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

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3 Author(s)
Eren, H. ; Sch. of Electr. & Comput. Eng., Curtin Univ. of Technol., Bentley, WA ; Nichols, W.J. ; Wongso, I.

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

Published in:

Instrumentation and Measurement Technology Conference, 2001. IMTC 2001. Proceedings of the 18th IEEE  (Volume:2 )

Date of Conference:

2001