市域铁路车门及站台门对位隔离方案研究OA

[Objective]To improve the safety of the linkage control of train doors and platform screen doors in the CTCS2+ATO train control system for suburban railways,and in view of the potential safety hazards that may arise from the failure of a single train door or platform scree door in the existing door linkage schemes,a study on alignment isolation schemes for train doors and platform screen doors is conducted.[Methods]First,the current status of alignment isolation of train doors and platform screen doors in urban rail transit was reviewed to analyze the limitations of the existing schemes,combined with the architecture of the CTCS2+ATO train control system for suburban railways and the specific application scenarios related to alignment isolation of train doors and platform screen doors.On this basis,three alignment isolation schemes were proposed to achieve isolation protection through real-time interaction of the fault states of train doors and platform screen doors.Both scheme 1 and scheme 2 were based on the train control system for information interaction and linkage control,in which scheme 1 transmitted fault information via a traditional relay interface,while scheme 2 employed a communication interface.Scheme 3 directly transmitted fault status information by introducing a wireless communication channel between the train door and the platform screen door system.[Results]A comparative analysis of the three schemes from the perspectives of system architecture,information transmission,and applicability revealed that schemes 1 and 2 required significant modifications to the functions and interfaces of the existing train control system,and their fault analysis chains were relatively long.In contrast,scheme 3 demonstrated significant advantages in terms of operational flexibility,emergency response capability,and fault location.[Conclusion]The research results show that suburban railways should give priority to the direct communication between the train door and the platform screen door system to realize alignment isolation of train doors and platform screen doors,thereby effectively reducing the safety risks caused by single-door failures and improving the efficiency of fault handling.