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CN-121786765-B - Wind shear scene reproduction method and system based on multi-source data fusion

CN121786765BCN 121786765 BCN121786765 BCN 121786765BCN-121786765-B

Abstract

The invention provides a wind shear scene reproduction method and a system based on multi-source data fusion, which relate to the technical field of meteorological data processing, and are used for firstly acquiring multi-source wind shear dynamic data of different mobile acquisition carriers in a wind shear influence area; the method comprises the steps of carrying out cross-carrier data track anchoring based on dynamic evolution characteristics to form a data track set, mining scene symbiotic elements and dynamically adapting and mapping with track data to generate element track mapping bodies, carrying out dynamic association information superposition on the element track mapping bodies in a multi-source data progressive fusion mode to form wind shear evolution fusion characterization, constructing a scene apparent restoration link based on the wind shear evolution fusion characterization, dynamically representing a complete evolution process from occurrence to dissipation of wind shear through the scene apparent restoration link, and outputting a wind shear reproduction scene. The invention improves the accuracy and the comprehensiveness of wind shear scene reproduction.

Inventors

  • CHEN WEIHUA
  • TONG YAO
  • LI YONGJUN
  • ZHEN KE
  • REN YI
  • JIANG XIA

Assignees

  • 中国民用航空飞行学院

Dates

Publication Date
20260512
Application Date
20260309

Claims (10)

  1. 1. A method for wind shear scene reproduction based on multi-source data fusion, the method comprising: acquiring multi-source wind shear dynamic data, wherein the multi-source wind shear dynamic data is an original dynamic observation data set recorded in real time by different mobile acquisition carriers in a wind shear influence area; anchoring the multi-source wind shear dynamic data across carrier data tracks based on the dynamic evolution characteristic of wind shear to form a wind shear data track set, wherein the wind shear data track set is an associated track sequence showing the evolution of data along with wind shear; digging wind shear scene symbiotic elements, and dynamically adapting and mapping track data in the wind shear data track set and the wind shear scene symbiotic elements to generate an element track mapping body; The element track mapping body is subjected to dynamic association information superposition in a multi-source data progressive fusion mode to form a wind shear evolution fusion representation; and constructing a scene artifact restoring link based on the wind shear evolution fusion characterization, dynamically presenting a complete evolution process of wind shear from occurrence to dissipation through the scene artifact restoring link, and outputting a wind shear reproduction scene.
  2. 2. The multi-source data fusion-based wind shear scene reproduction method of claim 1, wherein the anchoring the multi-source wind shear dynamic data across carrier data tracks based on the dynamic evolution characteristics of wind shear to form a set of wind shear data tracks comprises: distinguishing the attribute of a mobile acquisition carrier of multi-source wind shear dynamic data, and extracting to obtain an evolution time characteristic and a spatial displacement characteristic in the dynamic data corresponding to each mobile acquisition carrier, wherein the evolution time characteristic is time sequence information of data records, and the spatial displacement characteristic is continuous change information of data acquisition positions; Based on a dynamic evolution rule from generation to diffusion to dissipation of wind shear, extracting track anchoring reference conditions among different mobile acquisition carrier data, wherein the track anchoring reference conditions are corresponding relations of wind shear evolution phases capable of being related to different carrier data; Intercepting dynamic data fragments corresponding to a specific evolution stage of wind shear from dynamic data of each mobile acquisition carrier according to the track anchoring reference conditions, wherein the dynamic data fragments are continuous data records capable of reflecting wind shear characteristics of the evolution stage; Extracting key evolution node information in each dynamic data segment, wherein the key evolution node information is recorded content corresponding to a time point and a space point of marked wind shear characteristic significant change; Establishing associated track lines among dynamic data segments corresponding to different mobile acquisition carriers by taking key evolution node information as anchor points, wherein the associated track lines are logic paths for connecting key nodes of the data segments of the different carriers; Integrating all the associated track lines with the corresponding dynamic data segments to form a preliminary track set covering the wind shear full evolution stage; based on the dynamic evolution continuity of wind shear, the relevance of the absent evolution nodes in the preliminary track set is supplemented, so that each dynamic data segment forms a continuous through track network through the relevant track line, and finally the wind shear data track set is formed.
  3. 3. The multi-source data fusion-based wind shear scene reproduction method of claim 1, wherein the mining of wind shear scene symbiotic elements dynamically adapts mapping trajectory data in the wind shear data trajectory set with the wind shear scene symbiotic elements to generate element trajectory mappings comprising: Digging wind shear scene symbiotic factors which synchronously change and mutually influence with wind shear evolution by analyzing the interaction process of wind shear and surrounding environment, wherein the wind shear scene symbiotic factors comprise an airflow speed change factor, an air pressure distribution factor, a temperature gradient factor, a humidity distribution factor and an air density change factor; Carrying out dynamic feature disassembly on each wind shear scene symbiotic element to obtain the change dimension of each wind shear scene symbiotic element in different evolution stages of wind shear, wherein the change dimension is a specific aspect for reflecting the change of the wind shear scene symbiotic element along with the wind shear evolution; based on the change dimension of the symbiotic elements of each wind shear scene, establishing element dynamic description specifications, wherein the element dynamic description specifications are expression standards for unifying the change characteristics of each symbiotic element in different evolution stages; analyzing track data in the wind shear data track set, and extracting dynamic data items which can correspond to the variation dimension of the symbiotic element in the track data, wherein the dynamic data items are specific data contents for recording the variation of the symbiotic element in the track data; according to the element dynamic description specification, performing staged adaptation on the extracted dynamic data items, the corresponding wind shear scene symbiotic elements and the change dimension, and establishing the corresponding relation between the data and the elements in different evolution stages; classifying and integrating dynamic data items corresponding to each wind shear scene symbiotic element in each evolution stage to form a staged data set of the symbiotic element, wherein the staged data set comprises all dynamic data items of the wind shear scene symbiotic element in each evolution stage of wind shear; And binding the staged data sets of all the symbiotic elements with the corresponding wind shear data tracks to form an element track mapping body containing dynamic corresponding relations of the elements, the data and the evolution stage.
  4. 4. The wind shear scene reproduction method based on multi-source data fusion according to claim 1, wherein the step of performing dynamic association information superposition on the element track mapping body in a multi-source data progressive fusion manner to form a wind shear evolution fusion characterization includes: Analyzing the element track mapping body, separating dynamic data items corresponding to different mobile acquisition carriers, and defining wind shear scene symbiotic elements, change dimensionality and evolution stages to which each dynamic data item belongs; Analyzing information complementary dimensions of dynamic data items of different mobile acquisition carriers corresponding to the same symbiotic element in the same evolution stage, and determining an information complementary direction of each dynamic data item when describing element characteristics of the evolution stage; constructing a multi-source data progressive fusion rule based on an information supplementing direction, wherein the progressive fusion rule is a logic criterion for guiding different carrier data items to be gradually integrated according to an evolution stage; according to the progressive fusion rule, information superposition is carried out on different carrier dynamic data items corresponding to all symbiotic elements of the first evolution stage of wind shear, so as to form comprehensive dynamic description of each symbiotic element of the first evolution stage; the comprehensive dynamic description of the first evolution stage is taken as a basis, different carrier dynamic data items of the next evolution stage are overlapped to form a cross-stage element dynamic evolution description, and the cross-stage element dynamic evolution description is used for reflecting the change process of elements from the first stage to the next stage; Sequentially completing progressive superposition of dynamic data items in all evolution stages to form complete dynamic evolution description of symbiotic elements of each wind shear scene, wherein the dynamic evolution description covers continuous change characteristics of the elements in the wind shear full evolution process; and carrying out association integration on the complete dynamic evolution descriptions of all the symbiotic elements according to the evolution logic of the wind shear to form a wind shear evolution fusion representation for reflecting the dynamic change and interaction of each element in the wind shear evolution process.
  5. 5. The multi-source data fusion based wind shear scene reproduction method of claim 1, wherein the constructing a scene representation restoration link based on the wind shear evolution fusion characterization dynamically presents a complete evolution process of wind shear from occurrence to dissipation through the scene representation restoration link, and outputting a wind shear reproduction scene, comprising: Analyzing the wind shear evolution fusion characterization, and extracting complete dynamic evolution descriptions of all symbiotic elements contained in the wind shear evolution fusion characterization and interaction information among the elements; Dividing progressive stages of scene image restoration based on a natural evolution sequence of wind shear, wherein the progressive stages are scene presentation links which are in one-to-one correspondence with the wind shear evolution stages; distributing complete dynamic evolution description and element interaction information in wind shear evolution fusion characterization according to progressive stages, and determining dynamic characteristic information corresponding to each restoring stage; Converting dynamic characteristic information corresponding to each restoring stage into scene visualization data, wherein the scene visualization data are specific characteristic records which can be directly converted into visual scene elements and comprise element change details, space distribution states and time evolution rhythms; Continuously linking scene visualization data of each stage according to the sequence of progressive stages to form a scene restoration data stream, wherein the scene restoration data stream is a scene visualization data sequence of each stage arranged according to the wind shear evolution sequence; Based on the scene restoration data flow, constructing a scene avatar restoration link capable of carrying data transmission and realizing dynamic presentation, wherein the scene avatar restoration link is a presentation path for connecting progressive stages in series and realizing dynamic data circulation; And sequentially transmitting scene visualization data of each stage through the scene visualization restoring link, dynamically presenting the wind shear scene characteristics of each progressive stage, completely restoring the evolution process from occurrence to dissipation of wind shear, and outputting a wind shear reproduction scene.
  6. 6. The wind shear scene reproduction method based on multi-source data fusion according to claim 2, wherein the establishing a correlation trajectory between dynamic data segments corresponding to different mobile acquisition carriers by using key evolution node information as an anchor point comprises: Extracting features of key evolution node information in each dynamic data segment to obtain wind shear feature parameters corresponding to each key node, wherein the wind shear feature parameters are specific data contents capable of identifying the wind shear state of the key node; The key evolution node information of dynamic data fragments corresponding to different mobile acquisition carriers is compared pairwise, key nodes with the same or similar wind shear characteristic parameters are identified, and the similar wind shear characteristic parameters are parameter expressions for representing the same wind shear evolution state; establishing node association identifiers for each group of key nodes with the same or similar wind shear characteristic parameters, wherein the node association identifiers are exclusive marks for marking the corresponding relations of key nodes of different carrier data segments; Constructing initial association lines for connecting key nodes of dynamic data segments of different mobile acquisition carriers based on node association identifiers, wherein the initial association lines are basic logic paths only connected with the corresponding key nodes; extracting dynamic data content around key nodes connected by an initial association line, and analyzing the change trend consistency of the dynamic data content, wherein the change trend consistency is the fit expression of the direction and the amplitude of the data content along with the change of time; according to the consistency of the change trend, the connection strength of the initial association line is adjusted, so that the association line between key nodes with the consistent trend of the change trend forms a tight connection state; And integrating all the adjusted association lines with the corresponding key nodes and dynamic data fragments to form association track lines capable of accurately associating different carrier data fragments, wherein the association track lines are used for reflecting synchronous record relations of different carrier data to the same wind shear evolution process.
  7. 7. The method for reconstructing a wind shear scene based on multi-source data fusion according to claim 3, wherein the step of performing staged adaptation on the extracted dynamic data item and the corresponding wind shear scene symbiotic element and change dimension according to the element dynamic description specification to establish the corresponding relationship between the data item and the element in different evolution stages comprises the steps of: Classifying all extracted dynamic data items according to wind shear evolution phases to form dynamic data sets corresponding to each evolution phase, wherein each dynamic data set comprises dynamic data items recorded by all mobile acquisition carriers of the evolution phase; Determining target data characteristics corresponding to each wind shear scene symbiotic element in each evolution stage by comparing the element dynamic description specifications, wherein the target data characteristics are ideal data performances for reflecting the change dimension of the wind shear scene symbiotic element in the evolution stage; comparing the data items in the dynamic data set of each evolution stage with the target data features of the symbiotic elements of the evolution stage, and primarily screening candidate data items conforming to the target data features; Extracting core data content in candidate data items, performing detailed matching with the change dimension of the corresponding symbiotic element, and confirming that the core data content can accurately describe the characteristic of the change dimension; distributing corresponding candidate data items for the change dimension of each wind shear scene symbiotic element in each evolution stage based on the matching result to form a preliminary corresponding relation; binding the data items in the preliminary corresponding relation with evolution nodes in the wind shear data track to enable the data items to form a corresponding relation with specific nodes of wind shear evolution; And integrating the corresponding relations of all evolution stages to form the data and element staged corresponding relation covering the wind shear full evolution process, all symbiotic elements and the variable dimension.
  8. 8. The method for wind shear scene reproduction based on multi-source data fusion according to claim 4, wherein the step of performing information superposition on different carrier dynamic data items corresponding to all symbiotic elements of a first evolution stage of wind shear according to the progressive fusion rule to form a comprehensive dynamic description of each symbiotic element of the first evolution stage comprises the steps of: grouping all dynamic data items of the first evolution stage of the wind shear according to the affiliated wind shear scene symbiotic elements to form multi-carrier data subsets corresponding to each wind shear scene symbiotic element, wherein each multi-carrier data subset comprises dynamic data items recorded by all mobile acquisition carriers of the wind shear scene symbiotic elements in the first stage; according to the progressive fusion rule, determining information weights of different mobile acquisition carrier data items in each multi-carrier data subset, wherein the information weights are superposition priorities determined according to the accuracy and the completeness of the element feature description of the data items; based on the information weight, extracting core information of the data items in each multi-carrier data subset, reserving core contents which play a key role in element feature description in each data item, and eliminating irrelevant data contents; summarizing all core information of the same multi-carrier data subset to form a core information set of the symbiotic element in the first stage, wherein the core information set comprises comprehensive feature description contents of the wind shear scene symbiotic element in the first stage; Analyzing information expression differences in the core information set, and carrying out unified processing on information with different expression modes and consistent core content to form a standardized information expression form; Classifying and arranging the standardized core information according to the change dimension of the symbiotic element, so that the information can clearly show the dynamic characteristics of the element according to the change dimension; and converting the standardized core information after classification arrangement into a coherent description text to form comprehensive dynamic description for reflecting the dynamic characteristics of the symbiotic element in the first evolution stage.
  9. 9. The method for wind shear scene reproduction based on multi-source data fusion according to claim 5, wherein the continuously linking the scene representation data of each stage according to the sequence of progressive stages to form a scene restoration data stream comprises: Extracting a core feature record in each progressive stage scene visualization data, wherein the core feature record is key data content for reflecting the main scene feature of the progressive stage wind shear; analyzing the change association of the core feature records of adjacent progressive stages, and determining the transition change rule of the core feature of the previous stage to the core feature of the later stage, wherein the transition change rule is the natural change logic of the core feature evolving along with wind shear; based on a transition change rule, generating dynamic transition data between adjacent stages, wherein the dynamic transition data is intermediate change description data for connecting core features of a previous stage and core features of a later stage and is used for embodying a gradual change process of the features; The scene imaging data of the previous stage, the dynamic transition data and the scene imaging data of the later stage are connected in series to form a stage connection unit, and the stage connection unit is used for reflecting continuous scene changes of two adjacent stages; sequentially completing the linking treatment of all adjacent progressive stages to generate a plurality of stage linking units, wherein each stage linking unit corresponds to two continuous reduction stages; Extracting data flow logic in each stage connection unit, so that the transmission of data in the stage connection units presents the natural evolution rhythm of wind shear; And integrating all the stage connecting units according to the sequence of progressive stages to form a scene restoration data stream capable of continuously presenting the scene characteristics of the wind shear full-evolution process, wherein data in the scene restoration data stream can be dynamically circulated in sequence to realize continuous presentation of scenes.
  10. 10. A multisource data fusion-based wind shear scene reproduction system, comprising: A processor; a machine-readable storage medium storing machine-executable instructions for the processor; wherein the processor is configured to perform the multisource data fusion based wind shear scene reproduction method of any of claims 1 to 9 via execution of the machine executable instructions.

Description

Wind shear scene reproduction method and system based on multi-source data fusion Technical Field The invention relates to the technical field of meteorological data processing, in particular to a wind shear scene reproduction method and system based on multi-source data fusion. Background Wind shear is a very dangerous and complex weather phenomenon in the relevant fields of meteorological research, aviation, energy sources and the like. Accurate reproduction of wind shear scenes is crucial for understanding their formation mechanisms in depth, predicting their trend of development, and developing effective countermeasures. Currently, in wind shear scene reproduction, analysis is mostly dependent on a single data source or simply combined data. Data acquired by different acquisition devices often exist independently and lack an effective integration mechanism. For example, data collected by ground weather stations, airborne sensors and the like are difficult to correlate due to different collecting carriers, collecting positions and time, and a comprehensive and dynamic description of wind shear is formed. Meanwhile, the existing method cannot fully consider the dynamic evolution characteristic of wind shear and symbiotic factors in a scene when processing wind shear data. Wind shear is not stationary but varies continuously over time and space, its formation and development being interrelated with a number of factors. However, the traditional method is difficult to mine the complex relations, the complete process from occurrence to dissipation of wind shear cannot be accurately presented, the reproduction of the wind shear scene is not accurate and comprehensive enough, and the requirements for accurate cognition and effective response of the wind shear in practical application are difficult to be met. Disclosure of Invention In view of the above-mentioned problems, in combination with the first aspect of the present invention, an embodiment of the present invention provides a wind shear scene reproduction method based on multi-source data fusion, the method including: acquiring multi-source wind shear dynamic data, wherein the multi-source wind shear dynamic data is an original dynamic observation data set recorded in real time by different mobile acquisition carriers in a wind shear influence area; anchoring the multi-source wind shear dynamic data across carrier data tracks based on the dynamic evolution characteristic of wind shear to form a wind shear data track set, wherein the wind shear data track set is an associated track sequence showing the evolution of data along with wind shear; digging wind shear scene symbiotic elements, and dynamically adapting and mapping track data in the wind shear data track set and the wind shear scene symbiotic elements to generate an element track mapping body; The element track mapping body is subjected to dynamic association information superposition in a multi-source data progressive fusion mode to form a wind shear evolution fusion representation; and constructing a scene artifact restoring link based on the wind shear evolution fusion characterization, dynamically presenting a complete evolution process of wind shear from occurrence to dissipation through the scene artifact restoring link, and outputting a wind shear reproduction scene. In still another aspect, an embodiment of the present invention further provides a wind shear scene reproduction system based on multi-source data fusion, including: the system comprises a processor, a machine-readable storage medium for storing machine-executable instructions of the processor, wherein the processor is configured to perform the multi-source data fusion-based wind shear scene reproduction method described above via execution of the machine-executable instructions. In yet another aspect, an embodiment of the present invention further provides a computer program product including machine-executable instructions stored in a computer-readable storage medium, from which a processor of a computer device reads the machine-executable instructions, the processor executing the machine-executable instructions, so that the computer device performs the above-described wind shear scene reproduction method based on multi-source data fusion. Based on the aspects, multi-source wind shear dynamic data recorded in real time in a wind shear influence area by different mobile acquisition carriers are obtained, cross-carrier data track anchoring is carried out on the multi-source data based on the dynamic evolution characteristic of wind shear to form a wind shear data track set, the evolution process of data along with wind shear can be embodied, wind shear scene symbiotic elements are mined and dynamic adaptation mapping is carried out on the track data to generate element track mapping bodies, various influence factors of wind shear formation and development are further considered, dynamic association information superposition is