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496results about How to "Guaranteed scalability" patented technology

Data correlation query method and data correlation query device

The invention provides a data correlation query device and a data correlation query method. The data correlation query device comprises a data acquisition unit, an SQL (structured query language) execution unit, a cache number-picking formula construction unit and a cache execution unit. The data acquisition unit is used for obtaining a fundamental field of a fact table and selecting a field of a dimension table based on the fundamental field to be used as an correlation field for correlation of the fact table and the dimension table; and the SQL execution unit is used for implementing query operations through SQL statements based on the fundamental field and a datasheet with the fundamental field, and obtaining a result set; the cache number-picking formula construction unit is used for obtaining a main key value corresponding to the correlation field from the result set, and constructing a cache number-picking formula in combination with a data path with the correlation field; and the cache execution unit is used for obtaining the value of the correlation field according to the cache number-picking formula and combining the value of the correlation field and the result set to obtain final query results. The fact table and the dimension table can be associated efficiently, results can be implemented efficiently, the fatal pressure on the system caused by correlation query of the fact table and the dimension table with a large number of data can be avoided, and the efficiency can be improved.
Owner:YONYOU NETWORK TECH

Real-time monitoring system and method applied to software system

The invention provides a real-time monitoring system for a software system. The monitoring system is configured in a software system server and used for collecting log information generated by operation of the software system. The monitoring system comprises a log collecting module, an information system, a streaming type computing platform, a data storage module, an alarm module and a configuration management module. The log collecting module is used for screening and processing generated logs in real time and transmitting the logs selected to be monitored and alarmed to the information system; the information system is used for receiving the monitored logs transmitted by the log collecting module, and transmitting the logs needing to be monitored and alarmed to the streaming type computing platform according to a route rule; the streaming type computing platform is used for processing the logs one by one in a streaming data processing mode, and judging whether to need to record, alarm or notify the abnormal alarm situation to a related principal of the system according to log alarm levels; the data storage module is used for processing data information generated in the real-time monitoring process persistently and namely storing the data information into a database or a file system.
Owner:FOCUS TECH

LX I embedded type reconfigurable general test platform capable of being used for on-site test

The invention discloses an LX I embedded type reconfigurable general test platform capable of being used for an on-site test. The test platform mainly comprises a core control unit, an FPGA integrated test unit, an instrument function unit, a test program set, a Web server and the like. Modularized hardware design is reliably and tightly connected with a function module through a compact and firm portable machine box. The core control unit finishes control and communication of a whole system. The integrated test unit mainly completes logic functions of test instruments. The instrument function unit mainly completes conversion of signals. On the basis of LX I standard design, the test platform has multiple communication modes, is suitable for mobile tests, and facilitates secondary development. Hardware is designed in a modularized mode, and is compact in structure, small in size and low in weight. Software meets standards such as IVI, SCPI, ATML and the like, and is strong in generality. The instruments have the strong data processing ability and have functions of multi-channel parallel testing and online reconfiguration of the hardware and the software. What is needed is a browser during use of the instruments, the instruments can be operated remotely and the online reconfiguration of the instruments is achieved.
Owner:BEIHANG UNIV

Distributed file system facing to cloud storage

InactiveCN102420854AImprove parallel processing performanceOvercoming high load problemsTransmissionSpecial data processing applicationsSingle pointMetadata service
The invention provides a distributed file system facing to cloud storage, mainly aiming at solving the problem that the existing cloud storage system is low in performance and reliability, high in load and invalid in a single point. The system comprises a block data service layer, a metadata service layer and an application client layer, wherein the metadata service layer replaces single metadata server in a global file system (GFS) by a plurality of agent servers, and forms into peer-to-peer type service network by adopting peer-to-peer P2P network configuration; the interaction among three layers of the system comprises the following steps: the application client layer requests to write to the metadata service layer, and the metadata service layer returns block data server information; and the client layer writes the file into the block data service layer and performs the redundancy backups according to a returned result, and the metadata service layer generates metadata according to a backups result and updates local metadata and a vector clock. Therefore, the performance and the business support capacity of the existing cloud storage system can be enhanced, and the system can be used for designing and optimizing the high-performance and high-reliability cloud storage system.
Owner:XIDIAN UNIV

Master node, slave node, system and method for mirror image management of distributed container cluster

The invention discloses a distributed container cluster mirror image management master node, slave nodes, a system and a method, wherein the main node comprises a mirror image database which is a distributed database and is used for storing node information of all nodes in the system; the request input module is used for receiving request content including a request target and command execution content; mirror image management module, the verification module is used for communicating the password and verifying whether the request content acquired by the request record input module is legal; ifit is judged that a request target in the request content is a specified single slave node or grouped slave nodes, sending a communication password and command execution content including a pulling operation, an updating operation, a deleting operation and a cleaning operation to IP addresses corresponding to the slave nodes; and receiving the state feedback content sent by the slave node. According to the invention, the flattening management of the container cluster mirror image is realized, the management efficiency of the cluster container mirror image in a distributed system is improved,and the high reliability and safety of the whole cluster are improved.
Owner:NANJING UNIV OF POSTS & TELECOMM

Real-time processing platform for ultra high resolution remote sensing images based on functions of FPGA and DSP

The invention discloses a real-time processing platform for ultra high resolution remote sensing images based on functions of an FPGA and a DSP. The real-time processing platform mainly comprises an image acquisition module, an image preprocessing module and a remote sensing image core processing module, wherein the image acquisition module consists of a fiber coupling sensor and a Cmos image sensor; the image preprocessing module consists of a field programmable gate array (FPGA) chip, an SRAM memory and a Flash memory, and the SRAM memory and the Flash memory are connected on the FPGA chip; and the remote sensing image core processing module consists of a digital signal microprocessor (DSP) chip, a high-speed SDRAM memory and a Flash memory, and the high-speed SDRAM memory and the Flash memory are connected on the DSP chip. The invention supports high resolution images; because of high integrated level control, the effectiveness and instantaneity of the system are greatly improved; the hardware adopted by the invention has simple and flexible framework and stronger generality, and is suitable for modular design, thereby being capable of improving the efficiency of the algorithm; and simultaneously, the invention has short development period and the system which is easy to be maintained and expanded, and is specially suitable for high-speed real-time image signal processing.
Owner:SHANGHAI MARITIME UNIVERSITY

Internet-based catering and amusement management system and electronic menu and ordering method thereof

The invention discloses a catering and amusement management system and a special electronic menu and a self-help ordering method thereof. The internet-based catering and amusement management system comprises a remote data service unit, a remote application service unit, at least one catering and amusement shop operating unit and an access terminal unit, wherein the remote data service unit is used for the collective and concentrated storage of data from the units in the system; the remote application service unit is used for acquiring the data from the units, analyzing and processing the data collectively, distributing the data to the units and providing an internet-based catering management application service module; the at least one catering and amusement shop operating unit is used for the daily operation of a catering and amusement shop and the data interaction with the remote data service unit; and the access terminal unit is used for accessing the corresponding catering management application service module according to the right distributed by the remote application service unit. The system has high data safety, remote management, convenient and quick maintenance, low system maintenance cost and good augmentability, and can be simultaneously applied to the management of a plurality of catering and amusement shops with different brands.
Owner:杭州因餐信息技术有限公司

A virtual debugging system based on an OPC UA industrial communication protocol

ActiveCN109831354AOvercome the problem of not being able to connect multiple types of devicesSolve the problem of obtaining specified data in real timeProgramme-controlled manipulatorData switching networksInteraction layerSimulation
The invention discloses a virtual debugging system based on an OPC UA industrial communication protocol. Modules of the virtual debugging system are mainly divided into a data acquisition layer, a data interaction layer and a simulation equipment layer. The data acquisition layer comprises an industrial robot, a PLC and an OPC UA acquisition module; the data interaction layer comprises a data processing module, a Redis database module and an interaction interface module; the simulation equipment layer comprises a RoboDK simulation robot and a RoboDK simulation machining center; the data acquisition layer acquires output data of the PLC and the industrial robot through an OPC UA protocol, transmits the data as input to the data interaction layer, and writes the data transmitted by the datainteraction layer into equipment; the data interaction layer transmits data into the simulation equipment layer according to a data address configured by the interaction interface module and transmitsthe data of the simulation equipment layer to the data acquisition layer; the simulation equipment layer transmits data of the data interaction layer to the simulation model through an API, and transmits a signal of simulation equipment to the data interaction layer; and the system completes a virtual debugging function by controlling input and output of the simulation equipment.
Owner:ZHEJIANG UNIV OF TECH

Working electrode for implementing electro-chemical test of high-temperature high-pressure water solution system

The invention relates to a working electrode for realizing the electrochemical test of high temperature high pressure water solution system and a preparation technology thereof, belonging to the electrochemical test field of high temperature high pressure water solution. The working electrode is composed of a core component and a sealing component, wherein the insulation unit of the core component is composed of a high temperature part and a low temperature part; the high temperature part is made from corundum tube and is penetrated by a working electrode wire, and the port of the high temperature is sealed with the working electrode wire via high temperature glue; the low temperature part is made from polytetrafluoroethylene tube and is penetrated by a working electrode wire, the port of the low temperature part is sealed with the working electrode wire via high temperature epoxy resin; the high temperature part and the low temperature part are sealed by high temperature epoxy resin; the electrode and a high pressure autoclave are sealed of high temperature and high pressure via the sealing component. The electrode prepared by the technology has high sealing performance, resists high temperature and high pressure, and can be applied in the weak acidic, neutral and weak alkaline mediums for realizing electrochemical test of filamentous metal material in high temperature high pressure water solution system at room temperature to 350 DEG C and normal temperature to 20MPa.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Cloud-based blockchain dynamic networking system and cloud-based block chain dynamic networking method

The invention discloses a cloud-based blockchain dynamic networking system and method, and the method specifically comprises the steps of enabling a BaaS management platform to store the information of trusted nodes, and provide a query service of a trusted node list for the outside; querying a local trusted node list through a BaaS platform, and setting a networking request instruction accordingto the returned trusted node list; executing a container creation instruction, and deploying the blockchain node into the container to form a new node; sending a node authentication request to the newnode, and sending an encryption authentication mode and trusted node network information in a request message; after receiving the authentication request, the new node performs node authentication, and sends signature information and network information to the trusted node in a message form; adding a new node to the trusted node to send node adding success information to the new node; sending a node adding instruction to the new node, and adding credible node information to send node adding success information to the credible node after the new node receives the request; and after receiving the node adding success message, enabling the trusted node to start data synchronization.
Owner:INDUSTRIAL AND COMMERCIAL BANK OF CHINA

Vehicle trajectory reconstruction method and system and electronic device

The present application relates to a vehicle trajectory reconstruction method and system and an electronic device. The method comprises the following steps: step a, collecting road network data, and constructing a road network topology diagram according to the road network data; step b, setting starting and end points of the trajectory range, and selecting the monitoring points of the video monitor devices within the trajectory range according to the road network topology diagram; step c: performing vehicle data retrieval according to the video monitoring device monitoring points within the trajectory range, and performing trajectory reconstruction according to the vehicle data retrieval result. In a network of a large number of video surveillance devices that have been deployed, accordingto the road network data and point of interest data, an adaptive algorithm for selecting monitoring points is established by using network community discovery, shortest path algorithm and other algorithms, and data search is carried out on the basis of selecting monitoring points, which avoids time-consuming analysis and processing of redundant video monitoring devices data and improves the efficiency of vehicle trajectory reconstruction.
Owner:SHENZHEN INST OF ADVANCED TECH

Data constraints for polyglot data tiers

InactiveUS20160321277A1Guaranteed extensibilityWide supportDatabase distribution/replicationFile access structuresRecord extractData source
A Data Constraint Engine (100) for enforcing data constraints in a polyglot data tier (20) having a plurality of database-specific data stores (21, 22, 23) of various types such as an RDBMS (21), a Triplestore (22), and a MongoDB (23). The Data Constraint Engine uses the concept of a unified data model based on “records” in order to allow data constraints to be defined (using so-called “record shapes”) in a store-agnostic way. The Data Constraint Engine includes APIs (130) for processing incoming requests from remote clients (30) relating to data in the polyglot data tier, for example a request to create or update data in a data store. The APIs extract, from such a request, a record corresponding to the data specified in the request and a data source identifier identifying the data store holding the specified data. Then, on the basis of the record extracted by the interface, an appropriate record shape is extracted from a shapes catalogue (110), the record shape determining the structure of the record. Validators (120) each validate the record against the record shape according to various criteria such as format, data type, cardinality and slot count. If the record is validated, a record dispatcher (140) directs the specified data to the appropriate data store using the data source identifier. Data read from a data store can be validated in the same way.
Owner:FUJITSU LTD
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