高速列车测速测距系统故障模式研究

Fault Model of Speed and Distance Measurement System for High-speed Trains

在研究高速列车典型测速测距传感器特点的基础上,提出传感器故障分类方法,可以将不同传感器、不同类型的故障进行统一的划分。在故障分类的基础上,提出故障分析模式,将传感器的工作模式分为可信、可用、在线和故障,并应用该模式对测速测距系统传感器故障进行实例分析。分析结果表明,该模式可以对任意组合的故障进行分析,具有重要的实用意义。

Based on the study on the characteristics of different speed and distance measuring sensors, the paper proposes a new sensor fault classifi cation method to classify uniformly faults of the sensors and types of the faults. Furthermore, based on the fault classifi cation, it puts forward the fault analysis model according to the four work models divided, including reliable, available, online and fault work models. This fault analysis model is applied to a real fault pattern analysis. The analysis result shows that the model can analyze any combination fault, and it has important practical signifi cance.