Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

87 results about "Virtual device" patented technology

A virtual device in Unix is a file such as /dev/null or /dev/urandom, that is treated as a device, as far as user level software is concerned, but is generated by the kernel without reference to hardware.

Interactive control method for virtual simulation training of power operation and maintenance

The invention discloses an interactive control method for virtual simulation training of electric power operation and maintenance, and particularly relates to the technical field of electric power operation and maintenance simulation, which comprises the following steps of: acquiring operation behavior data of students, performing real-time capability grading on the students by utilizing a multi-dimensional capability evaluation model, and performing real-time capability grading on the students; a difference adaptation parameter model is constructed in combination with the difference between the virtual device and the target actual device, training content with corresponding difficulty is matched from a preset training task library, a knowledge graph of students is constructed, and a personalized training path is generated through a path recommendation engine. Iteratively updating the training difficulty and the recommended path according to the newly generated behavior data and the performance of the trainee in the aspect of the difference adaptive capacity, constructing a difference adaptive parameter model, bringing the difference into a training task adjustment and capacity evaluation mechanism, dynamically adjusting the training task parameters to fit the actual equipment complexity, and evaluating the performance of the trainee in the aspect of the difference adaptive capacity. And a migration barrier between virtual training and real operation and maintenance is broken through.
Owner:BAISHAN POWER SUPPLY COMPANY OF STATE GRID JILIN ELECTRONICS POWER COMPANY

Chip testability design program code generation device and method

The invention provides a chip testability design program code generation device and method, and the device comprises a chip design file processing module which is used for receiving a chip design file; the testability design circuit generating and marking module is used for adding a test point and an observation point in a circuit of the chip according to a testability design rule of the chip; the resource dynamic calculation module is used for dynamically generating a pseudo netlist according to the flattening rule; the virtual device modeling module is used for modeling a virtual device and recording an FPGA model generated when the pseudo netlist is generated; the simulation and testability design collaborative optimization module is used for generating a simulation code of the verification platform according to the program code completion degree of the chip design file and performing simulation; and the design data sharing module is used for storing the shared chip design file. The invention further provides a method for implementing the device. According to the method, the efficiency of designing the chip test circuit can be improved, and the flexibility and usability of collaborative design of tools in different design stages of the chip are improved.
Owner:ZHUHAI SILICON CORE TECHNOLOGY CO LTD

Mixed reality industrial simulation training system

The invention provides a mixed reality industrial simulation training system which is composed of a space fusion perception unit, a multi-physics field simulation unit, a cooperative training management unit and a self-adaptive teaching engine. The space fusion sensing unit is composed of a real-time environment modeling and positioning subsystem and a physical interaction detection algorithm, and the real-time environment modeling and positioning subsystem dynamically constructs a three-dimensional space coordinate system of a real industrial scene through a visual sensor array and a radio frequency scanning device; generating a pose matrix of the virtual equipment model in the perspective display interface; the physical interaction detection algorithm realizes contact force feedback between virtual and real objects based on dynamic solution of collision volume, and when an operator triggers a virtual switch through a handheld controller, a real equipment control signal is synchronously driven; the multi-physics field simulation unit comprises a physical engine core module and a fault injection interface.
Owner:BEIJING LINGLONG TECHNOLOGY CO LTD

Smart home and automatic control system thereof

The invention discloses a smart home automation control system, and belongs to the technical field of smart home. The system specifically comprises the following steps: S1, a protocol dynamic adaptation library of a multi-protocol compatible module is compatible with a mainstream communication protocol, a unified virtual ID is generated based on a virtualization mapping technology, unified management of heterogeneous equipment is realized, and an adaptive scene control module manages added equipment; through a dynamic adapter and a protocol adaptive negotiation algorithm, a cross-brand and cross-protocol equipment interconnection ecology is constructed, the core value lies in thoroughly breaking the protocol island problem in the field of smart home, and a virtual equipment mapping technology further converts non-standard protocol equipment into a unified data interface, so that equipment of different brands can be seamlessly cooperated, and the communication efficiency is improved. By deploying a multi-modal data fusion engine and an edge real-time decision engine locally, the response speed and the data processing efficiency of the system are greatly optimized.
Owner:YIXING MUSEN SMART HOME CO LTD

Rail transit dispatching simulation practical training and automatic examination system integrated with emergency assistance

The invention discloses a rail transit dispatching simulation practical training and automatic examination system integrated with emergency assistance, and relates to the technical field of simulation practical training, and the system comprises a data collection module which is used for collecting basic data, operation data and historical emergency event data of a rail transit system; and the simulation environment construction module is used for constructing a high-fidelity rail transit simulation environment by applying a digital twin technology based on the data acquired by the data acquisition module, mapping a geometric field model, a physical field model, a behavior field model and a rule field model which are required by virtual equipment, constructing a four-model mapping rule base and fusing a multi-field model. According to the invention, the simulation environment construction module relies on a digital twinning technology and real acquired data, combines geometric, physical, behavioral and regular four-field models and a mapping rule base, constructs a high-fidelity simulation environment and meets diversified practical training requirements, and the emergency aid decision-making module introduces a quantum computing technology and can quickly process mass data in a complex scene.
Owner:SOUTHWEST JIAOTONG UNIV

Chip testability design program code generation device and method

The present invention provides a device and method for generating program code for chip design for testability, the device comprising a chip design file processing module for receiving chip design files; a design for testability circuit generation and marking module for adding test points and observation points in the circuit of the chip according to the design for testability rules of the chip; a resource dynamic calculation module for dynamically generating a pseudo netlist according to flattening rules; a virtual device modeling module for modeling virtual devices and recording the FPGA model generated when generating the pseudo netlist; a simulation and design for testability collaborative optimization module for generating simulation code of a verification platform according to the completion degree of the program code of the chip design file and performing simulation; and a design data sharing module for storing shared chip design files. The present invention also provides a method for implementing the above-mentioned device. The present invention can improve the efficiency of designing chip test circuits and improve the flexibility and ease of use of collaborative design of tools at different chip design stages.
Owner:ZHUHAI SILICON CORE TECHNOLOGY CO LTD

Multi-architecture chip compatible localized cloud platform virtualization method

The invention discloses a multi-architecture chip compatible localized cloud platform virtualization method, which is suitable for a localized cloud computing environment constructed by taking a localized CPU (Central Processing Unit) as a core. Comprising the following steps: when a plurality of domestic CPUs and compatible architecture information are collected at a bottom layer of a domestic cloud platform, establishing a unified hardware abstract model; constructing a virtualization compatibility layer on a domestic cloud platform virtual machine monitor; designing a cross-architecture virtual device agent module, and redirecting a domestic peripheral driver; and a unified scheduling and security isolation strategy is constructed, and efficient cooperation and trusted operation of the multi-architecture virtual machine under the localized cloud platform is realized. According to the method, instruction-level compatibility and unified operation environment construction of the heterogeneous chip in the localized cloud platform are realized, and the performance and stability of cross-architecture migration of the virtual machine are remarkably improved.
Owner:STATE GRID LIAONING ELECTRIC POWER CO LTD

Virtualization automatic modeling and verification method and system for protection control device

The invention discloses a protection control device virtualization automatic modeling and verification method and system, and belongs to the technical field of power system relay protection, and the method comprises the following steps: creating a system management process as a resident process for providing a core system management function, comprising a multi-device process management and guard module and a virtual device creation and management module, a static configuration model file is loaded, and the static configuration model file serves as an external configuration model, describes the capacity of an actual physical device and is used for creating a corresponding virtual device process; the method comprises the following steps: virtualizing a relay protection device into an independent virtual device process, and realizing a plurality of board cards contained in the relay protection device into a plurality of threads of the virtual device process; and injecting dynamic data for assisting in verifying and testing the dynamic characteristics and service functions of the virtual device process.
Owner:BEIJING SIFANG JIBAO ENG TECH +2

Domestic desktop terminal peripheral compatible method and system based on protocol reverse mapping and computer readable storage medium

The invention belongs to the field of computer system compatibility and peripheral interfaces, and relates to a domestic desktop terminal peripheral compatibility method and system based on protocol reverse mapping and a computer readable storage medium. According to the method, after peripheral access, three-layer analysis of physical layer signal reversal, data link layer structure reversal and application layer semantic reversal is carried out in sequence, and an equipment interface type, a frame structure and instruction semantics are dynamically identified. And based on the reverse result, dividing the equipment into a standard protocol or a private protocol through a protocol type decision, respectively routing the protocol to a drive straight-through module or an instruction translation executor for processing, and finally providing compatible services for a domestic service system through a unified virtual equipment interface. According to the method, the adaptation problem of a document-free private protocol is solved, plug and play of a Wintel peripheral by a non-x86 architecture domestic terminal is achieved, the protocol compatibility coverage rate is remarkably increased, meanwhile, the CPU occupancy rate is reduced, and the harsh requirement for millisecond response of specific industries such as electric power is met.
Owner:XIAMEN UNIV OF TECH

Virtualized network device and operating system for managing virtualized network device

The invention discloses virtualized network equipment and an operating system for managing the virtualized network equipment, and relates to the technical field of cloud sharing, and the virtualized network equipment comprises a terminal, a cloud platform and an equipment end, the cloud platform comprises a user demand building module, a service providing module, a dynamic interaction module, an intelligent scheduling monitoring module, an intelligent hierarchical scheduling module, a monitoring scheduling visualization module, a heterogeneous operating system supporting module and a virtual device management module. According to the virtualized network equipment and the operating system for managing the virtualized network equipment, equipment capable of surfing the internet is converted into sharable cloud service virtual equipment by carrying shared virtual software on the equipment, and an IT sharing mode can be realized through a cloud computing technology. Through the sharing mode, the use cost of the user can be greatly reduced, various heterogeneous operating systems are supported, the decoupling of the virtual resources of the network equipment and the terminal operating system of the user is realized, and the network equipment is converted into a sharable cloud service.
Owner:ZHENJIANG QIZHIYUN TECH CO LTD

A domestic desktop terminal peripheral device compatibility method and system based on protocol reverse mapping and a computer readable storage medium

The application belongs to the field of computer system compatibility and peripheral interface, and relates to a domestic desktop terminal peripheral compatibility method and system based on protocol reverse mapping and a computer readable storage medium. After the peripheral is accessed, the method sequentially performs three-layer analysis of physical layer signal reverse, data link layer structure reverse and application layer semantic reverse, dynamically identifies device interface type, frame structure and instruction semantics. Based on the reverse result, the device is divided into standard protocol or private protocol through protocol type decision, and is routed to a drive pass-through module or an instruction translation executor for processing, respectively, to finally provide compatibility services for domestic business systems through a unified virtual device interface. The application solves the adaptation problem of undocumented private protocols, realizes plug-and-play of Wintel peripherals for non-x86 architecture domestic terminals, significantly improves protocol compatibility coverage, reduces CPU occupancy, and meets the stringent requirements of millisecond-level response in the power and other specific industries.
Owner:XIAMEN UNIV OF TECH

Information processing system, recording medium, and information processing method

An information processing system, a recording medium, and an information processing method. The information processing system includes: a physical device; a service device that performs a service for updating the application program installed in the physical device; and a virtual device of the physical device that holds metadata including information indicating the number of versions of the application program installed in the physical device. The information processing system is provided with one or more processors that: when a service device references metadata and transmits an updated application program to a physical device that is specified as a device to be updated for an application program, the service device transmits request information requesting transmission of the application program to the physical device to a virtual device; when the virtual device receives the request information from the service device, the virtual device transmits the updated application program or instruction information for instructing the application program to be received from the service device to the corresponding physical device, and when the physical device receives the application program or the instruction information from the virtual device, the physical device updates the application program.
Owner:FUJIFILM BUSINESS INNOVATION CORP

Resource acquisition method and device, equipment and storage medium

The invention provides a resource acquisition method and device, equipment and a storage medium, and belongs to the technical field of computers. According to the method, the resource acquisition page and the form of the content contained in each sub virtual device are clearly displayed, so that the user can intuitively understand the available virtual items and virtual props, the understanding threshold of the user is reduced, and the willingness of the user to participate in the resource acquisition activity and the information acquisition efficiency are improved. According to the method, the trigger operation is responded in real time, the virtual items and the virtual props are displayed, timely operation feedback is given to a user, the user can feel direct association between the operation and a result, and the man-machine interaction efficiency is improved. The target virtual resource is displayed by combining the virtual item with the virtual item, so that the combination of the virtual item and the virtual item is realized, and diversified playing methods are provided for a user. According to the scheme, the mode of obtaining the virtual resources is enriched, the interactivity between the user and the virtual goods is improved, and the man-machine interaction efficiency is improved.
Owner:BEIJING DAJIA INTERNET INFORMATION TECH CO LTD

A monorail hoist operation monitoring system and method based on VR simulation

The present invention is a monorail crane operation monitoring system and method based on VR simulation, which relates to the field of VR virtual reality; the VR virtual device subsystem is communicatively connected to a structure data acquisition module and a robot display module; the present invention obtains a VR virtual scene of the monorail crane operation by setting VR virtual interactive glasses, and collects structure data of the monorail crane operation through a robot wearing VR virtual interactive glasses; processes the structure data to obtain abnormal structure data; receives the abnormal structure data, obtains an abnormal functional structure area according to the abnormal function data, generates abnormal three-dimensional structure data based on the abnormal functional structure area and presents it; generates an alarm signal according to the abnormal functional structure area; receives the alarm signal and processes the abnormal functional structure area; the present invention improves the accuracy and convenience of the monorail crane in operation monitoring.
Owner:HUABEI MINING (GRP) CO LTD

Virtual device interaction method and device, electronic equipment and storage medium

The invention provides a virtual device interaction method and device, electronic equipment and a storage medium, in response to release of a target game skill for a first to-be-activated object by a virtual object, an activation progress corresponding to the first to-be-activated object is increased, and when the activation progress corresponding to the first to-be-activated object reaches a preset progress threshold, the first to-be-activated object is activated. Determining that the first to-be-activated object is activated; determining a second to-be-activated object in a non-activated state from the game scene, and displaying the second to-be-activated object in a visual state; and in response to activation of the specified number of to-be-activated objects in the game scene, adjusting the target virtual object in the game scene to be in a target state. According to the method, after a virtual object controlled by a player activates a certain to-be-activated object in a game scene, other to-be-activated objects in a to-be-activated state in the game scene are displayed in a visual state, so that the player can control the virtual object to quickly go to positions where other to-be-activated objects are located; therefore, the time for finding and activating the to-be-activated object is shortened.
Owner:NETEASE (HANGZHOU) NETWORK CO LTD

System for access control management

A process includes receiving a first message generated in response to a first client computing device being associated with a first activation device, where the first message includes a first client computing device identifier associated with a first user of the first client computing device and a first activation device identifier of the first activation device, and identifying a first virtual device associated with the first active device based on the association configuration and the first active device identifier. The process may also include identifying a first application associated with the first virtual device based on the first virtual device and the association configuration, and running the first application associated with the first virtual device in response to the first message.
Owner:CUEMILL CORP

Power system data configuration method and device, electronic equipment and storage medium

The invention relates to the technical field of power system data processing, and provides a power system data configuration method and device, electronic equipment and a storage medium. The power system data configuration method is applied to transmitting end equipment and comprises the steps of creating a first communication channel; determining a first configuration mode in the communication attribute of the first communication channel; if the first configuration mode is a device mode or a virtual device mode, a target device model is determined from a preset device model library, and the target device model is a model constructed based on a device type; adding at least one device corresponding to the target device model in the first communication channel; and generating a channel device list document based on the target device model and the preset communication device model. According to the method, compatibility of multiple configuration modes is achieved, the adaptability of communication point table configuration is improved, manual configuration errors are reduced, the workload is reduced to a large extent, convenience is improved, and therefore the communication point table configuration efficiency is improved to a large extent.
Owner:ZHUHAI UNITECH POWER TECHNOLOGY CO LTD

Multi-link data transmission method and system, storage medium, and electronic device

The present disclosure provides a multi-link data transmission method and system, a storage medium, and an electronic device. The method is applied to a first device of a data transmission system, wherein the data transmission system further comprises an unmanned aerial vehicle and a second device. The method comprises: monitoring operation states of the unmanned aerial vehicle and the second device; when it is determined that the operation state of a communication device is an offline state, sending a start instruction to a virtual service device, so as to start the virtual service device, wherein the communication device is the unmanned aerial vehicle or the second device, and the virtual service device is an unmanned aerial vehicle virtual device or a second virtual device; and sending target data to the virtual service device, wherein the target data comprises task data and / or a control instruction, and the target data is used for controlling an operation state of the virtual service device. Some embodiments of the present disclosure can realize stable communication of the data transmission system.
Owner:JIANGSU YUNSHENG INTELLIGENT TECHNOLOGY CO LTD

Method and device for realizing X window zooming in Wayland environment, electronic equipment and storage medium

The invention provides a method, a device and equipment for realizing X window zooming in a Wayland environment and a storage medium, and the method comprises the steps: selecting a maxscale, updating the related information of the maxscale, and transmitting the updated information to an XWayland; adjusting the screen size and geometric coordinates of the virtual device, and storing the updated xft.dpi and notifying the X11; x11, drawing a buffer according to the scaled screen size and the updated xft.dpi, and converting into a wlsurface and a wlbuffer on the basis of the buffer; after the Wayland synthesizer receives the surface, the Wayland synthesizer carries out reverse scaling on the surface; and when the surface is returned, the surface is zoomed and converted according to the maxscale and then is sent. Therefore, the method can solve the problem that the XWayland is blurred in display in a high-resolution scene.
Owner:KYLIN CORP

Circuit design method, virtual device, circuit design equipment and storage medium

The invention provides a circuit design method, a virtual device, circuit design equipment and a storage medium. The method comprises the following steps: acquiring a target circuit design demand of a user; a pre-maintained circuit design library is called, and the circuit design library comprises mapping relations between different circuit design requirements and different circuit design schemes; under the condition that a target circuit design scheme corresponding to the target circuit design requirement exists in the mapping relation in the circuit design library, target circuit design is carried out based on the target circuit design scheme; and under the condition that the target circuit design scheme corresponding to the target circuit design demand does not exist in the mapping relationship in the circuit design library, generating a circuit design script command based on the target circuit design demand, and executing the circuit design script command to perform target circuit design. Automatic and efficient circuit design is realized, manual operation is not needed, and the working efficiency and the working accuracy are improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +3

Simulation system and simulation method

Provided is a simulation system that simulates an operation of a cell including a robot and a device, wherein the simulation system comprises a virtual device that simulates an output of the device and a a virtual robot controller that simulates, according to an output of the virtual device, an operation of a robot controller that controls the robot, and the virtual device performs an output based on a plurality of output histories of the device.
Owner:YASKAWA DENKI KK

A virtual reality device control method and apparatus, a terminal device, and a storage medium

The application discloses a virtual reality device control method and device, a terminal device and a storage medium, and belongs to the field of virtual device control. The method is as follows: controlling a virtual reality device to simultaneously and independently display an optotype image in left and right eye display channels; according to a preset prism degree adjustment scheme, sequentially controlling the optotype images in the left and right eye display channels to simultaneously perform horizontal offset, so as to simulate an equivalent prism deflection effect, and collecting binocular gaze data of a wearer; and according to the binocular gaze data, controlling the virtual reality device to output binocular convergence flexibility of the wearer. Therefore, by implementing the application, the problem of how to realize standardized, objective and automatic binocular convergence flexibility evaluation of a tester can be solved.
Owner:GUANGZHOU SHIJING MEDICAL SOFTWARE CO LTD

Shooting range resource reuse and security isolation method and system in high-concurrency scene

The invention discloses a target range resource reuse and security isolation method and system in a high-concurrency scene, and belongs to the technical field of network simulation. The method comprises the following steps: receiving a network topology and initial network parameters defined by a user, and storing the network topology and initial network parameters as a topology description file; the system supports concurrent receiving and processing of a plurality of independent instantiation requests for the same topology; distributing a unique identifier for the instance corresponding to each request; for each instance, quickly cloning the virtual device based on a copy-on-write mechanism; creating an independent network namespace for each instance, distributing a unique VXLAN network identifier from the global VNI pool, and injecting the unique VXLAN network identifier into the namespace; automatically injecting the initial network parameters as fixed configuration into each device in an instance; and finally, accessing the equipment into the exclusive namespace and starting the equipment. According to the invention, the problems of large resource consumption and difficult network isolation in a large-scale concurrent simulation scene are solved, and the concurrent processing capability and the operation efficiency of a target range system are remarkably improved.
Owner:HENAN ZHUOTONG INFORMATION TECHNOLOGY CO LTD

Interrupt processing method and device, electronic equipment and storage medium

The invention relates to an interrupt processing method and device, electronic equipment and a storage medium, and the method comprises the steps: receiving a target interrupt signal sent by target equipment, and obtaining a target interrupt number and an interrupt mapping table corresponding to the target interrupt signal; the interrupt mapping table comprises an interrupt flag bit corresponding to each preset interrupt number in the at least one preset interrupt number and a corresponding virtual device identifier, and the interrupt flag bit is used for indicating whether the corresponding preset interrupt signal belongs to a straight-through interrupt signal or not; under the condition that the target interrupt flag bit indicates that the target interrupt signal is a straight-through interrupt signal, obtaining a target virtual device identifier corresponding to the target interrupt number from an interrupt mapping table; and sending the target interrupt signal to a target virtual device corresponding to the target virtual device identifier, so that the target virtual device performs interrupt processing. By utilizing the embodiment of the invention, the efficiency of executing interrupt sending by the direct connection interrupt signal can be improved, the interrupt time delay is reduced, and the working efficiency and the virtualization performance of the virtual machine are greatly improved.
Owner:CHINA AUTOMOTIVE INNOVATION CORP

Virtual object assembling method and device, electronic equipment and storage medium

The invention discloses a virtual object assembling method and device, electronic equipment and a computer readable storage medium, and the method comprises the steps: determining at least two pieces of triggered target equipment in response to an equipment triggering operation of candidate equipment in an equipment list; in response to a selection event of a target virtual battle object in the virtual battle objects, determining that the target virtual battle object is an object to be assembled; and synthesizing the at least two target devices into a target synthesis device, and assembling the target synthesis device on the target virtual battle object. According to the embodiment of the invention, the assembling efficiency of assembling the plurality of virtual devices on the virtual object can be improved.
Owner:NETEASE (HANGZHOU) NETWORK CO LTD

Virtual machine simulation event handling methods, apparatus, devices and media

This application discloses a virtual machine simulation event processing method, apparatus, device, and medium, relating to the field of virtual device simulation. The method includes: analyzing an event to determine the target virtual machine initiating the event and the event type; when the event type is determined to be an IO event, using an IO event read / write thread pool to obtain data operation instructions corresponding to the IO event; determining the virtual hard disk to be operated on based on the data operation instructions; executing the simulated operation corresponding to the data operation instructions on the virtual hard disk; generating the simulated operation result; and forwarding the simulated operation result to the target virtual machine via KVM. This reduces system call overhead during virtual machine IO processing, thereby improving performance while ensuring functional integrity. Furthermore, the method steps reduce the complexity and adaptation difficulty of interfacing with new hardware, balancing efficiency, completeness, and scalability.
Owner:JINAN INSPUR DATA TECH CO LTD

A method, virtual device, medium, and equipment for interaction between a vehicle and a user.

This specification provides a method, virtual device, medium, and equipment for interaction between a vehicle and a user, applied to a central control device of a vehicle, which also includes a camera device and a projection device. The method includes: determining a user action area and a display area in the external environment of the vehicle; controlling the camera device to continuously capture images of the user action area, and determining the positional range of the user's actions within the user action area by comparing the continuously captured two-dimensional images of the action area; determining a triggered interactive sub-area based on the positional range of the user's actions within the user action area; and controlling the projection device to project onto the display area based on a projection scheme associated with the triggered interactive sub-area. This method provides an interaction scheme for the user.
Owner:ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD +1

Report management system, method and equipment for virtual device cloud simulation and medium

The invention discloses a report management system, method, equipment and medium for virtual device cloud simulation, and the system comprises a storage server which is configured to store report content; a database configured to store report records; the report container is configured to query and modify the report record in the database, access the report content of the storage server according to the report record, and display and modify the report content; the virtual tester container is configured to manage starting, running and ending of the virtual device container and read reports in the virtual device container; the server is further configured to store the report content to the storage server and add or modify accessible report records in the database; and the virtual device container is configured to read the numerical value in the virtual tester container, simulate actual device operation and record an operation report. The technical framework of the container cloud platform can be met, the virtual device test report can be stored, checked and shared, and the simulation test efficiency and the user experience can be effectively improved.
Owner:NR ENG CO LTD +1

Speed bridge for emulation hardware

A speed bridge which provides high verification productivity in a hardware emulation system by allowing for time-efficient communication between a host / server and a device under test is disclosed. The speed bridge emulates the host to the device and the device to the host simultaneously while being in communication with both. When the message / response between the host and the device is fixed, the virtual host communicates with the virtual device. When the message / response requires physical interaction, the speed bridge passes the message / response between the host / server and the device.
Owner:HONG KONG APPLIED SCI & TECH RES INST

A method and system for judging the failure of multiple packers based on the calculation of pipe string deformation

The present invention discloses a method and system for judging the failure of multiple packers based on the calculation of pipe string deformation, which relates to the technical field of oil and gas well packers. The method includes the following steps: calculating the first change length based on the total axial force change, calculating the second change length based on the radial force received by the pipe string, calculating the third change length based on the temperature change received by the pipe string, calculating the fourth change length based on the virtual force of the buckling effect of the pipe string, and calculating the fifth change length based on the relaxation force received by a single packer. Whether the entire multiple packer string fails is judged by the sum of all change lengths; the system is a virtual device for this method. The judgment method and system calculate the deformation of the pipe string by combining five factors: end face force, radial force, temperature, buckling, and relaxation force. The total deformation obtained by calculation is more real and accurate, and can provide a reliable judgment basis for the deformation failure of the packer.
Owner:SICHUAN UNIV