CN113723786B - Visual planning auxiliary system based on three-dimensional GIS - Google Patents
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Abstract
The invention relates to the technical field of engineering management, in particular to a three-dimensional GIS-based visual planning auxiliary system. The intelligent file system comprises a scene construction unit, a three-dimensional display unit, an intelligent file unit and a project planning unit; the scene construction unit is used for constructing a live-action three-dimensional model; the three-dimensional display unit is used for three-dimensionally displaying the planning and design result; the intelligent archive unit is used for achieving three-dimensional visual management of archives. The invention fuses the high-low precision data in the same scene, and can realize browsing at any position and view angle, real-time data measurement and basic data analysis; the design result can be rapidly modeled, visual presentation can be realized, and the communication time is compressed; the online three-dimensional visual management of all files can be realized; the project management system can promote and optimize planning and design results in the project management process, and assist project engineering construction; and the database service is also supported by a single version and a network version.
Description
Technical Field
The invention relates to the technical field of engineering management, in particular to a three-dimensional GIS-based visual planning auxiliary system.
Background
In project engineering, detailed information of entities such as environmental topography, engineering structure and the like of projects needs to be accurately managed in the process of planning, designing and constructing, and the project engineering generally comprises a large number of design drawings, measurement data, electronic archive data and the like. However, there are still many drawbacks in the engineering management methods commonly used at present, such as:
firstly, the traditional planning design intent expression is mainly realized through a line drawing and an effect drawing, and is matched with a text description, and a certain drawing foundation is needed for reading and understanding the design intent, so that the basic knowledge storage requirement of a drawing reader is higher; although some projects can be modeled to express design intent and effect, the built BIM model is generally based on a virtual scene, the design intent and effect are displayed poorly, the expression is not intuitive, related personnel or interested persons cannot understand, understanding is not in place, and communication barriers exist; a part of planning design shows a large-scale three-dimensional scene which can be used, but most of the three-dimensional scene uses geographic information data with lower precision to be filled, and only the management function can be completely expected to be in a refined BIM model on the premise that the three-dimensional GIS data cannot be guaranteed with higher precision; however, many projects with small scale do not build BIM models, and more complicated projects with long construction period are generally BIM workflow after design; after the BIM is used, the BIM is displayed, and the purposes of the coordination and communication in the earlier stage of the project and the omnibearing management of the project construction process can not be achieved completely;
Secondly, when a GIS is used in a large-scale scene, high-low-precision geographic information data cannot be fused, and when three-dimensional display is performed, only independent display can be realized, and the geographic information data cannot be completely fused into the same system for simultaneous display;
thirdly, although the existing software has some project archive management functions, the existing software is a project management idea and module of the BIM, and does not extend project management beyond project construction process, and has no management functions for project early planning, design, operation and maintenance and the like; meanwhile, because the project file management uses a BIM information management module, the database name index mode is realized, the geographic position association is not finished, the geographic position connection is realized, and particularly when BIM data is not available, the system can not realize intelligent file management at all;
fourth, the existing software does not have a rapid modeling or symbolizing function module, and when no BIM project and no post BIM project are used, project management and other works cannot be carried out, and only post construction is carried out without management, so that the existing software has no practical significance;
fifthly, the existing software needs more man-machine interaction content, needs a large number of models to be built by users, is long in time consumption and large in fund demand, and cannot realize three-dimensional visual display and even management functions for items with volume less than one hundred million;
Sixth, when the three-dimensional scene is used in a large scale, the loading data amount of the existing software is basically controlled within 100GB, the system cache and the like cannot be optimized well, and when the large-scale three-dimensional data of the large-scale scene like a highway and the like is added, the system response capability is poor.
However, there is no three-dimensional GIS-based project visualization planning assistance system capable of solving the above-mentioned problems.
Disclosure of Invention
The invention aims to provide a three-dimensional GIS-based visual planning auxiliary system so as to solve the problems in the background technology.
To solve the above problems, one of the objectives of the present invention is to provide a three-dimensional GIS-based visual planning assistance system, comprising
The system comprises a scene construction unit, a three-dimensional display unit, an intelligent archive unit and a project planning unit; the scene construction unit, the three-dimensional display unit, the intelligent archive unit and the project planning unit are sequentially connected through network communication; the scene construction unit is used for acquiring images, pictures and other related data of the construction environment and constructing a real three-dimensional model of the scene through software to form a real three-dimensional environment; the three-dimensional display unit is used for three-dimensionally displaying the planning and design result and selecting the most applicable model for display; the intelligent archive unit is used for realizing three-dimensional visual management of archives by applying a mode of superposing an archive management database with a geographic position information base; the project planning unit is used for carrying out three-dimensional visualized planning operations such as management, display, data service and the like on the construction project;
The scene construction unit comprises an image acquisition module, a base map superposition module, a live-action three-dimensional module, an elevation modeling module and a data processing module;
the three-dimensional display unit comprises a BIM display module, a GIS display module, a combined display module and a mode selection module;
the intelligent archive unit comprises a period management module, a reverse perfecting module, a remote management module and a history management module;
the project planning unit comprises a project management module, a project display module, a visual auxiliary module and a database service module;
when the three-dimensional GIS-based visual planning auxiliary system is operated, the scene construction unit generates a basic topography base map of a scene with a larger range by acquiring a digital positive shooting image map or a high definition satellite image map, constructs an accurate live-action three-dimensional model, generates a live-action three-dimensional scene with a project area range, and fuses two kinds of data with different high and low precision into the same scene; the method comprises the steps of loading thematic vector data issued by various departments such as natural resources, water conservancy, environmental protection, forestry and the like, setting data to be overlapped and displayed according to topography, and superposing two-dimensional vector data in a three-dimensional basic geographic information scene to realize three-dimensional display of two-dimensional GIS data; the three-dimensional display unit supports rapid modeling of BIM-free design items, so that design results can be presented through a three-dimensional twin scene at the early stage of project development, and design intentions and design effects are intuitively expressed for project constructors, designers, interest relatives and the like; when the BIM is established by the design result, the system supports the BIM result of directly importing the design, and can completely retain related components and BIM information; the intelligent archive unit realizes three-dimensional visual management on all archives based on an archive management mode of database name index and geographic position information positioning, and intuitively carries out partition management on the archives from the area position; the project planning unit can perform full life cycle management work from project self-standing to operation and maintenance, and combines a three-dimensional visual management module of intelligent files, a three-dimensional visual establishment module of planning and designing results and the like to realize the functions of whole process tracking of construction management, risk early warning prompt, information whole network updating, summarization, three-dimensional visual display and the like, and the planning and designing results are promoted and optimized in the project management process, so that the project engineering construction is assisted.
As a further improvement of the technical scheme, the signal output end of the image acquisition module is connected with the signal input end of the base map superposition module, the signal output end of the base map superposition module is connected with the signal input end of the live-action three-dimensional module, the signal output end of the live-action three-dimensional module is connected with the signal input end of the elevation modeling module, and the signal output end of the elevation modeling module is connected with the signal input end of the data processing module; the image acquisition module is used for acquiring a digital orthophoto image through aerial photogrammetry or acquiring a high-definition satellite image through a satellite, performing differential correction on the image, and manufacturing a large-range digital orthophoto image after splicing, cutting and color balance processing, and acquiring information data such as high-precision photos, point clouds and the like of a project area through oblique photogrammetry, laser radar measurement and the like in field industry; the base map superposition module is used for superposing a large-range digital orthographic image and a digital elevation model with general precision so as to generate a basic topography base map of a large-range scene; the live-action three-dimensional module is used for constructing a high-precision and high-resolution three-dimensional live-action model in the field through third-party three-dimensional modeling software; the elevation modeling module is used for acquiring elevation points on the built three-dimensional model by using third party software and manufacturing a high-precision digital elevation model by using the acquired elevation points; the data processing module is used for carrying out superposition processing on the topographic data, the inclined data and the thematic data and then fusing the topographic data, the inclined data and the thematic data on the built three-dimensional model so as to further improve the simulation and the accuracy of the model.
In the live-action three-dimensional module, the third-party three-dimensional modeling software comprises Smart3D, photoScan and the like, and corresponding model formats are osgb, S3C and the like.
In the elevation modeling model, the third party software comprises EPS, DP-Mapper and the like.
As a further improvement of the technical scheme, in the image acquisition module, the color balance processing of the image adopts a color binarization processing method, and the steps are as follows:
step1, setting a gray value f (i, j) of the image at a pixel point (i, j), and considering a (2ω+1) x (2ω+1) window centered on the pixel point (i, j);
step2, calculating a threshold value T (i, j) of each pixel point (i, j) in the image;
step3, binarizing each pixel point (i, j) in the image point by using the value of b (i, j).
As a further improvement of the technical scheme, the data processing module comprises a terrain data module, an inclined data module, a thematic data module and a data superposition module; the topographic data module, the inclined data module and the thematic data module are sequentially connected through network communication and run in parallel, and the signal output ends of the topographic data module, the inclined data module and the thematic data module are connected with the signal input end of the data superposition module; the terrain data module is used for processing the terrain data and superposing the digital orthographic image and the digital elevation model so as to produce a large-scale three-dimensional terrain base map; the inclination data module is used for processing inclination data, processing hierarchical tile data with the format of osgb into a hierarchical 3dml format, and producing a real-scene three-dimensional scene which can be loaded by the system; the thematic data module is used for processing thematic data, projecting land utilization status quo, national space planning, water resource protection area, wetland, forestry investigation and other data issued by natural resources, water conservancy, environmental protection, forestry and the like onto a three-dimensional topography base map, and displaying according to topography fluctuation; the data superposition module is used for superposing data of multiple items and multiple sources, and various thematic data can be rapidly symbolized and matched according to data display contents and fields during superposition processing.
The inclination data module can realize TB-level data loading based on a self-excellent data algorithm, and can still ensure smooth operation of the system.
As a further improvement of the technical scheme, the BIM display module, the GIS display module and the combination display module are sequentially connected through network communication and run in parallel, and the signal output ends of the BIM display module, the GIS display module and the combination display module are connected with the signal input end of the mode selection module; the BIM display module is used for establishing a BIM three-dimensional model of an engineering project through software, each part of engineering components of the three-dimensional model can be detached, each engineering component corresponds to a component of the actual engineering, and accurate input of corresponding component information is supported; the GIS display module is used for establishing a GIS three-dimensional model of an engineering project through software, supporting the functions of directly loading map layers of a map format and a gdb database, and carrying out symbolization and modeling on the map layers in batches of colors, transparency, labels, display modes and the like after vector data are loaded through a map layer preset pattern; the combined display module is used for combining BIM and GIS models to display scenes, and can automatically match multi-source BIM modeling results according to space coordinate information, read the results into a three-dimensional scene, automatically construct a BIM model data management database according to BIM organization structures and data source information on the loaded BIM model data, store the information database by a GIS data structure and establish a unified communication protocol with the BIM information model to realize interactive updating; the mode selection module is used for automatically selecting and calling the optimal three-dimensional display mode according to the correlation of project engineering, environment, terrain and other information data.
The BIM modeling results of multiple sources are read into the three-dimensional scene by the system in a BIM-first or BIM-later design mode, and BIM model information is not lost.
The BIM model data management library comprises BIM model storage information, model information, space information and the like.
As a further improvement of the technical scheme, the GIS display module comprises a result extraction module, a point element processing module, a line element processing module and a surface element processing module; the result extraction module, the point element processing module, the line element processing module and the surface element processing module are sequentially connected through network communication; the result extraction module is used for extracting and converting the traditional design drawing result into a GIS database through an information extraction function, supporting project decision after the design result is three-dimensional, making design change in a three-dimensional scene, and actively, timely and accurately feeding back the design scheme; the point element processing module is used for automatically writing the attribute information of each record in the point database into a corresponding model by reading the vector point attribute field, adopting a GIS data input attribute, identifying the information by the system and transmitting the information to the model, realizing batch rapid point modeling, simultaneously matching the parameter information of the point model with the GIS database, and after the related information of the point is designed and modified, carrying out data real-time matching on the active response by the system, and reading the point attribute information in real time, thereby realizing the aim of linkage change of the point model along with the design change, so as to effectively ensure the behavior and accuracy of the data; the line element processing module is used for automatically writing the attribute information recorded by each piece in the line database into the corresponding model by reading the attribute field of the design line, adopting GIS data input attribute, identifying the information by the system and transmitting the information to the model, realizing batch quick line modeling, simultaneously matching the parameter information of the line model with the GIS database, carrying out data real-time matching on the active response by the system after the line-modifying related information is designed, and reading the line attribute information in real time, thereby realizing the purpose of linkage change of the line model along with the design change, and effectively guaranteeing the behavior and accuracy of the data; the surface element processing module is used for reading surface elements and attribute information of vectors, selecting a set symbol library, enabling symbolized information in the attribute information to be automatically matched with the symbol library information, realizing quick symbolization of display colors, transparency, labeling information, display modes and the like, simultaneously enabling surface symbolized parameter information to be matched with a GIS database, enabling a system to actively respond to real-time data matching after surface related information is designed and modified, reading surface attribute information in real time, further achieving the purpose that a surface model is changed in a linkage mode along with design change, and effectively guaranteeing the situation and accuracy of the data.
The point element processing module relates to parameters such as model types, model proportions, model directions and the like, and differentiated model object matching, differentiated model proportions and differentiated model direction information determine the differentiation of point model display, so that visual display of design intent and purposes is realized.
The line element processing module supports a plurality of modes such as a broken line equidistant mode, a broken line node-by-node mode, a line-by-line equidistant mode, a line-by-section mode and the like for modeling or symbolizing, and can rapidly model or symbolize all types of linear engineering such as various pipelines, canalization engineering, roads and the like.
Furthermore, the GIS display module supports reading existing point, line and plane vector data, and simultaneously supports rapid modeling or symbolizing of arbitrarily rapid drawing points, lines and planes in a three-dimensional scene.
As a further improvement of the technical scheme, the mode selection module adopts a correlation algorithm of the level correlation coefficient, wherein the correlation algorithm comprises an R coefficient and a Y coefficient, and the calculation expressions of the correlation algorithm are as follows:
r coefficient:
wherein X and Y are the grades of the measured values of X and Y respectively; and the above method is further simplified to be the Szelman class correlation coefficient:
Wherein d i ＝x i -y i I=1, 2, N (N is the number of times);
wherein, the value range of the level correlation coefficient R is between (-1, +1), the larger the absolute value of R is, the larger the level correlation degree among variables is;
y coefficient:
wherein N is s To the number of the same order, N d Is the number of the abnormal pairs;
the same sequence represents two cases (x i ,y i ) And (x) j ，y j ) When compared, has x i >x j Then y i >y j Is of the nature of (2); conversely, if x i >x j Then y i <y j Then it is called an out-of-order pair;
wherein, the value range of the Y coefficient is between (-1, +1), the larger the absolute value of Y is, the larger the level correlation degree among variables is.
As a further improvement of the technical scheme, the period management module, the reverse perfection module, the remote management module and the history management module are connected in sequence through network communication; the period management module is used for supporting all functions of recording, editing, inquiring, counting, analyzing, outputting and the like of the archives through supporting the same-screen visual display of multiple projects and historical archives so as to realize archives management work of the project full life cycle; the reverse perfecting module is used for carrying out file management by combining specific geographic position information, and reversely and actively perfecting a file management database and establishing a file management file structure base on the basis of a BIM model or project pattern spots on the basis of supporting file catalog creation; the remote management module is used for simultaneously distributing design results to a plurality of users in a service form according to authorization by supporting project management functions such as remote end data downloading, data returning and the like, and setting the authority and range of data downloading, viewing, modifying and returning by an authorized person according to authority management; the history management module is used for calling and displaying the project design and the whole design change process in a time axis mode, realizing history file management, automatically recording, editing, modifying, and other information of the history file, establishing a history file database, storing and establishing a history file index base, and calling and browsing the history file by the support system.
The period management module mainly supports distribution and management of design achievements from top to bottom, construction design feedback realizes an online mode from bottom to top, and communication cost and time are saved.
In the remote management module, through data interaction, all parties involved in the project, especially the information exchange intercommunication of design and construction, are realized.
As a further improvement of the technical scheme, the project management module, the project display module, the visual auxiliary module and the database service module are connected through network communication in sequence; the project management module is used for carrying out full life cycle management work from project self-establishment to operation and maintenance, and relates to the whole construction process of planning, evaluation, decision-making, design, construction, completion acceptance, production or delivery; the project display module is used for integrating planning and design results based on a twin three-dimensional scene, constructing an intelligent archive three-dimensional visual management platform and a project three-dimensional visual management platform, realizing project three-dimensional visual presentation and management work, combining the real three-dimensional scene through three-dimensional visualization of the planning and design results, simultaneously realizing project archive three-dimensional visual intelligent management, and improving and optimizing the planning and design results in the project management process so as to assist project construction; the visual auxiliary module is used for presenting data and scenes, and the auxiliary system realizes a real-time and real data carrier with visible and touchable data; the database service module is used for realizing a C/S management mode or a B/S management mode through database service functions of a single edition and a network edition and carrying out database management on all data related to the system.
In the database service module, when the B/S mode is used, the system can completely support the private cloud data service mode, so that the confidentiality of project data can be fully ensured.
As a further improvement of the technical scheme, the project management module comprises a platform building module, a data function module, a scheme comparison module and a project service module; the platform building module, the data function module, the scheme comparison module and the project service module are sequentially connected through network communication; the platform building module is used for building an intelligent archive three-dimensional visual management platform and a project three-dimensional visual management platform by integrating a planning design result with a twin three-dimensional scene, and performing project three-dimensional visual presentation and management work; the data function module is used for managing all functions of acquisition, input, editing, inquiry, analysis, roaming, data statistics, output and the like of GIS data in a three-dimensional scene; the scheme comparison module is used for supporting a multi-scheme multi-screen linkage comparison display function of the project and providing visual and reliable service work for project site selection, scheme decision and the like; the project service module is used for managing project land, construction process, operation and maintenance and the like.
The specific management items of the item service module comprise: adding thematic data into a three-dimensional scene, and performing data editing, superposition analysis, data statistics and the like in the three-dimensional scene to provide visual and visualized services for the earlier site selection of the project; adding design results of each stage into a three-dimensional scene to provide services for project multi-scheme comparison decision-making; and adding the related earlier-stage, construction, operation and other archival data into the three-dimensional scene, and providing timely service for project operation and maintenance.
The three-dimensional visual management of the project is a medium and a mode for converting all technologies of three-dimensional visual, modern and intelligent which are mature at present into practicability and service.
The second object of the present invention is to provide an operation device of the three-dimensional GIS-based visual planning assistance system, which includes a processor, a memory, and a computer program stored in the memory and running on the processor, wherein the processor is configured to implement any one of the three-dimensional GIS-based visual planning assistance systems when executing the computer program.
It is a further object of the present invention to provide a computer readable storage medium storing a computer program which, when executed by a processor, implements any of the above three-dimensional GIS-based visualization planning assistance systems.
Compared with the prior art, the invention has the beneficial effects that:
1. the three-dimensional GIS-based visual planning auxiliary system constructs a real-scene three-dimensional scene of an accurate and high project area range by collecting multi-source environment image data, and fuses two kinds of data with different high and low precision into the same scene, so that the three-dimensional GIS-based visual planning auxiliary system not only has the functions of macroscopic display of the scene, but also meets the requirement of fine management of the project, and simultaneously forms a three-dimensional twin scene of the real world by overlapping thematic data, and can realize the functions of scene browsing, real-time data measurement, basic data analysis and the like of any position and view angle;
2. the visual planning auxiliary system based on the three-dimensional GIS combines the BIM information model and the GIS information model, not only supports direct introduction of the designed BIM result on the premise of completely retaining related components and BIM information, but also supports rapid modeling of the design result through a system module when no BIM design project is adopted, rapid and low-cost design result conversion model is realized, and the rapid modeling result can be updated in an interactive way along with modification of the design result, so that the design result can be presented through a three-dimensional twin scene in the early stage of project development, and after the planning design result is intuitively presented in the three-dimensional scene, decision making design change feedback is provided, and the design result is actively fed back to various parties such as project constructors, designers and interest relatives in an interactive way, so that the design intention, the purpose and the presented design effect can be intuitively expressed, and the communication time of the design and a decision maker is greatly shortened;
3. The three-dimensional GIS-based visual planning auxiliary system realizes online three-dimensional visual management on all files based on a file management mode of database name index and geographic position information positioning, can intuitively perform regional management on the files from the regional position, and intuitively performs three-dimensional presentation on top-to-bottom data management and top-to-bottom data request;
4. the three-dimensional GIS-based visual planning auxiliary system can perform full life cycle management work from project establishment to operation and maintenance, achieves the functions of whole process tracking of construction management, risk early warning prompt, information whole network updating, summarization, three-dimensional visual display and the like, and improves and optimizes planning design results and assists project engineering construction in the project management process;
5. the three-dimensional GIS-based visual planning auxiliary system supports two modes of single edition and network edition to perform database service.
Drawings
FIG. 1 is a block diagram of an exemplary product architecture of the present invention;
FIG. 2 is a block diagram of the overall system set-up of the present invention;
FIG. 3 is a block diagram of a local system device according to the present invention;
FIG. 4 is a second block diagram of a local system device according to the present invention;
FIG. 5 is a third block diagram of a local system device according to the present invention;
FIG. 6 is a fourth block diagram of a local system device of the present invention;
FIG. 7 is a fifth block diagram of a local system device of the present invention;
FIG. 8 is a sixth block diagram of a local system device of the present invention;
FIG. 9 is a seventh block diagram of a local system device of the present invention;
fig. 10 is a schematic diagram of an exemplary electronic computer product apparatus of the present invention.
The meaning of each reference sign in the figure is:
1. a system platform; 11. a processor; 12. third party software; 13. a BIM information model; 14. a GIS information model;
2. an intelligent collector; 21. aerial photogrammetry equipment; 22. a satellite collector; 23. a tilt photogrammetry device; 24. a lidar measurer;
3. a data service; 31. a database server; 32. a cloud database;
4. a display terminal;
100. a scene construction unit; 101. an image acquisition module; 102. a base map superposition module; 103. a live-action three-dimensional module; 104. an elevation modeling module; 105. a data processing module; 1051. a terrain data module; 1052. a tilt data module; 1053. a thematic data module; 1054. a data superposition module;
200. a three-dimensional display unit; 201. a BIM display module; 202. a GIS display module; 2021. the result extraction module; 2022. a point element processing module; 2023. a line element processing module; 2024. a surface element processing module; 203. combining with a display module; 204. a mode selection module;
300. An intelligent archive unit; 301. a period management module; 302. reverse perfecting the module; 303. a remote management module; 304. a history management module;
400. a project planning unit; 401. a project management module; 4011. building a module on a platform; 4012. a data function module; 4013. a scheme comparison module; 4014. a project service module; 402. a project display module; 403. a visual aid module; 404. and the database service module.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1-10, the present embodiment provides a three-dimensional GIS-based visual planning assistance system, including
A scene construction unit 100, a three-dimensional display unit 200, an intelligent archive unit 300 and a project planning unit 400; the scene construction unit 100, the three-dimensional display unit 200, the intelligent archive unit 300 and the project planning unit 400 are sequentially connected through network communication; the scene construction unit 100 is used for acquiring images, pictures and other related data of a construction environment and constructing a real three-dimensional model of a scene through software to form a real three-dimensional environment; the three-dimensional display unit 200 is used for three-dimensionally displaying the planning and design result and selecting the most applicable model for display; the intelligent archive unit 300 is used for realizing three-dimensional visual management of archives by applying a mode of overlaying a geographic position information base with an archive management database; the project planning unit 400 is used for performing planning operations such as three-dimensional visual management, display, data service and the like for a construction project;
The scene construction unit 100 comprises an image acquisition module 101, a base map superposition module 102, a live-action three-dimensional module 103, an elevation modeling module 104 and a data processing module 105;
the three-dimensional display unit 200 comprises a BIM display module 201, a GIS display module 202, a combination display module 203 and a mode selection module 204;
the intelligent archive unit 300 comprises a period management module 301, a reverse perfection module 302, a remote management module 303 and a history management module 304;
the project planning unit 400 includes a project management module 401, a project presentation module 402, a visual assistance module 403, and a database service module 404;
when the three-dimensional GIS-based visual planning auxiliary system is operated, a scene construction unit 100 generates a basic topography base map of a scene with a larger range by acquiring a digital positive photographic image map or a high-definition satellite image map, constructs an accurate live-action three-dimensional model, generates a live-action three-dimensional scene with a project area range, and fuses two kinds of data with different high and low precision into the same scene; the method comprises the steps of loading thematic vector data issued by various departments such as natural resources, water conservancy, environmental protection, forestry and the like, setting data to be overlapped and displayed according to topography, and superposing two-dimensional vector data in a three-dimensional basic geographic information scene to realize three-dimensional display of two-dimensional GIS data; the three-dimensional display unit 200 supports rapid modeling of BIM-free design items, so that design results can be presented through a three-dimensional twin scene at the early stage of project development, and design intentions and design effects can be intuitively expressed to project constructors, designers, stakeholders and the like; when the BIM is established by the design result, the system supports the BIM result of directly importing the design, and can completely retain related components and BIM information; the intelligent archive unit 300 realizes three-dimensional visual management on all archives based on the archive management mode of database name index and geographic position information positioning, and intuitively performs partition management on the archives from the regional position; the project planning unit 400 can perform full life cycle management work from project establishment to operation and maintenance, and combines a three-dimensional visual management module of intelligent files, a three-dimensional visual establishment module of planning and designing results and the like to realize the functions of whole process tracking of construction management, risk early warning prompt, information whole network updating, summarization, three-dimensional visual display and the like, and promote and optimize planning and designing results in the project management process and assist project construction.
In this embodiment, a signal output end of the image acquisition module 101 is connected with a signal input end of the base map superposition module 102, a signal output end of the base map superposition module 102 is connected with a signal input end of the live-action three-dimensional module 103, a signal output end of the live-action three-dimensional module 103 is connected with a signal input end of the elevation modeling module 104, and a signal output end of the elevation modeling module 104 is connected with a signal input end of the data processing module 105; the image acquisition module 101 is used for acquiring a digital orthophoto image through aerial photogrammetry or acquiring a high-definition satellite image through a satellite, performing differential correction on the image, and manufacturing a large-scale digital orthophoto image after splicing, clipping and color balance processing, and acquiring information data such as high-precision photos and point clouds of a project area through oblique photogrammetry, laser radar measurement and the like in the field; the base map superimposing module 102 is configured to superimpose the large-scale digital orthographic image and the digital elevation model with general precision to generate a base topography base map of the large-scale scene; the real three-dimensional module 103 is used for constructing a high-precision and high-resolution three-dimensional real model in the field through third-party three-dimensional modeling software; the elevation modeling module 104 is used for acquiring elevation points on the built three-dimensional model by using third party software and manufacturing a high-precision digital elevation model by using the acquired elevation points; the data processing module 105 is used for performing superposition processing on the topographic data, the oblique data and the thematic data and then fusing the topographic data, the oblique data and the thematic data onto the built three-dimensional model so as to further improve the simulation and the accuracy of the model.
In the live-action three-dimensional module 103, the third-party three-dimensional modeling software includes Smart3D, photoScan and the like, and corresponding model formats are osgb, S3C and the like.
In the elevation modeling model 104, the third party software includes EPS, DP-Mapper, and the like.
Specifically, in the image acquisition module 101, the color balance processing of the image adopts a color binarization processing method, which includes the following steps:
step1, setting a gray value f (i, j) of the image at a pixel point (i, j), and considering a (2ω+1) x (2ω+1) window centered on the pixel point (i, j);
step2, calculating a threshold value T (i, j) of each pixel point (i, j) in the image;
step3, binarizing each pixel point (i, j) in the image point by using the value of b (i, j).
Further, the data processing module 105 includes a terrain data module 1051, an inclination data module 1052, a thematic data module 1053, and a data superimposing module 1054; the topographic data module 1051, the inclined data module 1052 and the thematic data module 1053 are connected through network communication in sequence and run in parallel, and the signal output ends of the topographic data module 1051, the inclined data module 1052 and the thematic data module 1053 are connected with the signal input end of the data superposition module 1054; the terrain data module 1051 is used for processing the terrain data and superposing the digital orthographic image and the digital elevation model so as to produce a large-scale three-dimensional terrain base map; the tilt data module 1052 is used for processing tilt data, processing hierarchical tile data with the format osgb into a hierarchical 3dml format, and producing a real-scene three-dimensional scene which can be loaded by the system; the thematic data module 1053 is configured to process thematic data, project data such as a current land use situation, a national space planning, a water resource protection area, a wetland, and a forestry investigation issued by natural resources, water conservancy, environmental protection, forestry, etc. onto a three-dimensional topography base map, and display the data according to topography fluctuation; the data superposition module 1054 is configured to perform superposition processing on multi-item and multi-source data, and when various types of topical data are subjected to superposition processing, fast symbolized matching can be performed according to the content and the fields of the data display.
The tilt data module 1052 can realize TB-level data loading based on an excellent data algorithm, and can still ensure smooth operation of the system.
In this embodiment, the BIM display module 201, the GIS display module 202 and the combined display module 203 are sequentially connected through network communication and operate in parallel, and the signal output ends of the BIM display module 201, the GIS display module 202 and the combined display module 203 are connected with the signal input end of the mode selection module 204; the BIM display module 201 is used for establishing a BIM three-dimensional model of an engineering project through software, each part of engineering components of the three-dimensional model can be detached, each engineering component corresponds to a component of the actual engineering, and accurate input of corresponding component information is supported; the GIS display module 202 is used for establishing a GIS three-dimensional model of an engineering project through software, supporting the functions of shape format and gdb database image layer direct loading, and carrying out symbolization and modeling on image layers in batches of colors, transparency, labels, display modes and the like after vector data are loaded through image layer preset patterns; the combined display module 203 is used for combining BIM and GIS models to display scenes, and can automatically match multi-source BIM modeling results according to space coordinate information, read the results into a three-dimensional scene, automatically construct a BIM model data management database according to BIM organization structures and data source information on the loaded BIM model data, store the BIM model data management database by a GIS data structure and establish a unified communication protocol with the BIM information model to realize interactive updating; the mode selection module 204 is configured to automatically select and invoke the three-dimensional display mode that is optimally applicable according to the correlation between the project engineering and the information data such as the environment and the topography.
The BIM modeling results of multiple sources are read into the three-dimensional scene by the system in a BIM-first or BIM-later design mode, and BIM model information is not lost.
The BIM model data management library comprises BIM model storage information, model information, space information and the like.
Further, the GIS display module 202 includes a result extraction module 2021, a point element processing module 2022, a line element processing module 2023, and a face element processing module 2024; the result extraction module 2021, the point element processing module 2022, and the line element processing module 2023 are sequentially connected with the face element processing module 2024 through network communication; the result extraction module 2021 is used for extracting and converting the traditional design drawing result into a GIS database through an information extraction function, supporting project decision after the design result is three-dimensional, making design change in a three-dimensional scene, and actively, timely and accurately feeding back the design scheme; the point element processing module 2022 is configured to automatically write attribute information of each record in the point database into a corresponding model by reading a vector point attribute field, and adopt a GIS data entry attribute, identify the information by the system, and transmit the information to the model, so as to implement batch rapid point modeling, and meanwhile, parameter information of the point model is matched with the GIS database, and after the related information of the point is designed and modified, the system performs data real-time matching on active response, reads the point attribute information in real time, and further implements the purpose of linkage change of the point model along with design change, thereby effectively guaranteeing the behavior and accuracy of the data; the line element processing module 2023 is configured to automatically write attribute information recorded in each line database into a corresponding model by reading a design line attribute field, adopt GIS data entry attribute, identify the information by the system, and transmit the information to the model, so as to implement batch rapid line modeling, match parameter information of the line model with the GIS database, and match data in real time in an active response after the line is modified by design, read line attribute information in real time, thereby implementing linkage modification of the line model along with design modification, and effectively guaranteeing behavior and accuracy of the data; the surface element processing module 2024 is configured to read surface elements and attribute information of a vector, select a set symbol library, automatically match symbolized information in the attribute information with information of the symbol library, implement quick symbolization of display color, transparency, labeling information, display mode, and the like, match parameter information of surface symbolization with a GIS database, and perform real-time data matching on active response after surface related information is designed and modified, and read surface attribute information in real time, thereby achieving the purpose of linkage change of a surface model along with design change, and effectively guaranteeing the behavior and accuracy of data.
The point element processing module 2022 relates to parameters such as model types, model proportions, model directions, and the like, and the differentiated model object matching, the differentiated model proportions and the differentiated model direction information determine the differentiation of the point model display, so that the visual display of design intent and purpose is realized.
The line element processing module 2023 supports a plurality of modes such as a line equidistant mode, a line node-by-node mode, a line equidistant mode, a line-by-section mode and the like for modeling or symbolizing, so that all types of linear engineering modeling or symbolizing of various pipelines, canalization engineering, roads and the like can be realized rapidly.
Furthermore, the GIS presentation module 202 supports reading existing point, line, and plane vector data, and simultaneously supports rapid modeling or symbolizing of arbitrarily rapid drawing points, lines, and planes in a three-dimensional scene.
Specifically, the mode selection module 204 employs a correlation algorithm of the level correlation coefficients, including R coefficients and Y coefficients, whose calculation expressions are respectively:
r coefficient:
wherein X and Y are the grades of the measured values of X and Y respectively; and the above method is further simplified to be the Szelman class correlation coefficient:
/>
wherein d i ＝x i -y i I=1, 2, N (N is the number of times);
Wherein, the value range of the level correlation coefficient R is between (-1, +1), the larger the absolute value of R is, the larger the level correlation degree among variables is;
y coefficient:
wherein N is s To the number of the same order, N d Is the number of the abnormal pairs;
the same sequence represents two cases (x i ，y i ) And (x) j ，y j ) When compared, has x i >x j Then y i >y j Is of the nature of (2); conversely, if x i >x j Then y i <y j Then is called an exclusive orA sequence pair;
wherein, the value range of the Y coefficient is between (-1, +1), the larger the absolute value of Y is, the larger the level correlation degree among variables is.
In this embodiment, the period management module 301, the reverse perfection module 302, the remote management module 303 and the history management module 304 are sequentially connected through network communication; the period management module 301 is configured to support all functions of recording, editing, querying, counting, analyzing, outputting, etc. of the archive data by supporting the on-screen visual display of multiple projects and historical archives, so as to implement archive management work of the project full life cycle; the reverse perfecting module 302 is used for combining specific geographic position information to perform file management, and based on the new construction of the file catalog and on the BIM model or project pattern, reverse actively perfecting a file management database and establishing a file management file structure library; the remote management module 303 is configured to support project management functions such as remote end data downloading and data returning, and to distribute design results to multiple users simultaneously in a service form according to authorization, and set authority and range of data downloading, viewing, modifying and returning by an authorized person according to authority management; the history management module 304 is configured to call and display the project design and the whole design change process in a time axis manner, implement history file management, automatically record information such as editing and modifying time, establish a history file database, store and establish a history file index base, and support call and browse of the history file by the system.
The period management module 301 mainly supports the design of distributing and managing the data from top to bottom, and the feedback of the construction design realizes an online mode from bottom to top, thereby saving communication cost and time.
In the remote management module 303, through data interaction, information exchange and intercommunication among parties involved in projects, particularly design and construction, are realized.
In this embodiment, the project management module 401, the project display module 402, the visual auxiliary module 403 and the database service module 404 are sequentially connected through network communication; the project management module 401 is used for performing full life cycle management work from project establishment to operation maintenance, and relates to the whole construction process of planning, evaluation, decision-making, design, construction, completion acceptance, production or delivery; the project display module 402 is used for integrating planning and designing results based on a twin three-dimensional scene, constructing an intelligent archive three-dimensional visual management platform and a project three-dimensional visual management platform, realizing project three-dimensional visual presentation and management work, combining the real three-dimensional scene through three-dimensional visualization of the planning and designing results, and simultaneously realizing project archive three-dimensional visual intelligent management, and improving and optimizing the planning and designing results in the project management process so as to assist project construction; the visual assistance module 403 is used for presenting data and scenes, and the assistance system realizes a real-time and real data carrier with visible and touchable data; the database service module 404 is configured to implement a C/S management mode or a B/S management mode through database service functions of a single version and a network version, and perform database management on all data related to the system.
In the database service module 404, when the B/S mode is used, the system can fully support the private cloud data service mode, so that confidentiality of project data can be fully ensured.
Further, the project management module 401 includes a platform construction module 4011, a data function module 4012, a scheme comparison module 4013, and a project service module 4014; the platform construction module 4011, the data function module 4012, the scheme comparison module 4013 and the project service module 4014 are connected through network communication in sequence; the platform construction module 4011 is used for integrating planning and designing results with a twin three-dimensional scene, constructing an intelligent archive three-dimensional visual management platform and a project three-dimensional visual management platform, and realizing project three-dimensional visual presentation and management work; the data function module 4012 is used for managing all functions of acquisition, input, editing, inquiry, analysis, roaming, data statistics, output and the like of GIS data in a three-dimensional scene; the scheme comparison module 4013 is used for supporting a multi-scheme multi-screen linkage comparison display function of the project and providing visual and reliable service work for project site selection, scheme decision and the like; the project service module 4014 is used for managing project land, construction process, operation and maintenance, and the like.
The specific management items of the item service module 4014 include: adding thematic data into a three-dimensional scene, and performing data editing, superposition analysis, data statistics and the like in the three-dimensional scene to provide visual and visualized services for the earlier site selection of the project; adding design results of each stage into a three-dimensional scene to provide services for project multi-scheme comparison decision-making; and adding the related earlier-stage, construction, operation and other archival data into the three-dimensional scene, and providing timely service for project operation and maintenance.
The three-dimensional visual management of the project is a medium and a mode for converting all technologies of three-dimensional visual, modern and intelligent which are mature at present into practicability and service.
As shown in fig. 1, the present embodiment further provides an exemplary product architecture of the three-dimensional GIS-based visual planning assistance system, which includes a system platform 1, where the system platform 1 includes a processor 11, and a plurality of third party software 12 are installed in the processor 11, and a BIM information model 13 and a GIS information model 14 can be built by the plurality of third party software 12; the system platform 1 is in communication connection with an intelligent collector 2, wherein the intelligent collector 2 comprises, but is not limited to, aerial photogrammetry equipment 21, a satellite collector 22, an oblique photogrammetry device 23, a laser radar measurer 24 and the like; a data service 3 is arranged between the system platform 1 and the intelligent collector 2, the data service 3 comprises a database server 31, and the database server 31 manages a cloud database 32; the processor 11 of the system platform 1 is connected with the display terminal 4 in a signal manner, and the display terminal 4 has a three-dimensional data display function.
As shown in fig. 10, the present embodiment further provides an operation device of the three-dimensional GIS-based visual planning assistance system, which includes a processor, a memory, and a computer program stored in the memory and running on the processor.
The processor comprises one or more than one processing core, the processor is connected with the memory through a bus, the memory is used for storing program instructions, and the three-dimensional GIS-based visual planning auxiliary system is realized when the processor executes the program instructions in the memory.
Alternatively, the memory may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
In addition, the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the computer program realizes the three-dimensional GIS-based visual planning auxiliary system when being executed by a processor.
Optionally, the present invention also provides a computer program product containing instructions which, when run on a computer, cause the computer to perform the above aspects of the three-dimensional GIS-based visualization planning assistance system.
Those of ordinary skill in the art will appreciate that all or a portion of the steps implementing the above embodiments may be implemented by hardware, or may be implemented by a program to instruct related hardware, and the program may be stored in a computer readable storage medium, where the above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk, etc.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. Visual planning auxiliary system based on three-dimensional GIS, its characterized in that: comprising
The system comprises a scene construction unit (100), a three-dimensional display unit (200), an intelligent archive unit (300) and a project planning unit (400); the scene construction unit (100), the three-dimensional display unit (200), the intelligent archive unit (300) and the project planning unit (400) are sequentially connected through network communication; the scene construction unit (100) is used for acquiring images and picture data of a construction environment and constructing a real three-dimensional model of a scene through software to form a real three-dimensional environment; the three-dimensional display unit (200) is used for three-dimensionally displaying planning and design results and selecting the most applicable model for display; the intelligent archive unit (300) is used for realizing three-dimensional visual management of archives by applying a mode of superposing a geographic position information base on an archive management database; the project planning unit (400) is used for performing three-dimensional visualized management, display and data service planning operation on a construction project;
the scene construction unit (100) comprises an image acquisition module (101), a base map superposition module (102), a live-action three-dimensional module (103), an elevation modeling module (104) and a data processing module (105);
the three-dimensional display unit (200) comprises a BIM display module (201), a GIS display module (202), a combination display module (203) and a mode selection module (204);
The intelligent archive unit (300) comprises a period management module (301), a reverse perfecting module (302), a remote management module (303) and a history management module (304), wherein the reverse perfecting module (302) is used for carrying out archive management by combining specific geographic position information, and based on the new construction of a supporting archive catalog, the intelligent archive unit is used for reversely and actively perfecting an archive management database and establishing an archive management file structure library on the basis of a BIM model or on the basis of project pattern spots;
the project planning unit (400) comprises a project management module (401), a project display module (402), a visual auxiliary module (403) and a database service module (404);
when the three-dimensional GIS-based visual planning auxiliary system is operated, the scene construction unit (100) generates a basic topography base map of a scene with a larger range by acquiring a digital forward-shot image map or a high-definition satellite image map, constructs an accurate live-action three-dimensional model, generates a live-action three-dimensional scene with a project area range, and fuses two kinds of data with different high and low precision into the same scene; the method comprises the steps of loading the thematic vector data issued by various departments of natural resources, water conservancy, environmental protection and forestry, setting a data superposition display mode according to the topography, superposing two-dimensional vector data in a three-dimensional basic geographic information scene, and realizing three-dimensional display of two-dimensional GIS data; the three-dimensional display unit (200) supports rapid modeling of BIM-free design items, so that design results can be presented through a three-dimensional twin scene at the early stage of project development, and design intentions and design effects are intuitively expressed to project constructors, designers and stakeholders; when the BIM is established by the design result, the system supports the BIM result of directly importing the design, and can completely retain related components and BIM information; the intelligent archive unit (300) realizes three-dimensional visual management on all archives based on an archive management mode of database name index and geographic position information positioning, and intuitively carries out partition management on the archives from the area position; the project planning unit (400) can perform full life cycle management work from project self-standing to operation and maintenance, and combines a three-dimensional visual management module of intelligent files and a three-dimensional visual establishment module of planning and designing results to realize the whole process tracking of construction management, risk early warning prompt, information whole network updating, summarization and three-dimensional visual display functions, so that the planning and designing results are promoted and optimized in the project management process, and project engineering construction is assisted;
The BIM display module (201), the GIS display module (202) and the combination display module (203) are sequentially connected through network communication and run in parallel, and the signal output ends of the BIM display module (201), the GIS display module (202) and the combination display module (203) are connected with the signal input end of the mode selection module (204); the BIM display module (201) is used for establishing a BIM three-dimensional model of an engineering project through software, each part of engineering components of the three-dimensional model can be detached, each engineering component corresponds to a component of an actual engineering, and accurate input of corresponding component information is supported; the GIS display module (202) is used for establishing a GIS three-dimensional model of an engineering project through software, supporting the function of directly loading map layers of a shape format and a gdb database, and carrying out batch color, transparency, labeling and display modes on the map layers after vector data are loaded through a map layer preset pattern; the combined display module (203) is used for combining BIM and GIS models to display scenes, can automatically match multi-source BIM modeling results according to space coordinate information, reads the results into a three-dimensional scene, automatically constructs a BIM model data management database according to BIM organization structures and data source information on loaded BIM model data, stores the BIM model data management database in a GIS data structure, and establishes a unified communication protocol with the BIM information model to realize interactive updating; the mode selection module (204) is used for automatically selecting and calling the optimal three-dimensional display mode according to the correlation of project engineering, environment and topographic information data;
The GIS display module (202) comprises a result extraction module (2021), a point element processing module (2022), a line element processing module (2023) and a surface element processing module (2024); the result extraction module (2021), the point element processing module (2022), the line element processing module (2023) and the surface element processing module (2024) are sequentially connected through network communication; the result extraction module (2021) is used for extracting and converting the traditional design drawing result into a GIS database through an information extraction function, supporting project decision after the design result is three-dimensional, making design change in a three-dimensional scene, and actively, timely and accurately feeding back the design scheme; the point element processing module (2022) is used for automatically writing attribute information of each record in the point database into a corresponding model by reading vector point attribute fields, adopting GIS data input attribute, identifying the information by the system and transmitting the information to the model, realizing batch rapid point modeling, simultaneously matching parameter information of the point model with the GIS database, and after designing and modifying point related information, carrying out data real-time matching on active response by the system, reading the point attribute information in real time, and further realizing the purpose of linkage change of the point model along with design change, thereby effectively guaranteeing the behavior and accuracy of the data; the line element processing module (2023) is used for automatically writing the attribute information of each record in the line database into a corresponding model by reading the attribute field of the design line, adopting GIS data input attribute, identifying the information by the system and transmitting the information to the model, realizing batch quick line modeling, simultaneously matching the parameter information of the line model with the GIS database, and after the related information of the line is designed and modified, carrying out data real-time matching on active response by the system, reading the line attribute information in real time, further realizing the purpose of linkage change of the line model along with the design change, and effectively guaranteeing the behavior and accuracy of the data; the face element processing module (2024) is used for reading face elements and attribute information of vectors, selecting a set symbol library, enabling symbolized information in the attribute information to be automatically matched with information of the symbol library, achieving quick symbolization of display colors, transparency, labeling information and display modes, enabling face symbolized parameter information to be matched with a GIS database, enabling a system to conduct data real-time matching through active response after face related information is designed and modified, reading face attribute information in real time, further achieving the purpose that face models are changed in a linkage mode along with design change, and effectively guaranteeing the behavior and accuracy of data.
2. The three-dimensional GIS-based visual planning assistance system of claim 1, wherein: the signal output end of the image acquisition module (101) is connected with the signal input end of the base map superposition module (102), the signal output end of the base map superposition module (102) is connected with the signal input end of the live-action three-dimensional module (103), the signal output end of the live-action three-dimensional module (103) is connected with the signal input end of the elevation modeling module (104), and the signal output end of the elevation modeling module (104) is connected with the signal input end of the data processing module (105); the image acquisition module (101) is used for acquiring a digital orthophoto image through aerial photogrammetry or acquiring a high-definition satellite image through a satellite, performing differential correction on the image, and manufacturing a large-range digital orthophoto image after splicing, cutting and color balance processing, and acquiring high-precision photos and point cloud information data of a project area through oblique photogrammetry and laser radar measurement in field industry; the base map superposition module (102) is used for superposing a large-range digital orthographic image and a digital elevation model with general precision so as to generate a basic topography base map of a large-range scene; the live-action three-dimensional module (103) is used for constructing a high-precision and high-resolution three-dimensional live-action model in the field through third-party three-dimensional modeling software; the elevation modeling module (104) is used for acquiring elevation points on the built three-dimensional model by using third party software and manufacturing a high-precision digital elevation model by using the acquired elevation points; the data processing module (105) is used for carrying out superposition processing on the topographic data, the inclined data and the thematic data and then fusing the topographic data, the inclined data and the thematic data on the built three-dimensional model so as to further improve the simulation and the accuracy of the model.
3. The three-dimensional GIS-based visual planning assistance system of claim 2, wherein: in the image acquisition module (101), the color balance processing of the image adopts a color binarization processing method, and the steps are as follows:
step1, setting a gray value f (i, j) of the image at a pixel point (i, j), and considering a (2ω+1) x (2ω+1) window centered on the pixel point (i, j);
step2, calculating a threshold value T (i, j) of each pixel point (i, j) in the image;
step3, binarizing each pixel point (i, j) in the image point by using the value of b (i, j).
4. The three-dimensional GIS-based visual planning assistance system of claim 2, wherein: the data processing module (105) comprises a terrain data module (1051), an inclination data module (1052), a thematic data module (1053) and a data superposition module (1054); the topographic data module (1051), the inclined data module (1052) and the thematic data module (1053) are sequentially connected through network communication and run in parallel, and the signal output ends of the topographic data module (1051), the inclined data module (1052) and the thematic data module (1053) are connected with the signal input end of the data superposition module (1054); the topographic data module (1051) is used for processing topographic data and superposing the digital orthographic image and the digital elevation model so as to produce a large-scale three-dimensional topographic base map; the inclination data module (1052) is used for processing inclination data, processing hierarchical tile data with a format of osgb into a hierarchical 3dml format, and producing a real-scene three-dimensional scene which can be loaded by the system; the thematic data module (1053) is used for processing thematic data, projecting land utilization status quo, national space planning, water resource protection area, wetland and forestry investigation data issued by natural resources, water conservancy, environmental protection and forestry onto a three-dimensional topography base map, and displaying according to topography fluctuation; the data superposition module (1054) is used for carrying out superposition processing on multi-project and multi-source data, and various thematic data can be rapidly symbolized and matched according to data display contents and fields during superposition processing.
5. The three-dimensional GIS-based visual planning assistance system of claim 1, wherein: the mode selection module (204) employs a correlation algorithm of rank correlation coefficients.
6. The three-dimensional GIS-based visual planning assistance system of claim 1, wherein: the period management module (301), the reverse perfection module (302), the remote management module (303) and the history management module (304) are sequentially connected through network communication; the period management module (301) is used for supporting all functions of recording, editing, inquiring, counting, analyzing and outputting of archival data by supporting the same-screen visual display of multiple projects and historical archives so as to realize archival management work of the whole life period of the projects; the remote management module (303) is used for simultaneously distributing design results to a plurality of users in a service form according to authorization by supporting remote end data downloading and data feedback project management functions, and setting the authority and range of data downloading, checking, modifying and feedback of an authorized person according to authority management; the history management module (304) is used for calling and displaying the project design and the whole design change process in a time axis mode, realizing history file management, automatically recording, editing and modifying time information of the history file, establishing a history file database, storing and establishing a history file index base, and calling and browsing the history file by the support system.
7. The three-dimensional GIS-based visual planning assistance system of claim 1, wherein: the project management module (401), the project display module (402), the visual auxiliary module (403) and the database service module (404) are sequentially connected through network communication; the project management module (401) is used for carrying out full life cycle management work from project self-standing to operation and maintenance, and relates to the whole construction process of planning, evaluation, decision-making, design, construction, completion acceptance, production or delivery use; the project display module (402) is used for integrating planning and designing results based on a twin three-dimensional scene, constructing a three-dimensional visual management platform of intelligent files and a three-dimensional visual management platform of the project, realizing three-dimensional visual presentation and management work of the project, combining the three-dimensional visual of the planning and designing results, simultaneously realizing three-dimensional visual intelligent management of the project files, and improving and optimizing the planning and designing results in the project management process so as to assist project engineering construction; the visual auxiliary module (403) is used for presenting data and scenes, and an auxiliary system realizes a real-time and real data carrier with visible and touchable data; the database service module (404) is used for realizing a C/S management mode or a B/S management mode through the database service functions of the single version and the network version, and carrying out database management on all data related to the system.
8. The three-dimensional GIS-based visual planning assistance system of claim 7, wherein: the project management module (401) comprises a platform building module (4011), a data function module (4012), a scheme comparison module (4013) and a project service module (4014); the platform building module (4011), the data function module (4012), the scheme comparison module (4013) and the project service module (4014) are sequentially connected through network communication; the platform construction module (4011) is used for integrating planning and designing results in a twin three-dimensional scene, constructing a smart archive three-dimensional visual management platform and a project three-dimensional visual management platform, and realizing project three-dimensional visual presentation and management work; the data function module (4012) is used for managing all functions of acquisition, input, editing, inquiry, analysis, roaming, data statistics and output of GIS data in a three-dimensional scene; the scheme comparison module (4013) is used for supporting a multi-scheme multi-screen linkage comparison display function of the project and providing visual and reliable service work for project site selection and scheme decision; the project service module (4014) is used for managing project land, construction process and operation and maintenance.
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