CN114972663A - Mobile terminal urban geological data fusion and visual analysis system - Google Patents
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Abstract
A mobile-end urban geological data fusion and visual analysis system comprises: the geological data mining and analyzing system comprises a geological data storage and exchange unit, a multi-source geological data fusion unit, a three-dimensional geological data model visualization unit and a geological data mining and analyzing unit; the geological data storage and exchange unit is used for managing the data of the mobile terminal and exchanging the data of the mobile terminal and the server terminal; the multi-source geological data fusion unit is used for performing tiling processing on the multi-source local vector data and performing fusion, superposition and display on a processing result and the online data; the three-dimensional geological data model visualization unit is used for performing lightweight processing on the three-dimensional geological model, and performing progressive grid transmission and multi-strategy collaborative three-dimensional data rendering on the three-dimensional model; and the geological data mining and analyzing unit is used for clustering and mining the geological text by improving a k-means algorithm and evaluating the address model by a high-precision vector grid model. The invention solves the problem that the display technology of large-scale three-dimensional terrain is lack at the mobile end.
Description
Technical Field
The invention relates to the field of geological data, in particular to a mobile terminal urban geological data fusion and visualization analysis system.
Background
The three-dimensional geological modeling is an important work content of three-dimensional space data construction, is an indispensable link in urban geological construction, and is also basic data of three-dimensional visualization, three-dimensional scene roaming and correlation analysis. With the development of mobile communication technology and the popularization of mobile devices, the frequency of using mobile devices in daily life and work is gradually increasing. For the display technology of large-scale three-dimensional terrain, the research on the PC side is mature, but the research on the mobile side is still rare, and the lightweight and visual display of a three-dimensional model on the mobile side are necessary.
Disclosure of Invention
In view of the above, the present invention has been developed to provide a mobile-end urban geological data fusion and visualization analysis system that overcomes, or at least partially addresses, the above-mentioned problems.
In order to solve the technical problem, the embodiment of the application discloses the following technical scheme:
a mobile-end urban geological data fusion and visualization analysis system, comprising: the geological data mining and analyzing system comprises a geological data storage and exchange unit, a multi-source geological data fusion unit, a three-dimensional geological data model visualization unit and a geological data mining and analyzing unit; wherein:
the geological data storage and exchange unit is used for managing the data of the mobile terminal and exchanging the data of the mobile terminal and the server terminal;
the multi-source geological data fusion unit is used for performing tiling processing on multi-source local vector data, performing fusion, superposition and display on a processing result and on-line data, and achieving the purpose of fusing the multi-source data to the same mobile GIS application;
the three-dimensional geological data model visualization unit is used for performing lightweight processing on the three-dimensional geological model, performing progressive grid transmission on the three-dimensional model and rendering three-dimensional data with multi-strategy cooperation to realize the purpose of three-dimensional geological data visualization;
and the geological data mining and analyzing unit is used for clustering and mining the geological text by improving a k-means algorithm and evaluating the address model by a high-precision vector grid model.
Further, managing the mobile terminal data specifically includes: the method comprises the steps of calculating a tile storage directory and generating a tile database, wherein the storage directory of the tiles is calculated by calculating a plurality of longitudes and latitudes of the upper left corner and the lower right corner, then calculating a tile row column number corresponding to Web mercator projection, taking the row column number of the upper left corner as a start tile index number and the row column number of the lower right corner as an end tile index number, and calculating the middle part through circular traversal.
Further, the method for generating the tile database comprises the following steps: NET technology based drive control of the SQLite database is constructed, uploading and downloading of files between the database and a disk are achieved, and a tile database is generated.
Further, the method for exchanging data between the mobile terminal and the server terminal comprises: standardizing the map packet exchange format of the mobile terminal and designing the data exchange of the mobile terminal; the mobile terminal map packet exchange format specification comprises a grid tile map packet exchange format, a vector tile map packet exchange format, a grid data packet exchange format and a data table index.
Further, the specific method for the multi-source geological data fusion unit to work is as follows: firstly, pre-correlation processing is carried out on multi-source local vector data to realize unification of format conversion and space reference, tiling processing is carried out on result data with unified format conversion and space reference to realize better display effect of mobile terminal data, and meanwhile tiled data is dumped into mobile equipment to prepare data for later-stage data fusion display; secondly, designing a unified online data interface to realize the fusion access of online data; the multi-source difference of the online data can cause a barrier of access between the data, and the uniform online data access interface can shield the multi-source difference of the online data to realize uniform access of the online data; and finally, fusion, superposition and display of the tiling processing result data of the multi-source local vector data and the online data can be realized, and the purpose of fusing the multi-source data to the same mobile GS application system is realized.
Further, the three-dimensional geological data model visualization unit performs lightweight processing on the three-dimensional geological model, and specifically includes: and cutting the three-dimensional geoscience model, simplifying the three-dimensional model blocks based on the vertex local feature degree, and constructing and restoring the three-dimensional model with the constraint condition.
Further, the transmission of the three-dimensional model progressive mesh by the three-dimensional geological data model visualization unit specifically includes: and compressing the grid model, encoding the three-dimensional model data after compression, and finally decoding the three-dimensional model data to achieve the purpose of progressive grid transmission of the three-dimensional model.
Further, the three-dimensional geological data model visualization unit performs multi-strategy collaborative three-dimensional data rendering, and specifically includes: determining a three-dimensional rendering mechanism, and optimizing the three-dimensional rendering mechanism at a mobile terminal, wherein the optimization of the three-dimensional rendering mechanism comprises a grid scheduling strategy based on viewpoint distance, a visual eliminating strategy and a data preloading strategy.
Further, the geological data mining and analyzing unit performs clustering mining on the geological text by improving the k-means algorithm, and the concrete steps are as follows: preprocessing the text, clustering the preprocessed text by improving a k-means algorithm, and evaluating a clustering result.
Further, the geological data mining and analyzing unit evaluates the address model through a high-precision vector grid model, and specifically comprises the following steps: and constructing a three-dimensional model, extracting the attribute information of the evaluation factor, performing coupling analysis on the two-dimensional data, and reflecting problem factors according to the analysis result.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
a mobile-end urban geological data fusion and visualization analysis system, comprising: the geological data mining and analyzing system comprises a geological data storage and exchange unit, a multi-source geological data fusion unit, a three-dimensional geological data model visualization unit and a geological data mining and analyzing unit; wherein: the geological data storage and exchange unit is used for managing the data of the mobile terminal and exchanging the data of the mobile terminal and the server terminal; the multi-source geological data fusion unit is used for performing tiling processing on multi-source local vector data, performing fusion, superposition and display on a processing result and on-line data, and achieving the purpose of fusing the multi-source data to the same mobile GIS application; the three-dimensional geological data model visualization unit is used for performing lightweight processing on the three-dimensional geological model, performing progressive grid transmission on the three-dimensional model and rendering the three-dimensional data with multi-strategy cooperation, and achieving the purpose of three-dimensional geological data visualization; and the geological data mining and analyzing unit is used for clustering and mining the geological text by improving a k-means algorithm and evaluating the address model by a high-precision vector grid model. The invention solves the problem that the display technology of large-scale three-dimensional terrain is lack at the mobile end.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a structural diagram of a mobile-end urban geological data fusion and visualization analysis system in embodiment 1 of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve the problems in the prior art, the embodiment of the invention provides a structure diagram of a mobile terminal urban geological data fusion and visualization analysis system.
Example 1
The embodiment discloses a system for fusing and visualizing geological data of a mobile terminal city, as shown in fig. 1, comprising: the geological data mining and analyzing system comprises a geological data storage and exchange unit, a multi-source geological data fusion unit, a three-dimensional geological data model visualization unit and a geological data mining and analyzing unit; wherein:
the geological data storage and exchange unit is used for managing the data of the mobile terminal and exchanging the data of the mobile terminal and the server terminal;
specifically, the geological data storage and exchange unit manages the mobile terminal data, and specifically includes: the method comprises the steps of calculating a tile storage directory and generating a tile database, wherein the storage directory of the tiles is calculated by calculating a plurality of longitudes and latitudes of the upper left corner and the lower right corner, then calculating a tile row column number corresponding to Web mercator projection, taking the row column number of the upper left corner as a start tile index number and the row column number of the lower right corner as an end tile index number, and calculating the middle part through circular traversal.
In this embodiment, the method for generating the tile database includes: and uploading and downloading files between the database and the disk are realized by the drive control of the SQLite database constructed based on the ADO.NET technology, and the tile database is generated. The SQLite can support the mainstream operating system such as Windows/Linux/Unix and the like, and can be combined with a plurality of program languages, such as Tcl, C #, PHP, Java and the like, and an ODBC interface has higher processing speed than two world famous open source database management systems such as Mysql and Postgresql.
In this embodiment, the method for exchanging data between the mobile terminal and the server terminal by the geological data storage and exchange unit includes: standardizing the map packet exchange format of the mobile terminal and designing the data exchange of the mobile terminal; the mobile terminal map packet exchange format specification comprises a grid tile map packet exchange format, a vector tile map packet exchange format, a grid data packet exchange format and a data table index.
The multisource geological data fusion unit is used for performing tiling processing on multisource local vector data, performing fusion, superposition and display on a processing result and on-line data, and achieving the purpose of fusing the multisource data to the same mobile GIS;
10. in this embodiment, a specific method for the multi-source geological data fusion unit to work is as follows: firstly, pre-correlation processing is carried out on multi-source local vector data to realize unification of format conversion and space reference, tiling processing is carried out on result data with unified format conversion and space reference to realize better display effect of mobile terminal data, and meanwhile tiled data is dumped into mobile equipment to prepare data for later-stage data fusion display; secondly, designing a unified online data interface to realize the fusion access of online data; the multi-source difference of the online data can cause a barrier of access between the data, and the uniform online data access interface can shield the multi-source difference of the online data to realize uniform access of the online data; and finally, fusion, superposition and display of the tiling processing result data of the multi-source local vector data and the online data can be realized, and the purpose of fusing the multi-source data to the same mobile GS application system is realized.
The three-dimensional geological data model visualization unit is used for performing lightweight processing on the three-dimensional geological model, performing progressive grid transmission on the three-dimensional model and rendering the three-dimensional data with multi-strategy cooperation, and achieving the purpose of three-dimensional geological data visualization;
in this embodiment, the three-dimensional geological data model visualization unit performs lightweight processing on the three-dimensional geological model, and specifically includes: and cutting the three-dimensional geoscience model, simplifying the three-dimensional model blocks based on the vertex local feature degree, and constructing and restoring the three-dimensional model with the constraint condition. The transmission of the three-dimensional model progressive mesh by the three-dimensional geological data model visualization unit specifically comprises the following steps: and compressing the grid model, encoding the three-dimensional model data after compression, and finally decoding the three-dimensional model data to achieve the purpose of progressive grid transmission of the three-dimensional model. The three-dimensional geological data model visualization unit performs multi-strategy collaborative three-dimensional data rendering, and specifically comprises the following steps: determining a three-dimensional rendering mechanism, and optimizing the three-dimensional rendering mechanism at a mobile terminal, wherein the three-dimensional rendering mechanism is optimized by a grid scheduling strategy, a visual eliminating strategy and a data preloading strategy based on viewpoint distance.
And the geological data mining and analyzing unit is used for clustering and mining the geological text by improving a k-means algorithm and evaluating the address model by a high-precision vector grid model.
In this embodiment, the geological data mining and analyzing unit performs cluster mining on the geological text by improving the k-means algorithm, and the specific steps are as follows: preprocessing the text, clustering the preprocessed text by improving a k-means algorithm, and evaluating a clustering result. The geological data mining and analyzing unit evaluates the address model through a high-precision vector grid model, and specifically comprises the following steps: and constructing a three-dimensional model, extracting the attribute information of the evaluation factor, performing coupling analysis on the two-dimensional data, and reflecting problem factors according to the analysis result.
The utility model discloses a remove end city geological data fusion and visual analytic system, includes: the geological data mining and analyzing system comprises a geological data storage and exchange unit, a multi-source geological data fusion unit, a three-dimensional geological data model visualization unit and a geological data mining and analyzing unit; wherein: the geological data storage and exchange unit is used for managing the data of the mobile terminal and exchanging the data of the mobile terminal and the server terminal; the multi-source geological data fusion unit is used for performing tiling processing on multi-source local vector data, performing fusion, superposition and display on a processing result and on-line data, and achieving the purpose of fusing the multi-source data to the same mobile GIS application; the three-dimensional geological data model visualization unit is used for performing lightweight processing on the three-dimensional geological model, performing progressive grid transmission on the three-dimensional model and rendering the three-dimensional data with multi-strategy cooperation, and achieving the purpose of three-dimensional geological data visualization; and the geological data mining and analyzing unit is used for clustering and mining the geological text by improving a k-means algorithm and evaluating the address model by a high-precision vector grid model. The invention solves the problem that the display technology of large-scale three-dimensional terrain is lack at the mobile end.
It should be understood that the specific order or hierarchy of steps in the processes disclosed is an example of exemplary approaches. Based upon design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not intended to be limited to the specific order or hierarchy presented.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. Of course, the processor and the storage medium may reside as discrete components in a user terminal.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in memory units and executed by processors. The memory unit may be implemented within the processor or external to the processor, in which case it can be communicatively coupled to the processor via various means as is known in the art.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".
Claims (10)
1. The utility model provides a remove end city geological data fusion and visual analytic system which characterized in that includes: the geological data mining and analyzing system comprises a geological data storage and exchange unit, a multi-source geological data fusion unit, a three-dimensional geological data model visualization unit and a geological data mining and analyzing unit; wherein:
the geological data storage and exchange unit is used for managing the data of the mobile terminal and exchanging the data of the mobile terminal and the server terminal;
the multi-source geological data fusion unit is used for performing tiling processing on multi-source local vector data, performing fusion, superposition and display on a processing result and on-line data, and achieving the purpose of fusing the multi-source data to the same mobile GIS application;
the three-dimensional geological data model visualization unit is used for performing lightweight processing on the three-dimensional geological model, performing progressive grid transmission on the three-dimensional model and rendering the three-dimensional data with multi-strategy cooperation, and achieving the purpose of three-dimensional geological data visualization;
and the geological data mining and analyzing unit is used for clustering and mining the geological text by improving a k-means algorithm and evaluating the address model by a high-precision vector grid model.
2. The system for fusing and visually analyzing urban geological data at the mobile end according to claim 1, wherein the managing of the data at the mobile end specifically comprises: the method comprises the steps of calculating a tile storage directory and generating a tile database, wherein the storage directory of the tiles is calculated by calculating a plurality of longitudes and latitudes of the upper left corner and the lower right corner, then calculating a tile row column number corresponding to Web mercator projection, taking the row column number of the upper left corner as a start tile index number and the row column number of the lower right corner as an end tile index number, and calculating the middle part through circular traversal.
3. The system for fusion and visualization analysis of urban geological data on the mobile side according to claim 2, wherein the method for generating the tile database comprises the following steps: NET technology based drive control of the SQLite database is constructed, uploading and downloading of files between the database and a disk are achieved, and a tile database is generated.
4. The system for fusing and visually analyzing urban geological data of the mobile terminal according to claim 1, wherein the method for exchanging the data of the mobile terminal and the server terminal by the geological data storage and exchange unit comprises: standardizing the map packet exchange format of the mobile terminal and designing the data exchange of the mobile terminal; the mobile terminal map packet exchange format specification comprises a grid tile map packet exchange format, a vector tile map packet exchange format, a grid data packet exchange format and a data table index.
5. The system for fusing and visually analyzing urban geological data at the mobile terminal according to claim 1, wherein the specific method for the operation of the multi-source geological data fusion unit comprises the following steps: firstly, pre-correlation processing is carried out on multi-source local vector data to realize unification of format conversion and space reference, tiling processing is carried out on result data with unified format conversion and space reference to realize better display effect of mobile terminal data, and meanwhile tiled data is dumped into mobile equipment to prepare data for later-stage data fusion display; secondly, designing a unified online data interface to realize the fusion access of online data; the multi-source difference of the online data can cause a barrier for accessing the data, and the uniform online data access interface can shield the multi-source difference of the online data to realize uniform access of the online data; and finally, fusion, superposition and display of the tiling processing result data of the multi-source local vector data and the online data can be realized, and the purpose of fusing the multi-source data to the same mobile GS application system is realized.
6. The system for fusing and visually analyzing urban geological data at the mobile terminal according to claim 1, wherein the three-dimensional geological data model visualization unit performs lightweight processing on the three-dimensional geological model, and specifically comprises: and cutting the three-dimensional geoscience model, simplifying the three-dimensional model blocks based on the vertex local feature degree, and constructing and restoring the three-dimensional model with the constraint condition.
7. The system for fusing and visually analyzing urban geological data of a mobile terminal according to claim 1, wherein the transmission of the progressive mesh of the three-dimensional geological data model by the three-dimensional geological data model visualization unit specifically comprises: and compressing the grid model, encoding the three-dimensional model data after compression, and finally decoding the three-dimensional model data to achieve the purpose of progressive grid transmission of the three-dimensional model.
8. The system for fusing and visualizing analysis of urban geological data at a mobile terminal according to claim 1, wherein the three-dimensional geological data model visualization unit performs multi-strategy collaborative three-dimensional data rendering, specifically comprising: determining a three-dimensional rendering mechanism, and optimizing the three-dimensional rendering mechanism at a mobile terminal, wherein the three-dimensional rendering mechanism is optimized by a grid scheduling strategy, a visual eliminating strategy and a data preloading strategy based on viewpoint distance.
9. The system for fusing and visualizing analysis of urban geological data at the mobile terminal of claim 1, wherein the geological data mining and analyzing unit, by improving the k-means algorithm, clusters and mines geological texts comprises the following specific steps: preprocessing the text, clustering the preprocessed text by improving a k-means algorithm, and evaluating a clustering result.
10. The system for fusing and visually analyzing geological data of a mobile terminal city according to claim 1, wherein the geological data mining and analyzing unit evaluates the address model through a high-precision vector grid model, and specifically comprises: and constructing a three-dimensional model, extracting the attribute information of the evaluation factor, performing coupling analysis on the two-dimensional data, and reflecting problem factors according to the analysis result.
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