9 results about "Virtual instrumentation" patented technology

The invention discloses a water plant mutual inductor test platform system based on an intelligent measurement and control technology and a measurement and control method, and belongs to the field of electric power testing. The invention discloses a water plant mutual inductor test platform system based on an intelligent measurement and control technology and a measurement and control method. The water plant mutual inductor test platform system comprises a data measurement system, a data acquisition system and a control subsystem. The problems that an existing testing method has high cost requirements and tedious steps are solved, multiple testing functions are integrated through the virtual instrument technology and the soft measurement technology, the excitation characteristic testing method and the mutual inductor grading measurement method, the detection efficiency can be improved, the detection cost is reduced, and meanwhile the testing efficiency is improved. And a plurality of functions of data acquisition, data analysis, data judgment, data storage, data curve display, measurement historical record query and the like are also provided, so that the automation and intelligence degrees of the current transformer test platform are improved.

The invention discloses a virtual instrument board card system based on a USB bus, relates to the technical field of virtual instruments, and controls each unit board card to execute signal output through a virtual instrument interface; signal data acquisition is carried out based on signal output executed by each unit board card, and the acquired signal data are transmitted through a USB bus; receiving the signal data, and analyzing the signal data in real time; based on real-time analysis of the signal data, a computer image interface is used for displaying a test result; virtual instrument adjusting parameters of a user are obtained through a graphical interface, then the virtual instrument adjusting parameters are transmitted through a USB bus, and hardware behaviors are adjusted according to the received virtual instrument adjusting parameters; and monitoring the virtual instrument test process in real time, and judging whether alarm information needs to be provided for a user by using the virtual instrument interface or not according to a real-time monitoring result. Real-time monitoring and convenient adjustment of the test process are realized, and the test precision and the user experience are remarkably improved.

A virtual measuring instrument adopting NFC data interaction and energy collection comprises a sensing detection processing module, an intelligent terminal and a connecting mechanism, the sensing detection processing module comprises a module NFC antenna, an NFC processing unit and a sensing detection unit, a measurement and control signal of the sensing detection unit is in data interaction with a wired interface of the NFC processing unit, and the intelligent terminal is connected with the sensing detection unit. A power supply of the sensing detection unit is provided by electromagnetic field energy collected by the module NFC antenna, the module NFC antenna and the terminal NFC antenna form a mutual coupling inductor through a coupling mechanism, and the intelligent terminal realizes electric energy transmission and wireless data interaction with the sensing detection processing module through electromagnetic induction coupling between the NFC antennas. According to the virtual instrument provided by the invention, electric energy transmission and data interaction between the intelligent terminal and the sensing detection processing module do not need direct contact electric connection, so that connection abrasion is avoided, and the reliability and the use convenience of a virtual measuring instrument hardware platform are improved.

The application discloses a kind of unified automatic discovery and configuration-free one-key connection method of multi-interface test instrument based on Linux Qt and LXI library, and it relates to test instrument communication and virtual instrument technical field.The asynchronous double passage parallel scanning mechanism is passed through, LAN LXI network instrument and local USBTMC USB instrument are discovered simultaneously;With equipment model + serial number + interface type, equipment deduplication integration is realized by generating unique fingerprint;Sequence number-IP dynamic mapping cache is established to adapt DHCP dynamic IP change;Configuration-free connection is realized by using default port priority + general port automatic detection strategy;Through multi-protocol unified communication abstract layer, LXI Socket, VXI-11, USBTMC protocol is compatible, and Linux platform USBTMC permission configuration and device node solidification are automatically completed.The application realizes unified discovery of multi-interface test instrument, dynamic IP self-adaption, zero-configuration one-key stable connection, solves interface fragmentation, configuration is complicated, Linux adaptation is poor, scanning is lagging, etc.Problems, strong universality, high stability, applicable to various LXI standard test instrument automation measurement and control scene.

Systems and methods for interfacing a laser system with a detector can include a computer system receiving reference data points representing samples of a first signal generated by the detector responsive to a first light signal emitted by the laser system, and receiving sample data points representing samples of a second signal generated by the detector responsive to a second light signal emitted by the laser system. The first light signal interact with a reference medium before reaching the detector and the second light signal interacts with a sample medium before reaching the detector. The computer system can generate a ratio signal using the reference data points and the sample data points, apply wavelet-based filtering to the ratio signal, and cause the filtered ratio signal to be displayed on a display device.

The invention provides a LabVIEW-based permanent magnet synchronous motor digital twinning system, which belongs to the technical field of motors and comprises a digital twinning visual platform and a local permanent magnet synchronous motor database. The digital twinborn visualization platform is constructed based on a LabVIEW virtual instrument platform, two-dimensional data visualization and three-dimensional data visualization are completed, and an external analysis platform can be called for data analysis; the local permanent magnet synchronous motor database is used for storing motor operation data, fault diagnosis data, life diagnosis data and full life cycle management analysis data; the digital twin visualization platform and a local permanent magnet synchronous motor database realize data interaction through an Ethernet TCP / IP protocol, and acquisition, processing, multi-dimensional visualization presentation and cross-platform data analysis of permanent magnet synchronous motor operation data are realized; the problems that the permanent magnet synchronous motor is large in data size, fast in updating, difficult in multi-dimensional analysis and the like are solved.

The invention provides a mining cable bending tester monitoring system and method based on a virtual instrument technology, and relates to the technical field of mining equipment testing and monitoring. The system comprises a mining cable bending tester used for carrying out a bending fatigue test on a mining cable, a data acquisition module used for acquiring cable bending parameters in real time through a cable bending multi-parameter sensor array, and a fault diagnosis module used for carrying out feature extraction and fault diagnosis on the cable bending parameters, the online monitoring module and the auxiliary management module are used for simultaneously judging whether the cable bending parameter exceeds the limit and generating an alarm instruction by combining an over-limit judgment result and a fault diagnosis result; wherein the data acquisition module, the online monitoring module and the auxiliary management module are jointly integrated into a virtual instrument platform, and the modules in the platform communicate with one another. The system is suitable for real-time acquisition, processing, visualization and alarm of multiple physical quantities in the test process, and multi-dimensional monitoring and intelligent diagnosis of the whole cable bending test process are achieved.

This utility model discloses a multifunctional electronic experimental platform, belonging to the field of electronic circuit testing and measurement technology. It includes a host computer, which houses a control motherboard, an input power module, and an output power module. The control motherboard includes a logic level input module and a logic level status display module, a BCD decoder digital tube, a TYPE-C power input interface, a TYPE-C emulator interface, and a TYPE-C virtual instrument interface. The control motherboard also includes a waveform generator channel, a spectrum analyzer channel, a network analyzer channel, a virtual oscilloscope channel, a programmable power supply channel, a logic analyzer channel, a protocol analyzer channel, and a voltmeter / voltage recorder channel. This utility model creates a multifunctional, portable, and highly flexible electronic experimental platform. It can provide innovative experimental courses for online teaching at a reasonable price.

Described herein is a system (100) for remotely accessing real and / or virtual instruments. The system (100) includes a user terminal (107) for virtually connecting with one or more real (102) or virtual instruments (105). The user terminal (107) includes: a user input device (109) configured to receive user input data; a display device (111) configured to receive display data and, in response, project images visible to the user on a display (110) of the display device (111); and an internet enabled computer (113) in communication with the display device (111) and user input device (109). The internet enabled computer (113) configured for communicating with an instrument server (117) to send the user input data and receive the display data. The instrument server (117) is configured to host software associated with a plurality of real (102) and virtual instruments (105). The software includes: virtual instrument software configured to virtually represent one or more virtual instruments (105); remote instrument access software configured to allow the user to remotely access real instruments (102) through one or more sensors and / or actuators embedded within or mounted to the instrument. The instrument server is further configured to: remotely control the real and / or virtual instruments based on the user input data; in response to the user input data, generate instrument data indicative of a current state of the real and / or virtual instruments (102, 105) as modified by the user input data; generate display data associated with the instrument data; and send the display data to the internet enabled computer (113) to allow the user to view data indicative of the real and / or virtual instruments (102, 105) in real-time thereby to simulate the user using one or both of the real and virtual instruments in real-time.