Abstract
A line of Shanghai metro has been put into use for nearly fifteen years. There are three times extended during this time. The existing line’s data transmission system was modified over the last decades and has adopted many kinds of data transmission technology. By the analysis and research of communication interrupt of certain line’s data transmission system, which usually occurred in some site, the maintainers can find various security hidden danger in time and take corresponding measures, which has improved the quality of metro operation.
Highlights
One of Shanghai metro line has adopted a new data transmission technology, which provide a high speed, large capacity optical fiber transmission channel
Network topology refers to the transmission media interconnect devices of all kinds of physical layout, especially the position of the distribution of computer and the cross style of cable
DTS of Shanghai metro line appears multi-site communication interrupt trouble, which has led to the failure of interlock
Summary
One of Shanghai metro line has adopted a new data transmission technology, which provide a high speed, large capacity optical fiber transmission channel. The data transmission system of shanghai metro has become more safe, reliable and fast. Through the trouble analysis and research of this phenomena, the worker of metro maintenance can find various security hidden danger in time, and take corresponding corrective measures
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