Research in On-board Big Data Storage and Retrieval Technology of EMU Based on Distributed Technology
With the upgrade of the data transmission capability of the EMU and the online operation of the Fuxing intelligent EMU,the data of the EMU monitoring items is rapidly expanding.How to store,retrieve and query the massive on-board non-real-time data of trains efficiently and accurately becomes a challenge to improve the on-board data management and application level of trains.In this paper,a massive non-real-time data ground system architecture based on distributed technology is proposed.The data service sites of each motor vehicle operation station are used as sub-nodes,and the China Railway data service center is used as the master node.The rapid retrieval algorithm of massive data with space-time attributes is studied.An architecture which supports distributed data storage,retrieval and data analysis is build,a prototype system was developed and the feasibility and effectiveness of the solution are verified in this paper.
wireless transit device system(WTDS)EMU onboard massive datadata retrievaldistributed system architecture
万方数据
维普
