Author(s): BAO Pengyu, NIU Daoheng
Pages: 8-10
Year: 2015 Issue:  5
Journal: Railway Signalling & Communication Engineering
Keyword:  speed and distance measurement; fault model; tachometer; radar;
Abstract: Based on the study on the characteristics of different speed and distance measuring sensors, the paper proposes a new sensor fault classiifcation method to classify uniformly faults of the sensors and types of the faults. Furthermore, based on the fault classiifcation, 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 signiifcance.