Towards an Internet-based virtual-wire environment with virtual instrumentation

An Internet-based virtual-wire application that uses virtual instrumentation to achieve a continuous control of a closed loop control system is presented. The system acquires data from remote signal sources and publishes them via the Internet in the real-time, while enabling the remote user to send...

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Bibliographic Details
Published inIMTC 2001. Proceedings of the 18th IEEE Instrumentation and Measurement Technology Conference. Rediscovering Measurement in the Age of Informatics (Cat. No.01CH 37188) Vol. 2; pp. 817 - 820 vol.2
Main Authors Eren, H., Nichols, W.J., Wongso, I.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2001
Subjects
Application software
Computer languages
Control systems
HTML
Instruments
Internet
Java
Real time systems
Three-term control
Web server
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Summary:An Internet-based virtual-wire application that uses virtual instrumentation to achieve a continuous control of a closed loop control system is presented. The system acquires data from remote signal sources and publishes them via the Internet in the real-time, while enabling the remote user to send control signals from the web-browser to the server application for the control of a PID based control system. The system involves the development of the server application using LabVIEW graphical programming language and the client application, which is a Java Applet embedded to a HTML format. Problems and limitations of achieving stable continuous control of the system by the remotely located computers are discussed. It was found that continuous control of a real time system via the Internet is possible, but a sustained virtual wire application with the current limitations of Internet technology is impossible.
ISBN:9780780366466
0780366468
ISSN:1091-5281
DOI:10.1109/IMTC.2001.928191