Electric power communication network evaluation visualization method based on multi-source data fusion

Abstract

The invention belongs to the technical field of electric power communication network operation and maintenance, and particularly discloses an electric power communication network evaluation visualization method based on multi-source data fusion, which comprises the following steps: performing spatial superposition type expression on multi-source index data associated with an actual physical path in an electric power communication network by utilizing a 2.5 D index coding three-dimensional wall visualization method; constructing an improved multi-column mulberry-based graph structure based on the light path dimension, and carrying out global comparison sorting and index structure analysis on various index evaluation values of the light path in a logic path level; and performing synchronous comparison on the multi-dimensional indexes of each light path by using a radial layout-based font visualization component to complete power communication network evaluation visualization. According to the method, the problem that an existing evaluation visualization scheme cannot fully reflect the physical space structure of a communication network and cannot respond to the selection behavior of a user in real time, so that a significant difference is formed between the existing evaluation visualization scheme and the requirements of current operation and maintenance personnel on real-time performance, interactivity and a comprehensive visualization system is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of operation and maintenance of power communication networks, and particularly relates to a visualization method for evaluating power communication networks based on multi-source data fusion. Background Art

[0002] As a basic support platform for power system dispatching, control, protection, and information interaction, the operating state of the power communication network directly affects the security and reliability of the entire power grid system. With the continuous expansion of the scale of UHV, smart grid, and new energy access, the power communication network gradually presents complex characteristics of "multi-path, multi-system, and multi-service" in terms of structure. Its communication links not only cover optical cables, equipment, and stations, but also are closely related to multi-source heterogeneous information such as geographical location, pipeline structure, and resource allocation.

[0003] In the process of operation and maintenance and fault diagnosis of power communication networks, the health assessment of network links has become one of the key means. Typical evaluation dimensions include, but are not limited to, optical cable attenuation, fiber core redundancy, the number of common trenches, and the number of common cables. Currently, the evaluation methods for power communication networks in the industry can generally be classified into two categories: report-based offline analysis and layer-based static display: The report-based analysis method usually exports the above indicators in tabular form and presents them in a static report. Although this method has strong data integrity, it lacks spatial association and visual comparison capabilities. Users need to complete spatial association and index reasoning by themselves, with low efficiency and easy omission of key risk points.

[0004] The layer-based display method (such as sub-layer rendering in a GIS system) renders each indicator as an independent layer in the map interface. When evaluating, users need to frequently switch between different indicator views through the "layer switch". In this way, users can usually only view information for a single path under the current indicator layer and cannot achieve synchronous comparison of multiple optical paths; at the same time, users need to "integrate" the information of multiple indicator layers in their minds and rely on a large amount of manual experience to judge, with a high decision-making cost.

[0005] In addition, most of the existing evaluation visualization solutions use two-dimensional plane static graphics, lacking three-dimensional expression capabilities and dynamic interaction mechanisms. This way of expression cannot fully reflect the physical space structure of the communication network (such as the winding of geographical paths, the interlacing of multiple channels, etc.), nor can it respond in real time to users' selection behaviors (such as clicking to view details, filtering abnormal paths, expanding associated indicators, etc.). This forms a significant gap with the current needs of operation and maintenance personnel for real-time, interactive, and comprehensive visualization systems. Therefore, there is an urgent need for a visualization method that faces multi-dimensional index fusion, supports path-level spatial coding and interactive perception, and improves the evaluation efficiency and decision-making support ability of power communication networks. Summary of the Invention

[0006] The object of the present invention is to solve the problem that the existing evaluation visualization solutions cannot fully reflect the physical space structure of the communication network and cannot respond to the user's selection behavior in real time, resulting in a significant gap with the current operation and maintenance personnel's requirements for a real-time, interactive, and comprehensive visualization system. A power communication network evaluation visualization method based on multi-source data fusion is proposed.

[0007] The technical solution of the present invention is: A power communication network evaluation visualization method based on multi-source data fusion, comprising the following steps: Using the 2.5D index encoding three-dimensional wall visualization method, perform spatial superposition expression on the multi-source index data associated with the actual physical paths in the power communication network to generate a three-dimensional wall structure; Construct an improved multi-column Sankey diagram structure based on the optical path dimension, and perform global comparison and sorting and index structure analysis on the evaluation values of various optical path indicators at the logical path level; Using the glyph visualization component CompactStripeGlyph based on radial layout, visualize the multi-dimensional index values in the optical path samples, and perform synchronous comparison of the multi-dimensional indexes of each optical path; Design an interactive response mechanism, in response to the user's trigger operation on the three-dimensional wall structure, the improved multi-column Sankey diagram structure, or the visualization component, highlight the corresponding component and pop up a window to display the detailed data, and complete the power communication network evaluation visualization.

[0008] Preferably, the step of using the 2.5D index encoding three-dimensional wall visualization method to perform spatial superposition expression on the multi-source index data associated with the actual physical paths in the power communication network to generate a three-dimensional wall structure specifically includes the following steps: Obtain the set of physical paths in the power communication network topology :

[0009] Wherein, represents the total number of physical paths, represents the th physical path; The th physical path is represented as a sequence of channel units successively traversed along its geographical path:

[0010] Wherein, represents the th channel unit on the th physical path, and represents the th physical path The total number of channels passed through, each channel unit has multi-dimensional index information, and an index vector is constructed according to the multi-dimensional index information is:

[0011] wherein, represents the th index data of the channel unit , represents the total number of index data of the channel unit ; A normalization function is used to normalize the indexes of different dimensions in the index vector. The specific formula is:

[0012] wherein, represents the th index data of the normalized channel unit , represents the original data corresponding to the th index of the channel unit before normalization , is the minimum value of the original data corresponding to the th index of the channel unit before normalization , is the maximum value of the original data corresponding to the th index of the channel unit before normalization represents the theoretical maximum value of discrete indexes, represents the set of real numbers, represents the set of natural numbers;

[0013] wherein, represents the latitude of the th point of the three-dimensional wall forming the channel unit , represents the longitude of the th point of the three-dimensional wall forming the channel unit ; Based on the two-dimensional position point set the geographical location of the channel is determined to form the foundation of the three-dimensional wall, and based on the th index data of the normalized channel unit each channel unit is mapped to a cube primitive on the two-dimensional base to complete the construction of the 2.5D three-dimensional wall.

[0014] ​Preferably, the channel unit based on normalization of the nth index data maps each channel unit to a cube primitive on a two-dimensional substrate. The specific mapping relationship is as follows: The width of the cube primitive is unified with the width of each physical path; The height of the cube primitive is mapped and generated by the nth index data of the channel unit after normalization; The color of the cube primitive is derived from the index vector through a color mapping mechanism that combines normalization processing and discrete color band segmentation.

[0015] Preferably, the color of the cube primitive is derived from the index vector through a color mapping mechanism that combines normalization processing and discrete color band segmentation, and specifically includes the following steps: Use the perceptually uniform color spectrum set of ColorBrewer to divide the value range into n intervals:

[0016] Each interval corresponds to an RGB color scale, that is, the cube primitive The nth index data of the channel unit after normalization is mapped to:

[0017] where represents the color finally rendered for this part of the three-dimensional wall, represents rounding down, which is used to map continuous normalized values to discrete color segment indices.

[0018] Preferably, the improved multi-column Sankey diagram structure based on the optical path dimension is used to globally compare and sort the evaluation values of various optical path indicators and analyze the indicator structure at the logical path level. The specific steps are as follows: Construct a set of logical paths :

[0019] where represents the mth logical path, and corresponds to a set of aggregated evaluation indicators

[0020] where represents the The score of the th evaluation index of the th logical path represents the total number of evaluation indexes of the th logical path under the th index; the height of the node is proportional to ; the connection edge between nodes represents the transfer relationship of the same path under different index dimensions. The edge weight in the Sankey diagram is defined as a constant, and the edge path color remains consistent for path identification. When a certain path is highlighted, its edge is automatically thickened or brightened; Each column of nodes is sorted from high to low according to the corresponding index score, and the flow direction of the Sankey diagram is from left to right, forming an index analysis path from "comprehensive score" to each refined index.

[0021] Preferably, the glyph visualization component CompactStripeGlyph is arranged in a radial fan structure and is presented as a set of fan-shaped regions that are centrosymmetric and evenly distributed in form.

[0022] Preferably, the visualization of multi-dimensional index values in the optical path sample specifically includes the following steps: Based on the n evaluation indexes included in the optical path sample , the entire radian circular display area is equally divided into n sector sub-regions by the glyph visualization component CompactStripeGlyph , where the th sector region is used to evaluate the value of the th evaluation index; Each sector region is divided into layers along the radial direction, and each layer represents a segment of the graduation on the value interval of the th evaluation index; The stripes of each layer are arranged in sequence along the arc length direction in an equal-width manner to obtain a perceptible strip structure with stacked stripes; The value range of the evaluation index variable is normalized to obtain a normalized value :

[0023] The normalized value is mapped to the number of stripe filling layers :

[0024] Fill the front stripes in the sector area, and keep the unfilled part blank to represent the value size of the evaluation index variable.

[0025] Preferably, the method for synchronously comparing multi-dimensional indexes of each optical path is specifically as follows: Calculate the optical path on the evaluation index variable normalized value and the optical path on the evaluation index variable normalized value ; According to the normalized value and the normalized value , draw two sets of nested or juxtaposed stripe sets in the same sector area respectively and ; View the sector filling situation to judge the advantages and disadvantages of the optical path and the optical path under multi-dimensional attributes, and complete the synchronous comparison of multi-dimensional indexes of each optical path.

[0026] Preferably, the interactive response mechanism is specifically as follows: When hovering over the 3D wall primitive, a floating Tooltip displays the core index value of the corresponding channel unit; When clicking on the 3D wall primitive, the complete attributes of the corresponding channel unit are loaded and displayed in the page sidebar; When clicking on a logical path node or streamline, globally highlight the associated elements of the logical path in all index columns.

[0027] The beneficial effects of the present invention are: 1. One-map fusion of multi-dimensional indexes: The present invention fuses and visualizes various evaluation indexes of the power communication network, and a single map can present the data distributions of multiple dimensions such as optical attenuation, fiber core redundancy, co-cabling, and co-trenching, avoiding the cumbersome layer switching operations in traditional evaluations and improving the information display efficiency.

[0028] 2. Intuitive visual expression: The adopted 2.5D map wall rendering technology and color scheme make the evaluation results visually intuitive and vivid. The physical position of each optical path and the evaluation indexes are associated through encoding such as height and color, enhancing the geographical relevance and the readability of data representation, and enabling users to more quickly identify abnormal sections or weak index items.

[0029] 3. Comprehensive Ranking and Weakness Identification: The improved Sankey diagram structure can visually compare and rank the scoring results of multiple optical paths. The length and thickness of the flow lines reflect the strength of the indicators, enabling users to quickly identify the advantages and weak links of each optical path, and thus optimize and control risks targeted.

[0030] 4. Compact Expression and Efficient Comparison: The introduced CompactStripeGlyph glyph component adopts a radial fan structure and a stripe level encoding method to compress and display multiple indicator information in a limited graphic space, with extremely high variable carrying density and perceivable consistency. It supports side-by-side comparison of two or more optical paths under the same set of indicators, and intuitively reflects the strength and gap of variables through the number of stripe fill layers and color matching differences. Without relying on numerical tables, users can quickly perceive the indicator comparison relationship between different optical paths through graphical glyphs, improving the decision-making efficiency and cognitive efficiency of the evaluation task, and is particularly suitable for fine-grained weakness analysis and multi-path screening task scenarios.

[0031] 5. Strong Interaction Design: This solution supports two-way linkage interaction between the map and the Sankey diagram. Clicking on map or Sankey diagram elements can trigger corresponding highlighting and data pop-up display, enhancing the practicality and decision-making assistance value of the system. The interaction design enables users to deeply explore the details of the evaluation results, thus assisting operation and maintenance personnel and decision-makers to make more informed judgments. Description of the Drawings

[0032] Figure 1 Shown is a flowchart of a visualization method for evaluating a power communication network based on multi-source data fusion provided in Embodiment 1 of the present invention.

[0033] Figure 2 Shown is a schematic diagram of the rendering of the planar perspective of a three-dimensional diagram of a certain power communication network in a certain city provided in Embodiment 2 of the present invention.

[0034] Figure 3 Shown is a schematic diagram of the service selection panel of the power communication network provided in Embodiment 2 of the present invention.

[0035] Figure 4 Shown is a schematic diagram of the state of the three-dimensional wall 2.5D of a certain power communication network in a certain city provided in Embodiment 2 of the present invention.

[0036] Figure 5 Shown is a schematic diagram of the enlarged details of the three-dimensional wall of a certain power communication network in a certain city provided in Embodiment 2 of the present invention.

[0037] Figure 6 Shown is a schematic diagram of the interactive display when clicking and hovering provided in Embodiment 2 of the present invention.

[0038] Figure 7The sorting diagram interface provided in Embodiment 2 of the present invention is shown as follows.

[0039] Figure 8 The visualization rendering schematic diagram of a certain optical path provided in Embodiment 2 of the present invention is shown as follows.

[0040] Figure 9 The comparison diagram interface provided in Embodiment 2 of the present invention is shown as follows. Detailed implementation manners

[0041] Now, the exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the embodiments shown and described in the drawings are only exemplary, intended to illustrate the principles and spirit of the present invention, rather than limiting the scope of the present invention.

[0042] Embodiment 1: As Figure 1 shown, a visualization method for evaluating a power communication network based on multi-source data fusion includes the following steps: S1. Using the 2.5D index coding three-dimensional wall visualization method, perform a spatial superposition expression on the multi-source index data associated with the actual physical paths in the power communication network to generate a three-dimensional wall structure; In this embodiment, the 2.5D index coding three-dimensional wall visualization method aims to perform a spatial superposition expression on the multi-source index data associated with the actual physical paths in the power communication network, and clearly reflect the index risk distribution and path composition of the network physical layer in a three-dimensional form. Step S1 specifically includes the following sub-steps: Assume that there is a set of physical path sets in the entire network topology:

[0043] Among them, represents the total number of physical paths, and the th physical path can be expressed as the sequence of channel units successively traversed along its geographical path:

[0044] represents the th channel unit on the th path, represents the total number of channels passed by path , and there is multi-dimensional index information on each channel unit . Construct the index vector as:

[0045] Among them, represents the channel unit No. Indicator data, Channel Cell The total number of indicator data, in this embodiment, =4, Indicates the number of common grooves, which is discrete data; Indicates the number of shared cables, which is discrete data; Indicates the fiber core richness, which is a continuous variable; Represents the light attenuation information, which is a continuous variable. Then the normalization function is used to normalize the indicators of different dimensions:

[0046] in, represents the normalized channel unit No. Indicator data, represents the normalized front channel unit No. The original data corresponding to the indicators The minimum value of represents the normalized front channel unit No. The original data corresponding to the indicators The maximum value of It represents the theoretical maximum value of discrete index. represents the set of real numbers, Represents the set of natural numbers.

[0047] Next, each channel unit corresponds to a two-dimensional location point set on the map:

[0048] in, Represents the channel unit The three-dimensional wall The latitude of a point, Represents the channel unit The three-dimensional wall The longitude of a point; Each channel drawn on the map is connected by a series of longitude and latitude coordinate points, based on a two-dimensional location point set. Determine the geographical location of the channel, form the foundation of the three-dimensional wall, and based on the normalized channel unit No. Indicator data Each channel unit Mapped to a cube primitive on a two-dimensional basis, its visual expression is as follows: The width of the cube primitive is unified with the width of each physical path; The normalized channel unit No. Indicator data Mapping generates the height of the cube primitive; The cube primitive colors are derived from the index vectors through a color mapping mechanism that combines normalization with discrete color band segmentation; During the map rendering process, multiple stereo units of each path are arranged in sequence to form a "strip-shaped" 2.5D stereo wall structure, showing the hierarchical evolution of indicators of the path in the geographic space. In order to ensure the unified visual expression of indicators in the 2.5D stereo wall, the embodiment of the present invention designs a color mapping mechanism that integrates normalization processing and discrete color band segmentation.

[0049] The color map uses the perceptually balanced color spectrum set provided by ColorBrewer to divide the value range into n intervals:

[0050] Each interval corresponds to an RGB color level, that is, a cube primitive , the normalized channel unit No. Indicator data The mapping is:

[0051] in, Indicates the final color of the 3D wall rendering. Represents flooring, used to map continuous normalized values to discrete color segment indices.

[0052] In actual deployment, this method uses path segments (such as ditch segments) as the smallest unit, abstracts their direction on the map into line segments with a certain geographic coordinate length, and uses WebGL technology to construct 2.5D stereo walls on the map layer.

[0053] S2. Construct an improved multi-column Sankey diagram structure based on the light path dimension, and perform global comparison and sorting of various light path indicator evaluation values and indicator structure analysis at the logical path level; In this embodiment, an improved multi-column Sankey diagram structure suitable for health assessment of the logic layer of the power communication network is constructed, and its main purpose is to perform global comparative sorting and indicator structure analysis on various indicator evaluation values of the optical path at the logical path level.

[0054] Defining a set of logical paths for:

[0055] in, Indicates A logical path corresponding to a set of aggregated evaluation metrics :

[0056] Among them, represents the th logical path of the th evaluation metric score, represents the th logical path of the total number of evaluation metrics. In the embodiments of the present invention, = 3, represents the th logical path of the comprehensive score, represents the th logical path of the co-groove influence score, represents the th logical path of the co-cable influence score, represents the th logical path of the optical attenuation influence score.

[0057] Construct a Sankey diagram with K + 1 columns, corresponding to K + 1 index dimensions. Each column of nodes represents the th path under the th index. The height of the node is proportional to . The connecting edges between the nodes represent the transfer relationship of the same path under different index dimensions. The edge weights in the Sankey diagram are defined as constant constants, the widths of all edges are the same, and the edge path colors are kept consistent for path identification. When a certain path is highlighted, its edges are automatically thickened or brightened.

[0058] Each column of nodes is sorted from high to low according to the corresponding index scores to achieve a global comparison of index influences. The flow direction of the Sankey diagram is always from left to right, forming an index analysis path from the "comprehensive score" to each refined index.

[0059] S3. Use the glyph visualization component CompactStripeGlyph based on radial layout to visualize the multi-dimensional index values in the optical path samples and synchronously compare the multi-dimensional indexes of each optical path; In this embodiment, to improve the comparison efficiency of multiple optical paths in a power communication network under multiple index dimensions, the embodiment of the present invention introduces a glyph visualization component CompactStripeGlyph based on a radial layout to support graphical encoding, quick comparison, and perception of optical paths under multiple core indicators. The glyph visualization component CompactStripeGlyph is laid out in a radial fan structure, and its design inspiration comes from the structure of traditional Chinese gossip graphics, presenting a set of fan-shaped areas that are centrosymmetric and evenly distributed in form.

[0060] The visualization of the multi-dimensional index values in the optical path sample specifically includes the following steps: Based on the n evaluation indicators included in the optical path sample , the entire radian circular display area is equally divided into n sector sub-areas by the glyph visualization component CompactStripeGlyph, where the th sector area is used to evaluate the value of the index ; Each sector area is divided into layers along the radial direction, and each layer represents a segment of the scale on the value interval of the evaluation index ; Arrange the stripes of each layer in equal width along the arc length direction in sequence to obtain a perceivable banded structure with stacked stripes. The number of layers is a preset global parameter used to control the visual accuracy. The larger its value, the higher the visual expression granularity; Normalize the value range of the evaluation index variable to obtain a normalized value :

[0061] Map the normalized value to the stripe filling layer number :

[0062] Fill the first layers of stripes in the sector area , and keep the unfilled part blank to represent the value size of the evaluation index variable. This design can naturally support percentage expression and has strong visual identifiability.

[0063] The method for synchronously comparing the multi-dimensional indicators of each optical path is specifically as follows: Calculate the optical path The normalized value on the evaluation index variable and the optical path The normalized value on the evaluation index variable ; According to the normalized value and the normalized value , in the same sector area draw two sets of nested or juxtaposed stripe sets and ; Check the sector filling condition to judge the optical path and the optical path Under the multi-dimensional attributes, complete the synchronous comparison of the multi-dimensional indicators of each optical path.

[0064] In the embodiment of the present invention, CompactStripeGlyph is applied to the graphical encoding and comparison of the following four core evaluation indicators of power communication:

[0065] Before drawing, each index is compressed to [0,1] through a unified normalization method, and filled and expressed in the sector area to form a complete comparable glyph map unit. Users can quickly judge the advantages and disadvantages of the optical path and the optical path under the multi-dimensional attributes by visually checking the sector filling condition.

[0066] In addition, this component has good scalability and can be used to support the synchronous comparison of multiple optical paths (k>2). Just expand the same set of sector areas into multiple sets of superimposed or juxtaposed stripe diagrams to complete the compact visual mapping of multiple objects and multiple indicators. The glyph visualization component CompactStripeGlyph can compress and express multiple variables in a limited graphical space, support efficient comparison; at the same time support the expansion of any number of variables and any number of optical paths; and remain consistent, with the same variable dimension, which is conducive to cognitive analogy and visual memory.

[0067] S4. Design an interactive response mechanism. In response to the user's triggering operation on the three-dimensional wall structure, the improved multi-column Sankey diagram structure, or the visualization component, highlight the corresponding component and pop up a window to display the detailed data, and complete the visualization of the power communication network evaluation.

[0068] In this embodiment, in addition to the most basic shape composition and color coding, the embodiment of the present invention adds a series of information interaction mechanisms to the components. Specifically, when the user hovers the mouse over any three-dimensional wall component, the system triggers a response action through an event binding mechanism: an information panel (Tooltip) floats out on the layer to display multiple core indicator values of the channel segment. When the user clicks on the three-dimensional wall, the system will dynamically load the details information panel in the right area of the page to display the complete properties of the channel segment, including the number of common trench segments, the number of common cables, the use of the optical path core, and other logical path names shared with the segment in the current path segment, so as to help users intuitively understand the relevant information. This interactive mechanism not only improves the meticulousness of indicator perception, but also supports operation and maintenance personnel to quickly trace and deal with local weak links.

[0069] The embodiment of the present invention defines and implements a logical interaction mechanism for the component. Specifically, after the user clicks on any logical path node or streamline, the system will highlight the path in the entire map by color enhancement (such as highlighting, luminescence, etc.); guide the user to track from the "path source" on the left to each evaluation dimension through color consistency, animation indicator lines, directional markings, etc.; each column of nodes is arranged in order from high to low according to the score, and the user can intuitively see which indicator dimension the selected path is at, such as excellent, good, medium, or poor, to form an "indicator health map".

[0070] Embodiment 2: On the basis of Example 1, the embodiment of the present invention takes a power communication network service in a certain city as an example to specifically demonstrate and illustrate the actual effect and application capability of the power communication network evaluation visualization method based on multi-source data fusion proposed by the present invention. Through the embodiment of the present invention, it can fully reflect the ability of the power communication network evaluation visualization method based on multi-source data fusion proposed by the present invention to integrate and express evaluation data in a real network environment, the multi-dimensional linkage effect of physical paths and logical topologies, and the user's rapid perception of key indicators and auxiliary decision-making support capabilities during the interaction process. The embodiment of the present invention further verifies the practicality and advancement of the present invention in actual operation and maintenance scenarios.

[0071] Taking a communication system of a city's power network as an example, first render a three-dimensional wall in the center of the map to show the overall distribution of the communication network. At the same time, activate the buttons that can be operated on the current communication network in the information panel (topology map, sorting map, comparison map), such as Figure 2 and Figure 3 shown.

[0072] When the user further drags to change the Z-axis visual angle, a three-dimensional wall is presented, such as Figure 4 and Figure 5 shown.

[0073] When the user hovers the mouse, the current channel overview is displayed beside the three-dimensional wall. When clicked, the information panel presents the channel details, such as Figure 6 shown.

[0074] For the status button of each communication network, the sorting diagram represents an improved multi-column Sankey diagram based on the optical path dimension designed by the present invention. The comparison diagram represents a glyph visualization component based on the radial layout designed by the present invention. The interface of the sorting diagram is as Figure 7 shown.

[0075] When the user clicks on a certain optical path, the improved Sankey diagram will highlight the current path, and at the same time, only this optical path will be visually rendered in the map. The optical path quality score is provided through the hovering information panel as Figure 8 shown.

[0076] The interface of the comparison diagram is as Figure 9 shown, and the quality score situations of two different optical paths can be clearly compared.

[0077] Those of ordinary skill in the art will realize that the embodiments described herein are for helping the reader understand the principles of the present invention, and it should be understood that the protection scope of the present invention is not limited to such specific statements and embodiments. Those of ordinary skill in the art can make various other specific deformations and combinations that do not depart from the essence of the present invention according to these technical revelations disclosed by the present invention, and these deformations and combinations are still within the protection scope of the present invention.

Claims

1. A visualization method for evaluating a power communication network based on multi-source data fusion, characterized in that Including the following steps: Using the 2.5D index-encoded three-dimensional wall visualization method, perform a spatial superposition expression on the multi-source index data associated with the actual physical paths in the power communication network to generate a three-dimensional wall structure; Construct an improved multi-column Sankey diagram structure based on the optical path dimension, and conduct a global comparison and sorting of the evaluation values of various optical path indicators and an index structure analysis at the logical path level; Using the glyph visualization component CompactStripeGlyph based on the radial layout, visualize the multi-dimensional index values in the optical path samples, and synchronously compare the multi-dimensional indexes of each optical path; Design an interaction response mechanism. In response to the user's trigger operation on the three-dimensional wall structure, the improved multi-column Sankey diagram structure, or the visualization component, highlight the corresponding component and pop up a window to display the detailed data, and complete the visualization of the power communication network assessment.

2. The visualization method for evaluating a power communication network based on multi-source data fusion according to claim 1, wherein The step of using the 2.5D index-encoded three-dimensional wall visualization method to perform a spatial superposition expression on the multi-source index data associated with the actual physical paths in the power communication network to generate a three-dimensional wall structure specifically includes the following steps: Obtain the set of physical paths in the power communication network topology : Among them, represents the total number of physical paths, represents the th physical path; Represent the physical path as a sequence of channel units that it traverses successively along the geographical path: Among them, represents the th physical path and the th channel unit thereon, represents the total number of channels th physical path passes through. There is multi-dimensional index information on each channel unit, and an index vector is constructed according to the multi-dimensional index information as follows: For: Among them, represents the nth indicator data of the channel unit, and represents the total number of indicator data of the channel unit; Use a normalization function to normalize the indexes in different dimensions of the index vector. The specific formula is: Among them, represents the nth index data of the normalized channel unit represents the original data corresponding to the nth index of the channel unit before normalization is the minimum value represents the original data corresponding to the nth index of the channel unit before normalization is the maximum value represents the theoretical maximum value of the discrete index represents the set of real numbers represents the set of natural numbers; Each channel unit corresponds to a set of two-dimensional position points on the map : Among them, represents the latitude of the th point of the three-dimensional wall constituting the channel unit, and represents the longitude of the th point of the three-dimensional wall constituting the channel unit; Based on a two-dimensional set of position points Determine the geographical location of the channel, form the foundation of the three-dimensional wall, and based on the normalized channel unit the th index data Map each channel unit to a cube primitive on the two-dimensional base to complete the construction of the 2.5D three-dimensional wall.

3. The visualization method for evaluating a power communication network based on multi-source data fusion according to claim 2, wherein The channel unit based on normalization The index data of the Each channel unit is mapped to a cube primitive on a two-dimensional substrate. The specific mapping relationship is as follows: The width of the cube primitive is unified with the width of each physical path; The channel unit after normalization The index data is mapped to generate the height of the cube primitive; Derive the cube primitive color from the index vector through a color mapping mechanism that combines normalization processing and discrete color band segmentation.

4. The visualization method for evaluating a power communication network based on multi-source data fusion according to claim 3, wherein The step of deriving the cube primitive color from the index vector through a color mapping mechanism that combines normalization processing and discrete color band segmentation specifically includes the following steps: Use the perceptually uniform color spectrum set of ColorBrewer to divide the value range into n intervals: Each interval corresponds to an RGB color scale, i.e., a cube primitive , the normalized channel unit of the n-th index data is mapped to: Among them, represents the color finally rendered for this part of the three-dimensional wall. represents rounding down, which is used to map continuous normalized values to discrete color segment indices.

5. The visualization method for evaluating a power communication network based on multi-source data fusion according to claim 1, wherein The step of using the improved multi-column Sankey diagram structure based on the optical path dimension to conduct a global comparison and sorting of the evaluation values of various optical path indicators and an index structure analysis at the logical path level specifically includes the following steps: Construct a set of logical paths : Among them, represents the th logical path, corresponding to a set of aggregated evaluation metrics : Among them, represents the th logical path of the score of the th evaluation index, represents the total number of evaluation indexes of the Construct a Sankey diagram with K + 1 columns, corresponding to K + 1 indicator dimensions. Each column of nodes in the Sankey diagram represents the th path under the th indicator. The height of the node is proportional to . The connecting edges between nodes represent the transfer relationship of the same path under different indicator dimensions. The edge weight in the Sankey diagram is defined as a constant. The edge path colors are kept consistent for path identification. When a certain path is highlighted, its edges are automatically thickened or brightened; Each column of nodes Sorted from high to low according to the corresponding index scores, the flow direction of the Sankey diagram is from left to right, forming an index analysis path from "comprehensive score" to each refined index.

6. The visualization method for evaluating a power communication network based on multi-source data fusion according to claim 1, wherein The glyph visualization component CompactStripeGlyph is laid out in a radial fan structure and appears as a set of fan-shaped areas that are centrosymmetric and evenly distributed in form.

7. The visualization method for evaluating a power communication network based on multi-source data fusion according to claim 6, wherein The step of visualizing the multi-dimensional index values in the optical path samples specifically includes the following steps: Based on the n evaluation metrics included in the optical path sample , through the glyph visualization component CompactStripeGlyph, the entire circular display area of n radians is equally divided into sector sub-regions . Among them, the sector area is used to evaluate the value of the evaluation metric; Divide the interior of each sector region along the radial direction into layers, and each layer represents a segment of the graduation on the value interval of the evaluation index; Arrange the stripes in each layer in an equal-width manner along the arc length direction to obtain a perceptible banded structure with stacked stripes; Normalize the range of values that the evaluation index variable can take to obtain the normalized value : Map the normalized value to the number of stripe filling layers : In the sector area before filling layer stripes. The unfilled part remains blank to represent the value size of the evaluation index variable.

8. The visualization method for evaluating a power communication network based on multi-source data fusion according to claim 7, wherein The method for synchronously comparing the multi-dimensional indexes of each optical path is specifically: Calculation optical path On the evaluation index variable Normalized value And the optical path On the evaluation index variable Normalized value ; According to the normalized value and the normalized value , in the same sector area , draw two sets of nested or juxtaposed stripe sets and ; Check the fan-shaped filling condition to judge the optical path and the optical path Under the multi-dimensional attributes, compare the advantages and disadvantages, and complete the synchronous comparison of the multi-dimensional indicators of each optical path.

9. The visualization method for evaluating a power communication network based on multi-source data fusion according to claim 1, wherein The interaction response mechanism is specifically: When hovering over the three-dimensional wall primitive, a floating Tooltip displays the core index value of the corresponding channel unit; When clicking on the three-dimensional wall primitive, the complete attributes of the corresponding channel unit are loaded and displayed in the page sidebar; When clicking on a logical path node or streamline, globally highlight the associated elements of this logical path in all index columns.

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