Abstract

A multi-sensor and multi-parameter condition monitoring and fault diagnosis system is designed and implemented for modern manufacturing systems, such as flexible manufacturing cells and systems. The overall hardware and software designs of this system, together with the functional sub-systems, are presented. This implemented system monitors power, vibration, temperature and pressure of the drives and spindles with a total of 72 diagnostic features and uses a cost-weighted function to identify diagnostic solutions with the lowest cost. Condition monitoring, data acquisition, knowledge acquisition and representation, as well as the diagnostic reasoning strategy of the knowledge-base system are presented in detail. The system was implemented and tested in a textile plant with satisfactory results.

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