CN114491890A - Urban drainage system topology flow direction analysis method based on inspection well weight classification - Google Patents
Urban drainage system topology flow direction analysis method based on inspection well weight classification Download PDFInfo
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Abstract
The invention relates to a topological flow direction analysis method of an urban drainage system based on inspection well weight classification. The method comprises the following steps: the method comprises the steps of: importing the collected data into an industry standard database; the method comprises the following steps: reclassifying the tube wells according to the original data, and classifying the classification types of the inspection wells; analyzing the water potential of each well point according to the rainwater grate → the inspection well → the discharge port; user well → service well → municipal well; three sets of logic rules of the third-level municipal well → the second-level municipal well → the first-level municipal well judge that the water flow direction flows from a high water potential point to a low water potential point; thirdly, topologically constructing, calculating and analyzing the number and the system number of adjacent well grates and adjacent pipelines of each well point by taking the well point as a center, and defining a starting well point and a tail end well point; fourth, flow direction tracing: firstly, traversing all pipelines, and determining and recording the flow directions of the pipelines with inconsistent water potentials at two ends according to the water potentials from high to low; and finally, tracing the flow direction from all the initial well points and the end well points until all the flow directions are determined.
Description
Technical Field
The invention belongs to the technical field of pipe network informatization, and particularly relates to an inspection well heavy classification-based urban drainage system topology flow direction analysis method and a source tracing algorithm constructed according to heavy classification and topology characteristics.
Background
At present, data of urban drainage systems are usually spliced into a picture after being collected according to small areas, and the topological flow direction of a pipe network is manually judged in the collection process or the flow direction is not recorded. The lack of watershed systematicness and topology integrity, the manual judgment of the pipe network flow direction usually causes head breakage and flow direction conflict, the pipe network information tracing cannot be carried out, and common errors (such as adverse slope pipe sections and large pipe and small pipe joints) in the pipe network general investigation process cannot be checked.
Disclosure of Invention
The invention aims to provide a method for systematically analyzing the topological relation of the flow direction of a drain pipe. And a clear analysis map of the trend and trend of the drainage pipe network is provided for the operation and maintenance unit of the pipe network. The urban drainage system topology flow direction analysis method and the urban drainage system topology flow direction control method based on inspection well heavy classification can be used for checking the problems in the drainage pipe network data acquisition process and providing support for pipe network operation and maintenance. The invention also aims to provide a method for constructing a source tracing algorithm according to the reclassification and the topological characteristics, so as to solve the problem of flow direction topology judgment of the complex urban pipe network.
The technical scheme of the invention is that the urban drainage system topological flow direction analysis method based on inspection well heavy classification is characterized by comprising the following steps of:
the method comprises the steps of: importing the acquired five types of data of the rainwater grate, the inspection well, the discharge port, the drain pipe and the drainage channel into an industry standard database, namely 'data acquisition and warehouse building standard of outdoor drainage facilities' (SZDB/Z330-2018);
the method comprises the following steps: according to the original data, the inspection wells are classified into wells in user wells or cells, wells in which user wells or cells are connected to municipal wells or branches, wells in secondary municipal wells or secondary main flows, wells in primary municipal wells or main flows; analyzing the water potential of each well point according to a rainwater grate- → inspection well → discharge port; user well → service well → municipal well; third-level municipal well → second-level municipal well → first-level municipal well; three sets of logic rules judge that the water flow direction flows from a high water potential point to a low water potential point;
thirdly, topology construction is carried out, the number and the system number of adjacent well grates and adjacent pipelines of each well point are calculated and analyzed by taking the well point as a center according to original data, and a starting well point and a tail end well point are defined; the initial well is a well point with the number of adjacent pipelines being 1 and not being a discharge port, and the tail end well point is a well point with the reclassification property being a discharge port;
fourth, flow direction tracing: firstly, traversing all pipelines, and determining and recording the flow directions of the pipelines with inconsistent water potentials at two ends according to the water potentials from high to low; meanwhile, if one end of the pipeline has a starting well point or a tail end well point, the well point is also determined to be recorded; and finally, tracing the flow direction from all the initial well points and the end well points until all the flow directions are determined.
The invention also provides a technical solution of the method for controlling the topological flow direction traceability of the urban drainage system based on inspection well heavy classification, which is characterized by comprising the following steps:
acquiring a next starting well point;
secondly, judging whether the flow direction of adjacent well points conforms to the rainwater grate → the inspection well → the discharge port; user well → service well → municipal well; three sets of logic rules of three-level municipal wells → two-level municipal wells → one-level municipal wells are adopted, and if the logic rules are judged to be yes, the logic rules are returned to the step of the first step if the flow directions of all pipelines are correctly judged; if not, the point record mark is returned to the next starting point for judgment and the next step is carried out;
thirdly, further judging whether the flow directions of all the well pipes meet the logic rules, and if not, returning to the step; if it is determined whether or not, the process is terminated by confirmation.
The invention also discloses a technical solution for constructing a tracing algorithm according to reclassification and topological characteristics, which is characterized in that the tracing algorithm comprises the following formula:
i.e., the traversal process of the decision tree, determines the following three conditions:
1) path: the selection that has been made;
2) selecting a list: the choices that can be made currently;
3) and (4) finishing conditions: reaching the bottom layer of the decision, no conditions are selected to be made;
the core of the tracing algorithm is the recursion in the for loop, the selection is made before the recursive call, and the selection is cancelled after the recursive call.
Compared with the prior art, the invention has the beneficial effects that:
the flow direction analysis method provided by the invention can be used for efficiently and conveniently analyzing the topological flow direction of the pipe network in the area, and brings great convenience and visibility for the development of daily work of drainage pipe network management and operation and maintenance units. Meanwhile, the method is beneficial to the design and planning unit to carry out comprehensive problem analysis and the like on the drainage pipe network in the region.
Drawings
FIG. 1 is a flow chart of a topological flow direction analysis method of an urban drainage system based on inspection well weight classification according to the invention;
FIG. 2 is a flow chart of the topological flow direction traceability control method of the urban drainage system based on inspection well heavy classification according to the invention;
FIG. 3 is a schematic view of the topological flow direction tracing of the urban drainage system based on manhole heavy classification according to the invention;
in the figure: 1. a starting well and a rainwater grate; 2. a starting well and a rainwater grate; 3. a starting well and a rainwater grate; 4. other wells, municipal wells; 5. other wells, service wells; 6. other wells, user wells; 7. other wells, municipal wells; 8. other wells, municipal wells; 9. a starting well and a rainwater grate; 10. a terminal well, a drain;
FIG. 4 is a schematic flow diagram of a topological flow of an urban drainage system based on manhole heavy classification before correction;
FIG. 5 is a schematic view of the topological flow direction of the urban drainage system based on manhole heavy classification after being corrected.
Detailed Description
The invention will be described in more detail below with reference to the accompanying drawings:
referring to fig. 1, the method for analyzing the topological flow direction of the urban drainage system based on manhole reclassification comprises the following steps:
the method comprises the steps of: importing the acquired five types of data of the rainwater grate, the inspection well, the discharge port, the drain pipe and the drainage channel into an industry standard database, namely 'data acquisition and warehouse building standard of outdoor drainage facilities' (SZDB/Z330-2018);
the method comprises the following steps: according to the original data, the inspection wells are classified into wells in user wells or cells, wells in which user wells or cells are connected to municipal wells or branches, wells in secondary municipal wells or secondary main flows, wells in primary municipal wells or main flows; analyzing the water potential of each well point according to the rainwater grate → the inspection well → the discharge port; user well → service well → municipal well; three sets of logic rules of the three-level municipal well → the two-level municipal well → the first-level municipal well determine that the water flow direction flows from a high water potential point to a low water potential point, and finally the water potential determination standard is as shown in the following table.
Well point water potential meter
| Well point classification | Water potential value | Description of the |
| Discharge port | ||
| 1 | Discharge outlet of final flow channel | |
| First-level |
2 | Municipal well on main stream |
| Second grade municipal administration well | 3 | Municipal well on secondary main flow |
| Tertiary |
4 | Municipal well on branch main flow |
| Well for connecting |
5 | Drainage household inserts well of municipal administration |
| User well | 6 | Well for draining |
| Rainwater grate | ||
| 7 | Rainwater | |
| Water inlet | ||
| 8 | Floor drain water inlet | |
| |
8 | Vertical pipe point |
Thirdly, topology construction is carried out, the number and the system number of adjacent well grates and adjacent pipelines of each well point are calculated and analyzed by taking the well point as a center according to original data, and a starting well point and a tail end well point are defined; the initial well is a well point with the number of adjacent pipelines being 1 and not being a discharge port, and the tail end well point is a well point with the reclassification property being a discharge port;
fourth, flow to tracing to the source: firstly, traversing all pipelines, and determining and recording the flow directions of the pipelines with inconsistent water potentials at two ends according to the water potentials from high to low; meanwhile, if one end of the pipeline has a starting well point or a tail end well point, the well point is also determined to be recorded; and finally, tracing the flow direction from all the initial well points and the end well points until all the flow directions are determined.
Referring to fig. 2, the method for controlling the topological flow direction tracing of the urban drainage system based on manhole reclassification includes the following steps:
acquiring a next starting well point;
secondly, judging whether the flow direction of adjacent well points conforms to the rainwater grate → the inspection well → the discharge port; user well → service well → municipal well; three sets of logic rules of the third-level municipal well → the second-level municipal well → the first-level municipal well are adopted, and if the logic rules are judged to be yes, the flow direction of all the pipelines is judged correctly; if not, marking the point record and returning to obtain the next starting point for judgment;
thirdly, further judging whether the flow directions of all the well pipes meet the logic rules, and if not, returning to the step; if yes, the process is terminated with confirmation.
Constructing a traceability algorithm according to the reclassification and the topological characteristics, wherein the traceability algorithm comprises the following formula:
i.e., the traversal process of the decision tree, determines the following three conditions:
1) path: the selection having been made
2) Selecting a list: currently available choices
3) End condition (recursion exit): at the bottom of the decision, no conditions are selected for doing
The core of the tracing algorithm is the recursion in the for loop, before the recursive call "make a selection", and after the recursive call "deselect".
Referring to fig. 3, the calculation process is as follows:
1→4，2→5，3→6，9→8，10←8，4→7，7→8，8←5，5←6
the above-mentioned embodiments are only preferred embodiments of the present invention, and all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (3)
1. A topological flow direction analysis method of an urban drainage system based on inspection well weight classification is characterized by comprising the following steps:
the method comprises the steps of: importing the acquired five types of data of the rainwater grate, the inspection well, the discharge port, the drain pipe and the drainage channel into an industry standard database, namely 'data acquisition and warehouse building standard of outdoor drainage facilities' (SZDB/Z330-2018);
the method comprises the following steps: according to the original data, the inspection wells are classified into wells in user wells or cells, wells in which user wells or cells are connected to municipal wells or branches, wells in secondary municipal wells or secondary main flows, wells in primary municipal wells or main flows; analyzing the water potential of each well point according to a rainwater grate- → inspection well → discharge port; user well → service well → municipal well; third-level municipal well → second-level municipal well → first-level municipal well; three sets of logic rules judge that the water flow direction flows from a high water potential point to a low water potential point;
thirdly, topology construction is carried out, the number and the system number of adjacent well grates and adjacent pipelines of each well point are calculated and analyzed by taking the well point as a center according to original data, and a starting well point and a tail end well point are defined; the initial well is a well point with the number of adjacent pipelines being 1 and not being a discharge port, and the tail end well point is a well point with the reclassification property being a discharge port;
fourth, flow direction tracing: firstly, traversing all pipelines, and determining and recording the flow directions of the pipelines with inconsistent water potentials at two ends according to the water potentials from high to low; meanwhile, if one end of the pipeline has a starting well point or a tail end well point, the well point is also determined to be recorded; and finally, tracing the flow direction from all the initial well points and the end well points until all the flow directions are determined.
2. A control method for topological flow direction tracing of an urban drainage system based on inspection well heavy classification is characterized by comprising the following steps:
acquiring a next starting well point;
secondly, judging whether the flow direction of adjacent well points conforms to the rainwater grate → the inspection well → the discharge port; user well → service well → municipal well; three sets of logic rules of three-level municipal wells → two-level municipal wells → one-level municipal wells are adopted, and if the logic rules are judged to be yes, the logic rules are returned to the step of the first step if the flow directions of all pipelines are correctly judged; if not, the point record mark is returned to the next starting point for judgment and the next step is carried out;
thirdly, further judging whether the flow directions of all the well pipes meet the logic rules, and if not, returning to the step; if it is determined whether or not, the process is terminated by confirmation.
3. A traceability algorithm is constructed according to reclassification and topological characteristics, and is characterized by comprising the following formula:
i.e., the traversal process of the decision tree, determines the following three conditions:
1) path: the selection that has been made;
2) selecting a list: the choices that can be made currently;
3) and (4) finishing conditions: reaching the bottom layer of the decision, no conditions are selected to be made;
the core of the tracing algorithm is the recursion in the for loop, the selection is made before the recursive call, and the selection is cancelled after the recursive call.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115239268A (en) * | 2022-06-16 | 2022-10-25 | 中电建(佛山)建设有限公司 | Online data acquisition and analysis platform for water affair comprehensive examination and application method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010044659A (en) * | 2001-03-14 | 2001-06-05 | 김계현 | System and method for sewerage management using a gis |
| CN113944887A (en) * | 2021-10-25 | 2022-01-18 | 中国电建集团中南勘测设计研究院有限公司 | Pipe network monitoring and tracing method, system, equipment and medium based on directed graph traversal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010044659A (en) * | 2001-03-14 | 2001-06-05 | 김계현 | System and method for sewerage management using a gis |
| CN113944887A (en) * | 2021-10-25 | 2022-01-18 | 中国电建集团中南勘测设计研究院有限公司 | Pipe network monitoring and tracing method, system, equipment and medium based on directed graph traversal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115239268A (en) * | 2022-06-16 | 2022-10-25 | 中电建(佛山)建设有限公司 | Online data acquisition and analysis platform for water affair comprehensive examination and application method thereof |
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