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739 results about "Software simulation" patented technology
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A software simulation is a model of your software that allows you to demonstrate its key functions and operations. Using software simulations, you can show your customer how everything works in your program. Also, you can make it interactive, like this sample simulation created with iSpring Pro.
Method and Apparatus for Software Simulation
InactiveUS20100198799A1Reduce in quantityReduce the amount of memoryDigital data processing detailsSoftware testing/debuggingSoftware emulationParallel computing
A software simulation method and program storage device for software defect detection and obtaining insight into software code is disclosed, where simulation consists of executing target software program code for multiple input values and multiple code paths at the same time, thus achieving 100% coverage over inputs and paths without actually running the target software. This allows simulation to detect many defects that are missed by traditional testing tools. The simulation method runs a plurality of algorithms where a plurality of custom defined and pre-defined rules are verified in target software to find defects and obtain properties of the software code.
Owner:KRISHNAN SANJEEV +1
Simulacrum of physical security device and methods
ActiveUS20120117635A1Service provisioningDigital data processing detailsSoftware emulationPhysical security
A simulacrum security device and methods. In one embodiment, a simulacrum or likeness of a physical security device is provided for use in conjunction with a software emulation of the security device. In one implementation, a “faux SIM card” is provided that does not contain Subscriber Identification Module (SIM) information itself, but instead enables a user to download Electronic SIM (eSIM) information (e.g., from a network or eSIM server) which is loaded into a software emulation of a Universal Integrated Circuit Card (UICC) device. The faux card is printed with an activation code, scan pattern, or other activation or access information. The subscriber purchases the faux card, and enters the activation code into a device; the entered activation code enables the device to log onto a network, and download the appropriate eSIM data. Delivery of eSIM information as enabled by the faux card addresses deficiencies in existing SIM distribution schemes, provides users with an enhanced perception of security, and further addresses various legal requirements.
Owner:APPLE INC
Semi-physical simulation testing platform of train control network
ActiveCN102323761AReduce manufacturing costReduce technical riskSimulator controlSoftware emulationControl system
The invention discloses a semi-physical simulation testing platform of a train control network, which comprises a vehicle-mounted electrical control system, a software simulation control system and / or a physical control system and a data acquisition interactive system, wherein the software simulation control system and / or the physical control system is connected with the vehicle-mounted electrical control system; the data acquisition interactive system is connected with the vehicle-mounted electrical control system so as to convert a signal output by the vehicle-mounted electrical control system into a digital signal or convert the digital signal into an input signal required by the vehicle-mounted electrical control system; and the data acquisition interactive system is connected with the software simulation control system and / or the physical control system so as to convert the digital signal connected and output by the software simulation control system and / or the physical control system into a switching value signal or convert the switching value signal into the digital signal required by the software simulation control system and / or the physical control system. The semi-physical simulation testing platform of the train control network is capable of comprehensively implementing evaluation and verification on the design of a train network control system, eliminating possibledesign errors, rapidly positioning faults to ask for reasons, and reducing the production debugging cost and the technical risks of real trains.
Owner:CHINA RAILWAYS CORPORATION +2
Method and system for simulating computer networks to facilitate testing of computer network security
InactiveUS20030212908A1Memory loss protectionUnauthorized memory use protectionAnalog computerReal-time testing
A method and system for simulating computer networks and computer network components to test computer network security is disclosed. A user specifies a desired configuration of a simulated computer network by using a configuration manager. The user also defines all the network components within the simulated computer network by specifying whether a component should be provided in hardware or should be simulated via software. Upon receiving the above-mentioned information from the user, the configuration manager acquires the required hardware resources from a hardware inventory. The configuration manager utilizes an interface switch that connects the hardware in the hardware inventory to produce the desired network layout. Next, the specified configuration for each of the network components is pushed into the acquired hardware resources. Computer network components to be simulated with software are subsequently initialized by the configuration manager. At this point, the user can use the simulated computer network for real-time testing of network security.
Owner:LOCKHEED MARTIN CORP
Intelligent teaching system based on VR (virtual reality) technology
InactiveCN107341980ASolve the problem of unbalanced teaching resourcesAchieve teaching effectElectrical appliancesData exchangeSoftware simulation
The invention relates to an intelligent teaching system based on VR (virtual reality) technology. The system includes a cloud platform side, a teacher side, and a student side; the teacher side and the student side are in communication connection with the cloud platform side; the cloud platform side is responsible for the data exchange, statistics and management of the teacher side and the student side; the teacher side is the middle control end used by a teacher during the teaching for opening or closing the teaching resource displayed at the student side and controlling the playing and pausing of the video content of the student side; and the student side includes an instruction receiving module, a high-performance host, a wireless communication module, a virtual reality display module, a virtual reality handheld interaction module, and a virtual reality positioning module. The system solves the problems of lack of hardware resources, unbalanced hardware resources, and bad software simulation effect in the teaching and training links in the basic education and vocational education fields.
Owner:海南钧瑞科技有限公司
Debuggable opaque IP
Partially opaque intellectual property (IP) includes source code providing the IP functionality. Meta-comments (pragmas or attributes) are provided with the source code to enable visibility of one or more nodes in the IP. Aliasing of the visibility-enabled nodes may also be provided for using meta-comments in the IP source code. The visibility-enabled nodes may be used by system designers in debugging a system design in either a software simulation environment and / or in debugging of a hardware device implementing the partially opaque IP.
Owner:TAHOE RES LTD
Fiber temporary plugging turnaround fracture method capable of improving low permeability tight sandstone oil and gas well production capacity
ActiveCN105041287AImprove the transformation effectThe method is simpleFluid removalSealing/packingFiberSoftware simulation
The invention relates to a fiber temporary plugging turnaround fracture method capable of improving low permeability tight sandstone oil and gas well production capacity, which comprises steps: 1 wells and layers which can carry out fiber temporary plugging turnaround fracture are selected; 2 perforation intervals and perforation parameters are selected; 3 fracture construction parameters and fracture construction pump sequence are optimized and determined; 4 fiber temporary plugging diversion agent addition, fiber addition speed in construction and crack turnaround plugging pressure are counted; 5 crack closing time, crack closing pressure and prepad fluid amount are simulated and counted; and 6 original cracks are plugged by utilizing fiber temporary plugging diversion agent, and are turned to fracture stage construction after being turned over. The fiber temporary plugging turnaround fracture method capable of improving the low permeability tight sandstone oil and gas well production capacity can be widely applied to improve fracture of low permeability tight sandstone multiple storage layer oil and gas wells, and improves reforestation effect of storage layers by counting software simulation, optimizing fracture construction parameters and increasing fibers. Compared with prior art, the fiber temporary plugging turnaround fracture method capable of improving low permeability tight sandstone oil and gas well production capacity has low construction cost, strong controllability and excellent pressure effect, and is 2-4 time of adjacent well productivity.
Owner:PETROCHINA CO LTD
Applying distributed simulation techniques to hardware emulation
ActiveUS7480609B1Analogue computers for electric apparatusComputer aided designSoftware emulationSystem under test
A system for applying distributed software simulation techniques to hardware emulation may include a first hardware emulator mounted on a first expansion board at a first host, and a second hardware emulator mounted on a second expansion board at a second host. The first hardware emulator may be configured to emulate a first portion of a system under test, and the second hardware emulator may be configured to emulate a second portion of the system under test, and the first and second hardware emulators may coordinate an emulation of the system under test using one or more messages, i.e., a coordination of an emulation of the system under test may be accomplished using communications between the first and second hardware emulators.
Owner:ORACLE INT CORP
System and method for improved software simulation using a plurality of simulator checkpoints
InactiveUS20060155525A1CAD circuit designSoftware simulation/interpretation/emulationSoftware emulationParallel computing
A system and method is provided to improve software simulation. A software emulator is used in conjunction with a hardware simulator. A special snapshot instruction is included in the software code that is emulated. When the snapshot instruction is encountered, values such as register, memory, and program stack values, are stored creating an initial snapshot. Code continues to be emulated and, when the next snapshot instruction is encountered, the values are written to create a second snapshot. The initial values are used to set an initial state in a hardware model that is simulated on a hardware simulator. The results of the hardware simulation are compared to the second snapshot to uncover software errors and / or hardware errors so that the software can be modified or the hardware design can be modified. Multiple sets of snapshots can be taken to analyze multiple sections of the software program.
Owner:IBM CORP
System and method for software prototype-development and validation and for automatic software simulation re-grabbing
ActiveUS20070261035A1Error detection/correctionSpecific program execution arrangementsGraphicsObject Class
A system and method for development of a computer application and of a computer application simulation is disclosed. During execution of a program, a processor may identify one or more object class instantiations that are associated by the program with a program state obtained during the execution of the program, may store in a file a description of the identified object class instantiations, where at least a portion of the execution of the program is simulatable based on the file, and may modify the first file in response to a user interaction with a graphical representation of one of the described object class instantiations, where a modified version of the portion of the execution of the program is simulatable based on the modified first file.
Owner:PARTNER ONE ACQUISITIONS INC
Generic software simulation interface for integrated circuits
ActiveUS8041553B1Electronic circuit testingDetecting faulty computer hardwareComputer hardwareIntegrated circuit layout
A computer-based system for testing a circuit design for implementation within an integrated circuit device can include a design application (205) providing simulation instructions for testing a circuit design and a simulation driver (225) receiving the simulation instructions and translating the simulation instructions into control protocol instructions specifying operations of an integrated circuit control protocol. The system can include a simulation environment (240). The simulation environment can include a communication module (245) communicating with the simulation driver, a simulation cable driver (250) receiving the control protocol instructions from the simulation driver via the communication module, and a control module (255). The simulation cable driver further can translate the control protocol instructions into signaling information corresponding to the integrated circuit control protocol. The control module can include a plurality of ports receiving the signaling information and outputting the signaling information to a device under test within the simulation environment.
Owner:XILINX INC
Apparatus and method for generating 3D images
InactiveUS7173622B1Method is fastAccurate assessmentDrawing from basic elementsCathode-ray tube indicatorsTerrainBrick
A method of representing n-dimensional parametric surfaces (animated shapes) is provided that expresses all shapes in a consistent manner to reduce storage requirements, support deformation and simplify interaction between shapes. The method, a version of sweeps, represents shapes using a unique combination of three discrete types of (piecewise polynomial) curves: spine (sweeping) curves, slice (section) curves, and lathe (plane) curves, which are combined to create surfaces. The curves required to make simple 3D primitives (i.e. torus, sphere, cube and pyramid) are themselves simple 2D primitives (i.e. line, circle, square, triangle). The storage size of this system's shapes is exponentially smaller than the size of polygonal versions of the same shapes (as a function of the number of polygons). Complex models can be broken into multiple shapes, which are arranged in a tree hierarchy. The shapes of this invention can be tiled with other shapes of this invention (i.e. a row of smokestacks made of bricks). The shapes of this invention can smoothly travel on other shapes of this invention (i.e. a football rolling over arbitrary terrain). This invention supports fast, intuitive creation of shapes such as hand-drawn shapes. This invention is a closed system, providing a suite of operations that can occur in arbitrary order sans approximation errors. When scenes are constructed of parametric building blocks, each represented with the same universal formula, a suite of advanced operations becomes available, providing support critical to advanced software simulations.
Owner:FIGMENT3D ENTERPRISES
Method and system for simulating computer networks to facilitate testing of computer network security
InactiveUS7379857B2Error preventionFrequency-division multiplex detailsAnalog computerReal-time testing
Owner:LOCKHEED MARTIN CORP
Interfacing hardware emulation to distributed simulation environments
ActiveUS7424416B1Analogue computers for electric apparatusCAD circuit designSoftware emulationSystem under test
A system for interfacing hardware emulation to software simulation environments may include a simulation node configured to simulate a first portion of a system under test and a hardware emulation node configured to emulate a second portion of the system under test. The hardware emulation node may also be configured to exchange simulation information (such as representations of signal values obtained as output from the emulated portion of the system under test) with the simulation node. The hardware emulation node may contain a field programmable gate array devices (FPGA) configured to perform the hardware emulation. The FPGA may be mounted on an expansion board, such as a PCI (Peripheral Component Interconnect) board.
Owner:ORACLE INT CORP
Medical simulation device with motion detector
A computerized system for performing a simulated medical procedure, comprises: (a) a physically simulated interventional instrument that looks and feels like an endoscope, for providing user input to a computer simulated medical angioplasty procedure; (b) a motion detector circuit to provide navigation signals representative of the movement of the physically simulated interventional instrument, the motion detector comprising a laser radiation detector, used for determining the location of the interventional instrument in a predetermined area in proximity to the detector and a laser radiation emitter used for emitting a laser beam toward the predetermined area; and (c) a movement calculation unit receiving the navigation signals from the motion detector circuit, and programmed to update the position of a corresponding software simulation of the interventional instrument. A tactile feedback mechanism may be included for providing simulated tactile feedback back to the physically simulated interventional instrument according to the calculated position of the software interventional instrument in the computer simulation.
Owner:SIMBIONIX
Systems and methods of creating and accessing software simulated computers
ActiveUS7500236B2Guaranteed uptimeAccurate operationDigital computer detailsMultiprogramming arrangementsSoftware engineeringThe Internet
The system and methods of the present application comprise one or more computers that generate and maintain a plurality of software-simulated computers. Each software-simulated computer is adapted to efficiently run an installed application program. Additional security layers provide access to the installed application through a remote user interface installed on a user's computing device. The system generates a new copy of the software-simulated computer for each user session, that prevents configuration problems from interfering with the proper operation of the application program, thereby consistently running the application in an optimized fashion, regardless of changes made to the software-simulated computer by the user or a virus. These software-simulated computers are unaffected by changes a user makes on their own client device. To this end, the system provides robust, web accessible capabilities to application software that may not have been adapted for use on the Internet.
Owner:AVALARA
Method and apparatus for software simulation
InactiveUS8494832B2Reduce in quantityReduce the amount of memoryDigital data processing detailsError detection/correctionSoftware emulationParallel computing
Owner:KRISHNAN SANJEEV +1
Simulation of software
ActiveUS20080301651A1Facilitate accurateFacilitate rapid simulationSoftware testing/debuggingSoftware simulation/interpretation/emulationSoftware emulationSoftware system
Systems and methods facilitate accurate and rapid simulation of software by periodically saving simulation states and design stimuli for use as a replay model. Divergences from the stored information may be detected during subsequent re-executions, which can in turn be run using the saved stimuli and states.
Owner:ARM LTD
Software simulation verification method based on Cache coherence protocol
InactiveCN102880537AEasy diagnosisSpeed up the debugging processFunctional testingTheoretical computer scienceLogisim
The invention provides a software simulation verification method based on a Cache coherence protocol. According to the method, pseudo random test which is capable of compiling constraint models and also carrying out band constraint in a manual mode is subject to software simulation and verification; specific objects are verified, and the accuracy and defect of the protocols are fed back. The method based on software simulation comprises the following steps of: firstly determining a multi-stage coherence description mode based on an expanded Cache Coherence protocol; and subsequently realizing the software simulation verification method, counting the coverage rate and carrying out error report. With the adoption of the method, the Cache Coherence protocol in multi-stage domains in a multi-state space can be verified effectively so as to enable a protocol table to realize the establishment of corresponding logic relationship, judge whether the state transition of a system in accordance with the protocol table accords with the coherence definition through an overall checker, and primarily judge whether a mode established in accordance with the protocol table has expected properties. The model system has the remarkable advantages that counter-examples can be generated automatically so as to assist in debugging errors of the system and accelerating system diagnosis and debugging.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD
Method for machining perforated structure form luneberg lens
ActiveCN104638377ARealize processingReduce labor intensityAntennasManufacturing technologyEngineering
The invention discloses a method for machining a perforated structure form luneberg lens and relates to the technical field of manufacturing of a perforated luneberg lens antenna. The method mainly comprises the following steps of designing parameters, such as the caliber, a layer number along the radial direction, the number of each layer of holes, and the shape of the holes, of the perforated structure luneberg lens, through electromagnetic software simulation; according to the designed parameters, adopting large 3D (three-dimensional) software to model the perforated structure form luneberg lens antenna; guiding the built model into 3D printing equipment, and preparing the perforated structure form luneberg lens by 3D printing technology. The method is high in machining precision, high in efficiency and low in cost, is not affected by a gap layer, and is particularly suitable for machining the whole perforated luneberg lens.
Owner:NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
Multi-camera in-loop simulation test method and system for intelligent driving
InactiveCN109188932AUnified Effective Object Detection ResultsPerfect display of intelligent driving technologySimulator controlMulti cameraControl signal
The invention discloses a multi-camera in-loop simulation test method and system for intelligent driving. Carsim software is arranged in a computer for simulating an experiment car and a traffic environment, and a camera is used for collecting video image data; the video image data collected by different cameras are respectively subjected to data correction; the image data corrected by different cameras are respectively perceived; the image data perceived by different cameras are fused; a driving behavior decision module analyzes a fused perception result to finish the driving decision work; adecision signal is transformed into a control signal of the experiment car; and the experiment car is conducted to drive in a traffic simulation environment according to the received control signal.According to the multi-camera in-loop simulation test method and system for intelligent driving in the invention, when a plurality of cameras are used for data collection, the data processing resultsof the plurality of cameras are fused through algorithm model optimization, a unified and effective target detection result is produced, and the intelligent driving technique is perfectly performed.
Owner:JILIN UNIV
Design method of virtual testing system of network device
ActiveCN101778016AReduce testing costsEasy diagnosisData switching networksComputer hardwareSoftware simulation
The invention relates to a design method of a virtual testing system of a network device. The method is realized by using the network chip and testing instrument in a software simulation network device, wherein the analog network chip and analog testing instrument both run on virtual machine, the network ports of the analog network chip and the analog testing instrument are mapped to the network ports of the virtual machine, and the network ports of the virtual machine adopt virtual connection. From the user's perspective, the processing to messages by the analog network chip is the same as the processing to messages by the real network chip except for the parts which are not considered in virtual test such as the processing speed which may be different from that of the real network chip; the analog network chip can be used to provide API for system software to interact; and the analog testing instrument can be used to transmit messages, receive messages and analyze message results according to the configuration of the user. The method of the invention can largely save the testing cost of the network device and find problems in diagnostic test easily and conveniently.
Owner:丁贤根
Laboratory simulation detection device for low-voltage meter reading system
Owner:ZHUHAI KEHUI ELECTRICAL APPLIANCE CO LTD +1
Device and method for checking railway logical software engines for commanding plants, particularly station plants
ActiveUS7725303B2Action very simple and easyLarge employmentSimulator controlAnalogue computers for electric apparatusSoftware engineControl signal
Method and device for checking logical software engines for commanding railway plants, particularly station plants, include at least a computer with at least a central processing unit and at least a memory for loading and executing programs, a logical engine for commanding a plant, particularly a station plant, being loaded or loadable in said memory for its execution, which plant comprises a plurality of operating units for actuating and / or detection and / or measurement and / or signalling, so-called wayside equipments, which units are provided for receiving command signals and for transmitting control signals about the operating condition, and which logical software engine reads control signals given by the operating units for actuating and / or detection and / or measurement and / or signalling and its processes command signals of said operating units based on an operation protocol of the plant itself. According to the invention, in the computer memory there is loaded or loadable and is executable by the computer a software simulation program of the plant that must be controlled and commanded by the control and command logical program, which simulation program reproduces faithfully the plant structure and the operating modes of the operating units provided in said plant.
Owner:ALSTOM FERROVIARIA SPA
Semi-physical real-time simulation system of airplane reverse thrust hydraulic unit
ActiveCN101544281AShorten the development and analysis cycleImprove design qualityCosmonautic condition simulationsElectric testing/monitoringJet aeroplaneSoftware emulation
The invention discloses a semi-physical real-time simulation system of an airplane reverse thrust hydraulic unit. A closed loop testing system mainly comprises a computer, a programmable logic controller (PLC) hardware platform, an input device, and a software simulation device arranged in the computer; submodels of a hydraulic system are built by utilizing a hydrokinetics and electronic control theory, and then each simulation submodel forms the software simulation device; the PLC hardware platform performs parameter control and logic control to the software simulation device according to a state signal of the input device, and the output quantity of the software simulation device is shown in the computer by a digital and cartoon mode and also used as a feedback signal to be fed back to the PLC hardware platform through a communication interface. The invention can test and analyze various parameters of the airplane reverse thrust hydraulic unit without preparing the hydraulic unit, thereby greatly shortening the developing and analyzing periods of the reverse thrust hydraulic unit, improving the design quality and reducing the test expense.
Owner:苏州同元软控信息技术有限公司
GPRS (General Packet Radio Service) core network simulation and test system
InactiveCN101888658AAvoid occupyingAvoid influenceWireless communicationGPRS core networkSoftware emulation
The invention discloses a GPRS (General Packet Radio Service) core network simulation and test system applied to the field of mobile phone network testing. The system comprises a system access module, a system configuration and management module, a service test and management module, an alarm and management module and a fault analyzing and positioning module, wherein the system access module is accessed into a network through a simulated core network element and a hardware interface; and the service test and management module is used for issuing a test task, transferring a mobile phone simulated by the system configuration module to generate signaling and sending the signaling to the core network for testing through the simulated network element for testing. In the system, the simulated mobile phone and core equipment before an access point are used for testing, which crosses a wireless network and avoids the occupation to wireless network resources and the influence of the wireless network on a testing result. Meanwhile, in the method of the invention, a GPRS terminal quantity and a high-intensity test task are generated through software simulation, thus the system expansion cost is relatively lower.
Owner:BEIJING WANET TELECOM TECH
Housekeeping software simulation test system based on technology of virtual instrument
ActiveCN102999425AImplement fault inputGood human-computer interfaceSoftware testing/debuggingSoftware emulationArea network
The invention relates to a satellite signal simulation technology and a virtual instrument technology, and discloses a housekeeping software simulation test system based on technology of a virtual instrument. The housekeeping software simulation test system comprises an industrial personal computer, an analog / digital signal input and output card, a serial port card, a CAN (Controller Area Network) bus card, and an FPGA (Field Programmable Gate Array) high-speed transmission card, wherein the industrial personal computer is connected with the cards, and the cards are connected with a housekeeping computer. The simulation test system functionally comprises a satellite separation module, a direct remote control module, an analog quantity telemetering module, a remote control digital input module, a telemetering reception and analysis module, a programmable command receiving module, a GPS (Global Position System) second signal module, a time reference module, a CAN data simulation module, a data transmission module and a serial port communication module. The housekeeping software simulation test system is formed by frame type hardware, and is programmed by the flexible software modules. Compared with the prior art, the housekeeping software simulation test system has the beneficial effects of being simple in structure, convenient to operate, short in development period, being widely suitable for various types of housekeeping software, and meeting flexibly-changed dynamic tests and nonstandard signal tests.
Owner:SHANGHAI SPACEFLIGHT INST OF TT&C & TELECOMM
Method for achieving UART (universal asynchronous receiver/transmitter) communication interfaces through software simulation
ActiveCN102546843AReduce the frequency of interruptionsReduce lossTransmissionElectric digital data processingCommunication interfaceUniversal asynchronous receiver/transmitter
The invention relates to a processing method for transmitting and receiving UART (universal asynchronous receiver / transmitter) communication interface data through software simulation in an embedded system. The method for achieving a plurality of UART communication interfaces through software simulation, provided in the invention, comprises a data receiving method and a data transmitting method, wherein baud rate timing is accurately achieved by a timer interruption function of a timer, and both transmitting and receiving are performed under the control of timer interruption. In the invention, for simulating one UART communication interface, only one timer, two I / O (input / output) ports and one software interrupt are required. For simulating a plurality of UART communication interfaces, the timer and the software interrupt are shared. Therefore, once one UART communication interface is added and expanded, only two I / O ports are required to be added. According to the invention, UART communication interfaces can be achieved through software simulation.
Owner:XIAMEN YAXON NETWORKS CO LTD
Simulation method for wind pressure coefficient of reflection plane antenna panel
InactiveCN106875488AEasy to changeLow costDesign optimisation/simulationSpecial data processing applicationsSoftware emulationEngineering
The invention discloses a simulation method for the wind pressure coefficient of a reflection plane antenna panel, and the method comprises the steps: firstly building an antenna panel geometric model through ProE software; secondly importing the geometric model into preposed dividing grid software ICEM-CFD, building and computing a flow field region range, and carrying out the grid dividing of the flow field region; thirdly enabling a grid file to be imported into flow field solving software FLUENT, carrying out the computing and solving through a series of settings, and obtaining the wind pressure distribution of the antenna panel; finally exporting the computing and solving result of the FLUENT, and compiling a MATLAB program to solve the blocked mean wind pressure coefficient value. The method solves a problem that a conventional reflection plane antenna is short of related tunnel test data, and determines the blocked wind pressure coefficient values of the antenna panel under various conditions through a software simulation method. The method can provide the visual flow field information, is low in cost, can carry out the repeated operation, facilitates the control of the change of simulation environment conditions, and is complete in result collection.
Owner:XIDIAN UNIV
Time synchronizer and time synchronization method applied to protective test equipment of power system
InactiveCN102769908AImprove performanceIncrease flexibilitySynchronisation arrangementHigh level techniquesWireless controlSoftware emulation
The invention discloses a time synchronizer applied to protective test equipment of a power system. The time synchronizer is characterized in that the time synchronizer is provided with a wireless control host machine with a master clock time synchronization hardware module, wherein the wireless control host machine is directly connected with a software simulation platform of an upper computer, and a slave clock time synchronization hardware module is arranged in a protective test terminal. Time synchronization between the master and slave clock time synchronization hardware modules is implemented through a wireless communication application IEEE (Institute of Electrical and Electronic Engineers) 1588 time synchronization protocol. According to the technology provided by the invention, the wireless IEEE1588 time synchronization protocol is applied to a secondary side test protective device of a transformer substation of the power system, so that a network signal of a mutual inductor obtained by simulation is synchronously output in real time, in this way, a signal network output of the power system can be stimulated more authentically so as to test a plurality of secondary side test protective devices of the transformer substation at the same time.
Owner:STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST +1
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