Railway vehicle fault diagnosis device

Abstract

The invention provides a railway vehicle fault diagnosis device. The railway vehicle fault diagnosis device comprises a vibration sensor,a temperature sensor,a vibration signal processing module,a temperature signal processing module and a control device; the vibration sensor is arranged on an axle box of a railway vehicle and used for obtaining a vibration signal when the vehicle runs; the temperature sensor is arranged on a brake of the railway vehicle and used for obtaining a temperature signal of the brake when the vehicle runs; the vibration signal processing module is in wireless connection with the vibration sensor and used for processing the obtained vibration signal,extracting fault feature information of the vibration signal and conducting fault detection; the temperature signalprocessing module is in wireless connection with the temperature sensor and used for processing the obtained temperature signal,predicting the change trend of the temperature signal and conducting fault detection; the control device is connected with the vibration signal processing module and the temperature signal processing module and used for receiving fault detection results of the vibration signal processing module and the temperature signal processing module and giving alarm messages when it is detected that faults occur. The railway vehicle fault diagnosis device is high in reliabilityand adaptability.

Description

technical field [0001] The invention relates to the field of intelligent interaction technology, in particular to a rail vehicle fault diagnosis device. Background technique [0002] With the rapid development of China's social economy, my country's urbanization process is gradually deepening. By 2016, the total length of urban rail lines is expected to reach 3,500 kilometers, and more than 30,000 urban rail vehicles in more than 60 cities will be put into operation in 2020. . With the rapid development of urban rail transit and the use of a large number of vehicles, the operation safety of vehicles has become the focus of attention in recent years. [0003] Due to the complex working environment, the running system of urban rail vehicles is prone to various failures when the load impact is too large or is affected by factors such as improper installation design and poor lubrication state. It is one of the most vulnerable systems in urban rail vehicles. Real-time monitoring...

AI Technical Summary

Problems solved by technology

The research on the automatic diagnosis device of the running system of urban rail vehicles is currently mainly focused on the time-frequency analysis of vibration signals, such as wavelet analysis, short-time Fourier transform, empirical mode decomposition, and amplitude spectrum features. The analysis is aimed at a single sensor and a single fault mode. However, there are many

Images