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Received:November 22, 2009 Revised:January 08, 2010
Received:November 22, 2009 Revised:January 08, 2010
中文摘要: 针对移动网络通话问题日益严重，需要建立一个故障树分析(FTA)模型。利用BDD技术分析各个基本事件的结构重要度、概率重要度和临界值重要度。基本事件的排序对故障树生成的BDD节点个数有直接影响，以及节点的结构重要度和概率重要度都有影响。采用相邻底事件优先排序法，能够尽量减少BDD节点个数和对重要度的影响。利用BDD法比传统FTA法计算的重要度数值更接近，计算效率更高。
中文关键词: 故障树分析(FTA) BDD 结构重要度 概率重要度 临界值重要度
Abstract:With the growing problems of mobile network calls, it is necessary to create a fault tree analysis (FTA) model. Using the BDD method, this paper analyses each basic event's structural importance, probability importance and critical importance. The order of the basic event of fault tree has a direct impact on the number of BDD nodes, as well as the structural importance and probability importance degree. With the neighbor-event-first method, the number of BDD nodes and the important degree of impact can be minimized. The importance degree with BDD method value is closer to calculate than the traditional FTA method. And the calculation is more efficient.
keywords: fault tree analysis (FTA) BDD structural importance probability importance critical importance
文章编号： 中图分类号： 文献标志码：
基金项目:
| Author Name | Affiliation |
| LIU Lin-Mao | 湖南大学 软件工程系 湖南 长沙 410082 |
| BIAN Nai-Zheng |
| Author Name | Affiliation |
| LIU Lin-Mao | 湖南大学 软件工程系 湖南 长沙 410082 |
| BIAN Nai-Zheng |
引用文本：
刘林茂,边耐政.二元决策图BDD在话务故障分析中的应用①.计算机系统应用,2010,19(8):182-186
LIU Lin-Mao,BIAN Nai-Zheng.Application of Binary Decision Diagram BDD to the Network Call Fault Analysis.COMPUTER SYSTEMS APPLICATIONS,2010,19(8):182-186
刘林茂,边耐政.二元决策图BDD在话务故障分析中的应用①.计算机系统应用,2010,19(8):182-186
LIU Lin-Mao,BIAN Nai-Zheng.Application of Binary Decision Diagram BDD to the Network Call Fault Analysis.COMPUTER SYSTEMS APPLICATIONS,2010,19(8):182-186
