Networked control and supervision system based on LonWorks fieldbus and Intranet/Internet

Abstract

A networked control and supervision system (NCSS) based on LonWorks fieldbus and Intranet/Internet was designed, which was composed of the universal intelligent control nodes (ICNs), the visual control and supervision configuration platforms (VCCP and VSCP) and an Intranet/Internet-based remote supervision platform (RSP). The ICNs were connected to field devices, such as sensors, actuators and controllers. The VCCP and VSCP were implemented by means of a graphical programming environment and network management so as to simplify the tasks of programming and maintaining the ICNs. The RSP was employed to perform the remote supervision function, which was based on a three-layer browser/server(B/S) structure mode. The validity of the NCSS was demonstrated by laboratory experiments.

Keywords

fieldbus / LonWorks / networked control / visual control configuration / Web database

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