A real-scene three-dimensional geographic information display system

Abstract

The present invention relates to the field of geographic information display, and in particular to a real-scene three-dimensional geographic information display system. The real-scene three-dimensional geographic information display system includes a GIS database module, a data processing module, a search and import module, a stereo model building module, and a data model display module, wherein the GIS database module for managing real-scene geographic information data and three-dimensional models includes a GIS plane data unit, a measured geographic data unit, and a three-dimensional data unit, and the three-dimensional data unit is established by using a digital elevation model through the GIS plane data unit and the measured geographic data unit; the data processing module for loading and importing geographic information data includes a data analysis unit and a data conversion unit, and the data analysis unit is used to analyze and identify the imported GIS plane data unit, the measured geographic data unit, and the three-dimensional data unit. The real-scene three-dimensional geographic information display system provided by the present invention has the advantages of convenient and accurate three-dimensional display and fast display speed.

Description

Technical Field

[0001] The present invention relates to the field of geographic information display, and in particular to a real-scene three-dimensional geographic information display system. Background Art

[0002] Geographic Information System (GIS) is a comprehensive discipline that is a combination of geography, cartography, remote sensing science and computer science. It is widely used in different fields. It is a computer system used to input, store, query, analyze and display geographic data. GIS is a computer-based tool that can analyze and process spatial information. GIS technology is mainly used in scientific investigation, resource management, development planning, mapping and route planning.

[0003] However, existing geographic information is mostly displayed on a single two-dimensional plane. Therefore, when conducting overall planning, it is impossible to make comprehensive observations and considerations when observing and designing on traditional two-dimensional geographic maps. In addition, the real-life three-dimensional display devices on the market are difficult to fully display complex geographical environments when performing three-dimensional conversion displays.

[0004] Therefore, it is necessary to provide a new real-life three-dimensional geographic information display system to solve the above technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a real-scene three-dimensional geographic information display system with convenient and accurate three-dimensional display and fast display speed.

[0006] The real-scene three-dimensional geographic information display system provided by the present invention comprises: a GIS database module, a data processing module, a search and import module, a three-dimensional model building module and a data model display module;

[0007] The GIS database module for managing real-life geographic information data and three-dimensional models includes a GIS plane data unit, a measured geographic data unit, and a three-dimensional data unit, wherein the three-dimensional data unit is established by using the GIS plane data unit and the measured geographic data unit using a digital elevation model;

[0008] The data processing module for loading and importing geographic information data includes a data analysis unit and a data conversion unit. The data analysis unit is used to analyze and identify the imported GIS plane data units, measured geographic data units and three-dimensional data units, and to judge and filter invalid data. The data conversion unit receives the valid data analyzed and processed by the data analysis unit, converts the valid data into a three-dimensional model of the entity, and uniformly converts it into a format that can be recognized by this system.

[0009] The search import module for real-life specific geographic information retrieval includes a voice assistant unit and a plane map retrieval unit. The voice assistant unit performs voice geographic location retrieval after voice wake-up recognition, and the plane map retrieval unit performs a specified search through the map information of the GIS plane data unit;

[0010] The stereo model building module is used to build and display the three-dimensional real scene of the specified geographical location after the search and import module searches for the specified geographical location information, and includes a three-dimensional import unit and a three-dimensional conversion unit. The three-dimensional import unit is used to import the information data of the specified geographical location, and the three-dimensional conversion unit is used to receive the information data of the three-dimensional import unit and convert it into a virtual three-dimensional real scene;

[0011] The data model display module for displaying and viewing real-scene three-dimensional geographic information includes a head-mounted device unit. The head-mounted device unit uses a head-mounted device adapted to the system to view real-scene three-dimensional geographic information after being connected to the system.

[0012] Preferably, the GIS plane data unit includes GPS map data and Beidou map data.

[0013] Preferably, the measured geographic data unit adopts high-precision aerial photography and real-life map surveying vehicles for comprehensive surveying and mapping, and the three-dimensional data unit establishes a digital elevation model by overlaying and correspondingly analyzing the data collected on-site by the measured geographic data unit on the data of the GIS plane data unit.

[0014] Preferably, the three-dimensional data unit includes all real buildings, green areas, roads and related supporting facilities in the geographical area.

[0015] Preferably, the data analysis unit further includes an automatic iterative update subunit for GIS plane data units.

[0016] Preferably, when converting the real scene into three-dimensional three-dimensional, the three-dimensional conversion unit combines the shooting data of the measured geographic data unit to render and color the established three-dimensional model according to the actual appearance.

[0017] Preferably, after converting the real scene into three-dimensional three-dimensional, the three-dimensional conversion unit can realize the presentation of multiple scale modes in combination with the shooting data of the measured geographic data unit.

[0018] Preferably, the data model display module further comprises a virtual three-dimensional developing unit, and the virtual three-dimensional developing unit displays three-dimensional geographic information after being connected to the system through a 3D developing device adapted to the system.

[0019] Compared with the related art, the real-scene three-dimensional geographic information display system provided by the present invention has the following beneficial effects:

[0020] 1. The present invention provides a real-scene three-dimensional geographic information display system. The GIS database module uses the cooperation of GIS plane data units, measured geographic data units and three-dimensional data units to facilitate the accurate establishment of a three-dimensional database of real-scene geographic information;

[0021] 2. By setting up a data processing module, the data in the three-dimensional database is analyzed and corrected to improve the display accuracy of the three-dimensional geographic information, and the search import module is used to realize rapid positioning search. After the search, the three-dimensional model establishment module and the data model display module are used to perform three-dimensional virtual modeling and viewing display of the geographic information of the specific location. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a block diagram of the real-scene three-dimensional geographic information display system provided by the present invention.

[0023] Numbers in the figure: 100, GIS database module; 101, GIS plane data unit; 102, measured geographic data unit; 103, three-dimensional data unit; 200, data processing module; 201, data analysis unit; 202, data conversion unit; 300, search and import module; 301, voice assistant unit; 302, plane map retrieval unit; 400, three-dimensional model building module; 401, three-dimensional import unit; 402, three-dimensional stereo conversion unit; 500, data model display module; 501, head-mounted device unit; 502, virtual three-dimensional development unit. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0026] See also Figure 1 The embodiment of the present invention provides a real-scene three-dimensional geographic information display system, and the real-scene three-dimensional geographic information display system includes:

[0027] GIS database module 100, data processing module 200, search and import module 300, three-dimensional model building module 400 and data model display module 500;

[0028] The GIS database module 100 for managing real scene geographic information data and three-dimensional models includes a GIS plane data unit 101, a measured geographic data unit 102 and a three-dimensional data unit 103, wherein the three-dimensional data unit 103 is established by using the GIS plane data unit 101 and the measured geographic data unit 102 using a digital elevation model;

[0029] The data processing module 200 for loading and importing geographic information data includes a data analysis unit 201 and a data conversion unit 202. The data analysis unit 201 is used to analyze and identify the imported GIS plane data unit 101, the measured geographic data unit 102 and the three-dimensional data unit 103, and to judge and filter out invalid data. The data conversion unit 202 receives the valid data analyzed and processed by the data analysis unit 201, converts the valid data into a three-dimensional model of the entity, and uniformly converts it into a format that can be recognized by this system.

[0030] The search import module 300 for real scene specific geographic information retrieval includes a voice assistant unit 301 and a plane map retrieval unit 302. The voice assistant unit 301 performs voice geographic location retrieval after voice wake-up recognition, and the plane map retrieval unit 302 performs a specified search through the map information of the GIS plane data unit 101;

[0031] The stereo model building module 400 for building and displaying a three-dimensional real scene of a specified geographical location after the search and import module 300 searches for the specified geographical location information comprises a three-dimensional import unit 401 and a three-dimensional conversion unit 402. The three-dimensional import unit 401 is used to import the information data of the specified geographical location, and the three-dimensional conversion unit 402 is used to receive the information data of the three-dimensional import unit 401 and convert it into a virtual three-dimensional real scene.

[0032] The data model display module 500 for displaying and viewing real-life three-dimensional geographic information includes a head-mounted device unit 501 and a virtual three-dimensional development unit 502. The head-mounted device unit 501 uses a head-mounted device adapted to the system to view real-life three-dimensional geographic information after being connected to the system. The virtual three-dimensional development unit 502 uses a 3D development device adapted to the system to display three-dimensional geographic information after being connected to the system.

[0033] It should be noted that: the entire system establishes a GIS database module 100, and then uses the data processing module 200 to perform data analysis and processing on the data of the GIS database module 100, and then when searching for a specific geographical location to be viewed, the search and import module 300 is used to search and import, and then the three-dimensional model building module 400 continues to build a three-dimensional model of the specific geographical location retrieved, and after the establishment, it is displayed through the data model display module 500, so that viewing is realized to display the real three-dimensional geographical information;

[0034] The GIS plane data unit 101 includes GPS map data and Beidou map data.

[0035] Among them, the measured geographic data unit 102 uses high-precision aerial photography and real-life map vehicles for comprehensive surveying and mapping, and the three-dimensional data unit 103 establishes a digital elevation model by overlaying and correspondingly analyzing the data collected on-site by the measured geographic data unit 102 on the data of the GIS plane data unit 101.

[0036] When converting the real scene into three-dimensional three-dimensional, the three-dimensional conversion unit 402 combines the shooting data of the measured geographic data unit 102 to render and color the established three-dimensional model according to the actual appearance.

[0037] It should be noted that: specifically, the establishment of the GIS database module 100 realizes the construction of three-dimensional model data at a precise location by utilizing the GIS plane data unit 101 containing dual plane geographic data of GPS map data and Beidou map data, combined with the measured geographic data unit 102 of real-scene photos taken by comprehensive surveying and mapping using high-precision aerial photography and real-scene map scene collection vehicles, thereby constructing a three-dimensional data unit 103. Then, the data processing module 200 uses the data analysis unit 201 to analyze and judge the data of the three-dimensional data unit 103, the measured geographic data unit 102 and the GIS plane data unit 101, and filters out invalid geographic information to complete data analysis, and then passes the analyzed and identified data to the data conversion unit 202 to convert and produce it into a standard revised one, and The three-dimensional model data format can be recognized by this system. When it is necessary to display the geographic information of a specific location, a voice search is directly performed through the voice assistant unit 301 or the traditional plane map retrieval unit 302 is used to retrieve the plane geographic location information to complete the retrieval. Then the three-dimensional import unit 401 imports and selects the three-dimensional model of the specific geographic location according to the retrieved specific geographic location. Then the three-dimensional stereo conversion unit 402 performs a virtual conversion on the three-dimensional model and then uploads it to the data model display module 500 including the head-mounted device unit 501 and the virtual three-dimensional development unit 502. Then, after connecting to the system, the real three-dimensional geographic information is viewed using a head-mounted device compatible with this system, or after connecting to the system, the three-dimensional geographic information is displayed using a 3D development device compatible with this system.

[0038] Furthermore, the three-dimensional data unit 103 includes all real-scene buildings, green areas, roads and related supporting facilities in the geographical area, so that after the real scene is displayed using the real-scene three-dimensional geographic information display system, the overall layout planning can be carried out according to the existing buildings, green areas and roads, etc., so that the later planning is more scientific;

[0039] Furthermore, the data analysis unit 201 also includes an automatic iteration and update subunit for the GIS plane data unit 101, so that the existing plane map database is accessed through the network, and the plane map database is automatically read by the automatic iteration and update subunit to realize real-time updating of map data; after converting the real scene into three-dimensional three-dimensional, the three-dimensional conversion unit 402 can realize the presentation of multiple scale modes in combination with the shooting data of the measured geographic data unit 102, so that when the real scene geographic information is displayed, multiple scale modes can be displayed, so that it can be enlarged or reduced, which is convenient for displaying and viewing the real scene geographic information according to needs.

[0040] The working principle of the real-scene three-dimensional geographic information display system provided by the present invention is as follows:

[0041] The whole system establishes a GIS database module 100, and then uses a data processing module 200 to perform data analysis and processing on the data of the GIS database module 100. When searching for a specific geographical location to be viewed, the search and import module 300 is used to search and import the data. Then, the three-dimensional model building module 400 searches for the specific geographical location and then continues to build a three-dimensional model. After the model is built, the model is displayed through a data model display module 500, so that the real scene three-dimensional geographic information can be displayed.

[0042] Specifically, the establishment of the GIS database module 100 realizes the construction of three-dimensional model data at a precise location by utilizing the GIS plane data unit 101 containing dual plane geographic data of GPS map data and Beidou map data, combined with the measured geographic data unit 102 of real-scene photos taken by comprehensive surveying and mapping using high-precision aerial photography and real-scene map scene collection vehicles, thereby constructing a three-dimensional data unit 103. Then, the data processing module 200 uses the data analysis unit 201 to analyze and judge the data of the three-dimensional data unit 103, the measured geographic data unit 102 and the GIS plane data unit 101, and filters out invalid geographic information to complete data analysis. Then, the analyzed and identified data is passed to the data conversion unit 202 to be converted into standard revised data that can be used by this The three-dimensional model data format recognized by the system, when it is necessary to display the geographic information of a specific location, directly perform voice search through the voice assistant unit 301 or use the traditional plane map retrieval unit 302 to retrieve the plane geographic location information, complete the retrieval, and then the three-dimensional import unit 401 imports and selects the three-dimensional model of the specific geographic location according to the retrieved specific geographic location, and then the three-dimensional stereo conversion unit 402 performs a virtual conversion on the three-dimensional model, and then uploads it to the data model display module 500 including the head-mounted device unit 501 and the virtual three-dimensional development unit 502, and then use the head-mounted device compatible with this system, after connecting to the system, to view the real three-dimensional geographic information, or use the 3D development device compatible with this system, after connecting to the system, to display the three-dimensional geographic information.

[0043] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0044] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A real-scene three-dimensional geographic information display system, comprising: GIS database module (100), data processing module (200), search and import module (300), three-dimensional model building module (400) and data model display module (500); The invention is characterized in that the GIS database module (100) for managing real-life geographic information data and three-dimensional models comprises a GIS plane data unit (101), a measured geographic data unit (102) and a three-dimensional data unit (103), wherein the three-dimensional data unit (103) is established by using the digital elevation model through the GIS plane data unit (101) and the measured geographic data unit (102); The data processing module (200) for loading and importing geographic information data comprises a data analysis unit (201) and a data conversion unit (202); the data analysis unit (201) is used to analyze and identify the imported GIS plane data unit (101), the measured geographic data unit (102) and the three-dimensional data unit (103), and to judge and filter out invalid data; the data conversion unit (202) receives the valid data analyzed and processed by the data analysis unit (201), converts the valid data into a three-dimensional model of the entity, and uniformly converts the data into a format that can be recognized by the system; The search import module (300) for real-life specific geographic information retrieval comprises a voice assistant unit (301) and a plane map retrieval unit (302); the voice assistant unit (301) performs voice geographic location retrieval after voice wake-up recognition, and the plane map retrieval unit (302) performs a designated search through map information of a GIS plane data unit (101); The stereo model building module (400) is used to build and display a three-dimensional real scene of a specified geographical location after the search and import module (300) searches for the specified geographical location information, and comprises a three-dimensional import unit (401) and a three-dimensional conversion unit (402), wherein the three-dimensional import unit (401) is used to import information data of the specified geographical location, and the three-dimensional conversion unit (402) is used to receive the information data of the three-dimensional import unit (401) and convert it into a virtual three-dimensional real scene; The data model display module (500) for displaying and viewing real-scene three-dimensional geographic information comprises a head-mounted device unit (501). The head-mounted device unit (501) is used to view the real-scene three-dimensional geographic information after being connected to the system through a head-mounted device adapted to the system.

2. The real-scene three-dimensional geographic information display system according to claim 1, characterized in that: The GIS plane data unit (101) includes GPS map data and Beidou map data.

3. The real-scene three-dimensional geographic information display system according to claim 1, characterized in that: The measured geographic data unit (102) uses high-precision aerial photography and real-scene map collection vehicles to conduct comprehensive surveying and mapping photography, and the three-dimensional data unit (103) combines the data of the GIS plane data unit (101) with the data collected on-site by the measured geographic data unit (102) to perform superposition correspondence analysis and processing to establish a digital elevation model.

4. The real-scene three-dimensional geographic information display system according to claim 3, characterized in that: The three-dimensional data unit (103) includes all real buildings, green areas, roads and related supporting facilities in the geographical area.

5. The real-scene three-dimensional geographic information display system according to claim 1, characterized in that: The data analysis unit (201) also includes an automatic iterative update subunit for the GIS plane data unit (101).

6. The real-scene three-dimensional geographic information display system according to claim 1, characterized in that: When converting the real scene into three-dimensional three-dimensional, the three-dimensional conversion unit (402) combines the shooting data of the measured geographic data unit (102) to render and color the established three-dimensional model according to the actual appearance.

7. The real-scene three-dimensional geographic information display system according to claim 6, characterized in that: After converting the real scene into three-dimensional three-dimensional, the three-dimensional conversion unit (402) can realize presentation in multiple scale modes by combining the shooting data of the measured geographic data unit (102).

8. The real-scene three-dimensional geographic information display system according to claim 1, characterized in that: The data model display module (500) further comprises a virtual three-dimensional development unit (502), and the virtual three-dimensional development unit (502) displays three-dimensional geographic information after being connected to the system through a 3D development device adapted to the system.

Images