50 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 discloses a space-time semantic fusion virtual track classification method and system, which are used for reducing noise of a virtual track time sequence based on local dynamic sorting and improving the quality of virtual track data. Space-time semantic expressions of the virtual tracks are defined, the virtual tracks are simplified into time sequence operation and target points, and the space-time continuity of the user access process is ensured; a time sequence operation characterization model is provided to extract time sequence operation features, a ground feature color template is constructed to extract target point space attribute features, and a POI semantic space is established to extract target point semantic attribute features; and fusing time, space and semantic features by using a time sequence neural network model, capturing a time sequence dependency relationship of the virtual trajectory, and realizing accurate classification of the virtual trajectory. According to the method, a map service provider can accurately divide user groups, establish user interest portraits and develop personalized and intelligent geographic information services.

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 invention discloses a method and a system for automatically generating a hydrological analysis service chain based on a large model. A hydrological analysis result is directly obtained from a demand described by a natural language. Firstly, a hydrological geographic information service expression model is proposed, and a hydrological analysis model and data are published as a service. And then, based on the large model and the prompt template, analyzing a demand described by a natural language of the user, and obtaining a most matched service by calculating the similarity. And finally, operating the service chain through a service chain execution engine to obtain a hydrological analysis result. According to the method, the user demand is automatically analyzed and the service chain is constructed based on the large model, and the hydrological analysis result is obtained through the service chain execution engine, so that the problem of automatic generation of the hydrological analysis service chain is effectively solved, and the automation level of hydrological analysis is remarkably improved.

The invention belongs to the technical field of geographic information, and particularly relates to a Cesium-based element service display method and system.The method comprises the steps that an uploaded vector file containing geographic information is received and analyzed, and geometric data obtained through analysis are stored in a database; performing layer class loading at the front end, wherein a layer loading demand is initiated to the rear end according to a request of a user; the rear end queries corresponding geometric data from a database according to the received request, calculates a geometric query range by using a geometric query function, and converts a query result into data in an MVT format through an STAsMVT function; compressing the converted MVT format data, and then sending the compressed data to a front end; and after the front end receives the MVT data, dynamically presenting the MVT data according to the rendering rule. According to the method, dynamic loading and rendering of the vector data are realized in a front-end and rear-end separation mode, the data processing efficiency is improved, the autonomous controllability and safety of the system are enhanced, and the performance of geographic information service and the user experience are 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.

The invention discloses a cooperative processing method and device for geographic information services, and relates to the technical field of geographic information systems. According to the method, the service request is analyzed, the service calling result is obtained on the basis of the service analysis result, the service request is analyzed and subjected to language processing, the most critical request information can be extracted from different types of complex service models and data formats, and service processing and calling are carried out on the basis of the request information; the cooperative processing efficiency of the geographic information service is improved; the interaction assembly is constructed through the service tool set and the service calling result, and necessary service tools can be selected according to different user requirements, so that the current trend that tools of the geographic information system are increasingly complex is well adapted, the mode of improving the geographic information service cooperative processing efficiency is achieved, the application adaptability of the geographic information system is improved, and the user experience is improved. And the capabilities of multi-level service data sharing, service logic interconnection, service range complementation and service situation fusion are ensured.

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 present application discloses a data processing method, device, equipment and storage medium. The method includes obtaining a task flow to be executed, the task flow includes task characteristics; according to the task characteristics, determining the scheduling information of at least two operator nodes that execute the logical operation instruction of the task flow and the logical operation instruction, the at least two operator nodes include a first operator node and a second operator node, and the operator types of the at least two operator nodes are different; according to the scheduling information, the first operator node and the second operator node are called by a preset mixed operator node to execute the logical instruction, and the target task result of the task flow is obtained. According to the data processing method provided in the embodiment of the present application, geographic information services can be effectively provided to users in complex service scenarios by hybrid arrangement of nodes from different sources and different operator types.

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.

A method includes outputting data for displaying a first portion of a user interface, the first portion of the user interface includes a first sub-portion for receiving selection data for selecting layers of geographical information system data from at least two geographical information service data sources of the multiple geographic information system data sources and a second sub-portion for receiving search criteria, wherein at least one search criteria of the search criteria is related to the at least two geographical information system data; transmitting search criteria to a subset of the geographical information system data sources corresponding to the selection data; receiving parcel data from the subset of the geographical information system data sources identifying properties satisfying the search criteria; and outputting data for displaying a second portion of the user interface, wherein the second portion of the user interface includes an identification of properties that satisfy the search criteria.

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 invention discloses a map interest point aggregation method, electronic equipment and a computer program product, and relates to the technical field of geographic information service, the map interest point aggregation method comprises the following steps: obtaining map interest point data, a digital elevation model and three-dimensional grid data of a target area, the map interest point data comprises a two-dimensional coordinate of a map interest point, and the three-dimensional grid data comprises grid data of a three-dimensional grid corresponding to a target area in a Beidou grid code coding system under a target grid level; determining a three-dimensional coordinate of the map interest point through the two-dimensional coordinate and a digital elevation model; determining a three-dimensional position relationship between the map interest point and the three-dimensional grid according to the three-dimensional coordinates; based on the three-dimensional position relation, the map interest points are aggregated, and three-dimensional aggregation point data of the target area under the target grid hierarchy are obtained. According to the method, multi-level and multi-precision map interest point aggregation of a unified grid can be realized.

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 relates to the field of water level monitoring equipment, in particular to underground water level monitoring and automatic sampling integrated equipment which comprises an external fixing part, a replacement part is arranged outside the external fixing part, a top mounting part is arranged at the top of the external fixing part, a collecting part is arranged outside the replacement part, a monitoring part is arranged inside the top mounting part, and a sampling part is arranged inside the monitoring part. In other surveying and mapping geographic information services, in the water level monitoring process, the water pumping device can be started at any time according to actual requirements, and water sample collection is completed through suction force; when the monitoring position is changed, the water sample in the pipe can be discharged through blowing force to realize resampling, so that the complexity and errors of manual sampling are avoided, the quality and efficiency of water sample collection are improved, and the problem that water level monitoring and depth water sample collection cannot be synchronously processed in water quality monitoring during traditional sampling is avoided; and water level monitoring and water sample collection need to be carried out for many times in actual monitoring operation.

The invention discloses a POI point aggregation method, electronic equipment and a computer program product, and relates to the technical field of geographic information services, the POI point aggregation method comprises the steps of obtaining POI data of all target POI points in a target area, and obtaining Beidou grid codes of all two-dimensional grids of the target area under a first grid level, the POI data comprises the longitude and latitude of the target POI point; according to the longitude and latitude of each target POI point and the Beidou grid code of each two-dimensional grid under the first grid level, respectively determining an affiliation relationship between each target POI point and each two-dimensional grid under the first grid level; and based on the affiliation relationship between each target POI point and each two-dimensional grid under the first grid level, aggregating the target POI points by taking the two-dimensional grid as a unit under the first grid level to obtain all target POI aggregation points under the first grid level. According to the method, multi-level and multi-precision POI point aggregation of a unified grid can be realized.

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 provides an existing urban park attribute partition identification method based on a pre-trained visual large model, belongs to the field of surveying and mapping geographic information services, solves the problem of low efficiency caused by manual subjectivity influence of an existing identification method, and comprises the following steps: creating an existing urban park attribute partition identification data set; selecting a visual large model SAM pre-trained on the large-scale image segmentation data set to carry out an attribute partition coarse extraction process of the existing urban park plane image; modifying the embedded part of the SAM image of the visual large model and fusing the coarse extraction result to form a fine extraction visual large model; and training the fine extraction visual large model by using the existing urban park attribute partition identification data set by adopting multi-level segmentation loss, processing the existing urban park plane image to be identified by using the trained fine extraction visual large model, and generating an existing urban park attribute partition identification result. According to the method, the efficiency of the attribute partition identification accuracy of the existing urban park is greatly improved.

The invention discloses a spatio-temporal big data platform construction method based on multivariate data service, and relates to the technical field of computer application technology and surveying and mapping geographic information, the method comprises the following steps: using a pre-configured cloud monitoring system and a data visualization system to carry out statistics and visual display on spatio-temporal big data and related businesses; a cloud management system is constructed, and platform service and a user system are managed in combination with a front-end framework technology and a background service interface; constructing a service supply system, and sharing platform resources in combination with a stream encryption algorithm and a video stream pushing technology; and based on a place name address engine, carrying out space-time positioning addressing processing on the identification information by adopting a place name address matching technology. The problems that multivariate data integration capability is lacked, an information security sharing platform is lacked and geographic information service demonstration application construction is insufficient are solved.

The present invention proposes a method for identifying the attribute partitions of existing urban parks based on a pre-trained visual large model, which belongs to the field of surveying and mapping geographic information services, and solves the problem that the existing identification methods are affected by human subjectivity and lead to low efficiency, including: creating an existing urban park attribute partition identification data set; selecting a visual large model SAM pre-trained on a large-scale image segmentation data set to perform a rough extraction process of the attribute partitions of the existing urban park plane image; modifying the part of the visual large model SAM image after embedding and integrating it into the rough extraction result to form a fine extraction visual large model; using a multi-level segmentation loss to train the fine extraction visual large model using the existing urban park attribute partition identification data set, and using the trained fine extraction visual large model to process the existing urban park plane image to be identified, and generating an existing urban park attribute partition identification result. The present invention greatly improves the efficiency of the accuracy rate of the existing urban park attribute partition identification.