Design and implementation of a generic nonconformance tracking and recovery (GINTR) system

摘要

Nonconformance tracking and recovery remains a major issue in large complex manufacturing systems due to the complexity of manufacturing processes, diversity of parts, high density of nonconformances, and fuzziness of nonconformance information. In addition, the existing nonconformance tracking and recovery systems are usually special purpose systems. They lack the capabilities to migrate to new working domains and integrate with other systems. This research proposes a comprehensive approach to nonconformance tracking and recovery. In conjunction with the soft computing and case-based reasoning (CBR) technologies, a generic intelligent system is designed to address the nonconformance tracking and diagnosis problem. A system built under such a comprehensive approach can track the nonconformance with multiple causes as well as limited knowledge and provide timely diagnostic recovery. A prototype of the GINTR system has been developed using the Microsoft .NET technology, which is considered as the next generation distributed computing paradigm. The prototype system developed is generic, fault tolerant, and agile. It can be adapted to diverse complex manufacturing environments with minimum difficulty.