172 results about "Analog device" patented technology

The invention discloses a virtual-real combination-based power generation side industrial control system network security target construction method. The method comprises the following steps of: constructing a virtual-real combination target environment consisting of a physical equipment layer and a virtual model layer; the heterogeneous industrial control protocol between the physical equipment layer and the virtual model layer is analyzed, protocol semantic information is extracted, and a bidirectional dynamic mapping rule of a physical equipment state and a virtual model state is generated based on the protocol semantic information; based on a state change event of the physical equipment layer, according to a bidirectional dynamic mapping rule, synchronizing changed equipment state data to the virtual model layer in real time, and simulating protocol behavior logic corresponding to the equipment state data in the virtual model layer according to a security test requirement; and based on the attack instruction or the abnormal state signal generated by the virtual model layer, according to the protocol specification format of the target physical equipment, converting the instruction or the signal into an executable control command, and driving the physical equipment layer to execute an operation corresponding to the control command.

The invention discloses an equipment fault intelligent early warning system based on abnormal voiceprint AI analysis of energy equipment, and relates to the technical field of equipment health management, the equipment fault intelligent early warning system comprises an equipment fault early warning platform, and the equipment fault early warning platform is in communication connection with the following modules: a data sensing fusion module, a voiceprint AI analysis module and a voiceprint AI analysis module; the data acquisition module is used for acquiring high-frequency voiceprint signals, temperature field distribution and vibration data in real time during operation of energy equipment through a distributed sensor network to form a comprehensive data set; and the voiceprint AI analysis module is used for extracting voiceprint features from the comprehensive data set, and identifying whether the equipment emits abnormal voiceprints or not by using a pre-trained voiceprint AI model. According to the method, early abnormity is identified through the high-precision AI model, sudden equipment faults are effectively prevented, equipment physical field interaction is simulated in combination with the digital twin technology, and a fault evolution path is dynamically deduced, so that operation and maintenance personnel can take intervention measures at the initial stage of the faults, the stability and reliability of equipment operation are remarkably improved, and the non-planned downtime is shortened.

The invention discloses a digital twinning-based thermal heat supply system defense cooperative protection method and system, particularly relates to the technical field of industrial control system safety, and is used for solving the problems of hidden attack missing detection and response delay caused by splitting of energy flow and data flow in an existing protection mechanism. Physical-network behavior collaborative verification is realized by constructing a digital twinborn model, and precise protection is realized by quantifying coupling failure characteristics of energy flow and instruction flow. The method specifically comprises the following steps: collecting production data, industrial control logs and network traffic; constructing a digital twin model to simulate expected behaviors of equipment, communication and physical states; comparing and detecting abnormal data in real time; extracting a thermodynamic potential gradient characteristic quantity and a path integral characteristic quantity from the abnormal data; calculating a covariant difference value of the two characteristic quantities, and judging an external attack when the covariant difference value exceeds a threshold value; when an attack is triggered, a micro-isolation gateway is deployed, dynamic access control is implemented based on an equipment fingerprint, a user behavior sequence and an environment fingerprint, and an attack chain is blocked.

The invention relates to the technical field of digital twinning, in particular to a digital twinning monitoring system for a precision servo press production line, which comprises a physical production line module, an edge calculation module, a cloud digital twinning module and a visual monitoring module, wherein the physical production line module is used for monitoring and collecting production line data in real time; the edge calculation module preprocesses and analyzes the collected original data, judges product defects, equipment faults and employee abnormal states in real time to trigger edge early warning, and outputs a multi-dimensional data set; the cloud digital twinborn module is used for constructing a digital twinborn body, establishing a real-time coupling simulation model fusing electromagnetism, heat, force and sound to simulate the internal physical process of equipment in real time, predicting the performance change and potential fault of the equipment, positioning the fault root cause and predicting the residual life; and the visual monitoring module is used for carrying out multi-dimensional visual presentation and providing decision support. Therefore, the problems of insufficient production line staff monitoring, single physical field monitoring, lack of fault predictability and the like are solved.

The invention discloses reservoir underground pore connectivity transformation simulation equipment, a reservoir underground pore connectivity transformation simulation system and an evaluation method. The equipment comprises a rock core transformation clamping device, a first magnet, a second magnet, a nuclear magnetic resonance signal controller, a storage and collection tank and a fluid displacement device, wherein a magnetic induction coil is arranged in the rock core transformation clamping device, and the first magnet and the second magnet are oppositely arranged on the two sides of the rock core transformation clamping device; the nuclear magnetic resonance signal controller is electrically connected with the first magnet, the second magnet and the magnetic induction coil respectively and is used for controlling the magnetic field intensity formed by the first magnet, the second magnet and the magnetic induction coil and measuring a nuclear magnetic signal of a rock core sample in the rock core transformation clamping device; the rock core modification clamping device comprises a fluid inlet, the fluid inlet is communicated with the storage and collection tank, and the fluid displacement device is connected with the storage and collection tank, so that fluid is displaced into the rock core modification clamping device under the action of the fluid displacement device, and modification and evaluation on the pore connectivity of the rock core sample under different fluid pressures are realized.

The invention discloses a new energy power equipment fault detection system based on digital twinning, and relates to the technical field of new energy power, and the system comprises an equipment management center which is in communication connection with the following modules: a digital modeling module which is used for constructing a three-dimensional digital model of new energy power equipment, multiple physical fields during equipment operation are fused, and a coupled digital twinborn model is constructed; and the data interaction mapping module is used for communicating the physical equipment and the coupling digital twin model. According to the method, the high-precision three-dimensional dynamic model is constructed, the multi-physics field is fused to establish the coupled digital twinborn model, the operation state of the equipment is mapped in real time, dynamic responses of the equipment under different working conditions can be simulated, the limitation that a traditional threshold value method is difficult to adapt to dynamic operation characteristics is overcome, and through multi-physics field coupling simulation, the dynamic performance of the equipment is improved. The internal physical change process of the equipment can be accurately captured, the fault positioning precision and the reliability of a detection result are remarkably improved, and false alarm and missing alarm are reduced.

The invention provides a test system for prototype verification of a PCIE Switch switch chip. The system comprises an FPGA assembly, RC simulation equipment, EP simulation equipment and monitoring analysis equipment. In the application, the FPGA component integrates the tested component PCIE Switch and the test auxiliary component, supports hardware-level reconfiguration, can simulate topology and abnormal scenes of any RC device or EP device on the same platform, and does not need to replace physical hardware. Compared with an existing test system which depends on serial port log output faults, the method has the advantages that the error state is captured through FPGA hard logic, nanosecond fault tracing is achieved, and the test efficiency can be effectively improved. Besides, RC simulation equipment defines a test program through software, dynamically generates flow (such as normal / abnormal messages), and can replace physical RC equipment; the EP simulation device can respond to the test flow in real time, and can support multi-protocol version compatibility verification. Automatic testing of prototype verification of the PCIE Switch chip can be achieved through the monitoring and analyzing device, manual intervention is not needed, and input of testing manpower can be reduced.

The invention relates to a scheduling operation ticket execution process monitoring method based on a digital twinning technology, and belongs to the field of power system detection. Comprising the following steps: acquiring a step sequence and logic association from an operation order, analyzing to generate a data set, and constructing a logic dependency graph and a digital twinborn instance; analyzing the matching degree of the step precondition and the real-time state, identifying a failure step and generating alarm information; querying an equipment interaction record, and extracting a dynamic change factor list causing state conflicts; analyzing in combination with a logic dependency graph to obtain influence weights of subsequent steps, and identifying high-risk steps; calling digital twin examples to simulate equipment state evolution, and evaluating potential chain reaction risks; adjusting an operation order step sequence according to the protection device triggering probability, and generating a scheduling instruction set meeting a real-time state; monitoring deviation in real time and generating a dynamic correction instruction; and verifying the correction instruction and generating an operation order scheme. The intelligent level and safety of scheduling operation order execution are improved, and power grid accidents caused by misoperation are effectively prevented.

A measurement and control simulation device based on a measurement and control data transmission integrated system comprises an upper computer display control test module, a PC host module, a signal processing master controller module, an isolation DC / DC module, a down-conversion module, a filtering module, an isolator module and an outer end face interface module. The system has the characteristics of multiple modulation systems, a spread spectrum function, controllable output power, Doppler frequency change and the like, can be used for simulating a star chain control system link test in a ground test system, and fully improves the index assessment performance during system docking; meanwhile, the design of a down-conversion link meets the requirements for the strength and sensitivity of the received signal, the stability and accuracy of the radio-frequency signal after frequency conversion in a low-power injection state are remarkably improved, and a new scheme is provided for a high-frequency conversion mode. Besides, the display control module of the equipment has the functions of multiplexing, reconstruction, multi-data interaction and the like, so that multifunctional and multi-task full-system test coverage can be realized, the cost investment of test systems such as spacecrafts and the like is greatly reduced, and the multifunctional index test coverage efficiency is improved.

The invention discloses a power supply test method for simulating an equipment load and electronic equipment, and relates to the technical field of electronics, and the method comprises the steps: transmitting test current information to a first control part through a management controller, the test current information being used for indicating a to-be-simulated specified load current of a first load module; according to the specified load current, the first control part controls the first load module to carry out current pumping on a power supply of the first load module; voltage data of the power supply of the first load module and current data of the power supply of the first load module are obtained through the first control part, and a first test result is obtained. The technical problem of insufficient accuracy and comprehensiveness of the power supply test method of the equipment load in the related technology is solved, and the technical effect of improving the accuracy and comprehensiveness of the power supply test method of the equipment load is achieved.

The invention discloses a coal mining equipment state sensing method based on large model and digital twinning, which relates to the technical field of state sensing, and comprises the following steps: inputting a multi-modal data set into a quantum convolution encoder, carrying out feature compression through a quantum state superposition principle, selecting key feature fragments by utilizing an attention gating mechanism, and carrying out feature compression on the key feature fragments; generating a multi-scale digital twin of the device; according to the multi-scale digital twins, a space-time diagram Transform network is used for establishing a dynamic correlation model between equipment parts, the interaction intensity between the parts is quantified through a diagram attention mechanism, the equipment state evolution process is described through a neural differential equation, and an equipment state evolution model is obtained; combining the equipment state evolution model with the generative adversarial network, and simulating an equipment degradation path through a generator; according to the method, key dynamic fragments are adaptively screened through an attention gating mechanism, the classic convolution serial bottleneck and fixed attention rule limitation are broken through, exponential-level dimension reduction is achieved, and a degeneration-related space-time mode is accurately captured.

A method comprising obtaining (611) video data comprising meta-data representative of a level of reliability of a neural network inference process implemented by an analog device, the neural network inference process being applied to decode the video data, an analog device being an electronic circuitry unable to ensure a repeatability of an output result of said electronic circuitry when said electronic circuitry receives same input data; and, decoding (612) the video data, the implementation of the neural network inference process by the analog device depending on the metadata.

The invention relates to a detection device and method for simulating excitation phase voltage of metal particles in GIS (Gas Insulated Switchgear) equipment, and the device comprises an element cavity, a vibration applying mechanism, a vibration detection mechanism and a voltage phase oscilloscope, the vibration detection mechanism measures a mechanical vibration signal of the element cavity and converts the mechanical vibration signal into an electric signal; and the voltage phase oscilloscope displays the voltage phase at the excitation moment of the metal particles. According to the device, the amplitude and action time of mechanical vibration are accurately controlled through the vibration applying mechanism, and the dynamic vibration environment of actual operation of GIS equipment is simulated; meanwhile, the vibration detection mechanism is combined with an external trigger mode of a voltage phase oscilloscope, millisecond-level synchronous capture of the moment of vibration excitation of metal particles and an alternating current voltage phase is achieved, excitation phase data of the metal particles can be accurately obtained, and the association rule of the initial charge quantity and the motion trail of the metal particles is deeply analyzed. And positioning of insulation weak points of the GIS equipment and optimization of a protection strategy are guided.

A networking device, system, and method of operating a networking device are provided. The illustrative networking device is disclosed to include one or more physical ports, an emulated switch positioned between the one or more physical ports and a host device, and one or more emulated devices positioned between the emulated switch and the one or more physical ports. The one or more emulated devices may be configured to populate the one or more physical ports.

The invention discloses a multi-node dynamic power line channel simulation system, which is applied to the technical field of power line communication and is used for solving the problem of limited authenticity and adaptability of power line channel simulation in the prior art. In the on-site power grid end channel characteristic acquisition system, a first power line channel characteristic acquisition device periodically sends an original excitation signal through an excitation signal sending module, and a second power line channel characteristic acquisition device receives the original excitation signal through an excitation signal receiving module. Collecting a current filter coefficient of the first filter when the original excitation signal is received each time, and transmitting the current filter coefficient to the communication simulation equipment; in the laboratory end communication simulation system, communication simulation equipment configures a current filter coefficient to a corresponding second filter for communication simulation, so that dynamic capture of channel characteristics changing along with changes of external factors such as air temperature and load is realized through periodic excitation signal transceiving and filter coefficient training acquisition; and the authenticity and adaptability of the power line channel during communication simulation are improved.

A computer device includes at least one processor in communication with at least one memory device. The at least one processor is programmed to: a) receive data for simulating a process on the device; b) determine a plurality of gradient variables; c) determine a plurality of fit coefficients for the plurality of gradient variables; d) perform fitting operations on the plurality of fit coefficients and the plurality of gradient variable to determine superpositions for the plurality of fit coefficients; e) transmit the superpositions for the plurality of fit coefficients to a controller of the device; f) retrieve operating parameters of the device; g) determine one or more attributes that are not directly measured; h) determine values for the one or more attributes based on the superpositions of the plurality of fit coefficients; and i) control the device to perform the process.

The invention discloses a simulation device for a small low-temperature reactor control rod position closed-loop control system, particularly relates to the technical field of low-temperature reactor control, and is characterized in that a combination valve simulation load is used for generating a high-voltage signal based on a received high-voltage direct-current signal of a control rod driving mechanism and performing voltage reduction processing on the high-voltage signal to obtain a high-voltage signal; a low-voltage signal is obtained; the analog quantity voltage acquisition module is used for receiving the low-voltage signal and analyzing and processing the low-voltage signal to obtain a control rod simulation action; the PXI controller is used for receiving a control rod simulation action to generate a rod position simulation value and calculating a binary code value of the rod position simulation value; the switching value signal output module is used for outputting a switching value signal based on the binary code value of the received rod position simulation value so as to control the rod position simulation module; and the rod position simulation module is used for generating and outputting a rod position simulation signal under the control of the switching value signal output module based on the received rod position excitation signal of the rod position measurement device.

The invention discloses a test device for testing the sound absorption performance of a resonant cavity of a combustion chamber of a gas turbine, which relates to the technical field of gas turbine devices and comprises a gas supply assembly, first simulation equipment, second simulation equipment, a monitoring assembly and a control mechanism, the gas supply assembly provides a mixed gas medium and can adjust component information of the mixed gas medium. The first simulation equipment excites an acoustic mode in the test piece; the second simulation equipment provides outlet boundary conditions for the test piece; the monitoring assembly is used for monitoring pressure information and gas component information of the test piece; the control mechanism is in communication connection with the monitoring assembly and can receive the pressure information and the gas component information; and the control mechanism is also in communication connection with the first simulation equipment and the gas supply assembly, and controls the actions of the first simulation equipment and the gas supply assembly. According to the test device for testing the sound absorption performance of the resonant cavity of the combustion chamber of the gas turbine, the sound absorption performance of the resonant cavity of the combustion chamber of the gas turbine can be conveniently tested, and the test risk and the test cost are reduced.

The invention provides a remote vehicle control test method and system, and belongs to the technical field of automobiles, and the method comprises the steps: obtaining a test case and a signal mapping file; generating a control instruction corresponding to a remote vehicle control test process based on the test case and a signal mapping file; the simulation equipment generates a test signal based on the control instruction and sends the test signal to the tested equipment; and feeding back a test result, and comparing the test result with a predicted result of the test case. A flexible and easy-to-use remote vehicle control test platform is constructed through stepwise module separation and configuration uploading by adopting a cloud deployment method, and test cases and signal mapping files can be automatically generated based on a generation tool, so that different vehicle types or hardware can be quickly replaced and adapted, and the test efficiency is improved. The overall reconstruction cost caused by equipment replacement is reduced, the manual writing workload can be omitted, and rapid iteration is supported to adapt to a new process.

The invention discloses a high-precision digital double-mixing phase discriminator, and belongs to the technical field of time transfer. Comprising a sampling amplification module, the output end of the sampling amplification module is connected with a signal processing module, and the output end of the signal processing module is connected with a result output module; the sampling and amplifying module is used for receiving two paths of input clock signals fCLKA and fCLKB, and sampling and amplifying the fCLKA and fCLKB by cascading two paths of multi-stage D triggers, so that the phase difference of the two paths of input clock signals is reserved and amplified, and the probability of metastable state occurrence is reduced; the signal processing module is used for carrying out jitter optimization processing on the two paths of sampled and amplified signals and extracting stable signal edges; and the result output module is used for measuring the amplified phase difference according to the two paths of signals subjected to jitter optimization, and obtaining the original phase difference through scaling down. Digital amplification is adopted, analog devices are not needed, noise introduction and delay uncertainty are avoided, and therefore the linearity and reliability of measurement are improved.

The invention provides a circuit regulation simulation device and method, and relates to the technical field of experimental equipment, current state information sent by a simulation slide rheostat is received through a controller, and the current state information comprises a current simulation working parameter resistance value; generating a display instruction based on the current state information, and sending the display instruction to a display, so that the display displays a virtual slide rheostat image corresponding to the simulated slide rheostat; wherein the virtual slide rheostat image comprises a virtual slide rheostat and a resistance value, so that interaction between the regulator and the experiment screen is realized.

The utility model provides an interface signal control terminal for simulating equipment failure, which relates to the technical field of video conference systems, and comprises a control terminal in communication connection with an interactive terminal, the control terminal comprises a main control module, a relay module and an interface module, the main control module is in communication connection with the interactive terminal, and the relay module is in communication connection with the interface module. The relay module is electrically connected with the main control module, and the interface module is electrically connected with the relay module; the main control module can receive a switching value signal sent by the interaction terminal and transmit the switching value signal to the relay module, so that the relay module controls the on-off of the interface module; according to the utility model, the interaction terminal cooperates with the control terminal having the master control module, the relay module and the interface module to control the on-off mode of the corresponding interface and simulate the real fault state and fault environment of the equipment, thereby cultivating the fault diagnosis and processing capability of workers, and enabling the workers to work normally when the equipment has an abnormal fault. And rapid processing can be realized.

The invention relates to the field of sensor data calibration, in particular to an intelligent sensor data calibration method for sensing the state of an electric reactor, which comprises the following steps of: mapping power supply voltage into three engineering states of stability, drifting and distortion based on the physical characteristics of an analog device, and introducing asymmetric hysteresis comparison logic to prevent the state oscillation of a critical point. In the stable state, the system executes baseline clamping and dead zone control to filter background noise; in a drift state, a look-up table is preset based on a real-time voltage index, and sensor gain attenuation is compensated by using a fixed-point displacement algorithm; and in a distorted state, starting a logic fusing mechanism to shield invalid signals. In addition, timing alignment of low-speed power data and high-speed partial discharge signals is realized through a zero-order holding strategy. The problems of signal distortion and false alarm caused by power supply voltage fluctuation are effectively solved, and the robustness and monitoring accuracy of the sensor in a complex electromagnetic environment are remarkably improved.

The invention discloses a method, a system and equipment for troubleshooting a communication terminal of an all-moving simulator, and belongs to the technical field of aviation simulation equipment fault diagnosis. The method comprises the following steps: acquiring data of a communication terminal operation state, an input / output system state and a central control console environment state, synchronizing time, and constructing a time sequence feature vector through denoising normalization processing; inputting a Kalman filtering state space model to calculate an observation residual error, and distinguishing a fault source and interference characteristics; identifying a fault type by using an integrated decision tree classification model, positioning a target fault point in combination with a fault tree and a Bayesian network, and matching historical cases to generate a troubleshooting scheme; after troubleshooting is completed, the fault case library is updated, and the model is optimized. According to the scheme, intelligent and standardized troubleshooting of faults is achieved, the problems that a traditional method is low in efficiency and poor in accuracy, and fault sources are difficult to distinguish are solved, the troubleshooting efficiency and accuracy are greatly improved, the operation and maintenance cost is reduced, and stable operation of the full-motion simulator is guaranteed.

The application discloses a kind of test methods for AIS guided SAR on-board real-time processing, by constructing the test environment consisting of control ground equipment, GPS simulator, AIS signal source, SAR echo simulation equipment, general control equipment and ground data receiving processing equipment, the equivalent simulation of in-orbit satellite state and the full-element detection target and scene is realized, the application of the test device effectively improves the test confidence for AIS guided SAR on-board real-time processing.

The invention discloses a radar communication simulation method and system for a self-adaptive deception strategy, and the method comprises the steps: receiving a simulation scene selected by a user, simulation equipment and an input frequency set, carrying out the scene configuration according to the input frequency set, and according to the corresponding behavior and signal characteristics of the scene configuration, carrying out the deception strategy simulation. Calculating a signal time sequence needing to be generated by the simulation equipment and generating a global time sequence; performing time sequence conflict detection and adjustment on the global time sequence to obtain a task time sequence after time sequence conflict calibration; and sequentially issuing the time sequence instruction of each simulation device to each simulation device according to the task time sequence for scene signal output. By automatically carrying out conflict detection and adjustment on the signal time sequence of each piece of simulation equipment in the simulation scene selected by the user, the working state of each piece of equipment in the real scene can be really simulated, and the purpose of deception investigation equipment is achieved.

The utility model discloses a laser conditioning gun which comprises a shell and a handle arranged on one side of the shell, and further comprises a laser emitter arranged in the shell, one end of the shell is provided with a laser emitting port, and the laser emitting port is provided with an adjusting assembly used for adjusting laser beams. A display screen and a plurality of operation buttons are arranged at the end, away from the laser emission port, of the shell, a main battery bin and a standby battery bin are arranged on the side, away from the shell, of the handle, and an emission button is arranged on the side, close to the shell, of the handle. According to the laser conditioning gun, the laser transmitter is used for transmitting laser signals with specific codes to the simulation equipment in the system, dead judgment and activity judgment control over the simulation equipment in the system is achieved, and meanwhile, due to the arrangement of the adjusting assembly, the simulation equipment controlled according to actual needs can conveniently adjust laser beams.

A quantum circuit simulation device according to the present disclosure includes a storage system including one or more storage devices, and a host system connected to the storage system and configured to simulate a quantum circuit, wherein the quantum circuit stored in the storage system may be partitioned into one or more sub-circuits, and the host system may sequentially simulate the one or more sub-circuits in a main memory.

The utility model provides an analog unit structure and an analog circuit device. The analog circuit device includes a bottom metal wiring layer including a plurality of tracks and an analog cell including an n-type metal oxide semiconductor (NMOS) active region and a p-type metal oxide semiconductor (PMOS) active region, a plurality of polysilicon layers, and a plurality of metal diffusion layers. In the simulation device, an NMOS (N-channel Metal Oxide Semiconductor) active region, a PMOS (P-channel Metal Oxide Semiconductor) active region, a plurality of polycrystalline silicon layers and a plurality of metal diffusion layers form a CMOS (Complementary Metal Oxide Semiconductor) structure. The apparatus also includes a plurality of guard ring cells surrounding the analog cell and a power rail structure configured to provide a connection between the bottom metal wiring layer and the analog cell.

A system configured for simulating communication loads over a network, the system having: a controller module; an application module, operationally coupled over the network to the controller module, wherein the system is configured to execute a load test over the network with the application module, by: transmitting mock telemetry messages, associated with mock devices, representing internet-of-things (IoT) devices, to the application module, wherein the mock telemetry messages are equivalent to production telemetry messages sent from the IoT devices; and issuing an alert when the system determines that a result of the load test is indicative of errors above a threshold associated with receipt of the mock telemetry messages by the application module.