报告题目：Integrated decision-support system for diagnosis, maintenance planning, and scheduling of manufacturing systems

报 告 人：Dr. V. Jorge Leon

邀 请 人：系统工程所 黄敏教授

时    间：   2008年11月27日（周四）上午9：00-10：30

地    点：   主楼226会议室

Abstract:

We present a framework for integrated decision support system to diagnose faults and generate efficient maintenance and production schedules. The framework is composed of three modules, namely, the Diagnosis Module, the Maintenance Planning Module, and the Scheduling Module. In the Diagnosis Module, a vector of faults is fed into an influence diagram representing the causal relationships of the system.  Given an instantiation of the fault vector, a stochastic sampling algorithm is applied to update the joint-probability distribution associated with the influence diagram and rank the possible causes of the faults. The Maintenance Planning Module searches a Look-Up-Table to find maintenance activities to correct the fault.  The Scheduling Module determines the best sequence for operations and maintenance activities.  Optimal scheduling results will be presented.  The framework is illustrated with a prototype implementation of the integrated system for a scenario of a single pick-and-place machine in the context of electronics assembly systems.

About the speaker:

Dr V. Jorge Leon is the Allen-Bradley Professor at Texas A&M University (Texas-USA) where he holds a joint appointment in the departments of Industrial and Systems Engineering, and Engineering Technology and Industrial Distribution.  His interests are in the areas of operations modeling and applied optimization.  Dr. Leon’s research work has been sponsored by the National Science Foundation, the U.S.A. Army, the National Aeronautical and Space Agency (NASA), and the high-tech industry, among others.   Dr. Leon has received several recognitions at Texas A&M University including the Halliburton Professorship Award, the 3M Fellowship, the Ford Faculty Fellowship, and the Center for Teaching Excellence Award.  Dr. Leon is the Program Director of the Manufacturing and Mechanical Engineering Technology program at TAMU (2000-present), and the Editor of the Journal of Manufacturing Systems (2004-2007).  Dr. Leon is a member of ASEE, IEE, INFORMS, and SME.