Method and device for constructing digital twinborn model of power distribution network

Abstract

The invention provides a construction method and device for a digital twin model of a power distribution network. The construction method comprises the following steps: constructing a three-dimensional live-action model of a power distribution network ground environment in an unreal engine by using an oblique photography technology; constructing a three-dimensional BIM model of the power distribution network underground cable and a channel of the power distribution network underground cable in the three-dimensional live-action model by using a parametric modeling technology; and performing simulation processing on the three-dimensional BIM model by using an unreal engine to generate the digital twin model of the power distribution network. According to the invention, the problem that the three-dimensional space relationship between the cable and the surrounding environment cannot be visually displayed in the prior art is solved.

Description

Technical Field

[0001] The present application relates to the technical field of distribution network modeling, and specifically, to a method for constructing a digital twin model of a distribution network, a device for constructing a digital twin model of a distribution network, a computer-readable storage medium, and an electronic device. Background Art

[0002] With the rapid development of urban power grids, distribution cables are a key component of power transmission, and their operation and maintenance efficiency and safety are directly related to the stable operation of the power grid. The complexity and concealment of cable lines, especially the accurate grasp of their path direction, play a decisive role in quickly locating faults, preventing external damage, and improving operation and maintenance efficiency. The cable path direction is an important basic data for the operation and maintenance of cable lines, and is extremely important for preventing external damage and locating faults.

[0003] However, the current recording and management of cable paths mainly rely on two-dimensional plane models, which have many limitations in actual operation and maintenance. Specifically, the two-dimensional plane model cannot fully display the cable laying method (such as cable trench, pipe and direct burial, etc.) and the three-dimensional relationship with the surrounding environment, which makes it difficult to accurately match it during on-site application. In addition, due to the deviation from the actual path, the accuracy of fault location and the effectiveness of operation and maintenance decisions are reduced.

[0004] The industry has tried to apply modern surveying and mapping technology to cable path management, but most of them remain at the basic geographic information system (GIS) application level, mainly relying on manual entry and management of cable path information and displaying it on the GIS platform. For example, some existing cable management systems have achieved preliminary information management of cable lines by integrating map data with simple cable path line drawings. Although this has improved the centralization of data management to a certain extent, it still has not been able to break through the limitations of two-dimensional expression, and cannot intuitively display the three-dimensional spatial relationship between the cable and the surrounding environment, and has limited improvement in the adaptability to complex environments and problem diagnosis capabilities in actual operation and maintenance. Summary of the invention

[0005] The main purpose of this application is to provide a method for constructing a digital twin model of a distribution network, a device for constructing a digital twin model of a distribution network, a computer-readable storage medium and an electronic setting, so as to at least solve the problem in the prior art that the three-dimensional spatial relationship between the cable and the surrounding environment cannot be intuitively displayed.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a method for constructing a digital twin model of a distribution network is provided, and the construction method includes: using oblique photography technology to construct a three-dimensional real-life model of the ground environment of the distribution network in the Unreal Engine; using parametric modeling technology to construct a three-dimensional BIM model of the underground cables of the distribution network and the channels of the underground cables of the distribution network in the three-dimensional real-life model; using the Unreal Engine to simulate the three-dimensional BIM model to generate a digital twin model of the distribution network.

[0007] Optionally, constructing a three-dimensional real-scene model of the ground environment of the distribution network in the Unreal Engine includes: acquiring an oblique photographic image of the ground environment of the distribution network; generating an initial three-dimensional ground model of the ground environment of the distribution network based on the oblique photographic image and image processing software; generating a three-dimensional real-scene model based on the initial three-dimensional ground model and the Unreal Engine.

[0008] Optionally, the construction method further includes: obtaining a project template in the Unreal Engine, the project template including a model automatic generation module and a BIM model library of underground cables and channels of the distribution network.

[0009] Optionally, a three-dimensional BIM model of the underground cables and channels of the distribution network is constructed in the three-dimensional real-scene model, including: obtaining first ledger information of the underground cables and channels of the distribution network; generating a three-dimensional BIM model according to the automatic generation module, the first ledger information and the target drawings corresponding to the underground cables and channels of the distribution network in the BIM model library.

[0010] Optionally, the project template also includes an automatic rendering module to generate a digital twin model of the distribution network, including: running the automatic rendering module to enable the automatic rendering module to render the three-dimensional BIM model.

[0011] Optionally, the construction method also includes: obtaining multi-source data of the distribution network, the multi-source data including second ledger information of underground cables and channels of the distribution network and monitoring data of underground cables and channels of the distribution network; generating an operation and maintenance data display system based on the multi-source data and the digital twin model of the distribution network.

[0012] Optionally, the construction method also includes: standardizing the data in the distribution network digital twin model; and using the Web server to call the data of the distribution network digital twin model.

[0013] According to another aspect of the present application, a device for constructing a digital twin model of a distribution network is provided, the device comprising: a first construction module, for constructing a three-dimensional real-scene model of the ground environment of the distribution network in an Unreal Engine using oblique photography technology; a second construction module, for constructing a three-dimensional BIM model of underground cables of the distribution network and channels of the underground cables of the distribution network in the three-dimensional real-scene model using parametric modeling technology; and a first generation module, for simulating the three-dimensional BIM model using the Unreal Engine to generate a digital twin model of the distribution network.

[0014] According to another aspect of the present application, a computer-readable storage medium is provided, which includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute any one of the above-mentioned methods for constructing a digital twin model of a distribution network.

[0015] According to another aspect of the present application, an electronic device is provided, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for constructing a digital twin model of a distribution network for executing any of the above.

[0016] Applying the technical solution of the present application, firstly, the oblique photography technology is used to construct a three-dimensional real-life model of the ground environment of the distribution network in the Unreal Engine. On this basis, the parametric modeling technology is used to directly construct a three-dimensional BIM model of the underground cable of the distribution network and the channel of the underground cable of the distribution network in the three-dimensional real-life model that has been constructed. Then, the above-mentioned Unreal Engine is also used to simulate the three-dimensional BIM model in the three-dimensional real-life model, thereby generating a digital twin model of the distribution network. It can be seen that the digital twin model of the distribution network in the present application integrates oblique photography technology, parametric modeling technology and Unreal Engine, so that the generated digital twin model of the distribution network simultaneously displays the three-dimensional ground environment of the distribution network and the three-dimensional underground cable of the distribution network and the channel of the underground cable of the distribution network, thereby solving the problem of the inability to intuitively display the three-dimensional spatial relationship between the cable and the surrounding environment in the prior art. In addition, the digital twin model of the distribution network in the present application is generated in the Unreal Engine. Since the virtualization engine can perform high-simulation processing on the model by simulating the real environment, the ease of use of the high-performance simulation scene browsing of the digital twin model of the distribution network is improved. In addition, since the three-dimensional BIM model in this application is directly constructed in the three-dimensional real-scene model, the distribution network ground environment in the distribution network digital twin model can seamlessly connect with the distribution network underground cables and the channels of the distribution network underground cables, greatly improving the overall realism and usability of the distribution network digital twin model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 A hardware structure block diagram of a mobile terminal for executing a method for constructing a digital twin model of a distribution network provided in an embodiment of the present application is shown;

[0019] Figure 2 A schematic diagram of a process for constructing a digital twin model of a distribution network provided in accordance with an embodiment of the present application is shown;

[0020] Figure 3 A structural block diagram of a device for constructing a digital twin model of a distribution network provided according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] As introduced in the background technology, the recording and management of the cable path direction of the distribution network cable in the prior art mainly rely on a two-dimensional plane model. However, the two-dimensional plane model cannot fully display the laying method of the cable (such as cable trench, pipe and direct burial, etc.) and the three-dimensional relationship with the surrounding environment. In order to solve the problem that the three-dimensional spatial relationship between the cable and the surrounding environment cannot be intuitively displayed in the prior art, the embodiments of the present application provide a method for constructing a digital twin model of a distribution network, a construction device for a digital twin model of a distribution network, a computer-readable storage medium and an electronic device.

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 1 is a hardware structure block diagram of a mobile terminal of a method for constructing a digital twin model of a distribution network according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0027] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method for constructing the digital twin model of the distribution network in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above method is implemented. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the mobile terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The above-mentioned specific network examples may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0028] In this embodiment, a method for constructing a digital twin model of a distribution network running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0029] Figure 2 : is a flow chart of a method for constructing a digital twin model of a distribution network according to an embodiment of the present application. Figure 2 As shown, the method comprises the following steps:

[0030] Step S201, using oblique photography technology to construct a three-dimensional real scene model of the ground environment of the distribution network in the Unreal Engine;

[0031] Specifically, oblique photography is an advanced photogrammetry technology that uses multiple (usually 4-5) high-resolution cameras at different angles on the same flying platform to photograph the ground, thereby obtaining more complete and detailed information about ground objects. It should be noted that, unlike traditional vertical photography, oblique photography can simultaneously capture the vertical perspective of the ground object and images from multiple oblique perspectives, which helps to build a three-dimensional model with rich texture and stereoscopic sense, and can more realistically reflect the actual shape and spatial position relationship of the ground object.

[0032] Specifically, Unreal Engine is a complete game development platform for next-generation game consoles and DirectX 9 personal computers, providing a large number of core technologies, data generation tools and basic support required by game developers. The main design purpose of Unreal Engine is to improve usability, and its usability mainly focuses on data and program writing, so that artists can complete as many game data resources as possible with only a small amount of assistance from professionals. Moreover, this process is carried out in a visual state, which not only improves usability, but also increases interest and is very convenient to operate.

[0033] Based on this, the present application combines the above-mentioned oblique photography technology and Unreal Engine to improve the realism of the three-dimensional real-scene model of the ground environment of the distribution network.

[0034] Optionally, the steps of constructing a three-dimensional real-scene model of the ground environment of the distribution network in the Unreal Engine using oblique photography technology include: obtaining an oblique photography image of the ground environment of the distribution network; generating an initial three-dimensional ground model of the ground environment of the distribution network based on the oblique photography image and image processing software; and generating a three-dimensional real-scene model based on the initial three-dimensional ground model and the Unreal Engine.

[0035] It is understandable that in order to obtain the oblique photographic image of the ground environment of the distribution network, a multi-angle camera can be used to shoot the ground environment of the distribution network using a drone, thereby obtaining multiple images of the ground environment of the distribution network at multiple different angles. The oblique photographic image of the ground environment of the distribution network includes the above multiple images. It is worth mentioning that when the ground environment of the distribution network is photographed at multiple different angles, the multiple different angles are used to shoot the same area of ​​the ground environment of the distribution network.

[0036] Subsequently, in order to construct a three-dimensional real scene model of the ground environment of the distribution network based on the multiple images captured, the multiple images can be input into the image processing software to run the image processing software to process the images and output an initial three-dimensional ground model containing rich textures and accurate geographic coordinates. For example, the above-mentioned image processing software is ContextCapture.

[0037] Next, the initial three-dimensional ground model can be imported into the Unreal Engine, so that the Unreal Engine can perform high-simulation processing on the initial three-dimensional ground model to simulate the real distribution network ground environment, thereby generating a three-dimensional real-scene model of the distribution network ground environment.

[0038] Optionally, this application not only generates a high-precision three-dimensional model of the ground environment of the distribution network through oblique photography technology, but also can output data results such as DSM, DOM, and DLG, embedding the real terrain characteristics, detailed textures and precise geographic information of the ground environment of the distribution network into the model, so that it can accurately reflect the three-dimensional spatial structure and geographic coordinate information of the ground environment of the distribution network. These data results provide an intuitive and accurate geospatial view for cable operation and maintenance, which helps operation and maintenance personnel to quickly locate cable facilities and understand their relationship with the surrounding environment, thereby improving the efficiency of troubleshooting and maintenance work.

[0039] Step S202, using parametric modeling technology to construct a three-dimensional BIM model of the underground cables of the distribution network and the channels of the underground cables of the distribution network in the three-dimensional real scene model;

[0040] Specifically, the parametric modeling technology in this application is to use BIM technology in a three-dimensional real-life model, based on the known account information of underground cables in the distribution network and the channels of underground cables in the distribution network (including cable models, sizes, laying methods and channel sizes, etc.), to define the geometric characteristics, sizes and relationships of underground cables in the distribution network and their channels through a parametric method, so that the constructed three-dimensional BIM model can be updated according to changes in parameter values, thereby achieving rapid iteration and comparison of multiple solutions. This technology greatly improves the modeling efficiency and makes the three-dimensional modeling of cable operation and maintenance scenarios more flexible and efficient.

[0041] Specifically, the Unreal Engine in the present application may have a pre-stored project template, which includes a model automatic generation module and a BIM model library of underground cables of the distribution network and the channels of the underground cables of the distribution network. Based on this, in order to construct a three-dimensional BIM model of the underground cables of the distribution network and the channels of the underground cables of the distribution network, the above-mentioned project template in the Unreal Engine can be first obtained to use the above-mentioned automatic generation module and BIM model library in the process of constructing the three-dimensional BIM model of the underground cables and channels of the distribution network.

[0042] Optionally, using parametric modeling technology, the steps of constructing a three-dimensional BIM model of the underground cables and channels of the distribution network in the three-dimensional real-scene model include: obtaining first ledger information of the underground cables and channels of the distribution network; generating a three-dimensional BIM model according to the automatic generation module, the first ledger information and the target drawings corresponding to the underground cables and channels of the distribution network in the BIM model library.

[0043] In this step, the first ledger information may include the latitude and longitude coordinates of the cable well corresponding to the underground cables and channels of the distribution network, the cable burial depth, cable length, cable size, and cable laying method, etc. In order to generate a three-dimensional BIM model, the first ledger information can be input into the automatic generation module of the Unreal Engine, so that the automatic generation module can automatically generate a corresponding three-dimensional BIM model based on the input first ledger information and the target pattern corresponding to the underground cables and channels of the distribution network in the BIM model library. It can be seen that through this step of the present application, the operation and maintenance personnel do not need to create a model from scratch, but input specific parameters, and the model automatic generation module can quickly generate a three-dimensional model that meets the requirements.

[0044] In addition, during the modeling process, the structure of the 3D BIM model can be controlled through coding and constraints to ensure the correctness and consistency of the 3D BIM model. At the same time, topological optimization can be performed to determine the optimal structural form of the 3D BIM model, such as type and attributes, so that the 3D BIM model corresponding to the underground cables and channels of the distribution network can achieve the goal of structural optimization while meeting functional requirements.

[0045] Step S203: Use the Unreal Engine to simulate the three-dimensional BIM model to generate a digital twin model of the distribution network.

[0046] Specifically, the project template also includes an automatic rendering module. Based on this, the step of simulating the three-dimensional BIM model using the Unreal Engine can be achieved by running the automatic rendering module. In other words, the step of rendering the three-dimensional BIM model by the automatic rendering module is the step of simulating the three-dimensional BIM model, thereby generating a digital twin model of the distribution network.

[0047] The digital twin model of the distribution network obtained by combining the above content not only realizes the digitization of the cable path direction, improves the management and fault location efficiency of the cable line, but also provides a solid basic model for subsequent high-precision simulation experiments, and provides a digital and high-precision support platform for the operation and maintenance of the cable line, thereby improving the digital operation and maintenance level of the cable line.

[0048] Applying the technical solution of the present application, firstly, the oblique photography technology is used to construct a three-dimensional real-life model of the ground environment of the distribution network in the Unreal Engine. On this basis, the parametric modeling technology is used to directly construct a three-dimensional BIM model of the underground cable of the distribution network and the channel of the underground cable of the distribution network in the three-dimensional real-life model that has been constructed. Then, the above-mentioned Unreal Engine is also used to simulate the three-dimensional BIM model in the three-dimensional real-life model, thereby generating a digital twin model of the distribution network. It can be seen that the digital twin model of the distribution network in the present application integrates oblique photography technology, parametric modeling technology and Unreal Engine, so that the generated digital twin model of the distribution network simultaneously displays the three-dimensional ground environment of the distribution network and the three-dimensional underground cable of the distribution network and the channel of the underground cable of the distribution network, thereby solving the problem of the inability to intuitively display the three-dimensional spatial relationship between the cable and the surrounding environment in the prior art. In addition, the digital twin model of the distribution network in the present application is generated in the Unreal Engine. Since the virtualization engine can perform high-simulation processing on the model by simulating the real environment, the ease of use of the high-performance simulation scene browsing of the digital twin model of the distribution network is improved. In addition, since the three-dimensional BIM model in this application is directly constructed in the three-dimensional real-scene model, the distribution network ground environment in the distribution network digital twin model can seamlessly connect with the distribution network underground cables and the channels of the distribution network underground cables, greatly improving the overall realism and usability of the distribution network digital twin model.

[0049] During the specific implementation process, the above-mentioned construction method may also include: obtaining multi-source data of the distribution network, the multi-source data including the second ledger information of the underground cables and channels of the distribution network and the monitoring data of the underground cables and channels of the distribution network; generating an operation and maintenance data display system based on the multi-source data and the digital twin model of the distribution network.

[0050] Specifically, the second ledger information may be the same as or different from the first ledger information. Specifically, the monitoring data may be obtained by monitoring various sensors arranged in the channel of the underground cable of the distribution network. Optionally, in the step of constructing a three-dimensional BIM model of the underground cable of the distribution network and the channel of the underground cable of the distribution network, corresponding sensor models may also be established for the various sensors, and the three-dimensional BIM model may include a sensor model.

[0051] Based on this, this application can establish a data fusion platform, which is the above-mentioned operation and maintenance data display system. Specifically, after obtaining the second ledger information and monitoring data of the underground cables and channels of the above-mentioned distribution network, these multi-source information can be synchronized to the distribution network digital twin model in real time through standardized processing of the data interface, thereby forming a dynamically updated operation and maintenance data display system. The operation and maintenance data display system has an interactive interface, so that the operation and maintenance personnel can easily view the cable status and historical records through the interactive interface, and quickly locate the problem, providing an intuitive and real-time basis for operation and maintenance decisions.

[0052] In addition, detailed attribute information of underground cables and auxiliary equipment in the distribution network can be embedded in the digital twin model of the distribution network to assist inspection personnel in quickly understanding the on-site conditions. In addition, the above detailed attribute information can be displayed on the operation and maintenance data display system.

[0053] Specifically, the 3D models of facilities such as the cable body, cable wells, and intermediate joints can be accurately integrated with the real environment, and the corresponding attribute labels can be displayed above or on the side, such as cable type, cable number, cable diameter, well cover size, cable burial depth, cable material, cable burial years, cable unit, cable status, and cable usage status. In this way, the inspection personnel can select the facilities of interest by clicking on the display interface of the transportation data display system, trigger the detailed attribute window, and display more detailed equipment information and records and other extended content.

[0054] In other optional implementations, the above-mentioned construction method may also include: standardizing the data in the distribution network digital twin model; and using the Web server to call the data of the distribution network digital twin model.

[0055] Specifically, Web Services are a new branch of Web applications. They are self-contained, self-describing and modular applications that can be described, published, found and called through the network (usually the Web). Web Services are network-based and distributed modular components that perform specific tasks and comply with specific technical specifications that enable Web Services to interoperate with other compatible components. It can use standard Internet protocols, such as the Hypertext Transfer Protocol HTTP and XML, to embody functions on the Internet and corporate intranets. The Web Service platform is a set of standards that defines how applications can achieve interoperability on the Web.

[0056] Through the above implementation method, the data in the digital twin model of the distribution network is standardized and called by the Web server, which can significantly improve the data interoperability, remote access capability, real-time response speed, independence and scalability, while ensuring data security, thereby bringing a full range of technical upgrades to the operation and maintenance management of the distribution network and improving the level of intelligent operation and maintenance of the power grid.

[0057] Optionally, an intelligent analysis module is embedded in the digital twin model, and data analysis technology or machine learning algorithms are used to conduct in-depth analysis of real-time monitoring data, automatically identify abnormal indicators, such as abnormal current fluctuations, temperature exceeding thresholds, voltage instability and other signals, and quickly lock potential fault points. When the model detects an abnormal cable status, it can use the three-dimensional geographic information and cable path data in the digital twin model to accurately locate the physical location of the fault, including the specific direction and depth of the underground cable and its relative position to other facilities, providing an intuitive geographic reference for fault handling.

[0058] The embodiment of the present application also provides a device for constructing a digital twin model of a distribution network. It should be noted that the device for constructing a digital twin model of a distribution network in the embodiment of the present application can be used to execute the method for constructing a digital twin model of a distribution network provided in the embodiment of the present application. The device is used to implement the above-mentioned embodiments and preferred implementation modes, and those that have been described will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceived.

[0059] The following introduces the device for constructing a digital twin model of a distribution network provided in an embodiment of the present application.

[0060] Figure 3 Schematic diagram of a device for constructing a digital twin model of a distribution network according to an embodiment of the present application. Figure 3 As shown, the device comprises:

[0061] The first construction module 10 is used to construct a three-dimensional real scene model of the ground environment of the distribution network in the Unreal Engine by using the oblique photography technology;

[0062] Specifically, oblique photography is an advanced photogrammetry technology that uses multiple (usually 4-5) high-resolution cameras at different angles on the same flying platform to photograph the ground, thereby obtaining more complete and detailed information about ground objects. It should be noted that, unlike traditional vertical photography, oblique photography can simultaneously capture the vertical perspective of the ground object and images from multiple oblique perspectives, which helps to build a three-dimensional model with rich texture and stereoscopic sense, and can more realistically reflect the actual shape and spatial position relationship of the ground object.

[0063] Specifically, Unreal Engine is a complete game development platform for next-generation game consoles and DirectX 9 personal computers, providing a large number of core technologies, data generation tools and basic support required by game developers. The main design purpose of Unreal Engine is to improve usability, and its usability mainly focuses on data and program writing, so that artists can complete as many game data resources as possible with only a small amount of assistance from professionals. Moreover, this process is carried out in a visual state, which not only improves usability, but also increases interest and is very convenient to operate.

[0064] Based on this, the present application combines the above-mentioned oblique photography technology and Unreal Engine to improve the realism of the three-dimensional real-scene model of the ground environment of the distribution network.

[0065] Optionally, the first construction module includes: a first acquisition unit, used to acquire an oblique photographic image of the ground environment of the distribution network; a first generation unit, used to generate an initial three-dimensional ground model of the ground environment of the distribution network based on the oblique photographic image and image processing software; a second generation unit, used to generate a three-dimensional real scene model based on the initial three-dimensional ground model and the Unreal Engine.

[0066] It is understandable that in order to obtain the oblique photographic image of the ground environment of the distribution network, a multi-angle camera can be used to shoot the ground environment of the distribution network using a drone, thereby obtaining multiple images of the ground environment of the distribution network at multiple different angles. The oblique photographic image of the ground environment of the distribution network includes the above multiple images. It is worth mentioning that when the ground environment of the distribution network is photographed at multiple different angles, the multiple different angles are used to shoot the same area of ​​the ground environment of the distribution network.

[0067] Subsequently, in order to construct a three-dimensional real scene model of the ground environment of the distribution network based on the multiple images captured, the multiple images can be input into the image processing software to run the image processing software to process the images and output an initial three-dimensional ground model containing rich textures and accurate geographic coordinates. For example, the above-mentioned image processing software is ContextCapture.

[0068] Next, the initial three-dimensional ground model can be imported into the Unreal Engine, so that the Unreal Engine can perform high-simulation processing on the initial three-dimensional ground model to simulate the real distribution network ground environment, thereby generating a three-dimensional real-scene model of the distribution network ground environment.

[0069] Optionally, this application not only generates a high-precision three-dimensional model of the ground environment of the distribution network through oblique photography technology, but also can output data results such as DSM, DOM, and DLG, embedding the real terrain characteristics, detailed textures and precise geographic information of the ground environment of the distribution network into the model, so that it can accurately reflect the three-dimensional spatial structure and geographic coordinate information of the ground environment of the distribution network. These data results provide an intuitive and accurate geospatial view for cable operation and maintenance, which helps operation and maintenance personnel to quickly locate cable facilities and understand their relationship with the surrounding environment, thereby improving the efficiency of troubleshooting and maintenance work.

[0070] The second construction module 20 is used to construct a three-dimensional BIM model of the underground cables of the distribution network and the channels of the underground cables of the distribution network in the three-dimensional real scene model by using a parametric modeling technology;

[0071] Specifically, the parametric modeling technology in this application is to use BIM technology in a three-dimensional real-life model, based on the known account information of underground cables in the distribution network and the channels of underground cables in the distribution network (including cable models, sizes, laying methods and channel sizes, etc.), to define the geometric characteristics, sizes and relationships of underground cables in the distribution network and their channels through a parametric method, so that the constructed three-dimensional BIM model can be updated according to changes in parameter values, thereby achieving rapid iteration and comparison of multiple solutions. This technology greatly improves the modeling efficiency and makes the three-dimensional modeling of cable operation and maintenance scenarios more flexible and efficient.

[0072] Specifically, the Unreal Engine in the present application may have a pre-stored project template, which includes a model automatic generation module and a BIM model library of underground cables of the distribution network and the channels of the underground cables of the distribution network. Based on this, in order to construct a three-dimensional BIM model of the underground cables of the distribution network and the channels of the underground cables of the distribution network, the above-mentioned project template in the Unreal Engine can be first obtained to use the above-mentioned automatic generation module and BIM model library in the process of constructing the three-dimensional BIM model of the underground cables and channels of the distribution network.

[0073] Optionally, the second construction module includes: a second acquisition unit, used to acquire first ledger information of underground cables and channels of the distribution network; a third generation unit, used to generate a three-dimensional BIM model based on the automatic generation module, the first ledger information and the target drawings corresponding to the underground cables and channels of the distribution network in the BIM model library.

[0074] In this step, the first ledger information may include the latitude and longitude coordinates of the cable well corresponding to the underground cables and channels of the distribution network, the cable burial depth, cable length, cable size, and cable laying method, etc. In order to generate a three-dimensional BIM model, the first ledger information can be input into the automatic generation module of the Unreal Engine, so that the automatic generation module can automatically generate a corresponding three-dimensional BIM model based on the input first ledger information and the target pattern corresponding to the underground cables and channels of the distribution network in the BIM model library. It can be seen that through this step of the present application, the operation and maintenance personnel do not need to create a model from scratch, but input specific parameters, and the model automatic generation module can quickly generate a three-dimensional model that meets the requirements.

[0075] In addition, during the modeling process, the structure of the 3D BIM model can be controlled through coding and constraints to ensure the correctness and consistency of the 3D BIM model. At the same time, topological optimization can be performed to determine the optimal structural form of the 3D BIM model, such as type and attributes, so that the 3D BIM model corresponding to the underground cables and channels of the distribution network can achieve the goal of structural optimization while meeting functional requirements.

[0076] The first generating module 30 is used to use the Unreal Engine to simulate the three-dimensional BIM model and generate a digital twin model of the distribution network.

[0077] Specifically, the project template also includes an automatic rendering module. Based on this, the step of simulating the three-dimensional BIM model using the Unreal Engine can be achieved by running the automatic rendering module. In other words, the step of rendering the three-dimensional BIM model by the automatic rendering module is the step of simulating the three-dimensional BIM model, thereby generating a digital twin model of the distribution network.

[0078] The digital twin model of the distribution network obtained by combining the above content not only realizes the digitization of the cable path direction, improves the management and fault location efficiency of the cable line, but also provides a solid basic model for subsequent high-precision simulation experiments, and provides a digital and high-precision support platform for the operation and maintenance of the cable line, thereby improving the digital operation and maintenance level of the cable line.

[0079] Applying the technical solution of the present application, firstly, the oblique photography technology is used to construct a three-dimensional real-life model of the ground environment of the distribution network in the Unreal Engine. On this basis, the parametric modeling technology is used to directly construct a three-dimensional BIM model of the underground cable of the distribution network and the channel of the underground cable of the distribution network in the three-dimensional real-life model that has been constructed. Then, the above-mentioned Unreal Engine is also used to simulate the three-dimensional BIM model in the three-dimensional real-life model, thereby generating a digital twin model of the distribution network. It can be seen that the digital twin model of the distribution network in the present application integrates oblique photography technology, parametric modeling technology and Unreal Engine, so that the generated digital twin model of the distribution network simultaneously displays the three-dimensional ground environment of the distribution network and the three-dimensional underground cable of the distribution network and the channel of the underground cable of the distribution network, thereby solving the problem of the inability to intuitively display the three-dimensional spatial relationship between the cable and the surrounding environment in the prior art. In addition, the digital twin model of the distribution network in the present application is generated in the Unreal Engine. Since the virtualization engine can perform high-simulation processing on the model by simulating the real environment, the ease of use of the high-performance simulation scene browsing of the digital twin model of the distribution network is improved. In addition, since the three-dimensional BIM model in this application is directly constructed in the three-dimensional real-scene model, the distribution network ground environment in the distribution network digital twin model can seamlessly connect with the distribution network underground cables and the channels of the distribution network underground cables, greatly improving the overall realism and usability of the distribution network digital twin model.

[0080] During the specific implementation process, in order to construct the above-mentioned device, it can also include: an acquisition module for acquiring multi-source data of the distribution network, the multi-source data including the second ledger information of the underground cables and channels of the distribution network and the monitoring data of the underground cables and channels of the distribution network; a second generation module for generating an operation and maintenance data display system based on the multi-source data and the digital twin model of the distribution network.

[0081] Specifically, the second ledger information may be the same as or different from the first ledger information. Specifically, the monitoring data may be obtained by monitoring various sensors arranged in the channel of the underground cable of the distribution network. Optionally, in the step of constructing a three-dimensional BIM model of the underground cable of the distribution network and the channel of the underground cable of the distribution network, a corresponding sensor model may also be established based on the various sensors, and the three-dimensional BIM model includes a sensor model.

[0082] Based on this, this application can establish a data fusion platform, which is the above-mentioned operation and maintenance data display system. Specifically, after obtaining the second ledger information and monitoring data of the underground cables and channels of the above-mentioned distribution network, these multi-source information can be synchronized to the distribution network digital twin model in real time through standardized processing of the data interface, thereby forming a dynamically updated operation and maintenance data display system. The operation and maintenance data display system has an interactive interface, so that the operation and maintenance personnel can easily view the cable status and historical records through the interactive interface, and quickly locate the problem, providing an intuitive and real-time basis for operation and maintenance decisions.

[0083] In addition, detailed attribute information of underground cables and auxiliary equipment in the distribution network can be embedded in the digital twin model of the distribution network to assist inspection personnel in quickly understanding the on-site conditions. In addition, the above detailed attribute information can be displayed on the operation and maintenance data display system.

[0084] Specifically, the 3D models of facilities such as the cable body, cable wells, and intermediate joints can be accurately integrated with the real environment, and the corresponding attribute labels can be displayed above or on the side, such as cable type, cable number, cable diameter, well cover size, cable burial depth, cable material, cable burial years, cable unit, cable status, and cable usage status. In this way, the inspection personnel can select the facilities of interest by clicking on the display interface of the transportation data display system, trigger the detailed attribute window, and display more detailed equipment information and records and other extended content.

[0085] In other optional embodiments, the above-mentioned construction device may also include: a standardization module, used to standardize the data in the distribution network digital twin model; and a calling module, used to call the data of the distribution network digital twin model using a Web server.

[0086] Specifically, Web Services are a new branch of Web applications. They are self-contained, self-describing and modular applications that can be described, published, found and called through the network (usually the Web). Web Services are network-based and distributed modular components that perform specific tasks and comply with specific technical specifications that enable Web Services to interoperate with other compatible components. It can use standard Internet protocols, such as the Hypertext Transfer Protocol HTTP and XML, to embody functions on the Internet and corporate intranets. The Web Service platform is a set of standards that defines how applications can achieve interoperability on the Web.

[0087] Through the above implementation method, the data in the digital twin model of the distribution network is standardized and called by the Web server, which can significantly improve the data interoperability, remote access capability, real-time response speed, independence and scalability, while ensuring data security, thereby bringing a full range of technical upgrades to the operation and maintenance management of the distribution network and improving the level of intelligent operation and maintenance of the power grid.

[0088] The construction device of the digital twin model of the distribution network includes a processor and a memory. The first construction module, the second construction module and the first generation module are stored in the memory as program units, and the processor executes the program units stored in the memory to realize the corresponding functions. The above modules are all located in the same processor; or, the above modules are located in different processors in any combination.

[0089] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and the problem of the inability to intuitively display the three-dimensional spatial relationship between the cable and the surrounding environment in the prior art is solved by adjusting kernel parameters.

[0090] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0091] An embodiment of the present invention provides a computer-readable storage medium, which includes a stored program, wherein when the program is running, the device where the computer-readable storage medium is located is controlled to execute a method for constructing a digital twin model of a distribution network.

[0092] Specifically, the construction method of the distribution network digital twin model includes:

[0093] Step S201, using oblique photography technology to construct a three-dimensional real scene model of the ground environment of the distribution network in the Unreal Engine;

[0094] Specifically, oblique photography is an advanced photogrammetry technology that uses multiple (usually 4-5) high-resolution cameras at different angles on the same flying platform to photograph the ground, thereby obtaining more complete and detailed information about ground objects. It should be noted that, unlike traditional vertical photography, oblique photography can simultaneously capture the vertical perspective of the ground object and images from multiple oblique perspectives, which helps to build a three-dimensional model with rich texture and stereoscopic sense, and can more realistically reflect the actual shape and spatial position relationship of the ground object.

[0095] Specifically, Unreal Engine is a complete game development platform for next-generation game consoles and DirectX 9 personal computers, providing a large number of core technologies, data generation tools and basic support required by game developers. The main design purpose of Unreal Engine is to improve usability, and its usability mainly focuses on data and program writing, so that artists can complete as many game data resources as possible with only a small amount of assistance from professionals. Moreover, this process is carried out in a visual state, which not only improves usability, but also increases interest and is very convenient to operate.

[0096] Based on this, the present application combines the above-mentioned oblique photography technology and Unreal Engine to improve the realism of the three-dimensional real-scene model of the ground environment of the distribution network.

[0097] Optionally, this application not only generates a high-precision three-dimensional model of the ground environment of the distribution network through oblique photography technology, but also can output data results such as DSM, DOM, and DLG, embedding the real terrain characteristics, detailed textures and precise geographic information of the ground environment of the distribution network into the model, so that it can accurately reflect the three-dimensional spatial structure and geographic coordinate information of the ground environment of the distribution network. These data results provide an intuitive and accurate geospatial view for cable operation and maintenance, which helps operation and maintenance personnel to quickly locate cable facilities and understand their relationship with the surrounding environment, thereby improving the efficiency of troubleshooting and maintenance work.

[0098] Step S202, using parametric modeling technology to construct a three-dimensional BIM model of the underground cables of the distribution network and the channels of the underground cables of the distribution network in the three-dimensional real scene model;

[0099] Specifically, the parametric modeling technology in this application is to use BIM technology in a three-dimensional real-life model, based on the known account information of underground cables in the distribution network and the channels of underground cables in the distribution network (including cable models, sizes, laying methods and channel sizes, etc.), to define the geometric characteristics, sizes and relationships of underground cables in the distribution network and their channels through a parametric method, so that the constructed three-dimensional BIM model can be updated according to changes in parameter values, thereby achieving rapid iteration and comparison of multiple solutions. This technology greatly improves the modeling efficiency and makes the three-dimensional modeling of cable operation and maintenance scenarios more flexible and efficient.

[0100] Specifically, the Unreal Engine in the present application may have a pre-stored project template, which includes a model automatic generation module and a BIM model library of underground cables of the distribution network and the channels of the underground cables of the distribution network. Based on this, in order to construct a three-dimensional BIM model of the underground cables of the distribution network and the channels of the underground cables of the distribution network, the above-mentioned project template in the Unreal Engine can be first obtained to use the above-mentioned automatic generation module and BIM model library in the process of constructing the three-dimensional BIM model of the underground cables and channels of the distribution network.

[0101] In this step, the first ledger information may include the latitude and longitude coordinates of the cable well corresponding to the underground cables and channels of the distribution network, the cable burial depth, cable length, cable size, and cable laying method, etc. In order to generate a three-dimensional BIM model, the first ledger information can be input into the automatic generation module of the Unreal Engine, so that the automatic generation module can automatically generate a corresponding three-dimensional BIM model based on the input first ledger information and the target pattern corresponding to the underground cables and channels of the distribution network in the BIM model library. It can be seen that through this step of the present application, the operation and maintenance personnel do not need to create a model from scratch, but input specific parameters, and the model automatic generation module can quickly generate a three-dimensional model that meets the requirements.

[0102] In addition, during the modeling process, the structure of the 3D BIM model can be controlled through coding and constraints to ensure the correctness and consistency of the 3D BIM model. At the same time, topological optimization can be performed to determine the optimal structural form of the 3D BIM model, such as type and attributes, so that the 3D BIM model corresponding to the underground cables and channels of the distribution network can achieve the goal of structural optimization while meeting functional requirements.

[0103] Step S203: Use the Unreal Engine to simulate the three-dimensional BIM model to generate a digital twin model of the distribution network.

[0104] Specifically, the project template also includes an automatic rendering module. Based on this, the step of simulating the three-dimensional BIM model using the Unreal Engine can be achieved by running the automatic rendering module. In other words, the step of rendering the three-dimensional BIM model by the automatic rendering module is the step of simulating the three-dimensional BIM model, thereby generating a digital twin model of the distribution network.

[0105] The digital twin model of the distribution network obtained by combining the above content not only realizes the digitization of the cable path direction, improves the management and fault location efficiency of the cable line, but also provides a solid basic model for subsequent high-precision simulation experiments, and provides a digital and high-precision support platform for the operation and maintenance of the cable line, thereby improving the digital operation and maintenance level of the cable line.

[0106] Optionally, constructing a three-dimensional real-scene model of the ground environment of the distribution network in the Unreal Engine includes: acquiring an oblique photographic image of the ground environment of the distribution network; generating an initial three-dimensional ground model of the ground environment of the distribution network based on the oblique photographic image and image processing software; generating a three-dimensional real-scene model based on the initial three-dimensional ground model and the Unreal Engine.

[0107] Optionally, the construction method further includes: obtaining a project template in the Unreal Engine, the project template including a model automatic generation module and a BIM model library of underground cables and channels of the distribution network.

[0108] Optionally, a three-dimensional BIM model of the underground cables and channels of the distribution network is constructed in the three-dimensional real-scene model, including: obtaining first ledger information of the underground cables and channels of the distribution network; generating a three-dimensional BIM model according to the automatic generation module, the first ledger information and the target drawings corresponding to the underground cables and channels of the distribution network in the BIM model library.

[0109] Optionally, the project template also includes an automatic rendering module to generate a digital twin model of the distribution network, including: running the automatic rendering module to enable the automatic rendering module to render the three-dimensional BIM model.

[0110] Optionally, the construction method also includes: obtaining multi-source data of the distribution network, the multi-source data including second ledger information of underground cables and channels of the distribution network and monitoring data of underground cables and channels of the distribution network; generating an operation and maintenance data display system based on the multi-source data and the digital twin model of the distribution network.

[0111] Optionally, the construction method also includes: standardizing the data in the distribution network digital twin model; and using the Web server to call the data of the distribution network digital twin model.

[0112] The embodiment of the present invention provides an electronic device, the device includes a processor, a memory, and a program stored in the memory and executable on the processor, and the processor implements at least the following steps when executing the program: using oblique photography technology, constructing a three-dimensional real scene model of the ground environment of the distribution network in the Unreal Engine; using parametric modeling technology, constructing a three-dimensional BIM model of the underground cables of the distribution network and the channels of the underground cables of the distribution network in the three-dimensional real scene model; using the Unreal Engine, simulating the three-dimensional BIM model to generate a digital twin model of the distribution network. The device in this article can be a server, a PC, a PAD, a mobile phone, etc.

[0113] Optionally, constructing a three-dimensional real-scene model of the ground environment of the distribution network in the Unreal Engine includes: acquiring an oblique photographic image of the ground environment of the distribution network; generating an initial three-dimensional ground model of the ground environment of the distribution network based on the oblique photographic image and image processing software; generating a three-dimensional real-scene model based on the initial three-dimensional ground model and the Unreal Engine.

[0114] Optionally, the construction method further includes: obtaining a project template in the Unreal Engine, the project template including a model automatic generation module and a BIM model library of underground cables and channels of the distribution network.

[0115] Optionally, a three-dimensional BIM model of the underground cables and channels of the distribution network is constructed in the three-dimensional real-scene model, including: obtaining first ledger information of the underground cables and channels of the distribution network; generating a three-dimensional BIM model according to the automatic generation module, the first ledger information and the target drawings corresponding to the underground cables and channels of the distribution network in the BIM model library.

[0116] Optionally, the project template also includes an automatic rendering module to generate a digital twin model of the distribution network, including: running the automatic rendering module to enable the automatic rendering module to render the three-dimensional BIM model.

[0117] Optionally, the construction method also includes: obtaining multi-source data of the distribution network, the multi-source data including second ledger information of underground cables and channels of the distribution network and monitoring data of underground cables and channels of the distribution network; generating an operation and maintenance data display system based on the multi-source data and the digital twin model of the distribution network.

[0118] Optionally, the construction method also includes: standardizing the data in the distribution network digital twin model; and using the Web server to call the data of the distribution network digital twin model.

[0119] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing an initialization program having at least the following method steps: using oblique photography technology to construct a three-dimensional real-life model of the ground environment of the distribution network in the Unreal Engine; using parametric modeling technology to construct a three-dimensional BIM model of the underground cables of the distribution network and the channels of the underground cables of the distribution network in the three-dimensional real-life model; using the Unreal Engine, simulating the three-dimensional BIM model to generate a digital twin model of the distribution network.

[0120] Optionally, constructing a three-dimensional real-scene model of the ground environment of the distribution network in the Unreal Engine includes: acquiring an oblique photographic image of the ground environment of the distribution network; generating an initial three-dimensional ground model of the ground environment of the distribution network based on the oblique photographic image and image processing software; generating a three-dimensional real-scene model based on the initial three-dimensional ground model and the Unreal Engine.

[0121] Optionally, the construction method further includes: obtaining a project template in the Unreal Engine, the project template including a model automatic generation module and a BIM model library of underground cables and channels of the distribution network.

[0122] Optionally, a three-dimensional BIM model of the underground cables and channels of the distribution network is constructed in the three-dimensional real-scene model, including: obtaining first ledger information of the underground cables and channels of the distribution network; generating a three-dimensional BIM model according to the automatic generation module, the first ledger information and the target drawings corresponding to the underground cables and channels of the distribution network in the BIM model library.

[0123] Optionally, the project template also includes an automatic rendering module to generate a digital twin model of the distribution network, including: running the automatic rendering module to enable the automatic rendering module to render the three-dimensional BIM model.

[0124] Optionally, the construction method also includes: obtaining multi-source data of the distribution network, the multi-source data including second ledger information of underground cables and channels of the distribution network and monitoring data of underground cables and channels of the distribution network; generating an operation and maintenance data display system based on the multi-source data and the digital twin model of the distribution network.

[0125] Optionally, the construction method also includes: standardizing the data in the distribution network digital twin model; and using the Web server to call the data of the distribution network digital twin model.

[0126] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0127] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0128] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0129] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0130] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0131] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0132] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0133] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0134] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0135] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0136] Applying the technical solution of the present application, firstly, the oblique photography technology is used to construct a three-dimensional real-life model of the ground environment of the distribution network in the Unreal Engine. On this basis, the parametric modeling technology is used to directly construct a three-dimensional BIM model of the underground cable of the distribution network and the channel of the underground cable of the distribution network in the three-dimensional real-life model that has been constructed. Then, the above-mentioned Unreal Engine is also used to simulate the three-dimensional BIM model in the three-dimensional real-life model, thereby generating a digital twin model of the distribution network. It can be seen that the digital twin model of the distribution network in the present application integrates oblique photography technology, parametric modeling technology and Unreal Engine, so that the generated digital twin model of the distribution network simultaneously displays the three-dimensional ground environment of the distribution network and the three-dimensional underground cable of the distribution network and the channel of the underground cable of the distribution network, thereby solving the problem of the inability to intuitively display the three-dimensional spatial relationship between the cable and the surrounding environment in the prior art. In addition, the digital twin model of the distribution network in the present application is generated in the Unreal Engine. Since the virtualization engine can perform high-simulation processing on the model by simulating the real environment, the ease of use of the high-performance simulation scene browsing of the digital twin model of the distribution network is improved. In addition, since the three-dimensional BIM model in this application is directly constructed in the three-dimensional real-scene model, the distribution network ground environment in the distribution network digital twin model can seamlessly connect with the distribution network underground cables and the channels of the distribution network underground cables, greatly improving the overall realism and usability of the distribution network digital twin model.

[0137] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for constructing a digital twin model of a distribution network, characterized in that: The construction method comprises: Using oblique photography technology, a 3D real-life model of the ground environment of the distribution network was constructed in Unreal Engine; Using parametric modeling technology, construct a three-dimensional BIM model of the underground cables of the distribution network and the channels of the underground cables of the distribution network in the three-dimensional real-scene model; The Unreal Engine is used to simulate the three-dimensional BIM model to generate a digital twin model of the distribution network.

2. The construction method according to claim 1, characterized in that: Build a 3D realistic model of the ground environment of the distribution network in Unreal Engine, including: Acquire an oblique photographic image of the ground environment of the distribution network; Generating an initial three-dimensional ground model of the ground environment of the distribution network according to the oblique photography image and image processing software; The three-dimensional real scene model is generated according to the initial three-dimensional ground model and the Unreal Engine.

3. The construction method according to claim 1, characterized in that: The construction method also includes: A project template in the Unreal Engine is obtained, wherein the project template includes a model automatic generation module and a BIM model library of the underground cables of the distribution network and the channel.

4. The construction method according to claim 3, characterized in that: Constructing a three-dimensional BIM model of underground cables and channels of the distribution network in the three-dimensional real-scene model includes: Obtaining first account information of the underground cable of the distribution network and the channel; The three-dimensional BIM model is generated according to the automatic generation module, the first ledger information and the target pattern corresponding to the underground cables of the distribution network and the channel in the BIM model library.

5. The construction method according to claim 3, characterized in that: The project template also includes an automatic rendering module to generate the distribution network digital twin model, including: The automatic rendering module is run to enable the automatic rendering module to render the three-dimensional BIM model.

6. The construction method according to claim 1, characterized in that: The construction method also includes: Acquire multi-source data of the distribution network, wherein the multi-source data includes second ledger information of the underground cables of the distribution network and the channel and monitoring data of the underground cables of the distribution network and the channel; An operation and maintenance data display system is generated based on the multi-source data and the distribution network digital twin model.

7. The construction method according to claim 1, characterized in that: The construction method also includes: Standardizing the data in the distribution network digital twin model; The data of the distribution network digital twin model is called by the Web server.

8. A device for constructing a digital twin model of a distribution network, characterized in that: The construction device comprises: The first construction module is used to construct a three-dimensional real scene model of the ground environment of the distribution network in the Unreal Engine by using oblique photography technology; A second construction module is used to construct a three-dimensional BIM model of the underground cables of the distribution network and the channels of the underground cables of the distribution network in the three-dimensional real scene model by using parametric modeling technology; The first generating module is used to use the Unreal Engine to simulate the three-dimensional BIM model to generate the digital twin model of the distribution network.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein, when the program is running, the device where the computer-readable storage medium is located is controlled to execute the method for constructing a distribution network digital twin model as described in any one of claims 1 to 7.

10. An electronic device, characterized in that: include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include a method for constructing a digital twin model of a distribution network as described in any one of claims 1 to 7.

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