CN116011322A

CN116011322A - Urban information display method, device, equipment and medium based on digital twinning

Info

Publication number: CN116011322A
Application number: CN202211627923.0A
Authority: CN
Inventors: 孙东良; 任建新; 夏钰辉; 赵晓敏; 杨舵; 罗程亮; 王雪颖; 吴志全; 孙珂
Original assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Current assignee: Beijing Baidu Netcom Science and Technology Co Ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-04-25

Abstract

The disclosure provides a city information display method, device, equipment and medium based on digital twinning, relates to the field of artificial intelligence, in particular to deep learning and digital twinning technology, and can be applied to smart city, city management and emergency management scenes. The specific implementation scheme is as follows: acquiring space information and real-time real city state information of an object to be displayed in a three-dimensional city space; determining camera acquisition parameters of the object to be displayed according to the space information and the real-time real city state information; and acquiring images of the objects to be displayed according to the camera acquisition parameters to obtain display images of the objects to be displayed under a target view angle, and displaying the display images of the objects to be displayed. The embodiment of the disclosure can improve the response speed of data display.

Description

Urban information display method, device, equipment and medium based on digital twinning

Technical Field

The disclosure relates to the field of artificial intelligence, in particular to deep learning and digital twinning technology, which can be applied to smart cities, urban management and emergency management scenes, and particularly relates to a digital twinning-based urban information display method, device, equipment and medium.

Background

The smart city is a new idea and a new mode of city development in the current world, and is a product of deep integration of new generation information technology innovation application and city economic and social development.

The smart city fully utilizes information technology in various industries of equipment in the city, realizes deep integration of informatization, industrialization and townization, is favorable for improving the quality of townization, realizes fine and dynamic management, improves the urban management effect and improves the living quality of citizens.

Disclosure of Invention

The disclosure provides a digital twinning-based city information display method, device, equipment and medium.

According to an aspect of the present disclosure, there is provided a digital twinning-based city information display method, including:

acquiring space information and real-time real city state information of an object to be displayed in a three-dimensional city space;

determining camera acquisition parameters of the object to be displayed according to the space information and the real-time real city state information;

and acquiring images of the objects to be displayed according to the camera acquisition parameters to obtain display images of the objects to be displayed under a target view angle, and displaying the display images of the objects to be displayed.

According to an aspect of the present disclosure, there is provided a digital twinning-based city information display device, including:

the real-time information acquisition module is used for acquiring space information and real-time real city state information of an object to be displayed in a three-dimensional city space;

the acquisition parameter determining module is used for determining camera acquisition parameters of the object to be displayed according to the space information and the real-time real city state information;

and the model image acquisition module is used for acquiring images of the objects to be displayed according to the camera acquisition parameters to obtain display images of the objects to be displayed under a target view angle and displaying the display images of the objects to be displayed.

According to another aspect of the present disclosure, there is provided an electronic device including:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the data processing method of the artificial intelligence of any embodiment of the present disclosure.

According to another aspect of the present disclosure, there is provided a non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the artificial intelligence data processing method according to any of the embodiments of the present disclosure.

According to another aspect of the present disclosure, there is provided a computer program object comprising a computer program which, when executed by a processor, implements the data processing method of artificial intelligence according to any embodiment of the present disclosure.

The embodiment of the disclosure can improve the response speed of data display.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following specification.

Drawings

The drawings are for a better understanding of the present solution and are not to be construed as limiting the present disclosure. Wherein:

FIG. 1 is a flow chart of a digital twinning-based city information presentation method disclosed in accordance with an embodiment of the present disclosure;

FIG. 2 is a schematic illustration of a parameter detection model disclosed in accordance with an embodiment of the present disclosure;

FIG. 3 is a flow chart of another digital twinning-based city information presentation method disclosed in accordance with an embodiment of the present disclosure;

FIG. 4 is a flow chart of another digital twinning-based city information presentation method disclosed in accordance with an embodiment of the present disclosure;

FIG. 5 is a flow chart of another digital twinning-based city information presentation method disclosed in accordance with an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of an IOC data structure model disclosed in accordance with an embodiment of the present disclosure;

FIG. 7 is a scene diagram of a digital twinning-based city information presentation method in accordance with an embodiment of the disclosure;

fig. 8 is a schematic structural view of a digital twinning-based city information display device according to an embodiment of the present disclosure;

fig. 9 is a block diagram of an electronic device for implementing a digital twinning-based city information presentation method in accordance with an embodiment of the present disclosure.

Detailed Description

Exemplary embodiments of the present disclosure are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present disclosure to facilitate understanding, and should be considered as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

Fig. 1 is a flowchart of a digital twinning-based urban information display method according to an embodiment of the present disclosure, which may be applicable to a situation where an urban space system displays information. The method of the embodiment can be executed by a city information display device based on digital twinning, the device can be realized in a software and/or hardware mode, and the device is specifically configured in electronic equipment with certain data operation capability, and the electronic equipment can be client equipment or server equipment, and the client equipment can be a mobile phone, a tablet computer, a vehicle-mounted terminal, a desktop computer and the like.

S101, acquiring space information and real-time real city state information of an object to be displayed in a three-dimensional city space.

The three-dimensional city space is a three-dimensional space formed by constructing a three-dimensional model based on city data and geographic information, is a physical mapping of a real city, and also comprises dynamic data of the real city, and reflects state information of dynamic change of the real city.

In the embodiment of the disclosure, the three-dimensional city space is a three-dimensional city space generated based on a smart city operation center (Intelligent Operations Center, IOC) system and is displayed on an IOC system screen, and the displayed screen is usually large in size and can be directly called as an IOC large screen. The IOC system can monitor and manage city services, obtain city information and display on a large screen. The user can browse city information on a large screen and formulate city management strategies and the like. The electronic device for implementing the digital twinning-based city information display method in the embodiment of the disclosure may include an IOC system, wherein the IOC system is connected with an IOC large screen.

The object to be displayed is an object that the user designates to be displayed, and may be an area, a building, a road, or even a coordinate point, which is not particularly limited. The spatial information may be static information, stable and constant over time, and the real-time real city status information may be dynamic information, which may vary over time. The spatial information may refer to information of a space occupied by an object to be displayed in a three-dimensional urban space, and in addition, the spatial information may also refer to spatial information of objects in a surrounding environment of the object to be displayed in the three-dimensional urban space. For example, the spatial information may include the self-position of the object to be displayed, the self-model structure (size and shape, etc.), the service properties, information of the surrounding three-dimensional model (roads, vegetation, other buildings, etc.), and the like. The real-time real city state information may refer to state information of a real city corresponding to a three-dimensional city space at the current moment, and is state information of the real city where a real geographic position corresponding to an object to be displayed is located. The real-time real city status information may include at least one of: traffic flow, people flow, unusual events, weather (rain, snow, wind or sunny etc.), illumination (day or night), vegetation (surrounding vegetation), etc. For example, the real-time real city status information includes illumination of a real geographic location corresponding to the object to be displayed, surrounding traffic and people stream vegetation, weather of the real city, and the like.

S102, determining camera acquisition parameters of the object to be displayed according to the space information and the real-time real city state information.

The space information is used for determining the self form of the object to be displayed, the shielding condition of the object to be displayed in the surrounding environment of the object to be displayed can also be determined, and the real-time real city state is used for determining the interference of the real environment on the image of the object to be displayed. The camera acquisition parameters are used for acquiring the image with the best quality of the object to be displayed at the best view angle. The camera acquisition parameters may include: camera position, camera rotation angle, and camera parameters of a camera in three-dimensional urban space. Wherein the camera position may be coordinates relative to the center position and the camera parameters may include camera scaling. In addition, the camera parameters may also include a camera duration range or a camera focal length, etc., which are not particularly limited.

The determining of the camera acquisition parameters can be determining the camera acquisition parameters with the best image quality according to the space information and the real-time real city state information. Wherein, the characteristics of the image with the best quality can be determined according to different requirements. The image quality may preferably be defined based on at least one of occlusion, object information richness, sharpness, light brightness, and flow. Exemplary, camera acquisition parameters when images without shielding, with the clearest, moderate brightness and the richest object information can be acquired are determined according to the space information and the real-time real city state information, and the camera acquisition parameters are determined as the camera acquisition parameters of the object to be displayed. For another example, according to the space information and the real-time real city state information, camera acquisition parameters which can acquire the maximum flow without shielding and are the most clear are determined, and the camera acquisition parameters are determined as the camera acquisition parameters of the object to be displayed.

Specifically, the characteristics of the images under the camera acquisition parameters can be detected by calculating a plurality of preset camera acquisition parameters, and correspondingly, the relation between the values of the parameters and the characteristics in the camera acquisition parameters is established, so that the score of each parameter combination is calculated according to the characteristics of the image with the best image quality, and the camera acquisition parameters are screened. As another example, camera acquisition parameters of the object to be displayed may be detected by a pre-trained deep learning model. By way of example, the deep learning model may be a neural network model, a convolutional neural network model, a recurrent neural network model, or the like.

Optionally, the determining the camera acquisition parameters of the object to be displayed according to the spatial information and the real-time real city state information includes: inputting the space information and the real-time real city state information into a pre-trained parameter detection model to obtain camera acquisition parameters output by the parameter detection model; the parameter detection model is obtained through training samples in advance, wherein the training samples comprise spatial information of sample objects, real city state information of the samples and camera acquisition parameters corresponding to sample model images under the optimal view angles.

The parameter detection model is used for detecting camera parameters of the object to be displayed according to the space information and the real-time real city state information of the object to be displayed. The parameter detection model is illustratively a neural network model, the structure of which is shown in fig. 2, and the parameter detection model includes a 3-layer network, each layer including 5 neurons. By comparing the accuracy, precision and recall rate of different neuron numbers and layers, the experiment determines that the best fitting effect is obtained when the neuron number is 5 and the layer number is 3. Meanwhile, the convolutional neural network, the cyclic neural network and the traditional calculation method are compared, and the fitting effect is not as good as that of the model structure shown in fig. 2.

The camera acquisition parameters corresponding to the sample model image under the optimal view angle can be manually adjusted to acquire the image of the sample object under the condition that the space information of the sample object and the real city state information of the sample are fixed, so that the acquired image of the sample object is the image with the best quality. And taking the camera acquisition parameters corresponding to the image at the moment, the space information of the sample object and the real city state information of the sample as the same training sample.

In fact, in the display process of the three-dimensional urban space, a user can randomly select an object to be displayed, camera acquisition parameter debugging is difficult to be carried out on all three-dimensional models in the three-dimensional urban space in advance, and a large amount of space is occupied for storing debugging results. In addition, as real-time real city state information can be changed continuously, complexity is increased for debugging the acquisition parameters of the camera.

The parameter detection model can accelerate the detection speed of the camera acquisition parameters, reduce the labor cost of parameter adjustment, improve the display efficiency of the objects to be displayed,

s103, according to the camera acquisition parameters, image acquisition is carried out on the object to be displayed, a display image of the object to be displayed under a target view angle is obtained, and the display image of the object to be displayed is displayed.

The camera acquires parameters to acquire a display image for describing the condition of observing an object to be displayed under a target view angle. The camera acquisition parameters correspond to the target viewing angle. And displaying the display image.

In the prior art, when a building is displayed in a three-dimensional map, the position and angle of a camera are usually manually selected, and the position and angle of the camera are continuously adjusted through a preview effect, so that a great deal of time is required for each generated view, and a great deal of manual operation is required for realizing the view. Or directly adopting a standard default position and a default angle to acquire and display the image of the building, wherein the image generated by the display diagram can be under the conditions of unclear display diagram, low image quality such as too little building information and the like due to shielding of the surrounding environment of the building and the like.

According to the technical scheme, the camera acquisition parameters of the object to be displayed in the three-dimensional city space are determined by acquiring the space information and the real-time real city state information of the object to be displayed in the three-dimensional city space, and the object to be displayed is subjected to image acquisition in the three-dimensional city space based on the camera acquisition parameters, so that a display image under a target visual angle is obtained, and is displayed, the operation complexity and the labor cost for debugging the camera acquisition parameters can be reduced, the camera parameter detection speed is accelerated, and therefore the display efficiency of an object model is improved.

Fig. 3 is a flowchart of another digital twinning-based city information display method according to an embodiment of the present disclosure, further optimized and expanded based on the above technical solution, and may be combined with the above various alternative embodiments. The method comprises the steps of obtaining space information and real-time real city state information of an object to be displayed in a three-dimensional city space, wherein the real-time real city state information comprises the following steps: acquiring an object to be displayed input by a user; requesting spatial information of the object to be displayed in a three-dimensional city space and real-time real city state information related to the position of the object to be displayed from a digital twin map system; and receiving the space information and the real-time real city state information fed back by the digital twin map system.

S301, acquiring an object to be displayed, which is input by a user.

The object to be presented is specified by the user. The user inputs the identification information of the object to be displayed, or the user inputs the longitude and latitude coordinates of the object to be displayed. And determining the object to be displayed input by the user according to the user input information. The object to be presented may include a certain building, and/or a certain custom area, entered by the user.

S302, requesting spatial information of the object to be displayed in the three-dimensional city space and real-time real city state information related to the position of the object to be displayed from a digital twin map system.

The digital twin technology fully utilizes data such as a physical model, sensor updating and operation history, integrates simulation processes of multiple disciplines, multiple physical quantities, multiple scales and multiple probabilities, and completes mapping in a virtual space, thereby reflecting the full life cycle process of corresponding entity equipment. The three-dimensional city space based on the digital twin system is not only used for constructing a static three-dimensional space, but also can realize the perception of real-time equipment data in a space scene, intelligent algorithm application, business data management and space fusion, and the capability of calculating and deducting in the future after combination. In the three-dimensional urban space, besides the space elements directly related to the business, other real world elements (such as vegetation, illumination, wind power and the like) are also carved completely; the space data detail is far higher than that of the traditional three-dimensional model, and a high-precision map is adopted to restore roads, and a building information model (Building Information Modeling) is adopted to restore buildings; the three-dimensional city space is also accessed with real-time data (vehicles, crowd, weather conditions, etc.), and a real physical world is mapped.

In the embodiment of the disclosure, the three-dimensional urban space is generated based on the IOC system combined with the digital twin system. The digital twin map system may provide three-dimensional geographic information, as well as provide real city data. The digital twin map system can inquire the size (length, width and height) and position of the three-dimensional model, traffic flow, weather, illumination and the like.

S303, receiving the space information and the real-time real city state information fed back by the digital twin map system.

S304, determining camera acquisition parameters of the object to be displayed according to the space information and the real-time real city state information.

Optionally, the obtaining the object to be displayed input by the user includes: acquiring a target area input by the user and at least one concerned building in the target area; wherein the space information includes boundary information of the target area in the three-dimensional city space and three-dimensional model size information and three-dimensional model position information of each building of interest in the three-dimensional city space; the real-time real city state information comprises real-time traffic information of adjacent roads and internal roads of the target area and real-time natural environment information associated with the target area; the camera acquisition parameters comprise camera acquisition parameters of a target area and camera acquisition parameters of each building concerned; the image acquisition is carried out on the object to be displayed according to the camera acquisition parameters to obtain a display image of the object to be displayed under a target view angle, and the display image of the object to be displayed is displayed, and the method comprises the following steps: and acquiring an image of the target area according to the camera acquisition parameters of the target area, and obtaining a display image of the target area under a target view angle corresponding to the camera acquisition parameters of the target area.

The object to be presented may include a target area, the extent of which is determined by the user, and the target area may include, for example, a administrative district, a campus, or an area of any specified extent, etc. A building of interest may refer to a building in a target area. The display image is an image of the target area, and a building of interest is displayed in the display image. In the target area, the user may designate a building of interest, determined to be a building of interest. Further, the object to be displayed may include only the target area, no building, or the object to be displayed may include only a certain building of interest, no target area.

The boundary information is used to define a range of the target region in the three-dimensional city space, and the boundary information may include coordinates of a plurality of boundary points of the target region on a boundary line of the three-dimensional city space. The three-dimensional model size information includes the length, width, and height of the building of interest. The three-dimensional model location information includes a location of the three-dimensional model of the building of interest in three-dimensional city space, the location corresponding to a geographic location of the building of interest. The shape of the building of interest may be an irregular spatial solid, and the maximum length, the maximum width, and the maximum height may be used as three-dimensional model size information.

The real-time traffic information of the adjacent roads and the interior roads of the target area may include the traffic and the flow of the roads near the target area, the traffic and the flow of the interior roads, and the like. The real-time natural environment information associated with the target area may include weather, illumination, surrounding vegetation, and intra-area vegetation of a real area corresponding to the target area at the current time.

The camera acquisition parameters of the target area are used to acquire an image of the target area at an optimal viewing angle. The camera acquisition parameters of the building of interest are used to acquire images of the building of interest at an optimal viewing angle. The building concerned is a building which is interested by the user, the current display content is a target area, and the building concerned can be the content to be displayed in the future by the user. The real-time real city state information is stable and unchanged in a short time, so that camera acquisition parameter calculation can be performed on each concerned building in advance according to the real-time real city state information. Accordingly, the camera acquisition parameters at this time include camera acquisition parameters of the target area and camera acquisition parameters of the building of interest within the target area, wherein the number of the latter camera acquisition parameters is at least one.

And acquiring the display image by adopting the camera acquisition parameters of the target area when the display content at the current moment is the target area. And stores camera acquisition parameters for the building of interest.

When a user designates a target area as an object to be displayed, at least one building concerned can be selected, camera acquisition parameters of the target area and the building concerned are calculated respectively, the camera acquisition parameters of the building concerned can be generated in advance, the display speed of the building concerned is accelerated, space information is embodied into model size and position, real-time real city state information is embodied into traffic and natural environment information, the information of the object to be displayed is further enriched, and an image with the best quality is determined more accurately.

Optionally, the city information display method based on digital twinning further includes: receiving a display instruction of the concerned building; acquiring an image of the concerned building according to the camera acquisition parameters of the concerned building to obtain a display image of the concerned building under a target view angle corresponding to the camera acquisition parameters of the concerned building; a display image of the building of interest is displayed.

The display instructions are for displaying a display image of a three-dimensional model of a building of interest. In the former step, the camera acquisition parameters of the concerned building are already calculated together with the camera acquisition parameters of the target area, and at this time, the camera acquisition parameters of the concerned building pointed by the display instruction can be directly inquired from the stored camera acquisition parameters of a plurality of concerned buildings. And the camera acquisition parameters are adopted to acquire the display image of the concerned building, and the display is carried out.

It should be noted that, if the building pointed by the instruction is different from the building concerned, it is necessary to calculate again according to the spatial information of the pointed building and the real-time real city status information.

When a display instruction of the concerned building is received, camera acquisition parameters of the concerned building, which are calculated in advance, are quickly acquired, and corresponding display images are generated for display, so that the display speed of the concerned building can be increased, the waiting display time is shortened, and the response speed of the display instruction of the concerned building is improved.

Optionally, the object to be displayed only includes a target area input by the user, and the corresponding spatial information includes boundary information of the target area in the three-dimensional city space. Or the object to be displayed only comprises the attention building input by the user; accordingly, the space information includes model size information and model position information of the building of interest in the three-dimensional city space, and the real-time real city state information includes real-time traffic information of the neighboring roads of the building of interest and real-time natural environment information associated with the building of interest.

Optionally, the determining the camera acquisition parameters of the object to be displayed according to the spatial information and the real-time real city state information includes: acquiring the display dimension of the three-dimensional city space; and determining camera acquisition parameters of the object to be displayed according to the display dimension, the space information and the real-time real city state information.

The display dimension is used for determining the display key content of the three-dimensional space city, can be determined through the key attention content of the IOC system, and can be a display theme of the IOC system. The display dimension is an industrial vendor, and the display image of the IOC large screen comprises more company related information of each floor in the current building or renting and selling conditions of each land block in the current park. For another example, the display dimension is a major activity guarantee, and the corresponding display image more includes traffic, people flow, suspicious personnel and other situations around the major activity place. Different presentation dimensions correspond to different attention requirements of the user. Exemplary presentation dimensions include urban governance, smart parking, major activity support, industrial recruitment or smart emergency, etc.

Different parameter detection models can be trained for different display dimensions respectively. And inputting the space information and the real-time real city state information into a parameter detection model corresponding to the display dimension to obtain the camera acquisition parameters of the object to be displayed.

And respectively designing a deep learning model for different demonstration dimensions, debugging and selecting the optimal angle of the camera, and recording the input and output information to obtain 1000 training samples. And randomly selecting 800 training samples as training data of the parameter detection model to finish training of the parameter detection model. The remaining 200 data are used as a validation set to evaluate the fitting effect of the parameter detection model.

The camera acquisition parameters of the object to be displayed are determined by acquiring the display dimension of the three-dimensional city space and combining the display dimension with the space information and the real-time real city state information, so that the requirements can be flexibly adjusted in real time according to the parameters, the camera acquisition parameters can be accurately detected according to the requirements, the viewing angle flexibility of the displayed image is improved, and the accuracy of the displayed content of the image is improved.

S305, acquiring images of the objects to be displayed according to the camera acquisition parameters, obtaining display images of the objects to be displayed under a target view angle, and displaying the display images of the objects to be displayed.

According to the technical scheme, the space information is acquired based on the digital twin map, the real city state information is implemented, the complete mapping of real world elements is achieved on the basis of the construction of the static three-dimensional space, the authenticity and the content richness of the three-dimensional city space are increased, in a display scene of the three-dimensional city space based on the digital twin technology, camera acquisition parameters of an object to be displayed are determined according to the real rich information, the detection precision of the camera acquisition parameters can be improved, and the model display efficiency of the three-dimensional city space based on the digital twin technology is improved.

Fig. 4 is a flowchart of another digital twinning-based city information display method according to an embodiment of the present disclosure, further optimized and expanded based on the above technical solution, and may be combined with the above various alternative embodiments. The city information display method based on digital twinning further comprises the following steps: acquiring a display level input by a user in an urban space display page; and under the condition that the display level is an optional area level, acquiring the object to be displayed input by the user.

S401, acquiring a display level input by a user in the urban space display page.

The city space display page is displayed with a model image of the three-dimensional city space and city information. The three-dimensional city space comprises a large number of three-dimensional models and corresponding city information, the three-dimensional models and the corresponding city information can be divided, and each type is determined to be a display level. And displaying the model image and city information corresponding to the display hierarchy in one display hierarchy. Different presentation levels display different model images and different city information.

S402, acquiring the object to be displayed input by the user under the condition that the display level is an optional area level.

The selectable region hierarchy refers to a hierarchy in which a user can designate an object to be displayed, and acquire an image of the best view angle. Generally, the selectable region level may refer to a level at which the model image can be clearly browsed to city details. Illustratively, the presentation hierarchy may be a hierarchy of administrative divisions. For example, the presentation hierarchy includes provinces, cities, regions, streets, communities, parks, buildings, and the like. Among other optional area levels, the street level, community level, campus level, and building level may be included. When the user selects any one of the street level, community level, campus level and building level, the user can specify the object to be displayed, acquire the camera acquisition parameters and perform the best view display.

S403, acquiring space information and real-time real city state information of the object to be displayed in the three-dimensional city space.

S404, determining camera acquisition parameters of the object to be displayed according to the space information and the real-time real city state information.

S405, according to the camera acquisition parameters, image acquisition is carried out on the object to be displayed, a display image of the object to be displayed under a target view angle is obtained, and the display image of the object to be displayed is displayed.

Optionally, the city information display method based on digital twinning further includes: acquiring a display content type corresponding to the display level; acquiring display content corresponding to the display content type of the display hierarchy; the displaying the display image of the object to be displayed comprises the following steps: and generating a display page corresponding to the display level according to the display content and the display image of the display level, and displaying the display page corresponding to the display level.

In addition to the display image of the object to be displayed, the content corresponding to the current hierarchy needs to be displayed. For example, content may include events, event processing flows, resource changes, and personnel flows, among others. The presentation content types correspond to presentation levels, and different presentation levels may be configured with the same or different presentation content types. And acquiring corresponding data according to the display content type corresponding to the display level, generating corresponding display content, and simultaneously displaying the display content and the display image in the display page. In the display levels except the selectable area level, acquiring display images according to standard camera acquisition parameters, or directly acquiring pre-stored display images and display contents corresponding to the display levels, and displaying in a display page.

Specifically, the urban space display page is used for interacting with a user, receiving a display level designated by the user, acquiring display content and display images of the display level, generating a new display page, and covering the original urban space display page to display or jumping to the new display page to display, so that display of the display content and the display images corresponding to the display level is realized.

Illustratively, the provincial level corresponds to a presentation content type that includes population, weather, land area, and the like. The types of the display content corresponding to the city level comprise population, traffic flow, house number and the like. The types of the display content corresponding to the park level comprise the types of people flow, enterprise numbers, leased land areas and the like.

Different display contents are displayed in different levels, so that the display requirements of users on different attention contents of different levels can be met, focusing on key points of attention of the users in the city is realized, the application scene of the digital twin map is increased, and the display contents of the IOC are enriched.

Optionally, the city information display method based on digital twinning further includes: periodically acquiring city basic data corresponding to the three-dimensional city space; counting the city basic data to obtain display contents corresponding to each display content type; and storing the display content corresponding to each display content type.

Urban base data may refer to directly collected urban information. The display content can be obtained by processing city basic data. The storage of the display content can be offline statistics and storage, and when the display needs exist, the display content is directly obtained from the pre-stored data and displayed, so that the display speed is increased.

Illustratively, the city base data includes the name, type, time of reporting, and address of reporting of the event. The statistics on city base data may be distribution data that counts different daily events according to event type, grid level, or grid identification (id).

By avoiding real-time calculation, urban basic data are periodically acquired and stored in a statistical mode in advance, the problem that the data calculation speed is low under large data volume can be solved, the response speed of a data statistical interface is improved, and the data display efficiency is improved.

According to the technical scheme, the display level input by the user is obtained, the urban space display page is differentiated to display corresponding contents according to the display level, the level of the display contents is increased, the display contents are flexibly adjusted, and the richness and diversity of the display contents of the three-dimensional urban space are increased.

Fig. 5 is a flowchart of a digital twinning-based city information display method according to the technical scheme of the present disclosure. As shown in fig. 5, the city information display method based on digital twinning includes:

the development of urban vitality often takes an important node of the city as a support, and takes the important node as an anchor point to realize the aggregation of various functional states of the city and promote the prosperity of people in the exchange and consumption. Under the support of traffic and business aggregation, the urban anchor point is a lever for attracting the commercial space to gather and pry the urban consumption space to develop and promote the consumption space flow. Through monitoring various data indexes of cities, gradually drilling down and analyzing each aggregation point, searching for an anchor point for increasing the vitality of the cities and monitoring the anchor point again, taking measures in time to promote the sustainable development of the cities and create new vitality increasing points and city business cards of the cities. Under the background of accelerating the promotion of the modernization of a urban social management system, 5-level urban anchor points of cities, areas, streets, communities and grids can be created, and the macroscopic situation, the regional operation situation, the street, community and grid social management profile information of the cities are displayed, so that a new social management modernization mode of longitudinal bottom to side, lateral to side, community self-circulation, street microcirculation, regional small circulation and urban large circulation is realized.

S501, acquiring a display level input by a user in the urban space display page.

Each presentation level may be understood as an anchor point to a three-dimensional urban space.

S502, acquiring the object to be displayed input by the user under the condition that the display level is an optional area level.

And S503, acquiring space information and real-time real city state information of the object to be displayed in the three-dimensional city space.

S504, inputting the space information and the real-time real city state information into a pre-trained parameter detection model to obtain camera acquisition parameters output by the parameter detection model.

S505, according to the camera acquisition parameters, image acquisition is carried out on the object to be displayed, and a display image of the object to be displayed under a target view angle is obtained.

The camera acquisition parameters can be understood as setting more specific display anchor points for the area of the custom range or more specific buildings, and realizing focus anchor point display.

S506, acquiring the display content type corresponding to the display level.

S507, obtaining the display content corresponding to the display content type of the display hierarchy.

The display content can be obtained by the following steps: periodically acquiring city basic data corresponding to the three-dimensional city space; counting the city basic data to obtain display contents corresponding to each display content type; and storing the display content corresponding to each display content type.

Existing IOC systems use mvc three-layer models (Model, view, and Controller controllers). Specifically, the Model in the IOC system includes a Service layer (business logic layer) and a Dao layer (data persistence layer). The IOC large screen receives the display instruction, sends the display instruction to a Controller layer (request processing layer) for processing, determines data to be displayed, requests the Service layer, calls a Dao layer to inquire a database, performs statistical calculation on the inquired data, feeds the statistical calculation back to the Controller layer, and displays the data through the IOC large screen. Typically, the Service layer calls the Dao layer to query the database and then writes the code for calculation. The Dao layer directly reads the bottom data and directly calculates the bottom data as large-screen statistical data in the Service layer, so that the problems of repeated development and complex calculation exist, the development time is long, the Service layer is bulky, the code readability is weak, the follow-up iteration updating is difficult, and the bug modification difficulty is high. The real-time computing interface has the advantages of complex computation and too slow response speed, and influences the display effect of the screen. If the calculation process is put in the Dao layer, the sql (Structured Query Language ) statement is complex, and the associated query has more problems.

In the embodiment of the present disclosure, as shown in fig. 6, an IOC data structure model is designed based on Springboot, specifically, a data calculation layer (calculation layer) is additionally provided in the mvc three-layer model. The data of the data calculation layer is derived from the basic data and the external data. The data calculation layer designs a statistical table or a cache table through project requirements, performs statistical calculation by utilizing bottom data or external data in combination with requirements, designs a timing task according to data refreshing frequency, and stores the statistical data obtained by timing calculation into the statistical table. The Service layer directly requests the data of the data calculation layer or the basic data layer, completes the combination of the data according to the requirement, and feeds back the data to the Controller layer, and the Controller layer controls the IOC large screen to display. In addition, the Service layer can also obtain external requests through the open interface, request the data of the data calculation layer or the basic data layer, complete the combination of the data according to the requirements, obtain response results, and feed back to the requester calling the open interface.

And the semi-decoupling state of the statistical data and the original data of the IOC system is realized through the configuration data calculation layer. The specific implementation is that a data calculation layer is added in the mvc three-layer model, and the functions of other layers are redefined. The Dao layer directly associates the data table, and only performs most basic addition, deletion and modification check on the data.

S508, generating a display page corresponding to the display level according to the display content and the display image of the display level, and displaying the display page corresponding to the display level.

In one specific example, embodiments of the present disclosure may be applied to a municipality governance scenario. As shown in the data structure diagram of fig. 7, the data is divided into basic data and calculation data, and the basic data and the calculation data are directly accessed through the Dao layer. The data calculation layer is responsible for realizing the process from the basic data to the calculation of the statistical data.

The basic data is the data with the finest granularity in the project, and can be split into events, grids, grid members and the like according to the requirements of the urban management. The basic data record is an entire flow of event processing in the municipal administration process. The event comprises an event processing table and an event information table. The event information table inserts data when the event is reported, and specifically includes the name, type, reporting time, reporting address, and the like of the event. Event handling is a stream of events, each processing step of an event is shown in this table. The grids comprise five-level grids, namely a city grid, a region grid, a street grid, a community grid and a cell grid, and each grid comprises information such as a central position coordinate, a name and the like. The mesh member includes information such as the name of the mesh member, telephone number, and mesh to which the mesh member belongs. The interview of the gridding member comprises an interview record of each time of the gridding member, and specifically comprises the type of interview person, details of interview, interview address and the like. The basic data is collected according to the finest granularity, and can be recorded by adopting a wide table, wherein the table contains all fields of the bottom data.

The calculation statistics originate from the underlying data. And designing corresponding tables according to the basic data and project requirements, wherein the tables comprise event statistics, grid member visit statistics, event grid members and the like. For example: and counting the distribution of different daily events according to the event type, the grid level and the grid id. The data calculation layer performs grouping calculation on the data of the basic data layer through a timing task and then inserts the data into a calculation statistics table at fixed time. The Service layer calls data of the data calculation layer or the Dao layer according to the Service logic to realize various large-screen scenes, such as urban anchor points, urban and rural management and other requirements.

According to the technical scheme, the method and the device can be applied to various theme scenes such as urban vitality and urban management according to different display requirements of users on cities. The IOC large screen comprises a plurality of layers from province to city to district, to street, community, specific buildings and the like, the total data quantity of each layer is large, the statistical calculation logic is complex, the decoupling of calculation and display is realized through the data calculation layer, the development iteration speed of the IOC large screen is improved, the problem of code swelling of the Service layer is avoided, the code readability is improved, the bug modification difficulty is reduced, and the response speed of the interface is improved. The large-screen multi-layer display data size is huge, indexes of interest of each layer of the user are different, the IOC data model achieves the goal of large-screen multi-layer display, and the problem that the data calculation speed is low under the condition of large data size is solved. The parameter detection model is mainly applied to focusing display of a self-selected area and a building in an IOC large screen, so that the optimal display effect is quickly obtained, and the labor cost is reduced.

Fig. 8 is a block diagram of a digital twinning-based urban information presentation apparatus according to an embodiment of the present disclosure, which is applicable to a case where an urban space system presents information. The device is realized by software and/or hardware, and is specifically configured in the electronic equipment with certain data operation capability.

A digital twinning-based city information display device 800, as shown in fig. 8, comprising: a real-time information acquisition module 801, an acquisition parameter determination module 802 and a model image acquisition and display module 803. Wherein, the liquid crystal display device comprises a liquid crystal display device,

the real-time information acquisition module 801 is configured to acquire spatial information and real-time real city state information of an object to be displayed in a three-dimensional city space;

the acquisition parameter determining module 802 is configured to determine camera acquisition parameters of the object to be displayed according to the spatial information and the real-time real city status information;

the model image acquisition and display module 803 is configured to perform image acquisition on the object to be displayed according to the camera acquisition parameters, obtain a display image of the object to be displayed under a target viewing angle, and display the display image of the object to be displayed.

Further, the real-time information obtaining module 801 includes: the object to be displayed receiving unit is used for acquiring the object to be displayed input by the user; the digital twin data request unit is used for requesting spatial information of the object to be displayed in the three-dimensional city space and real-time real city state information related to the position of the object to be displayed from the digital twin map system; and the digital twin data receiving unit is used for receiving the space information and the real-time real city state information fed back by the digital twin map system.

Further, the object receiving unit to be displayed includes: a target area receiving subunit, configured to obtain a target area input by the user and at least one building of interest in the target area; wherein the space information includes boundary information of the target area in the three-dimensional city space and three-dimensional model size information and three-dimensional model position information of each building of interest in the three-dimensional city space; the real-time real city state information comprises real-time traffic information of adjacent roads and internal roads of the target area and real-time natural environment information associated with the target area; the camera acquisition parameters comprise camera acquisition parameters of a target area and camera acquisition parameters of each building concerned; the model image acquisition and display module 803 includes: and the region image acquisition unit is used for acquiring images of the target region according to the camera acquisition parameters of the target region, obtaining a display image of the target region under a target view angle corresponding to the camera acquisition parameters of the target region, and displaying the display image of the target region.

Further, the city information display device based on digital twinning further comprises: the display instruction receiving module is used for receiving the display instruction of the concerned building; the building image acquisition module is used for acquiring images of the concerned building according to the camera acquisition parameters of the concerned building to obtain a display image of the concerned building under a target view angle corresponding to the camera acquisition parameters of the concerned building; and the building image display module is used for displaying the display image of the concerned building.

Further, the acquisition parameter determining module 802 includes: the display dimension acquisition unit is used for acquiring the display dimension of the three-dimensional city space; and the acquisition parameter detection unit is used for determining camera acquisition parameters of the object to be displayed according to the display dimension, the space information and the real-time real city state information.

Further, the acquisition parameter determining module 802 includes: the model detection unit is used for inputting the space information and the real-time real city state information into a pre-trained parameter detection model to obtain camera acquisition parameters output by the parameter detection model; the parameter detection model is obtained through training samples in advance, wherein the training samples comprise spatial information of sample objects, real city state information of the samples and camera acquisition parameters corresponding to sample model images under the optimal view angles.

Further, the city information display device based on digital twinning further comprises: the display level detection module is used for acquiring a display level input by a user in the urban space display page; and the selectable region hierarchy display module is used for acquiring the object to be displayed, which is input by the user, under the condition that the display hierarchy is the selectable region hierarchy.

Further, the city information display device based on digital twinning further comprises: the hierarchy type acquisition module is used for acquiring the display content type corresponding to the display hierarchy; the hierarchical content acquisition module is used for acquiring the display content corresponding to the display content type of the display hierarchy; the model image acquisition and display module 803 includes: the hierarchical content display unit is used for generating a display page corresponding to the display hierarchy according to the display content and the display image of the display hierarchy and displaying the display page corresponding to the display hierarchy.

Further, the city information display device based on digital twinning further comprises: the city data acquisition module is used for periodically acquiring city basic data corresponding to the three-dimensional city space; the city data statistics module is used for carrying out statistics on the city basic data to obtain display contents corresponding to the display content types;

And the statistical result storage module is used for storing the display content corresponding to each display content type. The city information display device based on digital twinning can execute the city information display method based on digital twinning provided by any embodiment of the disclosure, and has the corresponding functional modules and beneficial effects of executing the city information display method based on digital twinning.

In the technical scheme of the disclosure, the related processes of collecting, storing, using, processing, transmitting, providing, disclosing and the like of the personal information of the user accord with the regulations of related laws and regulations, and the public order colloquial is not violated.

According to embodiments of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium and a computer program object.

Fig. 9 shows a schematic area diagram of an example electronic device 900 that may be used to implement embodiments of the present disclosure. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular telephones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be exemplary only, and are not meant to limit implementations of the disclosure described and/or claimed herein.

As shown in fig. 9, the apparatus 900 includes a computing unit 901 that can perform various appropriate actions and processes according to a computer program stored in a Read Only Memory (ROM) 902 or a computer program loaded from a storage unit 908 into a Random Access Memory (RAM) 903. In the RAM 903, various programs and data required for the operation of the device 900 can also be stored. The computing unit 901, the ROM 902, and the RAM 903 are connected to each other by a bus 904. An input/output (I/O) interface 905 is also connected to the bus 904.

Various components in device 900 are connected to I/O interface 905, including: an input unit 906 such as a keyboard, a mouse, or the like; an output unit 907 such as various types of displays, speakers, and the like; a storage unit 908 such as a magnetic disk, an optical disk, or the like; and a communication unit 909 such as a network card, modem, wireless communication transceiver, or the like. The communication unit 909 allows the device 900 to exchange information/data with other devices through a computer network such as the internet and/or various telecommunications networks.

The computing unit 901 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of computing unit 901 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various specialized Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 901 performs the respective methods and processes described above, for example, a digital twin-based city information presentation method. For example, in some embodiments, the digital twinned based city information presentation method may be implemented as a computer software program tangibly embodied on a machine-readable medium, such as the storage unit 908. In some embodiments, part or all of the computer program may be loaded and/or installed onto the device 900 via the ROM 902 and/or the communication unit 909. When the computer program is loaded into the RAM 903 and executed by the computing unit 901, one or more steps of the digital twin-based city information presentation method described above may be performed. Alternatively, in other embodiments, the computing unit 901 may be configured to perform the digital twinning based city information presentation method by any other suitable means (e.g. by means of firmware).

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuit systems, field Programmable Gate Arrays (FPGAs), application Specific Integrated Circuits (ASICs), application specific standard objects (ASSPs), systems On Chip (SOCs), complex Programmable Logic Devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs, the one or more computer programs may be executed and/or interpreted on a programmable system including at least one programmable processor, which may be a special purpose or general-purpose programmable processor, that may receive data and instructions from, and transmit data and instructions to, a storage system, at least one input device, and at least one output device.

Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus such that the program code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or region diagram to be implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and pointing device (e.g., a mouse or trackball) by which a user can provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic input, speech input, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a background component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such background, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), wide Area Networks (WANs), blockchain networks, and the internet.

The computer system may include a client and a server. The client and server are typically remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also called a cloud computing server or a cloud host, and is a host product in a cloud computing service system, so that the defects of high management difficulty and weak service expansibility in the traditional physical hosts and VPS service are overcome. The server may also be a server of a distributed system or a server that incorporates a blockchain.

Artificial intelligence is the discipline of studying the process of making a computer mimic certain mental processes and intelligent behaviors (e.g., learning, reasoning, thinking, planning, etc.) of a person, both hardware-level and software-level techniques. Artificial intelligence hardware technologies generally include technologies such as sensors, dedicated artificial intelligence chips, cloud computing, distributed storage, big data processing, and the like; the artificial intelligent software technology mainly comprises a computer vision technology, a voice recognition technology, a natural language processing technology, a machine learning/deep learning technology, a big data processing technology, a knowledge graph technology and the like.

Cloud computing (cloud computing) refers to a technical system that a shared physical or virtual resource pool which is elastically extensible is accessed through a network, resources can comprise servers, operating systems, networks, software, applications, storage devices and the like, and resources can be deployed and managed in an on-demand and self-service mode. Through cloud computing technology, high-efficiency and powerful data processing capability can be provided for technical application such as artificial intelligence and blockchain, and model training.

It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps recited in the present disclosure may be performed in parallel, sequentially, or in a different order, provided that the desired results of the technical solutions provided by the present disclosure are achieved, and are not limited herein.

The above detailed description should not be taken as limiting the scope of the present disclosure. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present disclosure are intended to be included within the scope of the present disclosure.

Claims

1. A city information display method based on digital twinning comprises the following steps:

2. The method of claim 1, wherein the acquiring spatial information and real-time real city state information of the object to be displayed in the three-dimensional city space comprises:

acquiring an object to be displayed input by a user;

requesting spatial information of the object to be displayed in a three-dimensional city space and real-time real city state information related to the position of the object to be displayed from a digital twin map system;

And receiving the space information and the real-time real city state information fed back by the digital twin map system.

3. The method of claim 2, wherein the obtaining the object to be presented entered by the user comprises:

acquiring a target area input by the user and at least one concerned building in the target area;

wherein the space information includes boundary information of the target area in the three-dimensional city space and three-dimensional model size information and three-dimensional model position information of each building of interest in the three-dimensional city space; the real-time real city state information comprises real-time traffic information of adjacent roads and internal roads of the target area and real-time natural environment information associated with the target area; the camera acquisition parameters comprise camera acquisition parameters of a target area and camera acquisition parameters of each building concerned;

the image acquisition is carried out on the object to be displayed according to the camera acquisition parameters to obtain a display image of the object to be displayed under a target view angle, and the display image of the object to be displayed is displayed, and the method comprises the following steps:

and acquiring an image of the target area according to the camera acquisition parameters of the target area, and obtaining a display image of the target area under a target view angle corresponding to the camera acquisition parameters of the target area.

4. A method according to claim 3, further comprising:

receiving a display instruction of the concerned building;

acquiring an image of the concerned building according to the camera acquisition parameters of the concerned building to obtain a display image of the concerned building under a target view angle corresponding to the camera acquisition parameters of the concerned building;

a display image of the building of interest is displayed.

5. The method of claim 1, wherein the determining camera acquisition parameters of the object to be displayed according to the spatial information and the real-time real city status information comprises:

acquiring the display dimension of the three-dimensional city space;

and determining camera acquisition parameters of the object to be displayed according to the display dimension, the space information and the real-time real city state information.

6. The method of claim 1, wherein the determining camera acquisition parameters of the object to be displayed according to the spatial information and the real-time real city status information comprises:

inputting the space information and the real-time real city state information into a pre-trained parameter detection model to obtain camera acquisition parameters output by the parameter detection model;

The parameter detection model is obtained through training samples in advance, wherein the training samples comprise spatial information of sample objects, real city state information of the samples and camera acquisition parameters corresponding to sample model images under the optimal view angles.

7. The method of claim 1, further comprising:

acquiring a display level input by a user in an urban space display page;

and under the condition that the display level is an optional area level, acquiring the object to be displayed input by the user.

8. The method of claim 7, further comprising:

acquiring a display content type corresponding to the display level;

acquiring display content corresponding to the display content type of the display hierarchy;

the displaying the display image of the object to be displayed comprises the following steps:

and generating a display page corresponding to the display level according to the display content and the display image of the display level, and displaying the display page corresponding to the display level.

9. The method of claim 8, further comprising:

periodically acquiring city basic data corresponding to the three-dimensional city space;

counting the city basic data to obtain display contents corresponding to each display content type;

And storing the display content corresponding to each display content type.

10. A digital twinning-based city information display device, comprising:

and the model image acquisition and display module is used for acquiring images of the objects to be displayed according to the camera acquisition parameters to obtain display images of the objects to be displayed under a target view angle and displaying the display images of the objects to be displayed.

11. The apparatus of claim 10, wherein the real-time information acquisition module comprises:

the object to be displayed receiving unit is used for acquiring the object to be displayed input by the user;

the digital twin data request unit is used for requesting spatial information of the object to be displayed in the three-dimensional city space and real-time real city state information related to the position of the object to be displayed from the digital twin map system;

and the digital twin data receiving unit is used for receiving the space information and the real-time real city state information fed back by the digital twin map system.

12. The apparatus of claim 11, wherein the object to be displayed receiving unit comprises:

a target area receiving subunit, configured to obtain a target area input by the user and at least one building of interest in the target area; wherein the space information includes boundary information of the target area in the three-dimensional city space and three-dimensional model size information and three-dimensional model position information of each building of interest in the three-dimensional city space; the real-time real city state information comprises real-time traffic information of adjacent roads and internal roads of the target area and real-time natural environment information associated with the target area; the camera acquisition parameters comprise camera acquisition parameters of a target area and camera acquisition parameters of each building concerned;

the model image acquisition and display module comprises:

and the region image acquisition unit is used for acquiring images of the target region according to the camera acquisition parameters of the target region, obtaining a display image of the target region under a target view angle corresponding to the camera acquisition parameters of the target region, and displaying the display image of the target region.

13. The apparatus of claim 12, further comprising:

the display instruction receiving module is used for receiving the display instruction of the concerned building;

the building image acquisition module is used for acquiring images of the concerned building according to the camera acquisition parameters of the concerned building to obtain a display image of the concerned building under a target view angle corresponding to the camera acquisition parameters of the concerned building;

and the building image display module is used for displaying the display image of the concerned building.

14. The apparatus of claim 10, wherein the acquisition parameter determination module comprises:

the display dimension acquisition unit is used for acquiring the display dimension of the three-dimensional city space;

and the acquisition parameter detection unit is used for determining camera acquisition parameters of the object to be displayed according to the display dimension, the space information and the real-time real city state information.

15. The apparatus of claim 10, wherein the acquisition parameter determination module comprises:

the model detection unit is used for inputting the space information and the real-time real city state information into a pre-trained parameter detection model to obtain camera acquisition parameters output by the parameter detection model;

16. The apparatus of claim 10, further comprising:

the display level detection module is used for acquiring a display level input by a user in the urban space display page;

and the selectable region hierarchy display module is used for acquiring the object to be displayed, which is input by the user, under the condition that the display hierarchy is the selectable region hierarchy.

17. The apparatus of claim 16, further comprising:

the hierarchy type acquisition module is used for acquiring the display content type corresponding to the display hierarchy;

the hierarchical content acquisition module is used for acquiring the display content corresponding to the display content type of the display hierarchy;

the model image acquisition and display module comprises a model image acquisition and display module,

the hierarchical content display unit is used for generating a display page corresponding to the display hierarchy according to the display content and the display image of the display hierarchy and displaying the display page corresponding to the display hierarchy.

18. The apparatus of claim 17, further comprising:

The city data acquisition module is used for periodically acquiring city basic data corresponding to the three-dimensional city space;

the city data statistics module is used for carrying out statistics on the city basic data to obtain display contents corresponding to the display content types;

and the statistical result storage module is used for storing the display content corresponding to each display content type.

19. An electronic device, comprising:

at least one processor; and

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the digital twinning-based urban information presentation method of any of claims 1-9.

20. A non-transitory computer-readable storage medium storing computer instructions for causing the computer to perform the digital twinned based urban information presentation method according to any one of claims 1-9.

21. A computer program object comprising a computer program which, when executed by a processor, implements the digital twinning-based city information presentation method of any one of claims 1-9.