Abstract

Many capital-intensive industries such as iron and steel, energy, refining, petrochemical and manufacturing companies have the pressure of continuous increase in maintenance costs. In recent years, condition based maintenance becomes an important tool for reducing maintenance costs in these industries. It is a very information intensive domain. Good condition based maintenance systems need to integrate multiple heterogeneous data sources. In this paper, we will use ontology to describe the semantics of condition based maintenance concepts. It serves two main purposes: (1) offering a common understanding of the condition based maintenance domain, and (2) the knowledge held in the ontology is machine-readable and explicit, thus making the knowledge easy to be processed and reused.

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