1. Optimal Sequential Diagnostic Strategy Generation Considering Test Placement Cost for Multimode Systems
- Author
-
Zheng Hu, Shigang Zhang, Wei Zhang, Yongmin Yang, and Lijun Song
- Subjects
Mathematical optimization ,Multi-mode optical fiber ,Computer science ,sequential fault diagnosis ,Process (computing) ,multimode system ,diagnostic strategy ,lcsh:Chemical technology ,Fault (power engineering) ,Diagnostic strategy ,computer.software_genre ,Biochemistry ,Article ,Atomic and Molecular Physics, and Optics ,Fault detection and isolation ,Analytical Chemistry ,Test (assessment) ,AND/OR graph ,System transformation ,lcsh:TP1-1185 ,Data mining ,Electrical and Electronic Engineering ,Instrumentation ,computer - Abstract
Sequential fault diagnosis is an approach that realizes fault isolation by executing the optimal test step by step. The strategy used, i.e., the sequential diagnostic strategy, has great influence on diagnostic accuracy and cost. Optimal sequential diagnostic strategy generation is an important step in the process of diagnosis system construction, which has been studied extensively in the literature. However, previous algorithms either are designed for single mode systems or do not consider test placement cost. They are not suitable to solve the sequential diagnostic strategy generation problem considering test placement cost for multimode systems. Therefore, this problem is studied in this paper. A formulation is presented. Two algorithms are proposed, one of which is realized by system transformation and the other is newly designed. Extensive simulations are carried out to test the effectiveness of the algorithms. A real-world system is also presented. All the results show that both of them have the ability to solve the diagnostic strategy generation problem, and they have different characteristics.
- Published
- 2015