Sponge city design method, device and equipment based on three-dimensional model and medium

Abstract

The invention discloses a sponge city design method and device based on a three-dimensional model, equipment and a medium, and the method comprises the steps: generating a city three-dimensional model of a target city through obtaining the feature information of the target city; and obtaining a target sponge city design model matched with the city three-dimensional model from the model database, performing simulation testing on the target sponge city design model to obtain a test result containing the operation capability under different rainfall conditions, and outputting a design scheme of the target city according to the test result. Through the implementation of the application, on one hand, elements such as urban terrains, buildings, drainage facilities and the like can be comprehensively and intuitively displayed, so that the design is more accurate and comprehensive; and on the other hand, the method is not limited by experience of experts, the operation capability of the design scheme can be evaluated under different rainfall conditions through simulation testing, the reliability and practicability of the design are ensured, the design efficiency is improved, the cost is reduced, multi-party coordination and decision support are enhanced, and smart city construction is promoted.

Description

Technical Field

[0001] The present application relates to the field of urban design technology, and in particular to a sponge city design method, device, equipment and medium based on a three-dimensional model. Background Art

[0002] Urbanization is an inevitable trend when social productivity develops to a certain historical period. With the rapid development of urbanization in my country, high-speed urbanization has brought about a series of problems, such as an increase in the number of cities, a decrease in the number of rural areas, a decrease in the area of ​​natural drainage systems such as ponds, lakes and cultivated land, and an increase in the area of ​​hardened surface. These problems are also one of the important causes of urban waterlogging.

[0003] In recent years, my country has carried out numerous sponge city planning and design projects, achieving considerable success. Most existing sponge city planning and design methods require on-site inspections by experts, who then combine observations with planning documents and expert experience to plan and design sponge city projects. This requirement for on-site inspections reduces design efficiency, while the experts' limited experience and subjectivity also contribute to limited design reliability. Summary of the Invention

[0004] The main purpose of this application is to provide a sponge city design method, device, equipment and medium based on a three-dimensional model, so as to at least solve the technical problem of insufficient reliability of design solutions caused by the limitations of experts' own experience in related technologies.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A sponge city design method based on a three-dimensional model, the sponge city design method based on a three-dimensional model comprising:

[0007] Acquiring characteristic information of a target city, and generating a three-dimensional urban model of the target city based on the characteristic information; wherein the characteristic information includes first terrain data, first meteorological data, first hydrological data, first building information, and first drainage facility information of the target city;

[0008] Acquire a target sponge city design model that matches the three-dimensional city model from a model database;

[0009] Conducting simulation tests on the target sponge city design model to obtain test results including operational capabilities under different rainfall conditions;

[0010] A design plan for the target city is output according to the test results.

[0011] As a further improvement of the present application, after the step of obtaining characteristic information of the target city and generating a three-dimensional city model of the target city based on the characteristic information, the method further includes:

[0012] Obtaining the transformation location information selected by the user on the three-dimensional city model, and generating a transformation trajectory with a sequence according to the transformation location information;

[0013] Obtaining the transformation method selected by the user, and performing a transformation simulation process of the target city according to the transformation trajectory and the transformation method;

[0014] Detecting whether there is a transformation obstacle site during the transformation simulation process;

[0015] If the modified obstacle site does not exist, the total number of the modified obstacle sites is counted, and based on the total number, the step of obtaining the target sponge city design model that matches the urban three-dimensional model from the model database is selectively performed.

[0016] As a further improvement of the present application, before the step of obtaining characteristic information of the target city and generating a three-dimensional city model of the target city based on the characteristic information, the method further includes:

[0017] Acquire urban planning images of multiple sponge city transformation completion events and hydrological response data under rainfall conditions; the hydrological response data of the sponge city transformation completion events includes second terrain data, second meteorological data, second hydrological data, second building information, and second drainage facility information;

[0018] Taking the urban planning of each of the sponge city transformation completion events as input information, and the second terrain data, second meteorological data, second hydrological data, second building information and second drainage facility information of each of the sponge city transformation completion events as supervision information, a preset hydrological simulation model is used to train the sponge city design model to be trained, and the trained sponge city design model is obtained and stored in the model database.

[0019] As a further improvement of the present application, the step of obtaining a target sponge city design model matching the target city from the model database specifically includes:

[0020] Obtaining the planning requirements of the target city; wherein the planning requirements include the duration of sponge city construction, expected hydrological performance, cost budget, and environmental impact assessment;

[0021] The topographic data of the target city is combined with the duration of the sponge city construction, the expected hydrological performance, the cost budget and the environmental impact assessment to obtain a comprehensive planning score;

[0022] The corresponding target sponge city design model is confirmed from the model database according to the comprehensive planning score.

[0023] As a further improvement to this application, the step of combining the topographic data of the target city with the duration of the sponge city construction, the expected hydrological performance, the cost budget, and the environmental impact assessment to obtain a comprehensive planning score specifically includes:

[0024] After obtaining the terrain data of the target city, the duration of the sponge city construction, the expected hydrological efficiency, the cost budget and the environmental impact assessment, the planning comprehensive score is calculated using the calculation formula in the preset planning comprehensive scoring algorithm; wherein, the calculation formula is V = (k1×5×Pm1+k2×Pm2+k3×Pm3-k4×|5×Pm1-Pm2-Pm3|)M; V represents the planning comprehensive score, M represents the score value corresponding to the terrain data of the target city, k1 represents the weight corresponding to the duration of the sponge city construction, Pm1 represents the duration of the sponge city construction, k2 represents the weight corresponding to the expected hydrological efficiency, Pm2 represents the expected hydrological efficiency, k3 represents the weight corresponding to the cost budget, Pm3 represents the cost budget, k4 represents the weight corresponding to the environmental impact assessment, Pm4 represents the environmental impact assessment, k1, k2, k3 and k4 are constants greater than or equal to 0, and k1+k2+k3+k4=1.

[0025] As a further improvement of the present application, the step of conducting a simulation test on the target sponge city design model to obtain test results including the operating capability under different rainfall conditions specifically includes:

[0026] Establishing a simulation test environment, wherein the simulation test environment is used to simulate rainwater runoff, infiltration, storage, purification and discharge processes;

[0027] Inputting different rainfall conditions into the target sponge city design model, and driving the target sponge city design model to sequentially undergo rainwater runoff, infiltration, storage, purification, and discharge processes under different rainfall conditions in the simulation test environment;

[0028] The operating capabilities of the target sponge city design model under different rainfall conditions in the simulation test environment are monitored respectively, and test results are obtained; wherein the test results include the operating capabilities under different rainfall conditions.

[0029] As a further improvement of the present application, the step of outputting the design plan of the target city according to the test results specifically includes:

[0030] Comparing each of the operating capabilities in the obtained test results with a preset minimum operating threshold value;

[0031] When the comparison result shows that all the operating capabilities are greater than or equal to the minimum operating threshold, outputting a design solution that determines the target sponge city design model as being suitable for the target city;

[0032] When the comparison result is that the operating capacity is less than the minimum operating threshold, the method returns to the step of obtaining a target sponge city design model that matches the three-dimensional city model from the model database.

[0033] To achieve the above objectives, this application also provides the following technical solutions:

[0034] A sponge city design method and device based on a three-dimensional model, which is applied to the sponge city design method based on a three-dimensional model, and the sponge city design method and device based on a three-dimensional model include:

[0035] an acquisition module, configured to acquire characteristic information of a target city and generate a three-dimensional urban model of the target city based on the characteristic information; wherein the characteristic information includes first topographic data, first meteorological data, first hydrological data, first building information, and first drainage facility information of the target city;

[0036] A matching module is used to obtain a target sponge city design model that matches the three-dimensional urban model from a model database;

[0037] A simulation test module is used to perform simulation tests on the target sponge city design model to obtain test results including the operational capabilities under different rainfall conditions;

[0038] An output module is used to output the design plan of the target city according to the test results.

[0039] To achieve the above objectives, this application also provides the following technical solutions:

[0040] An electronic device includes a processor and a memory coupled to the processor, wherein the memory stores program instructions that can be executed by the processor; when the processor executes the program instructions stored in the memory, the sponge city design method based on the three-dimensional model as described above is implemented.

[0041] To achieve the above objectives, this application also provides the following technical solutions:

[0042] A storage medium stores program instructions, which, when executed by a processor, can implement the above-mentioned sponge city design method based on a three-dimensional model.

[0043] The present invention's three-dimensional model-based sponge city design method, apparatus, equipment, and medium obtain characteristic information of a target city and generate a three-dimensional urban model of the target city based on the characteristic information. The characteristic information includes first topographic data, first meteorological data, first hydrological data, first building information, and first drainage facility information for the target city. A target sponge city design model matching the three-dimensional urban model is obtained from a model database. The target sponge city design model is simulated and tested to obtain test results that include operational capabilities under different rainfall conditions. Based on the test results, a design plan for the target city is output. Traditional sponge city designs often rely on two-dimensional CAD (Computer Aided Design) drawings, which are difficult to accurately represent in cities with complex pipelines and varied terrain. On the one hand, the present invention uses a three-dimensional model to comprehensively and intuitively display elements such as urban terrain, buildings, and drainage facilities, making the design more precise. On the other hand, the design plan can be evaluated under different rainfall conditions through simulation testing, without being limited by expert experience, ensuring the reliability and practicality of the design. By improving design accuracy and reliability, optimizing resource allocation and facility layout, enhancing design efficiency and reducing costs, strengthening multi-party coordination and decision-making support, and promoting the construction of smart cities, problems such as insufficient reliability and long design cycles in traditional sponge city design have been solved, providing strong guarantees for the sustainable development of cities. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic diagram of the steps of an embodiment of the sponge city design method based on a three-dimensional model of this application;

[0045] Figure 2 This is a schematic diagram of the functional modules of an embodiment of a sponge city design device based on a three-dimensional model of this application;

[0046] Figure 3 This is a schematic structural diagram of an embodiment of the electronic device of the present application;

[0047] Figure 4 This is a structural diagram of an embodiment of the storage medium of the present application. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0049] The terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0050] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0051] Most existing technologies for sponge city planning, construction, and management rely on two-dimensional maps, simplifying the management object to a point on a plane. This makes it impossible to visualize the actual situation within the point, let alone the layout and design of the specific projects represented by the point. Currently, sponge city planning and construction management primarily utilizes traditional two-dimensional maps. This lack of intuitive display, information gaps, and difficulty coordinating the work of multiple parties hinder the advancement of sponge city development. The booming development of three-dimensional technology is a powerful tool for addressing a range of issues in sponge city planning, construction, and management. However, there are currently no reference examples for integrating 3D technology to construct a visual three-dimensional model (underground and aboveground) of sponge city planning and construction, allowing for intuitive and visual tracking and management of sponge control indicators. A sponge city refers to an urban development model that manages urban rainwater resources from a systemic perspective, leveraging low-impact development technologies and applying measures such as "infiltration, retention, storage, purification, utilization, and drainage" to foster a virtuous hydrological cycle.

[0052] In recent years, my country has carried out numerous sponge city planning and design projects, achieving considerable success. Most existing sponge city planning and design methods require on-site inspections by experts, who then combine observations with planning documents and expert experience to plan and design sponge city projects. This requirement for on-site inspections reduces design efficiency, while the experts' limited experience and subjectivity also contribute to limited design reliability.

[0053] In order to at least solve the technical problems in related technologies such as insufficient reliability of design solutions and long design cycles caused by the limitation of experts' own experience in sponge city design, this application provides a sponge city design method based on a three-dimensional model.

[0054] See also Figure 1 A sponge city design method based on a three-dimensional model in this embodiment includes the following steps:

[0055] Step S1: Acquire characteristic information of a target city, and generate a three-dimensional city model of the target city based on the characteristic information.

[0056] Specifically, the terminal can receive relevant information about a target city imported by the user through BIM (Building Information Modeling) software to obtain corresponding characteristic information; it can also identify the corresponding characteristic information based on input information entered by the user. When the BIM software receives the characteristic information, it can generate a three-dimensional urban model of the target city based on the first terrain data, first meteorological data, first hydrological data, first building information, and first drainage facility information of the target city in the characteristic information and according to preset modeling rules. In other words, the characteristic information includes at least a city's terrain data, meteorological data, hydrological data, building information, and drainage facility information.

[0057] Among them, BIM software refers to software that can construct BIM three-dimensional models, such as the Revit series of software, which can construct building information models (BIM) based on its preset model building function. In addition, the first terrain data refers to information describing the shape and height changes of the ground surface in the target city, usually including the elevation, slope, slope aspect, landform features, etc. of the ground. The first meteorological data refers to information describing the atmospheric state and environmental changes in the target city, including temperature, humidity, air pressure, wind speed, wind direction, precipitation, etc. The first hydrological data refers to information describing the hydrological cycle and water resource conditions in the target city, including water level, flow, sediment content, water quality parameters, etc. The first building information refers to information describing the structure, function, location, height and other attributes of buildings in the target city. The first drainage facility information refers to information describing the structure, layout, operation status and other attributes of the urban drainage system (including rainwater pipe network, sewage pipe network, pumping station, sewage treatment plant, etc.) of the target city.

[0058] It should be further explained that the first terrain data, the first meteorological data, the first hydrological data, the first building information and the first drainage facility information can directly reflect the terrain, meteorology, hydrology, buildings, drainage facilities and other aspects of the target city. The three-dimensional urban model of the target city generated by the first terrain data, the first meteorological data, the first hydrological data, the first building information and the first drainage facility information is a comprehensive three-dimensional model.

[0059] Step S2: Obtain a target sponge city design model that matches the city three-dimensional model from a model database.

[0060] Specifically, the model database may pre-store multiple trained sponge city design models of different types, each targeting a different type of target city. When obtaining a matching target sponge city design model, the first topographic data of the target city may be obtained, and the corresponding target sponge city design model may be matched from the model database based on the first topographic data. In other words, the appropriate target sponge city design model may be selected using topographic data as a single consideration.

[0061] In some optional implementations of this embodiment, the step of obtaining a target sponge city design model that matches the target city from the model database specifically includes: obtaining the planning requirements of the target city, combining the topographic data of the target city with the duration of sponge city construction, expected hydrological efficiency, cost budget, and environmental impact assessment to obtain a comprehensive planning score, and identifying the corresponding target sponge city design model from the model database based on the comprehensive planning score. Specifically, the planning requirements include the duration of sponge city construction, expected hydrological efficiency, cost budget, and environmental impact assessment. That is, the five data points of topographic data, duration of sponge city construction, expected hydrological efficiency, cost budget, and environmental impact assessment are all taken into consideration to comprehensively select the target sponge city design model with the highest degree of suitability.

[0062] Step S3: Perform simulation tests on the target sponge city design model to obtain test results including the operating capabilities under different rainfall conditions.

[0063] Specifically, by establishing a simulation test environment for simulating rainwater runoff, infiltration, storage, purification and discharge processes, different rainfall conditions can be input into the target sponge city design model, and the target sponge city design model can be driven to undergo rainwater runoff, infiltration, storage, purification and discharge processes in the simulation test environment under different rainfall conditions in sequence, and the operating capabilities of the target sponge city design model under different rainfall conditions in the simulation test environment can be monitored respectively, and test results containing the operating capabilities under different rainfall conditions can be obtained.

[0064] It should be noted that different rainfall conditions include a series of rainfall scenarios of different intensities, including light rain, moderate rain, heavy rain, rainstorms, etc., and rainfall scenarios of different durations and rain types can also be designed. The operating capacity can be reflected by the total runoff control rate, runoff peak reduction rate, waterlogging area and water depth. Generally, when the operating capacity is 90%, it indicates that the urban three-dimensional model has a better comprehensive ability to adapt to environmental changes and respond to natural disasters caused by rain under different rainfall conditions in the simulation test environment. When the operating capacity is 40%, it indicates that the urban three-dimensional model has a poor comprehensive ability to adapt to environmental changes and respond to natural disasters caused by rain under different rainfall conditions in the simulation test environment. For example, the preset calculation formula can be used Q is the operating capacity, y is a binary output variable, 1 indicates the strongest operating capacity, 0 indicates the worst operating capacity, ωi is the weight corresponding to Yi, and the total runoff control rate, runoff peak reduction rate, waterlogged area, and waterlogging depth correspond to Y1 to Y4, respectively.

[0065] Step S4: output the design plan for the target city based on the test results.

[0066] Specifically, after the test results are obtained, the operating capacity in the obtained test results is compared with the preset minimum operating threshold. When the comparison result is that the operating capacity is greater than or equal to the minimum operating threshold, it indicates that the target sponge city design model has a better comprehensive ability to adapt to environmental changes and respond to natural disasters caused by rain under different rainfall conditions in the simulation test environment, that is, the target city and the target sponge city design model are better compatible, then the output determines the target sponge city design model as a design scheme that is compatible with the target city; and when the comparison result is that the operating capacity is less than the said minimum operating threshold, it indicates that the city three-dimensional model has a poor comprehensive ability to adapt to environmental changes and respond to natural disasters caused by rain under different rainfall conditions in the simulation test environment, then the step of obtaining the target sponge city design model that matches the city three-dimensional model from the model database is returned.

[0067] The minimum operating threshold is related to the target sponge city design model's annual runoff control rate, pollutant reduction rate, performance of low-impact development facilities, carrying capacity of the pipe network and drainage system, rainfall characteristics, soil type and hydrogeological conditions, investment and maintenance costs, and long-term operational effectiveness and sustainability. Specifically, the annual runoff control rate is the core goal of sponge city design, aiming to alleviate urban waterlogging and reduce the impact of rainwater runoff on downstream water systems. The pollutant reduction rate means that sponge cities also need to focus on reducing pollutants in runoff. The performance of low-impact development facilities refers to their ability to absorb, store, infiltrate, and purify water. The carrying capacity of the pipe network and drainage system means that the sponge city model must consider the carrying capacity of the existing pipe network and drainage system. Rainfall characteristics refer to rainfall characteristics in different regions (such as rainfall volume, rainfall intensity, and rainfall duration). Soil type and hydrogeological conditions refer to the impact of soil type and hydrogeological conditions on rainwater infiltration and storage capacity. Furthermore, investment and maintenance costs: The preset minimum operating threshold also needs to consider economic factors. Excessively high thresholds may increase investment and maintenance costs, while excessively low thresholds may fail to meet design objectives. Therefore, a balance must be struck between economic efficiency and design objectives. Long-term operational effectiveness and sustainability: The construction of sponge cities requires consideration of both long-term operational effectiveness and sustainability. The preset minimum operational threshold should ensure the system's long-term stable operation and good sustainability. In summary, the preset minimum operational threshold in the sponge city model is related to multiple factors, including design objectives and planning requirements, system performance and facility capabilities, environmental conditions and meteorological factors, and economic efficiency and sustainability. In practical applications, this requires comprehensive consideration and determination based on specific circumstances.

[0068] In an actual application scenario, when it is necessary to carry out sponge city design for the target city "Shenzhen", characteristic information such as the topography, meteorology, hydrology, architecture, and drainage facilities of the target city is collected in advance, and a corresponding three-dimensional city model is generated on the terminal based on the characteristic information. In addition, a target sponge city design model matching the three-dimensional city model is obtained from a preset model database, such as a coastal sponge city design model. A simulation test environment is established through the coastal sponge city design model and a simulation test is carried out to obtain test results including the operating capabilities under different rainfall conditions, and a design plan for the target city is output based on the test results.

[0069] Through the implementation of this embodiment, on the one hand, the three-dimensional model can comprehensively and intuitively display elements such as urban terrain, buildings, and drainage facilities, making the design more precise. On the other hand, without being limited by the experts' own experience, simulation testing can be used to evaluate the operational capabilities of the design under different rainfall conditions, ensuring the reliability and practicality of the design. By improving design accuracy and reliability, optimizing resource allocation and facility layout, improving design efficiency and reducing costs, enhancing multi-party coordination and decision-making support, and promoting the construction of smart cities, it solves the problems of insufficient reliability and long design cycles in traditional sponge city design, providing a strong guarantee for sustainable urban development.

[0070] In some optional implementations of this embodiment, after the steps of obtaining characteristic information of the target city and generating a three-dimensional urban model of the target city based on the characteristic information, it also includes: obtaining the transformation location information selected by the user on the three-dimensional urban model, generating a transformation trajectory with a sequence according to the transformation location information, obtaining the transformation method selected by the user, and performing a transformation simulation process for the target city according to the transformation trajectory and the transformation method, detecting whether there are transformation obstacle sites during the transformation simulation process, and if there are no transformation obstacle sites, counting the total number of transformation obstacle sites, and selectively executing the step of obtaining a target sponge city design model that matches the three-dimensional urban model from the model database based on the total number.

[0071] Specifically, the transformation location information input by the user can be a number of detection points confirmed by the user on the three-dimensional model of the city. For example, the user rotates the three-dimensional model of the city to mark a number of detection points at different positions on the three-dimensional model of the city. These identified detection points are the transformation location information input by the user. For example, the user controls the mouse to manipulate the pointer and clicks on the smooth end surface of the three-dimensional model of the city to mark the detection point. If the input completion signal input by the user is received, a transformation trajectory with a paving order is generated according to the detection location information. Furthermore, through the precise simulation of the three-dimensional model of the city and the transformation simulation process of the target city, the transformation obstacle sites are discovered in a timely manner. When there are too many transformation obstacle sites, it indicates that the target city is likely to have transformation obstacles during the actual sponge city construction process, thereby greatly increasing the difficulty of transformation and construction costs, and should be avoided; otherwise, the target sponge city design model that matches the three-dimensional model of the city is obtained from the model database.

[0072] In an optional implementation of this embodiment, before the step of obtaining characteristic information of the target city and generating a three-dimensional urban model of the target city based on the characteristic information, it also includes: obtaining urban planning images of multiple sponge city transformation completion events and hydrological response data under rainfall conditions; the hydrological response data of the sponge city transformation completion events include second terrain data, second meteorological data, second hydrological data, second building information and second drainage facility information; using the urban planning of each sponge city transformation completion event as input information, and using the second terrain data, second meteorological data, second hydrological data, second building information and second drainage facility information of each sponge city transformation completion event as supervision information, a preset hydrological simulation model is used to train the sponge city design model to be trained, and the trained sponge city design model is obtained and stored in the model database.

[0073] Specifically, before generating the three-dimensional urban model of the target city, the corresponding hydrological response data, namely the second terrain data, the second meteorological data, the second hydrological data, the second building information and the second drainage facility information, can be obtained through historical and successful sponge city transformation events. The sponge city design model to be trained is trained using the terrain data, meteorological data, hydrological data, building information and drainage facility information and the preset hydrological simulation model, so that multiple sponge city design models corresponding to multiple sponge city transformation completion events can be trained in sequence for subsequent direct use.

[0074] In an optional implementation of this embodiment, the test result also includes an operating capacity difference value; that is, after establishing a simulation test environment for simulating rainwater runoff, infiltration, storage, purification and discharge processes, different rainfall conditions are input into the target sponge city design model, and the target sponge city design model and the urban three-dimensional model in the simulation test environment are driven to undergo rainwater runoff, infiltration, storage, purification and discharge processes in sequence under different rainfall conditions, and the operating capacity of the target sponge city design model and the urban three-dimensional model under different rainfall conditions in the simulation test environment are monitored respectively, and the operating capacity of the target sponge city design model is subtracted from the operating capacity of the urban three-dimensional model to obtain the operating capacity difference value, which is used as the test result.

[0075] In an optional implementation of this embodiment, the step of combining the terrain data of the target city with the duration of sponge city construction, the expected hydrological efficiency, the cost budget and the environmental impact assessment to obtain a comprehensive planning score specifically includes: after obtaining the terrain data of the target city, the duration of sponge city construction, the expected hydrological efficiency, the cost budget and the environmental impact assessment, the planning comprehensive score is calculated using the calculation formula in the preset planning comprehensive scoring algorithm; wherein the calculation formula is V=(k1×5×Pm1+k2×Pm2+k3×Pm3-k4×|5×Pm1-P m2-Pm3|)M; V represents the comprehensive planning score, M represents the score corresponding to the target city's terrain data, k1 represents the weight corresponding to the duration of sponge city construction, Pm1 represents the duration of sponge city construction, k2 represents the weight corresponding to the expected hydrological efficiency, Pm2 represents the expected hydrological efficiency, k3 represents the weight corresponding to the cost budget, Pm3 represents the cost budget, k4 represents the weight corresponding to the environmental impact assessment, Pm4 represents the environmental impact assessment, k1, k2, k3, and k4 are constants greater than or equal to 0, and k1+k2+k3+k4=1. Specifically, through the calculation formula in the above-mentioned preset comprehensive planning score algorithm, the accuracy of the terrain data, the rationality of the construction duration, the achievement of the expected hydrological efficiency, the control effect of the cost budget, and the conclusion of the environmental impact assessment are used as scoring indicators to scientifically and accurately calculate the comprehensive planning score.

[0076] In summary, through the implementation of this embodiment, on the one hand, the three-dimensional model can comprehensively and intuitively display urban terrain, buildings, drainage facilities, and other elements, making the design more precise. On the other hand, without being limited by the experts' own experience, simulation testing can be used to evaluate the operational capabilities of the design under different rainfall conditions, ensuring the reliability and practicality of the design. By improving design accuracy and reliability, optimizing resource allocation and facility layout, improving design efficiency and reducing costs, enhancing multi-party coordination and decision-making support, and promoting the construction of smart cities, it solves the problems of insufficient reliability and long design cycles in traditional sponge city design, providing a strong guarantee for sustainable urban development.

[0077] See also Figure 2 This embodiment provides a sponge city design device based on a three-dimensional model, which can execute the sponge city design method based on a three-dimensional model of each of the above embodiments. The sponge city design device based on a three-dimensional model includes:

[0078] An acquisition module 21 is configured to acquire characteristic information of a target city and generate a three-dimensional urban model of the target city based on the characteristic information; wherein the characteristic information includes first terrain data, first meteorological data, first hydrological data, first building information, and first drainage facility information of the target city;

[0079] A matching module 22 is used to obtain a target sponge city design model that matches the urban three-dimensional model from a model database;

[0080] A simulation test module 23 is used to perform simulation tests on the target sponge city design model to obtain test results including the operational capabilities under different rainfall conditions;

[0081] The output module 24 is used to output the design plan of the target city according to the test results.

[0082] The present invention's 3D-model-based sponge city design device, on the one hand, enables a comprehensive and intuitive display of urban terrain, buildings, drainage facilities, and other elements through the 3D model, making the design more precise. On the other hand, without being limited by the experts' own experience, simulation tests can be used to evaluate the operational capabilities of the design under different rainfall conditions, ensuring the reliability and practicality of the design. By improving design accuracy and reliability, optimizing resource allocation and facility layout, enhancing design efficiency and reducing costs, strengthening multi-party coordination and decision-making support, and promoting the construction of smart cities, the invention solves the problems of insufficient reliability and long design cycles in traditional sponge city design, providing a strong guarantee for the sustainable development of cities.

[0083] like Figure 3 As shown, this embodiment provides an embodiment of an electronic device. In this embodiment, the electronic device 3 includes a processor 31 and a memory 32 coupled to the processor 11.

[0084] The memory 32 stores program instructions for implementing the sponge city design method based on a three-dimensional model in any of the above embodiments.

[0085] The processor 31 is used to execute program instructions stored in the memory 32 to perform a sponge city design method based on a three-dimensional model.

[0086] The processor 31 may also be referred to as a CPU (Central Processing Unit). The processor 31 may be an integrated circuit chip having signal processing capabilities. The processor 31 may also be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The general-purpose processor may be a microprocessor or any conventional processor.

[0087] Furthermore, Figure 4This is a schematic diagram of the structure of a storage medium in an embodiment of the present application. The storage medium 4 in the embodiment of the present application stores program instructions 41 that can implement all the above methods, wherein the program instructions 41 can be stored in the above storage medium in the form of a software product, including a number of instructions for causing a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, or terminal devices such as a computer, server, mobile phone, and tablet.

[0088] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0089] In addition, the functional units in the various embodiments of the present application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units. The above is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

[0090] The above detailed description of the specific embodiments of the invention is intended only as an example, and the present application is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications or substitutions of the invention are also within the scope of the present application. Therefore, equivalent changes, modifications, and improvements made without departing from the spirit and scope of the present application should be included within the scope of the present application.

Claims

1. A sponge city design method based on a three-dimensional model, characterized in that: The sponge city design method based on the three-dimensional model includes: Acquire characteristic information of a target city, and generate a three-dimensional urban model of the target city based on the characteristic information; wherein the characteristic information includes first terrain data, first meteorological data, first hydrological data, first building information, and first drainage facility information of the target city; Acquire a target sponge city design model matching the three-dimensional city model from a model database; Conducting simulation tests on the target sponge city design model to obtain test results including operating capabilities under different rainfall conditions; A design plan for the target city is output according to the test results.

2. A sponge city design method based on a three-dimensional model according to claim 1, characterized in that: After the step of acquiring characteristic information of the target city and generating a three-dimensional city model of the target city based on the characteristic information, the method further includes: Acquiring the transformation location information selected by the user on the three-dimensional city model, and generating a transformation trajectory with a sequence according to the transformation location information; Obtaining the transformation method selected by the user, and performing a transformation simulation process of the target city according to the transformation trajectory and the transformation method; Detecting whether there is a transformation obstacle site during the transformation simulation process; If the modified obstacle site does not exist, the total number of the modified obstacle sites is counted, and based on the total number, the step of obtaining the target sponge city design model matching the urban three-dimensional model from the model database is selectively performed.

3. A sponge city design method based on a three-dimensional model according to claim 1, characterized in that: Before the step of acquiring characteristic information of the target city and generating a three-dimensional city model of the target city based on the characteristic information, the method further includes: Acquire urban planning images of multiple sponge city transformation completion events and hydrological response data under rainfall conditions; the hydrological response data of the sponge city transformation completion event includes second terrain data, second meteorological data, second hydrological data, second building information and second drainage facility information; Taking the urban planning of each of the sponge city transformation completion events as input information, the second terrain data, second meteorological data, second hydrological data, second building information and second drainage facility information of each of the sponge city transformation completion events as supervision information, a preset hydrological simulation model is used to train the sponge city design model to be trained, and the trained sponge city design model is obtained and stored in the model database.

4. The sponge city design method based on a three-dimensional model according to claim 1 is characterized in that: The step of obtaining a target sponge city design model matching the target city from a model database specifically includes: Obtaining the planning requirements of the target city; wherein the planning requirements include the duration of sponge city construction, expected hydrological performance, cost budget and environmental impact assessment; The topographic data of the target city is combined with the duration of the sponge city construction, the expected hydrological performance, cost budget and environmental impact assessment to obtain a comprehensive planning score; The corresponding target sponge city design model is confirmed from the model database according to the comprehensive planning score.

5. A sponge city design method based on a three-dimensional model according to claim 4, characterized in that: The step of combining the topographic data of the target city with the duration of the sponge city construction, the expected hydrological performance, the cost budget and the environmental impact assessment to obtain a comprehensive planning score specifically includes: After obtaining the topographic data of the target city, the duration of the sponge city construction, the expected hydrological efficiency, cost budget and environmental impact assessment, the planning comprehensive score is calculated using the calculation formula in the preset planning comprehensive scoring algorithm; wherein the calculation formula is V=(k1×5×Pm1+k2×Pm2+k3×Pm3-k4×|5×Pm1-Pm2-Pm3|)M; V represents the planning comprehensive score, M represents the score value corresponding to the topographic data of the target city, k1 Indicates the weight corresponding to the duration of sponge city construction, P m 1 Indicates the duration of sponge city construction, k2 Indicates the weight corresponding to the expected hydrological performance, P m 2 It indicates the expected hydrological performance. k3 represents the weight corresponding to the cost budget, Pm3 represents the cost budget, k 4 represents the weight corresponding to the environmental impact assessment, Pm4 represents the environmental impact assessment, k1, k2, k3 and k4 are constants greater than or equal to 0, and k1+k2+k3+k4=1.

6. The sponge city design method based on a three-dimensional model according to claim 1 is characterized in that: The step of performing simulation test on the target sponge city design model to obtain test results including the operating capability under different rainfall conditions specifically includes: Establishing a simulation test environment, wherein the simulation test environment is used to simulate rainwater runoff, infiltration, storage, purification and discharge processes; Inputting different rainfall conditions into the target sponge city design model, and driving the target sponge city design model to sequentially undergo rainwater runoff, infiltration, storage, purification and discharge processes under different rainfall conditions in the simulation test environment; The operating capabilities of the target sponge city design model under different rainfall conditions in the simulation test environment are monitored respectively, and test results are obtained; wherein the test results include the operating capabilities under different rainfall conditions.

7. The sponge city design method based on a three-dimensional model according to claim 1 is characterized in that: The step of outputting the design plan of the target city according to the test results specifically includes: Comparing the operating capabilities in the obtained test results with preset minimum operating thresholds respectively; When the comparison result shows that the operating capacities are all greater than or equal to the minimum operating threshold, outputting a design scheme that determines the target sponge city design model as being compatible with the target city; When the comparison result is that the operating capacity is less than the minimum operating threshold, the step of obtaining the target sponge city design model matching the urban three-dimensional model from the model database is returned to.

8. A three-dimensional model-based sponge city design method device, which is applied to the three-dimensional model-based sponge city design method according to any one of claims 1 to 7, characterized in that: The sponge city design method device based on the three-dimensional model includes: An acquisition module, used to acquire characteristic information of a target city, and generate a three-dimensional urban model of the target city based on the characteristic information; wherein the characteristic information includes first terrain data, first meteorological data, first hydrological data, first building information, and first drainage facility information of the target city; A matching module, used for acquiring a target sponge city design model matching the urban three-dimensional model from a model database; A simulation test module, used to perform simulation tests on the target sponge city design model to obtain test results including the operating capabilities under different rainfall conditions; An output module is used to output the design plan of the target city according to the test results.

9. An electronic device, characterized in that: It includes a processor and a memory coupled to the processor, wherein the memory stores program instructions that can be executed by the processor; when the processor executes the program instructions stored in the memory, the sponge city design method based on the three-dimensional model as described in any one of claims 1 to 7 is implemented.

10. A storage medium, characterized in that: The storage medium stores program instructions, which, when executed by a processor, can implement the sponge city design method based on a three-dimensional model as described in any one of claims 1 to 7.

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