27 results about "Virtual device" patented technology

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

This invention relates to the fields of virtualization technology and high-availability computing technology, specifically to a fault-tolerant method and virtual device for GPU passthrough virtual machines. The method includes: intercepting the computation instruction stream destined for the passthrough GPU on the primary virtual machine side, generating an instruction log queue, and periodically collecting the GPU execution context to generate state snapshots; sending the instruction log queue and state snapshots to a backup virtual machine through a synchronization channel; performing delayed replay of the instruction log queue on the backup virtual machine side to ensure its GPU state remains consistent with the primary virtual machine; and when a primary virtual machine failure is detected, promoting the backup virtual machine to the new primary virtual machine and resuming the execution of GPU computation tasks based on the most recent state snapshot and the incomplete instruction log queue. This invention achieves fault-tolerant switching of computation tasks in a GPU passthrough virtual machine environment with no or near-zero interruption.

This invention provides a path planning method for a robotic vacuum cleaner, a robotic vacuum cleaner, and a virtual device, applied to a robotic vacuum cleaner. The method includes: acquiring a regional map image of the area to be cleaned, and determining cleaning reference lines on the regional map image based on the regional information of the area to be cleaned; determining key points on the regional map image, and dividing the regional map image into multiple sub-regional map images based on the key points; determining the inter-regional access order of each sub-region corresponding to each sub-regional map image, and determining the intra-regional access order within each sub-regional map image based on the inter-regional access order and the cleaning reference lines; and planning the cleaning path of the robotic vacuum cleaner regarding the area to be cleaned based on the intra-regional access order and the inter-regional access order. This achieves reasonable and efficient path planning for the robotic vacuum cleaner, avoiding problems such as path duplication, missed cleaning areas, or improper cleaning order.

The invention provides a high-precision delta-sigma modulator based on time-sharing chopping. The high-precision delta-sigma modulator comprises a first-stage integrator, a second-stage integrator, a third-stage integrator, an adder, a comparator, two pairs of chopper circuits and an analog-to-digital converter, according to the invention, two pairs of chopper circuits are arranged, a time-sharing clock control technology is adopted, and a virtual device layout matching design is combined, so that accurate suppression of multi-source low-frequency interference is realized. The modulator adopts a three-order CIFF architecture, internal noise and imbalance of an operational amplifier are eliminated through a time-sharing controlled chopper 1, input charge injection, switching nonlinearity and DAC feedback errors are eliminated through a system-level chopper 2, and the stability of the sampling and integration process is ensured in cooperation with an optimized clock delay design. Under the sampling frequency of 1.024 MHz, the signal-to-noise distortion ratio reaches 106.7 dB, the noise suppression capability is improved by 68.1 dB, and the total power consumption is only 504 mu W.

This invention provides a fully mechanized mining face communication system, a fully mechanized mining face communication method, and a virtual device. The system includes a controller, sensors, a proxy server, and a mining face server. A wireless subnet is established based on the controller, sensors, and proxy server, allowing information that the controller and sensors need to transmit to the mining face server to be transmitted via the proxy server. The controller includes at least a support controller, a coal mining machine controller, an operating remote control, and a scraper conveyor controller. Because the fully mechanized mining face communication system integrates multiple control devices, it can form a highly integrated fully mechanized mining face communication system. Furthermore, by establishing a wireless subnet based on the controller, sensors, and proxy server, with each proxy server responsible for the control devices within a certain area, the problem of high signal attenuation at the mining face is effectively alleviated, thereby significantly improving the automation and intelligence level of fully mechanized coal mining operations.

The invention relates to a transformer substation monitoring system based on a master station and substation service interaction mechanism. The transformer substation monitoring system comprises an automatic equipment remote operation and maintenance master station and an automatic equipment remote operation and maintenance substation. The automatic equipment remote operation and maintenance substation communicates with the automatic equipment remote operation and maintenance master station and communicates with intelligent electronic equipment of a transformer substation, the automatic equipment remote operation and maintenance substation comprises an equipment virtual module, and the equipment virtual module comprises a plurality of virtual intelligent electronic equipment. And each virtual intelligent electronic device corresponds to each intelligent electronic device in the substation and is used for storing monitoring information of the intelligent electronic device. According to the invention, a servitization main station and substation data communication mode is adopted, and on-demand retrieval of various data of the substation by various services of the main station is realized.

A vehicle includes a wireless communication device and a proximity communication device. The vehicle receives a registration request for an owner key from a management server. The vehicle executes an activation process for the owner key via wireless communication using the wireless communication device in a case in which the received registration request includes information indicating that an owner device is a virtual device implemented on a server. The vehicle executes the activation process for the owner key via proximity communication using the proximity communication device in a case in which the received registration request does not include the information indicating that the owner device is the virtual device.

The application discloses a differential gate tunneling current monitoring and resetting circuit applied to a low-power intermittent phase-locked loop, comprising a phase-locked loop (PLL), a second switch, a copy capacitor, a virtual device, a positive threshold comparator, a phase-locked loop state indication module and a crystal oscillator, wherein the phase-locked loop (PLL) comprises a phase-frequency discriminator, a charge pump, a series RC filter, a first switch, a filter capacitor, a voltage-controlled oscillator and a frequency divider, and the application realizes a leakage monitoring and resetting mode which is independent of PLL locking initial value, has strong robustness and low static power consumption, does not need an additional low-frequency clock, reduces power consumption and area, accurately controls frequency drift, adapts to flexible requirements, partially offsets temperature influence, enhances environmental adaptability, simplifies circuit control logic and improves working reliability.

The invention discloses an equipment control method and device, equipment, a medium and a product, and the method is applied to Internet of Things equipment, and comprises the steps: receiving a control instruction sent by user equipment; and obtaining a running state parameter of the intelligent device based on the control instruction, determining a running state of the intelligent device based on the running state parameter, and sending a rendering instruction including a second device identifier to the user device based on the control instruction, so that the user device obtains an animation resource corresponding to the second device identifier from the server based on the rendering instruction, the animation resources are pre-rendered to generate animations; and when the running state parameter represents that the intelligent equipment is in a normal state and first information sent by the user equipment is received, sending a first execution instruction for controlling the intelligent equipment to start to the intelligent equipment, and sending a second execution instruction for controlling animation playing to the user equipment, according to the mode, synchronous linkage of the virtual equipment and the intelligent equipment can be realized.

The application relates to the field of I2C device management, in particular to a device tree management method and device, a terminal device and a readable storage medium, the method comprising the following steps: a virtual device entity is established according to a device; the attributes of the device entity comprise a device unique identifier, a parent device unique identifier and a parent device channel unique identifier; a device tree configuration file comprises the device unique identifier value, the parent device unique identifier value and the parent device channel unique identifier value of each device; a device instance is obtained by instantiating the corresponding entity, the attributes of the device instance are valued according to the device tree configuration file; the parent device is found step by step according to the parent device unique identifier of the device instance until the root device is found, and the acquired parent device channel unique identifier and parent device unique identifier are stored in a channel linear storage unit step by step from the device; and the device is accessed according to the channel linear storage unit. Therefore, the problems of slow I2C slave device access speed and unclear device logical relationship are solved.

The invention relates to a computer-implemented method for identifying at least one code change (14) required for generating a virtual device (10), in particular a virtual controller, for testing and / or verifying a predetermined function, in particular an automated driving function, of a motor vehicle, the method comprises the following steps: providing (S1) at least one source code segment (12) for testing and / or verifying a predetermined function of the motor vehicle; applying (S2) a machine learning algorithm (A) to the at least one source code segment (12) to identify the at least one desired code change (14); and outputting (S3) a data set (16) of information for generating the code changes (14) required for testing and / or verifying the virtual device (10) of the predetermined function of the motor vehicle. The invention further relates to a computer-implemented method for providing a machine learning algorithm (A).

The invention provides a hierarchical cleaning method, a sweeping robot, a virtual device and an electronic device.The method is applied to the sweeping robot and comprises the steps that mapping is conducted on a to-be-cleaned area, and a grid map of the to-be-cleaned area is obtained; dividing the to-be-cleaned area into smudginess sub-areas with different smudginess grades according to the smudginess grades; marking the grid map according to the dirty sub-regions of different dirty levels to obtain a target grid map, the target grid map being a grid map containing the marking information of the dirty sub-regions of different dirty levels; and based on the target grid map, according to the smudginess levels of the smudginess sub-regions, calling cleaning strategies corresponding to the smudginess levels to perform graded cleaning on different smudginess sub-regions in the to-be-cleaned region. The to-be-cleaned area can be cleaned in a grading manner according to the dirt grade of the to-be-cleaned area, so that the cleaning efficiency of the sweeping robot is improved, and an ideal cleaning effect is achieved.

The invention belongs to the technical field of the Internet of Things, and particularly relates to an intelligent linkage method for user security and protection equipment based on the Internet of Things. The method comprises the following steps: dynamically generating a high-simulation virtual device at a home fog node to trap an attacker; capturing interaction behaviors and generating a standardized log; identifying an attack intention through a pre-trained multi-layer perceptron model; when the confidence exceeds a threshold value, isolating real equipment and broadcasting attack characteristics to the community security network; and cooperative neighbor nodes construct an isolation sandbox, redirect attack traffic and inject false information to consume resources thereof. According to the method, through the technical scheme, active trapping, intelligent identification and group collaborative countering are realized, the early warning and defense capability of the home Internet of Things on zero-day attacks is remarkably improved, and high-value threat intelligence is generated.

An operation information acquisition section acquires operation information indicating movement of an operation apparatus being held by a user's hand. The operation apparatus includes a kinesthetic sense presentation section that presents a kinesthetic sense to the user's hand and a tactile sense presentation section that presents a tactile sense to the user's hand. A control section controls movement of a virtual device corresponding to the operation apparatus in a space where a virtual object exists, according to the operation information. The control section generates first driving data for driving the kinesthetic sense presentation section and second driving data for driving the tactile sense presentation section, on the basis of a relation between the virtual device and the virtual object.

The application discloses a high-slope GNSS monitoring data elevation correction method and system, relates to the technical field of GNSS slope monitoring, and comprises the following steps: acquiring first observation data of a base station and second observation data of at least one GNSS measuring point, wherein the at least one GNSS measuring point has a height difference with the base station; calculating a change between each second observation data and the first observation data to obtain fluctuation data; establishing a height difference correction model based on all the fluctuation data; obtaining a correction value of a to-be-measured point by using the height difference correction model, and assigning the correction value to initial observation data of the to-be-measured point; and the system is a virtual device of the method. The correction method and system can establish an elevation correction model according to statistical relative change rules between the elevation GNSS measuring points and the base station, and can additionally correct the troposphere delay of other measuring points according to the model.

The invention discloses a differential gate tunneling current monitoring and resetting circuit applied to a low-power-consumption intermittent phase-locked loop, which comprises a phase-locked loop (PLL), a second switch, a copy capacitor, a virtual device, a positive threshold comparator, a phase-locked loop state indication module and a crystal oscillator, the phase-locked loop (PLL) comprises a phase detection discriminator, a charge pump, a series RC filter, a first switch, a filter capacitor, a voltage-controlled oscillator and a frequency divider, an electric leakage monitoring and resetting mode which is irrelevant to a PLL locking initial value, high in robustness and low in static power consumption is achieved, an extra low-frequency clock is not needed, power consumption and area are reduced, frequency drift is accurately controlled, and the reliability of the electric leakage monitoring and resetting circuit is improved. The adaptive flexible requirements are met, the temperature influence is partially counteracted, the environmental adaptability is enhanced, the circuit control logic is simplified, and the working reliability is improved.

The invention provides a virtual-real bidirectional interaction method and system based on a block chain and near field communication, and belongs to the technical field of virtual-real interaction. The method comprises the following steps: establishing initial connection between virtual and real scene equipment through a near field communication module, and sending a first data packet containing object state, environment and object attribute parameters by the real equipment; the virtual device generates first virtual data through a dynamic virtual-real mapping algorithm, and the first virtual data is written into a distributed account book through PBFT consensus by a block chain core node after edge pre-verification to obtain second virtual data; the second virtual data is fed back to the reality device to adjust the display and operation states of the reality device, and meanwhile, the reality device is supported to actively control the virtual scene and perform transmission abnormity compensation. The system comprises virtual and real devices corresponding to function modules and block chain distributed nodes, solves the problems of desynchrony, non-traceability and low interaction reliability of virtual and real data in the prior art, and is suitable for high-demand virtual and real interaction scenes.

The invention relates to a micro-vibration evaluation method of a spatially distributed optical interferometer and a virtual device, and is applied to the technical field of aerospace. According to the invention, the disturbed type of the spatial distributed light interferometer running along with the spacecraft formation is obtained. And based on the disturbed type, obtaining a pose influence parameter of the spatial distributed light interferometer. And determining a pose parameter of a movable mirror surface of the spatial distributed light interferometer in the observation time period based on the pose influence parameter. And simulation imaging is carried out based on the pose parameters, and the imaging ambiguity of the spatial distributed light interferometer in the observation time period is determined. And according to the imaging ambiguity and the pose parameter, determining a micro-vibration evaluation result of the spatial distributed light interferometer. By determining the relationship between the imaging result and the pose state of the movable mirror surface under different disturbance factors, the influence on the imaging quality when the spatial distributed optical interferometer generates micro-vibration can be analyzed. Therefore, the imaging quality of the spatially distributed optical interferometer can be improved.