A meteorological monitoring method, device, equipment and medium based on a networked radar

Abstract

An embodiment of the present application discloses a weather monitoring method, device, equipment and medium based on a networked radar, which relates to the technical field of weather monitoring, and includes: obtaining an echo mosaic within the effective monitoring range of the networked radar; if the echo intensity value of the target area is higher than the echo intensity threshold, obtaining the performance parameters of the radar equipment within the effective monitoring range of the networked radar; selecting a target radar equipment from the radar equipment within the effective monitoring range of the networked radar according to the performance parameters; sending an RHI scan scheduling instruction to the target radar equipment so that the target radar equipment performs an RHI scan. Thus, taking the target area within the effective monitoring range of the networked radar as the main body of weather monitoring, when the echo intensity value of the target area is higher than the echo intensity threshold, the most suitable target radar equipment is timely selected to perform an RHI scan for rapid vertical scan weather monitoring, thereby improving the timeliness and accuracy of monitoring potential target weather in the target area.

Description

Technical Field

[0001] The present application relates to the technical field of meteorological monitoring, and particularly to a meteorological monitoring method, device, equipment and medium based on a networked radar. Background Art

[0002] With the development of social economy, major events such as sports events, international conferences, and festival celebrations are increasing day by day. These events often involve a large number of participants, complex event processes, and high investment costs, and changes in meteorological conditions may have a significant impact on the smooth progress of the events. For example, bad weather may have an adverse impact on factors such as transportation, venues, and security, and even affect the smooth progress of the events. Therefore, improving the accuracy of meteorological monitoring has become a key research direction continuously concerned by meteorological departments in our country.

[0003] In related technologies, weather radars are usually used for meteorological monitoring. As an important meteorological observation tool, weather radars mainly focus on strong weather targets such as heavy rain, tornadoes, and hail. These strong weather targets are usually accompanied by strong radar echoes, and the adaptive cooperative observation of networked weather radars can only start radar adaptive scheduling to track strong weather targets after the radar echoes are formed and developed to a certain extent, resulting in limited timeliness of meteorological monitoring. In addition, the occurrence areas of strong weather targets are usually uncertain, which makes it difficult for weather radars to accurately track the occurrence and evolution of strong weather targets in the target area, resulting in limited accuracy of meteorological monitoring. Summary of the Invention

[0004] Based on the above problems, the present application provides a meteorological monitoring method, device, equipment and medium based on a networked radar, which can improve the accuracy and timeliness of meteorological monitoring.

[0005] The embodiments of the present application disclose the following technical solutions:

[0006] In a first aspect, an embodiment of the present application provides a meteorological monitoring method based on a networked radar. The method is applied to a server and includes:

[0007] Obtain an echo mosaic within the effective monitoring range of the networked radar, and the echo intensity value is displayed in the echo mosaic;

[0008] If the echo intensity value of the target area is higher than the echo intensity threshold, obtain the performance parameters of the radar devices within the effective monitoring range of the networked radar, and the target area is within the effective monitoring range of the networked radar;

[0009] Select a target radar device from the radar devices within the effective monitoring range of the networked radar according to the performance parameters, and the target radar device is an X-band weather radar;

[0010] Send a range-height indicator (RHI) scan scheduling instruction to the target radar device so that the target radar device performs an RHI scan according to the RHI scan scheduling instruction.

[0011] Optionally, obtaining the performance parameters of the radar devices within the effective monitoring range of the networked radar includes:

[0012] Obtain the sensitivity of the radar devices within the effective monitoring range of the networked radar according to the echo intensity values within the effective monitoring range of the networked radar;

[0013] Obtain the distance values between the radar devices within the effective monitoring range of the networked radar and the target positions in the target area;

[0014] Obtain the performance parameters of the radar devices within the effective monitoring range of the networked radar according to the sensitivity with the first proportion and the distance values with the second proportion.

[0015] Optionally, selecting a target radar device from the radar devices within the effective monitoring range of the networked radar according to the performance parameters includes:

[0016] Obtain the echo movement direction value of the target weather through the wind profiler radar within the effective monitoring range of the networked radar;

[0017] Among the radar devices within the effective monitoring range of the networked radar, select the radar device with the smallest difference between the performance parameters and the echo movement direction value as the target radar device.

[0018] Optionally, after sending the range-height indicator (RHI) scan scheduling instruction to the target radar device, the method further includes:

[0019] If the echo intensity value of the target area is lower than the echo intensity threshold, send a volume scan instruction to the target radar device so that the target radar device performs a volume scan based on the volume scan instruction.

[0020] Optionally, obtaining the echo mosaic within the effective monitoring range of the networked radar includes:

[0021] Obtain the first original echo intensity value and the second original echo intensity value within the effective monitoring range of the networked radar, where the first original echo intensity value and the second original echo intensity value correspond to different radar devices;

[0022] If there is an overlapping area between the first area corresponding to the first original echo intensity value and the second area corresponding to the second original echo intensity value, perform a fusion process on the first original echo intensity value and the second original echo intensity value based on the weighting method to obtain a fused echo intensity value, and the fused echo intensity value corresponds to the overlapping area;

[0023] Obtain an echo mosaic within the effective monitoring range of the networked radar according to the maximum value of the fused echo intensity values at all altitude levels.

[0024] Optionally, if there is an overlapping area between the first area corresponding to the first original echo intensity value and the second area corresponding to the second original echo intensity value, the fusion process of the first original echo intensity value and the second original echo intensity value based on the weight method includes:

[0025] Perform ground echo separation processing and / or electromagnetic interference echo analysis processing on the first original echo intensity value and the second original echo intensity value to obtain the processed first original echo intensity value and the processed second original echo intensity value;

[0026] If there is an overlapping area between the first area corresponding to the processed first original echo intensity value and the second area corresponding to the processed second original echo intensity value, perform a fusion process on the processed first original echo intensity value and the processed second original echo intensity value based on the weight method.

[0027] Optionally, if there is an overlapping area between the first area corresponding to the first original echo intensity value and the second area corresponding to the second original echo intensity value, the fusion process of the first original echo intensity value and the second original echo intensity value based on the weight method includes:

[0028] If the resolution of the first original echo intensity value is less than the resolution of the second original echo intensity value, perform interpolation processing on the first original echo intensity value based on the nearest neighbor interpolation method to obtain the interpolated first original echo intensity value;

[0029] If there is an overlapping area between the first area corresponding to the interpolated first original echo intensity value and the second area corresponding to the second original echo intensity value, perform a fusion process on the interpolated first original echo intensity value and the second original echo intensity value based on the weight method.

[0030] In a second aspect, an embodiment of the present application provides a meteorological monitoring device based on a networked radar, which is applied to a server. The device includes: an intensity value acquisition module, a parameter acquisition module, a device selection module, and an RHI scanning module;

[0031] The intensity value acquisition module is used to acquire an echo mosaic within the effective monitoring range of the networked radar, and the echo intensity value is displayed in the echo mosaic;

[0032] The parameter acquisition module is configured to acquire the performance parameters of the radar devices within the effective monitoring range of the networked radar if the echo intensity value of the target area is higher than the echo intensity threshold, and the target area is within the effective monitoring range of the networked radar;

[0033] The device selection module is configured to select a target radar device from the radar devices within the effective monitoring range of the networked radar, and the target radar device is an X-band weather radar;

[0034] The RHI scanning module is configured to send a range-height indicator (RHI) scanning scheduling instruction to the target radar device, so that the target radar device performs RHI scanning according to the RHI scanning scheduling instruction.

[0035] Optionally, the parameter acquisition module specifically includes: a first acquisition module, a second acquisition module, and a third acquisition module;

[0036] The first acquisition module is configured to acquire the sensitivity of the radar devices within the effective monitoring range of the networked radar according to the echo intensity value within the effective monitoring range of the networked radar;

[0037] The second acquisition module is configured to acquire the distance value between the radar devices within the effective monitoring range of the networked radar and the target position in the target area;

[0038] The third acquisition module is configured to acquire the performance parameters of the radar devices within the effective monitoring range of the networked radar according to the sensitivity with the first ratio and the distance value with the second ratio.

[0039] Optionally, the device selection module specifically includes: a first selection module and a second selection module;

[0040] The first selection module is configured to acquire the echo movement direction value of the target weather through the wind profiler radar within the effective monitoring range of the networked radar;

[0041] The second selection module is configured to select, from the radar devices within the effective monitoring range of the networked radar, the radar device with the smallest difference between the performance parameters and the echo movement direction value as the target radar device.

[0042] Optionally, the device further includes: a volume scan module;

[0043] The volume scan module is configured to, if the echo intensity value of the target area is lower than the echo intensity threshold, send a volume scan instruction to the target radar device, so that the target radar device performs volume scan based on the volume scan instruction.

[0044] Optionally, the intensity value acquisition module specifically includes: a fourth acquisition module, a fifth acquisition module, and a sixth acquisition module;

[0045] The fourth acquisition module is configured to acquire a first original echo intensity value and a second original echo intensity value within the effective monitoring range of the networking radar, where the first original echo intensity value and the second original echo intensity value correspond to different radar devices;

[0046] The fifth acquisition module is configured to, if there is an overlapping area between a first area corresponding to the first original echo intensity value and a second area corresponding to the second original echo intensity value, perform a fusion process on the first original echo intensity value and the second original echo intensity value based on a weighting method to obtain a fused echo intensity value, where the fused echo intensity value corresponds to the overlapping area;

[0047] The sixth acquisition module is configured to obtain an echo mosaic within the effective monitoring range of the networking radar according to the maximum value of the fused echo intensity value at all altitude levels.

[0048] Optionally, the fifth acquisition module specifically includes: a first acquisition sub-module and a second acquisition sub-module;

[0049] The first acquisition sub-module is configured to perform ground echo separation processing and / or electromagnetic interference echo analysis processing on the first original echo intensity value and the second original echo intensity value to obtain a processed first original echo intensity value and a processed second original echo intensity value;

[0050] The second acquisition sub-module is configured to, if there is an overlapping area between a first area corresponding to the processed first original echo intensity value and a second area corresponding to the processed second original echo intensity value, perform a fusion process on the processed first original echo intensity value and the processed second original echo intensity value based on a weighting method.

[0051] Optionally, the fifth acquisition module specifically includes: a third acquisition sub-module and a fourth acquisition sub-module;

[0052] The third acquisition sub-module is configured to, if the resolution of the first original echo intensity value is less than the resolution of the second original echo intensity value, perform interpolation processing on the first original echo intensity value based on the nearest neighbor interpolation method to obtain an interpolated first original echo intensity value;

[0053] The fourth acquisition sub-module is configured to, if there is an overlapping area between a first area corresponding to the interpolated first original echo intensity value and a second area corresponding to the second original echo intensity value, perform a fusion process on the interpolated first original echo intensity value and the second original echo intensity value based on a weighting method.

[0054] In a third aspect, an embodiment of the present application provides a weather monitoring device based on a networked radar, including: a memory and a processor;

[0055] The memory is used to store programs;

[0056] The processor is used to execute the program to implement each step of the method described in the first aspect.

[0057] In a fourth aspect, an embodiment of the present application provides a computer storage medium, on which a computer program is stored. It is characterized in that when the computer program is executed by a processor, each step of the method described in the first aspect is implemented.

[0058] Compared with the prior art, the present application has the following beneficial effects:

[0059] The present application provides a weather monitoring method, device, equipment and medium based on a networked radar. The method includes: obtaining an echo mosaic within the effective monitoring range of the networked radar, and the echo intensity value is displayed in the echo mosaic; if the echo intensity value of the target area is higher than the echo intensity threshold, obtain the performance parameters of the radar devices within the effective monitoring range of the networked radar, and the target area is within the effective monitoring range of the networked radar; according to the performance parameters, select a target radar device from the radar devices within the effective monitoring range of the networked radar, and the target radar device is an X-band weather radar; send a range-height-indicator (RHI) scan scheduling instruction to the target radar device so that the target radar device performs an RHI scan according to the RHI scan scheduling instruction. Thus, taking the target area within the effective monitoring range of the networked radar as the main body of weather monitoring, when the echo intensity value of the target area is higher than the echo intensity threshold, the most suitable target radar device can be selected in time for RHI scan to perform rapid vertical scan weather monitoring, thereby improving the timeliness and accuracy of monitoring potential target weather in the target area. Description of the Drawings

[0060] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0061] Figure 1 It is a flowchart of a weather monitoring method based on a networked radar provided by an embodiment of the present application;

[0062] Figure 2 It is a schematic diagram of a weather monitoring device based on a networked radar provided by an embodiment of the present application. Detailed Embodiments

[0063] With the vigorous development of the social economy, various major events such as sports events, international conferences, and festival celebrations are held more and more frequently. These events not only attract a large number of participants, but also involve complex activity processes and high investment costs. Against this background, the change of meteorological conditions has had an unprecedented impact on the smooth progress of the events. Severe weather, such as heavy rain, strong wind, lightning, hail, etc., may all have an adverse impact on key factors such as transportation, venue, and security. In severe cases, it may even lead to the cancellation or postponement of the event. Therefore, in order to ensure the smooth progress of these major events, it is particularly important to improve the accuracy of meteorological monitoring. This is not only related to the success or failure of the event, but also directly related to the safety of the participants and the economic benefits of the event.

[0064] In related technologies, weather radars are usually used for meteorological monitoring. As an important meteorological observation tool, weather radars mainly focus on strong weather targets such as heavy rain, tornadoes, and hail. These strong weather targets are usually accompanied by strong radar echoes. Therefore, collaborative observation of adaptive networking weather radars will start to track strong weather targets after the radar echoes are formed and developed to a certain extent. This means that in the initial stage of the formation of strong weather targets in the target area, the weather radar may not be able to capture them, resulting in the lag of meteorological observation and limiting the timeliness of meteorological monitoring. In addition, the occurrence area of strong weather targets is usually uncertain, which makes it difficult for weather radars to accurately track the occurrence and evolution of strong weather targets in the target area, also limiting the accuracy of meteorological monitoring.

[0065] After research, the inventor proposed a meteorological monitoring method, device, equipment, and medium based on networking radars. The method includes: obtaining an echo mosaic within the effective monitoring range of the networking radars, and the echo intensity value is displayed in the echo mosaic; if the echo intensity value in the target area is higher than the echo intensity threshold, obtaining the performance parameters of the radar devices within the effective monitoring range of the networking radars, and the target area is within the effective monitoring range of the networking radars; according to the performance parameters, selecting a target radar device from the radar devices within the effective monitoring range of the networking radars, and the target radar device is an X-band weather radar; sending a range-height-indicator (RHI) scan scheduling instruction to the target radar device so that the target radar device performs an RHI scan according to the RHI scan scheduling instruction. Thus, taking the target area within the effective monitoring range of the networking radars as the main body of meteorological monitoring, when the echo intensity value in the target area is higher than the echo intensity threshold, the most suitable target radar device can be selected in a timely manner to perform an RHI scan for rapid vertical scan meteorological monitoring, thereby improving the timeliness and accuracy of monitoring potential target weather in the target area.

[0066] To enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solution in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application.

[0067] See Figure 1 , which is a flowchart of a weather monitoring method based on a networked radar provided by an embodiment of this application. This method is applied to a server and includes:

[0068] S101: Obtain radar data in the S-band, C-band, and X-band of the networked radar.

[0069] The networked radar refers to a collaborative detection radar network formed by linking multiple radar devices with different frequency bands, different operating modes, and different polarization methods through communication means and uniformly dispatching them by a central station. Among them, the radar devices in the networked radar include weather radars, wind profilers, sounding radars, etc. For specific radar devices and the number of radar devices in the networked radar, this application does not make any limitations.

[0070] The S-band of the radar refers to the electromagnetic wave frequency band with a frequency of 2 - 4 GHz, the C-band of the radar refers to the electromagnetic wave frequency band with a frequency of 4 - 8 GHz, and the X-band of the radar refers to the electromagnetic wave frequency band with a frequency of 8 - 12 GHz.

[0071] Radar data refers to the data obtained by detecting weather targets such as heavy rain, tornadoes, and hailstones through the radar devices in the networked radar, such as echo intensity, etc. Among them, the echo intensity refers to the signal intensity returned to the radar after the electromagnetic wave emitted by the radar interacts with the target object.

[0072] It should be noted that after obtaining the radar data, it is also necessary to verify the integrity of the radar data, that is, perform an integrity check. The integrity check of radar data refers to ensuring that all common data blocks and radial data blocks in the radar data exist, without omission and without data being truncated or damaged, for subsequent data processing, analysis, and interpretation.

[0073] In some specific implementation manners, the data structure of the radar data is usually as shown in Table 1 below. If the integrity check of the radar data passes, then step S102 is executed.

[0074] Table 1

[0075]

[0076]

[0077] S102: Perform quality control processing on the radar data to obtain the quality-controlled radar data.

[0078] Quality control refers to the processing of inspecting, evaluating, and correcting radar data to ensure the accuracy and reliability of the data.

[0079] In some specific implementation manners, the quality control processing includes performing ground clutter echo separation processing on the radar data. Ground clutter echo refers to the radar signal reflected by ground objects (such as buildings, mountains, trees, etc.) to the radar device, rather than the signal reflected by meteorological targets (such as rain, snow, hail, etc.) to the radar device. Ground clutter echoes are usually stronger and more stable than meteorological echoes. If the ground clutter echo separation processing is not performed on the radar data, the ground clutter echo may cover or interfere with the meteorological echo, thereby affecting the accurate monitoring and analysis of meteorological conditions by the radar device.

[0080] In some examples, the ground clutter echo separation processing can be performed on the radar data through an identification algorithm based on intensity threshold or polarization parameters. Specifically, this method requires setting an intensity or polarization parameter threshold, and regarding the echo signal with the intensity or polarization parameter outside the defined threshold as the ground clutter echo. In some other examples, the ground clutter echo separation processing can be performed on the radar data through an identification algorithm based on velocity characteristics. Specifically, ground clutter echoes usually have a fixed velocity, or the velocity change range is small, while meteorological echoes may have a large velocity change. Therefore, the ground clutter echo can be identified by analyzing the velocity characteristics of the echo.

[0081] In some other specific implementation manners, the quality control processing further includes performing electromagnetic interference echo separation processing on the radar data. Electromagnetic interference echo separation refers to identifying and removing the false echoes caused by electromagnetic interference from the echo signals of the radar data. These interference echoes may come from various electromagnetic sources in the environment, such as radio communication, electronic devices, other radar systems, etc.

[0082] In some examples, the echo signal and the false echo signal (i.e., interference echo) can be distinguished by analyzing parameters such as the spectrum, time-domain waveform, and polarization characteristics of the echo signal. Once the false echo signal is identified, appropriate measures need to be taken to suppress or remove the false echo signal, such as performing filtering, space-time adaptive processing (STAP), beamforming and other methods for processing.

[0083] S103: Perform coordinate transformation processing on the quality-controlled radar data to obtain the transformed radar data.

[0084] Coordinate transformation processing refers to the process of converting different radar data from different radar devices in a networked radar from their respective original coordinate systems to a unified coordinate system. This is because due to the different angles, distances, and resolutions of the radar devices for meteorological detection, there may be differences between the coordinate systems of different radar devices. By performing coordinate transformation processing, these differences can be eliminated, enabling different radar data to be compared and analyzed in the same coordinate system.

[0085] S104: If the resolutions of multiple transformed radar data are inconsistent, interpolation is performed based on the nearest neighbor interpolation method to obtain interpolated radar data.

[0086] The nearest neighbor interpolation method is an interpolation method used to handle the problem of inconsistent resolutions between different transformed radar data. When the resolutions of two transformed radar data are different, for each point (referred to as the target point) in the low-resolution data, the point with the closest distance (referred to as the nearest neighbor point) in the high-resolution data needs to be found. This is usually achieved by comparing the Euclidean distance between the target point and each point in the high-resolution data. Subsequently, the value of the nearest neighbor point is directly assigned to the target point. In this way, each point in the low-resolution data is assigned a new value, namely nearest neighbor interpolation.

[0087] Through the nearest neighbor interpolation method, the resolutions of different transformed radar data can be adjusted to be consistent in space, providing conditions for subsequent data fusion.

[0088] It should be noted that if the resolution difference between the low-resolution data and the high-resolution data is too large, more complex interpolation methods, such as bilinear interpolation or bicubic interpolation, may need to be considered. This application does not make any limitations in this regard.

[0089] S105: If there are overlapping regions in the interpolated radar data, the interpolated radar data is fused based on the weight method to obtain fused radar data.

[0090] When the regions covered by multiple interpolated radar data are the same, the radar data in these regions will overlap. Therefore, based on the weight method, the interpolated radar data in the overlapping regions needs to be fused. The weight method is a data fusion method that assigns different weights to each interpolated radar data according to its reliability and quality, and calculates the fusion result based on these weights to obtain fused radar data.

[0091] Thus, by fusing and processing the data in the overlapping area through the weighting method, the information of multiple interpolated radar data can be comprehensively utilized, improving the reliability and accuracy of the data. At the same time, this method can also reduce the errors and uncertainties that may exist in a single data.

[0092] It should be noted that the above steps S102 to S105 are all optional steps, and one or more of them can be selected for execution in actual applications.

[0093] S106: Select the echo intensity values at each altitude layer in the fused radar data, and display the echo mosaic within the effective monitoring range of the networked radar.

[0094] Extract the echo intensity values at each altitude layer in the fused radar data respectively, and combine the maximum echo intensity values at each altitude layer to generate an echo mosaic of the atmospheric space within the effective monitoring range of the entire networked radar.

[0095] Thus, the generated echo mosaic can be analyzed to identify strong reflectivity areas (i.e., areas with larger echo intensities) or specific target areas, which are usually related to convective activities, precipitation events or other atmospheric phenomena. According to the analysis results, the atmospheric conditions and weather conditions within the effective monitoring range of the networked radar can be further understood.

[0096] S107: Determine whether the echo intensity value of the target area within the effective monitoring range of the networked radar is higher than the echo intensity threshold. If so, execute S108; if not, execute S101.

[0097] In some specific implementation manners, the target area in the echo mosaic can be selected through a Geographic Information System (GIS). It should be noted that the target area can be a circular area, a square area or an irregular area, etc. The present application does not make any limitation in this regard.

[0098] Subsequently, obtain the echo intensity value of the target area in the echo mosaic. In some specific implementation manners, to ensure the accuracy of the obtained echo intensity value, the center point of the target area can be set as the center of the circle, and a guarantee radius can be set. The guarantee radius will determine how far to expand outward from the center point to obtain the echo intensity value. Then, based on the center point coordinates and the guarantee radius, a circular area is extracted from the echo mosaic, and the echo intensity value in this circular area is obtained. It should be noted that the guarantee radius can be 10 kilometers, 20 kilometers, etc. The present application does not make any limitation on the specific guarantee radius.

[0099] It should be noted that the echo intensity threshold can be 5 dBZ, 18 dBZ, etc. The echo intensity threshold may vary due to different studies, regions, or climate conditions. This application does not make any limitations in this regard.

[0100] S108: Obtain the sensitivity of the X-band weather radar device in the networked radar.

[0101] Based on the radar base data, the distribution of the echo intensity of the X-band weather radar within the effective monitoring range of the networked radar with respect to distance can be obtained, that is, perform echo-distance distribution statistics. Subsequently, according to the characteristics of the echo-distance distribution, select a suitable fitting model (such as linear, exponential, etc.), and use the least squares method to perform curve fitting on the selected model, so as to extract the sensitivity of the X-band radar device from the fitted curve. Generally speaking, the echo intensity value corresponding to 50 KM is selected as the sensitivity of the X-band radar.

[0102] S109: Obtain the performance parameters of the X-band weather radar device in the networked radar.

[0103] After obtaining the sensitivity of the X-band weather radar device within the effective monitoring range of the networked radar, it is also necessary to obtain the distance values between the radar device and the target positions in the target area within the effective monitoring range of the networked radar. Subsequently, according to the sensitivity with the first weight and the distance value with the second weight, determine the performance parameters of the radar device. In some specific implementation manners, the performance parameters of the radar device can be determined according to the sensitivity with a weight of 0.6 and the distance value with a weight of 0.4. This application does not make any limitations on the specific weights.

[0104] S110: Select the radar device with the smallest difference between the performance parameters and the echo movement direction parameters of the target weather as the target radar device.

[0105] The echo movement direction parameter refers to the movement direction of the radar echo signal displayed on the radar screen. By analyzing the movement trajectory of the echo signal, the movement direction and speed of the target weather can be determined, so as to judge the type and nature of the target weather.

[0106] S111: Send an RHI scan scheduling instruction to the target radar device to enable the target radar device to perform an RHI scan.

[0107] Range Height Indicator (RHI) is a specific radar display mode that can provide information on the distance and height dimensions of the target weather, helping the operator to more accurately understand the position and movement trajectory of the target weather. The RHI scan is mainly used to display the change in the number of echoes with height at a certain azimuth angle, so as to conveniently display the height distribution information of the target weather.

[0108] In some specific implementation manners, after the processor sends an RHI scan scheduling instruction to the target radar device, it may continuously determine whether the echo intensity value of the target area is lower than the echo intensity threshold. If so (i.e., when the echo in the target area dissipates), a volume scan instruction is sent to the target radar device, so that the target radar device performs a volume scan according to the volume scan instruction.

[0109] In summary, the embodiment of the present application provides a weather monitoring method based on a networked radar. The method includes: obtaining an echo mosaic within the effective monitoring range of the networked radar, where the echo intensity value is displayed in the echo mosaic; if the echo intensity value of the target area is higher than the echo intensity threshold, obtaining the performance parameters of the radar devices within the effective monitoring range of the networked radar, where the target area is within the effective monitoring range of the networked radar; selecting a target radar device from the radar devices within the effective monitoring range of the networked radar according to the performance parameters, where the target radar device is an X-band weather radar; and sending a range-height indicator (RHI) scan scheduling instruction to the target radar device, so that the target radar device performs an RHI scan according to the RHI scan scheduling instruction. Thus, the target area within the effective monitoring range of the networked radar is used as the main body of weather monitoring. When the echo intensity value of the target area is higher than the echo intensity threshold, the most suitable target radar device can be selected in a timely manner to perform an RHI scan for rapid vertical scan weather monitoring, thereby improving the timeliness and accuracy of monitoring potential target weather in the target area.

[0110] See Figure 2 , which is a schematic diagram of a weather monitoring device for a networked radar provided by an embodiment of the present application. The weather monitoring device 200 for the networked radar is applied to a server and includes an intensity value acquisition module 201, a parameter acquisition module 202, a device selection module 203, and an RHI scan module 204.

[0111] The intensity value acquisition module 201 is configured to obtain an echo mosaic within the effective monitoring range of the networked radar, where the echo intensity value is displayed in the echo mosaic;

[0112] The parameter acquisition module 202 is configured to, if the echo intensity value of the target area is higher than the echo intensity threshold, obtain the performance parameters of the radar devices within the effective monitoring range of the networked radar, where the target area is within the effective monitoring range of the networked radar;

[0113] The device selection module 203 is configured to select a target radar device from the radar devices within the effective monitoring range of the networked radar, where the target radar device is an X-band weather radar;

[0114] The RHI scan module 204 is configured to send a range-height indicator (RHI) scan scheduling instruction to the target radar device, so that the target radar device performs an RHI scan according to the RHI scan scheduling instruction.

[0115] In some specific implementation manners, the parameter acquisition module 202 specifically includes: a first acquisition module, a second acquisition module, and a third acquisition module;

[0116] The first acquisition module is configured to acquire the sensitivity of the radar devices within the effective monitoring range of the networking radar according to the echo intensity values within the effective monitoring range of the networking radar;

[0117] The second acquisition module is configured to acquire the distance values between the radar devices within the effective monitoring range of the networking radar and the target positions in the target area;

[0118] The third acquisition module is configured to acquire the performance parameters of the radar devices within the effective monitoring range of the networking radar according to the sensitivity with a first ratio and the distance values with a second ratio.

[0119] In some specific implementation manners, the device selection module 203 specifically includes: a first selection module and a second selection module;

[0120] The first selection module is configured to acquire the echo movement direction value of the target weather through the wind profiler radar within the effective monitoring range of the networking radar;

[0121] The second selection module is configured to select, from the radar devices within the effective monitoring range of the networking radar, the radar device with the smallest difference between the performance parameters and the echo movement direction value as the target radar device.

[0122] In some specific implementation manners, the meteorological monitoring device 200 of the networking radar further includes: a volume scan module;

[0123] The volume scan module is configured to, if the echo intensity value of the target area is lower than the echo intensity threshold, send a volume scan instruction to the target radar device, so that the target radar device performs a volume scan based on the volume scan instruction.

[0124] In some specific implementation manners, the intensity value acquisition module 201 specifically includes: a fourth acquisition module, a fifth acquisition module, and a sixth acquisition module;

[0125] The fourth acquisition module is configured to acquire a first original echo intensity value and a second original echo intensity value within the effective monitoring range of the networking radar, and the first original echo intensity value and the second original echo intensity value correspond to different radar devices;

[0126] The fifth acquisition module is configured to, if there is an overlapping area between a first area corresponding to the first original echo intensity value and a second area corresponding to the second original echo intensity value, perform a fusion process on the first original echo intensity value and the second original echo intensity value based on the weighting method to obtain a fused echo intensity value, and the fused echo intensity value corresponds to the overlapping area;

[0127] A sixth acquisition module, configured to obtain an echo mosaic within the effective monitoring range of the networked radar according to the maximum value of the fused echo intensity values at all altitude levels.

[0128] In some specific implementation manners, the fifth acquisition module specifically includes: a first acquisition sub-module and a second acquisition sub-module;

[0129] The first acquisition sub-module is configured to perform ground clutter echo separation processing and / or electromagnetic interference echo analysis processing on the first original echo intensity value and the second original echo intensity value, so as to obtain the processed first original echo intensity value and the processed second original echo intensity value;

[0130] The second acquisition sub-module is configured to, if there is an overlapping area between the first area corresponding to the processed first original echo intensity value and the second area corresponding to the processed second original echo intensity value, perform fusion processing on the processed first original echo intensity value and the processed second original echo intensity value based on the weighting method.

[0131] In some specific implementation manners, the fifth acquisition module specifically includes: a third acquisition sub-module and a fourth acquisition sub-module;

[0132] The third acquisition sub-module is configured to, if the resolution of the first original echo intensity value is less than the resolution of the second original echo intensity value, perform interpolation processing on the first original echo intensity value based on the nearest neighbor interpolation method to obtain the interpolated first original echo intensity value;

[0133] The fourth acquisition sub-module is configured to, if there is an overlapping area between the first area corresponding to the interpolated first original echo intensity value and the second area corresponding to the second original echo intensity value, perform fusion processing on the interpolated first original echo intensity value and the second original echo intensity value based on the weighting method.

[0134] In summary, the embodiment of the present application provides a meteorological monitoring device based on a networked radar. The device takes the target area within the effective monitoring range of the networked radar as the main body of meteorological monitoring. When the echo intensity value of the target area is higher than the echo intensity threshold, the most suitable target radar device can be selected in a timely manner for RHI scanning to perform meteorological monitoring of rapid vertical scanning, thereby improving the timeliness and accuracy of monitoring potential target weather in the target area.

[0135] The embodiment of the present application also provides a corresponding generating device and a computer storage medium for implementing the solution provided by the embodiment of the present application.

[0136] Wherein, the device includes a memory and a processor. The memory is used to store instructions or codes, and the processor is used to execute the instructions or codes so that the device executes a file search method according to any embodiment of the present application.

[0137] Code is stored in a computer storage medium. When the code is run, the device running the code implements the method of any embodiment of the present application.

[0138] In the embodiments of the present application, the "first", "second" (if any) in names such as "first" and "second" are only used as name identifiers and do not represent the first and second in order.

[0139] From the description of the above embodiments, it can be clearly understood by the operation and maintenance personnel in the art that all or part of the steps in the above embodiment methods can be implemented by means of software plus a general hardware platform. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as a read-only memory (ROM) / RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network communication device such as a router) to execute the methods of each embodiment or some parts of the embodiments of the present application.

[0140] It should be noted that the embodiments in this specification are all described in a progressive manner. The same or similar parts between the embodiments can be referred to each other, and the key points of each embodiment are the differences from other embodiments. In particular, for the device and device embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments. The device and device embodiments described above are only illustrative. The units described as separate components may or may not be physically separated, and the components described as unit prompts may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary operation and maintenance personnel in the art can understand and implement it without creative work.

[0141] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any change or replacement that can be easily thought of by those operation and maintenance personnel familiar with the technical field of the present application within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A meteorological monitoring method based on networked radar, characterized in that: Applied to a server, the method comprises: Acquire an echo puzzle within the effective monitoring range of the networked radar, wherein the echo puzzle displays an echo intensity value; If the echo intensity value of the target area is higher than the echo intensity threshold, the performance parameters of the radar equipment within the effective monitoring range of the networked radar are obtained, and the target area is within the effective monitoring range of the networked radar; Obtaining the echo moving direction value of the target weather through the wind profiler radar within the effective monitoring range of the networked radar; Among the radar devices within the effective monitoring range of the networked radar, a radar device having the smallest difference between the performance parameter and the echo moving direction value is selected as a target radar device, wherein the target radar device is an X-band weather radar; A range height display (RHI) scan scheduling instruction is sent to the target radar device, so that the target radar device performs the RHI scan according to the RHI scan scheduling instruction.

2. The method according to claim 1, characterized in that The obtaining of performance parameters of radar equipment within the effective monitoring range of the networked radar includes: According to the echo intensity value within the effective monitoring range of the networked radar, the sensitivity of the radar device within the effective monitoring range of the networked radar is obtained; Obtaining a distance value between a radar device within an effective monitoring range of the networked radar and a target position in the target area; According to the sensitivity of the first specific gravity and the distance value of the second specific gravity, performance parameters of radar equipment within the effective monitoring range of the networked radar are obtained.

3. The method according to claim 1, characterized in that After sending the range height display (RHI) scanning scheduling instruction to the target radar device, the method further includes: If the echo intensity value of the target area is lower than the echo intensity threshold, a volume scan instruction is sent to the target radar device, so that the target radar device performs a volume scan based on the volume scan instruction.

4. The method according to claim 1, characterized in that: The step of obtaining an echo puzzle within the effective monitoring range of the networked radar includes: Acquire a first original echo intensity value and a second original echo intensity value within an effective monitoring range of the networked radar, wherein the first original echo intensity value and the second original echo intensity value correspond to different radar devices; If there is an overlapping area between a first area corresponding to the first original echo intensity value and a second area corresponding to the second original echo intensity value, fusing the first original echo intensity value and the second original echo intensity value based on a weighting method to obtain a fused echo intensity value, wherein the fused echo intensity value corresponds to the overlapping area; According to the maximum value of the fused echo intensity value at all altitude layers, the echo puzzle within the effective monitoring range of the networked radar is obtained.

5. The method according to claim 4, characterized in that If there is an overlapping area between a first area corresponding to the first original echo intensity value and a second area corresponding to the second original echo intensity value, fusing the first original echo intensity value and the second original echo intensity value based on a weighting method, comprising: Performing ground object echo separation processing and / or electromagnetic interference echo analysis processing on the first original echo intensity value and the second original echo intensity value to obtain a processed first original echo intensity value and a processed second original echo intensity value; If there is an overlapping area between the first area corresponding to the processed first original echo intensity value and the second area corresponding to the processed second original echo intensity value, the processed first original echo intensity value and the processed second original echo intensity value are fused based on a weighting method.

6. The method according to claim 4, characterized in that If there is an overlapping area between a first area corresponding to the first original echo intensity value and a second area corresponding to the second original echo intensity value, fusing the first original echo intensity value and the second original echo intensity value based on a weighting method, comprising: If the resolution of the first original echo intensity value is smaller than the resolution of the second original echo intensity value, interpolating the first original echo intensity value based on the nearest neighbor interpolation method to obtain an interpolated first original echo intensity value; If there is an overlapping area between a first area corresponding to the interpolated first original echo intensity value and a second area corresponding to the second original echo intensity value, the interpolated first original echo intensity value and the second original echo intensity value are fused based on a weighting method.

7. A meteorological monitoring device based on networked radar, characterized in that: Applied to a server, the device comprises: an intensity value acquisition module, a parameter acquisition module, a first selection module, a second selection module and an RHI scanning module; The intensity value acquisition module is used to acquire an echo puzzle within the effective monitoring range of the networked radar, and the echo strength value is displayed in the echo puzzle; The parameter acquisition module is used to acquire the performance parameters of the radar equipment within the effective monitoring range of the networked radar if the echo intensity value of the target area is higher than the echo intensity threshold, and the target area is within the effective monitoring range of the networked radar; The first selection module is used to obtain the echo moving direction value of the target weather through the wind profiler radar within the effective monitoring range of the networked radar; The second selection module is used to select, from radar devices within the effective monitoring range of the networked radar, a radar device having a minimum difference between the performance parameter and the echo moving direction value as a target radar device, wherein the target radar device is an X-band weather radar; The RHI scanning module is used to send a range height display RHI scanning scheduling instruction to the target radar device, so that the target radar device performs RHI scanning according to the RHI scanning scheduling instruction.

8. A meteorological monitoring device based on networked radar, characterized in that: include: Memory and processor; The memory is used to store programs; The processor is used to execute the program to implement each step of the method according to any one of claims 1 to 6.

9. A computer storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, each step of the method according to any one of claims 1 to 6 is implemented.

Images