An automatic drawing method for electrical system diagram based on artificial intelligence algorithm

Abstract

The present invention relates to an automatic mapping method for an electric system diagram based on an artificial intelligence algorithm, comprising the following steps: S1: obtaining power stations and their outgoing lines from an electric power GIS map to form source data for automatic mapping; S2: obtaining a simplified electric system topology map through a minimum electric system island simplification algorithm; S3: mapping the electric system topology map to a mapping area, optimizing the layout of the electric system map using a balance algorithm and a variety of intelligent algorithms; S4: supplementing the electric system map to complete the automatic mapping of the electric system map. Compared with the prior art, the present invention has the advantages of reducing labor costs and improving mapping efficiency.

Description

Technical Field

[0001] The invention relates to an electrical system diagram, and in particular to an automatic drawing method of an electrical system diagram based on an artificial intelligence algorithm. Background Art

[0002] The electrical system diagram is a very important thematic diagram in the dispatching and operation management of power grids. It processes the equipment in the electrical system in a regular way to form a thematic diagram with correct relationship connection, clear grid structure, standardized graphic expression, clear equipment marking, basically orthogonal lines, and overall coordination and beauty. It provides basic graphic support for various dispatching work management, fault repair management and other businesses.

[0003] Conventional electrical system diagrams are time-consuming and labor-intensive to draw due to the large amount of data, standardized layout, uneven equipment density, and a single drawing method. Therefore, it is urgent to provide a new method for drawing electrical system diagrams that can effectively reduce labor costs and improve drawing efficiency to meet the development needs of the new generation of power grids and energy Internet. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide an automatic drawing method of electrical system diagram based on artificial intelligence algorithm, which reduces labor costs and improves drawing efficiency.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] An automatic drawing method for an electrical system diagram based on an artificial intelligence algorithm comprises the following steps:

[0007] S1: Get the power station and its outgoing lines from the power GIS map to form the source data for automatic mapping. The power GIS map is a special map for power business with complete power equipment model, complete data, complete topology, and geographic information. S2: Obtain a simplified power system topology map through the minimum power system island simplification algorithm;

[0008] S3: Map the electrical system topology diagram to the drawing area, and use the balance algorithm and various intelligent algorithms to optimize the layout of the electrical system diagram;

[0009] S4: Supplementary processing is performed on the electrical system diagram to complete the automatic drawing of the electrical system diagram.

[0010] Furthermore, the step S1 specifically includes:

[0011] S11: Obtain the power station and its outgoing lines from the power GIS map;

[0012] S12: Starting from the outlet disconnecting device of the power station, the line equipment is analyzed according to the outgoing lines, and simplified and merged according to the rules;

[0013] The analysis of line equipment according to the outgoing line is specifically as follows: starting from the outlet circuit breaker, topological recursive analysis, until the edge equipment of a minimum electrical island (including the breaking equipment, the end of the line or the incoming line point of the next station);

[0014] In the rule-based simplification and merging, the simplification rules are as follows: merge the wire segments and cable segments that do not pass through key equipment or branches in the middle to achieve N:1 merging and minimize the number of electrical lines in the electrical system diagram. The minimum electrical system island refers to a set of equipment with topological connections enclosed by a group of disconnecting equipment, the incoming and outgoing lines of the station house, and the end of the line. As shown in the figure: There is a picture at the end.

[0015] S13: looping and iterating step S12 until the acquired device data and outgoing line data reach the target quantity;

[0016] S14: configuring the model, weight, electrical diagram layout parameters and drawing area parameters.

[0017] Furthermore, in the minimum electrical system island simplification algorithm, the layout is simplified according to the geographical location, specifically:

[0018] First, the geographic coordinates of each topological node are anchored, and the geographic coordinates are automatically matched according to the node in the electrical topology map, and finally the initial 33

[0019] Furthermore, the repulsion-tension balance algorithm calculates the repulsion between nodes in the topological graph and the tension between adjacent nodes, and adjusts each node in the topological graph to a relative equilibrium state through multiple motion iterations;

[0020] The formula of the repulsive force Fr is:

[0021]

[0022] Among them, k is a constant, and the optimal value can be found through repeated trials and adjustments. Q and q are the masses or charges of the two nodes in the topological graph, respectively, and r is the distance between the two nodes.

[0023] The formula of the tension Fa is:

[0024] Fa=m*L

[0025] Among them, m is the elastic coefficient, the weight of the intervening node can be considered, and L is the length of the topological graph edge.

[0026] More preferably, the repulsion-tension balance algorithm adopts a quarter-gradient balance displacement to perform motion iteration, and controls the displacement coefficient of the node closer to the middle to be smaller. The quarter-gradient balance displacement specifically includes the following steps:

[0027] According to the position of the nodes, it is divided into four parts from the center to the outside. The equilibrium displacement coefficients of the nodes in each part are different, and the equilibrium displacement coefficients gradually increase in a gradient in the four parts from the center to the outside.

[0028] Furthermore, in the step S3, the optimization of the electric line layout includes resetting the position of the off-station breaking equipment, orthogonalizing the electric line and eliminating convexity of the electric line.

[0029] Furthermore, the resetting of the position of the off-station disconnecting device specifically includes the following steps:

[0030] 11) Determine whether the nodes on both sides of the off-station disconnecting device are in the reverse rack state. If so, rotate the disconnecting device 180°;

[0031] 12) When the two ends of the disconnecting device are connected to an electric wire, if the disconnecting device switch is in the vertical direction and all the electric wires are above and below it, adjust the disconnecting device switch to the horizontal direction; if the disconnecting device switch is horizontal and all the electric wires are on the left and right of it, adjust the disconnecting device switch to the vertical direction;

[0032] 13) Place the disconnect device at the end along the direction of the electrical line.

[0033] After the overall tension balance layout, unnecessary crossing of the lines may occur due to the reverse rack of the off-station disconnecting equipment. By resetting the off-station disconnecting equipment and adjusting it to the appropriate angle, the crossing of the electrical lines can be reduced.

[0034] Furthermore, the orthogonalization of the electrical system lines specifically includes the following steps:

[0035] 21) Before each cycloid, perform angle occupation indexing and bypass the occupied angles. The right angles in the same quadrant are given priority. After the right angle is occupied, the 45-degree angle is enabled.

[0036] 22) The power lines outside the station are made orthogonal by straightening, bending and regularizing the lines;

[0037] 23) Orthogonalize the outgoing line of the power station, specifically: first determine the outgoing line orientation of the power line connected to the power station and the coordinate orientation of the other end of the power line, then add 2 to 3 nodes at both ends of the power line, and finally form a right-angled line by connecting the lines to generate an orthogonal power line bypassing the power station;

[0038] 24) The repeated points and looping segments of the electrical system after orthogonalization are post-processed to remove the repeated points and point loops, and vertical truncation is performed.

[0039] In step 23), the power lines connecting the power station include two types: above the power station and below the power station. The coordinate positions of the other end points of the power lines include eight types, namely, up, down, left, right, upper left, upper right, lower left, and lower right. Therefore, each power station outgoing line includes 16 situations. Through step 23), the power lines connecting the power station can bypass the bottom or top of the power station without crossing the graphics of the station building.

[0040] Furthermore, the electrical wire de-convexity treatment is used to compress the electrical wire containing convexities, and the types of the electrical wire containing convexities include:

[0041] Terminal electrical wire; electrical wire + electrical wire and partially extending in parallel; and electrical wire + disconnection + electrical wire and partially extending in parallel or looping;

[0042] The electrical line convexity elimination process specifically includes:

[0043] 31) Generate a moving particle;

[0044] 32) Let the mobile particle move along the electrical line, learn the alignment of the electrical line with a protrusion, and identify the wiring pattern;

[0045] 33) After the identification is completed, the bumps and right-angle loops on the electrical lines are eliminated, and smooth connections are made to complete the convexity elimination processing of the electrical lines.

[0046] Furthermore, the supplementary processing specifically includes fuse rod transformation combination, key rod extraction and automatic labeling.

[0047] Compared with the prior art, the present invention has the following advantages:

[0048] 1) The present invention combines intelligent algorithms with traditional electrical system diagram drawing through the minimum electrical system island simplification algorithm and the repulsion-tension balance algorithm, and realizes the rapid automatic layout of the electrical system diagram on a large depth, large range, and multi-connection data scale, completes automatic annotation, realizes automatic drawing of the electrical system diagram, effectively reduces labor costs, improves drawing efficiency, and establishes intelligent drive for electrical system diagram drawing;

[0049] 2) The present invention optimizes the electric line by resetting the off-station breaking equipment, orthogonalizing the electric line, eliminating the convexity of the electric line, and performing subsequent supplementary processing, so that the resulting drawing is beautiful, and has functions such as marking and rapid indexing, and has a good drawing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic diagram of the process of the present invention;

[0051] Figure 2 It is a schematic diagram of the specific drawing process of the present invention;

[0052] Figure 3 Schematic diagram of eliminating the convexity of the electric line with a convex end electric line type, wherein Figure (3a) is the direction diagram of the electric line before the convexity is eliminated, and Figure (3b) is the direction diagram of the electric line after the convexity is eliminated;

[0053] Figure 4 It is a schematic diagram of the de-convexity of the electric line + electric line and the local parallel extension type containing the convex electric line, wherein Figure (4a) is the direction diagram of the electric line before the de-convexity, and Figure (4b) is the direction diagram of the electric line after the de-convexity;

[0054] Figure 5 It is a schematic diagram of eliminating convexity of an electric line + disconnection + electric line and a local parallel extension or loop type electric line containing convexity, wherein Figure (5a) is a diagram of the direction of the electric line before eliminating convexity, and Figure (5b) is a diagram of the direction of the electric line after eliminating convexity;

[0055] Figure 6 A partial diagram of an electrical system diagram automatically generated in an embodiment of the present invention;

[0056] Figure 7 It is a schematic diagram of the minimum electrical system island;

[0057] Figure 8 This is a schematic diagram of the bypass of the power station for the electric line. DETAILED DESCRIPTION

[0058] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should belong to the scope of protection of the present invention.

[0059] Example

[0060] like Figure 1 and Figure 2 As shown, the present invention provides an automatic drawing method of an electrical system diagram based on an artificial intelligence algorithm, comprising the following steps:

[0061] S1: Obtain the power station and its outgoing lines from the power GIS map to form the source data for automatic mapping, including:

[0062] S11: Obtain the power station and its outgoing lines from the power GIS map;

[0063] S12: Starting from the outlet disconnecting device of the power station, the line equipment is analyzed according to the outgoing lines, and simplified and merged according to the rules;

[0064] Specifically, the line equipment is analyzed based on the outgoing line: a topological recursive analysis is performed starting from the outlet circuit breaker until the edge equipment of a minimum electrical island (including the disconnecting equipment, the end of the line or the incoming line point of the next station);

[0065] In the rule-based simplification and merging, the specific simplification rules are: merge the wire segments and cable segments that do not pass through key equipment or branches in the middle to achieve N:1 merging and minimize the number of electrical lines in the electrical system diagram. The minimum electrical system island refers to a set of topologically connected equipment surrounded by a group of disconnecting equipment, inlet and outlet lines of the station, and the end of the line, such as Figure 7 shown.

[0066] S13: looping and iterating step S12 until the acquired device data and outgoing line data reach the target quantity;

[0067] S14: configuring the model, weight, electrical diagram layout parameters and drawing area parameters.

[0068] S2: Obtain a simplified electrical system topology diagram through the minimum electrical system island simplification algorithm;

[0069] (1) Minimum electrical island simplification algorithm:

[0070] In conventional electrical system diagrams, under the premise of ensuring the accuracy of electrical system connection relationships, the number of graphics elements is minimized and basically arranged in a horizontal and vertical manner (some also roughly consider the geographical orientation); however, this method will cause staggered vertical and horizontal and divergent positions in large-scale and deep automatic mapping, which is difficult to stabilize as soon as possible in subsequent algorithms. Therefore, in this step, the minimum electrical system island is iteratively analyzed in sequence through the power outlet, and then mapped to the electrical system diagram after simplification, and the layout is simplified according to the geographical orientation, specifically:

[0071] First, the geographic coordinates of each topological node are anchored, and the geographic coordinates are automatically matched according to the node in the electrical topology map. Finally, the initial position of each node is formed, so that the subsequent repulsion-tension balance algorithm can be completed as quickly as possible when performing position balance, and the intersection will be reduced as much as possible.

[0072] S3: Map the power system topology diagram to the drawing area, and use the balance algorithm and a variety of intelligent algorithms to optimize the layout of the power system diagram, including resetting the off-station disconnecting equipment, orthogonalizing the power system lines, and eliminating the convexity of the power system lines, and finally obtain the power system layout diagram;

[0073] (1) Repulsion-tension balance algorithm:

[0074] There is a lack of research on the repulsion-tension algorithm in great depth and over a full range. The present invention can realize the feasibility of studying the repulsion-tension algorithm on a 10kV full-grid electrical system diagram of a municipal power supply company.

[0075] The repulsion-tension balance algorithm in this step calculates the repulsion between each node in the topology graph and the tension between each adjacent node, and adjusts each node in the topology graph to a positional equilibrium state through multiple motion iterations, and uses a quarter-gradient balanced displacement for motion iteration, controlling the displacement coefficient of the element closer to the center to be smaller, to prevent outward expansion caused by the tension algorithm. The quarter-gradient balanced displacement specifically includes the following steps: according to the position of the node, it is divided into four parts from the center to the outside, and the balanced displacement coefficient of each node in each part is different, and in the four parts from the center to the outside, the balanced displacement coefficient gradually increases in a gradient.

[0076] The formula of the repulsive force Fr is:

[0077]

[0078] Among them, k is a constant, and the optimal value can be found through repeated trials and adjustments. Q and q are the masses or charges of the two nodes in the topological graph, respectively, and r is the distance between the two nodes.

[0079] The formula of the tension Fa is:

[0080] Fa=m*L

[0081] Among them, m is the elastic coefficient, the weight of the intervening node can be considered, and L is the length of the topological graph edge.

[0082] (2) Reset of off-site disconnecting equipment:

[0083] After the overall tension balance layout, the disconnecting equipment outside the station may have a "reverse rack" situation, resulting in unnecessary crossing of the connection lines. Therefore, further processing is required to adjust the angle to the appropriate angle as much as possible to reduce the crossing. The specific implementation method is as follows:

[0084] Determine whether the nodes on both sides of the disconnecting device are inverted. If so, turn the disconnecting device 180 degrees. For example, in the FNODE (hereinafter referred to as the F end)-NODE (hereinafter referred to as the T end) mode, the other nodes connected to F are on the right, and the other nodes connected to T are on the left, forming an inverted rack. Adjust it.

[0085] The electrical lines are all on the same side (horizontally all left and all right; vertically all up and all down), and the up, down, left and right relationships of the coordinates of the ends of the electrical lines connected to the F and T terminals are superimposed. If the disconnecting equipment is inverted, it also needs to be adjusted;

[0086] When the disconnecting device is connected to a line at each end, if the switch is vertical + all up or all down, adjust it to the horizontal direction; if the switch is horizontal + all left or all right, adjust it to the vertical direction;

[0087] Finally, the end disconnecting equipment needs to be placed along the direction of the line to remove unnecessary right angles and adjust the angle for subsequent supplementary processing.

[0088] (3) Orthogonalization of electrical lines:

[0089] Orthogonalization is to conform to the wiring method of conventional electrical diagrams, which is more beautiful. The specific implementation method is as follows:

[0090] Angle index: To avoid duplication of lead direction at a node, an angle placeholder index is created for each cycloid. At the same time, the next cycloid needs to bypass the occupied angle. The right angle in the same quadrant is given priority. After the right angle is occupied, the 45-degree angle is enabled.

[0091] Orthogonalization of power lines: Orthogonalization of power lines outside the power station is not difficult. Normal straightening, cornering and line regularization are sufficient. The main thing is the orthogonalization of power station outgoing lines. It is necessary to consider the eight positions of the other ends of the incoming and outgoing lines (above and below the power station) in the power station. There are 16 situations for each incoming and outgoing point. Consider bypassing the power station from above or below. The implementation method is as follows:

[0092] First, determine the outgoing line orientation of the power line connecting the power station and the coordinate orientation of the other end of the power line, then add 2 to 3 nodes at both ends of the power line, and finally form a right-angled line by connecting the lines to generate an orthogonal power line bypassing the power station. Among them, the outgoing line orientation of the power line connecting the power station includes two types: above the power station and below the power station. The coordinate orientation of the other end of the power line includes eight types: up, down, left, right, upper left, upper right, lower left, and lower right. Therefore, each power station outgoing line includes 16 situations in total. Specifically, the coordinates (x1, y1) of the other end of the power line and the coordinates of the four vertices of the station building outer frame are determined. n ,y n )(n=1,2,3,4) to determine the up, down, left, and right directions.

[0093] For example: If the outgoing line direction of the power line connecting the power station is below the power station, and the coordinate direction of the other end point of the power line is the upper left corner, then two nodes are added at the end near the power station. One node pulls out the power station from below, and the other node turns to the left at a right angle and is pulled beyond the left side of the station frame. In this way, the power station is bypassed from the lower left and connected to the upper left endpoint.

[0094] By orthogonalizing the outgoing lines of the power station, the power lines connecting the power station can bypass the bottom or top of the power station without crossing the graphics of the station building. The effect diagram is as follows Figure 8 shown.

[0095] Post-processing: The orthogonalization process introduced earlier will generate duplicate points and looping line segments for some complex electrical lines (such as electrical lines connecting power stations at both ends). This step is to remove duplicate points, remove looping points (for example, the third point is on the line segment between points 1 and 2), and perform vertical truncation processing.

[0096] (4) Electrical line convexity elimination treatment

[0097] Cross wiring and orthogonalization processing will inevitably form some "bumps". By allowing the mobile particles to learn the "single-minded" routing and learn to recognize this wiring pattern, after the pattern recognition is completed, the convexity removal processing is completed as much as possible, and it is compressed to a harmonious position. During the compression process, the overlap of existing equipment is judged (to speed up the process, the spatial index is not repeatedly established, which will cause overlap of some newly adjusted equipment, but the probability of this situation is relatively low and does not affect the overall effect), making the electrical system diagram more beautiful.

[0098] Through the electrical wire de-convexity treatment, the electrical wire with convexity can be compressed to remove the convexity, such as Figure 3-Figure 5 As shown, the types of electrical lines containing protrusions are: end electrical lines; electrical lines + electrical lines and extending partially in parallel; and electrical lines + breaks + electrical lines and extending partially in parallel or looping.

[0099] S4: Supplementary processing is performed on the electrical system diagram, including fuse rod transformation combination, key rod extraction and automatic labeling, to complete the automatic drawing of the electrical system diagram.

[0100] (1) Fuse rod combination

[0101] Fuses, pole-mounted transformers and fuses connect users. Due to their simple structure, they do not occupy layout space after simplification and are placed in the post-processing steps. The minimum electrical island analysis and additional drawing methods are the same as the previous steps.

[0102] (2) Automatic labeling

[0103] The metadata configures the equipment's annotation attributes, size, color, arrangement, etc. After completing the small equipment composition diagram, the annotation position and angle are automatically calculated based on the metadata configuration information of the annotated equipment, the line equipment length, angle, etc., such as the vertical annotation of the power station outgoing line, the annotation of the distribution transformer angle extension direction, etc., to complete the equipment annotation in one go.

[0104] (3) Key rod extraction

[0105] Key poles refer to operating poles with identification functions such as pole-mounted equipment, branches, line ends, and crossing cables, which are important references for map checking and recognition. The operating poles can be indexed through the topological nodes of the electrical system and extracted to the corresponding coordinate positions.

[0106] In the process of automatic mapping, the present invention also improves the mapping efficiency through fast indexing. Considering the data scale of a 10kV distribution network diagram of a power supply company, there are more than 100,000 power lines and more than 6,000 power stations. With such a data scale, the amount of calculation is quite large. Therefore, it is necessary to optimize the spatial index, node data index, and node relationship index so that all the above calculation time and local mapping time of automatic mapping can be compressed within one hour. In this embodiment, the local part of the network diagram obtained by automatic mapping is as follows: Figure 6 shown.

[0107] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for automatically drawing an electrical system diagram based on an artificial intelligence algorithm, characterized in that: The following steps are involved: S1: Obtain the power station and its outgoing lines from the power GIS map to form the source data for automatic mapping; S2: Obtain a simplified electrical system topology diagram through the minimum electrical system island simplification algorithm; S3: Map the electrical system topology diagram to the drawing area, and use the balance algorithm and various intelligent algorithms to optimize the layout of the electrical system diagram; S4: Supplementary processing is performed on the electrical system diagram to complete automatic drawing of the electrical system diagram; In the step S3, the optimization of the layout of the power system diagram includes resetting the position of the off-station breaking equipment, orthogonalizing the power system lines, and eliminating the convexity of the power system lines; The resetting of the position of the off-station disconnecting device specifically includes the following steps: 11) Determine whether the nodes on both sides of the off-station disconnecting device are in the reverse rack state. If so, rotate the disconnecting device 180°; 12) When the two ends of the disconnecting device are connected to an electric wire, if the disconnecting device switch is in the vertical direction and all the electric wires are above and below it, adjust the disconnecting device switch to the horizontal direction; if the disconnecting device switch is horizontal and all the electric wires are on the left and right of it, adjust the disconnecting device switch to the vertical direction; 13) Place the disconnecting device at the end along the direction of the electrical line; The orthogonalization of the electrical system lines specifically comprises the following steps: 21) Perform angle occupation indexing before each cycloid and bypass the occupied angles; 22) The power lines outside the station are made orthogonal by straightening, bending and regularizing the lines; 23) Orthogonalize the outgoing line of the power station, specifically: first determine the outgoing line orientation of the power line connected to the power station and the coordinate orientation of the other end of the power line, then add 2 to 3 nodes at both ends of the power line, and finally form a right-angled line by connecting the lines to generate an orthogonal power line bypassing the power station; 24) Post-process the repeated points and looping line segments of the electrical system after orthogonalization, remove the repeated points and point loops, and perform vertical truncation processing; The electrical wire de-convexity treatment is used to compress the electrical wire containing convexities. The types of electrical wire containing convexities include: Terminal electrical wire; electrical wire + electrical wire and partially extending in parallel; and electrical wire + disconnection + electrical wire and partially extending in parallel or looping; The electrical line convexity elimination process specifically includes: 31) Generate a moving particle; 32) Let the mobile particle move along the electrical line, learn the alignment of the electrical line with protrusions, and identify the wiring pattern; 33) After the identification is completed, the bumps and right-angle loops on the electrical lines are eliminated, and smooth connections are made to complete the convexity elimination processing of the electrical lines.

2. The method for automatically drawing an electrical system diagram based on an artificial intelligence algorithm according to claim 1, characterized in that: The step S1 specifically includes: S11: Obtain the power station and its outgoing lines from the power GIS map; S12: Starting from the outlet disconnecting device of the power station, the line equipment is analyzed according to the outgoing lines, and simplified and merged according to the rules; S13: looping and iterating step S12 until the acquired device data and outgoing line data reach the target quantity; S14: configuring the model, weight, electrical diagram layout parameters and drawing area parameters.

3. The method for automatically drawing an electrical system diagram based on an artificial intelligence algorithm according to claim 1, characterized in that: In the minimum electrical system island simplification algorithm, the layout is simplified according to the geographical orientation, specifically: First, the geographic coordinates of each topological node are anchored, and the geographic coordinates are automatically matched according to the node in the electrical topology map, and finally the initial position of each node is formed.

4. The method for automatically drawing an electrical system diagram based on an artificial intelligence algorithm according to claim 1, characterized in that: The described balancing algorithm is a repulsion-tension balancing algorithm, which calculates the repulsion between nodes in the topological graph and the tension between adjacent nodes, and adjusts each node in the topological graph to a relative equilibrium state through multiple motion iterations; The formula of the repulsive force Fr is: Among them, k is a constant, and the optimal value is found through repeated trials and adjustments. Q and q are the masses or charges of the two nodes in the topological graph, respectively, and r is the distance between the two nodes. The formula of the tension Fa is: Fa=m*L Among them, m is the elastic coefficient, considering the weight of the intervening node, and L is the length of the topological graph edge.

5. The method for automatically drawing an electrical system diagram based on an artificial intelligence algorithm according to claim 4, characterized in that: The repulsion-tension balance algorithm adopts the quarter-gradient balance displacement to perform motion iteration, and controls the displacement coefficient of the node closer to the middle to be smaller. The quarter-gradient balance displacement specifically includes the following steps: According to the position of the nodes, it is divided into four parts from the center to the outside. The equilibrium displacement coefficients of the nodes in each part are different, and the equilibrium displacement coefficients gradually increase in a gradient in the four parts from the center to the outside.

6. The method for automatically drawing an electrical system diagram based on an artificial intelligence algorithm according to claim 1, characterized in that: The supplementary processing specifically includes fuse rod transformation combination, key rod extraction and automatic labeling.

Images