关键词：多传感器；数据融合；故障诊断；DS证据理论
摘 要：In this papcr,wc prcscnted an cquipmcnt fault diagnosis method based on multi-sensor data fusion,in order to solve the problems such as uncertainty,imprecision and low reliability caused by using a single sensor to diagnose the equipment faults.We used a variety of sensors to collect the data for diagnosed objects and fused the data by using D-S evidence theory,according to the change of confidence and uncertainty,diagnosed whether the faults happened.Experimental results show that,the D-S evidence theory algorithm can reduce the uncertainty of the results of fault diagnosis,improved diagnostic accuracy and reliability,and compared with the fault diagnosis using a single sensor,this method has a better effect.