输电导线机械破损的红外检测与故障诊断

借助红外辐射理论，建立了破损导线的热辐射场和红外传感器对其输入响应的模型。研制和开发了一种新型的导线破损的红外检测与故障诊断仪。提出了基于峰峰值邻域特征参数的综合识别判据在线识别断股故障信号以及用二进小波对突变信号奇异性检测来离线识别断一股信号和股波信号，这种故障识别方法既可以提高故障识别效率又可以保证故障识别的精度。

Infrared Ray Detection and Fault Diagnosis of Mechanical Fault on High Voltage Lines

The models of heat radiation field of brocken high voltage lines and of responding to its input with a infrared ray detector are set up by the theory of infrared radiation.An infrared detection and a fault diagnostic instrument have been developed.Breakdown faults are identified on line on the basis of complex identification rules with the characteristic parameters nearby peak-peak values,and the singularity detection of sudden change signals with discretized dyadic wavelet transforms is used to identify off line the signals between a breakdown strand and strand wave,which not only raises the efficiency but also assures the precision in identifying faults.