Research On The Data Storage And Transmission System For On-Line Monitoring Of Locomotive

The locomotive running state has a direct connection to the safety of railway transportation. Thus monitoring the running state of locomotive and maintaining locomotive is the strong guarantee to keep the locomotive in good condition. With the increasing of the speed of railway transport and the enhancement of transport density, the insufficiency of locomotive overhaul and the laggard overhaul method has been an obstacle to the safety of railway system and running efficiency. To solve this problem, the international common viewpoint is overhauling the locomotive in the its running condition. To achieve state repair of locomotive vehicles, the first task is to monitor their running condition in real time, record every parameter of its running state at the same time, analyze and process scientifically this parameter. So we can make right diagnosis and offer the corresponding strategy to work condition and running current. Thus the storage and analysis of the locomotive running data has a strong practical significance and demand. The data storage and transmission system for the on-line monitoring of locomotive is made to check roundly all kinds of state parameter during the locomotive running process, to store the data of detection and transmit this data to the ground, providing the historical data for locomotive state repair.This paper focuses on research of the data storage and transmission system for on-line monitoring of locomotive. The system uses CAN bus to communicate with every examining module, and store the state data to the mass memory CF card. With the analysis and comparison of the data storage mode we have, the system transmit the state data to the ground via USB flash disk or wireless transmission. USB flash disk has an advantage of convenience, huge capability, credibility and low price. So it is the unique choice of portable data storage.Based on the combination of locomotive running condition of our country and status of locomotive's on-line monitoring, this paper uses the advantage mature techniques, emphasizes the key point of the design of CAN bus net and USB system, and analyze the FAT file system. In the end of the paper, it provides the software and hardware design of the data storage and transmission system.