Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
32 results about "Dynamic Data Exchange" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
In computing, Dynamic Data Exchange (DDE) was a technology for interprocess communication used in early versions of Microsoft Windows or OS/2. DDE allowed programs to manipulate objects provided by other programs (for example, a cell in an embedded Microsoft Excel spreadsheet), and respond to user actions affecting those objects. Internally, DDE was implemented in terms of Windows' message-passing architecture, which left it vulnerable to malformed third-party programs. DDE was partially superseded by Object Linking and Embedding (OLE), and is currently maintained in Windows systems only for the sake of backwards compatibility.
Run-time instrumentation for object oriented programmed applications
InactiveUS6126330AEasy to changeHardware monitoringSoftware testing/debuggingSoftware engineeringSoftware development
It is desirable for software developers to be able to conveniently obtain feedback from users of applications. It is known for developers and others to use code instrumentation for gathering various types of data relating to applications and their uses. The use of compile time instrumentation may be practical for some situations but it has significant drawbacks when used to provide indications of user interaction with applications. The present invention relates to the use of run time instrumentation for providing feedback from users of object oriented applications where the applications have unique object identifiers and support dynamic data exchange. The invention utilizes a setup software tool to create a monitor input file which indicates which objects of the application should be monitored when a user interacts with them.
Owner:IBM CORP
Dynamic data link interface in a graphic user interface
A method and system for graphically indicating dynamic data links between a plurality of data objects, which are displayed in a data processing system, wherein the data processing system includes a graphic user interface environment for providing dynamic data exchange utilizing the dynamic data links between the data objects. The method and system includes displaying at least one connection icon in association with each of the data objects that are capable of providing dynamic data exchange utilizing dynamic data links. The display of each connection icon is altered in response to a variation in status of a dynamic data link with the associated data object, wherein a graphic indication of dynamic data links in the data processing system is provided.
Owner:IBM CORP
Method and system for controlling an application displayed in an inactive window
A view controller, such as a scroll bar, for a first application which is currently displayed within an inactive window is detached and remotely displayed within an active window in addition to the view controller associated with the content of that active window. A Dynamic Data Exchange (DDE) link is then established between the remotely displayed view controller and the first application such that user inputs to the remotely displayed view controller can be utilized to modify the display of the first application without requiring the user to activate the inactive window. In this manner data within the first application can be scrolled and visually accessed by the user while the user is working within an active window, without requiring the user to toggle the focus back and forth between two windows.
Owner:LINKEDIN
System for and method of multi-location test execution
InactiveUS20070033441A1Easy to useAmplifier modifications to reduce noise influenceDigital computer detailsGraphicsTest execution
Methods, systems and computer program products for performing multi-location execution of tests between or among multi-sided test components in a wireless environment are described. Multiple flows are initiated substantially simultaneously and concurrently executed. A graphical representation of a multi-flow test is created that permits synchronization of the flows among agents at multiple remote locations. The graphical representation is converted into a textual representation in an open communication standard format, and information regarding each flow involved in the test is ascertained. The flows are substantially simultaneously initiated and concurrently executed with synchronization and dynamic data exchange components.
Owner:VIAVI SOLUTIONS INC
Apparatus and method for processing sensor data for vehicle using extensible markup language
InactiveUS20110161804A1Easy to optimizeSimple processCode conversionTransmissionBatch processingExtensible markup
An apparatus and a method for processing sensor data for a vehicle using an unified data format eXtensible Markup Language in process of data communication between various vehicle sensors and a vehicle application system, which facilitates transmit and receive data processing in terms of a vehicle network of the sensors and the application system are provided. The apparatus for processing the sensor data for the vehicle using the XML includes a plurality of vehicle sensors installed inside the vehicle for detecting a change of physical quantity and providing a detection signal; a sensor transducer for converting the detection signal of the vehicle sensors to an electrical analog signal; a signal conditioning unit for amplifying the electrical analog signal to a measurable signal; an Analog / Digital Converter (ADC) for converting the amplified analog signal to sensor data of a digital signal; a frame generator for generating and providing the sensor data converted to the digital signal per frame; and a sensor data converter comprising a Dynamic data Exchange Channel (DEC) for batch-processing the sensor data input from the frame generator per frame, in an XML format. The DEC of the sensor data converter defines a structure of the sensor data using a schema of the XML and converts the sensor data format to the XML format at the same time.
Owner:KOREA ELECTRONICS TECH INST
Multifunctional frequency conversion central air-conditioning experimental platform
InactiveCN102418965ASpace heating and ventilation safety systemsLighting and heating apparatusFrequency changerChilled water
The invention discloses a multifunctional frequency conversion central air-conditioning experimental platform, which comprises a refrigerating system, a control system and a simulated room, wherein the refrigerating system comprises a refrigerating unit, a chilled water system and a cooling water system; the control system comprises an upper computer, a lower computer and a frequency converter; amonitoring module in the upper computer is used for acquiring operating temperatures, pressure and flow signals of the experimental platform through the lower computer and transmitting a control command to monitor operation of the refrigerating system through the lower computer or the frequency converter; a matrix laboratory (MATLAB) module in the upper computer can execute an optimization control algorithm, and the MATLAB module and the monitoring module perform data exchange through a dynamic data exchange (DDE) mechanism or an object linking and embedding standard for process control (OPC); and the refrigerating unit comprises a frequency conversion compressor, a condenser, and an air-cooled evaporator and a water-cooled evaporator which are connected in parallel. By the experimental platform, refrigerating effects of the air-cooled evaporator, the water-cooled evaporator and a varied refrigerant volume (VRV) multi-air-conditioning system can be researched simultaneously, and a verification platform can be provided for a large frequency conversion central air conditioner to execute an energy-saving optimal advanced control strategy.
Owner:ZHEJIANG UNIV
Interactive ship cabin virtual training system based on 3D location roaming and training method
ActiveCN105608951AEasy to operateImprove realismCosmonautic condition simulationsTransmissionVirtual trainingComputer module
The invention discloses an interactive ship cabin virtual training system based on 3D location roaming. The system comprises a host computer, a dynamic data exchange protocol, a TCP / IP protocol conversion module, an MINIS simulation platform on which a main power device teaching simulation model is embarked, and a panorama display module having a ship cabin panorama three-dimensional graph and an FLEX control member, wherein a communication end of the host computer and the dynamic data exchange protocol realize communication with a dynamic data exchange protocol end interface of the TCP / IP protocol conversion module through the dynamic data exchange protocol, a communication end of the panorama display module and the dynamic data exchange protocol realize communication with a TCP / IP protocol end interface of the TCP / IP protocol communication module through a TCP / IP protocol, and a communication end of the MINIS simulation platform is connected with a simulation data communication end of the host computer. The interactive ship cabin virtual training system improves ship cabin equipment teaching quality.
Owner:NAVAL UNIV OF ENG PLA
Dynamic realizing method of network communication
InactiveCN1684413AShorten the timeSave resourcesData switching networksNetwork packetNetwork communication
This invention discloses a dynamic realization method for a network communication, which first of all sets up a connection between a server and a customer to generate a data packet dynamically based on the data form determined by the customer and sends the data packet to the server, which receives the packet and distributes related buffer zone in terms of the length of the packet to store the actual data in the packet in the buffer zone so as to realize dynamic data exchange between the server and the customer.
Owner:INVENTEC CORP
Electric catering truck
ActiveCN110371314AGuaranteed normal operationEnsure safetyAir-treating devicesCharging stationsAviationLow voltage
The invention relates to an electric catering truck. An uploading refrigerating system has two power supply modes which are separately power supply by a vehicle-mounted power supply and power supply by an external power supply. When the whole truck is in a charging state, the whole truck is de-electrified at a high voltage, and an air condition compressor is directly powered by the external powersupply to continuously keep a constant temperature of a refrigerating box body. When charging of the truck is stopped or the truck is in a driving state, the truck is in the vehicle-mounted power supply mode, so that the temperature of the refrigerating box body is guaranteed. The uploading system comprises a high pressure action model, a low voltage action mode and a manual mode. A key communication network of an electric aviation food truck is formed by adopting three CAN channels and different transmission rates are distributed, so that information exchange among gateways is more convenient. An Internet of Things monitoring platform is composed of an airport full-mounting platform, a vehicle operation enterprise platform and a vehicle production enterprise platform. The three platformscomplement each other and coordinate with each other to form a dynamic data exchange system of the electric catering truck.
Owner:JIANGSU TIANYI AIRPORT SPECIAL EQUIP CO LTD
Apparatus and method for processing sensor data for vehicle using extensible markup language
InactiveUS8909412B2Facilitates transmit and receive dataSimple data structureVehicle testingRegistering/indicating working of vehiclesBatch processingExtensible markup
An apparatus and a method for processing sensor data for a vehicle using an unified data format eXtensible Markup Language in process of data communication between various vehicle sensors and a vehicle application system, which facilitates transmit and receive data processing in terms of a vehicle network of the sensors and the application system are provided. The apparatus for processing the sensor data for the vehicle using the XML includes a plurality of vehicle sensors installed inside the vehicle for detecting a change of physical quantity and providing a detection signal; a sensor transducer for converting the detection signal of the vehicle sensors to an electrical analog signal; a signal conditioning unit for amplifying the electrical analog signal to a measurable signal; an Analog / Digital Converter (ADC) for converting the amplified analog signal to sensor data of a digital signal; a frame generator for generating and providing the sensor data converted to the digital signal per frame; and a sensor data converter comprising a Dynamic data Exchange Channel (DEC) for batch-processing the sensor data input from the frame generator per frame, in an XML format. The DEC of the sensor data converter defines a structure of the sensor data using a schema of the XML and converts the sensor data format to the XML format at the same time.
Owner:KOREA ELECTRONICS TECH INST
System for achieving condenser performance index on-line optimizing on basis of dynamic data exchange technology
PendingCN108955298AGood conditionImprove operating economySteam/vapor condensersSimulationPerformance index
The invention relates to a system for achieving condenser performance index on-line optimizing on the basis of a dynamic data exchange technology. The system comprises a distributed collecting systemand a condenser index on-line calculating system, wherein the distributed collecting system is used for collecting operation parameters of a condenser of a turboset in real time, and the operation parameters include the condenser circulating water inlet temperature and pressure, condenser circulating water outlet temperature and pressure, condenser vacuum and circulating flow, and steam turbine steam inlet flow; and the condenser index on-line calculating system is used for calculating the indexes of a condenser on the basis of the real-time collected condenser operation parameters and guidingoptimized operation of the condenser in real time through the calculating result. The dynamic data exchange technology is adopted and the data collecting system cooperates, on-line calculating of theperformance indexes of the condenser is achieved, the operation parameters are automatically adjusted through the calculating result, thus the condenser keeps in an optimal operation state, mistakenjudgment caused by human factors is reduced, and the operation economy of the set is improved.
Owner:DATANG DONGBEI ELECTRIC POWER TESTING & RES INST
System for and method of multi-location test execution
InactiveUS7437275B2Easy to useAmplifier modifications to reduce noise influenceDigital computer detailsComputer hardwareGraphics
Methods, systems and computer program products for performing multi-location execution of tests between or among multi-sided test components in a wireless environment are described. Multiple flows are initiated substantially simultaneously and concurrently executed. A graphical representation of a multi-flow test is created that permits synchronization of the flows among agents at multiple remote locations. The graphical representation is converted into a textual representation in an open communication standard format, and information regarding each flow involved in the test is ascertained. The flows are substantially simultaneously initiated and concurrently executed with synchronization and dynamic data exchange components.
Owner:VIAVI SOLUTIONS INC
Apparatus for managing application program and method therefor
ActiveUS20160004576A1Easily avoidedInterprogram communicationMicrocontrol arrangementsInformation processingComputer architecture
An embodiment of the present invention relates to an apparatus for managing an application program (AP) and a method therefor, and includes a processing module which, if the AP execution process thread corresponding to an AP to be terminated in a program block of an information processing device is terminated, reads the module information of each thread and the stack information of each module so as to select the module and stack having charge of processing a dynamic data exchange (DDE) message among each thread module and each module stack, and releases the termination of the thread including the selected module and stack. Thus, even in the state of terminating each AP execution process thread of the AP to be terminated (for example, user's unused AP), various problems due to the delay of processing the DDE message may be readily avoided.
Owner:HAN ALL TECH
Query method for XML (Extensive Makeup Language) data
InactiveCN103488639AValid queryEfficient managementSemi-structured data indexingSpecial data processing applicationsXML treeMerge sort
The invention provides a query method for XML (Extensive Makeup Language) data. The query method comprises the following steps: (1) adopting a Native XML manner to store the XML data, wherein a storage structure comprises an inner node layer, a leaf node layer and an inverted layer, wherein the inner node layer is used for storing nodes of an XML tree, an XML element is encoded by adopting a DDE (Dynamic Data Exchange) encoding manner, the leaf node layer is used for storing file data of the nodes of the XML tree; the inverted layer is used for storing an inverted index of the leaf node layer; (2) taking out an element sequence corresponding to the nodes of an XPath from the inverted layer according to an input XPath query statement and carrying out merge sort by adopting a loser tree; and (3) carrying out pushing and popping operation on XML elements subjected to the merge sort according to the sequence and obtaining a query result from a buffering region. According to the query method for the XML data, the XPath with a keyword OR and a wildcard character * can be processed and the efficiency is very high.
Owner:PEKING UNIV
DVD player capable of automatically adjusting display brightness
InactiveCN1801386AAutomatically adjust brightnessCarrier indicating/warning arrangementsCathode-ray tube indicatorsElectricityDisplay device
The invention discloses a DVD player of being able to adjust display brightness automatically which comprises: a Flash memory for storing programs used by operating system; a high speed dynamic random access memory (SDRAM) for dynamic data exchange with MPEG decoder chip; an electronic erasable read-only memory (EEPROM) for storing status settings of DVD player; a light sensor for sensing external surrounding brightness, converting to electronic signal and transferring to MPEG decoder chip; MPEG decoding chip for adjusting brightness parameter according to the electronic signal from light sensor and outputting video to monitor.
Owner:LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
Numerical control system online monitoring method
InactiveCN110825030AEfficient collectionReal-time monitoring of processing trendsProgramme controlComputer controlData acquisitionDynamic Data Exchange
The invention discloses an online monitoring method for a numerical control system, and the method comprises the following steps: S1, searching variable data items, verifying whether IDs of the variable data items exist in a numerical control system or not, and verifying the correctness of the IDs if the IDs of the variable data items exist in the numerical control system; S2, obtaining a correctvariable data item with an ID from the numerical control system; S3, calculating the accurate time of obtaining the variable data item each time; S4, drawing a curve graph of the acquired variable data items changing with time; S5, storing the obtained variable data item direction into a table according to the sampling frequency. According to the online monitoring method for the numerical controlsystem, the data of the numerical control machine tool is collected through the dynamic data exchange (DDE) technology, and the data of the machining process can be efficiently collected in real time;a machining process signal can be dynamically displayed in the data acquisition process, so the machining trend can be monitored in real time, and the real-time machining state can be accurately controlled; and the data is stored in the EXCEL according to the acquisition frequency, so long-term data retention and further data processing and analysis can be facilitated.
Owner:CHANGAN UNIV
Space-time big data converging system and method
ActiveCN110704460AGuaranteed real-timeSolve the problem of low real-time updateDatabase updatingGeographical information databasesThe InternetData exchange
The invention discloses a space-time big data exchange system and method. The system comprises a static data exchange subsystem and a dynamic data exchange subsystem, wherein the static data exchangesubsystem comprises a first detection module for detecting different types of first trigger events and a first response module for executing a data exchange service corresponding to the current firsttrigger event when the first detection module detects the current first trigger event; the dynamic data exchange subsystem comprises a butt joint module used for achieving butt joint of the dynamic data exchange subsystem and an Internet of Things platform. The second detection module is used for detecting second trigger events of different types; and the second response module is used for subscribing Internet of Things data corresponding to the current second trigger event from the Internet of Things platform when the second detection module detects the current second trigger event. Accordingto the invention, the real-time performance of time-space big data updating can be effectively ensured.
Owner:GUANGZHOU URBAN PLANNING & DESIGN SURVEY RES INST
Real-time data communication system and method applied between process monitoring control system and emulation support system
ActiveCN105138390ARealize real-time data communicationAchieve integrationSoftware simulation/interpretation/emulationOLE for Process ControlDynamic Data Exchange
The present invention discloses a real-time data communication system applied between a process monitoring control system and an emulation support system. The real-time data communication system comprises an OPC (OLE for Process Control) communication module in communication with the process monitoring control system, a DDE ((Dynamic Data Exchange) communication module in communication with the emulation support system, and a data conversion module used for performing mutual conversion on data in the OPC communication module and the DDE communication module. The present invention further discloses a real-time data communication method applied between the process monitoring control system and the emulation support system. The method comprises the steps of communication data reception, data conversion, communication data transmission and the like. The real-time data communication system and method has beneficial effects of implementing fusion of two different data exchange mechanisms of OPC and DDE and implementing real-time communication of large data volume.
Owner:NAVAL UNIV OF ENG PLA
Automatic control system of toluene dismutation micro-reverse
InactiveCN1963703AEasy to operateDoes not affect operationComputer controlHydrocarbonsAutomatic controlSimulation
This invention relates to toluene dismutation micro automatic control system, which solves the problem for not weighting and metering pump data bus through dynamic data exchange technique and for not sending tested data to relative database program for second process. This invention comprises micro computer, temperature control measurement, pressure measurement, flow control measurement and weighting measurement part.
Owner:SHANGHAI RES INST OF PETROCHEMICAL TECH SINOPEC
Permafrost active layer thickness calculation method based on system dynamics
PendingCN114707344AEasy to operateEfficient use ofDesign optimisation/simulationSpecial data processing applicationsComputational scienceSystem dynamics model
The invention discloses a permafrost active layer thickness calculation method based on system dynamics, which belongs to the field of geology and comprises five steps of influence factor identification, inter-factor correlation establishment, system dynamics model construction, dynamic data exchange and ALT spatial and temporal distribution analysis. The influence factor identification is to identify and screen out ALT main influence factors by using a big data mining technology; the establishment of the correlation between the factors is to determine the correlation between the influence factors; the construction of the system dynamics model is to construct an ALT prediction model based on a causal feedback relationship by using a system dynamics method; the dynamic data exchange is to match an SD simulation result with spatial information in the ArcGIS by using a dynamic data exchange technology; according to the ALT spatial and temporal distribution analysis, a result obtained after dynamic data exchange is displayed in space, and engineering application in the future is facilitated.
Owner:SOUTHWEST JIAOTONG UNIV
Method and apparatus for building communication between agent desktop scripting applications and an outbound call software suite within a telecommunications center
ActiveUS6920441B2Telephone data network interconnectionsSpecial service for subscribersData setSoftware suite
A dynamic data exchange (DDE) gateway for formatting and forwarding commands, requests, and data between separate software suites operating under disparate protocols within a communication center includes a DDE application for mapping data of disparate protocols to a common set of data topics, data items, and data commands, and a set of software controls for interface with the DDE application the controls used to create and maintain the common set of data topics, data items, and data commands. The gateway is characterized in that an agent of the communication center operating a computerized workstation invokes a DDE-enabled scripting application containing a set of data topics, data items, and data commands, the set mappable to the common set of DDE data topics, data items, and data commands such that interaction through the scripting application enables dynamic data exchange with a CTI telephony suite having a set of data topics, data items, and data commands that are also mappable to the common set of DDE data topics, data items, and data commands.
Owner:GENESYS TELECOMMUNICATIONS LABORATORIES INC
Method for quickly establishing non-rotational symmetry lighting system model
ActiveCN105868495AAutomatically and quickly generatedUniversalSpecial data processing applicationsMATLABDynamic Data Exchange
The invention discloses a method for quickly establishing a non-rotational symmetry lighting system model. The method comprises the steps of first utilizing a grid energy division principle to calculate point cloud data on the surface of a lighting system; establishing a channel between numerical analysis software Matlab and lighting simulation software TracePro through dynamic data exchange (DDE) communication, and transmitting the point cloud data to the TracePro; finally performing fitting on data points through TracePro macro languages, and utilizing sectioning to quickly form a solid model. The method has very high convenience and program ductility, the lighting system model designed according to the method can be generated automatically and quickly, and automatic optimization can be performed when a program module with respect to extension of iteration feedback of a light source lighting system is added.
Owner:JIANGNAN UNIV
Interactive ship engine room virtual training system and method based on 3D real scene roaming
ActiveCN105608951BEasy to operateImprove realismCosmonautic condition simulationsTransmissionVirtual trainingComputer module
The invention discloses an interactive ship cabin virtual training system based on 3D location roaming. The system comprises a host computer, a dynamic data exchange protocol, a TCP / IP protocol conversion module, an MINIS simulation platform on which a main power device teaching simulation model is embarked, and a panorama display module having a ship cabin panorama three-dimensional graph and an FLEX control member, wherein a communication end of the host computer and the dynamic data exchange protocol realize communication with a dynamic data exchange protocol end interface of the TCP / IP protocol conversion module through the dynamic data exchange protocol, a communication end of the panorama display module and the dynamic data exchange protocol realize communication with a TCP / IP protocol end interface of the TCP / IP protocol communication module through a TCP / IP protocol, and a communication end of the MINIS simulation platform is connected with a simulation data communication end of the host computer. The interactive ship cabin virtual training system improves ship cabin equipment teaching quality.
Owner:NAVAL UNIV OF ENG PLA
Dynamic encryption method of communication channel
ActiveCN103973438BAchieve dynamic encryption effectProtection securityMultiple keys/algorithms usageSecurity arrangementDynamic channelCommunication link
A method for realizing dynamic encryption of a communication channel between a server and a client, the method comprising: establishing a key storehouse at the server and the client respectively; The communication connection; the server decrypts and verifies the authentication information sent by the client when establishing communication; the server verifies and compares the client’s key store version number to determine whether to update the client’s key store; the server randomly assigns the second encryption The scheme encrypts the authentication information for the client to log in to the server; and the server randomly assigns a third encryption scheme to encrypt the communication data. Each data interaction of the communication channel dynamic encryption method of the present invention is encrypted. Before the server distributes the third encryption scheme, it only needs to transmit the encryption scheme instead of the specific key on the channel; communication data.
Owner:SHENZHEN TIANYUAN DIC INFORMATION TECH CO LTD
Apparatus for managing application program and method therefor
ActiveUS9348667B2Easily avoidedInterprogram communicationMicrocontrol arrangementsInformation processingApplication software
An embodiment of the present invention relates to an apparatus for managing an application program (AP) and a method therefor, and includes a processing module which, if the AP execution process thread corresponding to an AP to be terminated in a program block of an information processing device is terminated, reads the module information of each thread and the stack information of each module so as to select the module and stack having charge of processing a dynamic data exchange (DDE) message among each thread module and each module stack, and releases the termination of the thread including the selected module and stack. Thus, even in the state of terminating each AP execution process thread of the AP to be terminated (for example, user's unused AP), various problems due to the delay of processing the DDE message may be readily avoided.
Owner:HAN ALL TECH
Variable-step XML (Extensive Makeup Language) encoding method
InactiveCN102096706BImprove time and efficiencySpecial data processing applicationsTheoretical computer scienceDynamic Data Exchange
The invention discloses a variable-step XML (Extensive Makeup Language) encoding method, which belongs to the field of database storage. The method comprises the following steps of: (1) setting the encoding step value of an XML document as PACE; (2) for a newly inserted XML node r: when r is inserted as a first subnode of a nonleaf node j, subtracting PACE from the final node code of the original first subnodes in j as a code of r; when r is inserted as the final subnode of j, adding the final node of the original final subnode in j with PACE as the code of r; when r is inserted between two adjacent nodes, if the first nodes of two adjacent node codes are equal and integers in the final PACE are not used up, enabling the final node of r code to be an integer in the PACE, and otherwise encoding r by adopting a DDE (Dynamic Data Exchange) method; and if r is inserted as a subnode of a nonleaf node k, increasing a component 1 behind a k code as a code of r. The method greatly improves encoding efficiency.
Owner:PEKING UNIV
A query method for xml data
InactiveCN103488639BEfficient managementImprove efficiencySemi-structured data indexingSpecial data processing applicationsXML treeMerge sort
The invention provides a query method for XML (Extensive Makeup Language) data. The query method comprises the following steps: (1) adopting a Native XML manner to store the XML data, wherein a storage structure comprises an inner node layer, a leaf node layer and an inverted layer, wherein the inner node layer is used for storing nodes of an XML tree, an XML element is encoded by adopting a DDE (Dynamic Data Exchange) encoding manner, the leaf node layer is used for storing file data of the nodes of the XML tree; the inverted layer is used for storing an inverted index of the leaf node layer; (2) taking out an element sequence corresponding to the nodes of an XPath from the inverted layer according to an input XPath query statement and carrying out merge sort by adopting a loser tree; and (3) carrying out pushing and popping operation on XML elements subjected to the merge sort according to the sequence and obtaining a query result from a buffering region. According to the query method for the XML data, the XPath with a keyword OR and a wildcard character * can be processed and the efficiency is very high.
Owner:PEKING UNIV
Multifunctional frequency conversion central air-conditioning experimental platform
InactiveCN102418965BSpace heating and ventilation safety systemsLighting and heating apparatusFrequency changerEngineering
Owner:ZHEJIANG UNIV
Real-time data communication system and method applied between process monitoring control system and simulation support system
ActiveCN105138390BRealize real-time data communicationAchieve integrationSoftware simulation/interpretation/emulationSupporting systemOLE for Process Control
The present invention discloses a real-time data communication system applied between a process monitoring control system and an emulation support system. The real-time data communication system comprises an OPC (OLE for Process Control) communication module in communication with the process monitoring control system, a DDE ((Dynamic Data Exchange) communication module in communication with the emulation support system, and a data conversion module used for performing mutual conversion on data in the OPC communication module and the DDE communication module. The present invention further discloses a real-time data communication method applied between the process monitoring control system and the emulation support system. The method comprises the steps of communication data reception, data conversion, communication data transmission and the like. The real-time data communication system and method has beneficial effects of implementing fusion of two different data exchange mechanisms of OPC and DDE and implementing real-time communication of large data volume.
Owner:NAVAL UNIV OF ENG PLA
A method for on-line monitoring of numerical control system
InactiveCN110825030BEfficient collectionReal-time monitoring of processing trendsProgramme controlComputer controlData exchangeData mining
The invention discloses an on-line monitoring method of a numerical control system, comprising: S1, searching for variable data items, and verifying whether the ID of the variable data item exists in the numerical control system, and verifying the correctness of the ID if it exists; S2, from the numerical control system Obtain the variable data item whose ID exists and is correct; S3, calculate the precise time of obtaining the variable data item each time; S4, draw the curve of the obtained variable data item over time; S5, transfer the obtained variable data item to Stored in the table according to the sampling frequency. The online monitoring method of the numerical control system of the present invention collects numerical control machine tool data through the dynamic data exchange technology (DDE), can collect the processing process data efficiently in real time; can dynamically display the processing process signal during the data collection process, and is beneficial to monitor the processing trend in real time , to accurately control the real-time status of processing; by storing data in EXCEL according to the collection frequency, it can facilitate long-term data retention and further processing and analysis of data.
Owner:CHANGAN UNIV
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com