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针对故障特征数据模拟生成算法与航天器的原理、模型关联度高,航天器状态描述模型不成熟、难以应用于工程实践的现状,根据反映航天器在轨故障的遥测数据表现形式和变化时间长短,将航天器故障进行分类。从遥测数据变化的角度,针对每类故障遥测数据的变化特点,研究了符合每类故障数据变化规律的故障特征数据生成算法及基于WEB服务的故障特征数据生成原型系统实现方式。生成的故障特征数据在故障检测、诊断与预警等方面得到成功应用,使航天器对象、状态演化规则和测控信息产生等故障输入数据更接近真实的动态特征。
In view of the fact that the algorithm of fault characteristics data generation and the principle of spacecraft, the high correlation degree of the model and the state description model of the spacecraft are not mature enough to be applied in engineering practice, according to the manifestation and the changing time length of the telemetry data reflecting the in-orbit fault of the spacecraft , The classification of spacecraft failures. From the perspective of telemetry data changes, according to the changing characteristics of each type of fault telemetry data, the algorithm of fault feature data generation and the realization of fault prototype data generation prototype system based on Web service are studied. The generated fault feature data is successfully applied in fault detection, diagnosis and early warning so that fault input data such as spacecraft objects, state evolution rules and measurement and control information generation are closer to the real dynamic features.