CN110941888A - Urban gas pipe network topology data file generation method based on pipe network simulation - Google Patents
Urban gas pipe network topology data file generation method based on pipe network simulation Download PDFInfo
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Abstract
The invention relates to a method for generating a topological data file of an urban gas pipe network based on pipe network simulation, which comprises the following steps: step S1: traversing a pipe network topological structure, and numbering each element of the pipe network; step S2: determining a gate station and a user, and carrying out numbering and port definition; step S3: generating data for the voltage regulating station; step S4: marking the connecting ports of other elements according to the element types; step S5: and generating a pipe network topology data file. The invention can meet the requirement of pipe network simulation on the topological structure information of the pipe network, has lower complexity and can avoid structural errors in the pipe network topology. The expansion and attribute supplement of the pipe network can be rapidly carried out based on the generated data file, useful information required by pipe network simulation can be rapidly acquired, equation solution, simulation operation and the like based on data are conveniently carried out, and a data basis is provided for analysis and calculation of practical application situations such as subsequent leakage detection, pipe network topology design planning and the like.
Description
[ technical field ] A method for producing a semiconductor device
The invention belongs to the technical field of urban pipe network analysis, and particularly relates to a method for generating a topological data file of an urban gas pipe network based on pipe network simulation.
[ background of the invention ]
Various urban underground pipe networks are important components of urban infrastructure, such as nerves and blood vessels in human bodies, are responsible for information transmission and energy transmission day and night, are the material foundation for living and development of cities, and are called urban lifelines. The good infrastructure and the perfect urban function form a good investment environment which is the guarantee of accelerating economic development and accelerating modernization process. With the continuous and deep information construction, the urban gas network bears more and more business data and department functions, which brings about the continuous expansion of the network scale and more complex network relationship. To accurately obtain the complex state information contained in the network, a process from acquiring information to extracting useful information needs to be performed. For an urban gas pipe network, topological data of pipelines are very important, and the topological data are the basis for analyzing pipe network accidents, analyzing shortest paths and the like. However, most of the existing pipe network systems are based on two-dimensional plane analysis and display, that is, when an accident is detected by a monitoring device, the analysis based on a plane graph needs to design a topological structure for analysis, the complexity of the analysis is high, the simulation is not favorable for fault recurrence, the solution of a linear equation is also not favorable, the simulation and subsequent analysis are often easy to occur, the calculation complexity is high, and available analysis means are limited. On the basis of meeting the requirement of pipe network simulation on the information of the pipe network topological structure, the visual pipe network is completely converted into a data file form which can be directly used, and the abstract visual system of the pipe network topological structure is expressed simply by the data file structure, so that the pipe network connectivity check can be rapidly carried out on the basis of the file, the complexity is low, and the structural errors in the pipe network topology can be avoided. The expansion and attribute supplement of the pipe network can be rapidly carried out based on the generated data file, useful information required by pipe network simulation can be rapidly acquired, equation solution, simulation operation and the like based on data are conveniently carried out, and a data basis is provided for analysis and calculation of practical application situations such as subsequent leakage detection, pipe network topology design planning and the like.
[ summary of the invention ]
In order to solve the above problems in the prior art, the invention provides a method for generating an urban gas pipe network topology data file based on pipe network simulation, which comprises the following steps:
step S1: traversing a topological structure of the pipe network, and numbering each element of the pipe network;
step S2: determining a gate station and a user, judging 1 port and 2 ports of pipelines connected with the gate station and numbering a connecting port, so that 0 port of the gate station is connected with 1 port of the pipeline section, and 0 port of the user is connected with 2 ports of the pipeline section;
step S3: judging whether a pressure regulating station exists in the pipe network, if so, further judging the upstream and downstream of the pressure regulating station, and numbering ports 1 and 2, wherein the upstream of the pressure is 1 port, and the downstream of the pressure is 2 ports; the pressure upstream port 1 of the pressure regulating station is connected with the port 2 of the pipeline, the pressure downstream port 2 of the pressure regulating station is connected with the port 2 of the pipeline; if no voltage regulating station exists, directly jumping to the step 4;
step S4: marking the connecting ports of other elements according to the element types;
step S5: and generating a pipe network topology data file according to the connectivity of the pipe network, the set element numbers and the connector numbers.
Further, the step S1 is specifically: traversing the pipe network topological structure, numbering pipe network elements passing through in the traversing process in sequence, and defining different numbers of connectors for different primitive types.
Further, the numbering is continuous numbering.
Further, the different number is a preset number.
Further, the preset number corresponding to the different types of primitives is stored in a preset correspondence table, and the preset number corresponding to the primitives can be acquired by querying the preset correspondence table.
Furthermore, the user and the plug are provided with only one connecting port which is defined as 0 port; the two-way valve, the pressure regulating station and the pipe section are respectively provided with only two connecting ports which are defined as 1 port and 2 ports; the tee joint is provided with three connecting ports which are defined as 1 port, 2 ports and 3 ports; four ports are defined as 1, 2, 3 and 4.
Further, the traversal mode is a pre-order traversal.
Further, the determining the gate station and the user specifically includes: in the process of traversing, labels are set for the gate stations and the users, and the gate stations and the users are quickly positioned in the following process.
Further, the upstream-downstream relationship is defined by 1 port and 2 ports of the pipe section: the 1 port of the pipe section represents inflow and the 2 port represents outflow, and correspondingly, the door station must connect the 1 port of the pipe section and the user must connect the 2 ports of the pipe section.
Furthermore, in the traversing process, if the traversed graphic element is a pressure regulating station, a label is set for the pressure regulating station, and the door station and the user are quickly positioned in the following process.
The beneficial effects of the invention include: on the basis of meeting the requirement of pipe network simulation on pipe network topological structure information, the visual pipe network is completely converted into a data file form which can be directly used, and the abstract data file structure for the network topological structure visualization system is expressed in a simplified mode, so that pipe network connectivity check can be rapidly carried out based on the file, the complexity is low, and structural errors in pipe network topology can be avoided. The expansion and attribute supplement of the pipe network can be rapidly carried out based on the generated data file, useful information required by pipe network simulation can be rapidly acquired, equation solution, simulation operation and the like based on data are conveniently carried out, and a data basis is provided for analysis and calculation of practical application situations such as subsequent leakage detection, pipe network topology design planning and the like.
[ description of the drawings ]
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, and are not to be considered limiting of the invention, in which:
fig. 1 is a schematic diagram of a method for generating a topological data file of an urban gas pipe network based on pipe network simulation according to the present invention.
Fig. 2 is a schematic diagram of a pipe network topology according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a pipe network topology data file generated for a pipe network topology structure according to an embodiment of the present invention.
[ detailed description ] embodiments
The present invention will now be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided only for the purpose of illustrating the present invention and are not to be construed as limiting the present invention.
The topological structure of the urban gas pipe network consists of two parts: and the primitives and the connection relation among the primitives. Wherein; the graphic elements specifically comprise a door station, a user, a four-way joint, a three-way joint, a two-way joint, a valve, a pressure regulating station, a plug, a pipe section and the like. The topological data files of the urban gas pipe network not only require to define the topological connection relation, but also have certain requirements on the gas transmission direction, namely the upstream and downstream relation of the pipe network is also reflected in the topological structure, so that the corresponding data files are also reflected in the generated data files, and the information can not be lost;
in the simulation calculation of the pipe network, the analysis and display are often performed based on a two-dimensional plane graph or a three-dimensional stereo graph, the subsequent analysis is directly performed based on the graph in the analysis process, the graph based on the simulation of the two-dimensional plane graph is often stored by adopting a storage mode of simulation software, the storage mode is that multiple times of displayed multiple information are stored from the display angle of a primitive, so that the high requirement on the complexity of the subsequent analysis is provided, and the simulation time cost is very high; or the display of the primitives and the connection relation thereof involved in the graph is directly performed by adopting a pointer and index mode in the traditional data structure, but the simulation speed is greatly reduced by using a large amount of pointers and indexes, and meanwhile, the presentation effect of the simulation result is inconvenient, and the storage and the generation of the topological structure are completely performed from the storage angle. The data file generation method provided by the invention combines the actual characteristics of various elements related to the pipe network with the simulation and display of the topological structure, so that the positions of the actual characteristics and the connection relation of the elements in the file can accord with the overall characteristics of the pipe network, and the subsequent simulation and display are facilitated; obviously, the storage of such a data file is also a considerable boundary, namely the storage of a table file;
in the following, a detailed description is given of a method for generating a topology data file of an urban gas pipe network based on pipe network simulation, as shown in fig. 1, the method includes the following steps:
step S1: traversing a topological structure of the pipe network, and numbering each element of the pipe network; specifically, the method comprises the following steps: traversing a pipe network topological structure, numbering pipe network elements passing through the traversing process in sequence, and defining different numbers of connectors for different primitive types;
preferably: the numbering is a consecutive number, for example: 1. 2, 3 … n;
wherein: the different number is a preset number; the preset quantity corresponding to the different types of primitives is stored in a preset corresponding table, and the preset quantity corresponding to the primitives can be obtained by inquiring the preset corresponding table; in the subsequent generation process, the preset corresponding relation can be conveniently modified aiming at different types of network managers;
preferably: the user and the plug are both provided with only one connecting port which is defined as 0 port; the two-way valve, the pressure regulating station and the pipe section are respectively provided with only two connecting ports which are defined as 1 port and 2 ports; the tee joint is provided with three connecting ports which are defined as 1 port, 2 ports and 3 ports; four ports are defined as 1, 2, 3 and 4.
Preferably: the traversing mode is preorder traversing;
step S2: determining a gate station and a user, judging 1 port and 2 ports of pipelines connected with the gate station and numbering a connecting port, so that 0 port of the gate station is connected with 1 port of the pipeline section, and 0 port of the user is connected with 2 ports of the pipeline section;
the determining of the gate station and the user specifically comprises the following steps: in the traversing process, labels are set for the gate stations and the users, and the gate stations and the users are quickly positioned in the following process;
preferably: the upstream and downstream relationships are defined by ports 1 and 2 of the pipe section: the 1 port of the pipe section represents inflow and the 2 port represents outflow, and correspondingly, the door station must connect the 1 port of the pipe section and the user must connect the 2 ports of the pipe section.
Step S3: judging whether a pressure regulating station exists in the pipe network, if so, further judging the upstream and downstream of the pressure regulating station, and numbering ports 1 and 2, wherein the upstream of the pressure is 1 port, and the downstream of the pressure is 2 ports; the pressure upstream port 1 of the pressure regulating station is connected with the port 2 of the pipeline, the pressure downstream port 2 of the pressure regulating station is connected with the port 2 of the pipeline; if no voltage regulating station exists, directly jumping to the step 4;
wherein: the pressure regulating station is used as an element with a specific flow method, the pressure upstream of the pressure regulating station is defined as 1 port, and 2 ports of a pipeline are required to be connected; the pressure downstream of the pressure regulating station is defined as 2 ports, and 2 ports of the pipeline must be connected.
Preferably: in the traversing process, if the traversed graphic element is a pressure regulating station, setting a label for the pressure regulating station, and quickly positioning the door station and a user subsequently;
preferably: in the traversing process, the type of the primitive is judged while numbering is carried out, different types of labels are set for the different types of primitives, and the type of the label is an enumeration type; the labels are stored in a quick access area and are stored in a classified mode, so that the elements can be quickly accessed in the subsequent generation process;
the storage according to the types specifically comprises the following steps: performing classified storage of the primitives based on the type of the label;
the quick access area specifically includes: generating a set temporary buffer area for the data file, starting the temporary buffer area in a program space in the process of initializing a data generation process, and enabling the temporary buffer area to be always located in an actual hardware high-speed buffer area;
the making the temporary buffer always located in the actual hardware cache specifically includes: in the data generation process, increasing the access times of the data in the temporary buffer area through self meaningless access, so that the temporary buffer area is always positioned in an actual hardware high-speed buffer area;
step S4: marking the connecting ports of other elements according to the element types;
for example, the tee has three ports, port 1, port 2 and port 3; here, the placement of the ports is based on the characteristics of the elements themselves;
step S5: generating a pipe network topology data file according to the connectivity of the pipe network, the set element numbers and the connector numbers; specifically, the method comprises the following steps: creating a separate temporary file for each type of element, wherein the identifier of each temporary file is the name of the element of the type, and the identifier is used as an index of the temporary file; creating an independent record for each element of the type in each temporary file, wherein the record stores the number, the name, the number of the connecting element of each port and the like in an associated manner; then, sequentially organizing all temporary files into a data file according to a preset type sequence to serve as a generated data file;
preferably: the created separate temporary file is saved in the temporary file area;
the method for sequentially organizing all temporary files into one data file according to the preset type sequence to serve as the generated data file specifically comprises the following steps: connecting all temporary file areas into a partitioned data file in a pointer mode according to a preset type sequence; only when the data file is read or read into an external storage at last, a complete and independent data file area is created for the generated data file to store the generated data file; the temporary file area is generated temporarily, so that quick access and size expansion are facilitated, the independent data file area is not created, the finally generated data file may need to be further adjusted according to external conditions, and the data file area is generated only when the data file is finally read or read into an external storage, so that the utilization efficiency of the storage can be improved;
FIG. 2 shows a gas pipeline network topology for City A; aiming at the pipe network structure, the pipe network topology data file is generated by adopting the pipe network topology data file construction method, and the generated data file is shown as the attached figure 3.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (10)
1. A method for generating an urban gas pipe network topology data file based on pipe network simulation is characterized by comprising the following steps:
step S1: traversing a topological structure of the pipe network, and numbering each element of the pipe network;
step S2: determining a gate station and a user, judging 1 port and 2 ports of pipelines connected with the gate station and numbering a connecting port, so that 0 port of the gate station is connected with 1 port of the pipeline section, and 0 port of the user is connected with 2 ports of the pipeline section;
step S3: judging whether a pressure regulating station exists in the pipe network, if so, further judging the upstream and downstream of the pressure regulating station, and numbering ports 1 and 2, wherein the upstream of the pressure is 1 port, and the downstream of the pressure is 2 ports; the pressure upstream port 1 of the pressure regulating station is connected with the port 2 of the pipeline, the pressure downstream port 2 of the pressure regulating station is connected with the port 2 of the pipeline; if no voltage regulating station exists, directly jumping to the step 4;
step S4: marking the connecting ports of other elements according to the element types;
step S5: and generating a pipe network topology data file according to the connectivity of the pipe network, the set element numbers and the connector numbers.
2. The method for generating the city gas pipe network topology data file based on pipe network simulation according to claim 1, wherein the step S1 specifically comprises: traversing the pipe network topological structure, numbering pipe network elements passing through in the traversing process in sequence, and defining different numbers of connectors for different primitive types.
3. The method for generating the urban gas pipe network topology data file based on pipe network simulation according to claim 2, wherein the numbering is continuous numbering.
4. The method for generating the city gas pipe network topology data file based on pipe network simulation of claim 3, wherein the different number is a preset number.
5. The method for generating the topological data file of the urban gas pipe network based on pipe network simulation according to claim 4, wherein the preset number corresponding to the different types of the primitives is stored in a preset correspondence table, and the preset number corresponding to the primitives can be obtained by querying the preset correspondence table.
6. The method for generating the topological data file of the urban gas pipe network based on pipe network simulation according to claim 5, wherein a user and a plug only have one connector, which is defined as 0 connector; the two-way valve, the pressure regulating station and the pipe section are respectively provided with only two connecting ports which are defined as 1 port and 2 ports; the tee joint is provided with three connecting ports which are defined as 1 port, 2 ports and 3 ports; four ports are defined as 1, 2, 3 and 4.
7. The method for generating the urban gas pipe network topology data file based on pipe network simulation according to claim 6, wherein the traversing mode is a pre-sequence traversing.
8. The method for generating the city gas pipe network topology data file based on pipe network simulation according to claim 7, wherein the determining of the gate stations and the users specifically comprises: in the process of traversing, labels are set for the gate stations and the users, and the gate stations and the users are quickly positioned in the following process.
9. The method for generating the topological data file of the urban gas pipe network based on pipe network simulation according to claim 8, wherein the upstream and downstream relations are defined by using 1 port and 2 ports of the pipe section: the 1 port of the pipe section represents inflow and the 2 port represents outflow, and correspondingly, the door station must connect the 1 port of the pipe section and the user must connect the 2 ports of the pipe section.
10. The method for generating the city gas pipe network topology data file based on pipe network simulation of claim 9, wherein in the traversing process, if the traversed primitive is a pressure regulating station, a label is set for the pressure regulating station, and the door station and the user are quickly positioned in the following process.
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| CN117432946B (en) * | 2023-12-19 | 2024-03-08 | 上海叁零肆零科技有限公司 | Simulation-combined gradient distributed town gas intelligent odorizing method and system |
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