基于模糊故障树的液晶电视故障分析  

Fault Analysis of LCD TV Based on Fuzzy Fault Tree

作　　者：尤文坚[1] 李曼 吴子珎 黄彦钧 

机构地区：[1]广西农业职业技术学院电子信息工程系,广西南宁530007 [2]广西人民广播电台技术部,广西南宁530022 [3]广西电视台技术营运中心,广西南宁530031

出　　处：《电视技术》2013年第10期108-111,共4页Video Engineering

基　　金：广西教育厅自然科学科研项目(200911LX547)

摘　　要：针对液晶电视故障机理、故障原因的不确定性及模糊性,将模糊集理论引入其故障树分析中。建立了液晶电视模糊故障树,应用模糊运算法则对其进行定性分析及定量分析,计算出顶事件的模糊概率以及底事件的重要度。研究结果表明,该方法可以较好地解决液晶电视故障树分析中底事件故障判据的不确定性问题,为液晶电视的设计及故障诊断提供参考,对建立特定的液晶电视故障智能诊断系统非常有效。To solve the problem of fuzziness and indetermination in failure mechanism and causation oi LCD TV, the luzzy theory is introduced into fault tree amdysis. A fuzzy fault tree of LCD TV is established and analyzed according to fuzzy calculation rule, fuzzy probability of top event and importance of basic event is calculated. The result indicates that this method can solve the indetermination problem of failure criterion in LCD TV fault tree analysis. It provides valuable reference for the design and fault diagnosis of LCD TV, and it＇s very effective t~ establish specific fault intelligent diagnosis system of LCD TV.

关 键 词：模糊故障树 液晶电视 故障 重要度 

分 类 号：TN949.7[电子电信—信号与信息处理]