15 results about "Mapping techniques" patented technology

The invention discloses an automatic administrative boundary fusion charting method and a meteorological charting method based on a python language. Belongs to the technical field of meteorological charting, and particularly relates to the cross technical field of meteorological data processing and geographic information system visualization. The method starts with the construction of a multi-scale adaptive boundary fusion map, so as to solve the problems of cross-scale (such as province-to-village) precision faults and large interpolation errors of complex terrains, and achieve a cross-level administrative division boundary seamless aggregation technology (village level-town level-county level-province level). Therefore, the problem that precision is easy to lose when cross-scale conversion (such as from province to village) is carried out during meteorological mapping is solved.

The application relates to the technical field of remote sensing mapping, in particular to a remote sensing mapping method for a karst rocky desertification treatment grassland, which comprises the following steps: obtaining remote sensing images and DEM data of a target karst region; quantifying the shadow shielding possibility, vegetation confidence and vegetation density of a pixel based on the radiation brightness, spectral reflectance change trend of the remote sensing images and DEM topographic features, and then adaptively constructing an adjustment factor for correcting a soil-adjusted vegetation index; and calculating the soil-adjusted vegetation index at each pixel according to the adjustment factor, so as to draw a remote sensing vegetation map of the target karst region. The adjustment factor is adaptively determined by constructing a shadow vegetation characteristic value, the problem that the existing technology cannot distinguish between dense shadow vegetation and bright sparse vegetation under the complex karst topography due to the use of a unified adjustment factor is solved, and the precision and reliability of vegetation mapping in a karst rocky desertification treatment area are improved.

The application provides a bridge structure parameterized modeling and drawing method, constructs a bridge general element library with unique topological coding, takes the unique topological coding in the bridge general element library as an associated index, establishes a bidirectional mapping rule of design parameters, element models and drawing elements, generates a bridge three-dimensional model and a corresponding initial drawing framework after inputting design parameters based on the bidirectional mapping rule through parameterized modeling and engineering drawing technology, identifies component priority based on the unique topological coding, constructs a multi-constraint global optimization target, obtains a globally optimal labeling layout scheme through improved genetic algorithm iteration, completes intelligent labeling of the initial drawing, and generates a construction drawing. The application realizes intelligent labeling and synchronous compliance verification of the bridge construction drawing through the unique topological coding of the bridge element and the multi-constraint global optimization solution of the improved genetic algorithm.

The invention relates to the technical field of computer graphic processing and geology drawing making technologies, and discloses a lithologic symbol splicing method. The method comprises the steps of obtaining lithology naming data and industry template rules, and generating a splicing priority sequence through standardization processing and analysis binding; carrying out basic symbol selection and parameter instantiation based on the sequence to form an assembly candidate set; generating a pose solution set and a conflict list through adsorption matching, topological constraint solution and conflict detection; performing rule checking and conflict resolution to obtain a compliant splicing format and a quality mark; performing dependency analysis and increment regeneration on the compliant splicing format to obtain a regeneration result packet; and finally generating an export result package through pattern matching, parameter synthesis and cross-platform adaptation construction. According to the method, automation, standardization and cross-platform compatibility of lithologic symbol generation are realized, and the efficiency and consistency of geological map manufacturing are remarkably improved.

The present application relates to the technical field of cartography, and particularly relates to a cartography method, a cartography system and a storage medium. The method sets a user terminal, a map tool service subsystem, a map pipeline subsystem and a task running service subsystem, the user terminal loads a corresponding user interface, determines a cartography pipeline request in response to an operation on the user interface, and sends a sub-map tool service subsystem; the map tool service subsystem obtains corresponding map data from a map pipeline database according to the cartography pipeline request, and sends the map data to a map pipeline service subsystem; the map pipeline service subsystem performs cartography operation according to the map data, generates a complete version of a map and a cartography task request, and sends the cartography task request to a task running service subsystem; the task running service subsystem starts a cartography process according to the cartography task request, and performs map production, publication and release on the complete version of the map. The method realizes automatic operation of cartography, and improves the efficiency of cartography.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter may obtain a sequence of information bits. The transmitter may generate, using at least a probabilistic amplitude shaping (PAS) technique, a set of symbols from the sequence of information bits, wherein the generation of the set of symbols using at least the PAS technique includes using at least one of a sign-bit-shaping technique or a selective-mapping technique. The transmitter may transmit, to a receiver, the set of symbols. Numerous other aspects are described.

Methods, systems, and devices for validity mapping techniques are described. A memory device may use a change log to update a mapping that indicates whether data stored at respective physical addresses is valid. For example, the memory device may receive a command associated with data having a corresponding set of addresses (whether logical block addresses or physical addresses). The memory device may set an entry of the change log based on whether the set of addresses are consecutive. For example, the memory device may identify whether the set of addresses are consecutive and may set a flag in the entry of the change log to indicate whether the addresses are consecutive. Then, the memory device may update one or more entries of the mapping corresponding to the entry of the change log to indicate whether the addresses corresponding to the one or more entries of the mapping store valid data.

The application discloses a terminal security evaluation method and system based on a nonlinear mapping technology, equipment and a medium, mainly relates to the technical field of terminal security evaluation, and is used to solve the problems that the existing scheme has single risk evaluation mode, is easy to cause secondary disclosure risk, and the risk response mechanism is lagging behind. Including: obtaining real-time data of terminal preset risk dimension, determining whether the real-time data meets the preset risk trigger condition; when the preset risk trigger condition is met, the risk scoring mode is entered: obtaining the nonlinear calculation formula corresponding to the specific preset risk trigger condition triggered, extracting the corresponding real-time data, and then obtaining the triggered risk score by using the nonlinear calculation formula; when the risk scoring mode is not entered, the comprehensive risk score is obtained by weighting according to the real-time data of the preset risk dimension; according to the falling interval of the triggered risk score or the comprehensive risk score, the security risk level of the current terminal is determined.

The present disclosure describes a method (300) and a device (106) for predicting fault conditions in vehicles using field complaint data. The method (300) comprises processing (302) field complaint data collected from a plurality of vehicles to generate a processable data set comprising a plurality of rows and a plurality of columns. The method (300) further comprises determining (304) a match factor for two or more columns of the processable data set after determining a mapping between the two or more columns. The mapping is determined based on at least one unconditional mapping technique, one conditional mapping technique, or both.The method (300) further comprises generating (306) an attribute cluster corresponding to the two or more columns if the match factor for the two or more columns satisfies a predetermined criterion, and generating (308) a predictive message to correct the fault condition in at least one vehicle.

The invention relates to the technical field of automatic drawing, in particular to an online automatic thematic map drawing method and system based on artificial intelligence. The method comprises the following steps: synchronously collecting multi-modal input parameters of a user, carrying out time sequence alignment, respectively extracting geometric features and semantic features, and fusing through a self-adaptive confidence mechanism to generate a unified semantic geometric vector; through two-channel parallel analysis of semantic projection and geometric projection, candidate charting schemes of a concept layer and a graph layer are generated respectively, and semantic consistency and space consistency calibration and fusion are carried out on candidates; carrying out local geometric optimization, semantic adjustment and global layout optimization on the candidate set, introducing micro-variation to generate diversity, and outputting a graph which can be directly rendered online through feature weighted fusion and global consistency optimization; a self-learning knowledge base is constructed by collecting historical samples, and continuous accumulation and personalized output optimization of drawing experience are completed. According to the invention, a complete intelligent closed loop from multi-modal input to automatic mapping is realized.

This invention provides a cartographic method for optimizing real-time map rendering, belonging to the field of cartographic technology for real-time map rendering optimization. This invention pre-calculates the screen space projection area at the central processing unit (CPU) and repackages it into batches with varying loads, then asynchronously submits the batches to the graphics processor (GPU) via a drawing indirect instruction mechanism. It uses 3D Hilbert curves to map tile coordinates as linear indices, combining quadtree divide-and-conquer recursion with user motion prediction to drive tile prefetching. It reconstructs low-resolution tile textures using a bi-branch map texture super-resolution fusion model and adaptively adjusts the high-frequency gating weight inference scaling factor through a comprehensive quality adjustment value. It compresses the occlusion query overhead per frame through a bi-phase occlusion culling pipeline combined with temporal reprojection. This invention solves the technical problems of unbalanced geometric subdivision load, low tile scheduling cache hit rate, and difficulty in adaptively balancing texture super-resolution reconstruction quality and inference latency during real-time map rendering.

A driving method includes the following steps. An input image is divided into a plurality of image blocks. A plurality of pixel groups corresponding to the image blocks are respectively controlled. Step of controlling a corresponding one of the pixel groups corresponding to one of the image blocks includes the following steps. A plurality of input grayscale values included in one of the image blocks are mapped to a plurality of duty cycles. One of the duty cycles is determined as a desired duty cycle. A plurality of the input grayscale values are mapped to a plurality of data voltages according to the desired duty cycle. A plurality of pixel circuits included in the one of the pixel groups are driven according to the desired duty cycle and the data voltages.

A method for analyzing the overtopping failure of earth-rock dams based on the material point method belongs to the field of numerical simulation technology in civil engineering and hydraulics. The steps are as follows: S1, read in the material point information for each zone, background mesh information, material constitutive models and parameters of the material points, load information of the material points, and related calculation parameters; S2, based on the material point adaptive mapping technique, update the position and momentum of the material points in each time step; S3, calculate the equivalent plastic strain of the material points, consider the fluid-solid transformation of the material points in the dam area through the strength reduction method, and update the stress of the material points according to the constitutive models of the material points in each zone; S4, repeat S2 and S3 until all time steps are completed, and output the deformation and reservoir water level changes at typical moments during the overtopping failure process of the earth-rock dam. This invention uses adaptive mapping to improve the computational efficiency of large-scale problems, effectively reflects the scouring effect of reservoir water on the dam slope during the overtopping process, and reasonably reproduces the evolution process of the overtopping failure of earth-rock dams.

The invention discloses a multi-source geographic information data-oriented map batch generation method, and belongs to the technical field of computer mapping. The method comprises the following steps: constructing a map database, designing a map knowledge base, designing a sample drawing and making a template, and sequentially executing the steps of constructing the map database, designing the map knowledge base, designing the sample drawing and making the template, constructing an intelligent queue and outputting a map result. By collecting multi-source geographic information data, cleaning and integrating the multi-source data, establishing a drawing rule base of a map knowledge base, standardizing drawing rule definition, generating a dynamic template and scheduling an intelligent task queue, full-flow automation of map generation is realized. According to the method, the problems of difficulty in multi-source data integration, much manual intervention, low batch processing efficiency and the like in traditional map compiling are solved, the map generation efficiency and quality are remarkably improved, and the method is suitable for scenes needing large-scale map customization such as natural resource management and urban planning.

This invention relates to a method for collaborative simplification of roads and settlements, belonging to the field of digital mapping technology. The invention first uses Delaunay triangulation to extract the contour segments of adjacent settlements and the corresponding road segments. Then, it performs node matching on the extracted settlement contour segments and their corresponding road segments. Finally, it simplifies roads using constraint points, synchronizing the node selection of roads to the corresponding settlement contours based on the node matching results, thus achieving collaborative simplification. This invention establishes node-level associations between roads and settlements in adjacent areas through node matching, synchronizing the node selection of roads to the adjacent settlement contours, thereby achieving collaborative simplification. Compared to traditional road and settlement simplification methods, this invention effectively maintains the shape similarity and topological consistency between features, significantly reducing topological and shape conflicts.