Research of Turnout Fault Diagnosis Method Based on Qualitative Trend Analysis

摘要

The turnout is connected to different tracks and usually installed between two or more strands, not only is responsible for switching track line but also ensures operation safety. It is of great practical significance to study the fault diagnosis methods. The fault diagnosis method based on qualitative trend analysis is to use the interval semi-division method to extract the trend of different state signals, and match the diagnostic signal with it to obtain the result. The experimental results show that the presented method has good accuracy.