30 results about "Geographic information services" patented technology

The invention discloses a multi-temporal remote sensing image automatic change detection method based on deep learning, and the method comprises the following steps: collecting remote sensing image data obtained in different periods in a target region, carrying out the standardization processing of the remote sensing image data, and obtaining a standardized multi-temporal remote sensing image data set; based on the standardized multi-temporal remote sensing image data set, carrying out ground feature category segmentation by adopting a semantic segmentation network to obtain a ground feature semantic priori graph; inputting the standardized multi-temporal remote sensing image data set into the improved U-shaped twin network, and outputting a change detection probability graph and a binary change mask; based on the change detection probability graph and the binary change mask, attribute discrimination is carried out on the change area in combination with the ground feature semantic prior graph, and a change area result is output; and integrating the change area result to a geographic information service platform. The improved U-shaped twin network is adopted, and automatic change detection of the multi-temporal remote sensing image is achieved.

The embodiment of the invention provides an address data matching method and related equipment, and belongs to the technical field of geographic information services. The method comprises the following steps: constructing an address annotation corpus according to input address information data and a preset address database; the method comprises the following steps: generating a geographic information embedding vector according to a preset geographic information knowledge graph, performing address element analysis in combination with an address annotation corpus to obtain an address element sequence so as to construct a dictionary tree, and performing similarity screening through a spatial hierarchical matching algorithm to obtain a similar address set; generating an address embedding vector matrix through a preset word embedding vector model, and performing feature extraction through a preset semantic feature extraction model to obtain semantic-level similar features; according to input address information data, multi-dimensional character similarity matching is carried out to obtain character-level similar features, then weighted fusion is carried out in combination with semantic-level similar features, and target matching address data is determined according to a weighted fusion result. According to the embodiment of the invention, the address data matching accuracy and efficiency can be improved.

The invention discloses a smart park security system based on a GIS technology, and belongs to the technical field of security protection. Comprising a GIS basic service module, a security element plotting module, a basic element visualization module, a multi-source heterogeneous security information integration module, a data storage and management module, a depth feature extraction module, a model training and real-time reasoning module and a control response and verification module. And the GIS basic service module is used for providing a unified space reference and geographic information service and supporting coordinate conversion, space analysis and map rendering. Based on the unified space reference capability of the GIS basic service module and in combination with the GPS RTK positioning and Beidou dual-mode positioning of the security element plotting module, precise space association of the park security equipment is realized, the plotting position is precise, the real-time operation state of the equipment can be deeply bound with GIS coordinates, and a manager can intuitively master the dynamic state of the equipment through a map, so that the management efficiency is improved. The problems of fuzzy plotting and state disjunction of a traditional system are solved.

The invention relates to the technical field of channel monitoring and underwater topography analysis, in particular to a multi-beam sounding data driven underwater topography profile extraction method and device and a medium, and the method comprises the steps: obtaining channel region multi-beam sounding original data, carrying out the standardized preprocessing, and outputting a sounding data set; performing spatial interpolation and vectorization processing on the sounding data set to generate channel geological data, and issuing the channel geological data as a similar three-dimensional channel bottom graph through a geographic information service platform; generating a profile path, and generating interpolation points according to a preset interval; constructing a spatial index structure based on the sounding data set, and establishing an adjacent sounding point retrieval channel for each interpolation point; and in allusion to the same profile path, acquiring multiple periods of sounding data, calculating water depth difference, and dynamically and visually displaying an abnormal movement phenomenon by using a broken line graph. According to the method, efficient extraction, dynamic comparison and automatic early warning of the multi-period sounding data can be realized, and the analysis efficiency and accuracy of the channel topographic change are remarkably improved.

The present invention relates to the technical field of offshore wind power construction, and discloses a cloud platform system for offshore wind power construction, which includes a multi-dimensional data fusion module for collecting and fusing ship, pile hammer and environmental data; a construction path optimization module for modeling the ship's navigation trajectory and optimizing the path; a resource dynamic scheduling module for decomposing tasks and scheduling resources; a safety situation awareness module for extracting equipment abnormality features and generating early warnings; and a feedback closed-loop optimization module for correcting task scheduling results. In addition, it also includes an analysis software integration module for integrating multiple analysis software and realizing data intercommunication; and a geographic information service module for realizing multi-dimensional spatial data visualization. This cloud platform system realizes the intelligent management of offshore wind power construction, improves construction efficiency and safety, reduces construction costs and risks, and promotes the development of the offshore wind power industry.

This invention relates to the field of geographic information service security control technology, and discloses a method, system, device, and medium for hierarchical management and control of WMS maps. The method generates a cacheKey corresponding to the user's identity and caches the permission context when processing GetCapabilities requests, and performs layer filtering and access path rewriting on service capability documents. In subsequent GetMap requests, the permission context is restored based on the cacheKey, and transparent return, pass-through, or clipping is performed according to spatial relationships. In GetFeatureInfo requests, pixel coordinates are mapped to geographic rectangles, spatial verification is performed, and attribute results are filtered according to a field whitelist. This solution achieves collaborative management and control of layers, spaces, and attributes without modifying the backend WMS service.

The invention provides a drainage basin geographic information visualization system. The drainage basin geographic information visualization system comprises a user layer, a business layer and a data layer. Wherein the business layer comprises a basic function module, a thematic information module, a water regimen information module, a city information module and a digital elevation model (DEM) display module. According to the system, a Geoserver map server, an OpenLayers front-end map framework, an HTML (Hypertext Markup Language) language, a JavaScript language and a PostgreSQL (Structured Query Language) database are adopted, and the characteristics and requirements of a target river basin are combined, so that a user can obtain geographic information in the aspects of land, hydrology, meteorology, humanity, economy and the like along a river and visually display the geographic information. According to the system, system resources and geographic information data can be fully utilized, optimal configuration and display of the data and the resources are achieved, diversified geographic information services are provided, and therefore the use experience of a user can be effectively improved.

The invention relates to the field of natural language processing, in particular to a marine environment element picture dynamic generation method and system based on Agent dialogue, and the method comprises the steps: receiving natural language interaction data of an intelligent agent and a user in real time, analyzing the natural language interaction content, and extracting a target environment element, a time-space range parameter and a visual style instruction; according to the analyzed target environment element and the visual style instruction, determining corresponding visual style configuration; according to the analyzed space-time range parameters, obtaining corresponding environment element data from a marine environment database; in combination with the environmental element data and the visual style configuration, inputting the environmental element data and the visual style configuration into a preset geographic information server, and performing layer rendering processing through the geographic information server according to the environmental element data and the visual style configuration; and based on a processing result, obtaining a visual picture containing the target environment element, and feeding back the visual picture to the user through the intelligent agent.

A system (100) and method for a community ecosystem infrastructure (110) are provided, which may include providing an association of an asset (115) to an entity (102). The method includes receiving asset data (171A, 171B) relating to an asset (115), as well as geographical information associated with the asset data (171 A, 171B), from a geographical information service (138). The method includes transmitting, to a plurality of verifying entities, a request to verify an association of the asset (115) to the entity (102), and receiving, from at least one of the pluralities of verifying entities, a response indicating an approval or rejection of an association between the asset (115) and the entity (102). The method includes determining, based on the responses received, a certification of association of the asset (115) to the entity (102).

The application discloses a kind of microcosmic traffic simulation data's map engine adaptation conversion method and system, it is related to traffic simulation technical field.The method includes: extracting road section information and lane information from simulation road network file;According to road section information, judge road section nature, according to road section information and road section nature, construct independent attribute set for each road;Based on driving lane line shape and lane width, generate driving lane surface file for each road, the independent attribute set constructed is used as the attribute of corresponding driving lane surface file;Parallel offset is carried out to driving lane line shape, form emergency lane surface file;Driving lane surface file and emergency lane surface file are carried out gap correction;According to independent attribute set, establish style rule library, judge the required lane type, realize automatic marking line adaptation according to lane type, generate lane line file;Lane line file, corrected driving lane surface file and emergency lane surface file are loaded to geographic information service software.

This allows users to retrieve geographic information from geographic information servers of their choice and display it on a map. [Solution] Terminal 1 includes a storage unit 14 that stores a conversion program that does not have an associated address, which is a conversion program that accesses a geographic information server 2 to acquire geographic information and converts it into drawing data having coordinate information corresponding to the coordinate system of the map displayed on the display unit 13; an association unit 155 that receives the address of the geographic information server 2 from the user of terminal 1 and associates the received address with the conversion program; a drawing data acquisition unit 157 that executes the conversion program and causes the conversion program to acquire geographic information from the geographic information server 2 based on the associated address and convert it into drawing data; and a display control unit 158 ​​that overlays and displays the drawing data on the map displayed on the display unit 13.

The invention relates to the technical field of digital data processing, and discloses a method and a system for integrating a third-party map, and the method for integrating the third-party map integrates various third-party map resources and a specific geographic information system (GIS) through technical means, realizes aggregation application of multi-source geographic data, can depend on a uniform interface adaptation layer, and can be used for integrating the third-party map resources with the specific geographic information system (GIS). Standardized packaging is carried out on application programming interfaces (APIs) of different map platforms, the problem that interface protocols and data formats are different is solved, meanwhile, a data conversion engine is set up, compatible processing of data such as POI and path planning of a third-party map and space coordinates and attribute information of a specific GIS is completed, and the data conversion efficiency is improved. According to the method, scheduling and fusion display of multi-source data are achieved by constructing the middle service layer, the general function advantages of a third-party map are reserved, the professional space analysis capacity of a specific GIS can be integrated, finally, a unified geographic information service entry is provided for a user, and the map application requirement in a complex scene is met.

The application discloses an English place name proofreading method considering multi-dimensional character features, which comprises the following steps: constructing a standard English place name data set, collecting English place names from multiple sources, and performing standardization processing to form a standard English place name data set with unified format and accurate content; generating an English place name index based on character statistical features; calculating the similarity of English place names based on character local order, including an English place name similarity algorithm used as a basis for judging the matching degree between different English place names in the English place name proofreading process; and performing English place name proofreading based on character matching, using the standard English place name data set, the English place name index structure based on character statistical features and the English place name similarity algorithm based on character local order. The English place name proofreading method is beneficial to providing more accurate English place name input for other types of geographic information services and further improving the overall performance of geographic information services.

The application belongs to the technical field of geographic information services, and discloses a mountaineer anti-lost early warning and tracking system, comprising the following modules: a map display module, an information reporting module, a data management module and a system interaction module. By constructing the four core modules of map display, information reporting, data management and system interaction, the pain points of inconvenience of carrying traditional paper maps, limited coverage and insufficient flexibility of fixed signboards can be effectively solved. The design of the information reporting module further strengthens the safety guarantee capability. When the mountaineer cannot judge the position or is in a positioning dilemma, the mountaineer can initiate help by uploading the photos of the surrounding environment to the system. In addition, if it is found that other personnel walk to a deep and undeveloped area or a high-risk area, the on-site photos can be taken and reported in time to avoid potential accidents such as getting lost or being in danger in advance, thereby playing the functions of active early warning and risk preposition intervention.

The application relates to the technical field of digital data processing, and discloses a method and system for integrating third-party maps. The method for integrating third-party maps integrates various third-party map resources and a specific geographic information system (GIS) through technical means, realizes the aggregated application of multi-source geographic data, can rely on a unified interface adaptation layer to standardize encapsulation of application programming interfaces (APIs) of different map platforms, solves interface protocol and data format difference problems, simultaneously builds a data conversion engine, completes compatible processing of POI, path planning and other data of third-party maps and spatial coordinates and attribute information of the specific GIS, realizes scheduling and fusion display of multi-source data through construction of an intermediate service layer, retains general function advantages of the third-party maps, can integrate professional spatial analysis capabilities of the specific GIS, and finally provides a unified geographic information service entrance for users and meets map application requirements in complex scenes.

The invention discloses a geological exploration surveying and mapping device for Danxia landform, and relates to the technical field of geographical surveying and mapping, the geological exploration surveying and mapping device comprises a supporting chassis of a hollow structure, a surveying instrument is installed on a cantilever frame, a sliding frame connected with the surveying instrument is slidably installed on the cantilever frame, and a plurality of vertical columns which are annularly and uniformly distributed are rotatably installed in the supporting chassis; an expansion supporting assembly is installed on the rotating arm. The traction adjusting assembly can drive the rotating sleeve and the telescopic arm to rotate and adjust relative to the lateral column, so that the sliding frame drives the surveying instrument installed on the sliding frame to linearly slide relative to the cantilever frame, and in the process, the rack rotates around the fixed gear and drives the telescopic arm to slide relative to the rotating sleeve so as to adapt to the position change of the sliding frame; the position stability of the telescopic arm is guaranteed, the surveying instrument can be reliably supported before and after adjustment, and it is effectively guaranteed that the surveying instrument conducts stable and accurate surveying and mapping in surveying and mapping geographic information service of Danxia landform geological exploration.

The application discloses a kind of based on deep learning multi-temporal remote sensing image automatic change detection method, comprising the following steps: collecting target area obtained remote sensing image data in different period, remote sensing image data is standardized, obtains standardized multi-temporal remote sensing image dataset;Based on standardized multi-temporal remote sensing image dataset, using semantic segmentation network carries out ground object class segmentation, obtains ground object semantic prior graph;Standardized multi-temporal remote sensing image dataset is input into improved U type twin network, and outputs change detection probability graph and binary change mask;Based on change detection probability graph and binary change mask, attribute discrimination is carried out to change region in combination with ground object semantic prior graph, and change region result is output;Change region result is integrated into geographic information service platform.The application uses improved U type twin network, realizes the automatic change detection of multi-temporal remote sensing image.

This application discloses a method for aggregating map points of interest, an electronic device, and a computer program product. This application relates to the field of geographic information service technology. The method comprises: obtaining map point of interest data, a digital elevation model, and three-dimensional grid data of a target area, wherein the map point of interest data includes the two-dimensional coordinates of the map point of interest, and the three-dimensional grid data includes grid data of the three-dimensional grid corresponding to the target area at the target grid level in the Beidou grid code system; determining the three-dimensional coordinates of the map point of interest using the two-dimensional coordinates and the digital elevation model; determining the three-dimensional positional relationship between the map point of interest and the three-dimensional grid based on the three-dimensional coordinates; and aggregating the map points of interest based on the three-dimensional positional relationship to obtain three-dimensional aggregated point data of the target area at the target grid level. This application can achieve multi-level, multi-precision map point of interest aggregation in a unified grid.

The invention relates to the technical field of centroid extraction, in particular to a star map centroid extraction method, device, equipment and medium for surveying and mapping service, and the method comprises the steps: firstly obtaining a pixel flow, a preset segmentation threshold value, a scanning rule and a neighborhood label inheritance rule, and carrying out the segmentation processing of the pixel flow based on the segmentation threshold value; the method comprises the steps of obtaining a target binarization pixel data set, then performing pixel traversal and label distribution processing on the target binarization pixel data set based on a scanning rule and a neighborhood label inheritance rule to obtain a travel-based label pixel data set, and then performing connected domain merging processing on the travel-based label pixel data set to obtain a travel-based label pixel data set; according to the method, multiple pieces of complete connected domain label data are obtained, finally, gray scale weighting operation processing and validity judgment processing are conducted on each piece of complete connected domain label data, a target star point centroid data set is obtained, star point detection and centroid calculation are achieved, and the requirement for real-time high-precision feature extraction in multiple types of surveying and mapping geographic information services is met.

The present application discloses a POI point aggregation method, electronic device, and computer program product, relating to the field of geographic information service technology. The POI point aggregation method includes: obtaining POI data of all target POI points in a target area, and obtaining Beidou grid codes of all two-dimensional grids in the target area at a first grid level, wherein the POI data includes the longitude and latitude of the target POI points; determining the attribution relationship between each target POI point and each two-dimensional grid at the first grid level based on the longitude and latitude of each target POI point and the Beidou grid code of each two-dimensional grid at the first grid level; based on the attribution relationship between each target POI point and each two-dimensional grid at the first grid level, aggregating the target POI points in units of two-dimensional grids at the first grid level to obtain all target POI aggregation points at the first grid level. The present application can achieve multi-level, multi-precision POI point aggregation in a unified grid.

A method for gap filling geographic information service data includes determining a bounding region at or near an initial alignment. The method also includes determining the initial alignment within the bounding region. A corridor buffer is generated at or near the initial alignment, and within the bounding region. Cost layer data is processed. Incompleteness of a number of polygon-bounded areas is determined based on the cost layer data. Partial completeness of the polygon-bounded areas and completeness of the polygon-bounded areas are also determined based on the cost layer data. A synthetic completeness of the number of polygon-bounded areas is generated based on the incompleteness, the partial completeness, synthetic completeness, and completeness of the polygon-based areas. A rasterized cost map including the completeness and the synthetic completeness of the polygon-bounded areas is stored at the processor(s) and in memory(ies).

The invention discloses a hand-drawn style map generation system and method based on artificial intelligence and geographic information, and belongs to the technical field of map data processing.The method comprises the steps that geographic area information input by a user is obtained, and geographic element data of an area is obtained from geographic information service; the geographic elements are converted into a semantic map with element types distinguished by different colors, a control chart is generated based on the semantic map, a hand-drawn style map is generated under the constraint of the control chart by using a pre-trained deep learning image model, and finally a result is returned and displayed to a user; the system comprises a front-end interaction module, a rear-end processing module, a GIS data acquisition and processing module, a semantic map generation module, an AI image generation module and a result return and display module. The problems that a traditional digital map lacks artistry, the manual hand drawing efficiency is low, and a general AI generation model is geographically distorted are solved.

The invention discloses a semi-automatic ground resolution distance measurement method for an in-orbit medium-resolution remote sensing image. The method comprises the following steps: S1, selecting natural targets and constructing a target library; s2, extracting target sub-pixels and generating a profile coordinate set; s3, extracting a gray value sequence of a normalized image from the obtained coordinate set of the section, constructing a section matrix and averaging according to rows to obtain an average edge spread function, performing first-order difference operation on the edge spread function to obtain a line spread function, and further performing normalization processing on the line spread function; s4, extracting a peak value of the normalized line spread function curve and a corresponding half peak value position, determining a distance between half peak points on the left side and the right side through linear interpolation, taking the distance as a width metric value, and multiplying the width metric value by a ground sampling distance of the satellite image to obtain a ground resolution distance value; and S5, summarizing and outputting results. The method is applied to the technical field of remote sensing image measurement or surveying and mapping geographic information services.

The invention relates to the technical field of geographic information collection and processing, and discloses an integrated geographic information collection method and system.The integrated geographic information collection method comprises the steps that format unification processing, coordinate system conversion processing, time reference synchronization processing and data integrity inspection processing are conducted on multi-source heterogeneous geographic data; carrying out multi-dimensional quality evaluation, anomaly detection and elimination, adaptive weight distribution and data restoration and interpolation; performing dynamic load balancing, adaptive calculation scheduling, edge cooperative calculation and incremental result fusion by adopting edge nodes; carrying out multi-scale space-time registration, adaptive grid division, tensor decomposition fusion and uncertainty modeling; a multi-level health monitoring and fault prediction model, a self-adaptive fault-tolerant strategy and a service self-healing recovery mechanism are adopted; real-time geographic information service is provided; through a multi-level fault-tolerant mechanism and an intelligent self-healing technology, the high reliability of the system is realized, and the stability and the fault recovery capability of the system are improved.

This invention discloses a smart port ecological environment monitoring system, comprising an infrastructure layer, a data platform layer, a technology platform layer, a business application layer, and a user presentation layer deployed sequentially. The infrastructure layer includes a hardware device cluster module and a network transmission module. The data platform layer includes a data standardization processing unit, a data storage unit, and a data sharing unit. The technology platform layer includes a basic service module and a core algorithm module. The basic service module includes a single sign-on subsystem, a workflow engine, geographic information services, and an artificial intelligence system. The user presentation layer provides differentiated, visual displays and operational functions to users and maintenance personnel at all levels through displays, desktop terminals, and mobile terminals. This system enables comprehensive monitoring of multiple elements of the port ecological environment, intelligent control of pollution control facilities, efficient resource utilization, and cross-system collaborative supervision, providing technical support for the construction of green ports.

The invention relates to the technical field of ground information surveying and mapping auxiliary devices, in particular to a real estate surveying and mapping auxiliary mounting device based on surveying and mapping geographic information service, which comprises a receiver, a supporting rod for supporting the receiver is detachably connected to the bottom of the receiver in the vertical direction, and a fixing seat is mounted at the top of the supporting rod. The top of the fixing seat is provided with a supporting seat in a matched mode and connected with the receiver connecting end through the supporting seat. When a micro servo motor A runs, a movable ring is driven to rotate through a gear, when the movable ring rotates, the position of a bolt can be adjusted in the vertical direction, then the height of the bottom of a supporting seat on the corresponding side is driven to be adjusted, automatic leveling treatment on the receiver is achieved, and a base makes contact with the ground and supports a supporting rod, an inserting rod and a top assembly of the supporting rod. The movable button at the corresponding position is pressed to push the limiting pin to be retracted into the inserting rod, the inserting rod is retracted into the supporting rod, the moving wheels at the bottom of the supporting rod make contact with the ground, the equipment can be directly pushed to conduct point turning movement, and the point turning process is more convenient.

The invention relates to the technical field of surveying and mapping, in particular to a real estate surveying and mapping device based on surveying and mapping geographic information service, comprising a base, a transmission assembly, a reversing box and a surveying and mapping component, the transmission assembly is mounted at the top of the base, the reversing box is arranged on the transmission assembly, and a mounting plate is arranged at the top of the transmission assembly; the surveying and mapping component is mounted at the top of the mounting plate, the surveying and mapping component comprises a surveying and mapping geographic information processing module and a three-dimensional laser scanner, the transmission assembly comprises a sleeve, a rotating sleeve and a lifting screw rod, and an inner sleeve is arranged at the circle center in the sleeve. Through a mechanism composed of a base, a transmission assembly, a reversing box and a surveying and mapping part, a surveying and mapping device which is high in use flexibility and convenient to move in the surveying and mapping process is provided for real estate surveying and mapping personnel, and a mounting plate above the transmission assembly provides support for the surveying and mapping part; the problem of inconvenience caused by long-term manual grabbing and lifting in the real estate building scanning and surveying and mapping period is solved.

The embodiment of the invention discloses a surface element merging method and device, equipment, a medium and a program product. One specific embodiment of the method comprises the following steps of: for two target surface elements in a surface element set, executing the following generation steps: determining buffer surface elements corresponding to the two target surface elements; performing element point fusion of the first target surface element, the buffer surface element and the second target surface element to generate a fusion result; performing surface element fusion among the first target surface element, the buffer surface element and the second target surface element for the fusion result to generate fused surface elements; removing the first target surface element and the second target surface element from the surface element set, and adding fused elements to obtain a processed element set; in response to the number of facet elements being a target number, merged facet elements are generated according to the processed set of facet elements. The embodiment is related to geographic information service, and can accurately and effectively realize the combination of each surface element in the corresponding surface element set of the map.

The invention provides a real estate surveying and mapping device based on surveying and mapping geographic information service, which comprises a bottom frame, universal wheels for moving are arranged at the bottom of the bottom frame, a telescopic mechanism is arranged on one side of the top of the bottom frame, a transversely arranged top frame is arranged at the top of the telescopic mechanism, and an angle adjusting mechanism is arranged at the top of the top frame. And a surveying and mapping component is arranged at the top of the angle adjusting mechanism. Compared with the prior art, the device has the following beneficial effects that the device can be rapidly transferred through the universal wheels at the bottom of the bottom frame, the anchoring ground mechanism is vertically inserted into the ground through the anchor columns and is transversely supported through the transverse insertion pieces, a vertical and transverse double-fixing structure is formed, the anti-overturning capacity is high, and the device is suitable for various terrains such as flat, soft and gradient terrains; the device deviation in the surveying and mapping process is effectively avoided.

The application discloses a kind of semi-automatic ground resolution distance measurement methods of on-orbit medium resolution remote sensing image.The present application includes the following steps: step S1.natural target selection and target database construction;Step S2.target subpixel extraction and profile coordinate set generation;Step S3.the coordinate set of obtained profile extracts the gray value sequence of normalized image, constructs profile matrix and averages by row, obtains average edge spread function, carries out first-order difference operation to edge spread function, obtains line spread function, further carries out normalization processing to line spread function;Step S4.extract the peak value of normalized line spread function curve and its corresponding half-peak position, determine the distance between left and right half-peak points by linear interpolation, as the measure of width, multiply the measure of width with the ground sampling distance of satellite image, obtain ground resolution distance value;Step S5: result summary output.The present application is applied to the technical field of remote sensing image measurement or surveying and mapping geographic information service.