CN118170857A - Two-dimensional and three-dimensional integrated mapping and library building method and system for underground space - Google Patents
Two-dimensional and three-dimensional integrated mapping and library building method and system for underground space Download PDFInfo
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Abstract
The invention discloses a method and a system for building a library by two-dimensional and three-dimensional integrated imaging of an underground space, which belong to the technical field of map data processing. According to the invention, the multiscale and multiscale space-time data are subjected to deep fusion by providing a multiscale heterogeneous data fusion algorithm, a unified data platform is constructed, a solid data base is provided for subsequent application, automatic monomerization modeling is performed according to preset parameters or field acquisition data, two-dimensional to three-dimensional conversion is facilitated, the readability and practicability of the model are improved, and the multiscale and multiscale space-time data can be systematically classified and encoded by adopting a distributed space-time database design, and the retrieval efficiency of the data is greatly improved by adopting a distributed storage architecture.
Description
Technical Field
The invention belongs to the technical field of map data processing, and particularly relates to a method and a system for building a map of a two-dimensional and three-dimensional integrated underground space.
Background
The urban underground space resource is orderly, reasonably, comprehensively and efficiently developed and managed, the contradiction between the original urban landscape and urban modern construction can be effectively solved, and the urban underground space resource is also an important measure for solving three crisis of urban population, resource and environment, and a necessary choice and an important way for treating urban syndrome and realizing urban green sustainable development. The underground space has certain covering property and opacity relative to the overground space, and the construction of the two-dimensional and three-dimensional integration of the underground space can reduce the improper planning and analysis of the underground space caused by the inability of perspective.
The underground space contains more data, under the condition of different data sources, a single data processing platform cannot meet the standard unification of a large amount of data, the underground space data comprises two-dimensional data and three-dimensional data, the relevant data cannot be judged at the intersections of dense positions among different dimensional data, the urban fine management degree is continuously improved along with the continuous change of urban scale development, the underground pipe network complexity is higher and higher, and the underground pipe network needs to be continuously changed, so that if the traditional two-dimensional mode is still used, great challenges are brought to the work of planning, designing, constructing, maintaining and the like of the underground pipe network, but the relevance between a large amount of plane data and the three-dimensional data is weak, rapid conversion cannot be carried out, and an improvement space exists.
Disclosure of Invention
The invention aims at: in order to solve the problems that the complexity of an underground pipe network is higher and needs to be changed continuously, great challenges are brought to the planning, design, construction, maintenance and other works of the underground pipe network, the two-dimensional and three-dimensional integrated map construction method and system for the underground space are provided.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The system comprises a task processing center, wherein the task processing center is used for carrying out mapping and library construction work through a service area, the output end of the task processing center is electrically connected with the input end of a data processing unit, the data processing unit is used for carrying out lossless data sharing on different data sources through a multi-source heterogeneous data fusion algorithm, the input end of the data processing unit is electrically connected with the output end of a data acquisition unit, the data acquisition unit is used for acquiring data information of the mapping and library construction, the output end of the task processing center is electrically connected with the input end of a multi-dimensional association unit, the multi-dimensional association unit is used for carrying out association labeling and establishing connection on drawing data with different dimensions, the output end of the multi-dimensional association unit is electrically connected with the input end of a platform application unit, and the platform application unit is used for carrying out platform application output on the associated mapping and library;
the output end of the platform application unit is electrically connected with the input end of the result output module, the result output module is used for outputting an application result based on multidimensional mapping data, the input end of the multidimensional association unit is electrically connected with the output end of the data fusion module, the data fusion module is used for carrying out fusion calling on the data processed by the data processing unit, and the input end of the data fusion module is electrically connected with the output end of the data processing unit.
As a further description of the above technical solution:
The input end of the multidimensional association unit is electrically connected with the output end of the three-dimensional network generation module, and the three-dimensional network generation module is used for generating a three-dimensional visual graph for graphical display.
As a further description of the above technical solution:
The data processing unit comprises a data cleaning module, the output end of the data cleaning module is electrically connected with the input end of the data consistency module, the data consistency module is used for carrying out consistency optimization processing on data, the output end of the data consistency module is electrically connected with the input end of the missing data processing module, and the missing data processing module is used for analyzing whether the input data has missing data or not;
The output end of the missing data processing module is electrically connected with the input end of the repeated data processing module, and the repeated data processing module is used for screening out heavy data;
The output end of the repeated data processing module is electrically connected with the input end of the exception processing module, and the exception processing module is used for eliminating the exception data;
The input end of the data cleaning module is electrically connected with the output end of the rule configuration module, and the rule configuration module is used for carrying out preset configuration of data processing rules.
As a further description of the above technical solution:
the platform application unit comprises a scene application module and an engineering analysis module, wherein the scene application module is used for applying scenes according to the established mapping data, and the engineering analysis module is used for carrying out engineering analysis according to the established mapping data.
As a further description of the above technical solution:
The multidimensional association unit comprises a two-dimensional data generation module and a three-dimensional data generation module, the two-dimensional data generation module is used for generating a two-dimensional data graph, the three-dimensional data generation module is used for generating a three-dimensional data graph, the output ends of the two-dimensional data generation module and the three-dimensional data generation module are electrically connected with the input end of a multidimensional linkage module, and the multidimensional linkage module is used for establishing relation network data between the two-dimensional data and the three-dimensional data and linking the two-dimensional data and the three-dimensional data.
As a further description of the above technical solution:
the input end of the multidimensional linkage module is electrically connected with the output end of the three-dimensional data light-weight module, and the three-dimensional data light-weight module is used for carrying out light weight de-duplication processing on three-dimensional data.
As a further description of the above technical solution:
the two-dimensional and three-dimensional integrated imaging and library building method for the underground space specifically comprises the following steps:
s1, collecting multi-source heterogeneous data of an underground space, and preprocessing the data to remove data noise;
S2, converting the data into unified data and inputting the unified data into a database through a multi-source heterogeneous data fusion algorithm;
s3, establishing a distributed space database to perform storage management of the fused data;
S4, after the two-dimensional integrated graph formation library is generated, analysis in engineering and analysis of scene application are carried out through the scene application.
As a further description of the above technical solution:
The multi-source heterogeneous data comprise pipeline data, underground municipal facility data, BIM data, underground space point cloud data such as pipe gallery and the like, oblique photography data, remote sensing image data, internet of things perception data, mdb, gdb, dat, shp, kml and json data.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. According to the invention, the multiscale and multiscale space-time data are subjected to deep fusion by providing a multiscale heterogeneous data fusion algorithm, a unified data platform is constructed, a solid data base is provided for subsequent application, automatic monomerization modeling is performed according to preset parameters or field acquisition data, two-dimensional to three-dimensional conversion is facilitated, the readability and practicability of the model are improved, and the multiscale and multiscale space-time data can be systematically classified and encoded by adopting a distributed space-time database design, and the retrieval efficiency of the data is greatly improved by adopting a distributed storage architecture.
2. According to the invention, after data acquisition is performed in the system, data are fused under a multidimensional association unit, corresponding two-dimensional three-dimensional integrated map information of the underground space is generated, underground municipal facilities such as underground rail transit, urban underground pipelines, underground channels, underground public parking lots, civil air defense and the like are digitalized, underground space basic geographic entities are constructed, underground space data are constructed, intelligent monitoring is performed on an underground space data base by using IT technologies such as big data, artificial intelligence, cloud computing and the Internet of things, refined expression and space statistical analysis are performed, and service refined management is facilitated, so that the optimization of different underground space data is adapted.
Drawings
FIG. 1 is a schematic diagram of a system structure of a two-dimensional three-dimensional integrated map library system for an underground space according to the present invention;
FIG. 2 is a logical block diagram of a data processing unit of the system for building libraries of two-dimensional and three-dimensional integrated map of an underground space according to the present invention;
FIG. 3 is a logical block diagram of a platform application unit of the system for building libraries of two-dimensional and three-dimensional integrated map of an underground space according to the present invention;
FIG. 4 is a logical block diagram of a multidimensional association unit of the two-dimensional integrated mapping and library-building system of the underground space;
Fig. 5 is a flow chart of a method for constructing a database by integrating two-dimensional and three-dimensional underground space according to the present invention.
Legend description:
1. A multidimensional association unit; 101. a two-dimensional data generation module; 102. a three-dimensional data generation module; 103. a multidimensional linkage module; 104. a three-dimensional data light weight module; 2. a task processing center; 3. a data processing unit; 301. a rule configuration module; 302. a data cleaning module; 303. a data consistency module; 304. a missing data processing module; 305. repeating the data processing module; 306. an exception handling module; 4. a data acquisition unit; 5. a data fusion module; 6. a three-dimensional network generation module; 7. a platform application unit; 701. a scene application module; 702. an engineering analysis module; 8. and a result output 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.
Referring to fig. 1-5, the present invention provides a technical solution: the system comprises a task processing center 2, wherein the task processing center 2 is used for carrying out mapping and library construction work through a service area, the output end of the task processing center 2 is electrically connected with the input end of a data processing unit 3, the data processing unit 3 is used for carrying out lossless data sharing on different data sources through a multi-source heterogeneous data fusion algorithm, the input end of the data processing unit 3 is electrically connected with the output end of a data acquisition unit 4, the data acquisition unit 4 is used for acquiring data information of mapping and library construction, the output end of the task processing center 2 is electrically connected with the input end of a multi-dimensional association unit 1, the multi-dimensional association unit 1 is used for carrying out association marking and establishing connection on different dimension drawing data, the output end of the multi-dimensional association unit 1 is electrically connected with the input end of a platform application unit 7, and the platform application unit 7 is used for carrying out platform application output on the associated mapping database;
The task processing center 2 is specifically built by: and an information platform is built by adopting an open source technology, and the information platform is separated from a third party application framework. Mainly based on OSG, webGL, cesium, potree, XBIM, ifcOpenShell and other main stream open source frames;
the underground space information platform comprises an underground space data management module, an underground integrated display module, an auxiliary analysis decision module, a statistical analysis module, a data service module and the like which are oriented deep into the functional module, and provides more scientific, accurate and convenient decision support for underground space development, application and management;
The output end of the platform application unit 7 is electrically connected with the input end of the result output module 8, the result output module 8 is used for outputting an application result based on multidimensional mapping data, the input end of the multidimensional correlation unit 1 is electrically connected with the output end of the data fusion module 5, the data fusion module 5 is used for carrying out fusion calling on the data processed by the data processing unit 3, and the input end of the data fusion module 5 is electrically connected with the output end of the data processing unit 3;
The input end of the multidimensional association unit 1 is electrically connected with the output end of the three-dimensional network generation module 6, the three-dimensional network generation module 6 is used for generating a three-dimensional visual graph for image display, the data processing unit 3 comprises a data cleaning module 302, the output end of the data cleaning module 302 is electrically connected with the input end of a data consistency module 303, the data consistency module 303 is used for carrying out consistency optimization processing on data, the output end of the data consistency module 303 is electrically connected with the input end of a missing data processing module 304, and the missing data processing module 304 is used for analyzing whether the input data has missing data or not;
the output end of the missing data processing module 304 is electrically connected with the input end of the repeated data processing module 305, and the repeated data processing module 305 is used for screening out heavy data;
the output end of the repeated data processing module 305 is electrically connected with the input end of the exception processing module 306, and the exception processing module 306 is used for eliminating the exception data;
The input end of the data cleaning module 302 is electrically connected with the output end of the rule configuration module 301, and the rule configuration module 301 is used for performing preset configuration of data processing rules;
the platform application unit 7 comprises a scene application module 701 and an engineering analysis module 702, wherein the scene application module 701 is used for applying scenes according to the established mapping data, and the engineering analysis module 702 is used for carrying out engineering analysis according to the established mapping data;
in application, engineering analysis may be provided, including but not limited to: excavation analysis, section analysis, engineering analysis, clear distance analysis, soil covering analysis and burial depth analysis;
Scenario applications include, but are not limited to: underground CIM scene roaming display, intelligent pipe network management system, mine space monitoring and early warning, water environment ecological monitoring and the like;
The multidimensional association unit 1 comprises a two-dimensional data generation module 101 and a three-dimensional data generation module 102, wherein the two-dimensional data generation module 101 is used for generating a two-dimensional data graph, the three-dimensional data generation module 102 is used for generating a three-dimensional data graph, the output ends of the two-dimensional data generation module 101 and the three-dimensional data generation module 102 are electrically connected with the input end of a multidimensional linkage module 103, and the multidimensional linkage module 103 is used for establishing relationship network data between the two-dimensional data and the three-dimensional data and linking the relationship network data;
the multidimensional heterogeneous data fusion specifically comprises: the system collects underground space development and utilization current situation data including underground pipelines known as urban lifelines, underground municipal facilities (underground traffic engineering, underground street crossing channels, underground parking lots, civil air defense, comprehensive pipe galleries, underground malls, warehouses and the like) and the like, builds a multidimensional data unified management system standard, forms an underground space multidimensional space information data warehousing standard, and provides a key technical means for high-quality management.
The technical problem to be solved mainly is that two-dimensional, three-dimensional, four-dimensional, different structures and data in various colors are mixed, wherein the problems of different spatial positions, unstructured, various spatial relations, chaotic coding, mass data and the like are involved, a general database cannot be simultaneously satisfied and stored, postGIS is taken as an expansion of a PostgreSQL (object relational database) system, a spatial expansion mode based on a database management system is taken as a core, multidimensional heterogeneous data can be contained, space detection data, measurement data, point cloud data, BIM (building information module) data and things sensing sensor data are placed in the same three-dimensional space according to a unified standard, various data fusion based on PCL, VTK, openGL technology is carried out, two-dimensional data are three-dimensional, three-dimensional data are semanticalized and space-time data are serialized, the advantages of the data in various dimensions are fully exerted, and a unified space substrate of the underground space is constructed to provide a supporting basis.
The underground space data is monitored specifically by applying technologies of intelligent sensing of underground space information such as Beidou high-precision positioning, laser point cloud, panoramic photography, digital modeling, multi-source sensing and analysis and the like, underground municipal facilities such as underground rail transit, urban underground pipelines, underground passages, underground public parking lots, civil air defense and the like are digitalized, an underground space foundation geographic entity is constructed, and an underground space data base is constructed. The intelligent monitoring, refined expression and space statistical analysis and the service refined management are carried out on the underground space data base by using IT technologies such as big data, artificial intelligence, cloud computing and the like. The method has the advantages of promoting the investigation and intelligent management of the foundation information of the underground space, perfecting the planning system of the underground space and scientifically realizing land management;
After the construction of underground data is completed, the underground space can be digitized by comprehensively applying technologies such as Beidou high-precision positioning, laser point cloud, panoramic photography, digital modeling and the like, so that the integration of the overground and underground digital twin data is realized, and an indoor and outdoor integrated standardized digital map is formed. The method mainly comprises the working links of data acquisition, information processing, image formation, editing operation, service docking, application expansion and the like, and provides technical support for digital twin city construction;
The input end of the multidimensional linkage module 103 is electrically connected with the output end of the three-dimensional data weight reducing module 104, and the three-dimensional data weight reducing module 104 is used for carrying out weight reduction and weight removal processing on three-dimensional data.
The two-dimensional and three-dimensional integrated imaging and library building method for the underground space specifically comprises the following steps:
s1, collecting multi-source heterogeneous data of an underground space, and preprocessing the data to remove data noise;
S2, converting the data into unified data and inputting the unified data into a database through a multi-source heterogeneous data fusion algorithm;
s3, establishing a distributed space database to perform storage management of the fused data;
The distributed spatial data specifically comprises: constructing a distributed space-time big database based on Hadoop, establishing classification codes for multi-source multi-scale multi-dimensional space-time big data, unifying a framework, and adopting a distributed mode to carry out storage management, so that the retrieval efficiency of the data is improved, and technical support is provided for efficient operation of a platform;
the open source GIS such as QGIS, GDAL and the like contains rich function interfaces, can realize the support of different source data, research the fusion algorithm and can realize the loading of multi-source heterogeneous data; the VTK is an open-source free library, is mainly used for three-dimensional computer graphics, image processing and visualization, and has advantages for modeling and visualization of underground space;
s4, after the two-dimensional integrated graph formation library is generated, analysis in engineering and analysis of scene application are carried out through the scene application;
the multi-source heterogeneous data comprise pipeline data, underground municipal facility data, BIM data, pipe gallery and other underground space point cloud data, oblique photography data, remote sensing image data, internet of things perception data, mdb, gdb, dat, shp, kml and json data;
Further, an embodiment of the present application further provides an electronic device, including: the system comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the two-dimensional and three-dimensional integrated map library building method of the underground space according to the embodiment when executing the program.
Further, an embodiment of the present application further provides a computer readable storage medium, where computer executable instructions are stored, where the computer executable instructions are configured to cause a computer to perform a method for two-dimensional and three-dimensional integrated mapping and library construction of a subsurface space according to the above embodiment.
The present invention is preferably implemented in software, but may also be implemented in hardware or a combination of hardware and software. The invention may also be embodied as computer readable code on a computer readable medium. The computer readable medium is any data storage device that can store data which can be thereafter read by a computer system. Examples of a computer-readable medium include a read-only memory, a random-access memory, a compact disc (CD-ROM), a Digital Versatile Disc (DVD), magnetic cassettes, an optical data storage device, and a carrier wave. The computer readable medium can also be distributed over a network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion
In the present disclosure, the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. The system is characterized by comprising a task processing center (2), wherein the task processing center (2) is used for carrying out mapping library construction work through a service area, the output end of the task processing center (2) is electrically connected with the input end of a data processing unit (3), the data processing unit (3) is used for carrying out lossless data sharing on different data sources through a multi-source heterogeneous data fusion algorithm, the input end of the data processing unit (3) is electrically connected with the output end of a data acquisition unit (4), the data acquisition unit (4) is used for acquiring data information of mapping library construction, the output end of the task processing center (2) is electrically connected with the input end of a multi-dimensional association unit (1), the multi-dimensional association unit (1) is used for carrying out association label establishment connection on drawing data with different dimensions, the output end of the multi-dimensional association unit (1) is electrically connected with the input end of a platform application unit (7), and the platform application unit (7) is used for carrying out platform application output on the associated mapping library;
the platform application unit comprises a platform application unit (7), a result output module (8) and a data fusion module (5), wherein the output end of the platform application unit (7) is electrically connected with the input end of the result output module (8), the result output module (8) is used for outputting an application result based on multidimensional mapping data, the input end of the multidimensional association unit (1) is electrically connected with the output end of the data fusion module (5), the data fusion module (5) is used for carrying out fusion calling on data processed by the data processing unit (3), and the input end of the data fusion module (5) is electrically connected with the output end of the data processing unit (3).
2. The underground space two-dimensional integrated imaging and library building system according to claim 1 is characterized in that the input end of the multidimensional association unit (1) is electrically connected with the output end of the three-dimensional network generation module (6), and the three-dimensional network generation module (6) is used for generating three-dimensional visual graphics for imaging and displaying.
3. The system for building a two-dimensional integrated map of an underground space according to claim 1, wherein the data processing unit (3) comprises a data cleaning module (302), an output end of the data cleaning module (302) is electrically connected with an input end of a data consistency module (303), the data consistency module (303) is used for carrying out consistency optimization processing on data, an output end of the data consistency module (303) is electrically connected with an input end of a missing data processing module (304), and the missing data processing module (304) is used for analyzing whether missing data exists in input data;
The output end of the missing data processing module (304) is electrically connected with the input end of the repeated data processing module (305), and the repeated data processing module (305) is used for screening out heavy data;
The output end of the repeated data processing module (305) is electrically connected with the input end of the exception processing module (306), and the exception processing module (306) is used for eliminating exception data;
the input end of the data cleaning module (302) is electrically connected with the output end of the rule configuration module (301), and the rule configuration module (301) is used for carrying out preset configuration of data processing rules.
4. The two-dimensional integrated mapping and library-building system of underground space according to claim 1, wherein the platform application unit (7) comprises a scene application module (701) and an engineering analysis module (702), the scene application module (701) is used for applying scenes according to the established mapping data, and the engineering analysis module (702) is used for engineering analysis according to the established mapping data.
5. The underground space two-dimensional integrated mapping library system according to claim 1, wherein the multi-dimensional association unit (1) comprises a two-dimensional data generation module (101) and a three-dimensional data generation module (102), the two-dimensional data generation module (101) is used for generating a two-dimensional data graph, the three-dimensional data generation module (102) is used for generating a three-dimensional data graph, the output ends of the two-dimensional data generation module (101) and the three-dimensional data generation module (102) are electrically connected with the input end of a multi-dimensional linkage module (103), and the multi-dimensional linkage module (103) is used for establishing relationship network data between the two-dimensional data and the three-dimensional data and linking the two-dimensional data.
6. The two-dimensional integrated imaging and library building system for the underground space according to claim 5, wherein the input end of the multi-dimensional linkage module (103) is electrically connected with the output end of the three-dimensional data light-weight module (104), and the three-dimensional data light-weight module (104) is used for carrying out light weight de-duplication processing on three-dimensional data.
7. The method for building the library by the two-dimensional integrated imaging of the underground space is applied to the system for building the library by the two-dimensional integrated imaging of the underground space according to any one of claims 1 to 6, and is characterized by comprising the following steps:
s1, collecting multi-source heterogeneous data of an underground space, and preprocessing the data to remove data noise;
S2, converting the data into unified data and inputting the unified data into a database through a multi-source heterogeneous data fusion algorithm;
s3, establishing a distributed space database to perform storage management of the fused data;
S4, after the two-dimensional integrated graph formation library is generated, analysis in engineering and analysis of scene application are carried out through the scene application.
8. The method for two-dimensional integrated mapping and library construction of an underground space according to claim 7, wherein the multi-source heterogeneous data comprises pipeline data, underground municipal facility data, BIM data and pipe gallery underground space point cloud data, oblique photography data, remote sensing image data, internet of things perception data, mdb, gdb, dat, shp, kml and json data.
9. An electronic device, comprising: memory, processor and computer program stored on the memory and executable on the processor, wherein the processor implements the steps of a method for two-three-dimensional integrated mapping and library-building of a subsurface space as claimed in any one of claims 7-8 when executing the program.
10. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform a method of two-dimensional integrated map construction of a subterranean space according to any of claims 7-8.
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