ActiveX Control Development of Virtual Instrument Based on COM Technology

Author(s):  
Lu Xuqing ◽  
Gao Ying ◽  
Lei Lei ◽  
Wang Xiuliang ◽  
Guo Shuxia
2011 ◽  
Vol 201-203 ◽  
pp. 1993-1997
Author(s):  
Hai Ling Shi ◽  
Yi Mei Song ◽  
Jia Wei Xiang ◽  
Wei Wei Yue ◽  
Cai Liao

The remote monitoring system for fault diagnosis based on B/S model is established using ActiveX control and virtual instrument (VI) techniques. The system consists of clients, network communications and remote fault diagnosis center. Remote panel technology based on B/S model using LabVIEW is constructed to realize the real-time display the results of remote monitoring. The remote fault diagnosis is achieved based on expert system. The temperate monitoring example shows the effective of this system.


2009 ◽  
Vol 1 (07) ◽  
pp. 842-847 ◽  
Author(s):  
Vladimir Dimcev ◽  
Zivko Kokolanski ◽  
Cvetan Gavrovski ◽  
Mare Srbinovska

2020 ◽  
Vol 65 (1) ◽  
pp. 179-186
Author(s):  
Mihaela Dorica Stroia

Current software development directions open up a world of possibilities, especially in the engineering field. Present paper is meant to highlight the advantages and in particular the ease of using virtual instrumentation facilities, with a proper and adequate design and implementation of desired instrument. In this idea we bring into discussion a design for virtual instrument which can be used for data acquisition that can be stored for further simulations according to the needs required by the process in discussion.


Author(s):  
Tossenko O.M.

The development of measuring instruments requires a specialist to know the principles of operation of advanced measuring systems. This article describes guidelines for creating a virtual appliance in LabVIEW. LabVIEW (Laboratory Virtual Instrument Engineering Workbench) is a graphical application programming environment used as a standard tool for measuring, analyzing their data, further ma­ naging devices and objects under study. LabVIEW language is not like other programming languages. It does not create a program, but a virtual tool, designed not only for the simulation of certain processes, but also for the management of hardware and the study of real physical objects. The article deals with the task of designing application software for a specific information-measuring device, analyzes the capabilities of the LabVIEW environment for spectral analysis of various signals, outlines the basic principles and techniques of programming within the framework of the LabVIEW graphical environment during the basic stages of development. The procedure for creating a virtual device is described, which allows to evaluate the spectral composition of the signals, presents a graphical code of execution (diagram) to the program and a graphical tool interface of the virtual device. A number of basic elements used to develop the program are described. The simplicity of the graphic designs, the ease of installation on the field of the program, the clarity and readability of the program — all of which makes LabVIEW preferred over other languages of programming. In most cases, the experiment is the only source of reliable information. And the result is achieved much faster than the methods of "pure" theory. The article substantiates the effectiveness of using a development tool that allows to obtain a software product and ensure the fulfillment of all the basic functions of an automated system. Developing a software algorithm for calculating statistical parameters will help engineering students understand the order of determining spectral characteristics and their place in the structure of experimental research.


2010 ◽  
Author(s):  
Chengang Lü ◽  
Ruifeng Zhang ◽  
Pengfei Cheng ◽  
Kejia Li ◽  
Xing Wu ◽  
...  

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