轨道交通车辆专家诊断系统的分析与应用

Application and Analysis of Expert Diagnosis System for Rail Transit Vehicles

当前国内地铁车辆缺乏车辆在线状态监测、故障诊断、故障预测以及健康评估等功能,并且车辆检修采取人工方式进行,存在误检、漏检以及检查标准不统一等问题。介绍了轨道交通车辆专家诊断系统。该系统具备车辆状态实时监控和故障预测功能,系统可以实时采集MVB总线上各子系统的关键状态及故障数据信息,以及以太网总线上各子系统设备内部维护数据信息,支持根据实际需求预置相关故障诊断及状态预警算法逻辑模型,对实时获取的数据进行诊断分析,实现车辆状态预诊断功能。重点了论述专家诊断系统的总体架构以及系统功能,并对专家诊断系统的关键子系统功能进行分析。

At present,domestic metro vehicles lack the functions of vehicle online status monitoring,fault diagnosis,fault prediction and health assessment,and the manual vehicle maintenance exists problems such as wrong inspection,missing inspection and inconsistent inspection standards.This paper introduces the expert diagnosis system of rail transit vehicles.The system has the function of real-time monitoring and fault prediction of vehicle status.The system can collect the key status and fault data information of each subsystem on the MVB bus in real time,as well as the internal maintenance data information of each subsystem equipment on the Ethernet bus,support the preset of relevant fault diagnosis and status early warning algorithm logical model according to the actual needs,diagnose and analyze the real-time acquired data,and realize the vehicle status pre-diagnosis function.It focuses on the overall structure and system functions of the expert diagnosis system,and analyzes the key subsystem functions of the expert diagnosis system,reflecting the importance and urgency of the expert diagnosis system in the operation and maintenance of urban rail transit.