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66 results about "Graph data model" patented technology

Graph data modeling system and method for power grid topology management

The invention discloses a graph data modeling system and method for power grid topology management. The method comprises steps of extracting characteristic attribute values of the power grid topologydata; judging the relevance between equipment by using a Pearson product moment correlation coefficient method to form topology association graphs, setting attributes of terminals and edges, forming afirst attribute structure topological graph, a second attribute structure topological graph and a third attribute structure topological graph; and filling service data information, connecting the equipment node information to form unit structures by combining the service priority levels to form unit frameworks with different priority levels, carrying out full-graph data communication on the extracted power grid graph logic model and topological structure by combining the three attribute structures, and mapping to form a power grid topology management graph data model. The modeling problem ofthe power grid topology data in the graph database is solved, the graph database technology is adopted for storing and analyzing the power grid topology data, the power grid topology data can be efficiently and rapidly stored in the graph database, and safe and stable operation of the power grid topology database is guaranteed.
Owner:NANJING UNIV OF POSTS & TELECOMM

Method for rapidly making safeguard risk maps of water resources of China in batches on basis of database drive

The invention discloses a method for rapidly making safeguard risk maps of water resources of China in batches on the basis of database drive. By drive of a basic geographic database, a thematic database and a cartographic coincidence library, thematic maps are updated in batches, including making of legend items, a data preparation process, preparation of thematic data, size and drawing range ofset graphs, expression and displaying of thematic data, map finishing and layout and map outputting. Correction and storage of map target object level are facilitated; data redundancy is reduced; batched updating and multi-expression of maps are facilitated; and meanwhile, a traditional GIS map expression ability is convenient to extend. Integrated management of an attribute database and a graphic database and automatic configuration of a thematic map making data model and drawing symbols are realized, the bottleneck of shortage of thematic symbols, troublesome data updating and the like in existing drawing is improved, and the method is a rapid and effective method for drawing safeguard risk maps of water resources of China in batches, and can provide reference for thematic drawing of development of the national economy of China and national defense construction.
Owner:BEIJING FORESTRY UNIVERSITY +1

Method and device for supporting structured and unstructured big data fusion

The invention relates to a method for supporting structured and unstructured big data fusion. The method includes the steps: creating a multi-element big data fusion model supporting BLOB (binary large object) attribute values based on an attribute graph data model; generating N-element group data from received data by the multi-element big data fusion model supporting the BLOB attribute values; judging that the generated N-element group data are of a BLOB type and storing the BLOB type attribute values at a first preset position; fusing structured and unstructured big data at the first presetposition by controlling mapping between a handle and the data content of the corresponding BLOB type attribute value. The method provides a management model STRUNS for supporting structured and unstructured multi-element data fusion and an implementation system for the STRUNS. The method can be used for integrated management and uniform query of multi-element heterogeneous data including a text type, a Boolean type, a numeric type, a time type and the BLOB type, and a theoretical model and a practical system are provided for big data fusion management. The invention further relates to a device for supporting structured and unstructured big data fusion.
Owner:河北中科开元数据科技有限公司

Information system fault model construction method and system based on graph database

The invention provides an information system fault model construction method and system based on a graph database. The method comprises the steps of obtaining resource data of all resource objects inan information system; constructing a graph data model according to the resource data; when it is monitored that the abnormal information exists in the graph data model, extracting vertex informationand side information corresponding to the vertex generating the abnormal information from the graph data model within preset time; and establishing a fault model of the information system according tothe vertex information and the side information. According to the method and system, the characteristic that the graph database is a non-relational database which is simple, convenient and quick to inquire is utilized to establis a graph data model of the information system; the query time of the relationship between the resource objects can be greatly shortened through graphical design, so thatwhen abnormal information is monitored, the data query time is greatly shortened, the fault model can be accurately and quickly established to assist operation and maintenance personnel in processingsimilar faults, and the fault processing efficiency is improved.
Owner:GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +6

Medical data element automatic classification method and system based on depth map matching

The invention discloses a medical data element automatic classification method and system based on depth map matching. A medical data element graph data model based on minimum metadata information is defined, and the effect of a depth map matching model is also suitable for the condition of local data marsh with extremely low metadata information; the purpose of completing automatic classification of data elements by using the least metadata information is achieved, and meanwhile it is guaranteed that graph structure data collected under the graph data model standard is suitable for training of a depth graph matching model; vector representation of medical data elements is calculated based on a representation learning method, and effective data elements possibly mapped to a standard data model are quickly and automatically screened through classification of the vector representation; and vector representation of column vertexes is calculated based on a graph attention mechanism, and a depth map matching model is constructed to complete automatic classification of medical data elements. The method and the system have good expansibility, and can be applied to processing of various data marsh-to-data lake conversion problems.
Owner:ZHEJIANG LAB

Graph data modeling electric power fingerprint identification method of electrical equipment, storage medium and system

The invention provides a graph data modeling electric power fingerprint identification method of electrical equipment, a storage medium and a system. The method comprises the steps of detecting an input event of the electrical equipment at a power utilization bus in real time, and extracting a plurality of electrical operation features of the input electrical equipment, establishing an association relationship between every two electrical operation characteristics according to a mutual information entropy theory, taking the extracted electrical operation characteristics as nodes, taking an association relationship between every two electrical operation characteristics as edges, and generating electric fingerprint graph data containing the nodes and the edges according to a graph theory, and performing graph representation learning on the electric power fingerprint graph data by using a graph convolutional network, and constructing a mapping relationship between the electric power fingerprint graph data and the electrical equipment to realize load identification. The mapping relation does not need to be determined through a large amount of calculation in the load identification process, and the electrical operation characteristics of the electrical equipment can be directly obtained based on the electric fingerprint graph data, so that the non-intrusive load identification algorithm is simple, the identification speed is high, and the operation efficiency is high.
Owner:广州水沐青华科技有限公司

Internet of Vehicles roadside unit deployment method based on genetic ant colony hybrid algorithm

The invention belongs to the technical field of Internet of Vehicles roadsides, and discloses an Internet of Vehicles roadside unit deployment method based on a genetic ant colony hybrid algorithm, which comprises the following steps: a data acquisition module acquires trajectory data and map data of a vehicle; the model construction module generates a grid chart based on the acquired map data andestablishes a road network model; the parameter setting module sets deployment parameters; the data calculation module uses a genetic ant colony hybrid algorithm to calculate a deployment scheme of the minimum deployment number and the optimal deployment position under the condition of meeting the parameter requirements based on the set deployment parameters; the storage module is used for storing corresponding data by utilizing a database; and the display module displays the vehicle trajectory data, the generated grid chart and the final deployment scheme. According to the invention, the road network model is constructed, and the deployment scheme is determined by using the Internet of Vehicles road side unit deployment method based on the genetic ant colony hybrid algorithm, so that thevehicle coverage rate can be improved, the RSU deployment quantity can be reduced, and the deployment cost can be reduced.
Owner:CHONGQING UNIV OF TECH

Airport surface map database building and data acquisition method

The invention discloses an airport surface map database building and data acquisition method. A set of airport surface drawing database meeting the requirements of Chinese civil aviation business is generated; the. Digital design digitizes of the airport surface map data, can be applied to the fields of civil aviation airport operation, control towers and the like, provides a set of universal UMLmodel for the construction of each airport, and analyzes and standardizes civil airport surface map data items, types, value ranges and the like of civil aviation in China. The method comprises the following steps: establishing an airport surface drawing data UML model; establishing an airport surface drawing database table structure; establishing an airport surface drawing data acquisition tablestructure; constructing an airport surface drawing data acquisition device with; the step of establishing the UML model of the airport surface drawing data comprises of the following sub-steps of: studyingresearching a table structure entity aiming at for an international general standard specification; docking integrating and comparing the international standard with the technical standard of the domestic flight area; studying and analzying an AMXM 2.0 model is researched and analyzed; and designing an airport surface drawing data UML model.
Owner:AVIATION DATA COMM
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