10 results about "GIS applications" patented technology

The invention discloses a GIS development method and system for water conservancy and hydropower digital twinning application, and the method comprises the following steps: building a two-dimensional and three-dimensional GIS general development framework, integrating a two-dimensional and three-dimensional GIS engine, and forming a water conservancy and hydropower two-dimensional and three-dimensional GIS general development platform; based on a water conservancy and hydropower two-dimensional and three-dimensional GIS universal development platform, constructing a water conservancy and hydropower spatio-temporal data base and building a digital twinborn scene; based on a water conservancy and hydropower spatio-temporal data base and a built digital twinborn scene, water conservancy and hydropower related business components and GIS application components are modularly constructed; and integrating a front-end framework, and carrying out visual display and application analysis. According to the method, a water conservancy and hydropower general two-dimensional and three-dimensional development platform is built based on a hydropower two-dimensional multi-engine and a three-dimensional GIS open source engine cesium, and a digital twin space-time base is built on the basis. A mode of'platform + plug-in 'is adopted, business components and water conservancy and hydropower GIS application components are developed in a pluggable component mode, jquery, React and VUE mainstream front-end frameworks are compatible, and visual display and application of water conservancy and hydropower businesses are carried out.

The invention discloses an expressway guardrail model lightweight method and device based on Cesium, and belongs to the technical field of expressway modeling. Building a guardrail BIM model based on the three-dimensional reference polyline, and building a stand column BIM model based on the three-dimensional reference polyline feature points; establishing a guardrail upright column primitive model for the guardrail BIM model and the upright column BIM model, and establishing a guardrail upright column lightweight model package based on the guardrail upright column primitive model; establishing a handrail dynamic modeling module based on Cesium; and calling the guardrail stand column lightweight model package and the handrail dynamic modeling module, constructing a road guardrail lightweight BIM + GIS application scene, and carrying out lightweight processing on the guardrail stand column and the handrail. The processing data volume of the guardrail model can be reduced, the network request and memory consumption are saved, the modeling system performance is improved, the processing time is reduced, the operation efficiency is improved, and the model lightweight is realized.

This invention relates to a method and system for intelligent processing and health assessment of multi-parameter acoustic-vibration data in GIS, belonging to the field of power equipment monitoring technology. The method includes: collecting acoustic signature data, vibration data, and geographic location information from GIS equipment to form a raw acoustic-vibration data stream with geographic tags; writing the raw acoustic-vibration data stream into a storage-computing architecture, sequentially extracting and fusing features from the acoustic signature data and vibration data to obtain a multi-parameter feature matrix with geographic tags; using a lightweight convolutional neural network to infer and label suspected faults on the multi-parameter feature matrix; using a support vector machine (SVM) model to identify faults in the multi-parameter feature matrix with suspected fault labels, obtaining the final fault type and confidence level; and combining equipment runtime, maintenance records, fault frequency, and GIS location information to perform a health assessment of the GIS equipment and classify fault levels. This invention significantly improves the accuracy of GIS fault identification and reduces the operation and maintenance costs of large-scale GIS applications.

The invention provides a vector geographic data efficient visualization method and system based on multi-scale optimization and containerization architecture, and belongs to the field of spatial big data visualization and cloud native GIS application. According to the method, the filling rate of the enclosing rectangles and the number of the vertexes are calculated for the original geographic element data, so that automatic classification of regular elements and irregular elements is realized; and respectively constructing two sets of multi-scale expression systems, and storing four types of multi-scale data tables in a spatial database. A containerized micro-service architecture is adopted, and dependence management and cooperative operation are automatically completed through a container arrangement tool. The vector slicing service dynamically selects a corresponding scale expression according to the scaling level. Through cooperative work of a database trigger, a monitoring service and a cache service, the system can calculate an affected slice number range and execute accurate cache deletion when element attributes are updated, and real-time and on-demand slice updating is realized. The method has the beneficial effects that the visualization performance and updating efficiency of massive vector elements are improved.

The present invention relates to the technical field of GIS application development, and discloses a low-code-based GIS application development method and system, comprising extracting spatial entities, spatial relationships, and spatial behaviors from real scenes, and constructing a demand relationship topology, inputting the demand relationship topology into a network analysis unit, and simultaneously orchestrating workflows, generating multiple candidate processes in parallel from the orchestrated workflows, simulating and deducing multiple solutions, selecting the optimal solution by prioritizing, and if multiple solutions do not meet the requirements, decomposing the orchestrated workflows into fingerprint high-order components, freely combining the fingerprint high-order components, abstracting the high-order components into topological embedding vectors, making components with similar functions adjacent to the topological embedding vectors in vector space, establishing a virtual model to simulate the combination of fingerprint high-order components and injecting virtual random disturbances, outputting the operation results of the high-order components, and triggering the simplification of the high-order components if the operation results fail, thereby achieving efficient GIS application development.

The present application relates to the field of environmental protection, and particularly relates to a system for predicting domestic sewage and garbage based on urban color. The present application aims at the problem of low accuracy and timeliness of output results, and is difficult to accurately and timely grasp the change trend of domestic pollution load. By using the fusion and transformation of high-resolution urban street scene images and satellite remote sensing images, the color, texture and other landscape features in the images are extracted, and based on the deep learning framework, an innovative prediction model framework of domestic pollution load based on image features is constructed, realizing the analysis of the change characteristics of domestic pollution in time and space, fitting the current AI+GIS application scene, and solving the problem of lag and roughness of macro data characteristics such as social development and population statistics. Compared with the traditional model based on social panel statistical data, the present application has the advantages of short time step and strong spatial details.

Described are methods, systems, and techniques to implement an improved map interface that displays updatable geographic information and that enables users to request one or more data products for a geospatial asset corresponding to a region of a geographic area. In some embodiments, a GIS application can be configured to interface with third party geospatial data suppliers that provide different types of data products displayable in the map interface. One or more of these data products can be requested by the user and may be associated with a recurring time interval to provide the user with expanded display views that are up to date and complete.

This application relates to the field of computer information processing, and provides a method for constructing a geographic information system (GIS) application system for digital agriculture, and a computer program product. The method includes: integrating a GIS function with a digital agriculture application demand, and dividing a GIS application for digital agriculture into a plurality of components based on an integration relationship; developing the components separately and constructing a digital agricultural GIS application component library; and selecting a component from the digital agricultural GIS application component library for assembling, and building a navigation module and various functional modules for the GIS application system for digital agriculture to complete construction of the GIS application system for digital agriculture. This application can adapt to various different digital agriculture application scenarios and personalized user demands.

The invention relates to a GIS application technology, in particular to a water network path evaluation method based on a spatial analysis algorithm. According to the method, influence factors, including a line length factor, a tunnel proportion factor, an ecological red line factor, a basic farmland factor, a geological condition factor, a cross building factor and a maximum static pipe pressure factor, of a water network path are selected, and then the influence factors are divided into natural factors and non-natural factors; the calculation data of the natural factors are obtained through geological faults, seismic points or digital elevation model data by a spatial analysis method, and the non-natural factors directly adopt original data; and finally, an index differentiation quantitative scoring algorithm model is determined, different weight values are given according to the importance of the influence factors, and a designer quickly carries out scheme demonstration and adjustment based on the score values. According to the method, the standard of calculation methods of all the influence factors is unified, corresponding evaluation tools, systems or platforms are developed according to the algorithm model, the minute-level water network path adjustment and reevaluation result calculation process can be achieved, multiple times of modification and evaluation work can be carried out in a short time, a large amount of labor cost is saved, and the design efficiency is greatly improved.

A highway guardrail model lightweight method and device based on Cesium belong to the technical field of highway modeling. A guardrail BIM model is established based on the three-dimensional reference polyline, and a stand column BIM model is established based on the three-dimensional reference polyline feature point; a guardrail stand column primitive model is established for the guardrail BIM model and the stand column BIM model, a guardrail stand column lightweight model package is established based on the guardrail stand column primitive model; a guardrail dynamic modeling module is established based on Cesium; the guardrail stand column lightweight model package and the guardrail dynamic modeling module are called to construct a highway guardrail lightweight BIM+GIS application scene, and the guardrail stand column and the guardrail are subjected to lightweight processing. The method can reduce the processing data amount of the guardrail model, save network requests and memory consumption, improve the modeling system performance, reduce the processing time and improve the operation efficiency, and realizes model lightweight.