Impact Analysis of Section Faults in U888 Signaling System
In the signaling system for urban rail transit,the Communication Based Train Control(CBTC)system is the main system for operating lines in China.For CBTC trains with normal train positioning and train-wayside communication,if a section fault occurs and the safety protection envelope of the downgraded train spreads to the faulty section,the faulty section will be considered by the interlocking system as occupied,so that the automatic clearing conditions of the route protection signal will not be met.Considering an actual case of section fault at Weiting Station on Suzhou Rail Transit Line 3,this paper analyzes the impacts of the protective envelope for train safety and the section fault when the brown and purple light strips are lit alternately to display the fault on the ATS interface.It also provides corresponding response measures and handling methods for operation and train management,which improves the efficiency of train operation commanding.
section faultprotective envelopeU888 signaling systemautomatic clearing conditionCommunication Based Train Control(CBTC)system
万方数据
维普
