| 引用本文: | 杨 帆, 萧德云.SDG建模及其应用的进展[J].控制理论与应用,2005,22(5):767~774.[点击复制] |
| YANG Fan,XIAO De-yun.Review of SDG modeling and its application[J].Control Theory and Technology,2005,22(5):767~774.[点击复制] |
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| SDG建模及其应用的进展 |
| Review of SDG modeling and its application |
| 摘要点击 2126 全文点击 1617 投稿时间：2004-09-01 修订日期：2005-05-30 |
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| DOI编号 10.7641/j.issn.1000-8152.2005.5.019 |
| 2005,22(5):767-774 |
| 中文关键词 符号有向图(SDG) 安全评估 故障诊断 HAZOP |
| 英文关键词 signed directed graph(SDG) hazard assessment fault diagnosis hazard and operability study(HAZOP) |
| 基金项目 国家高技术研究发展计划(863计划)资助项目(2003AA412310) |
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| 中文摘要 |
| 符号有向图SDG(signed directed graph)是描述大规模复杂系统的一种有效方式,通过节点和有向支路表示了系统变量或局部之间的因果影响关系.近年来,关于SDG的研究已经成为热点并已取得许多成果,特别是在安全分析领域得到了重要的应用.本文在概述了SDG方法的产生背景与发展近况的基础上,主要综述了SDG研究中的若干重要问题,包括SDG模型的数学描述和基于数学模型、流程图和经验知识的三种建模方法,以及SDG在安全评价和故障诊断领域研究和应用的相关成果,总结了相关方法的优缺点,其中的核心问题是推理方法及其效率.最后对SDG技术的发展方向做出了展望,定量信息引入、推理方法、计算机建模等方面都有待于进一步研究. |
| 英文摘要 |
| Signed directed graph(SDG) is an effective description of large-scale complex systems,which can express system variables and their cause-effect relations by nodes and directed branches.In recent years,the research on SDG has been a focus and obtained a lot of achievements,especially in the area of hazard or safety analysis.After reviewing the background and up-to-date developments of SDG approach,a summary is given,including some major problems in SDG study.Firstly,mathematical formulation and three kinds of modeling approaches of SDG(based on mathematical model,flow chart and experiences) are introduced.Then,the main results of the research and applications in hazard assessment and fault diagnosis are presented,and the advantages and limits of several methods are discussed,in which the key problem is inference methods and their efficiency.Finally,the prospects of SDG are proposed that many aspects should be researched in depth such as introduction of quantitative information,the inference method and modeling automatically. |
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