针对电子装备故障预测中的预测参数选取问题,建立电子装备故障预测信息系统,设置故障预测参数选取原则,基于多信号流图模型提取反映电子装备故障状态的预测参数集,利用决策辨识函数对该参数集进行约简,并采用基于相关危险度的统计模型选取出最优故障预测参数集。实例证明该方法可以实现预测参数选取的自动化。 Aiming at the selection of prediction parameters in the electronic equipment fault prediction, the fault prediction information system of electronic equipment is set up, the principle of selecting fault prediction parameters is set, the prediction parameter set reflecting the fault state of electronic equipment is extracted based on multi-signal flow graph model, The parameter set is reduced, and the optimal fault prediction parameter set is selected by statistical model based on relative risk. The example proves that this method can automate the selection of prediction parameters.