18 results about "Digital Earth" patented technology

The invention discloses an intelligent alarm positioning method and system based on an unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicle monitoring and geographic space information processing, and the method comprises the steps: obtaining a video stream in real time based on the unmanned aerial vehicle, and recognizing a risk point location in a video image; a three-dimensional space positioning model is constructed based on telemetry data and lens angle parameters acquired by the unmanned aerial vehicle in real time. And performing three-dimensional coordinate dynamic solution on the risk point location based on a three-dimensional space positioning model to obtain a world coordinate of the risk point location. And determining and outputting an alarm position of the risk point location based on the world coordinates. An automatic detection and artificial interaction dual-channel mechanism is adopted, an alarm target is accurately identified and positioned in an unmanned aerial vehicle real-time video, a corresponding relation between video pixels and geographic coordinates is established through real-time registration of an unmanned aerial vehicle image and the digital earth, a space coordinate conversion error caused by view angle difference is corrected by using a depth map, and an alarm target is accurately identified and positioned. Accurate conversion from video pixel coordinates to world coordinates is realized, and high-precision positioning support is provided for remote monitoring of the unmanned aerial vehicle.

The invention discloses a bionic air-space cooperative atmosphere intelligent regulation and control system and method. The system comprises a twin digital earth, an atmospheric brain, an air-space AI mobile base comprising a troposphere special base and a stratosphere special base, a plurality of macroscopic telescopic pipelines, an array composed of macroscopic intelligent sunshade reflectors, and a multifunctional intelligent micro-unit cluster. A regulation and control strategy is generated through multi-source data assimilation and intelligent strategy optimization, physical states such as temperature and humidity of air masses in a pipeline are actively adjusted through an environment control section in a macroscopic telescopic pipeline, and low-energy-consumption, stepped and directional transportation of cloud water substances is achieved by actively utilizing the chimney effect formed by the atmospheric environment; controllable adjustment of solar radiation input is achieved through dynamic management of the intelligent sunshade reflector array. The system has four operation modes which can be evolved according to technical capability stages from macroscopic direct intervention to global intelligent collaboration, and is configured with a module recovery and platform stability anchoring mechanism so as to realize emergency intervention on disastrous weather.

This application discloses a plug-in-based method and apparatus for loading network digital earth data, including acquiring network digital earth data and user data; classifying the network digital earth data to obtain default data types and acquiring custom data types corresponding to the user data; writing default data plugins for the default data types and custom data plugins for the custom data types according to pre-defined data plugin writing specifications; and uploading the default data plugins and custom data plugins to a server so that the server adds the default data plugins and custom data plugins to a data plugin list. This application, based on data plugin writing specifications, writes data plugins corresponding to data types and uses a data plugin mechanism to dynamically load data, which can meet the needs of users to customize data plugins and improve the flexibility and breadth of data loading methods in the network digital earth system.

The invention discloses a digital earth roaming animation generation method, tool and device based on an unreal engine, and relates to the technical field of geographic information systems.The digital earth roaming animation generation method comprises the steps that an observation target of a digital earth roaming animation is determined, a preset manipulator is adopted, the observation target serves as the center, a camera is controlled to move, and the digital earth roaming animation is generated; the method comprises the steps of obtaining a key frame corresponding to each observation target, editing each key frame by adopting a preset editing panel to obtain sub-animations, connecting all the sub-animations to generate an initial animation, and interpolating every two sub-animations in the initial animation by adopting a preset interpolation algorithm to generate the digital earth roaming animation. According to the invention, the technical problem of low continuity of the digital earth roaming animation generated in the prior art is solved.

The invention discloses a low-altitude economic multi-source heterogeneous data fusion management system based on the digital earth, and relates to the technical field of airspace management. Comprising a data receiving module used for receiving and analyzing multi-source heterogeneous real-time streaming data; the space-time cube engine module is used for carrying out space-time modeling on a low-altitude management airspace through voxelization construction, dynamic maintenance and intelligent data mapping under a geocentric coordinate system of the digital earth; the parallel fusion calculation module is used for carrying out parallel calculation on density calculation, conflict detection and environmental influence analysis tasks through a distributed cluster based on a space-time cube and outputting a management situation and an alarm event; the digital earth visualization and service module is used for generating a dynamic situation map; by constructing the dynamic space-time cube, the technical problems that multi-source data fusion is difficult and situation awareness is not visual in the low-altitude environment are solved, and intelligent management of low-altitude economy is achieved.

The application discloses a kind of based on spatial data mining and geological constraint seismic activity fault model construction method, system, equipment and medium.The method is first arranged and analyzed to seismic data, extracts minimum complete subdirectory;Using improved mean shift algorithm for spatial clustering, identify each active fault corresponding small earthquake cluster;Subsequently, each fault cluster is three-dimensional slice, and least square method fitting is generated fault interpretation line;With interpretation line as foundation, initial seismic activity fault three-dimensional model is constructed, and is optimized by multi-source geological constraint, and active fault three-dimensional fine model is obtained;Finally, the model is integrated with digital earth spatial registration.This application can realize the whole process automation and quantization from seismic data analysis to active fault three-dimensional fine model construction and application, improve the objectivity, efficiency, precision and reliability of model construction, provide important technical support for seismic disaster risk assessment, active fault detection.

This invention provides a data synchronization method, apparatus, electronic device, and storage medium based on a situational digital earth, belonging to the field of data synchronization technology. The method includes: acquiring data to be synchronized; wherein the data to be synchronized includes business layer result data, network layer connectivity data, and information layer flow data; determining related data belonging to the same business task in the data to be synchronized based on a business task identifier; wherein the business task identifier is generated when the business is created; and performing timestamp alignment processing on the related data to obtain synchronized data. This invention, by performing timestamp alignment processing on related data for the same business task, ensures that the three layers of data with the same business task identifier are not affected by data from other tasks, which helps reduce data synchronization errors and thus improves the synchronization display effect of multi-layer data in a situational digital earth.

The application belongs to the technical field of data storage, and discloses a distributed digital earth data storage method and system, which comprises the following steps: obtaining digital earth data; preprocessing and cutting the digital earth data to obtain fragmented data; performing space-time coding on the fragmented data to obtain coded fragmented data; constructing a distributed hierarchical storage space and storing the coded fragmented data in the corresponding distributed hierarchical storage space; and constructing an index of the fragmented data in the distributed hierarchical storage space. The storage method can improve the loading speed of the digital earth data. The space-time coding of the fragmented data makes each piece of fragmented data have high space-time correlation, which can improve the speed of continuous space-time range data and further improve the loading speed of the digital earth data. Furthermore, the construction of the distributed hierarchical storage space can reduce the storage cost of the data and improve the storage reliability of the data.

The invention discloses a holographic digital earth sand table construction method, a holographic digital earth sand table construction device and electronic equipment, and relates to the technical field of digital earth visualization, and the construction method comprises the following steps: constructing a digital earth system by adopting a preset plug-in in an unreal engine, decomposing a three-dimensional scene of the digital earth system, and obtaining a three-dimensional scene of the digital earth system; the method comprises the steps of obtaining a background rendering picture and a holographic rendering picture, determining a to-be-displayed interface picture, decomposing the interface picture to obtain a background interface picture and a holographic interface picture, generating a bottom background image and a back background image based on the background rendering picture and the background interface picture, and generating a back background image based on the holographic rendering picture and the holographic interface picture. And generating a holographic window image, and displaying the bottom background image, the rear background image and the holographic window image by adopting holographic display equipment so as to carry out holographic display of the digital earth sand table. According to the invention, the technical problem that holographic display of a digital earth sand table with a real physical depth of field cannot be realized indoors in the prior art is solved.

The application discloses a loading method and device of a digital earth, apparatus and a storage medium. The method comprises the following steps: acquiring the distance from a camera to a target tile and the interval corresponding to the distance; the interval is in a positive correlation with the distance; each interval corresponds to a level of tile, and the level of the tile is in a positive correlation with the accuracy of the tile; in response to the interval corresponding to the distance from the camera to the target tile changing from the nth interval to the nth-p interval, using the target tile of the nth+p level in the storage space to cover the target tile of the nth level; wherein n-p is a positive integer, n is an integer greater than or equal to 3, and p is an integer greater than or equal to 2. The application embodiment omits the covering process of the intermediate level tile, does not need the storage space of the apparatus to store all levels of tiles, reduces the requirement of the digital earth loading on the hardware apparatus, improves the display effect of the digital earth for the apparatus with relatively low storage space.

1. Name of the product in this design: Graphical User Interface for Computers with StarMap Cloud Developer Platform Data. 2. Purpose of this design: This design is used to run the StarMap Cloud Developer Platform processing program and display data information. The display screen panel is used with a computer. 3. The key design features of this product are shown in Figure 3, which illustrates the changing state of the interface. 4. Images or photos that best illustrate the design points: Interface change state diagram 3. 5. As is customary in computer design, rear view, left view, right view, top view, and bottom view are omitted. 6. Purpose of the graphical user interface: Used for data access, algorithm invocation, page design, data model design, logic orchestration and application deployment in the TuYun developer platform program. 7. The area of ​​the graphical user interface in the product: the entire area of ​​the computer screen. 8. Human-computer interaction method of graphical user interface: Users can perform different functions by clicking different areas or icons displayed on the interface with the mouse. 9. Description of the changing states of the graphical user interface: The main view is the initial page of the developer platform. Click the "Digital Earth Component" in the left toolbar, click "Earth" and drag it to the canvas, and set the percentage full screen from the top toolbar. The information display method is shown in Figure 1, which shows the interface change state. Based on state diagram 1, click "Built-in Resources" in the left toolbar, then click "Interface" and "Background Image" in sequence and drag them to the canvas. Click the basic toolbar components, select "Text" and add it to the canvas. Edit the text to "Digital Earth". Adjust the size and position of the text and background image. The information display method is shown in state diagram 2. Based on state diagram 2, click "Chart Components" in the left toolbar, then drag "Column Chart" → "Stacked Bar Chart", "Pie Chart" → "Gallery Chart" to the canvas and adjust their positions. The information display method is shown in state diagram 3. Based on state diagram 3, click "Plugins" in the left toolbar, drag "Plotting" to the canvas and adjust its position. Its information is displayed as shown in state diagram 4 of the interface change. Based on state diagram 4, clicking "Preview" in the upper right corner will display information as shown in state diagram 5. Based on state diagram 5, click "New", "Basic Element", "Point", "Scan Wave" in sequence and add it to the target location on the middle map. The information is displayed as shown in state diagram 6.

The invention discloses a dynamic fusion analysis method and system for space-time action trajectory data and a digital earth. The method comprises the following steps: performing metadata extraction and multi-definition transcoding on original video data, and embedding trajectory data; performing timestamp dynamic allocation and three-dimensional coordinate conversion on the trajectory data; establishing accurate space-time alignment of a video frame and a track point, and realizing millisecond-level matching and linkage of a video, a vehicle position and a digital earth visual angle through time axis hard synchronization, track interpolation and dynamic visual angle synchronization; and performing driving behavior analysis based on the synchronized trajectory data. According to the method, the problems of difficulty in dynamic association of track data, maps and videos and process fragmentation are solved, full-process automation and high-precision space-time synchronization are realized, and powerful technical support is provided for scenes such as driving behavior analysis and accident reconstruction.

This invention relates to a method for visualizing coverage areas, specifically a method for visualizing the coverage area of ​​a cluster of BeiDou navigation satellites. The method includes: S1, acquiring ephemeris data; S2, calculating the nadir points of the BeiDou navigation satellites; S3, calculating all coverage boundary points of the BeiDou navigation satellites, fitting the data to form the coverage area of ​​the BeiDou navigation satellites; S4, obtaining the coverage areas of all BeiDou navigation satellites; S5, dividing the digital file of the Earth into multiple grid regions; S6, obtaining the coverage amount of each grid region; and S7, coloring the three-dimensional digital Earth according to the coverage amount of each grid region based on a mapping relationship, thereby visualizing the coverage area of ​​the cluster of BeiDou navigation satellites. This invention combines the calculation of the coverage area of ​​clustered BeiDou navigation satellites with three-dimensional visualization, enabling the calculation and visualization of the coverage area of ​​clustered BeiDou navigation satellites within any given time period, which helps in estimating the orbital trajectory of the clustered BeiDou navigation satellites.

The invention discloses an urban infrastructure system simulation system and method based on a digital earth platform, and the method comprises the steps: breaking barriers among infrastructure simulation models through a joint simulation coordination engine, and achieving the cross-domain co-simulation and time synchronization; the fusion problem of multi-source heterogeneous data is solved through a unified space-time big data management platform; and abstract simulation data and a real geographic space are closely combined through a digital earth visualization engine, so that live-action and immersive visualization of a simulation process and a simulation result are realized. According to the invention, 'sand table deduction 'can be carried out on an urban infrastructure system, potential multi-dimensional influences of emergencies or major policies are effectively evaluated, and scientific decision support is provided for urban planning, emergency management and the like.

This invention provides a method and system for converting unstructured drawings into high-precision digital earth assets. The method includes: reading unstructured drawings and using a large-scale image recognition model to identify geographic features in the unstructured drawings, outputting a preliminary structured data stream; performing multi-level parsing on the preliminary data stream, outputting a set of planar coordinates and feature topological relationships; converting the planar coordinates into latitude and longitude coordinates, and performing spatial correction by combining elevation data and environmental parameters to obtain corrected latitude and longitude coordinates; optimizing the error of the corrected latitude and longitude coordinates using the least squares method or spline interpolation, outputting standardized geographic data; importing the standardized geographic data into a target digital earth platform, where the target digital earth platform performs data conversion on the standardized geographic data and generates a visualization file conforming to the OGC standard for display. This invention achieves intelligent extraction, conversion, and integrated display of digital earth spatial data from drawing images.

The invention relates to the technical field of unmanned aerial vehicle aerial photogrammetry, and discloses a slope and slope orientation-considered complex mountain area unmanned aerial vehicle photography data acquisition method and device, and the method comprises the steps: S1, obtaining initial terrain point cloud data of a target measurement area, and generating digital earth surface model raster data through interpolation operation; s2, calculating a neighborhood pixel elevation difference based on digital earth surface model raster data to obtain topographic parameters such as a gradient and a slope direction, and calculating unmanned aerial vehicle parameters such as a flight height, a course angle, a camera main optical axis direction and a pan-tilt pitch angle in combination with preset reference parameters; and S3, generating an unmanned aerial vehicle route and a waypoint command based on the parameters. According to the method, the digital earth surface model is fused with gradient and direction analysis, adaptive matching of unmanned aerial vehicle parameters and the terrain is achieved, it is ensured that the principal optic axis of the camera is perpendicular to the slope, the problem of data vulnerabilities in complex mountainous areas is effectively solved, data redundancy is reduced, and the precision and efficiency of photography data collection are improved.

The application discloses a geological and geomorphologic analysis and exploration method and system based on remote sensing technology, and belongs to the field of remote sensing application. The method comprises the following steps: collecting images of a target area through an exploration terminal to obtain a remote sensing image set, performing image preprocessing, extracting data information in the remote sensing preprocessed image set to obtain a geological and geomorphologic data set, obtaining elevation data of the target area through a digital earth platform, correcting the geological and geomorphologic data set to obtain a corrected data set, performing feature extraction according to the corrected data set and the remote sensing preprocessed image set to obtain a feature set, inputting a regional normalization model for analysis, splicing images in the remote sensing preprocessed image set according to relative position labels to obtain a target area remote sensing image. The technical problems of low geological and geomorphologic exploration precision and inaccurate image processing result are solved. The technical effect of improving the geological and geomorphologic exploration precision and image processing accuracy through remote sensing technology is achieved.

The application discloses an artificial intelligence-based digital earth data analysis method and device, and relates to the technical field of data analysis. The method comprises the following steps: constructing a digital earth data analysis model based on an artificial intelligence deep learning algorithm; collecting multi-source digital earth data, and performing space-time registration and normalization processing on the multi-source digital earth data to obtain a space-time data cube; inputting the space-time data cube into the digital earth data analysis model to perform digital earth data analysis, obtaining a digital earth data analysis result, and performing visualization. The application solves the problems of large amount of calculation, weak space relationship modeling capability and lack of physical constraints in the prior art.