Applied Research of Frequency Discriminator Based on LabVIEW

2014 ◽  
Vol 910 ◽  
pp. 323-326
Author(s):  
Shu Lai Liang ◽  
Zhao Peng Li ◽  
Zhou Guo Hou
Keyword(s):  
Virtual Instrument ◽  
High Frequency ◽  
Applied Research ◽  
Simulation Experiment ◽  
Virtual Machines ◽  
Virtual Experiment ◽  
Development Platform ◽  
Frequency Discriminator

This article through introduction tradition high frequency laboratory existence shortcoming and malpractice , Proposed the idea of Virtual instrument made for high-frequency laboratory ,then introduced the characteristic of LabVIEW (a development platform for virtual experiment),And proved the feasibility of using virtual machines have the discriminator through the simulation experiment .

A Defense Mechanism Based on Improved Allocation Strategy of VMs Co-Resident Attack in Power Cloud Platform

2020 ◽  
Vol 13 ◽  
Author(s):  
Yuancheng Li ◽  
Pan Zhang ◽  
Daoxing Li ◽  
Jing Zeng
Keyword(s):  
Virtual Machine ◽  
Simulation Experiment ◽  
Virtual Machines ◽  
Defense Mechanism ◽  
Security Threats ◽  
Allocation Strategy ◽  
Cloud Platform ◽  
Deployment Strategy ◽  
Dbscan Algorithm ◽  
Maximum Minimum

Background: Cloud platform is widely used in electric power field. Virtual machine co-resident attack is one of the major security threats to the existing power cloud platform. Objective: This paper proposes a mechanism to defend virtual machine co-resident attack on power cloud platform. Method: Our defense mechanism uses the DBSCAN algorithm to classify and output the classification results through the random forest and uses improved virtual machine deployment strategy which combines the advantages of random round robin strategy and maximum/minimum resource strategy to deploy virtual machines. Results: we made a simulation experiment on power cloud platform of State Grid and verified the effectiveness of proposed defense deployment strategy. Conclusion: After the virtual machine deployment strategy is improved, the coverage of the virtual machine is remarkably reduced which proves that our defense mechanism achieves some effect of defending the virtual machine from virtual machine co-resident attack.

The Design of Virtual Experiment Framework Based on ELVIS

2014 ◽  
Vol 1037 ◽  
pp. 161-164
Author(s):  
Dong Dong Li
Keyword(s):  
Simulation Experiment ◽  
Teaching Method ◽  
Standard Test ◽  
Virtual Experiment ◽  
Traditional Teaching ◽  
Virtual Instrumentation ◽  
Virtual Experiments ◽  
Function Modules ◽  
Innovation Ability ◽  
The Cost

The virtual simulation experiment framework consists of hardware and software function modules, which are both designed in this thesis. The application of virtual experiment framework has changed the traditional teaching method to a large extent, reduced the cost of laboratory construction and management, which is of the first importance to realize the remote experiment teaching. Through virtual experiments, students' interest in knowledge is cultivated and innovation ability is enhanced. With the National Instruments Educational Laboratory Virtual Instrumentation Suite (NI ELVIS) and LabVIEW, we could take advantage of graphical programming and a complete suite of standard test instruments on computer and directly interface these instruments to circuits, which is the base of virtual experiment framework.

scholarly journals Innovation Education Research Based on Cross-object Interactive Robot Simulation Platform

2021 ◽  
Vol 123 ◽  
pp. 01020
Author(s):  
Lei Cheng ◽  
Shichao Guo ◽  
Jin Wu
Keyword(s):  
Simulation Experiment ◽  
Industrial Robot ◽  
Virtual Simulation ◽  
Virtual Experiment ◽  
Simulation Platform ◽  
Robot Simulation ◽  
Teaching Resources ◽  
Teaching Platform ◽  
Simulation Education ◽  
Experimental Project

China’s robot virtual experiment simulation education experiment teaching service platform was successfully constructed, it is an important pioneer and demonstrator of virtual experiment teaching. It is combined with the superior subject resources of the Robot Engineering major of Wuhan University of Science and Technology. This paper explains the necessity of cross-object interactive robot simulation experiment teaching. The experimental project of the industrial robot simulation module is combined with the teaching of related courses, the teaching system of the cross-object interactive robot virtual simulation experiment teaching platform is analysed. It is proposed that the virtual simulation platform can play a good role in innovating teaching resources in universities and cultivating innovative and entrepreneurial talents in universities.

Building Elastic Java Application Services Seamlessly in the Cloud

2016 ◽  
pp. 709-732
Author(s):  
Rostyslav Zabolotnyi ◽  
Philipp Leitner ◽  
Schahram Dustdar
Keyword(s):  
Software Development ◽  
Virtual Machines ◽  
Application Development ◽  
Platform As A Service ◽  
Development Platform ◽  
Java Application ◽  
Development Tools ◽  
Application Architecture ◽  
Main Ideas ◽  
Lock In

Cloud computing is gaining increasing attention from the industry and research; however, there is a lack of advanced Cloud software development tools. While Platform as a Service (PaaS) brings convenient software development platform for application development, it often comes with limitations in terms of application architecture functionality and requires provider lock-in. The Infrastructure as a Service (IaaS) model may sound like a solution to these problems by enabling application development freedom; however, it necessitates operation at the lower level of virtual machines and snapshots. In this chapter, the authors present CloudScale: a low-overhead middleware framework that migrates Java applications seamlessly to the Cloud with minimal changes in the application code. They focus on the main ideas behind CloudScale and its influence on solving Cloud software development and deployment problems with minimal overhead and Cloud-awareness required from developers.

scholarly journals A Vibration-Isolated Body of Chaotic Prediction

2011 ◽  
Vol 2-3 ◽  
pp. 978-983
Author(s):  
Yong Yi Gao ◽  
Shi Ping Zhan ◽  
Ban Gyan Li
Keyword(s):  
High Frequency ◽  
Simulation Experiment ◽  
Variable Parameter ◽  
Slow Variable ◽  
State Equation ◽  
Analytical Prediction ◽  
Vibration Isolator ◽  
Weak Nonlinearity ◽  
Analog Simulation ◽  
Inherent Frequency

The nonlinear dynamics equation of passive vibration isolator is established in this paper. According to the nonlinear vibration theory, the average equation of slow-varying primary harmonic in the condition of weak nonlinearity is abstained , and derived a discrete mapping of the harmonic slow variable parameter state equation, then get the analytical conditions of chaos in the passive vibration isolator, the analytical results show that only when the vibration frequency of the groundsill is higher than the inherent frequency of the passive vibration isolator, the chaos can be observed, when the groundsill vibrate with the large amplitude and high frequency vibration, the chaos can’t be observed in the passive vibration isolator system. Finally the analytical prediction is validated by analog simulation experiment, and gets the conclusion that the prediction matches well with the simulation results.

Design of Ground Monitoring System Guidance System Based on Virtual Instrument

2014 ◽  
Vol 644-650 ◽  
pp. 1180-1184
Author(s):  
Bo Zhang
Keyword(s):  
Monitoring System ◽  
Virtual Instrument ◽  
Standard Test ◽  
Guidance System ◽  
Missile Guidance ◽  
Monitoring Methods ◽  
Development Platform ◽  
Data Acquisition Card ◽  
Ground Monitoring ◽  
Guidance Device

For backward status of a missile guidance device monitoring methods, developed a set of ground monitoring system based on virtual instrument technology. The system meets the standard test of a certain type of missile guidance device, the data acquisition card and controller of PXI bus as the hardware platform, using LabVIEW as the software development platform, The acquisition of analog signal, video signal and serial communication set in one, it can detect the performance and parameters of the guidance device, and monitoring the flight trajectory of the missile qualitatively. The application results show that the monitoring system is stable and reliable, improve the efficiency and accuracy of monitoring, and has a certain popularization value.

LabVIEW-Based Design of Virtual Instruments and R&G of Virtual Experimental System

2014 ◽  
Vol 513-517 ◽  
pp. 1756-1759
Author(s):  
Yong Ning Wang
Keyword(s):  
Virtual Instrument ◽  
Experimental System ◽  
Current Status ◽  
Virtual Experiment ◽  
Tectonic Model ◽  
Research Areas ◽  
Experimental Teaching ◽  
Education Measurement ◽  
Instrument Technology ◽  
Application Classification

With the popularization of network technology, the computer technology is developing rapidly coupled with the emergence of virtual instrument technology. In this context, virtual experiment, an effective complement to the development of the traditional experimental method, has very broad spectrum of application in the field of education, measurement, and even other research areas. Thus, virtual experiment has become an important future development of experimental teaching. Based on analysis of the history and current status of the existing virtual laboratory at home and abroad, as well as the technologies used to accomplish a virtual experiment, this thesis makes a comprehensive study to analyze the construction of the virtual experiment system, including the basic theory of its establishment, the network environment, application classification, the specific tectonic model and technical methods and its development and applications.

Design of Temperature Acquisition and Analysis System Based on LABVIEW

2013 ◽  
Vol 816-817 ◽  
pp. 762-765
Author(s):  
Li Mei Wen ◽  
Min Ma
Keyword(s):  
Software Development ◽  
Real Time ◽  
Virtual Instrument ◽  
Environmental Temperature ◽  
Temperature Sensors ◽  
Development Platform ◽  
Labview Software ◽  
New Ideas ◽  
Instrument Technology ◽  
Analysis System

The introduction of the virtual instrument technology provides new ideas for the developments of the temperature acquisition. This paper presents the design of temperature acquisition system based on VI technology. This system takes LABVIEW as the software development platform, simulating environmental temperature parameters via temperature sensors and heaters. Through the USB-6009 data collecting cards environmental temperature is sent to LABVIEW software platform for analysis. The system has the functions of data acquisition, display, storage, callback, save, analysis, printing statements and limit alarm processing and so on, and completes the real-time collection and analysis of the temperature.

Design of Mechanical Vibration Test System Based on Virtual Instrument Technology

2011 ◽  
Vol 322 ◽  
pp. 291-295 ◽  
Author(s):  
Hua Zhao
Keyword(s):  
Data Acquisition ◽  
Virtual Instrument ◽  
Mechanical Vibration ◽  
Domain Analysis ◽  
Test System ◽  
Acquisition Time ◽  
Vibration Test ◽  
Time Frequency ◽  
Development Platform ◽  
Instrument Technology

With piezoelectric acceleration sensor, charge voltage filter amplifier, data acquisition card, PC and vibration experiment table for hardware development platform, and LABVIEW for software development platform, virtual instrument technology was applied to the design of mechanical vibration test system. This test system mainly consists of data acquisition, time domain analysis, amplitude domain analysis, frequency domain analysis, time-frequency analysis module. Experimental results indicate: The system not only can perform real-time data acquisition of multiple channels signal, waveform display, data storage, signal analysis, playback measurement and output printing etc, but also has good expansibility, high speed, high accuracy and friendly interface. It is suitable for engineering personnel and laboratory use.

Design of the Remote Environment Monitoring System Based on Virtual Instrument

2012 ◽  
Vol 155-156 ◽  
pp. 111-114 ◽  
Author(s):  
Rong Chun Sun ◽  
Xue Son
Keyword(s):  
Instrument Development ◽  
Virtual Instrument ◽  
Test Results ◽  
Environment Monitoring ◽  
Development Platform ◽  
High Intelligence ◽  
Data Acquisition Card ◽  
Remote Environment ◽  
Measurement Devices ◽  
Remote Client

Environment monitoring technology is widely applied in industry, agriculture and other fields. Engineers usually need to integrate multiple measurement devices to complete a monitoring tusk, and make these different devices to be connected, which always spend a lot of time. Based on virtual instrument development platform, this paper described how to achieve the temperature and humidity data collection via the data acquisition card, sensors and PC, and realized the real-time display on the remote client through the DataSocket technology. The test results show that the system has the advantages of convenient operation, high intelligence and high accuracy, compared with the traditional instruments.

Sign in / Sign up

Export Citation Format

Share Document