dBZ to the unit ZDR). ), to obtain Reflectivity factors of each layer in the warm zone as units:

[0070] in, The reflectivity factor of each layer in the warm zone is Z For The reflectivity factor of each layer in the warm zone is used as the unit.

[0071] The processor can further determine the liquid water content of each layer in the warm zone of each inversion layer according to the following formula:

[0072] in, is the liquid water content of each layer in the warm area, c, d, e are all preset coefficients, Z is the reflectivity factor of each layer in the warm area, and ZDR is the differential reflectivity of each layer in the warm area.

[0073] The postprocessor can then determine the liquid water content in the warm zone of the inversion layer according to the following formula:

[0074] in, is the liquid water content in the warm zone, is the liquid water content of each layer in the warm zone, z represents the height of the warm zone, is the height of the lower layers in the warm zone, It is the height of each layer in the warm zone.

[0075] The processor may also use other methods to determine the liquid water content in the warm zone, which will not be described in detail here. The method for determining the liquid water content in the cold zone of the inversion layer is the same as above, which will not be described in detail here.

[0076] In this way, the processor can determine the temperature profile by monitoring the temperature of the target atmospheric area, thereby determining whether there is an inversion layer in the target atmospheric area, and then determining the inversion layer warm zone and the inversion layer cold zone in the inversion layer, wherein the inversion layer warm zone includes the inversion layer area greater than 0°C, and the inversion layer warm zone can also include the atmospheric area above the inversion layer area greater than 0°C (the thickness of the warm zone of the inversion layer can be increased).

[0077] Based on this, the processor can obtain multiple warm zone target meteorological parameters of the warm zone of the inversion layer and multiple cold zone target meteorological parameters of the cold zone of the inversion layer in real time through the meteorological detection device. The warm zone target meteorological parameters may include the warm zone maximum temperature, the warm zone maximum humidity, the warm zone thickness and the warm zone liquid water content, and the cold zone target meteorological parameters may include the cold zone minimum temperature, the cold zone maximum humidity, the cold zone thickness and the cold zone liquid water content. Among them, the preset warm zone meteorological conditions are that the warm zone maximum temperature is greater than the preset warm zone maximum temperature threshold (for example, 3°C), the warm zone maximum humidity is greater than or equal to the preset warm zone maximum humidity threshold (for example, 80%), the warm zone thickness is greater than or equal to the preset warm zone thickness threshold (for example, 500m), and the warm zone liquid water content is greater than or equal to the preset warm zone liquid water content threshold (for example, 0.5 g / m 3 km); the preset cold zone meteorological conditions are that the minimum temperature of the cold zone is less than the preset cold zone minimum temperature threshold (e.g., -3°C), the maximum humidity of the cold zone is greater than or equal to the preset cold zone maximum humidity threshold (e.g., 90%), the thickness of the cold zone is greater than or equal to the preset cold zone thickness threshold (e.g., 200m), and the liquid water content of the cold zone is greater than or equal to the preset cold zone liquid water content threshold (e.g., 0.3g / m 3 km).

[0078] The processor can construct an inversion layer warning model and obtain the warm zone target meteorological parameters of the warm zone of the inversion layer and the cold zone target meteorological parameters of the cold zone of the inversion layer in real time at preset time intervals (for example, ten minutes). Based on the inversion layer warning model, the processor determines the warm zone sub-index, the cold zone sub-index and the warning index according to the warm zone target meteorological parameters of the warm zone of the inversion layer and the cold zone target meteorological parameters of the cold zone of the inversion layer. It can be seen that the input parameters of the inversion layer warning model include the maximum temperature of the warm zone, the maximum humidity of the warm zone, the thickness of the warm zone and the liquid water content of the warm zone, and the minimum temperature of the cold zone, the maximum humidity of the cold zone, the thickness of the cold zone and the liquid water content of the cold zone. Its output parameters may include the warm zone sub-index, the cold zone sub-index and the warning index. Specifically, the warm zone sub-index can be determined according to the maximum temperature of the warm zone, the maximum humidity of the warm zone, the thickness of the warm zone and the liquid water content of the warm zone, as shown in the following warm zone sub-index determination formula:

[0079] in, is the warm zone sub-index, is the highest temperature in the warm zone among the warm zone target meteorological parameters, is the thickness of the warm zone in the warm zone target meteorological parameters, is the warm zone liquid water content in the warm zone target meteorological parameters, The highest humidity in the warm zone among the warm zone target meteorological parameters. 、 、 as well as The preset cold zone target meteorological parameter reference values ​​corresponding to each cold zone target meteorological parameter can be 5°C, 1500 m, 2 g / m 3 km and 100%, 、 、 as well as is the ratio of target meteorological parameters in each cold zone, 、 、 as well as The preset cold zone target meteorological parameter weight coefficients corresponding to the ratios of the cold zone target meteorological parameters may be 0.3, 0.3, 0.2, and 0.2, respectively.

[0080] The processor can also determine the cold zone sub-index based on the inversion layer warning model according to the cold zone minimum temperature, cold zone maximum humidity, cold zone thickness, and cold zone liquid water content, as shown in the following warm zone sub-index determination formula:

[0081] in, is the cold zone sub-index, is the lowest temperature in the cold zone among the target meteorological parameters of the cold zone, is the cold zone thickness in the cold zone target meteorological parameters, is the liquid water content in the cold zone among the target meteorological parameters in the cold zone, is the highest humidity in the cold zone among the target meteorological parameters in the cold zone. 、 、 as well as The preset cold zone target meteorological parameter reference values ​​corresponding to each cold zone target meteorological parameter can be 10°C, 500 m, 1 g / m 3 km and 100%, 、 、 as well as is the ratio of target meteorological parameters in each cold zone, 、 、 as well as are preset cold zone target meteorological parameter weight coefficients corresponding to the ratios of the cold zone target meteorological parameters, which may be 0.4, 0.3, 0.2 and 0.1 respectively.

[0082] The processor can also use the warm area sub-index and the cold area sub-index as input parameters and the warning index as output parameter based on the inversion layer warning model. The specific warning index determination formula can be used:

[0083] in, is the warning index corresponding to the inversion layer, is the warm zone sub-index, is the cold zone sub-index, 、 are the preset regional weight coefficients corresponding to the warm area sub-index and the cold area sub-index, which can be set to 0.6 and 0.4 respectively.

[0084] The specific logic of the freezing rain prevention operation of the processor is as follows: the processor can set the preset warning index threshold to 0.65, the preset warm zone index threshold to 0.7, and the preset cold zone index threshold to 0.6. At this time, when the warning index When the warning index is greater than or equal to 0.65, the warm zone target meteorological parameters meet the preset warm zone meteorological conditions, and the cold zone target meteorological parameters meet the preset cold zone meteorological conditions, freezing rain prevention operations are carried out in the warm zone of the inversion layer and the cold zone of the inversion layer; when the warning index is less than 0.65, the warm zone sub-index When the warning index is greater than or equal to 0.7, the cold zone sub-index is less than 0.6, and the warm zone target meteorological parameters meet the preset warm zone meteorological conditions, freezing rain prevention operations are carried out in the warm zone of the inversion layer; when the warning index is less than 0.65, the warm zone sub-index is less than 0.7, the cold zone sub-index is greater than or equal to 0.6, and the cold zone target meteorological parameters meet the preset cold zone meteorological conditions, freezing rain prevention operations are carried out in the cold zone of the inversion layer. In other cases, the processor suspends the operation and recalibrates the data.

[0085] The processor controls the freezing rain prevention device to perform freezing rain prevention operations in the warm area of ​​the inversion layer as follows: The processor may also control the freezing rain prevention device to deliver a target hygroscopic catalyst dosage to the warm zone of the inversion layer. The hygroscopic catalyst may include CaCl2 and NaCl, and the particle size D of the hygroscopic catalyst may be in the range of 10-50 microns. The processor may pre-acquire the volume of the warm zone and the liquid water content at the top of the warm zone. The volume of the warm zone is the product of a preset area and the thickness of the warm zone, thereby determining the target hygroscopic catalyst dosage of the hygroscopic catalyst, which may be determined by the following formula:

[0086] in, is the target hygroscopic catalyst dosage, is a preset coefficient, for example =0.3, is the volume of the warm zone, is the liquid water content at the top of the warm zone, To preset the catalytic efficiency, e.g. =0.8.

[0087] Specifically, the processor can also control freezing rain prevention devices (such as remote-controlled devices such as drones) to disperse the hygroscopic catalyst across the top of the warm zone of the inversion layer, ensuring that it diffuses into the middle and lower parts of the warm layer. This creates a large number of small water droplets in the warm zone of the inversion layer, preventing the formation of large raindrops. Specifically, small raindrops have a small particle size and low heat capacity. Upon entering the cold zone, they dissipate heat more efficiently and quickly cool to a preset cold zone temperature threshold (ice nucleation threshold), shortening their cooling window in the cold zone of the inversion layer.

[0088] The processor controls the freezing rain prevention device to perform freezing rain prevention operations in the cold area of ​​the inversion layer as follows: The processor can control a freezing rain prevention device (e.g., a remote control device such as a drone) to release a refrigeration catalyst into the cold zone of the inversion layer, thereby lowering the atmospheric temperature in the cold zone of the inversion layer, thereby causing small water droplets in the cold zone of the inversion layer to quickly condense or become supercooled water droplets, until the temperature of the cold zone of the inversion layer reaches a preset cold zone temperature threshold (e.g., -7°C). The refrigeration catalyst dosage of the refrigeration catalyst can be determined by the following formula:

[0089] in, is the refrigeration catalyst dosage, The preset temperature reduction range is ≥5°C. is the cold zone volume of the inversion layer, is the specific heat capacity of air at constant pressure in the cold zone of the inversion layer (e.g., 1005 J / kg / K), is the air density in the cold zone of the inversion layer (e.g., 1.2 kg / m 3 ), It is the latent heat of sublimation in the cold zone of the inversion layer (571kJ / kg).

[0090] In the low-temperature environment of the inversion layer cold zone created by the refrigeration catalyst, the target ice nucleation catalyst dosage is added to increase the nucleation rate of the ice nucleation catalyst, strengthen the cold layer catalytic conditions, and enable the supercooled water droplets in the inversion layer cold zone to achieve rapid phase change, thereby consuming the supercooled water droplets and increasing the number of ice crystals, thereby avoiding the formation of freezing rain and the threat of ice cover. Among them, the processor can pre-determine the target ice nucleation catalyst dosage of the ice nucleation catalyst so that the supercooled water droplets in the inversion layer cold zone can combine with the ice nucleation catalyst to the greatest extent to form ice crystals. The processor can determine the target ice nucleation catalyst dosage according to the following formula:

[0091] in, is the target ice nucleation catalyst dosage, For a preset ice crystal concentration (e.g., 10 3 L -1 ), is the target cold zone volume, For a preset ice nucleation rate (e.g., 10 15 g -1 ).

[0092] This technical approach significantly improves the phase conversion efficiency of supercooled water by establishing a spatiotemporally coupled dual-zone synergistic catalytic mechanism (in the warm layer, a hygroscopic catalyst induces the targeted generation of small raindrop clusters; in the cold layer, AgI and refrigerant synergistically catalyze the rapid phase transition of supercooled water). This system also establishes a real-time monitoring system for the three-dimensional temperature, humidity, and liquid water parameters of the inversion layer. This creates a closed-loop control capability for the entire chain of freezing rain prevention and control. This approach maximizes the phase conversion of supercooled water droplets from liquid to solid water, preventing them from forming dense ice layers on critical infrastructure such as transmission lines and transportation facilities, which could affect the normal operation of the power grid.

[0093] The technical effects of this application are as follows: the spatiotemporal coupling mechanism of a hygroscopic catalyst (liquid phase) placed in the warm zone of the inversion layer and an ice nucleation catalyst (solid phase) placed in the cold zone of the inversion layer can achieve a phase change chain reaction, surpassing the phase change efficiency of traditional single-zone catalysis and greatly improving the phase change efficiency of supercooled water droplets. Based on the real-time acquisition and analysis of the three-dimensional parameters of the inversion layer temperature, humidity, and liquid water, the supercooled water retention time window in the cold layer is dynamically matched, overcoming the phase change window compression problem caused by global warming, achieving phase change of supercooled water droplets in a short time, and ensuring the timeliness of catalytic operation. In addition, by first placing a refrigeration catalyst (such as dry ice / liquid nitrogen) in the cold zone of the inversion layer to achieve targeted pre-cooling, the cold layer temperature is reduced to the efficient ice nucleation threshold. The addition of an ice nucleation catalyst (AgI) can increase the AgI nucleation rate and strengthen the catalytic conditions in the cold layer.

[0094] Figure 2 The schematic diagram of the structure of the control device for freezing rain prevention operation in one embodiment of the present application is shown. Figure 2 As shown, the embodiment of the present application provides a control device 200 for freezing rain prevention operations, and the device 200 may include: An acquisition module 201 is configured to acquire, when an inversion layer exists in the target atmospheric region, a plurality of warm-area target meteorological parameters of a warm area of ​​the inversion layer and a plurality of cold-area target meteorological parameters of a cold area of ​​the inversion layer in the target atmospheric region; The warning index determination module 202 is used to determine the warning index corresponding to the inversion layer based on multiple warm area target meteorological parameters and multiple cold area target meteorological parameters; The control module 203 is used to perform freezing rain prevention operations in the warm zone of the inversion layer and the cold zone of the inversion layer when the warning index is greater than or equal to the preset warning index threshold, multiple warm zone target meteorological parameters meet the preset warm zone meteorological conditions, and multiple cold zone target meteorological parameters meet the preset cold zone meteorological conditions.

[0095] In one embodiment, the warning index determination module 202 is further used to: obtain a warm zone sub-index based on each warm zone target meteorological parameter and a corresponding preset warm zone target meteorological parameter baseline value, wherein the warm zone sub-index is positively correlated with each warm zone target meteorological parameter; obtain a cold zone sub-index based on each cold zone target meteorological parameter and a corresponding preset cold zone target meteorological parameter baseline value, wherein the cold zone sub-index is positively correlated with each cold zone target meteorological parameter; obtain a warning index corresponding to the inversion layer based on the warm zone sub-index and the cold zone sub-index.

[0096] In one embodiment, the early warning index determination module 202 is also used to: determine the ratio of each warm zone target meteorological parameter to the corresponding warm zone target meteorological parameter baseline value to obtain multiple warm zone target meteorological parameter ratios; determine the product of each warm zone target meteorological parameter ratio and the corresponding preset warm zone target meteorological parameter weight coefficient to obtain multiple warm zone target meteorological parameter items; determine the sum of multiple warm zone target meteorological parameter items to obtain a warm zone sub-index; obtain a cold zone sub-index according to each cold zone target meteorological parameter and the corresponding preset cold zone meteorological baseline value, including: determining the ratio of each cold zone target meteorological parameter to the corresponding cold zone target meteorological parameter baseline value to obtain multiple cold zone target meteorological parameter ratios; determining the product of each cold zone target meteorological parameter ratio and the corresponding preset cold zone target meteorological parameter weight coefficient to obtain multiple cold zone target meteorological parameter items; determining the sum of multiple cold zone target meteorological parameter items to obtain a cold zone sub-index.

[0097] In one embodiment, the warning index determination module 202 is further configured to determine the sum of the products of the warm area sub-index and the cold area sub-index and the corresponding preset regional weight coefficients to obtain the warning index corresponding to the inversion layer.

[0098] In one embodiment, multiple warm zone target meteorological parameters include the warm zone maximum temperature, the warm zone maximum humidity, the warm zone thickness and the warm zone liquid water content, and the preset warm zone meteorological conditions are that the warm zone maximum temperature is greater than the preset warm zone maximum temperature threshold, the warm zone maximum humidity is greater than or equal to the preset warm zone maximum humidity threshold, the warm zone thickness is greater than or equal to the preset warm zone thickness threshold, and the warm zone liquid water content is greater than or equal to the preset warm zone liquid water content threshold; multiple cold zone target meteorological parameters include the cold zone minimum temperature, the cold zone maximum humidity, the cold zone thickness and the cold zone liquid water content, and the preset cold zone meteorological conditions are that the cold zone minimum temperature is less than the preset cold zone minimum temperature threshold, the cold zone maximum humidity is greater than or equal to the preset cold zone maximum humidity threshold, the cold zone thickness is greater than or equal to the preset cold zone thickness threshold, and the cold zone liquid water content is greater than or equal to the preset cold zone liquid water content threshold.

[0099] In one embodiment, the control module 203 is also used to: perform freezing rain prevention operations in the warm zone of the inversion layer when the warning index is less than a preset warning index threshold, the warm zone sub-index is greater than or equal to the preset warm zone index threshold, the cold zone sub-index is less than the preset cold zone index threshold, and multiple warm zone target meteorological parameters meet the preset warm zone meteorological conditions.

[0100] In one embodiment, the control module 203 is also used to: perform freezing rain prevention operations in the cold zone of the inversion layer when the warning index is less than the corresponding preset warning index threshold, the warm zone sub-index is less than the preset warm zone index threshold, the cold zone sub-index is greater than or equal to the preset cold zone index threshold, and multiple cold zone target meteorological parameters meet the preset cold zone meteorological conditions.

[0101] In one embodiment, the control module 203 is also used to: release a refrigeration catalyst into the cold zone of the inversion layer until the temperature of the cold zone of the inversion layer reaches a preset cold zone temperature threshold; determine the target cold zone volume based on the cold zone thickness and the preset area; determine the target ice nucleation catalyst dosage based on the target cold zone volume, the preset ice crystal concentration and the preset ice nucleation rate; and release an ice nucleation catalyst of the target ice nucleation catalyst dosage into the cold zone of the inversion layer.

[0102] An embodiment of the present application also provides an electronic device, comprising: a memory configured to store instructions; and a processor configured to call the instructions from the memory and implement the above-mentioned control method for freezing rain prevention operations when executing the instructions.

[0103] An embodiment of the present application also provides a machine-readable storage medium having stored thereon instructions for enabling a machine to execute the above-mentioned control method for freezing rain prevention operations.

[0104] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0105] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0106] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0107] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0108] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0109] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0110] Computer-readable media includes both permanent and non-permanent, removable and non-removable media that can be implemented using any method or technology for information storage. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change RAM (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices, or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media, such as modulated data signals and carrier waves.

[0111] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0112] The above are merely embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A control method for freezing rain prevention operations, characterized in that: include: When an inversion layer exists in the target atmospheric region, obtaining a plurality of warm-area target meteorological parameters of a warm area of ​​the inversion layer and a plurality of cold-area target meteorological parameters of a cold area of ​​the inversion layer in the target atmospheric region; determining a warning index corresponding to the inversion layer according to the plurality of warm zone target meteorological parameters and the plurality of cold zone target meteorological parameters; When the warning index is greater than or equal to the preset warning index threshold, the multiple warm zone target meteorological parameters meet the preset warm zone meteorological conditions, and the multiple cold zone target meteorological parameters meet the preset cold zone meteorological conditions, freezing rain prevention and control operations are carried out in the warm zone of the inversion layer and the cold zone of the inversion layer.

2. The control method according to claim 1, characterized in that: The determining, based on the plurality of warm-area target meteorological parameters and the plurality of cold-area target meteorological parameters, a warning index corresponding to the inversion layer includes: Obtaining a warm area sub-index according to each of the warm area target meteorological parameters and a corresponding preset warm area target meteorological parameter reference value, wherein the warm area sub-index is positively correlated with each of the warm area target meteorological parameters; Obtaining a cold zone sub-index according to each of the cold zone target meteorological parameters and a corresponding preset cold zone target meteorological parameter reference value, wherein the cold zone sub-index is positively correlated with each of the cold zone target meteorological parameters; An early warning index corresponding to the inversion layer is obtained according to the warm area sub-index and the cold area sub-index.

3. The control method according to claim 2, characterized in that: The warm zone sub-index is obtained according to each of the warm zone target meteorological parameters and the corresponding preset warm zone target meteorological parameter reference value, including: determining a ratio of each of the warm-zone target meteorological parameters to a corresponding warm-zone target meteorological parameter reference value to obtain a plurality of warm-zone target meteorological parameter ratios; Determining the product of each of the warm zone target meteorological parameter ratios and the corresponding preset warm zone target meteorological parameter weight coefficients to obtain a plurality of warm zone target meteorological parameter items; determining a sum of a plurality of the warm zone target meteorological parameter items to obtain the warm zone sub-index; According to each of the cold zone target meteorological parameters and the corresponding preset cold zone meteorological reference values, a cold zone sub-index is obtained, including: Determining a ratio of each of the cold zone target meteorological parameters to a corresponding cold zone target meteorological parameter reference value to obtain a plurality of cold zone target meteorological parameter ratios; Determine the product of each of the cold zone target meteorological parameter ratios and the corresponding preset cold zone target meteorological parameter weight coefficient to obtain a plurality of cold zone target meteorological parameter items; The sum of a plurality of cold area target meteorological parameter items is determined to obtain the cold area sub-index.

4. The control method according to claim 2, characterized in that: Obtaining a warning index corresponding to the inversion layer according to the warm area sub-index and the cold area sub-index includes: The sum of the products of the warm area sub-index, the cold area sub-index and the corresponding preset area weight coefficients is determined to obtain a warning index corresponding to the inversion layer.

5. The control method according to claim 1, characterized in that: The plurality of warm zone target meteorological parameters include a warm zone maximum temperature, a warm zone maximum humidity, a warm zone thickness, and a warm zone liquid water content; the preset warm zone meteorological condition is that the warm zone maximum temperature is greater than a preset warm zone maximum temperature threshold, the warm zone maximum humidity is greater than or equal to a preset warm zone maximum humidity threshold, the warm zone thickness is greater than or equal to a preset warm zone thickness threshold, and the warm zone liquid water content is greater than or equal to a preset warm zone liquid water content threshold; The multiple cold zone target meteorological parameters include the cold zone minimum temperature, the cold zone maximum humidity, the cold zone thickness and the cold zone liquid water content. The preset cold zone meteorological conditions are that the cold zone minimum temperature is less than the preset cold zone minimum temperature threshold, the cold zone maximum humidity is greater than or equal to the preset cold zone maximum humidity threshold, the cold zone thickness is greater than or equal to the preset cold zone thickness threshold, and the cold zone liquid water content is greater than or equal to the preset cold zone liquid water content threshold.

6. The control method according to claim 2, characterized in that: The control method further includes: When the warning index is less than the preset warning index threshold, the warm zone sub-index is greater than or equal to the preset warm zone index threshold, the cold zone sub-index is less than the preset cold zone index threshold, and the multiple warm zone target meteorological parameters meet the preset warm zone meteorological conditions, freezing rain prevention and control operations are carried out in the warm zone of the inversion layer.

7. The control method according to claim 2, characterized in that: The control method further includes: When the warning index is less than the corresponding preset warning index threshold, the warm zone sub-index is less than the preset warm zone index threshold, the cold zone sub-index is greater than or equal to the preset cold zone index threshold, and the multiple cold zone target meteorological parameters meet the preset cold zone meteorological conditions, freezing rain prevention and control operations are carried out in the cold zone of the inversion layer.

8. The control method according to claim 1 or 7, characterized in that: Freezing rain prevention and control operations are carried out in the cold area of ​​the inversion layer, including: Adding a refrigeration catalyst to the cold zone of the inversion layer until the temperature of the cold zone of the inversion layer reaches a preset cold zone temperature threshold; Determining a target cold zone volume according to the cold zone thickness and a preset area; determining a target ice nucleation catalyst dosage according to the target cold zone volume, a preset ice crystal concentration, and a preset ice nucleation rate; The target ice nucleation catalyst dosage is added to the cold zone of the inversion layer.

9. A control device for freezing rain prevention operations, characterized in that: include: an acquisition module, configured to acquire, when an inversion layer exists in a target atmospheric region, a plurality of warm-area target meteorological parameters of a warm area of ​​the inversion layer and a plurality of cold-area target meteorological parameters of a cold area of ​​the inversion layer in the target atmospheric region; an early warning index determination module, configured to determine an early warning index corresponding to the inversion layer according to the plurality of warm zone target meteorological parameters and the plurality of cold zone target meteorological parameters; A control module is used to perform freezing rain prevention operations in the warm zone of the inversion layer and the cold zone of the inversion layer when the warning index is greater than or equal to a preset warning index threshold, the multiple warm zone target meteorological parameters meet the preset warm zone meteorological conditions, and the multiple cold zone target meteorological parameters meet the preset cold zone meteorological conditions.

10. The control device according to claim 9, characterized in that: The early warning index determination module is further used for: Obtaining a warm area sub-index according to each of the warm area target meteorological parameters and a corresponding preset warm area target meteorological parameter reference value, wherein the warm area sub-index is positively correlated with each of the warm area target meteorological parameters; Obtaining a cold zone sub-index according to each of the cold zone target meteorological parameters and a corresponding preset cold zone target meteorological parameter reference value, wherein the cold zone sub-index is positively correlated with each of the cold zone target meteorological parameters; An early warning index corresponding to the inversion layer is obtained according to the warm area sub-index and the cold area sub-index.

11. The control device according to claim 10, characterized in that: The early warning index determination module is further used for: determining a ratio of each of the warm-zone target meteorological parameters to a corresponding warm-zone target meteorological parameter reference value to obtain a plurality of warm-zone target meteorological parameter ratios; Determining the product of each of the warm zone target meteorological parameter ratios and the corresponding preset warm zone target meteorological parameter weight coefficients to obtain a plurality of warm zone target meteorological parameter items; determining a sum of a plurality of the warm zone target meteorological parameter items to obtain the warm zone sub-index; According to each of the cold zone target meteorological parameters and the corresponding preset cold zone meteorological reference values, a cold zone sub-index is obtained, including: Determining a ratio of each of the cold zone target meteorological parameters to a corresponding cold zone target meteorological parameter reference value to obtain a plurality of cold zone target meteorological parameter ratios; Determine the product of each of the cold zone target meteorological parameter ratios and the corresponding preset cold zone target meteorological parameter weight coefficient to obtain a plurality of cold zone target meteorological parameter items; The sum of a plurality of cold area target meteorological parameter items is determined to obtain the cold area sub-index.

12. The control device according to claim 10, characterized in that The early warning index determination module is further used for: The sum of the products of the warm area sub-index, the cold area sub-index and the corresponding preset area weight coefficients is determined to obtain a warning index corresponding to the inversion layer.

13. The control device according to claim 9, characterized in that The plurality of warm zone target meteorological parameters include a warm zone maximum temperature, a warm zone maximum humidity, a warm zone thickness, and a warm zone liquid water content; the preset warm zone meteorological condition is that the warm zone maximum temperature is greater than a preset warm zone maximum temperature threshold, the warm zone maximum humidity is greater than or equal to a preset warm zone maximum humidity threshold, the warm zone thickness is greater than or equal to a preset warm zone thickness threshold, and the warm zone liquid water content is greater than or equal to a preset warm zone liquid water content threshold; The multiple cold zone target meteorological parameters include the cold zone minimum temperature, the cold zone maximum humidity, the cold zone thickness and the cold zone liquid water content. The preset cold zone meteorological conditions are that the cold zone minimum temperature is less than the preset cold zone minimum temperature threshold, the cold zone maximum humidity is greater than or equal to the preset cold zone maximum humidity threshold, the cold zone thickness is greater than or equal to the preset cold zone thickness threshold, and the cold zone liquid water content is greater than or equal to the preset cold zone liquid water content threshold.

14. The control device according to claim 10, characterized in that The control module is further configured to: When the warning index is less than the preset warning index threshold, the warm zone sub-index is greater than or equal to the preset warm zone index threshold, the cold zone sub-index is less than the preset cold zone index threshold, and the multiple warm zone target meteorological parameters meet the preset warm zone meteorological conditions, freezing rain prevention and control operations are carried out in the warm zone of the inversion layer.

15. The control device according to claim 10, characterized in that The control module is further configured to: When the warning index is less than the corresponding preset warning index threshold, the warm zone sub-index is less than the preset warm zone index threshold, the cold zone sub-index is greater than or equal to the preset cold zone index threshold, and the multiple cold zone target meteorological parameters meet the preset cold zone meteorological conditions, freezing rain prevention and control operations are carried out in the cold zone of the inversion layer.

16. The control device according to claim 9 or 15, characterized in that: The control module is further configured to: Adding a refrigeration catalyst to the cold zone of the inversion layer until the temperature of the cold zone of the inversion layer reaches a preset cold zone temperature threshold; Determining a target cold zone volume according to the cold zone thickness and a preset area; determining a target ice nucleation catalyst dosage according to the target cold zone volume, a preset ice crystal concentration, and a preset ice nucleation rate; The target ice nucleation catalyst dosage is added to the cold zone of the inversion layer.

17. An electronic device, characterized in that: include: a memory configured to store instructions; as well as A processor is configured to call the instructions from the memory and implement the control method for freezing rain prevention operations according to any one of claims 1 to 8 when executing the instructions.

18. A machine-readable storage medium, characterized in that The machine-readable storage medium stores instructions for enabling a machine to execute the control method for freezing rain prevention operations according to any one of claims 1 to 8.

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