CN112380803A - Distribution network single line diagram artificial intelligence layout method, system and medium - Google Patents
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Abstract
The invention discloses a distribution network single line diagram artificial intelligence layout method, a distribution network single line diagram artificial intelligence layout system and a distribution network single line diagram artificial intelligence layout medium, wherein the distribution network single line diagram artificial intelligence layout method comprises the following steps: according to the electrical equipment and the topological connection information read from the original line data of the distribution network single line diagram, the electrical equipment is taken as a node, the topological connection information is taken as an edge, and a tree-shaped directed graph object is created; setting a rule of the overall layout plan of the distribution network single line diagram; and determining the main line, the positions of the nodes and the topological relation among the nodes according to the rule of the overall layout plan and the topological connection information. The invention has at least the following beneficial effects: according to the embodiment of the invention, the factors such as human thinking process, cognitive habits, aesthetic preferences and the like are organically integrated with the automatic layout algorithm of the distribution network single line diagram, so that the final effects of machine drawing and manual drawing are closer, and the practicability of machine drawing is improved.
Description
Technical Field
The invention relates to the field of artificial intelligence, in particular to a distribution network single line diagram artificial intelligence layout method, a distribution network single line diagram artificial intelligence layout system and a distribution network single line diagram artificial intelligence layout medium.
Background
The distribution network single line diagram is widely used in distribution, debugging, operation and inspection, marketing and other departments of the power company. Due to the fact that the number of the distribution network single line diagrams is large, the operation and maintenance workload is huge, and therefore the automatic layout algorithm of the distribution network single line diagrams is promoted to be developed vigorously.
However, computer automated mapping has not completed a full replacement for manual mapping for many years. The deep reason is that various automatic algorithms are simply automatically arranged by using knowledge in the fields of computer graphics/topology and the like, and human factors are ignored to a certain extent. Because the net single line diagram is ultimately used by humans rather than machines. Besides meeting the basic requirements of correct graphic topological logic, orderly arrangement and the like, the provided mapping result also needs to be suitable for human to watch, namely, the mapping result is convenient for human to read or memorize and meets the requirements of human use habits and aesthetic value.
Therefore, an AI layout algorithm simulating the process of manually adjusting the distribution network single line diagram is developed, and the automatic diagram forming result of the computer is close to the manual diagram adjusting result, so that the substitution effect of ' machine diagram ' on ' manual diagram forming is really realized, and the method has great significance.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the distribution network single line diagram artificial intelligence layout method provided by the invention can enable the final effect of machine drawing to be closer to that of artificial drawing.
The invention also provides a distribution network single line diagram artificial intelligence layout system.
The invention also provides a computer readable storage medium for implementing the method.
According to the embodiment of the first aspect of the invention, the artificial intelligence layout method for the distribution network single line diagram comprises the following steps: according to the electrical equipment and the topological connection information read from the original line data of the distribution network single line diagram, the electrical equipment is taken as a node, the topological connection information is taken as an edge, and a tree-shaped directed graph object is created; setting a rule of the overall layout plan of the distribution network single line diagram; and determining the main line, the positions of the nodes and the topological relation among the nodes according to the rule of the overall layout plan and the topological connection information.
According to some embodiments of the present invention, the setting of the rule for planning the overall layout of the distribution network single line diagram includes: the overall trend of the graph is set to be fixed from left to right.
According to some embodiments of the present invention, the setting of the rule for planning the overall layout of the distribution network single line diagram includes: setting rules of trunk planning, including: determining a trunk line path through topology search; when the only interconnection switch exists, setting a path from the outgoing switch to the interconnection switch as a main line; when a plurality of interconnection switches exist, setting the longest path from the outlet switch to each interconnection switch as a main line; when there is no tie switch, the longest power supply path from the outlet switch is set as the main line.
According to some embodiments of the present invention, the setting of the rule for planning the overall layout of the distribution network single line diagram includes: and determining the distance between the nodes according to the length of the trunk line and the number of the nodes on the trunk line.
According to some embodiments of the present invention, determining the distance between nodes according to the length of the trunk line and the number of nodes on the trunk line comprises: setting a map size parameter according to the size of a computer screen, and setting a maximum spacing threshold value and a minimum spacing threshold value; and calculating the node distance according to the size parameter of the map, the maximum distance threshold value and the minimum distance threshold value.
According to some embodiments of the present invention, the setting of the rule for planning the overall layout of the distribution network single line diagram includes: and setting an expansion map area size for the node of which the attribute is the power distribution room equipment, wherein the expansion map area size is the size of a graphic unit area occupied by the node of the power distribution room equipment in the map sheet.
According to some embodiments of the present invention, the determining, according to the rule of the overall layout plan and the topological connection information, a trunk line, the positions of the nodes, and a topological relation among the nodes includes: the method comprises the following steps of constructing a connection relation between the inside and the outside of a power distribution station house: determining that the node is an area node with the attribute of a power distribution station room, and removing the connection relation between the area node and peripheral equipment nodes; and connecting corresponding equipment nodes inside and outside the area nodes by orthogonal fold lines according to the topological relation between the incoming line interval and the outgoing line interval of the power distribution station room corresponding to the area nodes and equipment outside the station room.
According to some embodiments of the invention, the method further comprises: and determining that a cross crossing line exists in the formed diagram of the distribution network single line diagram, and adjusting the distribution sequence of the electrical intervals in the regional nodes of the distribution station.
According to a second aspect of the present invention, an artificial intelligence layout system for a distribution network single line diagram includes: the line data extraction module is used for creating a tree-shaped directed graph object by taking the electrical equipment as a node and the topological connection information as an edge according to the electrical equipment and the topological connection information read from the original line data of the distribution network single line graph; the overall layout planning module is used for setting the overall layout planning rule of the distribution network single line diagram; and the automatic node layout module is used for determining a trunk line, the positions of the nodes and the topological relation among the nodes according to the rule of the overall layout plan and the topological connection information.
A computer-readable storage medium according to an embodiment of the third aspect of the invention, having stored thereon a computer program which, when executed by a processor, performs the method of any of the embodiments of the first aspect of the invention.
The embodiment of the invention at least has the following beneficial effects: according to the embodiment of the invention, the factors such as human thinking process, cognitive habits, aesthetic preferences and the like are organically integrated with the automatic layout algorithm of the distribution network single line diagram, so that the final effects of machine drawing and manual drawing are closer, and the practicability of machine drawing is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
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The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic flow chart of a method according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a comparison of the rule of the bold display of the main trunk line.
Fig. 3 is a layout diagram of the trunk line straightening.
Fig. 4 is a schematic layout diagram of the branch lines alternately arranged on both sides of the trunk line.
Fig. 5 is a schematic diagram of an overall frame layout result of a distribution network single line diagram according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of the electrical equipment inside the power distribution station room according to the embodiment of the invention, which is unfolded within the corresponding dashed box.
Fig. 7 is a schematic diagram illustrating an electrical topological relationship established between devices inside and outside a power distribution station room according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of a distribution network single line diagram layout in a finished state according to an embodiment of the present invention.
FIG. 9 is a block diagram of the modules of the system of an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In order for machine drawings to better replace manual drawings, the drawing results of machine drawings must be suitable for human viewing, i.e., convenient for human reading or memory, and fit human usage habits and aesthetic requirements. Therefore, an AI layout algorithm simulating the process of manually adjusting the distribution network single line diagram is developed, and the automatic diagram forming result of the computer is close to the manual diagram adjusting result, so that the substitution effect of ' machine diagram ' on ' manual diagram forming is really realized, and the method has great significance.
The embodiment of the invention summarizes 7 distribution network single line diagram drawing rules or methods universally preferred by human beings.
1. People prefer to read pictures from left to right.
Related to the long-term character reading habit of people, we also like to analyze from left to right when reading pictures. The distribution network single line diagram is actually a tree-type topological structure "directed diagram", and the power supply direction of the power grid is often used as the positive direction of the diagram in the thought logic of people (note: for convenience of description, the lines with arrows in the following figures represent the power supply line and the power supply direction, and the rectangles represent the electrical devices), and people generally like that the positive direction of the diagram extends from left to right.
2. Bold display of preference for trunk line
For power supply lines, the concept of "main lines" and "branch lines" generally exists in the human brain. The main line is marked in a thickened mode, and therefore people can quickly understand the structure of the power grid. Referring to fig. 2, the graph representation in the right half of fig. 2, in which the trunk lines are represented by thicker lines and the branch lines are represented by thinner lines, is superior to the graph representation in the left half of fig. 2.
3. The inflection points of the main line should be as small as possible
Generally, it is preferred to draw the main lines straight to reduce the inflection points of the main lines. Referring to fig. 2 and 3, the layout of fig. 3 is superior to the layout of fig. 2 (main-line meandering layout).
4. Human general aesthetic preferences: symmetry, balance
In the overall layout style of the graph, people prefer the opposite-side layout, and if a plurality of branches exist, the branch lines are preferably arranged on the opposite sides (rather than being placed on the same side); the distribution of the graphic elements should be relatively balanced, and the density is not favored to be seriously uneven. The layout of fig. 4 (branch lines are alternately arranged on both sides of the trunk line) is superior to the layout of fig. 3 (branch lines are arranged on the same side of the trunk line).
5. Density preference for equipment configuration
The density of the equipment arrangement is highly related to the length of the power supply line and the number of the equipment. When the line length is short or the number of equipment is small, the arrangement is sparse; conversely, when the line length is long or the number of devices is large, the arrangement is dense. Generally, a distribution network single line diagram needs to be displayed on a common office computer, and the size of the diagram is preferably controlled within 1920x1080 (that is, the detailed content of the whole diagram can be clearly seen in a single screen, and scrolling display is not needed).
6. Early global layout planning
In the initial stage of drawing, the direction of the graph is planned in advance, different areas such as main branch lines, power distribution station rooms and the like are divided into relatively independent graph units, and drawing positions are reserved for each graph unit.
7. Late optimization adjustment
And in the later stage of drawing, checking the place where the line cross spans exist, and performing optimization adjustment to solve the cross problem as much as possible.
Referring to fig. 1, the distribution network single line diagram artificial intelligence layout method according to the embodiment of the present invention includes: according to the electrical equipment and the topological connection information read from the original line data of the distribution network single line diagram, the electrical equipment is taken as a node, the topological connection information is taken as an edge, and a tree-shaped directed graph object is created; setting a rule of the overall layout plan of the distribution network single line diagram; and determining the positions of the trunk line and the nodes and the topological relation among the nodes according to the rule of the overall layout plan and the topological connection information.
In some embodiments, extracting the line-based data flow comprises: the original line data of the distribution network single line diagram exists in a distribution geographic information system or a CIM/SVG interactive file, and electrical equipment and topology connection information are extracted from the original line data: each electrical device serves as a graph node (particularly, each distribution station room serves as an integral node), and the electrical topology information is converted into connection information among the graph nodes to form a tree-shaped directed graph object (namely, the graph nodes are 'vertexes', and the connection information among the nodes is 'edges').
In some embodiments, the planning of the overall layout comprises: and (3) planning the overall trend of the graph: fixation is from left to right.
In some embodiments, the planning of the overall layout comprises: and (3) planning a trunk line: and determining the trunk line path through topology search. The rules are as follows:
(1) when the only interconnection switch exists, a path from the line outlet switch to the interconnection switch is selected as a main line;
(2) when a plurality of interconnection switches exist, the longest path from the outlet switch to the interconnection switches is selected as a main line;
(3) when the tie switch is not present, the longest power supply path from the outlet switch is selected as the main line.
In some embodiments, the planning of the overall layout comprises: density planning:
and determining the distance between the nodes according to the length of the trunk line and the number of the nodes on the trunk line.
The rule on which the node distance calculation mainly depends is as follows:
(1) a map size limit (i.e., the size of the map is preferably controlled to be within the size of the computer screen);
(2) maximum and minimum limits (to ensure proper viewing by the human eye).
In some embodiments, the planning of the overall layout comprises: planning a power distribution station room:
the power distribution station room equipment (such as ring main unit, power distribution room, etc.) on the single line diagram needs to expand the internal topology structure. The size of the expanded graph is taken as the size of the graphic unit area occupied by the station room node.
In some embodiments, the graphic coordinate automatic layout process comprises: the method comprises the steps of overall frame layout of a distribution network single line diagram, room diagram expansion of a distribution station, construction of connection relation between the inside and the outside of the distribution station room and later-stage optimization.
Referring to fig. 5, in some embodiments, a distribution network single line diagram overall frame layout comprises:
and according to the direction of the main line from left to right and the topological relation among the devices, placing all the graph nodes at proper positions according to an orthogonal arrangement algorithm. Wherein, if the distribution station house exists in the single line diagram, the distribution station house is treated as a regional node (the size of the node is determined by the distribution station house planning described in the previous section). The overall trend and wiring relation framework of the line can be intuitively reflected by the layout result. An example of the results of the framework layout is shown in fig. 5, where the dashed boxes represent the distribution substation room area nodes.
Referring to fig. 6, in some embodiments, a substation room graph deployment includes: and (3) taking the bus equipment in the power distribution station room as a top node, unfolding the electrical equipment in the power distribution station room by adopting a hierarchical layout method, and placing an unfolding result in a corresponding dotted line frame. Referring to fig. 6, the power distribution station room area nodes shown in the dashed boxes are unfolded to show the topological relationship of the electrical devices therein.
Referring to fig. 7, in some embodiments, constructing a connection between inside and outside of a power distribution station room includes: the connection relationship between the power distribution station room area node (dotted line frame) and the peripheral equipment is released. And then, according to the topological relation between the incoming line interval and the outgoing line interval of the power distribution station room and equipment outside the station room, connecting corresponding equipment nodes in the station room and the station room by orthogonal fold lines, thereby constructing a complete electrical topology on the line.
Referring to fig. 8, in some embodiments, the post optimization comprises: whether or not there is a cross-over line in the map result shown in fig. 7 is calculated. If there is a cross-over, then it is further evaluated whether there is a way to avoid line crossing. Generally, if the crossing is caused by building the connections inside and outside the station building, the simplest solution is to adjust the order of arrangement of the electrical compartments in the station building. For example, by interchanging the two locations of the interval B, F in FIG. 7, cross-conflicts can be resolved. The final layout results are shown in fig. 8.
Corresponding to the foregoing embodiments, the present invention also provides system embodiments. For the system embodiment, since it basically corresponds to the method embodiment, reference may be made to the partial description of the method embodiment for relevant points. The system embodiments described below are merely illustrative, and some or all of the modules may be selected according to actual needs to achieve the purpose of the disclosed solution. One of ordinary skill in the art can understand and implement it without inventive effort.
Referring to fig. 9, the distribution network single line diagram artificial intelligence layout system according to the embodiment of the present invention includes: the line data extraction module is used for creating a tree-shaped directed graph object by taking the electrical equipment as a node and the topological connection information as an edge according to the electrical equipment and the topological connection information read from the original line data of the distribution network single line graph; the overall layout planning module is used for setting the overall layout planning rule of the distribution network single line diagram; and the automatic node layout module is used for determining the positions of the trunk line and the nodes and the topological relation among the nodes according to the rule of the overall layout plan and the topological connection information.
The method has the advantages that factors such as human thinking process, cognitive habits, aesthetic preferences and problem solving methods are innovatively and organically fused with the automatic layout algorithm of the distribution network single line diagram, so that the final effects of 'machine drawing' and 'manual drawing' are very close, and the method has important significance in improving the practicability of 'machine drawing'.
Although specific embodiments have been described herein, those of ordinary skill in the art will recognize that many other modifications or alternative embodiments are equally within the scope of this disclosure. For example, any of the functions and/or processing capabilities described in connection with a particular device or component may be performed by any other device or component. In addition, while various illustrative implementations and architectures have been described in accordance with embodiments of the present disclosure, those of ordinary skill in the art will recognize that many other modifications of the illustrative implementations and architectures described herein are also within the scope of the present disclosure.
Certain aspects of the present disclosure are described above with reference to block diagrams and flowchart illustrations of systems, methods, systems, and/or computer program products according to example embodiments. It will be understood that one or more blocks of the block diagrams and flowchart illustrations, and combinations of blocks in the block diagrams and flowchart illustrations, respectively, can be implemented by executing computer-executable program instructions. Also, according to some embodiments, some blocks of the block diagrams and flow diagrams may not necessarily be performed in the order shown, or may not necessarily be performed in their entirety. In addition, additional components and/or operations beyond those shown in the block diagrams and flow diagrams may be present in certain embodiments.
Accordingly, blocks of the block diagrams and flowchart illustrations support combinations of means for performing the specified functions, combinations of elements or steps for performing the specified functions and program instruction means for performing the specified functions. It will also be understood that each block of the block diagrams and flowchart illustrations, and combinations of blocks in the block diagrams and flowchart illustrations, can be implemented by special purpose hardware-based computer systems that perform the specified functions, elements or steps, or combinations of special purpose hardware and computer instructions.
Program modules, applications, etc. described herein may include one or more software components, including, for example, software objects, methods, data structures, etc. Each such software component may include computer-executable instructions that, in response to execution, cause at least a portion of the functionality described herein (e.g., one or more operations of the illustrative methods described herein) to be performed.
The software components may be encoded in any of a variety of programming languages. An illustrative programming language may be a low-level programming language, such as assembly language associated with a particular hardware architecture and/or operating system platform. Software components that include assembly language instructions may need to be converted by an assembler program into executable machine code prior to execution by a hardware architecture and/or platform. Another exemplary programming language may be a higher level programming language, which may be portable across a variety of architectures. Software components that include higher level programming languages may need to be converted to an intermediate representation by an interpreter or compiler before execution. Other examples of programming languages include, but are not limited to, a macro language, a shell or command language, a job control language, a scripting language, a database query or search language, or a report writing language. In one or more exemplary embodiments, a software component containing instructions of one of the above programming language examples may be executed directly by an operating system or other software component without first being converted to another form.
The software components may be stored as files or other data storage constructs. Software components of similar types or related functionality may be stored together, such as in a particular directory, folder, or library. Software components may be static (e.g., preset or fixed) or dynamic (e.g., created or modified at execution time).
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A distribution network single line diagram artificial intelligence layout method is characterized by comprising the following steps:
according to the electrical equipment and the topological connection information read from the original line data of the distribution network single line diagram, the electrical equipment is taken as a node, the topological connection information is taken as an edge, and a tree-shaped directed graph object is created;
setting a rule of the overall layout plan of the distribution network single line diagram;
and determining the main line, the positions of the nodes and the topological relation among the nodes according to the rule of the overall layout plan and the topological connection information.
2. The distribution network single line diagram artificial intelligence layout method according to claim 1, wherein the setting of the rule for the overall layout plan of the distribution network single line diagram includes:
the overall trend of the graph is set to be fixed from left to right.
3. The distribution network single line diagram artificial intelligence layout method according to claim 1, wherein the setting of the rule for the overall layout plan of the distribution network single line diagram includes:
setting rules of trunk planning, including:
determining a trunk line path through topology search;
when the only interconnection switch exists, setting a path from the outgoing switch to the interconnection switch as a main line;
when a plurality of interconnection switches exist, setting the longest path from the outlet switch to each interconnection switch as a main line;
when there is no tie switch, the longest power supply path from the outlet switch is set as the main line.
4. The distribution network single line diagram artificial intelligence layout method according to claim 1, wherein the setting of the rule for the overall layout plan of the distribution network single line diagram includes:
and determining the distance between the nodes according to the length of the trunk line and the number of the nodes on the trunk line.
5. The distribution network single line diagram artificial intelligence layout method according to claim 4, wherein the determining the spacing between nodes according to the trunk length and the number of nodes on the trunk comprises:
setting a map size parameter according to the size of a computer screen, and setting a maximum spacing threshold value and a minimum spacing threshold value;
and calculating the node distance according to the size parameter of the map, the maximum distance threshold value and the minimum distance threshold value.
6. The distribution network single line diagram artificial intelligence layout method according to claim 1, wherein the setting of the rule for the overall layout plan of the distribution network single line diagram includes:
and setting an expansion map area size for the node of which the attribute is the power distribution room equipment, wherein the expansion map area size is the size of a graphic unit area occupied by the node of the power distribution room equipment in the map sheet.
7. The distribution network single line diagram artificial intelligence layout method according to claim 1, wherein the determining, according to the rule of the overall layout plan and the topology connection information, the positions of the trunks, the nodes, and the topological relationships among the nodes comprises:
the method for constructing the connection relationship between the inside and the outside of the power distribution station house comprises the following steps:
determining that the node is an area node with the attribute of a power distribution station room, and removing the connection relation between the area node and peripheral equipment nodes; and connecting corresponding equipment nodes inside and outside the area nodes by orthogonal fold lines according to the topological relation between the incoming line interval and the outgoing line interval of the power distribution station room corresponding to the area nodes and equipment outside the station room.
8. The distribution network single line diagram artificial intelligence layout method according to claim 1, further comprising:
and determining that a cross crossing line exists in the formed diagram of the distribution network single line diagram, and adjusting the distribution sequence of the electrical intervals in the regional nodes of the distribution station.
9. The utility model provides a join in marriage net single line diagram artificial intelligence overall arrangement system which characterized in that includes:
the line data extraction module is used for creating a tree-shaped directed graph object by taking the electrical equipment as a node and the topological connection information as an edge according to the electrical equipment and the topological connection information read from the original line data of the distribution network single line graph;
the overall layout planning module is used for setting the overall layout planning rule of the distribution network single line diagram;
and the automatic node layout module is used for determining a trunk line, the positions of the nodes and the topological relation among the nodes according to the rule of the overall layout plan and the topological connection information.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method of any one of claims 1 to 8.
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| CN113987720A (en) * | 2021-09-22 | 2022-01-28 | 南京南瑞信息通信科技有限公司 | Method and system for generating single line diagram incremental diagram of power distribution network, storage medium and computing equipment |
| CN114254467B (en) * | 2021-11-25 | 2024-05-10 | 南方电网数字电网科技(广东)有限公司 | Method for generating power grid ring network graph |
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| CN113992522B (en) * | 2021-09-02 | 2024-04-09 | 深信服科技股份有限公司 | Network topology graph generation method and device, electronic equipment and storage medium |
| CN113987720A (en) * | 2021-09-22 | 2022-01-28 | 南京南瑞信息通信科技有限公司 | Method and system for generating single line diagram incremental diagram of power distribution network, storage medium and computing equipment |
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