24 results about "Topographic profile" patented technology

The invention relates to the technical field of hydroelectric engineering geological survey, in particular to a rock slope stability analysis method. Comprising the following steps: S1, drawing a slope engineering geological sketch map; s2, collecting broken stones and block stones accumulated at the slope angle of the side slope to obtain a broken stone and block stone shape graph; s3, restoring the damaged area of the side slope to obtain a terrain profile map before the damaged area of the side slope is damaged; s4, on the basis of the restored terrain profile map and the slope engineering geological sketch map, determining a specific crack causing damage to the slope damage area; s5, in the slope engineering geological sketch map determined in the step S1, screening out all fractures which are parallel to the fractures determined in the step S4 and form groups, and marking the fractures in the slope engineering geological sketch map; s6, according to all the cracks marked in the slope engineering geological sketch map in the step S5, a slope unstable area is divided; and the potential destructiveness accuracy of the side slope rock is improved.

The invention relates to the technical field of data processing, in particular to a geological terrain profile automatic generation method, which comprises the following steps of: performing anomaly detection through data of all stratums of all drill holes, acquiring suspected abnormal stratums of all the stratums, analyzing differences between data anomaly characteristics caused by stratum pinching and stress interference in the drill hole data, and generating a geological terrain profile according to the differences. The data anomaly of each drill hole is constructed according to the non-uniformity of the stratum space distribution and the non-uniformity of the stratum space distribution, and the anomaly data authenticity of the data of a single drill hole is judged; removing the drilling data with relatively large data anomaly, and performing interpolation processing on all the drilling data by adopting a Kriging interpolation method so as to automatically generate a geological terrain profile map of the target area; the problem that real drilling data is easy to remove due to the fact that the abnormal value of the drilling data is detected only through a threshold value judgment mode in a traditional method is solved, the authenticity of the data interpolated through the Kriging interpolation method is improved, and the generation accuracy of the geological and terrain profile map is improved.

The present application relates to the technical field of data processing, and specifically to a method for automatically generating geological and topographic profiles, the method comprising: performing anomaly detection on data of all strata in all boreholes to obtain suspected abnormal strata in each stratum, analyzing the differences between data anomaly characteristics caused by stratum pinch-out and stress interference in the borehole data, as well as the unevenness of stratum spatial distribution, constructing data anomaly of each borehole, and judging the authenticity of abnormal data of individual borehole data; eliminating borehole data with large data anomaly, and interpolating all borehole data using the Kriging interpolation method, thereby automatically generating a geological and topographic profile of the target area; solving the problem that traditional methods detect outliers in borehole data only through threshold judgment, which easily eliminates real borehole data, thereby improving the authenticity of data interpolated using the Kriging interpolation method and the accuracy of generating geological and topographic profiles.

The invention of the present application intends to provide a completed-work information processing system that can generate terrain profile data that is easy to associate with the contents of work and a work area, on the basis of working history data that can be acquired in work execution by a work machine. For this purpose, a computation device computes movement loci of a work device when the work device is executing work of the ground and acquires working information from a working information acquiring device when determining that the work device is executing the work of the ground, records data in which the working information is associated with the movement loci of the work device, as the working history data, and outputs the terrain profile data to which the working information is added, with use of a movement locus assumed to be the current terrain profile among the movement loci of the work device included in the working history data and the working information associated with the movement locus assumed to be the current terrain profile.

This invention discloses a method for registering forest point clouds from UAV-LiDAR during leafy and leafless periods, relating to photogrammetry, remote sensing mapping, and forest resource monitoring. The method extracts ground points from two phases of UAV-LiDAR point clouds, constructs multi-directional radial topographic profiles, and extracts local profile segments using a sliding window. It calculates a comprehensive similarity based on trend consistency, robustness to local shape deformation, and curvature similarity, and selects stable matching segments by combining radial distance and topographic undulation amplitude consistency constraints. Three-dimensional corresponding point pairs are generated from the matching segments, and the initial rigid body transformation is solved using SVD. The registration is then optimized using ICP to obtain a multi-temporal fused point cloud. This invention can achieve reliable registration under conditions of phenological differences, missing vegetation structure, and initial biases, providing support for the reconstruction of three-dimensional forest structures and refined resource monitoring.

The invention discloses an intertidal zone terrain profile extraction method based on time-average video images. The method comprises the following steps: acquiring an intertidal zone continuous video image, and correcting the intertidal zone continuous video image to a plane geographic coordinate system through a coordinate conversion model; establishing single-valued mapping between ground coordinates and image plane coordinates, and back-projecting pixels of the video image to a unified geographic grid; constructing an affine matrix of a single-pixel image column based on single-valued mapping, and embedding a geographic direction vector of a target section into spatial transformation of the image column; intercepting an image column sample of the image at each moment in the video image according to a preset pixel width along the target section direction; identifying the position of a waterline breakpoint in the image column by using a neural network model; and carrying out waterline elevation calculation and the like by referring to a local slope model based on a balanced section. According to the method, the high-frequency characteristics of video monitoring and the priori knowledge of the physical model are fused, so that the efficiency and precision of profile extraction are effectively improved while the data continuity is ensured.

A work machine management system includes a terrain profile data generating system configured to generate terrain profile data representing a finished shape produced by a work device of a work machine, on the basis of a sensing result of a posture sensor that senses a posture of the work machine. The terrain profile data generating system computes a trajectory of the work device on the basis of the posture of the work machine, computes information about a plane constituting the trajectory of the work device on the basis of the trajectory, generates construction history data by recording positional information of the trajectory of the work device and the information about the plane constituting the trajectory for each of a plurality of grids obtained by dividing a predetermined area in a lattice manner, and generates the terrain profile data on the basis of the positional information of the trajectory of the work device and the information about the plane constituting the trajectory, the positional information and the plane information being included in the construction history data.

A method for detecting subsurface damage of small curved surface parts based on small-spot magnetorheological polishing, which relates to the field of ultra-precision machining. To solve the problems that the detection accuracy of existing methods is greatly affected by the resolution and motion accuracy of the system and the detection accuracy is relatively low. The method includes the following processes: performing single-point polishing on the small curved surface part, and etching the small curved surface part; obtaining the three-dimensional topographic profile of the polished spot on the etched small curved surface part, and intercepting its two-dimensional profile to obtain the cross-sectional profile of the polished spot, where the cross-sectional profile of the polished spot includes a grinding area and a polishing area; using a microscope to observe the microscopic surface topography of the polished spot after etching, and measuring the horizontal distance D from the position where the subsurface crack disappears at the polished spot to the polishing boundary line; reconstructing the fitting contour curve of the removed material, calculating the shortest distance from the position where the crack disappears on the cross-sectional profile of the polished spot to the fitting contour curve of the removed material, and obtaining the result of the subsurface damage depth.

The invention relates to the technical field of unmanned driving, in particular to a vector map updating method, system and device in an unmanned mine scene and a medium. The method comprises the following steps: firstly, preprocessing original point cloud data according to the current pose of the unmanned vehicle; filtering a dynamic object, and calculating a terrain contour; and finally, performing Boolean operation on the terrain contour and the high-precision map to obtain incremental update of the high-precision map, thereby realizing light-weight and high-efficiency update of the high-precision map. The problem that the updating efficiency is low when a vehicle contour scheme is adopted is solved. The updating range is only limited to the measurement distance of the laser radar, and a large-range map can be updated through one-time calculation; the calculation is simple and the calculation efficiency is high.

Embodiments of the present disclosure disclose a method, apparatus, device, and readable medium for identifying ignition points based on a forest environment. A specific implementation of the method includes: obtaining device information of an ignition point identification device corresponding to an alarm message; determining second elevation data corresponding to the alarm message according to device identification area information and first elevation data; determining relative direction information corresponding to the alarm message according to the device identification area information and the second elevation data; generating ignition point coordinate information according to the second elevation data and the relative direction information; obtaining a topographic profile model corresponding to the ignition point identification information; performing correction processing on the ignition point coordinate information according to the topographic profile model to generate corrected ignition point coordinate information; controlling an associated intelligent fire extinguishing device to perform fire extinguishing processing on the area corresponding to the corrected ignition point coordinate information. This implementation avoids incorrect fire extinguishing positions and reduces waste of forest resources.

The invention discloses a near-surface geological section generation method and device, and the method comprises the steps: extracting a stratum boundary line and stratum occurrence vector point data of a target near-surface geological region based on a satellite remote sensing image and a digital elevation model; elevation information is obtained from the digital elevation model data, and a topographic profile contour line containing a topographic relief curve and a downward extension copy line thereof is generated; carrying out space intersection on the topographic profile contour line and the stratum boundary line to generate an extension stratum node under the contour line; matching corresponding stratum occurrence vector point data for the extended stratum nodes; calculating the downward extension direction of the stratum according to the inclination angle and the inclination angle in the matched stratum occurrence vector point data, and generating a target near-surface stratum unit; and automatically filling geologic symbols and colors according to the name of the target near-surface stratigraphic unit, and drawing the geological profile of the target near-surface geological area according to a preset proportion. The method is used for improving the drawing precision and drawing efficiency of the near-surface address profile.

This disclosure proposes a method, apparatus, electronic device, and storage medium for determining saddle regions. The method includes: acquiring a digital elevation model of a geographic region, wherein the digital elevation model includes multiple initial grids; determining N*N initial grids as target grid regions, with each initial grid as a center grid, where N is an odd number greater than 1; determining four initial topographic profile lines along four axes of symmetry of the target grid regions; determining the curve parameters of each initial topographic profile line, wherein the curve parameters are used to describe the slope change of the initial topographic profile line when passing through the center grid; and determining whether the local geographic region corresponding to the initial grid is a saddle region based on the curve parameters of each initial topographic profile line. Thus, it is possible to accurately determine whether a geographic region is a saddle region, effectively improving the determination effect of saddle regions.

1. Name of the product in this design: Graphical User Interface for Topographic Profile Analysis of Electronic Equipment. 2. Purpose of this design: An electronic device. 3. The key design feature of this product is its graphical user interface. 4. Images or photos that best illustrate the design points: Interface change state diagram 5. 5. Purpose of the graphical user interface: The graphical user interface of this product is used by users to select a profile area within the target area, perform profile analysis on the geomorphological features of the target area, and obtain geospatial data. 6. Human-computer interaction method of graphical user interface: The main view is the main interface for users to enter the geomorphological feature profile analysis; clicking the button to the right of "Select Analysis Location" in the upper left corner of the main view will jump to the interface change state diagram 1; clicking a location in the geomorphological map of interface change state diagram 1 will jump to the interface change state diagram 2; dragging the cursor in the geomorphological map of interface change state diagram 2 will jump to the interface change state diagram 3; double-clicking a location in the geomorphological map of interface change state diagram 3 will jump to the interface change state diagram 4; hovering the cursor over a location in the data analysis chart at the bottom of interface change state diagram 4 will jump to the interface change state diagram 5. 7. Other situations requiring explanation: The gray-covered areas in the interface are content screens and are not within the scope of protection of this design; the usage status of the main view can be referred to the main view reference diagram, and the usage status of interface change state diagrams 1 to 5 can be referred to the interface change state reference diagrams 1 to 5 in sequence.

The invention discloses a geocoding method and device for an SAR image and a storage medium. The geocoding method comprises the steps of generating a first terrain contour map and a plurality of first remote sensing images in a corresponding coverage area based on the SAR image; determining a target pixel point in the SAR image, and determining a first ground area corresponding to the target pixel point according to azimuth information corresponding to the target pixel point and the first terrain contour map; determining a plurality of second ground areas corresponding to each pixel point on each first remote sensing image, and determining a target pixel point corresponding to the first ground area on each first remote sensing image based on the plurality of second ground areas and the first ground area; pixel values, corresponding to the target pixel points, on the first remote sensing images are determined, and pixel value vectors corresponding to the target pixel points are generated; and inputting the pixel value vector into the SAR prediction model, and outputting a first intensity value. The technical effect that the researchers can conveniently monitor the terrain is achieved.

The application provides a low-orbit satellite communication shielding prediction method and system, and relates to the technical field of low-orbit satellite communication.The method comprises the following steps: acquiring a future trajectory sequence of a low-orbit satellite and a future trajectory sequence of a ground terminal, and topographic data and meteorological data of a region covered by the low-orbit satellite; generating a communication link space-time trajectory according to the future trajectory sequence of the low-orbit satellite and the future trajectory sequence of the ground terminal; performing space-time binding on the topographic data and the meteorological data to generate a space-time correlation matrix; determining the sampling point distribution and the sampling step of the topographic profile of the region covered according to the space-time correlation matrix, and combining an atmospheric refraction correction model and a meteorological attenuation model to perform dynamic shielding prediction, so as to obtain a shielding prediction result of the low-orbit satellite in a preset future time period.The application significantly improves the accuracy and timeliness of low-orbit satellite communication shielding prediction through multi-source data fusion, dynamic space-time trajectory generation, space-time binding, adaptive sampling and a comprehensive attenuation model.

The application provides an ice-water accumulation body bank collapse prediction method based on the limit equilibrium method, relates to the technical field of reservoir safety, and obtains a complete topographic profile by topographic surveying on an ice-water accumulation body slope, constructs an MP model in combination with the mechanical parameters of the ice-water accumulation body slope, analyzes the stability of the ice-water accumulation body slope in the MP model by the limit equilibrium method, obtains an analysis result, and if the part with the stability less than 1 in the analysis result is located on water, the part with the stability less than 1 located on water is accumulated under water according to the underwater stability slope angle, bank collapse is simulated, a new topographic profile is obtained, the MP model is reconstructed, iteration is carried out, until the ice-water accumulation body slope cannot collapse, the overall width of the part with the stability less than 1 located on water is counted as the predicted bank collapse width, the problem that the existing ice-water accumulation body bank collapse prediction error is large is solved, and the application is suitable for ice-water accumulation body bank collapse prediction.

The application discloses a kind of based on laser radar data correction InSAR DEM plane position method, device, equipment and medium, method is: obtaining InSAR data and interference processing, generates DEM;Obtain spaceborne laser radar data and combine DEM corresponding ground point, with spaceborne laser radar same track strip as unit, based on the relative error of the length of two terrain profiles projection Registration, obtain the offset of DEM relative to spaceborne laser radar data;Based on the offset of registration plane, utilize least square adjustment method to construct the offset polynomial model of DEM in longitude, latitude direction;Offset polynomial model is carried out to DEM by geometric transformation, finally realizes plane position correction.The application only uses spaceborne laser radar data to carry out plane position correction to DEM, overcome the problem that existing method relies on existing terrain product.

The invention belongs to the technical field of marine surveying and mapping, discloses an airborne LiDAR sounding point cloud filtering method and system for shallow sea reef terrain, and aims to solve the problems that a coastal zone reef beach area is large in topographic relief and complex in water environment, and excessive filtering and residual noise points are prone to occurring in a traditional filtering algorithm. The invention provides a multi-stage and multi-feature constraint filtering method and a multi-stage and multi-feature constraint filtering system. Accurate identification and elimination of sea surface point clouds are realized based on DBSCAN clustering of echo intensity and point cloud density constraint and triangulation network broken line segmentation; secondly, a robust statistical model containing spatial distance, normal consistency, plane residual error and curvature characteristics is utilized, and a Mahalanobis distance is combined to optimize an SOR filter, so that discrete noisy points of a water body are effectively removed; and finally, performing direction slicing and curve fitting on the reef terrain point cloud by adopting a progressive profile analysis method to realize terrain contour correction and detail recovery. According to the method, the phenomena of wrong filtering and filtering leakage can be remarkably reduced in a complex shallow sea environment, and the integrity and continuity of terrain point cloud are improved.

The application discloses a kind of hydropower engineering topographic map expression method, belong to topographic map measurement and expression technical field, this method includes S1, obtains and contains schematic symbol using traditional surveying and mapping method generation digital topographic map;S2, the complex region corresponding to schematic symbol is scanned three-dimensionally, and the three-dimensional point cloud data obtained;S3, to three-dimensional point cloud data filtering processing, extract the real surface topographic data of complex region;S4, real surface topographic data is embedded in the position of schematic symbol in digital topographic map, forms fusion digital topographic map;S5, based on real surface topographic data in fusion digital topographic map, generates topographic profile information for geological analysis or engineering design.The application fills the region of schematic symbol in traditional topographic map as the region filled by real surface point cloud data after three-dimensional scanning and filtering processing, realizes the quantifiable, calculable expression of complex region topography such as precipice, abruptness, cliff etc.

Methods and systems for generating an optimal grading design are disclosed. The method performed by the system includes generating a topography profile of a plot of land. The method includes appending a plurality of boundaries to the topology profile. The method includes determining whether a grading design satisfies usage constraints based, at least in part, on the topography profile and a usage map. Herein, the usage map includes a plurality of usage areas and corresponding usage parameters. The method includes accessing a cost profile including a plurality of individual costs associated with respective land restructuring operations of the plot of land. The method includes generating a modified topography profile based on the topography profile and the cost profile associated with the respective land restructuring operations of the plot of land.

A method for identifying edges of curbs in an environment of a mobile platform. The method includes: providing at least one optical image of the environment of the mobile platform; determining linear structures in the at least one optical image; providing a topographic profile of a ground surface of the environment of the mobile platform; projecting the linear structures into the topographic profile of the ground surface; verifying the edges of curbs by examining, on both sides of the projected linear structures, the topographic profile for altitude jumps corresponding to a curb structure; connecting the verified altitude jumps in order to identify the edges of the curbs.

An optical interferometry system and associated methods are provided for interferometric measurement of topography of a sample region having a first direction in which a topographic metric is relatively uniform compared with an orthogonal direction of higher variation. A sensor having a two-dimensional array of pixels receives radiation including interference between reflections from the sample and from a tilted reference mirror. The tilt introduces, at the sensor, a gradient direction of the optical path difference (OPD), such that lines of pixels along the gradient direction correspond to positions of the sample region aligned in the direction of relative constancy. From a single captured image, an interferogram of OPD versus intensity is generated for each such line of pixels. A processor then calculates, from the interferogram, the corresponding topographic metric, providing a topographic profile of the sample region without scanning motion of the mirror or sample.

The invention relates to the technical field of image processing, in particular to a territorial geographic information surveying and mapping method and system. The method comprises the following steps: carrying out remote sensing image acquisition processing and image preprocessing on a territorial geographic information to-be-surveyed area to obtain a remote sensing standard image of the territorial geographic information to-be-surveyed area; performing image spectral analysis and spectral band area division analysis on the remote sensing standard image of the land geographic information area to be detected to obtain an image of a land water body area to be detected and an image of a land vegetation area to be detected; performing terrain contour feature point cloud analysis and three-dimensional space model reconstruction on the land water body to-be-measured area image and the land vegetation to-be-measured area image to generate a land to-be-measured area ground feature three-dimensional reconstruction space model; and performing terrain contour superposition correction and visual surveying and mapping processing on the terrain three-dimensional reconstruction space model of the land to-be-measured area to generate a land geographic information visual surveying and mapping topographic map. According to the invention, accurate surveying and mapping and image analysis of geographic information can be realized.

Methods and systems for generating an optimal grading design are disclosed. The method performed by the system includes generating a topography profile of a plot of land. The method includes appending a plurality of boundaries to the topology profile. The method includes determining whether a grading design satisfies usage constraints based, at least in part, on the topography profile and a usage map. Herein, the usage map includes a plurality of usage areas and corresponding usage parameters. The method includes accessing a cost profile including a plurality of individual costs associated with respective land restructuring operations of the plot of land. The method includes generating a modified topography profile based on the topography profile and the cost profile associated with the respective land restructuring operations of the plot of land.