| 1. | Squared prediction error ( spe ) of model is detected continuously , in case abnormity is found , currently data direction is calculated by pca method , and compared with fault character direction storeroom , thereby fault is diagnosed 不断观察模型的平方预测误差( spe ) ,一旦发现异常,利用主元分析方法,求出当前数据的特征方向,并与故障特征方向库进行比较,从而诊断出故障来。 |