106 results about "Analog device" patented technology

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.

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 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.

This application discloses a method for transporting semiconductor chips via an overhead crane, including: moving the entire crane to move a clamping unit to a position corresponding to a semiconductor chip carrier; the clamping unit extending horizontally into the placement position of a simulation device and clamping the semiconductor chip carrier; the clamping unit moving the semiconductor chip carrier out of the placement position; and the entire crane moving to transport the semiconductor chip carrier. The clamping unit extends horizontally into the placement position of the simulation device to clamp the semiconductor chip carrier, thus avoiding obstruction of the placement position from the top of the semiconductor chip carrier.

The utility model relates to a portable airplane front wheel bearing switch in-situ detection and simulation device, and belongs to the technical field of airborne equipment test and maintenance. Comprising a host, a laser ranging module and a test accessory, the host communicates with the laser ranging module and the test accessory, and the laser ranging module is fixed by a clamp and then tightly attached to an aircraft landing gear strut. According to the utility model, the response state of the load-bearing switch and the channel consistency can be realized, and the related functions of the airplane telex system can be tested.

The application discloses a coal mine equipment state perception method based on a large model and digital twinning, relates to the technical field of state perception, and comprises the following steps: inputting a multi-modal data set into a quantum convolutional encoder, compressing features through a quantum state superposition principle, simultaneously selecting key feature fragments by using an attention gate mechanism, and generating a multi-scale digital twin of the equipment; according to the multi-scale digital twin, a dynamic correlation model between equipment components is established by using a space-time graph Transformer network, the interaction strength between components is quantified by using a graph attention mechanism, and a neural differential equation is used to describe the equipment state evolution process to obtain an equipment state evolution model; the equipment state evolution model is combined with a generative adversarial network, and a generator is used to simulate the equipment degradation path; and the application adaptively filters key dynamic fragments through the attention gate mechanism, breaks through the classical convolution serial bottleneck and the limitation of the fixed attention rule, realizes exponential dimension reduction, and accurately captures the degradation-related space-time pattern.

This invention discloses a vehicle infotainment system testing method. By having a controller uniformly receive modal simulation parameters, generate precise multimodal interaction commands, and coordinate the synchronous actions of the multimodal interaction simulation device and the audio / video acquisition device, a fully automated closed-loop testing process is constructed. This application fundamentally eliminates the randomness and uncertainty caused by manual operation. Since the test input commands (such as voice content, touch coordinates, and timing) are precisely reproduced by the device according to preset parameters, and the entire execution, acquisition, and judgment process is automatically driven by the controller, it ensures that the test conditions, execution steps, and triggering logic remain consistent at any time and for any number of tests. This application's embodiments make performance test results (such as response latency) objectively comparable, providing a reliable and consistent technical foundation for accurately evaluating vehicle infotainment system performance and identifying performance regression between versions.

The present application relates to the technical field of waterproof detection of direct-buried pipes, in particular to a foam glass waterproof performance detection method for direct-buried pipes. The present application divides the camera range into multiple key camera blocks by arranging high-definition camera components and test simulation equipment on the test site. The waterproof performance test is carried out in the test simulation block. The test data of the simulation test are obtained by collecting the data of the test execution stage through the monitoring and control components and inputting into the fault early warning mechanism to obtain the fault early warning signal. In this way, the state of the test simulation equipment is monitored, which facilitates the accuracy of the data. The test simulation equipment is provided, which includes the waterproof performance detection simulation equipment installed. The waterproof performance detection simulation equipment includes a test simulation cabin, a simulation box positioning component, a pressure loading component and a monitoring and control component, which facilitates the operation of the test and effectively reduces the artificial dependence on the test environment adjustment.

The invention provides an oil shale electric heating in-situ conversion simulation device and method, the simulation device comprises a model container and a simulation oil shale rock mass placed in the model container, and the gap between the simulation oil shale rock mass and the model container is filled with epoxy resin; at least one simulated heating well and at least one simulated production well are longitudinally drilled in the simulated oil shale body, and temperature sensors and pressure sensors are distributed at multiple points around the simulated heating well; and the simulated production well is connected with a gas-liquid collecting device. The simulation method comprises the following steps: (1) applying confining pressure to a simulated oil shale body in the simulation device; (2) electrically heating the simulated oil shale body in the simulation device; and (3) carrying out sampling operation on the simulation device by adopting a gas-liquid collection device, and respectively and quantitatively calculating the produced oil-gas components and the output. According to the simulation device provided by the invention, the utilization efficiency of electric heating energy is improved, and an efficient, economical and feasible energy input speed can be formulated according to the utilization efficiency.

Disclosed is a radio frequency receiver with real-time dynamic gain control that uses a feed-forward structure to enable the short response times that are required by IFF systems. In the radio frequency receiver, a signal that is received by an antenna is split by a splitter, and during processing of one branch of the split by a receiver chain, the other branch is subjected concurrently to power detection, to thereby set the attenuation of a dynamic gain amplifier prior to the processed radio frequency signal arriving at the attenuator, thereby conditioning the radio frequency signal to match the dynamic range of a subsequent analog device, such as an ADC, protecting the ADC and optimizing performance thereof, while eliminating the time that would be required by a feedback-based dynamic gain control system.

A radio frequency control method, an electronic device and a computer readable storage medium are provided. The method comprises: selecting N learning resistances from a preset resistance range according to a preset sampling rule; selecting Y test voltages from a preset voltage range according to a preset sampling method; for each learning resistance, setting a resistance of a simulation device for simulating a target object as the learning resistance, taking each test voltage as an input voltage of an ablation device, respectively determining S output powers corresponding to each test voltage, and obtaining YXS data samples corresponding to the learning resistance; and fitting the YXS data samples corresponding to each learning resistance to obtain a target fitting curve corresponding to each learning resistance. The target fitting curve obtained by the method can be used to determine the input voltage, which can reduce the deviation of the output voltage and further reduce the deviation of the output power.

The application provides a voltage multiplexing selection circuit for an EEPROM port and an EEPROM system comprising the same. The circuit comprises a control line end voltage multiplexing module and a bit line end voltage multiplexing module. The control line end voltage multiplexing module comprises a first latch, a first latch signal input unit, a first output switch tube and a second output switch tube. The gates of the first and second output switch tubes are connected to the output end of the first latch, the drains of the first and second output switch tubes are used for receiving first and second input voltages respectively, and the sources of the first and second output switch tubes are connected to the control line ends of different storage units. The bit line end voltage multiplexing module comprises a second latch, a second latch signal input unit, a third output switch tube and a fourth output switch tube. The gates of the third and fourth output switch tubes are connected to the output end of the second latch, the drains of the third and fourth output switch tubes are used for receiving third and fourth input voltages respectively, and the sources of the third and fourth output switch tubes are connected to the bit line ends of different storage units. The application can solve the problems of complex structure and many analog devices of the EEPROM port voltage multiplexing selection circuit.

The invention provides a vital sign simulation device and an interference signal generation system, and the device comprises a controller which generates a control signal according to a vital sign simulation parameter; the displacement generation unit is connected with the controller and used for generating periodic displacement according to the control signal sent by the controller; wherein the vital sign simulation parameters comprise heartbeat parameters or / and breathing parameters; the problems that in the prior art, biological radar testing equipment is lack of standard testing equipment, and accuracy evaluation cannot be carried out on products in the quality inspection testing process are solved.

This disclosure relates to the field of chip technology, and in particular to a method, apparatus, medium, and product for automated verification of Type-C IP. The method is applied to a hardware verification device, which includes an MCU, a MUX circuit, multiple simulated USB external devices, and a Type-C IP core to be verified. The method includes: controlling the MUX circuit via the MCU to connect the Type-C IP core to a target simulated device among the multiple simulated USB external devices; configuring the operating mode of the Type-C IP core via the MCU and acquiring the status information generated by the Type-C IP core in response to the connection with the target simulated device; and obtaining the functional verification result of the Type-C IP core based on the status information. This disclosure achieves complete automation of the verification process by constructing a complete automated verification closed loop, significantly improving verification efficiency.

The application provides a method for measuring natural convection temperature field of overhead transmission line, comprising the following steps: 1) installing a plurality of detection devices along the outer periphery of the transmission line to form a measurement channel for measuring the natural convection temperature on the outer periphery of the transmission line; 2) acquiring a first temperature set of a plurality of positions of the transmission line and a second temperature set of a plurality of positions of the measurement channel by the detection device, and transmitting the first temperature set and the second temperature set to an analog device through a communication device; 3) the analog device simulates the temperature of a plurality of different positions of the transmission line in the circumferential direction based on the first temperature set and the second temperature set, so as to simulate the natural convection temperature distribution of the transmission line. The application provides a detection device which is entirely made of silicon carbide ceramics, and the silicon carbide ceramics has good insulation, so that the detection device can be directly installed on the surface of the transmission line.

A system and method for monitoring a device includes a temperature sensor, a processing unit, and an output unit. The temperature sensor acquires a temperature measurement during a heat-up phase of a component and provides a temperature measurement to the processing unit, which selects a simulated transient temperature distribution of the simulated component of the simulated device from a plurality of simulated transient temperature distributions of the simulated component of the simulated device. The selection comprises a comparison of the at least one temperature measurement with the plurality of simulated transient temperature distributions at an equivalent time point in the simulated heat-up to a time point at which the temperature measurement was acquired. When a hot spot is developing an output unit outputs an indication of a fault associated with the component.