CN112380766B - Watershed waterlogging amount determining and displaying method, system, equipment and storage medium - Google Patents
Watershed waterlogging amount determining and displaying method, system, equipment and storage medium Download PDFInfo
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Abstract
The invention discloses a method, a system, equipment and a storage medium for determining waterlogging amount of a river basin, wherein the determining method comprises the following steps: dividing a plurality of land types from the target basin in response to the land type dividing instruction; determining an area of each land type in response to the area determination instruction; determining a runoff coefficient of each land type in response to the runoff coefficient determining instruction; responding to a drainage capacity acquisition instruction, and acquiring the drainage capacity of a drainage pipeline in the target river basin; responding to a regulation capacity acquisition instruction, and acquiring the regulation capacity in the target flow field; and determining the waterlogging amount of the target river basin in response to the waterlogging amount determining instruction. According to the method, the data required by the calculation of the waterlogging water quantity can be quickly obtained through the response to the land type dividing instruction, the area determining instruction, the runoff coefficient determining instruction, the drainage capacity obtaining instruction and the regulation capacity obtaining instruction, so that the waterlogging water quantity is obtained, the requirement on basic data is low and quick, and the method can be widely applied to the field of waterlogging prevention and control informatization.
Description
Technical Field
The invention relates to the field of waterlogging prevention and control informatization, in particular to a method, a system, equipment and a storage medium for determining and displaying waterlogging amount of a river basin.
Background
Waterlogging refers to the phenomenon that ponding disasters occur in a river basin (such as urban areas) due to strong precipitation or continuous precipitation exceeding drainage capacity of the river basin. Waterlogging occurs in most cities, especially coastal areas, and is often caused by short-time heavy rainfall such as typhoons, storms and other weather. Urban inland inundation not only affects the daily life and travel traffic of urban residents, but also brings economic loss and endangers the life safety of people in serious cases.
The control of waterlogging in watershed such as city is generally realized by increasing the regulation and/or drainage capacity of the watershed, which is related to the waterlogging amount of the watershed. Generally, the larger the storage amount of the watershed is, the smaller the waterlogged water amount of the watershed is; the stronger the drainage capacity of the watershed, the smaller the waterlogged water volume of the watershed. Therefore, the waterlogging amount of the drainage basin is acquired first, which is helpful for determining the storage regulation and drainage capacity of the drainage basin, so that the waterlogging prevention and control work of the drainage basin is better assisted.
The related technology is used for calculating the application of the waterlogging amount (such as APP, applet and the like), and most of the application takes basic data such as historical waterlogging data of a river basin as a sample, adopts methods such as machine learning and the like to train or build a complex waterlogging amount calculation model in advance, and then adopts the waterlogging amount calculation model to calculate the waterlogging amount of the river basin. However, the method has high requirement on basic data, a large amount of iterative operation is needed in the calculation process, the calculation efficiency is low, the problem is more obvious on a terminal platform with low calculation capability (such as embedded equipment and the like), and the problem is difficult to run on the terminal platform with low calculation capability in real time.
Disclosure of Invention
The invention aims at: the method, the system, the equipment and the storage medium for determining and displaying the waterlogging amount of the river basin can reduce the requirement of basic data and have high calculation efficiency.
The technical scheme adopted by one aspect of the invention is as follows:
a method for determining the waterlogging amount of a river basin comprises the following steps:
dividing a plurality of land types from the target basin in response to the land type dividing instruction;
determining an area of each of the land types in response to an area determination instruction;
determining a runoff coefficient of each land type in response to the runoff coefficient determining instruction;
responding to a drainage capacity acquisition instruction, and acquiring the drainage capacity of the drainage pipeline in the target river basin;
responding to a regulation capacity acquisition instruction, and acquiring the regulation capacity in the target flow field;
and determining the waterlogging amount of the target river basin in response to a waterlogging amount determining instruction, wherein the waterlogging amount of the target river basin is determined according to rainfall data in the area, the runoff coefficient, the drainage capacity, the regulation capacity and the target river basin.
Further, the land type division instruction comprises a satellite base map acquisition instruction and a profile drawing instruction;
the partitioning of the plurality of land types from the target basin in response to the land type partitioning instruction includes:
responding to the satellite base map acquisition instruction, acquiring a satellite base map of the target river basin and displaying the satellite base map in an interactive application;
and responding to the outline drawing instruction, drawing outlines of the land types one by one in a drawing area of the interactive application according to the proportion of the satellite base map by taking the satellite base map as a reference, and obtaining an outline map of the target river basin.
Further, the determining, in response to the area determining instruction, an area of each of the land types includes:
responding to an area determining instruction, and obtaining the drawing area of each land type in the drawing area according to the outline drawing of the target river basin;
and obtaining the actual area of each land type according to the proportion of the drawn area and the satellite base map, and displaying the actual area of each land type in the interactive application.
Further, the runoff coefficient determining instruction comprises a runoff coefficient range display instruction and a runoff coefficient selecting instruction;
the determining, in response to the runoff coefficient determining instruction, a runoff coefficient for each of the land types includes:
responding to the runoff coefficient range display instruction, and displaying the value range of each runoff coefficient of the land type in the interactive application;
and responding to the runoff coefficient selection instruction, and displaying the selection result of the runoff coefficient of each land type in the interactive application.
Further, the rainfall data comprises rainfall in a heavy rain reproduction period;
the determining the waterlogging amount of the target river basin in response to the waterlogging amount determining instruction comprises the following steps:
determining the runoff speed of the target river basin according to the rainfall in the heavy rain reproduction period and the drainage capacity;
determining the runoff amount generated in the target river basin according to the runoff speed, the area and the runoff coefficient;
and determining the waterlogging amount of the target river basin according to the runoff amount and the regulation capacity, and outputting the waterlogging amount to the interactive application for display.
Further, the land type includes at least one of a building roof, a road, a square, a bare land, a water surface, a park, or a green land.
The technical scheme adopted by the other aspect of the invention is as follows:
a display method comprising the steps of:
obtaining waterlogging water quantity of a target river basin by the determining method;
and displaying the waterlogging amount of the target river basin.
The technical scheme adopted by the other aspect of the invention is as follows:
a drainage basin waterlogging amount determination system, comprising:
a land type dividing unit for dividing a plurality of land types from the target basin in response to a land type dividing instruction;
an area determining unit configured to determine an area of each of the land types in response to an area determining instruction;
a runoff coefficient determination unit configured to determine a runoff coefficient of each of the land types in response to a runoff coefficient determination instruction;
a drainage capacity acquisition unit for acquiring the drainage capacity of the drainage pipeline in the target river basin in response to a drainage capacity acquisition instruction;
the energy regulation capacity acquisition unit is used for responding to an energy regulation capacity acquisition instruction and acquiring the energy regulation capacity in the target flow field;
and the waterlogging amount determining unit is used for determining the waterlogging amount of the target river basin in response to a waterlogging amount determining instruction, and the waterlogging amount of the target river basin is determined according to rainfall data in the area, the runoff coefficient, the drainage capacity, the regulation capacity and the target river basin.
The technical scheme adopted by the other aspect of the invention is as follows:
a computer device, comprising:
at least one processor;
at least one memory for storing at least one program;
the at least one program, when executed by the at least one processor, causes the at least one processor to implement the determination method or the display method described previously.
The technical scheme adopted by the other aspect of the invention is as follows:
a computer-readable storage medium in which a processor-executable program is stored, which when executed by the processor is for implementing the aforementioned determination method or display method.
The beneficial effects of the invention are as follows: according to the method, the system, the equipment and the storage medium for determining and displaying the waterlogging amount of the river basin, the area, the runoff coefficient, the drainage capacity and the regulation capacity required by the calculation of the waterlogging amount can be rapidly obtained through responding to the land type dividing instruction, the area determining instruction, the runoff coefficient determining instruction, the drainage capacity and the regulation capacity obtaining instruction, and further the waterlogging amount is obtained in response to the waterlogging amount determining instruction, complex waterlogging amount model training is not involved, the requirement on basic data is low, the waterlogging amount of a target river basin can be rapidly and accurately determined through responding to various instructions, the calculation efficiency is high, the requirement on the calculation capacity of a terminal platform is reduced, and the method and the system can be operated on the terminal platform with low calculation capacity in real time.
Drawings
FIG. 1 is a schematic diagram of an implementation environment of a method for determining the waterlogging amount in a river basin according to an embodiment of the present invention;
FIG. 2 is a flow chart showing steps of a method for determining the waterlogging amount in a river basin according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a drainage basin waterlogging amount determination interface according to an embodiment of the present invention;
FIG. 4 is a schematic plan view of a target basin according to an embodiment of the present invention;
FIG. 5 is a flowchart showing steps of a display method according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a drainage basin waterlogging determining system according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a computer device according to an embodiment of the present invention.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
The terms "first," "second," "third," and "fourth" and the like in the description and in the claims of this application and in the drawings, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The application (such as APP, applet, etc.) for calculating the waterlogging amount in the related art mostly takes basic data such as historical waterlogging data of a river basin as a sample, adopts methods such as machine learning, etc. to train or build a relatively complex waterlogging amount calculation model in advance, and then adopts the waterlogging amount calculation model to calculate the waterlogging amount of the river basin, so that the complex waterlogging amount calculation model needs to be trained or built, the requirement on the basic data is high, a large amount of iterative operation is required in the calculation process, the calculation efficiency is low, and real-time operation on a terminal platform with low calculation capability is difficult.
Therefore, the embodiment of the invention provides a waterlogging amount determining method of a river basin, which utilizes a top-down process calculation mode, and can quickly acquire the area, the runoff coefficient, the drainage capacity, the regulation capacity and other data required by the calculation of the waterlogging amount by responding to a land type dividing instruction, an area determining instruction, a runoff coefficient determining instruction, a drainage capacity acquiring instruction and a regulation capacity acquiring instruction, so as to obtain the waterlogging amount in response to the waterlogging amount determining instruction, does not involve complex waterlogging amount model training, has low requirement on basic data, can quickly and accurately determine the waterlogging amount of a target river basin by responding to various instructions, reduces the requirement on the calculation capacity of a terminal platform, and can run on the terminal platform with low calculation capacity in real time. The determination method can be applied to the terminal, the server or the implementation environment formed by the terminal and the server. In addition, the determination method may also be software running in a terminal or a server, such as an application program having a face living body detection function, or the like. The terminal may be, but is not limited to, a smart phone, a tablet computer, a notebook computer, a desktop computer, a smart speaker, a smart watch, etc. The server can be an independent physical server, a server cluster or a distributed system formed by a plurality of physical servers, and can also be a cloud server for providing cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDNs, basic cloud computing services such as big data and artificial intelligent platforms and the like.
Fig. 1 is an implementation environment of a method for determining a waterlogging amount in a river basin according to an embodiment of the present application. The implementation environment may include a computer device 101, and the computer device 101 may have a function of detecting an operation instruction input or triggered by a user. The operation instructions can be land type dividing instructions, area determining instructions, runoff coefficient determining instructions, drainage capacity obtaining instructions, regulation capacity obtaining instructions, waterlogging water quantity determining instructions and other operation instructions triggered by clicking, long-pressing, voice, drop-down menu selection or drop-down list selection and other modes. After the user inputs or triggers the operation instruction, the computer device 101 may perform a corresponding operation (including but not limited to land type division, contour drawing, area calculation and conversion, runoff coefficient selection, drainage capacity acquisition, regulation capacity acquisition, runoff speed and runoff amount, and water logging amount calculation) according to the operation instruction, so as to implement a water logging amount determining function of a river basin. In addition, the computer device 101 may also display intermediate data such as area and runoff coefficient in the determining process of the waterlogging amount of the river basin, and the finally determined waterlogging amount, so as to facilitate the observation and further utilization of the user. Those skilled in the art will appreciate that the computer device 101 may be a terminal or a server, which is not limited in this embodiment of the present application. In fig. 1, a smart phone 1011, a tablet 1012, and a desktop 1013 are all exemplary embodiments of terminals; and 1014 is a server.
The method for determining the waterlogging amount of the river basin can be applied to various scenes.
For example, in a city waterlogging risk analysis scenario:
after the waterlogging amount of the city is rapidly determined by the method for determining the waterlogging amount of the river basin, the waterlogging amount can be compared with the preset waterlogging risk threshold, whether the city has the waterlogging risk exceeding the waterlogging risk threshold is analyzed, and effective countermeasures can be adopted in time.
As another example, in urban inland inundation control scenarios:
after the water logging amount of the city is rapidly determined by the water logging amount determining method of the river basin, corresponding urban water logging prevention measures, such as increasing the regulation and storage amount of urban water surfaces, lake surfaces and the like or improving the drainage capacity of urban drainage pipelines and the like, can be further determined under the condition that the water logging amount exceeds the maximum water amount value (namely a threshold value) allowed by urban water logging prevention.
For another example, in the urban drainage pipeline optimization engineering construction scene:
after the waterlogging amount of the city is rapidly determined by the method for determining the waterlogging amount of the river basin, an optimization scheme of the urban drainage pipeline can be determined according to the waterlogging amount so as to reduce the waterlogging amount as much as possible, and then construction and construction of an optimization project of the urban drainage pipeline are guided according to the optimization scheme.
The embodiment of the invention discloses a watershed waterlogging amount determining method which can be executed by computer equipment shown in figure 1, and particularly can be executed by interactive application with a watershed waterlogging amount determining function, which is installed or operated on the computer equipment. As shown in fig. 2, the method includes the following steps S201 to S206:
s201, responding to a land type dividing instruction, and dividing a plurality of land types from a target river basin;
specifically, the target river basin is a complete drainage basin with independent drainage boundaries, and different land types such as lakes, river courses, building roofs, roads, greenbelts, bare lands and the like are arranged in the basin. The target river basin can be selected according to administrative areas or natural areas, wherein natural areas refer to areas with relative consistency of respective natural geographic components (such as terrains, river courses and the like) within a certain range. The type of land may include at least one of a building roof, a road, a square, a bare land, a water surface (e.g., lake, river, etc.), a park, or a green land.
In one possible implementation manner, the interactive application with the function of determining the waterlogging amount of the drainage basin can be an independently operated interactive application, the computer equipment (such as a mobile phone and other terminals) installs the interactive application, logs in the interactive application based on the user identification, and performs interaction between the user and the computer equipment through the interactive application to determine the waterlogging amount of the drainage basin.
In another possible implementation, the interactive application with the watershed waterlogging amount determining function may be a sub-application running in an internet application, which may be an instant messaging application, an electronic payment application, a map application, and other applications, etc. The sub-application can be public numbers or applets in the Internet application, the public numbers are in an interactive mode, and the omnibearing communication and interaction with concerned users of the public numbers can be realized through characters, pictures, voices, videos and the like. An applet is an application that can be used without downloading an installation. The computer equipment (such as a mobile phone and other terminals) installs an Internet application, logs in the Internet application based on the user identification, logs in the sub-application through the user identification of the logged-in Internet application, thereby running the sub-application in the Internet application, and realizing the determination of the waterlogging water volume in the river basin through the interaction between the user and the computer equipment through the sub-application.
Optionally, an interactive application with a drainage basin waterlogging amount determining function may display a drainage basin waterlogging amount determining interface (i.e. a front end), through which interaction between a user and a computer device is achieved (e.g. triggering the foregoing intermediate data such as an operation instruction, a display area, a runoff coefficient, etc. and finally determining the drainage basin amount, etc.). The interactive application can also comprise a background server which is used for carrying out land type division, contour drawing, area calculation and conversion, runoff coefficient selection, drainage capacity acquisition, regulation capacity acquisition, runoff speed and runoff amount, waterlogging water amount calculation and the like in response to the operation instruction.
In the embodiment of the invention, a user can input or trigger the land type dividing instruction in the watershed waterlogging amount determining interface in a clicking, long-time pressing, voice and other modes. The land type dividing instruction can comprise a satellite base map obtaining instruction and a profile drawing instruction, and can be triggered by clicking, pressing a corresponding control or button in a watershed waterlogging amount determining interface by a user. Accordingly, step S201 may be further divided into the following steps S2011 and S2012:
s2011, responding to a satellite base map acquisition instruction, acquiring a satellite base map of a target river basin and displaying the satellite base map on an interactive application;
illustratively, in the waterlogging amount determination interface as shown in fig. 3, the satellite bottom map of the target area may be acquired by clicking the satellite bottom map acquisition button 301 to trigger a satellite bottom map acquisition button instruction. The satellite footprint may be a screenshot of a satellite map from the internet or a third party application (e.g., google map, hundred degree map), etc.
And S2012, responding to the outline drawing instruction, and drawing outlines of all land types one by one in a drawing area of the interactive application according to the proportion of the satellite base drawing by taking the satellite base drawing as a reference to obtain an outline drawing of the target river basin.
In the embodiment of the invention, the outline drawing of the target river basin can be drawn in a similar way to the outline drawing of third-party drawing software (such as CAD drawing software). Taking third party drawing software as CAD drawing software as an example, the outline drawing mode is as follows: firstly, a satellite map screenshot of the target area in equal proportion is obtained through a satellite base map obtaining instruction and is used as a base map to be input into CAD drawing software, and then, the satellite base map is used as a reference in the CAD drawing software to manually draw a contour map (namely, a drawing edge) of each land type. In one possible implementation, the interactive application with the watershed waterlogging amount determining function may call CAD drawing software through an application program interface to obtain a drawn profile. In another possible implementation, the interactive application with the watershed waterlogging amount determination function may directly integrate the contour drawing function of CAD drawing software for the user to use when needed.
Illustratively, in the waterlogging amount determination interface as shown in fig. 3, the profile drawing instruction may be triggered by clicking the profile drawing button 302, so that the profiles of the respective land types of the target area are drawn in the drawing area 303 at a moderate scale, and finally a profile map of the target drainage basin is composed.
S202, responding to the area determining instruction, and determining the area of each land type.
Step S202 may be further divided into the following steps S2021 and S2022:
step S2021, in response to the area determination instruction, obtains a drawing area of each land type in the drawing area according to the contour map of the target basin.
As previously described, the area determination instructions may be triggered by a user by clicking, pressing, or the like.
Illustratively, in the waterlogging amount determination interface as shown in fig. 3, the area determination instruction may be triggered by clicking the area determination button 304, thereby determining the drawing area in the drawing area 303 for each land type. The drawing area can be calculated according to the shape characteristics of the length, the width and the like of the contour of each land type.
Step S2022, according to the ratio of the drawn area and the satellite base map, the actual area of each land type is obtained, and the actual area of each land type is displayed in the interactive application.
After the drawing area of each land type is obtained, the actual area of each land type can be obtained through conversion according to the proportion of the satellite base map (namely, the scaling proportion between the map and the actual area), and the actual area can be displayed in interactive application so as to be convenient for a user to watch.
Illustratively, in the waterlogging amount determination interface as shown in fig. 3, the actual area of each land type may be displayed in the result display area 305, such as "the area of lake is XXX", "the area of river is XXX", and so on.
S203, determining the runoff coefficient of each land type in response to the runoff coefficient determining instruction.
According to priori knowledge, in the rain process, rainfall falls into the river basin scope first, rainfall generates runoff through infiltration, and the runoff is discharged to the downstream river course through drainage pipe system, and then discharges outside the stream, and different land types's runoff speed or runoff can also be different. For this reason, the embodiment of the application needs to determine the runoff coefficient of each land type first, so as to facilitate the subsequent calculation or determination of the waterlogging amount.
According to the 3.2.2 requirements of the outdoor drainage design Specification (GB 50014-2006), the runoff coefficients of different land types are required to meet a specific value range, for example, the runoff coefficient of a building roof is 0.85-0.95; the runoff coefficient of the concrete or asphalt pavement or square is 0.85-0.95; the runoff coefficient of the non-paved soil road (bare land) is 0.25-0.35; the water surface runoff coefficient is 1; the runoff coefficient of the park or green land is 0.1-0.2.
Thus, step S203 can be further subdivided into step S2031 and step S2032 as follows.
Step S2031, in response to the runoff coefficient range display instruction, displaying the value range of the runoff coefficient of each land type in the interactive application.
As previously described, the runoff coefficient range display instruction may be triggered by a user by clicking, pressing, or the like.
Illustratively, in the waterlogging amount determination interface as shown in fig. 3, the runoff coefficient range display instruction may be triggered by clicking the runoff coefficient range display button 306, thereby displaying the runoff coefficients of the aforementioned land types.
Step S2032, in response to the runoff coefficient selection instruction, displaying a selection result of the runoff coefficient of each land type in the interactive application.
As previously described, the runoff coefficient selection instruction may be triggered by a user by clicking, selecting from a drop down menu, manually inputting by the user, and the like.
In the waterlogging amount determining interface shown in fig. 3, the user may trigger a runoff coefficient selection instruction by clicking a runoff coefficient selection button 3071, thereby obtaining a candidate numerical value list of the runoff coefficient, and displaying a selection result of the user on the candidate numerical value list. Of course, the user may also input the desired runoff coefficients directly in the runoff coefficient input box 3072 and display them in the result display area 305.
Optionally, to ensure the reliability and safety of the selection result, the runoff coefficient refers to the "outdoor drainage design Specification" to select a high value (i.e., near or equal to the upper limit of the range of values).
S204, responding to a drainage capacity acquisition instruction, and acquiring the drainage capacity of the drainage pipeline in the target river basin.
As previously described, the drainage capacity acquisition instruction may be triggered by a user by clicking, pressing, or the like.
Illustratively, in the waterlogging amount determination interface as shown in fig. 3, the drainage capacity of the drainage pipe may be acquired by clicking the drainage capacity acquisition button 308 to trigger a drainage capacity acquisition instruction. Alternatively, the drainage capacity of the drainage pipe may be preset to a default value, which is displayed in the result display area 305 as the drainage capacity of the drainage pipe when the drainage capacity acquisition button 308 is activated.
S205, responding to a regulation capacity acquisition instruction, and acquiring the regulation capacity in the target flow field.
As previously described, the tune capacity acquisition command may be triggered by a user by clicking, pressing, or the like.
Illustratively, in the waterlogging amount determination interface as shown in fig. 3, the tuning capacity calculation may be performed by clicking the tuning capacity acquisition button 309 to trigger a tuning capacity acquisition command. Alternatively, the capacity may be equal to the area of the water surface of a lake, river, etc. multiplied by the depth of the regulated water. The water depth of the water surface of lakes, river courses and the like is generally 1-2 m.
S206, determining the waterlogging amount of the target river basin in response to the waterlogging amount determining instruction.
As previously mentioned, the waterlogging amount determination instruction may be triggered by a user by clicking, pressing, etc.
Illustratively, in the water logging amount determination interface as shown in fig. 3, the water logging amount determination instruction may be triggered by clicking the water logging amount determination button 310, thereby obtaining the water logging amount of the target river basin.
Alternatively, the rainfall data includes the rainfall amount of the heavy rain reproduction period P2, and the step S206 may specifically include the following steps S2061, S2062, and S2063:
s2061, determining the runoff speed of the target river basin according to the rainfall in the heavy rain reproduction period and the drainage capacity of the drainage pipeline.
Specifically, the runoff velocity of the target river basin may be a difference between the rainfall in the period of heavy rain reproduction and the drainage capacity of the drainage pipe.
S2062, determining the runoff amount generated in the target river basin according to the runoff speed of the target river basin, the area of each land type and the runoff coefficient of each land type.
Specifically, the runoff amount generated within the target basin may be a product of a sum of the area of each land type and a product of the runoff coefficient of each land type and a runoff speed and time of the target basin.
S2063, determining the waterlogged water quantity of the target river basin according to the runoff quantity generated in the target river basin and the regulation capacity of the target river basin, and outputting the waterlogged water quantity to the interactive application for display.
According to the definition of the waterlogging amount, the waterlogging amount of the target river basin is equal to the difference value between the runoff amount generated in the target river basin and the regulation capacity of the target river basin.
Similarly, the amount of waterlogged water in the target basin may also be displayed in results display area 305.
By way of example, assuming that the drainage capacity k of the drainage pipe shown in fig. 4 (in fig. 4, 401 road, 402 is water surface, 403 is roof, 404 is bare, 405 is green, A, B, C and D are drainage pipes, 406 is river channel) is 50mm/h by the previous steps S201 to S205, the area of the land type in the drainage area and the runoff coefficient information are shown in the following table 1, the water surface regulation depth is 1.5m, and the rainfall t=100 mm/h in the rainstorm reproduction period is calculated for the waterlogging amount in the one hour rainfall.
TABLE 1
| Sequence number | Land type | Area (ha) | Runoff coefficient |
| 1 | Roof surface | Area a1=77 | 0.95 |
| 2 | Road | Area a2=15 | 0.95 |
| 3 | Bare land | Area a3=3 | 0.35 |
| 4 | Surface of water | Area a4=2 | 1 |
| 5 | Greenbelt | Area a5=3 | 0.2 |
The specific calculation process of step S206 (i.e. the processing process corresponding to the background server of the interactive application) is as follows:
(1) Calculating the runoff velocity w=t-k=100-50=50 mm/h for the basin;
(2) Calculating the amount of runoff v=10×w (a1×ψ1+a2×ψ2+a3×ψ3+a4×ψ4+a5×ψ5) 1=10×50 (77×0.95+15×0.95+3×0.35+2×1+3×0.2) = 45525m generated in the stream domain 3 Wherein 10 is the sum of t and the areaFor the conversion coefficient obtained for m, 10=1×0.001× 10000,0.001 is used for mm conversion to m, and 10000 is used for ha conversion to m.
(3) Calculating the waterlogged water volume in the flow field v2=v-v1= 45525-10000×2×1.5= 15525m 3 Where V1 is the capacity in the flow field, v1=water surface area a4×water surface regulation depth.
Referring to fig. 5, the embodiment of the invention further provides a display method, which includes the following steps:
s501, acquiring waterlogging amount of a target river basin by a determining method shown in FIG. 2;
s502, displaying the waterlogged water quantity of the target river basin.
In the embodiment of the invention, the display method can display the waterlogging amount acquired by the embodiment of the determination method shown in fig. 2, is convenient for a user to watch, and has the beneficial effects of the determination method shown in fig. 2.
Referring to fig. 6, the embodiment of the invention further provides a drainage basin waterlogging amount determining system, which comprises:
a land type dividing unit 601 for dividing a plurality of land types from the target basin in response to a land type dividing instruction;
an area determination unit 602 for determining an area of each land type in response to the area determination instruction;
a runoff coefficient determination unit 603 for determining a runoff coefficient of each land type in response to the runoff coefficient determination instruction;
a drainage capacity acquisition unit 604 for acquiring the drainage capacity of the drainage pipeline in the target river basin in response to the drainage capacity acquisition instruction;
a regulation capacity acquisition unit 605 for acquiring a regulation capacity within the target flow field in response to a regulation capacity acquisition instruction;
and a waterlogging amount determining unit 606 configured to determine a waterlogging amount of the target river basin in response to the waterlogging amount determining instruction, wherein the waterlogging amount of the target river basin is determined according to an area of each land type, a runoff coefficient of each land type, a drainage capacity of the drainage pipeline, a regulation capacity in the target river basin, and rainfall data in the target river basin.
The content of the determining method embodiment shown in fig. 2 is applicable to the determining system embodiment, and the functions specifically implemented by the determining system embodiment are the same as those of the determining method embodiment shown in fig. 2, and the advantages achieved by the determining method embodiment shown in fig. 2 are the same as those achieved by the determining method embodiment shown in fig. 2.
Referring to fig. 7, an embodiment of the present invention further provides a computer apparatus, including:
at least one processor 701;
at least one memory 702 for storing at least one program;
the at least one program, when executed by the at least one processor 601, causes the at least one processor 601 to implement the determining method shown in fig. 2 or the displaying method shown in fig. 5.
The determining method shown in fig. 2 or the content in the display method embodiment shown in fig. 5 is applicable to the embodiment of the present computer device, and the functions specifically implemented by the embodiment of the present computer device are the same as those of the determining method shown in fig. 2 or the display method embodiment shown in fig. 5, and the beneficial effects achieved by the determining method shown in fig. 2 or the display method embodiment shown in fig. 5 are the same.
The embodiment of the present invention also provides a computer-readable storage medium in which a processor-executable program is stored, which when executed by a processor is for realizing the determination method shown in fig. 2 or the display method shown in fig. 5.
The determining method shown in fig. 2 or the content in the display method embodiment shown in fig. 5 is applicable to the storage medium embodiment, and the functions implemented by the storage medium embodiment are the same as those of the determining method shown in fig. 2 or the display method embodiment shown in fig. 5, and the advantages achieved are the same as those achieved by the determining method shown in fig. 2 or the display method embodiment shown in fig. 5.
Embodiments of the present invention also disclose a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The computer instructions may be read from a computer-readable storage medium by a processor of a computer device, and executed by the processor, to cause the computer device to perform the determination method shown in fig. 2 or the display method shown in fig. 5.
While the preferred embodiment of the present invention has been described in detail, the present invention is not limited to the embodiments described above, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present invention, and these equivalent modifications and substitutions are intended to be included in the scope of the present invention as defined in the appended claims.
Claims (7)
1. The method for determining the waterlogging amount of the watershed is characterized by comprising the following steps of:
dividing a plurality of land types from the target basin in response to the land type dividing instruction; the land type dividing instruction comprises a satellite base map obtaining instruction and a profile drawing instruction; the partitioning of the plurality of land types from the target basin in response to the land type partitioning instruction includes: responding to the satellite base map acquisition instruction, acquiring a satellite base map of the target river basin and displaying the satellite base map in an interactive application; drawing each of the land type contours one by one in a drawing area of the interactive application in proportion to the satellite base map with reference to the satellite base map in response to the contour drawing instruction,
obtaining a contour map of the target river basin;
determining an area of each of the land types in response to an area determination instruction;
determining a runoff coefficient of each land type in response to the runoff coefficient determining instruction; the runoff coefficient determining instruction comprises a runoff coefficient range display instruction and a runoff coefficient selecting instruction; the response to the runoff coefficient determination instruction,
determining a runoff coefficient for each of the land types, comprising: responding to the runoff coefficient range display instruction, and displaying the value range of each runoff coefficient of the land type in the interactive application; in response to the runoff coefficient selection instruction,
displaying the selection result of the runoff coefficients of the land types in the interactive application;
responding to a drainage capacity acquisition instruction, and acquiring the drainage capacity of the drainage pipeline in the target river basin;
responding to a regulation capacity acquisition instruction, and acquiring the regulation capacity in the target flow field;
determining a waterlogging amount of the target river basin in response to a waterlogging amount determination instruction, the waterlogging amount of the target river basin being determined according to rainfall data in the area, the runoff coefficient, the drainage capacity, the regulation capacity and the target river basin; wherein the rainfall data comprises rainfall in a heavy rain reproduction period; the determining the waterlogging amount of the target river basin in response to the waterlogging amount determining instruction comprises the following steps: determining the runoff speed of the target river basin according to the rainfall in the heavy rain reproduction period and the drainage capacity, wherein the runoff speed of the target river basin is the difference value between the rainfall in the heavy rain reproduction period and the drainage capacity of the drainage pipeline; determining the runoff amount generated in the target river basin according to the runoff speed, the area and the runoff coefficient; and determining the waterlogging amount of the target river basin according to the runoff amount and the regulation capacity, and outputting the waterlogging amount to the interactive application for display.
2. The method of determining the amount of water in a basin according to claim 1, wherein said determining the area of each of said land types in response to an area determining instruction comprises:
responding to an area determining instruction, and obtaining the drawing area of each land type in the drawing area according to the outline drawing of the target river basin;
and obtaining the actual area of each land type according to the proportion of the drawn area and the satellite base map, and displaying the actual area of each land type in the interactive application.
3. The watershed water logging determination method of claim 1, wherein the land type comprises at least one of a building roof, a road, a square, a bare land, a water surface, a park, or a green land.
4. A display method, comprising the steps of:
obtaining the waterlogging of a target river basin by the method of any one of claims 1-3;
and displaying the waterlogging amount of the target river basin.
5. A drainage basin waterlogging amount determination system, comprising:
a land type dividing unit for dividing a plurality of land types from the target basin in response to a land type dividing instruction;
the land type dividing instruction comprises a satellite base map obtaining instruction and a profile drawing instruction; the partitioning of the plurality of land types from the target basin in response to the land type partitioning instruction includes: responding to the satellite base map acquisition instruction, acquiring a satellite base map of the target river basin and displaying the satellite base map in an interactive application; responding to the outline drawing instruction, and drawing outlines of the land types one by one in a drawing area of the interactive application according to the proportion of the satellite base map by taking the satellite base map as a reference to obtain an outline map of the target river basin;
an area determining unit configured to determine an area of each of the land types in response to an area determining instruction;
a runoff coefficient determination unit configured to determine a runoff coefficient of each of the land types in response to a runoff coefficient determination instruction;
the runoff coefficient determining instruction comprises a runoff coefficient range display instruction and a runoff coefficient selecting instruction; the determining, in response to the runoff coefficient determining instruction, a runoff coefficient for each of the land types includes: responding to the runoff coefficient range display instruction, and displaying the value range of each runoff coefficient of the land type in the interactive application; responding to the runoff coefficient selection instruction, and displaying the selection result of each land type runoff coefficient in the interactive application;
a drainage capacity acquisition unit for acquiring the drainage capacity of the drainage pipeline in the target river basin in response to a drainage capacity acquisition instruction;
the energy regulation capacity acquisition unit is used for responding to an energy regulation capacity acquisition instruction and acquiring the energy regulation capacity in the target flow field;
a waterlogging amount determining unit configured to determine a waterlogging amount of the target river basin in response to a waterlogging amount determining instruction, the waterlogging amount of the target river basin being determined according to rainfall data in the area, the runoff coefficient, the drainage capacity, the regulation capacity and the target river basin; wherein the rainfall data comprises rainfall in a heavy rain reproduction period; the determining the waterlogging amount of the target river basin in response to the waterlogging amount determining instruction comprises the following steps: determining the runoff speed of the target river basin according to the rainfall in the heavy rain reproduction period and the drainage capacity, wherein the runoff speed of the target river basin is the difference value between the rainfall in the heavy rain reproduction period and the drainage capacity of the drainage pipeline; determining the runoff amount generated in the target river basin according to the runoff speed, the area and the runoff coefficient; and determining the waterlogging amount of the target river basin according to the runoff amount and the regulation capacity, and outputting the waterlogging amount to the interactive application for display.
6. A computer device, comprising:
at least one processor;
at least one memory for storing at least one program;
the at least one program, when executed by the at least one processor, causes the at least one processor to implement the method of any of claims 1-4.
7. A computer readable storage medium, in which a processor executable program is stored, characterized in that the processor executable program is for implementing the method according to any of claims 1-4 when being executed by the processor.
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