CIM basic platform-based urban information model management system and analysis and display method

Abstract

The invention discloses a city information model management system based on a CIM basic platform and an analysis and display method, provides an innovative city information management and display solution, takes the CIM basic platform as a core, and aims to construct a high-precision and dynamically-updated city three-dimensional information model management system through an integrated information technical means. The urban space structure, the function layout and the infrastructure state can be visually and interactively explored, so that construction and development of a smart city are promoted, and the intelligent level and the comprehensive efficiency of urban management are improved.

Description

Technical Field

[0001] The present application relates to the field of intelligent information management technology and information system integration, and more specifically, to an urban information model management system and an analysis and display method based on a CIM basic platform. Background Art

[0002] With the acceleration of urbanization, the City Information Model (CIM), as a new generation of urban informatization infrastructure, is gradually becoming an important tool for urban planning, construction and management; the CIM basic platform integrates massive spatiotemporal information data of cities in multiple dimensions, scales and phases to build a three-dimensional digital foundation for the city, providing strong support for smart urban management and refined planning.

[0003] The CIM platform in the existing technology still faces many challenges in data integration, visualization and functional application. On the one hand, the effective integration and unified management of multi-source heterogeneous data are the key to achieving efficient operation of the CIM platform, but there are still technical barriers to the connection between traditional data formats and CIM data. On the other hand, the problem of integrated display of GIS and various three-dimensional data needs to be solved urgently, and a more intuitive and comprehensive view of urban information has not yet been provided. In addition, the functions of the CIM platform in assisting daily work are not yet perfect, such as the lack of convenient GIS function support, which limits its wide application in urban planning, construction and management.

[0004] Therefore, it is of great practical significance and application value to develop an urban information model management system and analysis and display method based on the CIM basic platform to overcome the shortcomings of existing technologies and improve the data processing capabilities, visualization effects and practicality of the CIM platform. Summary of the invention

[0005] The purpose of the embodiment of the present invention is to provide an urban information model management system and analysis and display method based on the CIM basic platform, which can effectively integrate multi-source data, analyze urban model information, realize visual management of city-level data, and provide rich functional modules to support urban planning, management and decision-making.

[0006] To achieve the above-mentioned purpose, the embodiment of the present invention provides a city information model management system and analysis and display method based on the CIM basic platform, including a data integration module, a city map module, a data management module, an interface management module, a model application module, a city theme module, a holographic city module and a system management module; wherein: Data integration module, used to collect and manage various types of urban data, including but not limited to building data, terrain data, traffic data, water system data, vegetation data, pipeline data, urban component data, etc.; this module supports parsing and conversion of data in different formats, forming a unified data organization form, and storing it in the CIM database; The city map module is used to realize the visualization of city-level data and form a map of city information model data; this module supports data layer service management configuration, data attribute association, transparency setting, data overlay display, layer split screen comparison and other functions, and can intuitively view and analyze city data; The data management module is used to manage the data in the CIM database, including data entry application, data entry review, layer list management, layer attribute management and other functions; this module also supports data editing, adding, deleting and querying operations to ensure data integrity and consistency; The interface management module provides API, service interface and secondary development interface, supports data resource services such as data query and information sharing, and can provide support for special application services including but not limited to planning compilation, comprehensive supervision, and basic general services such as spatial analysis and statistical reports. The module also supports third-party systems to call platform functions through API to achieve data and service sharing and integration. Model application module supports the integration of application services provided by related business systems into the platform, providing a platform support for external sharing of various application services; this module includes functions such as application display and application list, providing convenience for related thematic applications; The city theme module can carry out the production and research of thematic maps such as urban information layout and use control based on urban information, meet the business needs of rapid mapping and provide services for administrative approval and urban information monitoring and supervision; The holographic city module provides a three-dimensional scene display of the city, including resource catalog, spatial analysis, simulation, city physical examination, city lifeline and other functions; you can enter the corresponding functional module for detailed operation and analysis; The system management module is used to manage system menus, system users, system roles, etc., set user access rights, and ensure system security. Users must enter their user account, password, and verification code to log in to the system. The system grants corresponding access rights to users based on their roles. Unauthorized users cannot access corresponding modules. As an improvement of the above-mentioned scheme, the urban information model management system and analysis and display method based on the CIM basic platform also include security. The GIS information stored in the CIM platform is mostly sensitive information. The system ensures system and data security policies by setting system security policies for the operating system and database. In the application program, data security is ensured by setting permissions for each sub-module of the system.

[0007] As an improvement of the above solution, the city information model management system and analysis and display method based on the CIM basic platform also include reliability and stability to ensure that the system operates reliably and stably within the specified number of users.

[0008] As an improvement of the above solution, the city information model management system and analysis and display method based on the CIM basic platform also include supportability, including but not limited to host environment, network environment, database, configuration requirements, etc.

[0009] Compared with the prior art, the city information model management system and analysis and display method based on the CIM basic platform of the present invention have the following beneficial effects: 1. The present invention can effectively integrate various types of urban data through the data integration module to form a unified data organization form, providing a basis for subsequent data management and visualization display.

[0010] 2. The city map module provides rich functions, supporting data layer service management configuration, data attribute association, transparency setting, data overlay display, layer split-screen comparison, etc., allowing users to intuitively view and analyze city data, improving the readability and usability of the data.

[0011] 3. The model application module and the city theme module provide rich functions, including model deduction, model warehouse, thematic map production, etc., to meet the needs of different users.

[0012] 4. The system ensures data security by setting system security policies for the operating system and database, and setting permissions for each sub-module of the system; at the same time, the system can operate reliably and stably within the specified number of users, ensuring the reliability and stability of the system.

[0013] 5. The platform supports a variety of different needs, including host environment, network environment, database, configuration requirements, etc., and the interface style is unified, simple and beautiful, and the function menu is reasonably arranged to ensure that users can quickly find the required functions, thereby improving the system's availability and ease of use.

[0014] 6. The platform has the characteristics of functional modularity, which can meet the ever-changing iterative upgrade needs of users, ensuring that the system can be continuously improved and expanded after it is put into use to adapt to future development needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the following is a brief introduction to the drawings required for describing the embodiment: Figure 1 Schematic diagram of the overall structure of the system module in the embodiment; Figure 2 Schematic diagram of the composition of the data integration module in the embodiment.

[0016] Figure 3 Schematic diagram of the composition of the city map module in the embodiment.

[0017] Figure 4 Schematic diagram of the composition of the data management module in the embodiment.

[0018] Figure 5 Schematic diagram of the composition of the interface management module in the embodiment.

[0019] Figure 6 Schematic diagram of the composition of the model application module in the embodiment.

[0020] Figure 7 It is a schematic diagram of the composition of the city theme module in the embodiment.

[0021] Figure 8 Schematic diagram of the composition of the holographic city module in the embodiment.

[0022] Fig. 9 It is a schematic diagram of the composition of the resource directory of the holographic city module in the embodiment.

[0023] Fig.10 Schematic diagram of the composition of the toolbar of the holographic city module in the embodiment.

[0024] Fig.11 Schematic diagram of the composition of the toolbox of the holographic city module toolbar in the embodiment.

[0025] Fig.12 Schematic diagram of the composition of the system management module in the embodiment. DETAILED DESCRIPTION

[0026] 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: See also Figure 1 , Figure 1 The present invention provides a schematic diagram of a city information model management system and an analysis and display method based on a CIM basic platform, including a data integration module, a city map module, a data management module, an interface management module, a model application module, a city theme module, a holographic city module and a system management module; wherein: The data integration module is responsible for integrating data from different sources and formats to ensure data uniformity and consistency; The city map module provides functions such as display and analysis of urban areas; The data management module provides functions such as data entry application, data entry review, layer list, layer management, and layer properties; The interface management module provides functions such as interface display and interface list, and contains interfaces in various technical forms, including API call interface, service interface and secondary development interface; Model application module, which provides functions such as application display and application list, and connects application services provided by related business systems to the platform; The city theme module provides theme display, theme list and other functions; Holographic city module, providing three-dimensional scene display function of the city; The system management module is responsible for system management and supports the creation and management of users, roles, menus, and the allocation and control of permissions.

[0027] Preferably, the city map module in the embodiment of the present invention not only supports the display of two-dimensional maps, but also supports the display of three-dimensional maps; through the three-dimensional map, the spatial layout of the city and the distribution of underground buildings can be observed.

[0028] See also Figure 2 , Figure 2 It is a schematic diagram of the composition of a data integration module in a city information model management system and analysis and display method based on a CIM basic platform provided by an embodiment of the present invention; the module is used to collect and manage various types of city data, including but not limited to building data, terrain data, traffic data, water system data, vegetation data, pipeline data, city component data, etc.; the data integration module supports parsing and conversion of data in different formats to form a unified data organization form and store it in a CIM database; the specific description is as follows: Data collection and analysis: urban data is collected through multiple channels. The data comes from different sources, including but not limited to government departments, third-party data providers, IoT devices and the public. Specifically, building data can be collected through BIM technology from the planning and approval of engineering construction projects, project construction approval and project completion acceptance. Terrain data can be obtained through oblique photogrammetry technology combined with local data collected by large aircraft, drones and other equipment. Traffic data and water system data can be collected through field measurements and remote sensing technology. Vegetation data can be obtained through satellite images and ground surveys. Pipeline data and urban component data can be collected through underground detection and on-site investigations. Attribute data can be obtained through the planning and approval documents of relevant departments to ensure the comprehensiveness and accuracy of the data. The data integration module supports the analysis of data in different formats, including but not limited to GIS data, CAD data, BIM data, image data, text data, etc. The analysis process includes data format conversion, coordinate system conversion, data cleaning and standardization to ensure data consistency and availability. Data conversion and fusion: the parsed data needs to be further converted and fused to form a unified data organization form; through predefined data conversion rules and algorithms, data from different sources and formats are converted into data formats that meet CIM standards; the converted data is formed into a unified urban information model through data fusion technology, including but not limited to spatial superposition, attribute association, etc.; Data storage management is used to store the converted and integrated data in the CIM database. The CIM database adopts a separate storage architecture to support the storage and efficient access of large-scale data. During the data storage process, the data integration module is responsible for data version management and metadata management to ensure data integrity and traceability. The data integration module supports real-time update and synchronization of data. See also Figure 3 , Figure 3 It is a schematic diagram of the composition of a city map module in a city information model management system and analysis and display method based on a CIM basic platform provided by an embodiment of the present invention; the module includes functions such as data overlay, layer search, layer drawing, layer underground, layer distance measurement, layer area measurement, and layer multi-screen analysis; the city map module can display, layout, and draw urban areas, and display data by checking the relevant data options under the area list; the specific description is as follows: The data overlay allows different types of data to be overlaid and displayed on the city map by checking the relevant data options under the area list; these data include but are not limited to building data, terrain data, traffic data, water system data, vegetation data, pipeline data, urban component data, etc.; the data overlay function supports the overlay of multiple data formats, including but not limited to GIS data, BIM data, image data, etc.; The layer search provides the function of finding and locating a specific area or place; users can search by entering an address, place name or keyword; the search results will be displayed on the map, and users can click to jump to the area for detailed regional analysis; The layer drawing function allows icons to be drawn and annotated on the city map. This function can be used to draw building outlines, road markings, area divisions, etc., so as to conduct detailed map analysis and planning. The layer drawing function supports a variety of drawing tools and styles, including points, lines, polygons, circles, etc., and the appropriate drawing method can be selected according to needs. The underground layer provides the ability to observe the layout of underground buildings; this function can be used to view the layout of underground drainage, water supply, natural gas and other pipelines; the underground layer function supports the display of a variety of underground data, including but not limited to underground pipe network data, underground facility data, etc., which can understand the infrastructure conditions of the city's underground; The layer distance measurement allows distance measurement on the map. You can click two points on the map to measure the straight-line distance between the two points. The distance measurement results will be displayed on the map in real time, and the measurement data can be saved and exported. The layer area measurement allows area measurement on the map; the area of ​​a specific area can be measured by drawing a polygon; the area measurement result will be displayed on the map in real time, and it supports saving and exporting measurement data; The layer multi-screen analysis supports the simultaneous display and analysis of data on multiple screens. When one screen is not sufficient to display all the data, the data can be distributed on multiple screens for analysis. The layer multi-screen analysis function supports the simultaneous display and linkage operation of data. See also Figure 4 , Figure 4 It is a composition diagram of a data management module in a city information model management system and analysis and display method based on a CIM basic platform provided by an embodiment of the present invention; the module includes functions such as data entry application, data entry review, layer list, layer management, layer properties, etc.; the data management module applies for data entry, checks the data entry review status, manages the layer details of the list on the city map page, and implements the functions of editing, adding subordinates, and deleting data; the specific implementation method of the data management module will be described in detail below; the specific description is as follows: The data entry application is used to submit an application for data entry. After logging into the system, click the data management module to enter the data entry application page. On this page, click the "Add" button to fill in the data information to be applied for entry, including but not limited to data type, data source, data format, etc. After completing the filling, you can confirm and submit the data entry application to enter the review stage. The data entry review is used to view and manage submitted data entry applications; enter the data management module, click the "data entry review" button to view all submitted entry application data; the reviewer can click the "details" button to view the details of a certain data and perform data entry review operations; the review result data includes but is not limited to the review time, reviewer, review status, review opinion, etc.; the reviewer decides whether to approve the data entry based on the review results; The layer list is used to display and manage layer data; enter the data management module, click the "layer list" button to view all the layer data stored in the library; click the "details" button to view the detailed information of a layer data, including but not limited to the layer name, layer type, data type, label, description, whether hidden, department, public, parent layer, 3D service address, 2D service address, content, custom configuration, search field, attachments, etc.; The layer management is used to edit and manage the layer data; enter the data management module, click the "layer management" button, you can view all the layer data stored in the library; click the "details" button, you can view the detailed information of a layer data, the content is the same as the detailed information of the layer data in the layer list; click the "operation" button, you can perform operations including but not limited to editing, adding subordinates, deleting, etc. The layer properties are used to view and manage the attribute information of the layer data; enter the data management module, click the "Layer Properties" button to view all the layer attribute data stored in the database; click the "Details" button to view the detailed information of a layer attribute data, including the attribute name, attribute type, attribute value, etc.; click the "Modify" button to modify the layer attribute data; click the "Add" button to add layer attribute data; click the "Delete" button to delete the layer attribute data; See also Figure 5 , Figure 5 It is a composition diagram of an interface management module in an urban information model management system and an analysis and display method based on a CIM basic platform provided by an embodiment of the present invention; the module includes an interface display and an interface list; the interface management module provides an API, a service interface and a secondary development interface for secondary development, and realizes data resource services such as data query and information sharing, special application services such as planning compilation and comprehensive supervision, and basic general services such as spatial analysis and statistical reports through various technical forms such as API calls and service interfaces; the specific description is as follows: The interface display is used to display various API interfaces and service interfaces provided by the system; enter the interface management module, click the "Interface Display" button to view all interface information provided by the system; the interface display page includes but is not limited to the name, URL address, request method, request type, introduction, detailed introduction, request parameters, response parameters and other information; the interface display page can be used to understand the function and usage of each interface, and conduct secondary development and integration; Specifically, API call means allowing the API interface provided by the system to be called to realize functions including but not limited to data query, information sharing, etc.; obtaining detailed information of the API interface through the interface display page, and making API calls according to the interface documentation; API calls include but are not limited to the setting of request parameters, the selection of request methods, the concatenation of request URLs, etc.; after a successful call, the system will return the corresponding data results, which can be further processed and analyzed based on the returned results; Specifically, the service interface refers to the service interface provided by the system that allows the realization of special application services including but not limited to planning and comprehensive supervision; the service interface is based on Web service technology and supports but not limited to protocols such as SOAP and RESTful; detailed information of the service interface can be obtained through the interface display page, and the service call can be made according to the interface document; the service call includes but is not limited to the setting of request parameters, the selection of request method, the splicing of request URLs and other steps; after the call is successful, the system will return the corresponding service result, which can be further processed and analyzed based on the returned result; Specifically, secondary development interface refers to the ability to implement basic general services including but not limited to spatial analysis, statistical reports, etc. by calling the secondary development interface provided by the system; the secondary development interface is based on but not limited to SDK or API, and provides but not limited to development tools and document support; detailed information of the secondary development interface can be obtained through the interface display page, and development and integration can be carried out according to the interface document; the secondary development interface supports multiple programming languages ​​and development environments, and can be customized for development and application; The interface list is used to manage various API interfaces and service interfaces provided by the system; enter the interface management module and click the "Interface List" button to view and edit all interface information provided by the system; the editing page includes but is not limited to the name, type, parent interface, introduction, detailed introduction, whether to display, cover image, request URL address, whether external interface, request method, content type, request parameters, response parameters and other information; Furthermore, the interface display page also integrates an interface test function. Click the test button on the interface display page to enter the interface test page. The page contains information such as the request address, request parameters, request headers, and request content. This information can be pre-edited in the editing page of the interface list. Regardless of whether pre-editing is performed, these contents can be modified directly in the test page. These modifications are temporary modifications and will not affect subsequent tests. The test page contains a send button. After clicking the button, the system will simulate a call to the interface and return response parameters. Further processing and analysis can be performed based on the returned response parameter results.

[0029] See also Figure 6 , Figure 6 It is a schematic diagram of the composition of a model application module in a city information model management system and an analysis and display method based on a CIM basic platform provided by an embodiment of the present invention; the module includes application display and application list; the model application module supports the application services provided by related business systems to be connected to the platform in accordance with the unified interface specification, provides a platform support for external sharing of various application services, and provides convenience for related special applications; the specific description is as follows: The application display is used to display various application services that have been connected to the system, and all application services that have been connected to the system can be viewed; the application display page may include but is not limited to information such as name, type, region, whether it is an external application, website, detailed introduction, cover image, etc.; the application display page may be used to understand the functions and usage methods of each application service, and to access and call the application; The application list is used to manage and view all application services that have been connected to the system, and can view all registered application service information; the application editing page includes but is not limited to name, type, region, whether it is an external application, description, website, detailed introduction, cover image and other information; the application list page can be used to perform but is not limited to viewing, editing, deleting and other operations on application services; the application list function also supports the classification management of application services, and can be filtered according to but not limited to application name, type, region and other conditions; See also Figure 7 , Figure 7 It is a schematic diagram of the composition of a city theme module in a city information model management system and analysis and display method based on a CIM basic platform provided by an embodiment of the present invention; the module includes theme display and theme list; the city theme module is based on the city information model, gives full play to the role of the existing city information model "one map" data, supports the development of but not limited to the production and research of thematic maps such as city information layout and use control, realizes the business needs of rapid mapping and output, and provides services for but not limited to administrative approval, city information monitoring and supervision, etc.; the specific description is as follows: The thematic display is used to display the city thematic maps that have been produced in the system; the thematic display page includes but is not limited to information such as name, description, type, included layers, cover map, creation time, update time, etc.; the detailed information of each thematic map can be learned through the thematic display page, and the viewing and analysis of the thematic maps can be performed but not limited to; The thematic list is used to manage and view all the city thematic maps that have been produced in the system; the thematic list page includes but is not limited to information such as name, description, type, included layers, included base map, custom ground, initial scope, whether it is a public theme, cover map, creation time, update time, etc.; the thematic list page can be used to perform operations such as viewing, editing, and deleting thematic maps, but not limited to; the thematic list function supports the classification management of thematic maps, and can be filtered according to conditions such as but not limited to thematic name and type; See also Figure 8 , Figure 8It is a schematic diagram of the composition of a holographic city module in a city information model management system and an analysis and display method based on a CIM basic platform provided by an embodiment of the present invention; the module includes functions such as resource directory, spatial analysis, simulation, city physical examination, and city lifeline; the holographic city module displays the overall picture of the city through a three-dimensional scene, and provides multi-dimensional city information management and analysis tools; the holographic city module and the city map module can both display and analyze city information models, but the two have different focuses in display and analysis. The city map module pays more attention to versatility and basicity, and its default scene covers the world, providing basic display and analysis functions, which is suitable for macro display and analysis at the large scene level; the holographic city module is more focused on refinement and advancement, and its default scene focuses on a specific city, providing more in-depth and detailed display and analysis functions, and is more suitable for micro display and analysis at the building and model levels; the specific description is as follows: The resource directory is used to display and manage various resources in the city information model; click the resource directory icon to enter the resource directory function module; the page will display the resource directory operation interface, the directory is divided into groups such as city body, city components, underground space, thematic data, etc., each group contains its own resource type; click the resource type icon in the directory, the page will display the layer list of the resource type in the form of a tree; check the layer, the corresponding layer content will be displayed on the interface; For details, see Fig. 9 , Fig. 9 It is a composition diagram of a resource directory of a holographic city module in an urban information model management system and an analysis and display method based on a CIM basic platform provided by an embodiment of the present invention; the city subject includes subcategories such as building models, municipal models, public service models, road traffic models, earthquake prevention and disaster reduction models, etc., the city components include subcategories such as manhole covers, street lights, billboards, fire hydrants, and garden landscapes, the underground space includes subcategories such as key spaces, underground pipe networks, and underground pipe galleries, and the thematic data includes subcategories such as mobile phone signaling, population distribution, traffic annual reports, and public toilet projects; The spatial analysis is used to analyze and process urban spatial data; click the spatial analysis icon to enter the spatial analysis function module; the page will display the spatial analysis operation interface, including but not limited to planning analysis, landscape analysis, building analysis, municipal analysis, carbon emission analysis and other functions; click the icon in the directory to activate the corresponding function and perform detailed spatial analysis operations; Furthermore, the architectural analysis function of the spatial analysis of the holographic city module also includes two parts: architectural analysis options and architectural analysis results; among them, Building analysis options include selecting layers, drawing land ranges, area fields, floor fields, floor height fields, building height fields, etc. The building analysis results include building base area, land area, building density, total building area, building volume ratio, etc. Building density refers to the ratio of the total base area of ​​buildings to the occupied land area within a certain range, that is, the coverage rate of buildings; the building density index can reflect the vacant land rate and building density within a certain land use range; The building volume ratio refers to the ratio of the total ground building area to the occupied land area of ​​a community, that is, the gross density of the building area; the volume ratio is an important indicator to measure the intensity of construction land use. The lower the volume ratio, the higher the comfort of residents, and vice versa. After entering the building analysis interface, you first need to select the building layer to be analyzed. Click Select Layer, and a drop-down list will pop up. The list contains all currently activated layers that can be used for building analysis. Click the layer to complete the selection; secondly, according to the actual conditions of the attributes contained in the selected layer, fill in the area field, floor field, floor height field, building height field and other contents of the layer. The area field is required. After filling in the floor field, the floor height field and building height field can be left blank, and vice versa; finally, draw the land use range, click the Draw button, click the left mouse button on the map to draw a polygon, and double-click the left mouse button to end the drawing to form the land use range; the system will calculate the analysis results such as building base area, land area, building density, total building area, and building volume ratio based on the above options; The building base area S is calculated as follows: , where P i is the feature set of the selected layer, S i For element P i The corresponding area is defined by the area field of the feature. P' is the feature drawn by the function of drawing the land use range. Select P i The sum of the areas corresponding to the elements i that intersect with P' on the ground is the building base area S; The land area S' is the area corresponding to the element P' drawn by the land range drawing function; The building density ρ is calculated as follows: ; Where S is the building base area, S' is the land area; The total building area S'' is calculated as follows: ; Among them, S i ,i,P i , P' is defined as above, f i For element P i The corresponding number of floors is defined by the floor field of the feature. When the floor field does not exist, and the floor height field and building height field exist, the number of floors f i The calculation formula is changed to: Among them, h i For element P i The corresponding building height is defined by the building height field of the feature, P' i For element P i The corresponding layer height is defined by the layer height field of the feature; The building volume ratio R is calculated as follows: ; Among them, S' is the land area, S'' is the total building area; The simulation is used to simulate and emulate the urban environment; click the simulation icon to enter the simulation function module; the simulation operation interface will be displayed on the left side of the page, including but not limited to weather simulation, traffic simulation, lighting simulation, city roaming and other functions; click the icon in the directory to activate the corresponding function and perform detailed simulation operations; The city checkup is used to evaluate and monitor the health status of the city. Click the city checkup icon to enter the city checkup function module. The page will display the city checkup operation interface, including functions such as ecological livability, health and comfort, safety and resilience, convenient transportation, style and features, cleanliness and order, diversity and inclusiveness, and innovation and vitality. Click the icons in the catalog to activate the corresponding functions and perform detailed city checkup operations. The city lifeline is used to manage and monitor urban infrastructure; click the city lifeline icon to enter the city lifeline function module; the page will display the city lifeline information in the form of charts, including but not limited to lifeline overview, governance status, monitoring overview, alarm events, social resources and other functions; click the icon in the directory to activate the corresponding function and perform detailed city lifeline operations; For further information, see Fig.10 , Fig.10 It is a schematic diagram of the composition of the toolbar of the holographic city module in the urban information model management system and analysis and display method based on the CIM basic platform provided by an embodiment of the present invention; the holographic city module also has a toolbar, including but not limited to search, legend, base map, layer, roaming editing, roaming display, underground, weather, lighting, multi-screen analysis, slides, BIM browsing, toolbox (including but not limited to distance measurement, area measurement, profile, cutting, viewshed analysis) and other functions; the specific description is as follows: The search function allows to quickly find a specific place or object in the holographic city module; click the search icon in the toolbar to open the search interface; enter, including but not limited to, addresses, place names or keywords in the search box to search; the search results will be displayed on the map, and users can click to jump to the place for detailed regional analysis; The legend function is used to display the symbols and color meanings of different layers on the map; click the legend icon on the toolbar to open the legend interface; the legend interface will display the symbols and color descriptions of all layers on the current map to help users understand various information on the map; preferably, the legend function supports the display and hiding of custom legends, and you can choose to display or hide the legend of a specific layer as needed; The basemap function allows switching the basemap of the holographic city module; click the basemap icon in the toolbar to open the basemap interface; the basemap interface displays a list of optional basemaps of the platform, including but not limited to satellite images, electronic maps, topographic maps, etc.; click the basemap layer in the basemap interface to switch the basemap of the scene to this layer; it supports the overlay and switching of multiple basemaps, and can be observed and analyzed from different perspectives; The layer function is used to manage and control the layer display in the holographic city module; click the layer icon on the toolbar to open the layer interface; the layer interface lists the layers loaded in the scene, and click the list display icon to display or hide the layer in the interface; preferably, the layer function supports the classification management and sorting of layers, and the display order and visibility of the layers can be adjusted as needed; The roaming editing function allows editing of the roaming path in the holographic city module; click the roaming editing icon on the toolbar to open the roaming editing interface; the interface lists the roaming nodes of the current scene, and the roaming nodes of the scene can be edited in the interface, including but not limited to adding, deleting, adjusting node positions, etc. Specifically, the tour editing function interface includes importing tours, exporting tours, adding tour nodes, clearing tours, playing tours, tour play mode, tour node duration, and tour node list. The tour nodes include a content box and an operation bar; among them: The roaming playback mode includes two options: automatic playback and manual playback. In the automatic playback mode, you only need to click the play roaming function once to play all the roaming nodes from the beginning to the end in the order of the roaming nodes. In the manual playback mode, you only need to click the play roaming function once to play one roaming node from the beginning to the end in the order of the roaming nodes. The roaming node content box includes attribute information such as the coordinate system, longitude, latitude, altitude, duration, lens direction and lens tilt of the roaming node; preferably, the duration indicates the time required for the lens to move from the previous roaming node to the current roaming node; the lens direction indicates the horizontal orientation angle of the lens. When the lens faces due north, the lens direction value is 0 degrees. As the lens rotates clockwise, the lens direction value increases, and the angle is always standardized between 0 and 360 degrees; the lens tilt indicates the inclination of the lens to the ground projected downward from the lens position. When the lens is vertically downward toward the ground, the lens tilt value is 0 degrees, and when the lens is parallel to the ground, the lens tilt value is 90 degrees; The navigation node operation bar includes operations such as positioning, updating, inserting above, inserting below, and deleting the navigation node; preferably, positioning means switching the current lens direction to the lens direction of the navigation node; updating means replacing the lens direction of the navigation node with the current lens direction; inserting above and inserting below mean using the current lens direction as the navigation node and inserting it above or below the navigation node; The roaming display function allows the roaming path in the holographic city module to be played; click the roaming display icon on the toolbar, and the roaming display icon will appear on the interface; click the icon, and the interface will play the roaming path according to the roaming node; support multiple playback modes, including automatic playback, manual playback and loop playback; The underground function allows viewing the underground space information in the holographic city module; click the underground icon in the toolbar to open the underground interface; the scene ground will be transparent, and the underground layer can be seen, including but not limited to the layout of drainage, water supply, natural gas and other pipelines; the operation interface can change the transparency of the ground, and the underground space can be observed and analyzed; The weather function allows the simulation of real weather effects in the holographic city module; click the weather icon in the toolbar to open the weather interface; you can select weather including but not limited to sunny, cloudy, rainy, snowy, foggy, etc. in the interface, and the scene will simulate the corresponding weather effect according to the selection; The lighting function allows the time in the holographic city module to be adjusted to simulate real lighting. Click the lighting icon in the toolbar to open the lighting interface. The date and time can be changed in the interface, and the scene will simulate the corresponding lighting effect according to the selected time. The multi-screen analysis function allows data to be displayed and analyzed on multiple screens at the same time; click the multi-screen analysis icon on the toolbar to open the multi-screen analysis interface; the interface will display the layout and data distribution of multiple screens, and the screen layout and data display can be adjusted as needed; the multi-screen analysis function supports synchronous display and linkage operation of data. If you perform operations such as translation, rotation, and zooming of a scene on one of the screen interfaces, the scenes on the other screen interfaces will be operated synchronously, so that the viewing angles of all screen interfaces are always consistent; The slideshow function allows playing slideshows in the holographic city module; click the slideshow icon on the toolbar to open the slideshow interface; the interface will list the preset scene slideshows, click the slideshow, the scene will jump to the slideshow position, and load the corresponding layer; The BIM browsing function allows you to view the BIM information in the holographic city module; click the building browsing icon on the toolbar to open the building browsing interface; select the building you want to view at the top of the interface, and the structure of the BIM can be displayed by level (floor), field and category; preferably, the BIM data source is divided into multiple sources, including but not limited to BIM for project planning and approval, BIM for project construction approval, BIM for project completion acceptance, BIM designed by each engineering construction unit due to construction needs, and BIM remodeling data when necessary; The toolbox function includes a variety of practical tools for measurement and analysis in the holographic city module. Click the toolbox icon on the toolbar to open the toolbox interface. The toolbox includes but is not limited to distance measurement, area measurement, profile, sectioning, viewshed analysis and other functions. Click the corresponding tool icon to activate the corresponding tool for operation. Specifically, See also Fig.11 , Fig.11 It is a schematic diagram of the composition of the toolbox of the toolbar of the holographic city module in the city information model management system and analysis and display method based on the CIM basic platform provided by an embodiment of the present invention; the toolbar of the holographic city module also has a toolbox function, including distance measurement, area measurement, profile, sectioning, viewshed analysis and other functions; the specific description is as follows: The distance measurement function allows the straight-line distance between two points to be measured in the holographic city module; click the toolbox icon in the toolbar and select the distance measurement function to open the distance measurement interface; click the starting point and the end point on the map with the mouse, and the system will automatically calculate and display the straight-line distance between the two points, and the distance measurement result will be displayed on the map in real time; The area measurement function allows you to measure the area of ​​a specific area in the holographic city module. Click the toolbox icon in the toolbar and select the area measurement function to open the area measurement interface. Click the left mouse button to draw a polygon on the map, and double-click the left mouse button to end the drawing. The system will automatically calculate and display the area of ​​the area, and the area measurement result will be displayed on the map in real time. The profile function allows the generation of a profile in the holographic city module; click the toolbox icon on the toolbar and select the profile function to open the profile interface; click Create Profile, click the left mouse button on the map to draw the line segment to be measured, and finally double-click the left mouse button to end the drawing; the system will generate a profile based on the objects (ground, buildings) that the line segment passes through, and display the elevation information in the interface; The sectioning function allows users to section objects in the scene in the holographic city module; click the toolbox icon in the toolbar and select the sectioning function to open the sectioning interface; click New Sectioning, select the surface to be sectioned in the map with the mouse, and finally click the mouse to end the selection; the system will section the objects (ground, buildings) in the scene according to the sectioning surface, and display the sectioning effect in the interface, and the scene content on one side of the sectioning surface will be hidden; The sightshed analysis function allows the sightshed analysis to be performed in the holographic city module; click the toolbox icon in the toolbar and select the sightshed analysis function to open the sightshed analysis interface; click New Analysis, select the initial point in the map by clicking once with the mouse, select the target point by clicking the mouse again, and double-click the last target point with the mouse to confirm the point and end the selection; the system will generate sightshed segments based on the starting point and the target point, and display the sightshed analysis results in the interface; the analysis results are segments from the initial point to each target point, and the segments use colors to distinguish whether the sight is blocked, green for unblocked and red for blocked; See also Fig.12 , Fig.12 The present invention provides a schematic diagram of the composition of a system management module in a city information model management system and analysis and display method based on a CIM basic platform according to an embodiment of the present invention; the module includes functions such as menu management, user management, and role management; wherein, The menu management is used to manage the menu information in the system; the menu structure is a hierarchical structure, a menu can contain 0 or more submenus, a menu has only 0 or 1 parent menu; menu information includes but is not limited to menu type, menu name, access path, menu icon, sorting and other contents; menu management includes adding, deleting, editing, adding subordinates; a menu is a module or function of the system; The user management is used to manage user information in the system; user information includes but is not limited to user account, user name, work number, position, role, department, avatar, birthday, gender, email, mobile phone number, landline, etc.; user management includes functions such as adding, deleting, editing, changing passwords, importing, exporting, and querying; specifically, the search function supports searching by account, name, gender, mobile phone number, and user status; The role management is used to manage the role information in the system; the role information includes but is not limited to the role name, role code, remarks and the like; the role management includes the functions of adding, deleting, editing, users, authorization and the like; specifically, the user function supports batch adding roles for users in the system; preferably, using the user function to add roles for users, users can be directly added under the current function; specifically, the authorization function is used to add menu access rights for a specified role, and the permission configuration interface lists the system menus in a hierarchical structure, and each menu is accompanied by a check box. Clicking the check box can check or uncheck the specified menu. When a menu is in a checked state, the user has access rights to the menu, but when the menu is in an unchecked state, the user has no access rights to the menu; In summary, the present invention realizes the integration, efficient management and multi-dimensional display of urban data by constructing an urban information model management system and an analysis and display method based on the CIM basic platform; through the collaborative work of the data integration module, the city map module, the data management module, the interface management module, the model application module, the city subject module, the holographic city module and the system management module; the present invention provides an efficient, flexible and feature-rich urban information model management system and display method, which can meet the various needs of urban planning, construction and management; through the resource directory, spatial analysis, simulation, urban physical examination, urban lifeline, toolbar and other functional modules, the present invention realizes the detailed display and in-depth analysis of urban information, provides a scientific basis for urban management and decision-making, and promotes the informatization and intelligent construction of smart cities.

Claims

1. Urban information model management system and analysis and display method based on CIM basic platform, characterized in that: The system includes a data integration module, a city map module, a data management module, an interface management module, a model application module, a city topic module, a holographic city module and a system management module.

2. The urban information model management system and analysis and display method based on the CIM basic platform according to claim 1 is characterized in that: The data integration module includes a data preprocessing submodule, which cleans, converts and formats the data before it is stored in the database; The data integration module includes data collection and analysis, data conversion and fusion, and data storage and management functions; The data collected and managed by the data integration module include: building data, terrain data, traffic data, water system data, vegetation data, pipeline data and urban component data; And will be stored in the CIM database.

3. The urban information model management system and analysis and display method based on the CIM basic platform according to claim 1 is characterized in that: The city map module has the functions of layer drawing, observing underground building layout, overlaying layers to draw charts, searching and finding, map zooming, map measurement, query positioning, sunshine simulation, field of view simulation, layer distance measurement and layer area measurement and multi-screen analysis.

4. The urban information model management system and analysis and display method based on the CIM basic platform according to claim 1 is characterized in that: The data management module includes a data entry application submodule, a data entry review submodule, a layer list submodule, a layer management submodule and a layer attribute submodule.

5. The urban information model management system and analysis and display method based on the CIM basic platform according to claim 1 is characterized in that: The interface management module includes API interface, service interface and secondary development interface; it has the functions of data query, information sharing, planning, comprehensive supervision, spatial analysis and statistical reporting.

6. The urban information model management system and analysis and display method based on the CIM basic platform according to claim 1 is characterized in that: The model application module supports the application services provided by the system, follows the unified interface specifications to access the platform, provides platform support for external sharing of various application services, supports application display and application list functions, the application display function is used to display relevant business system information, and the application list function is used to store and display model data.

7. The urban information model management system and analysis and display method based on the CIM basic platform according to claim 1 is characterized in that: The city thematic module, based on the city information model data, conducts research on the production of thematic maps such as urban information layout and use control, and realizes mapping and output, including a thematic display submodule and a thematic list submodule, which are used to display and manage city thematic data.

8. The urban information model management system and analysis and display method based on the CIM basic platform according to claim 1 is characterized in that: The holographic city module includes resource catalog, spatial analysis, simulation, city experience, city lifeline and toolbar functions; the spatial analysis includes two parts: building analysis options and building analysis results; Building analysis options include selecting layers, drawing land extents, area fields, floor fields, floor height fields, and building height field contents; The building analysis results include the building base area S, land area S', building density ρ, total building area S'' and building volume ratio R.

9. The urban information model management system and analysis and display method based on the CIM basic platform according to claim 8 is characterized in that: The building base area S is calculated as follows: ; Among them, P i is the feature set of the selected layer, S i is the area corresponding to the feature, which is defined by the feature's area field. P' is the feature drawn by the land use range drawing function. Select P i The sum of the areas corresponding to the elements i that intersect with P' on the ground is the building base area S; The land area S' is the area corresponding to the element P' drawn by the land range drawing function; The building density ρ is calculated as follows: ; The total building area S'' is calculated as follows: ; Among them, f i For element P i The corresponding number of floors is defined by the floor field of the feature. When the floor field does not exist, and the floor height field and building height field exist, the number of floors f i The calculation formula is changed to: Among them, h i For element P i The corresponding building height is defined by the building height field of the feature, h' i For element P i The corresponding layer height is defined by the layer height field of the feature; The calculation formula of building volume ratio R is: .

10. The urban information model management system and analysis and display method based on the CIM basic platform according to claim 1 is characterized in that: The holographic city module contains a roaming editing function, including importing roaming, exporting roaming, adding roaming nodes, clearing roaming, playing roaming, roaming play mode, roaming node duration, and roaming node list. The roaming node includes a content box and an operation bar; wherein: the roaming play mode includes two options: automatic play and manual play; the roaming node content box includes the attribute information of the coordinate system, longitude, latitude, altitude, duration, lens direction, and lens inclination of the roaming node; the roaming node operation bar includes the operations of positioning, updating, inserting above, inserting below, and deleting the roaming node.

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