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1441 results about "Distributed database" patented technology

A distributed database is a database in which not all storage devices are attached to a common processor. It may be stored in multiple computers, located in the same physical location; or may be dispersed over a network of interconnected computers. Unlike parallel systems, in which the processors are tightly coupled and constitute a single database system, a distributed database system consists of loosely coupled sites that share no physical components.

Large model-based standard document automatic generation and multi-dimensional auditing method and system

The invention provides a standard document automatic generation and multi-dimensional auditing method and system based on a large model, and relates to the technical field of artificial intelligence, and the method comprises the steps: 1, building a distributed database of a multi-source document, and analyzing a heterogeneous text through natural language processing to obtain a standardized knowledge network; step 2, extracting index elements based on the standardized knowledge network, and forming a structured parameter library through verification and verification; and step 3, based on the structured parameter library, constructing a template library, analyzing user demands in combination with semantic matching, and automatically generating a standard document outline. The document generation efficiency and quality are improved, the manual auditing cost is reduced, and the auditing comprehensiveness and accuracy are enhanced.
Owner:浙江金汇数字技术有限公司

Charging station operation maintenance method based on multi-dimensional data system

The invention discloses a charging station operation maintenance method based on a multi-dimensional data system, and relates to the field of intelligent optimization, and the method comprises the steps: collecting the operation, environment, user and power grid data of a charging pile, preprocessing the data into JSON, carrying out the real-time analysis and classification through Kafka-Flume, storing the data into a distributed database, building a composite index, and carrying out the retrieval through Presto; after cleaning, combining GraphQL and a graph query language to construct a space-time atlas, and extracting a multi-dimensional feature vector; a digital twinborn model is generated, multi-source data are fused through virtual-real mapping, and residual correction and reinforcement learning optimization are combined; fusing multi-modal data by using a hypergraph neural network, and optimizing topology in combination with an entropy regularization multi-target strategy and meta-learning; power is dynamically distributed, LSTM-GAN predicts and positions faults, and PID regulates and controls output; and the block chain contract automatically triggers equipment freezing and power limiting, and on-chain data feedback optimizes scheduling and load balancing. According to the invention, through multi-dimensional data fusion and a dynamic optimization mechanism, the operation and maintenance accuracy and response efficiency of the charging station are significantly improved.
Owner:YANTAI STATE GRID ZHONGDIAN ELECTRIC CO LTD +1

Automatic tax declaration and recheck system

The automatic tax declaration and recheck system comprises a character recognition module, a process automation module, a dynamic rule engine module, a block chain evidence storage module and a distributed database. The character recognition module forms a tax field signal, a structured signal and a semantic tag signal. And the process automation module forms a tax declaration form according to the tax field signal. And the dynamic rule engine module receives the structured signal, performs multi-dimensional verification through a machine learning model, and forms a verification signal. The block chain evidence storage module comprises a distributed database, and the block chain evidence storage module receives the semantic tag signal and forms a unique hash value. And the distributed database performs feature fusion on the unique hash value, the tax declaration form and the verification signal to form a declaration signal and stores the declaration signal in the distributed database. According to the automatic tax declaration and rechecking system, the problem that structural analysis of multi-format tax documents is difficult can be solved.
Owner:JILIN COMM POLYTECHNIC

Industrial odor online monitoring system based on big data

The invention discloses an industrial odor online monitoring system based on big data. The system comprises a data acquisition module, a preprocessing module, a feature fusion module, a multi-source sensing weight analysis module, a dynamic risk assessment module, a self-adaptive correction module and a real-time feedback module. Data interaction among the modules adopts a block chain encryption transmission protocol, and a feature evaluation mapping chain with a timestamp is established in a distributed database. Through the innovative design of heterogeneous sensor network collaborative perception, cross-modal feature organic fusion, pollution diffusion three-dimensional dynamic deduction and a credible data governance architecture, a new industrial bad smell monitoring normal form with environment intelligent adaptability is constructed. The four technical effects form complementary support from four dimensions of data acquisition credibility, feature modeling scientificity, risk assessment accuracy and system decision robustness.
Owner:SHENZHEN YIFAN TECH CO LTD

E-commerce intelligent recommendation system based on user behavior big data

The invention relates to the technical field of e-commerce intelligent recommendation, in particular to an e-commerce intelligent recommendation system based on user behavior big data, which comprises a data acquisition and storage unit, a data preprocessing unit, a model construction training unit and a recommendation generation and output unit. The method comprises the steps that data such as user behaviors, equipment, geographic positions and access time are collected and stored in a distributed database, a data preprocessing unit extracts the data, constructs a user behavior sequence and encodes commodity and behavior characteristics, and a model construction training unit obtains user interest vectors by using a long and short-term memory network in combination with an attention mechanism; model parameters are updated with the help of a deep Q network, commodities are screened, sorted and displayed by a recommendation generation and output unit according to interest vectors, meanwhile, a feedback optimization system is collected, recommendation accuracy is improved, user shopping experience is enhanced, and an e-commerce platform is assisted to improve operation efficiency and commodity sales conversion rate.
Owner:YIWU JUNNAI JEWELRY CO LTD

AI scheduling optimization method for clothing flexible production and ERP integrated system

The invention relates to the technical field of clothing manufacturing, in particular to an AI scheduling optimization method for clothing flexible production and an ERP integrated system. Comprising the following steps: multi-source heterogeneous data acquisition and fusion: acquiring real-time equipment state data of a clothing production line through Internet of Things equipment, wherein the real-time equipment state data comprises a sewing machine rotating speed, a cutting bed load rate and a quality inspection station abnormal signal; obtaining an order delivery period, a material inventory and a BOM process path through an ERP system; the equipment data and the order data are stored in a distributed database after being aligned through timestamps; dynamic priority modeling: constructing a dynamic priority calculation model based on the order emergency degree, the production line bottleneck process load threshold and the material neat rate, and generating an order-insertable process-level priority queue; according to the scheme, the limitation of a traditional method can be broken through, and the modern production requirements of flexibility and high aging are met.
Owner:GUANGDONG CONGJIAN INTELLIGENT TECHNOLOGY CO LTD

Distributed database-oriented compensating transaction implementation method

The present application discloses a distributed database-oriented compensating transaction implementation method. The method specifically comprises: a client initiates a transaction request, and determines, by means of an execution directory, whether a transaction SQL exceeds a limit value (S1); a coordination node allocates a timestamp to a transaction initiated by the client in step S1, and simultaneously sends a related operation of the transaction to a data node (S2); upon receiving the transaction request, the data node determines whether to commit or roll back the transaction, and returns an execution result to the coordination node for confirmation and verification, and if the verification fails, the coordination node notifies the data node and performs a compensation operation (S3); and when the operation is completed, the coordination node commits the transaction, performs regular cleaning, and returns the execution result to the client (S4).
Owner:CHINA TELECOM CLOUD TECH CO LTD

Multi-platform store normalization method

The invention discloses a multi-platform store normalizing method, which relates to the technical field of computers, and comprises the following steps: extracting a standardized data set through a multi-modal feature extraction technology to generate a multi-platform feature vector; the feature vectors of the multiple platforms are input into a multi-algorithm fusion engine, parallel matching calculation is executed, meanwhile, a dynamic weight distribution mechanism is designed, normalized platform IDs and a cross-platform mapping relation table are output, and a matching confidence report is generated; a normalization result is stored in a distributed database based on a block chain, an incremental synchronization mechanism is designed, data are divided and stored according to geographic areas, node loads are dynamically distributed through a consistent Hash algorithm, and updated normalized platform data are obtained; through a multi-modal feature extraction technology and a multi-algorithm fusion engine, deep mining of a standardized data set is realized, an accurate feature vector set is generated, and the accuracy of cross-platform data matching is remarkably improved.
Owner:ZHEJIANG PISTACHIO SHUZHI TECH CO LTD

Distributed database management method and system based on artificial intelligence

The invention is suitable for the technical field of database management, and provides a distributed database management method and system based on artificial intelligence. The system comprises a database content analysis module, a storage layout adjustment module, an anomaly detection module, an unmanned aerial vehicle storage communication module, an access request guide module and an unmanned aerial vehicle node recovery module. The scheme that an unmanned aerial vehicle is adopted as a storage and communication node brings remarkable innovation and multiple advantages to a distributed database management method. Firstly, the mobility of the unmanned aerial vehicle enables the unmanned aerial vehicle to quickly take over a data storage task when a network is interrupted or a node fails, so that the integrity and availability of data are ensured, and the response capability in a traditional architecture is relatively limited. In complex scenes such as disaster recovery or remote area deployment, the unmanned aerial vehicle can break through network limitation through off-line transmission, and data safety and storage continuity are effectively guaranteed.
Owner:ZHEJIANG AIKE INTELLIGENT TECH CO LTD

Yellow River upstream main stream reservoir dam group section multi-disaster big data early warning system and method

The invention relates to a Yellow River upstream main stream reservoir dam group section multi-disaster big data early warning system and method. A geological disaster monitoring module obtains surface displacement and deformation data, low-altitude remote sensing data and high-resolution remote sensing image data in real time; the data processing and storage module performs cleaning, space-time alignment and semantic mapping on the multi-dimensional monitoring data based on an ETL technology to form a standardized data set, and stores the standardized data set in a distributed database; the multi-disaster early warning calculation module triggers a specific disaster model according to spatial-temporal characteristics of input data, and performs single-disaster risk probability calculation and cross-disaster risk superposition probability analysis; the early warning issuing module can convert the calculation result into early warning information and send the early warning information to an early warning department in real time; and the real scene display module can convert a disaster risk early warning result into a visual three-dimensional scene. According to the invention, the early warning timeliness of the sudden disaster chain can be effectively improved, and the whole-process intelligent management from data acquisition to emergency response and the accurate prediction of the disaster chain are realized.
Owner:YELLOW RIVER INST OF HYDRAULIC RES YELLOW RIVER CONSERVANCY COMMISSION

Managing digital artifact access using agentic artificial intelligence models

Systems and methods disclosed herein automatically authorize, audit, and manage usage of protected digital content via agentic artificial intelligence (AI) models. A data access / usage request is received (e.g., from a graphical user interface) that is associated with digital assets licensed from third parties. The system uses a first AI agent set to identify the digital content and retrieve corresponding access policies from a distributed database. The system uses a second AI agent set (same as or different from the first AI agent set) to evaluate the request against the retrieved policy to generate a permission set and / or settlement instructions. The system uses a third AI agent set (same as or different from the first and / or second AI agent sets) to embed digital watermarks and / or cryptographic signatures into the accessed content, and to record an audit trail of access, authorization, and / or settlement events in a distributed ledger or database.
Owner:CITIBANK N A

Data acquisition and analysis system for network big data information analysis

The invention relates to the technical field of big data processing, in particular to a data acquisition and analysis system for network big data information analysis, which comprises a data acquisition module, a data preprocessing module, a data storage module, a data analysis module and a data visualization module, wherein the data acquisition module is used for acquiring original data from various data sources in real time through a network interface; the data preprocessing module is used for preprocessing the original data; the data storage module is used for carrying out storage and management by adopting a distributed database; and the data analysis module is used for performing deep analysis by applying a machine learning algorithm and a data mining technology to generate a trend prediction result. According to the method, real-time acquisition, automatic preprocessing, distributed storage and multi-algorithm fusion analysis of the multi-source data are realized, so that the problems of low data quality, poor processing efficiency, model isolation and the like in the prior art are solved, and the precision, efficiency and decision support capability of big data analysis are remarkably improved.
Owner:HUAIAN XINGHE INTELLIGENT TECHNOLOGY CO LTD

Big data driven network operation state monitoring management method and system

The invention discloses a big-data-driven network operation state monitoring management method and system, and relates to the technical field of digital information monitoring, and the method comprises the steps: building a distributed database, storing multi-modal data from network equipment, link states, user behaviors and security logs, carrying out the time synchronization and semantic association of the multi-modal data, and storing the multi-modal data in the distributed database; constructing an abnormal state multi-dimensional association graph; a multi-level collaborative network is used for collaborative recognition, an additional abnormal result is generated by combining abnormal positioning and time sequence prediction, finally, a recognition result is compensated, and network state early warning is generated. According to the invention, the technical problems of insufficient network anomaly detection precision and early warning lag caused by incapability of effectively integrating multi-modal heterogeneous data and adapting to a dynamically changing network environment in real time in the prior art are solved, and multi-modal data fusion and multi-level collaborative analysis driven by big data are achieved. The technical effects of accurate network anomaly detection and prospective early warning are achieved.
Owner:SHANDONG XUNLING INFORMATION TECH CO LTD

E-commerce product inventory management method based on machine vision

The invention belongs to the technical field of product inventory management, and discloses an e-commerce product inventory management method based on machine vision, which realizes a full-automatic process of product information from acquisition, recognition to statistics by means of a machine vision technology, acquires images in real time from multiple angles by a high-definition industrial camera, inputs the images into a CNN model to extract features after preprocessing, and realizes product inventory management. Through accurate identification classification and quantity statistics, manual intervention of inventory and data entry is not needed; through the automatic inventory management process, the manpower cost expenditure of manual checking, data processing and the like is greatly reduced, and the personnel employment and training cost is reduced. And on the other hand, historical data is deeply mined by using algorithms such as time sequence analysis, the sales trend and the inventory demand are accurately predicted, the replenishment strategy is optimized, capital and storage space occupation caused by inventory overstock is avoided, meanwhile, order loss caused by stockout is prevented, and in addition, a distributed database storage technology ensures data reliability, and the efficiency is improved. And extra cost caused by data errors is reduced.
Owner:GUICHANG TECH (BEIJING) CO LTD

Lithium battery full life cycle quality tracing system based on digital twinning

The invention discloses a lithium battery full life cycle quality tracing system based on digital twinning, and relates to the technical field of lithium battery quality tracing, and the system comprises a physical entity layer which integrates multiple types of sensors and detection equipment to collect full-link data; the digital twinning modeling layer is used for constructing a multi-scale model to map a battery state; the data acquisition and transmission layer is used for realizing data real-time transmission preprocessing through an edge gateway and an encryption protocol; the data storage and management layer is used for establishing a data warehouse by using a distributed database and performing backup; the intelligent analysis and decision-making layer integrates an algorithm to realize anomaly detection, performance prediction and tracing; the visualization and interaction layer is used for providing a multi-terminal visualization and interaction function; and the block chain evidence storage layer constructs an alliance chain to ensure that the data cannot be tampered. According to the invention, full-life-cycle data connection and credible tracing of the lithium battery are realized, the quality problem positioning efficiency is improved, intelligent early warning and optimization capabilities are provided, the operation threshold is reduced, and industrial quality control and green development are facilitated.
Owner:HENAN POLYTECHNIC +1

Data acquisition method and device of industrial Internet of Things, and storage medium

The invention relates to the field of technical data acquisition, and particularly discloses a data acquisition method and device for an industrial Internet of Things and a storage medium, and the method comprises the following steps: S1, constructing a dynamic sensor network, and collecting the operation data of industrial equipment in real time through a multi-modal sensor; s2, dynamically adjusting a data acquisition frequency # imgabs2 # based on an environment noise coefficient # imgabs0 # and an equipment health index # imgabs1 #; s3, performing hierarchical compression and encryption on the acquired data, and allocating a compression rate # imgabs4 # and encryption strength # imgabs5 # according to data type importance # imgabs3 #; s4, executing load balancing through an edge computing node, and distributing a computing task to an optimal node; and S5, storing the processed data into a distributed database according to spatial-temporal correlation, and generating a multi-copy disaster recovery index. Through dynamic acquisition, intelligent processing, optimized storage and adaptive strategy adjustment, accurate and efficient data acquisition is realized, data security and processing performance are flexibly guaranteed, storage query efficiency and disaster tolerance capability are improved, and storage resources are utilized to the maximum extent.
Owner:CHENYANG CHENGSHUO ELECTRONIC TECHNOLOGY CO LTD

Mechatronics product detection system based on artificial intelligence image recognition technology

The invention discloses a mechatronics product detection system based on an artificial intelligence image recognition technology, and relates to the technical field of artificial intelligence and mechatronics, and the mechatronics product detection system comprises an image acquisition module, a preprocessing module, a feature extraction module, a defect recognition module, a data management module, a result output module and a system control module, the preprocessing module has the functions of adaptive zooming and intelligent obstacle avoidance, and processes images by using a deep learning algorithm and a quantum filtering technology; a deep convolutional neural network is used for feature extraction, SVM and CNN are combined for defect recognition, a meta-learning mechanism is introduced, a distributed database and federated learning are adopted for data management, AR navigation and gesture interaction is used for result output, and a block chain intelligent contract is used for system control to deploy resources. The method has obvious advantages and high detection precision, and can accurately identify tiny and hidden defects; efficiency is greatly improved, and edge and cloud computing are combined to reduce processing time; operation is convenient, VR, AR and voice interaction are used, and the maintenance efficiency is improved.
Owner:HENAN POLYTECHNIC

Dynamic tool integration method and system for intent-driven AI dialogue system

The invention provides a dynamic tool integration method and system for an intention-driven AI dialogue system, and the method comprises the steps: S5, extracting resource occupation information from a transaction log according to a state persistence record, carrying out the resource release and temporary context cleaning of each heterogeneous component, and obtaining a released resource list; s6, searching a breakpoint state snapshot and a transaction log from the distributed database according to the released resource list, and reconstructing a tool chain execution flow historical state to obtain a fault context analysis result; and S8, according to the context recovery state and the semantic feature vector, updating a tool chain execution stream, and reallocating computing resources through a heterogeneous component coordination mechanism to obtain a task continuity confirmation result. According to the method, the recovery efficiency and the resource utilization rate of the tool chain in an abnormal scene are remarkably improved, and the task continuity and the system robustness in a high-concurrency environment are guaranteed.
Owner:GUANGDONG SANDING INTELLIGENT INFORMATION TECH CO LTD

Flexible automatic production management and control system of new energy high-power high-frequency transformer

The invention discloses a flexible automatic production management and control system for a new energy high-power high-frequency transformer, and relates to the field of production management and control, the flexible automatic production management and control system comprises a production demand receiving module, a production resource management module, a production planning module, a production execution module and a quality control module, an order is received through an API or EDI, and a work order is generated; collecting equipment and material information in real time, and constructing a production resource association network; carrying out production scheduling and process matching by adopting an improved deep learning model; scheduling materials, procedures and equipment based on a multi-level analysis control model; the quality is evaluated by using a two-dimensional cloud model, and data recording is performed through a distributed database, so that the traceability of the quality problem is ensured. According to the system, the production efficiency and the quality management level are effectively improved, the problem that existing rigid automatic equipment lacks flexibility is solved, and efficient and accurate production of the new energy high-power high-frequency transformer is ensured through cooperative work of a plurality of modules so as to meet different production requirements.
Owner:GUANGDONG RUIGE PRECISION TECHNOLOGY CO LTD

Distributed database fault diagnosis and self-healing method and system based on AI

The invention provides an AI-based distributed database fault diagnosis and self-healing method and system, and relates to the technical field of AI. The method comprises the steps of obtaining real-time monitoring data, determining potential fault features by using an attention mechanism, constructing a fault association map to judge fault types, generating a self-healing strategy, and executing the strategy after parameters are optimized and repaired through a deep Q network. According to the method, fault root causes can be accurately identified, automatic fault repair is realized, the stability and availability of a database system are improved, manual intervention is reduced, and the operation and maintenance cost is reduced.
Owner:NANJING XINREN SOFTWARE TECHNOLOGY CO LTD

Digital twinborn modeling system for wind power plant and use method

The invention belongs to the technical field of wind power generation, and discloses a wind power plant digital twin modeling system and a use method, the system comprises an equipment module, the equipment module comprises a biological bionic adaptive fan blade system, a quantum sensing network, a laser radar system, a high-resolution multi-modal imaging system and an intelligent autonomous flying robot group system; the network module comprises a 5G private network, a quantum communication network and an edge computing network; the data module comprises a distributed database system, a big data processing platform and an AI training platform; the AI module comprises a wind regime prediction model, a power prediction model, an equipment health state monitoring model and a self-adaptive control algorithm model; the application module comprises a digital twinborn visualization platform, a holographic mixed reality operation and maintenance system and an intelligent scheduling system. Modeling and intelligent management of the wind power plant can be realized, the power generation efficiency can be improved, the operation and maintenance cost can be reduced, and the service life of equipment can be prolonged.
Owner:PENGLAI WIND POWER BRANCH OF HUANENG SHANDONG POWER GENERATION CO LTD +1

Cargo transportation background business management method and system and electronic equipment

The invention discloses a general cargo transportation background business management system and method and electronic equipment, the system comprises a data acquisition module, an information management module, a position tracking module and a scheduling management module, and automatic acquisition of cargo position, attribute and safety inspection information is realized through an integrated sensor, an RFID tag technology and an image identification device; the GPS positioning and local wireless network complementary correction technology is utilized to break through the positioning precision limitation in the indoor and outdoor complex environment; based on a distributed database and a real-time data processing engine, high-concurrency query and dynamic information updating are supported; in combination with cargo state and position data, an optimization scheduling instruction is generated through an algorithm, empty driving waiting of loading and unloading equipment is reduced, the method covers intelligent scheduling processes of multi-source data acquisition, standardized processing, real-time tracking and cloud driving, full-life-cycle automatic management of cargos is realized, and electronic equipment realizes full-life-cycle automatic management through a software and hardware collaborative architecture. An existing port management system is compatible, and deployment cost is reduced.
Owner:RUHE (QINGDAO) DATA TECHNOLOGY CO LTD

Propolis component intelligent identification and traceability system and method

The invention discloses an intelligent propolis component identification and traceability system and method, and relates to the technical field of computer vision and mode recognition, and the system comprises a data collection module which collects spectrum and chromatographic data and traceability information of a production place, processing and the like; the data preprocessing unit is used for eliminating overlapping peaks, normalizing data and synchronizing timestamps through filtering and baseline correction denoising; the component feature extraction module is used for screening 10 spectral feature peaks, calculating chromatographic features, and reducing the dimensions to 32 dimensions through principal component analysis after splicing; the intelligent identification module is used for judging the purity level and the confidence degree by using a CNN-LSTM model; according to the traceability management module, a block chain stores full-link information, and a distributed database manages query permissions; and the result output module is used for visually displaying the result and triggering an alarm when the confidence degree or the traceability integrity does not reach the standard. The multi-source fusion improves the identification precision, the model can be updated online to adapt to a new scene, and the propolis quality and the market order are efficiently guaranteed.
Owner:BEIJING ZHIFENGTANG PROD LTD

Water pollution monitoring method and device based on intelligent sensor

The invention discloses a water pollution monitoring method and device based on an intelligent sensor, and the method comprises the steps: collecting the real-time water temperature, pollutant concentration and environmental parameter data of a water body through a sensor network, and storing the data into a distributed database to form a multi-dimensional time series data set; a feature extraction and dimension reduction module is used for obtaining key feature vectors, a potential pollution event marking module is used for screening out a preliminary event candidate set, and an event detection model is trained by means of a random forest algorithm. And when the model judges that a pollution event occurs and the confidence reaches the standard, generating an early warning signal. The water temperature abnormal trend is predicted through a long and short term memory network, Kalman filtering smoothing processing is carried out, finally, a pollution event early warning report is generated according to abnormal points in a stable water temperature change trend sequence, and efficient and accurate monitoring and early warning of water pollution are achieved.
Owner:HUBEI YITONG CONSTR ENG CO LTD

Highway bridge intelligent maintenance decision-making system and decision-making method

The invention provides a highway bridge intelligent maintenance decision-making system and decision-making method. The system comprises a data acquisition module, a processing and storage module, a bridge condition evaluation module, a maintenance decision making module, an implementation and management module, and a monitoring and feedback module. The data acquisition module collects various types of data of bridges, environments, traffic and the like through multiple means such as fiber bragg gratings and vibration sensors. And the processing and storage module cleans the data by using a DBSCAN algorithm, processes the classified data by one-hot coding, and constructs distributed database storage based on a block chain. And the evaluation module adopts an Isomap algorithm to evaluate technical conditions and predict diseases. And the decision module generates a scheme by using a particle swarm optimization-simulated annealing algorithm, and analyzes and optimizes by using an analytic hierarchy process-grey clustering. And maintenance implementation is managed by means of a BIM model. The monitoring module collects data in real time and feeds back an adjustment strategy. The system can acquire data in real time through multiple sensors, accurately process data, accurately evaluate diseases, optimize maintenance decisions, dynamically adjust strategies, guarantee bridge safety and prolong the service life.
Owner:GUIZHOU QIANTONG ENG TECH CO LTD

Rice field irrigation control method

The invention discloses a rice field irrigation control method, and belongs to the field of rice field irrigation, and the method comprises the steps: obtaining soil humidity, water level and meteorological data from a rice field through a sensor network, storing the data in a pre-established distributed database, and obtaining a multi-source data set; according to the data set in the unified format, key features of soil humidity, water level and meteorological data are extracted by adopting a principal component analysis method, and a feature vector set is obtained; if the water consumption of the predicted irrigation scheme exceeds a preset threshold value, the scheme is optimized and adjusted through a linear programming algorithm, and an optimized irrigation scheme is obtained; according to the optimized irrigation scheme, the water consumption in the irrigation process is monitored in real time through flow meter equipment, and accurate measurement data are obtained; and the accurate measurement data is distributed through a quota management module, a regional water resource allocation scheme is generated by adopting a dynamic quota algorithm, and a quota management result is obtained.
Owner:FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI +1

Dynamic-ledger-enabled edge-device query processing

A method for processing a query for data stored in a distributed database includes receiving, at an edge device, the query for data stored in the distributed database from a query device. The method includes causing, by the edge device, the query to be stored on a dynamic ledger maintained by the distributed database. The method includes detecting, by the edge device, that summary data has been stored on the dynamic ledger. The method includes generating, by the edge device, an approximate response to the query based on the summary data stored on the dynamic ledger. The method includes transmitting, to the query device, the approximate response.
Owner:STRONG FORCE VCN PORTFOLIO 2019 LLC

Database cluster partition operation method and device in network partition scene and medium

The invention relates to the technical field of distributed data storage, and discloses a database cluster partition operation method and device under a network partition scene and a medium, and the method comprises the steps that a multi-master distributed database cluster is constructed, and each node continuously captures a database native transaction log; obtaining change event data, and performing unified data storage; analyzing the original log into structured data, and executing uniform fragmentation and parallelization processing; processing the block log change record, and arranging change events of the primary key according to a rule; executing conflict processing and data synchronization, and synchronizing all nodes after the conflict is solved; through exception handling and fault tolerance, self-healing is realized and data consistency is maintained. According to the method, millisecond conflict identification and data consistency convergence after network disconnection can be realized, continuous and stable operation of a cluster in a partition state is ensured, and self-healing and continuous availability of a system are realized.
Owner:CALCULATION AERODYNAMICS INST CHINA AERODYNAMICS RES & DEV CENT

Multi-database deployment method based on server cluster

The invention relates to the technical field of computers, and discloses a multi-database deployment method based on a server cluster, which comprises the following steps of: distributing transaction state information for each database node, and realizing data consistency among the nodes in the database cluster by utilizing a consistency operator; a data synchronization path is optimized according to the topological structure between the nodes, and an optimal path is selected to reduce data transmission delay; the synchronization data volume is reduced through an increment synchronization and redundancy elimination method; designing and implementing a fault recovery strategy to ensure that the normal operation of the system is rapidly recovered when the database node has a fault; and dynamically adjusting a synchronization strategy and a consistency level of the database cluster according to a system load condition. By adopting the technical scheme based on transaction state vector allocation and consistency operator mapping, the technical effect of efficiently realizing data consistency in a distributed database environment is achieved. The problems that the consistency maintenance efficiency is low and data conflicts are prone to occurring in a high-concurrency scene are solved.
Owner:BEIJING HANXINSHENG TECH CO LTD

Method for constructing disease feature recognition and evaluation model based on Internet of Things

The invention relates to the technical field of model construction, in particular to a construction method of a disease feature recognition and evaluation model based on the Internet of Things. The method comprises the following steps that multi-modal physiological data of a patient are collected in real time through Internet of Things medical equipment, data preprocessing is conducted on the multi-modal physiological data of the patient, standard patient physiological data are generated, and the standard patient physiological data are stored in a distributed database; extracting gene sequencing data based on the biological sample library; performing global health risk factor perception on the standard patient physiological data to generate user level health risk perception data; and carrying out feature fusion on the user level health hazard perception data and the gene sequencing data to construct a disease feature matrix containing a space-time dimension. Through multi-modal data fusion, spatio-temporal evolution modeling, deep learning architecture and personalized risk assessment, the precision and timeliness of disease feature recognition assessment model construction are improved.
Owner:THE SECOND XIANGYA HOSPITAL OF CENT SOUTH UNIV