| 航天器故障征兆识别机制研究 |
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| 引用本文： | 刘帆,李明,李怡,康妮.航天器故障征兆识别机制研究[J].飞行器测控学报,2009(6). |
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| 作者姓名： | 刘帆 李明 李怡 康妮 |
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| 作者单位： | 西安卫星测控中心; |
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| 摘 要： | 为克服针对二值逻辑型阈值比较方法的固有缺陷,本文基于航天器状态划分故障征兆的思想,提出了利用遥测数据的数值型特征甄别遥测野值并获取故障征兆可信度的规则推理新方法。经验证,该机制不仅能够有效避免遥测野值导致的诊断误报现象,而且能够充分体现遥测数据的变化趋势和满足判断条件。
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| 关 键 词： | 航天器 故障诊断 征兆识别 基于规则推理 可信度 |
Study of spacecraft fault symptom recognizing mechanism |
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| LIU Fan,LI Ming,LI Yi,KANG Ni.Study of spacecraft fault symptom recognizing mechanism[J].Journal of Spacecraft TT&C Technology,2009(6). |
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| Authors: | LIU Fan LI Ming LI Yi KANG Ni |
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| Institution: | LIU Fan,LI Ming,LI Yi,KANG Ni(Xi'an Satellite Control Center,Xi'an,Shaanxi Province 710043) |
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| Abstract: | Based on the thought of differentiating fault symptom with spacecraft status,one improved RBR technique,which adapts the numerical properties of telemetry to discriminate wild data and obtain certainty factor of fault symptom,has been introduced in this thesis to overcome the inherent defects of two valued logic threshold.The test results show that this mechanism can not only avoid fault alarm caused by wild data,but can fully reflect the trend of telemetry and the result of meeting judging conditions. |
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| Keywords: | Spacecraft Fault Diagnosis Symptom Identification RBR CF |
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