31 results about "Spatial information systems" patented technology

A geospatial information system is provided including a database, a processing unit adapted to access and retrieve the geospatial information from the database, a tool permissions module, a user interface module, a monitoring module, an audit module, a workflow management module, and an update module. Also, a method for updating geospatial information is provided including the steps of providing a database, accessing the database to retrieve geospatial information, associating a tool permission level to a user, generating a customized interface including a plurality of enhancement tools to request a change to the geospatial information, applying a logic check, selecting a map technician, prioritizing the order in which the changes are processed, monitoring the status of the requested change, and updating the geospatial information.

The present invention relates to the technical field of geospatial information systems and discloses a method for converting a BIM entity model into a multiple levels of details (LOD) GIS standardized model. Through a method of converting the BIM entity model into the multiple levels of details (LOD) GIS standardized model, the automatic conversion from the BIM entity model to the multiple levels of details (LOD) GIS standardized model is realized, a computer can conveniently execute the geometric semantic information interoperability between two models, the complete conversion and mapping between an IFC format and a CityGML format is realized, and the conversion quality is improved. In addition, the conversion method has the advantages of fast conversion speed and high conversion accuracy, and the practical promotion and application are facilitated.

The invention relates to the technical field of geographic space information systems, and provides a city three-dimensional model data organization method. The method comprises the steps of conducting multi-detail and multi-level simplifying pre-process to city three-dimensional model data, establishing a multi-level three-dimensional scene organization structure for a large number of scenes within the range of a whole city, conducting serialization and reestablishment to the three-dimensional model data of network transmission, and conducting dynamic scheduling to the city three-dimensional model data based on visibility computing and level of detail (LOD) computing. Through the establishment of a space index structure of a large number of city three-dimensional model data and automatic multi-detail and multi-level simplification of the city three-dimensional model data, organization optimization is conducted to the three-dimensional model data under the network environment, dynamic scheduling efficiency of the city three-dimensional model data under the network environment is improved, and real-time visual efficiency of the city three-dimensional model data is improved.

The invention discloses a whole space information expression method and a whole space information system. The method includes following steps: statically describing whole space information which includes position coordinates (x, y, z) and natural attributed information of a space entity in physical world and network virtual world; adding time attribute, and adding a time identity for the space entity in a static state to realize dynamic description of the whole space information; providing place name address identity and address grid coding identity under uniform time-space standards to realize correlation and integration of different space entities based on geographic space position or range. The system comprises a space entity description module, a time identity module and a place name address description module. The whole space information expression method is used for realizing dynamic description and combining communication of all space entities having position information in the virtual world and realizing whole space information expression of geographic position, natural attribute and time-space attribute of the space entities and thematic data under the uniform time-space standards.

The invention relates to the technical field of geographic space information systems, and discloses an immersive visual analysis method for spatio-temporal data on the basis of a multilayer association network. The invention has the concept that: firstly, abstracting and extracting an object node related to a task from a scene; then, analyzing and calculating an association relationship among nodes, and carrying out hierarchical division on the association relationship among multi-granularity spatio-temporal objects; according to a spatial topological relationship, a semantic association relationship layer and a multi-modal characteristic association relationship layer, constructing a multilayer association network, and carrying out collaborative visual processing on the constructed multilayer association network and a scene; and finally, through a human-computer interaction operation, realizing a final purpose that inferential reasoning and discovery ability of a human brain can be combined and a potential and complex association relationship is assisted in discovery. Therefore, the method is favorable for people to quickly discover a new knowledge rule, and the progress and the development of human scientific knowledge are accelerated.

The invention discloses a method for establishing a full-space-oriented data model based on Hash geocoding, which comprises the following steps of: S1, scheduling P2P protocol files based on Hash plaintext geocoding indexes, and respectively generating Hash-based geocoding for nodes and files for indexing; s2, establishing a data node network based on a Hash geocoding index; s3, building and evaluating a global virtual environment data sharing prototype and an experimental platform; s4, making a multi-granularity coding rule; s5, spatial object big data storage based on Hash geocoding is carried out; s6, designing NoSQL database. The method has the advantages that support is provided for establishment of a multi-granularity space-time database or a full-space information system; and unification of relative positions between the data storage environment and objects in the real world is realized.

The invention discloses a semantic-based multi-modal spatio-temporal data association method, and belongs to the technical field of geographic space information systems. According to the method, the constructed ontology model is used for carrying out feature-semantic mapping and conceptualized semantic expression on the data, complex semantic information of the multi-modal spatio-temporal data iseffectively described in a unified format, and the problem that a computer is difficult to understand semantic content information of the data is solved; meanwhile, based on ontology semantic expression of the spatio-temporal data, time association, space association and content object semantic association between the spatio-temporal data are established through three factors of time, space and objects contained in data content, and association between the multi-modal spatio-temporal data is effectively carried out. The method is mainly used for cross-modal retrieval of multi-modal spatio-temporal data, an accurate and comprehensive data link association processing result is provided for a user, and then the cross-modal retrieval performance is improved.

The invention provides a whole-space information system-oriented coordinate system conversion method, and belongs to the field of geospatial information visualization. A space conversion framework ofa whole-space information system is established, and description of WKT on a space reference system is extended to enable the same to support definition of planets and coordinate systems of celestial-sphere coordinate systems, orbit coordinate systems and the like; and a space reference memory model based on a nine-degree-of-freedom space reference tree is designed, and thus maintenance of the space reference tree, calculation of relative status and plug-in realization of the coordinate system conversion method are realized. The method can effectively solve continuous whole-space-time modelingand simulation of the whole-space information system from macroscopic worlds (such as stars and planets in a solar system) to microcosmic worlds (such as indoor environments), from static status to dynamic status and from physical space-time to logical space-time, has good scalability and realization efficiency, and can be widely applied to many fields of satellite positioning and navigation, aerospace remote-sensing, smart cities, territorial planning, military application and the like.

The invention relates to the technical field of a geospatial information system, and provides a three-dimensional space data parallel scheduling method based on data content. The method comprises the steps of receiving three-dimensional space data scheduling requests of a plurality of clients; resolving a three-dimensional space data scheduling task through a scheduling task parallel resolving method based on the data content, generating a three-dimensional space data scheduling sub-task which can be executed in parallel; distributing a usable task executing thread and a database connection for the three-dimensional space data scheduling sub-task, carrying out parallel inquiry of the three-dimensional space database; recombining the obtained data inquired by the three-dimensional space data scheduling sub-task and then returning to the clients. The efficiency of scheduling different types of three-dimensional space data from the three-dimensional space database is improved, and the real-time visualization ability of a three-dimensional geographic information system (GIS) is also improved by resolving and parallel executing of the three-dimensional space data scheduling task.

The invention relates to the technology field of geographic space information systems, and discloses a high efficient texture optimization method for a large scene rendering. The method comprises the follow steps of: (1) performing combining processing of textures corresponding to models to be combined, to from a corresponding texture set; (2) establishing a mapping relation of model data associated with small textures for each small texture in the texture set; (3) sequencing the textures in the texture set; (4) combining several small textures in the texture set according to a texture of a given size, to form several large textures of the given size; (5) interchanging identified model data texture coordinates in the step (3; ) and (6) combining models corresponding to the large textures, to obtain a combined model. The high efficient texture optimization method is advantageous in that, data reorganization is performed for large-scale models via texture technology, data of rendering objects are significantly reduced, times for submitting the data to a GPU are reduced, GPU processing pressure is effectively alleviated, and scene rendering efficiency is improved.

The invention relates to the field of geographic space information systems, and discloses an urban three-dimensional model data preprocessing method suitable for high-efficiency rendering. The method comprises the steps: importing to-be-loaded models in batch and carrying out analysis; generating a corresponding R tree through employing an R tree space characteristic organization model; dividing the R tree into a plurality of small R trees through the paging technique; carrying out the detailed multilayer LOD processing of each small R tree; carrying out the further optimization of the generated multilayer LOD small R trees, and exporting the generated multilayer LOD small R trees. According to the invention, the method enables a large number of models to be reorganized through the paging technique. When a user carries out scene rendering, the user just needs to load the models in a view range, thereby greatly reducing the number of rendered objects, and improves the real-time visualization efficiency of urban three-dimensional model data.

Methods and systems for multimedia object association to digital paper spatial diagrams are disclosed herein. A method for multimedia object association to digital paper spatial diagrams includes the steps of (1) capturing a media object to be imported into a spatial information system; (2) linking the captured media object to a digital paper document containing a spatial diagram, using a input device configured to select a linking action area located in a first area of the digital paper document and configured to select a location for the captured multimedia data object on a second area of the digital paper document; (3) transferring the media object and the data from the input device to a spatial information system; and (4) combining the media object and the data of the input device to create an updated digital paper document containing the media object.

In one embodiment, a system receives a number of point clouds captured by one or more LIDAR sensors of an ADV and corresponding poses(1801). The system receives a number of RGB images from one or moreimage capturing sensors of the ADV(1802). The system synchronizes the RGB images with the point clouds to obtain RGB point clouds(1803). The system extracts features from the RGB point clouds, the features including contextual and spatial information of the RGB point clouds(1804). The system registers the RGB point clouds based on the extracted features(1805) and generates a point cloud map basedon the registration of the RGB point clouds(1806).

A digital paper-enabled product includes digital paper with a digital pattern that spatially cooperates with one or more features or boundaries printed on the pattern. More specifically, a system cooperating with the product may include spatial information systems that manage the features or boundaries and communicates with a writing instrument that was used to effect changes to the digital paper-enabled product. In one embodiment, the digital paper-enabled product may take the form of a sheet of digital paper bearing a digital pattern and where action icons (e.g. user intended actions) and/or features (e.g. such as map features) or a spatial reference frame are printed onto the digital pattern and where at least one action palette is printed onto the digital pattern, correlated therewith, and usable to effect changes to the product. Other embodiments include a method of making the digital-enabled product, a method of processing information obtained from the digital paper-enabled product, and a method of using the digital paper-enabled product.

The invention provides a flexible node model of a space information network. The flexible node model of the space information network aims to provide a flexible node model that has strong expansibility, can enhance the service ability of the space system, can reduce the construction cost of the spatial information system, and has a multi-dimensional elastic node model. The invention is realized by the following technical scheme: in the model node, the functional service module is divided into a software service sub module and a hardware service sub module including a software algorithm library; the network system module adopts the physical layer, data link layer, network layer, transport layer and application layer which are five ISO protocol network configuration layers corresponding to the space physical platform, so as to use as a parent model of the virtual composition and virtual function; all nodes in the space network realizes different platforms from the spatial information network backbone nodes, indirect access nodes, direct access nodes and functional subnet nodes derived by the parent model through functional interfaces. The lexible node model of the space information network enhances the service ability of the space system through the function decoupling spatial physical platform.

The invention discloses a search space information system method and space information inquire method with the method, which comprises, (1) search dynamic address from web page and store the result to dynamic address database;(2) analyze the addresses and store the addresses existed dynamic space information system to space information system address database;(3) obtain reference information of dynamic space from address database, and build space information index according to built reference information. By the method of this invention, network space information with no any relation and dispersive on physics forms a completed space information system on logic, with good expansion and benefit to all inquire.

The invention provides a space information system based on a SpaceVPX standard, which comprises an information plane, a system management module, a main control module, an exchange module and a function module which are in communication connection with one another, and is characterized in that the information plane is used for providing different data exchange topology networks according to the data transmission rate among internal modules of the system; the system management module is used for providing a management strategy of each module in the system and a communication protocol among themodules; the main control module is used for limiting and controlling each module to execute a corresponding task; the exchange module is used for limiting an interaction relationship among the modules; and the function modules are used for limiting the functions of all the modules. Therefore, the spatial information system aiming at the SpaceVPX standard can be constructed, so that the whole system is more standardized, and the applicability is wider.