Fault Diagnosis System of Locomotive Axle's Track Based on Virtual Instrument

Railway vehicle is usually working in hazardous environment. The operational status of axle, which is the railway vehicle's main components to run, affects the safe operation of the railway vehicle directly. Over the years, the railway of our country has remained low equipment-rate, high using-rate and high intensity-transport. In addition, because of the need of the rapid development of economy, our country has raised the speed of the railway vehicle, which leads to the railway vehicle's axle wearing and tearing seriously, the life shortened and accidents increasing significantly. So, it is very necessary and urgent to develop the detection system because axle is related to the safety of the railway vehicle. Compared with traditional instrument, the virtual instrument has characteristics of openness, easy using and high cost performance. It has already been widely used in detection systems at present. Based on LabVIEW which is a developing platform software of NI Company, the paper has designed a kind of fault diagnosis system on locomotive axle's track.