52 results about "Virtual instrument" patented technology

The invention discloses a miniature virtual instrument information acquisition method, relates to the technical field of information acquisition, provides a multi-modal data acquisition and time alignment scheme for a resource-limited miniature virtual instrument environment, and comprises the following steps: 1, carrying out normalization processing on an image sequence, an audio sequence and a sensor value sequence, and extracting a reference event; 2, generating a global time reference and a multi-modal alignment parameter based on a distributed consistency algorithm and the initial correction amount; 3, performing interpolation correction on the abnormal data segments according to the alignment parameters, and remarkably improving the time sequence consistency; and step 4, dynamic monitoring and cyclic self-correction are carried out through a drift metric function, accurate synchronization of long-time operation is ensured, high precision and low resource occupation can be considered, and the method has significant robustness and adaptability, can be widely applied to industrial monitoring, intelligent terminals, the Internet of Things and the like, realizes deep fusion and reliable analysis of cross-modal data, and has good application prospects. And long-term time consistency can be maintained in multiple iterations.

The invention provides an event-based flight simulator simulation method and system, a terminal and a medium, and relates to the technical field of flight simulators, the method comprises the following steps: setting components of a flight simulator, and setting public attributes and equipment attributes; describing a simulation object file; configuring an initial scene; configuring a development environment; configuring and developing a visual plug-in; configuring a virtual instrument, and defining input and output of the virtual instrument; compiling a logic processing plug-in, and executing a logic processing process based on the logic processing plug-in; the logic processing plug-in is used for setting pointers and parameters so as to process events sent by the event processor and access attributes. The design level and development efficiency of the system are improved, the reusability of the system is enhanced, the stability of the system is improved, and the user experience is also improved.

The invention provides an aircraft refueling virtual-real combined practical training method and platform based on AR and scrapped equipment, and relates to the technical field of aircraft refueling training, and the method comprises the steps that a processing module loads digital twin scene data according to a training subject; the AR display module carries out space registration and superposition on the virtual airplane model, the virtual instrument interface and real scrapped refueling equipment; collecting operation action data of the trainee in real time; inputting the operation action data into the digital twin model, updating the state information of the virtual refueling operation, and sending the state information to an AR (Augmented Reality) display module; the AR display module displays the state information in an overlapping manner; when the butt joint operation is carried out, the relative position and posture of the physical joint and the physical refueling panel are monitored in real time, the correctness of the operation is judged, and the result is displayed through the AR display module; and the processing module records, analyzes and generates a quantitative evaluation report. The method can effectively solve the problems that pure virtual training lacks sense of reality, and pure physical training is high in cost and high in risk.

The invention provides an AI-driven automatic test system and intelligent optimization method based on VISA and SCPI. The method comprises the steps that a natural language test requirement input by a user is acquired, the requirement is analyzed, and a test script conforming to the SCPI specification is generated; issuing the test script to the test instrument cluster through the virtual instrument software architecture interface, executing the test script, and collecting test data in real time; performing multi-modal fusion analysis on the basis of the collected test data to detect anomalies in the test process, and dynamically adjusting test parameters or test scripts according to an anomaly diagnosis result; performing cooperative task scheduling optimization on a plurality of instruments in the test instrument cluster based on the adjustment result; according to the method, a large language model is combined with an SCPI command knowledge graph to realize automatic conversion from a natural language to a test script, and test parameters and multi-instrument scheduling are dynamically optimized in combination with reinforcement learning, and the test efficiency and precision are remarkably improved through real-time anomaly detection and root cause positioning.

The invention provides an edentulous jaw implantation operation teaching system and method based on a virtual reality technology, and the teaching system is a tooth implantation operation training system based on a VR technology, and comprises a personal model module, a virtual operating room module, a user interaction module, and an equipment display module. The personal model module is used for constructing a personalized anatomical model containing an edentulous jaw bone, a neural tube and a safety area by using CT data of a patient; the virtual operating room module builds a scene through Unity and builds a high-precision surgical instrument model through three-dimensional design software; the user interaction module is connected with the personal model module and the virtual operating room module, and integrates a collision detection algorithm in a Unity engine to realize virtual instrument interaction and feedback; the equipment display module obtains and displays operation parameters in real time through calculation and early warns risks; according to the invention, key operation parameters can be fed back in real time, students are assisted to deepen understanding of operation procedures, and practical skills and comprehensive ability are improved.

The invention provides a virtual surgical instrument posture control method and device, a medium and a program product. The method comprises the steps that a global coordinate system of a virtual scene where a virtual surgical instrument is located is constructed; acquiring local pose information of an operation end of the main control equipment, mapping the local pose information to the global coordinate system through a coordinate transformation relation, and constructing a corresponding end point pose; on the basis of the tail end point pose, inverse kinematics solution is executed, multiple control parameters of the virtual surgical instrument are determined, and the multiple control parameters comprise target angle parameters of all joint spaces of the virtual surgical instrument, the postures of joints, the elongation of the instrument and the postures of fixed points; according to the control parameters, the virtual surgical instrument is controlled to conduct real-time posture updating in the virtual scene, so that synchronous control over the movement state of the instrument is achieved. According to the method, the unified global coordinate system is constructed, and inverse solution calculation is executed on the basis of the unified global coordinate system, so that the stability of attitude calculation is improved, and real-time updating and accurate control of the attitude of the virtual instrument are realized.

The invention discloses a method for accurately testing and controlling tension in a rotating state, and belongs to the technical field of tension control. The method comprises the following steps: acquiring a tension value, a pulley inclination angle and a vibration acceleration of each strand of wire rod in a plurality of strands of wire rods; the virtual instrument architecture platform executes real-time operation; the virtual instrument architecture platform writes a frequency instruction into the frequency converter and sends a target position pulse sequence to the servo motor at the same time; the frequency converter adjusts the rotating speed of the winch driving motor according to the frequency instruction. The servo motor controls the linear speed of the traction roller according to the target position pulse sequence. The control precision is optimized through multi-mode sensing data fusion and a dynamic compensation mechanism, a dynamic weight distribution PID control strategy is combined, the weight coefficients of proportion, integral and differential items are adjusted in a self-adaptive mode according to the tension change rate, a feed-forward compensation mechanism is introduced, collaborative optimization control over the frequency converter and the servo motor is achieved, and the control precision is improved. And the tension control precision and the abnormal response efficiency under the complex working condition are obviously improved.

Embodiments for rendering an operative guidance overlay in association with a patient are disclosed. A method includes receiving image data indicating an anatomical structure of the patient and a structure of operative instruments; generating virtual models based on the image data; receiving sensor data associated with a user, the operative instruments, or the patient; dynamically generating guidance overlay data associated with the anatomical structure of the patient, or the operative instruments based on the virtual models and the sensor data; and rendering the operative guidance overlay in association with the patient based on the guidance overlay data using a wearable augmented reality interface device. The virtual models include a virtual anatomical model of the anatomical structure of the patient, or virtual instrument models associated with the operative instruments. The rendering comprises continuous alignment of the virtual anatomical model with the patient and the virtual instrument models with the operative instruments.

The application discloses a kind of instrument accurate reading method and device based on virtual instrument, and wherein method is as follows steps: S1, the image of instrument panel to be read is photographed;S2, pointer image is separated from the image of instrument panel obtained by photographing;S3, whether the corresponding virtual pointer information of the instrument panel has been pre-stored is judged, if yes, directly enter step S8, otherwise enter step S4;S4, obtain the virtual instrument image without pointer;S5, the position of the rotation center of pointer and the position of both ends of scale area are determined from the virtual instrument image, and a plurality of scale value positions are generated;S6, a plurality of virtual pointers are generated in the virtual instrument image;S7, the RGB histogram of each virtual pointer is obtained, and stored as the corresponding virtual pointer information of the instrument panel;S8, the RGB histogram of each pointer in the pointer image obtained in step S2 is obtained;S9, the virtual pointer with the greatest similarity is found, and the scale value corresponding to the virtual pointer is the reading result of the pointer.

This application provides a portable oil and gas well fluid level monitoring system and method, relating to the field of underground wellbore fluid level monitoring technology. The system includes: a virtual instrument platform configured with a LabVIEW-based program for casing pressure signal acquisition and control, a sound-generating device control program, and a sound wave signal acquisition program; a portable acquisition instrument including: a USB data acquisition card, a pressure transmitter, a sound-generating module, and a microphone; the pressure transmitter acquires pressure information at the inlet of a normally closed solenoid valve within the sound-generating module; when the pressure information reaches a preset pressure, a pressure ready signal is generated; when the pressure ready signal is valid, the sound-generating module is controlled to generate infrasound; and the infrasound reflection signal received by the microphone is acquired, processed by a MATLAB-based signal processing program, and displayed in the user interface of the sound wave signal acquisition program. The implementation method provided in this application is beneficial for improving the efficiency and safety of oil well production.

The invention discloses an aircraft control surface automatic detection method and system based on virtual instrument and matrix switching, and relates to the technical field of steering engine detection. The aircraft control surface automatic detection method and system based on virtual instrument and matrix switching comprises the following steps: S1, obtaining control surface actuator response data, and preprocessing the control surface actuator response data; s2, a relay is driven to realize channel switching, the stability degree of the relay before and after switching is evaluated, and a stable sampling period is screened; s3, identifying an effective response starting point and a response ending point of each channel, calculating each component index in a response section, and constructing a response feature vector of the control surface actuator; and S4, evaluating the deviation degree between the current response behavior and the ideal state, identifying an abnormal response state, generating a channel-level response behavior tag, and summarizing to form a classification result. The problem that the initial section of a displacement response curve is misjudged due to the fact that transient kick caused by relay switching is not isolated by a time window is solved.

The invention relates to the technical field of virtual simulation teaching, in particular to a simulation teaching system and equipment in a virtual environment, which can construct scene three-dimensional models corresponding to a plurality of real scenes, virtual instrument models and use rules, and instruments are used for GNSS control network project production or real-time dynamic measurement. In a field mode, loading the scene three-dimensional model on a display picture to form a virtual environment, and loading a virtual character; and controlling the virtual character to use the virtual instrument model in the virtual environment according to the user operation instruction to complete corresponding instrument operation or production tasks according to the technical requirements of real field production, and scoring the operation executed by the virtual character. According to the invention, the corresponding virtual scene and instrument are constructed by imitating a real scene and a real instrument, so that students can learn the operation and use method of the real instrument and corresponding field production skills in the virtual scene, the scene can be randomly switched, the teaching effect is good, and the method is not limited by the cost, the environment and other real conditions.

The invention discloses a testing device for electrical equipment based on a virtual instrument, and relates to the technical field of electrical equipment tests.The testing device for the electrical equipment based on the virtual instrument comprises a testboard, and a bottom cover box with an access cover plate is fixed to the bottom of the testboard; a pin tester and an insulation tester are respectively fixed on the test bench through a support, and an operation panel based on virtual instrument software control is arranged on one side of the bottom cover box; and the two sides of the test board are both provided with material distribution assemblies used for feeding round and square resistors in the electrical equipment, the other two sides of the test board are both provided with switching assemblies, and the side, close to the operation panel, of the test board is provided with an overturning assembly used for overturning the round and square resistors. According to the invention, on the premise of synchronization of circular and square resistors and switching of cloth, the effects of automatic jacking pin detection and automatic turn-over insulation performance detection of resistors in different shapes are realized.

The present invention relates to a virtual instrument-based automatic tuning system and method for a digital-to-analog converter. The tuning system includes a power supply, a pattern generator, a multimeter, a DAC evaluation board to be tuned, and a host computer. The DAC evaluation board to be tuned includes a DAC chip to be tuned, a crystal oscillator, a clock source chip, a reference source circuit, and a relay. The tuning method controls the pattern generator via the host computer to generate the data code required to tune the DAC chip. Under the control of the host computer, the voltage output by the DAC chip is collected. A tuning code is calculated based on the collected output voltage. The tuning code is fed back to a tuning register corresponding to the DAC via the pattern generator, thereby achieving tuning. The tuning effect is determined by calculating the normalized mean square error of the applied tuning voltage until the tuning requirements are met. The present invention can effectively improve the accuracy and linearity of the digital-to-analog converter.

The invention provides a dynamic energy consumption statistical method based on labels, and relates to the field of industrial internet, internet of things and energy management systems. According to the method, dynamic binding of a physical instrument and label values under multi-label classification is achieved by constructing a hierarchical label system of two or more stages, and a virtual instrument associated target label can be created when no physical instrument exists; a virtual instrument calculation framework is configured, an interface setting energy consumption calculation formula is supported, and rules can be dynamically updated through RESTAPI; a hierarchical perception aggregation algorithm is adopted, and cross-hierarchical and multi-instrument energy consumption summarization is automatically completed. The method solves the problems of statistical dimension solidification, insufficient calculation flexibility and high expansion cost in the prior art, has the characteristics of flexible configuration, strong expansibility and cost optimization, and can accurately adapt to diversified and refined energy consumption statistical requirements of factories, parks, buildings and other scenes.

A user interface for a musical instrument, particularly an electronic or virtual instrument, is proposed. The instrument is used to play combinations of chord and melody sequences. The user interface has a key array 1 with multiple operable, row-and-column arranged areas 111, 121, ...; 112, 122, ...; 11 n 12 n ..., each row has operable regions 111, 121, ...; 112, 122, ...; 11 n 12 n ...forming a block 101, 102, ..., each block 101, 102, ... is equipped with a basic chord, preferably a scale, preferably a whole-tone scale-specific chord; each section 111, 121, ...; 112, 122, ...; 11 n 12 n ...equipped with a melodic tone, preferably a scale melody tone, the user interface is configured for use in the manipulation blocks 101, 102, ..., areas 111, 121, ...; 112, 122, ...; 11... n 12 n ..., corresponding to the manipulated regions 111, 121, ...; 112, 122, ...; 11 n 12 n ... and blocks 101, 102, ... generate pitch generation instructions, which include at least one basic chord note instruction with pitch and a melody note instruction, the pitch of which is contained in the basic chord assigned to the manipulated blocks 101, 102, ..., and the pitch of the melody note instruction corresponds to the manipulated blocks 111, 121, ...; 112, 122, ...; 11 n 12 n The melodic tones of... are also proposed. Furthermore, an instrument, a method for generating combined chord and melody sequences, and a computer-readable storage medium are also proposed.

The invention provides an instrument control panel that is easily customized and reconfigured, and yet provides the familiar tactile sensation of physical knobs, sliders, and buttons. The instrument control panel comprises one or more interface components that are removably coupled to an interface display wherein the interface components communicate with one or more control components disposed behind the interface display. The present invention lends itself particularly well to an instrument panel.

The utility model discloses a flow computer calibrating device. Comprising a mainboard which is respectively connected with a display screen module, a virtual instrument output module and a timing switch output module and is used for detecting detection data aiming at a flow computer; the display screen module communicates with the mainboard through an interface and is used for displaying a detection result of the mainboard; the timing switch output module is respectively connected with the standard timer and a switch signal acquisition channel in the flow computer, and is used for sending a timing starting signal and / or a timing stopping signal to the standard timer and the switch signal acquisition channel; and the virtual instrument output module is connected with other signal acquisition channels except the switching signal acquisition channel in the flow computer, and is used for sending instrument output constant value input signals to other signal acquisition channels so as to verify the flow computer and improve the measurement precision of the flow computer.

The invention belongs to the technical field of automobile practical training, and discloses a network connection automobile maintenance simulation practical training method and system based on a virtual scene, and the method comprises the steps: constructing the virtual scene, optimizing the interaction between the virtual scene and a preset virtual vehicle, and generating an optimized virtual scene; inputting preset fault data into the optimized virtual scene, and creating a dynamic fault state of a preset virtual vehicle; performing real-time interaction with the optimized virtual scene through a preset virtual instrument, overhauling the dynamic fault state of the preset virtual vehicle, and converting the dynamic fault state into a fault data stream and a signal parameter; performing fault analysis and diagnosis reasoning on the fault data flow and the signal parameters by using the data processing model to obtain a diagnosis conclusion; and based on the diagnosis conclusion, selecting and executing corresponding maintenance operation in the optimized virtual scene through a preset virtual instrument, and generating a maintenance evaluation report. According to the invention, a highly realistic dynamic fault state is provided, and abundant and diversified fault diagnosis practice scenes are provided.

The application provides a virtual instrument construction method, a virtual metering data generation method and device, and belongs to the technical field of industrial control digitization. The construction method comprises the following steps: constructing an energy metering topological structure based on a target energy process flow; in the energy metering topological structure, determining at least one metering node without a configured entity instrument as a virtual instrument metering node based on an entity instrument metering node to which an entity instrument has been configured; and configuring a calculation model for the virtual instrument metering node based on the topological relationship between the virtual instrument metering node and the entity instrument metering node, wherein the calculation model is used to generate virtual metering data of the virtual instrument metering node based on metering data of the entity instrument metering node. The application effectively fills the data blind spot of the entity instrument in the energy metering network by creating a virtual instrument, solves the problem of incomplete metering caused by the absence of the entity instrument, and realizes comprehensive and seamless monitoring of the energy consumption of the whole plant at a low cost.

The present application discloses a method, an apparatus, and a computer-readable storage medium for generating accompaniment music, belonging to the field of computer technology. The method includes: determining a target beat count of an initial music, where the target beat count is the number of beats per minute of the initial music; determining a target virtual instrument corresponding to the beat count range in which the target beat count is located among virtual instruments corresponding to at least two beat count ranges; during the playback of the initial music, receiving at least two trigger instructions for the target virtual instrument; and combining the sounds of the target virtual instrument indicated by each of the at least two trigger instructions according to the reception times of the at least two trigger instructions to obtain the accompaniment music. The present application solves the problem that the functions of computer software related to music creation are relatively single. The present application is used for generating accompaniment music.

The present invention relates to the field of virtual surgery technology, and discloses a virtual instrument setting method and an instrument simulation system. The method comprises: receiving posture information sent by a target sensor, the target sensor being set on an instrument to be calibrated; the posture information being generated by the instrument to be calibrated in a specified motion state; determining the type of the instrument to be calibrated based on the posture information; and setting a virtual surgical instrument at a target position within a virtual surgical system based on the type of the instrument to be calibrated. The present invention can automatically identify the type of the instrument to be calibrated and can automatically set the virtual surgical instrument at a target position within the virtual surgical system to achieve initial posture positioning of the instrument to be calibrated and the virtual surgical instrument, thereby ensuring that the virtual surgical system can accurately track the instrument to be calibrated during subsequent simulated operations.

The invention relates to the field of current measurement, in particular to a portable electric energy quality detection system based on a virtual instrument and a measurement method. The signal conversion and conditioning unit is connected with a tested single-phase alternating current, converts high voltage and high current into low voltage signals, and carries out conditioning output through a sampling resistor. The digital-to-analog conversion unit receives the conditioned low-voltage signal, performs analog-to-digital conversion, and transmits a digital signal through a corresponding output interface; and the calculation system unit is connected with the digital-to-analog conversion unit to realize electric energy quality parameter calculation, data storage and alarm. According to the invention, the precision and real-time performance of electric energy quality monitoring are obviously improved, the portability is enhanced through modular design and low-power battery driving, and the manufacturing and maintenance cost is reduced; the functions of parameter analysis, threshold judgment and exception protection are realized, and the intelligent level and the data integrity are improved; the method is suitable for high-requirement scenes such as on-site detection, ensures safe and stable operation of a power grid and reduces economic loss.

The application discloses a kind of aircraft rudder surface automatic detection method and system based on virtual instrument and matrix switching, it is related to rudder detection technical field.The aircraft rudder surface automatic detection method and system based on virtual instrument and matrix switching, comprising the following steps: S1, obtain rudder surface actuator response data, and pretreat rudder surface actuator response data;S2, drive relay to realize channel switching, and evaluate the stability degree before and after relay switching, screen stable sampling period;S3, identify the effective response starting point and response end point of each channel, calculate each component index in response section, and construct rudder surface actuator response characteristic vector;S4, evaluate the deviation degree between current response behavior and ideal state, identify abnormal response state, generate channel level response behavior label and form classification result by summarizing.Solve the problem that transient jump caused by relay switching is not isolated by time window, leading to displacement response curve initial section misjudgment.

Embodiments for rendering an operative guidance overlay in association with a patient are disclosed. A method includes receiving image data indicating an anatomical structure of the patient and a structure of operative instruments; generating virtual models based on the image data; receiving sensor data associated with a user, the operative instruments, or the patient; dynamically generating guidance overlay data associated with the anatomical structure of the patient, or the operative instruments based on the virtual models and the sensor data; and rendering the operative guidance overlay in association with the patient based on the guidance overlay data using a wearable augmented reality interface device. The virtual models include a virtual anatomical model of the anatomical structure of the patient, or virtual instrument models associated with the operative instruments. The rendering comprises continuous alignment of the virtual anatomical model with the patient and the virtual instrument models with the operative instruments.

The invention provides an instrument control panel that is easily customized and reconfigured, and yet provides the familiar tactile sensation of physical knobs, sliders, and buttons. The instrument control panel comprises one or more interface components that are removably coupled to an interface display wherein the interface components communicate with one or more control components disposed behind the interface display. The present invention lends itself particularly well to an instrument panel.

The application belongs to the technical field of teaching model construction, and discloses a chemical experiment learning interaction method, system and application based on augmented reality technology. Environmental image information is collected, a plane is detected, a space coordinate system is established, and instrument model and position information are detected. Data information of the current model is collected and extracted in real time, and is compared with model data information in a database. Once successful matching is achieved, a corresponding virtual instrument model is generated. After the next instrument model is built and a new virtual instrument model is generated, a preset combination mode of the existing virtual instrument model is matched, and the system automatically combines all existing virtual instrument models. Subsequent interaction content and virtual content are matched according to the model combination mode. Users are required to explore and build the recognition object by themselves, to help the users to deeply explore the structure of the chemical experiment instrument, to deepen the user's impression of the related knowledge, and to improve the learning effect.

This application provides a virtual surgical instrument posture control method, device, medium, and program product, including: constructing a global coordinate system for the virtual scene where the virtual surgical instrument is located; acquiring the local pose information of the operating end of the main control device and mapping it to the global coordinate system through coordinate transformation to construct the corresponding end-point pose; based on the end-point pose, performing inverse kinematics solution to determine multiple control parameters of the virtual surgical instrument, including: target angle parameters of each joint space of the virtual surgical instrument, joint pose, instrument elongation, and fixed point pose; and controlling the virtual surgical instrument to perform real-time posture updates in the virtual scene according to the control parameters, so as to achieve synchronous control of the instrument's motion state. This invention improves the stability of posture calculation by constructing a unified global coordinate system and performing inverse kinematics calculation on it, achieving real-time updating and precise control of the virtual instrument's posture.

The present invention discloses a remote test system for interface circuits based on virtual instrument technology, which relates to the technical field of interface circuit testing and improves the detection accuracy of hardware interface circuit anomalies. The present invention obtains the normal fluctuation amplitude coefficient range of the interface transmission signal between the same pair of hardware under the test events of the same device, extracts abnormal signal segments from the interface transmission signal according to the normal fluctuation amplitude coefficient range, and at the same time sets abnormal label elements for the operation parameter data according to the standard range interval, thereby establishing a characteristic relationship matrix between the parameter anomaly matrix and the abnormal signal segments, obtaining the test operation parameter data and the test interface transmission signal executed by the device to be detected, comparing them with the corresponding standard range interval and the normal fluctuation amplitude coefficient range, and matching the characteristic relationship matrix according to the comparison result, thereby determining whether there are anomalies in the component elements or data transmission protocols of the device to be detected.

The application discloses a multi-source heterogeneous load data cleaning method, device, equipment and medium, relates to the technical field of urban lifeline, and carries out multi-level verification on multi-source heterogeneous load data; if the verification is passed, determines the daily load data of non-IoT users, the full-caliber total load of civil communities, compensates the heating gap load data, obtains the heating load data, strips the non-heating load data, and generates full-caliber statistical data; based on the flow change rate between current flow data and adjacent flow data, the heterogeneous load data is processed; a virtual instrument sequence is generated based on target flow data; the daily load value is determined by using the virtual instrument sequence, if the daily load value is less than a threshold value, all daily load values of the same user are superimposed and floating point elimination is performed, a total daily load value is obtained, the full-caliber statistical data and the total daily load value are stored, full-quantity customer coverage and closed-loop management are realized, and the physical law self-consistency and logical accuracy of data cleaning are improved.