Design And Implementation Of Station Alarm For Comprehensive Monitoring System

Railway signal plays a vital role in railway transportation safety.Once the signal fault has occurred and not been found in time,it can easily lead to serious traffic accidents.To ensure traffic safety,it is necessary to monitor the status of signalling equipments.At present,Chinese railways mainly adopt centralized signalling monitoring system to realize status monitoring and fault alarmming of signalling equipments.Centralized signalling monitoring system is an integrated monitoring platform for signalling equipment maintenance which plays an important role in monitoring equipment status,finding equipment hidden fault,analyzing equipment fault and assisting equipment maintenance.However,with the development of high-speed railway,the signal system is more and more complex,which causes a problem that centralized signalling monitoring system is slightly inadequate to do business logic judgment and intelligent analysis alarm in the whole signal system.Thus,comprehensive monitoring system is proposed.This thesis mainly focuses on the research of station alarm of comprehensive monitoring system.On the basis of reading a large number of literatures,according to the equipment monitoring information form computer interlocking system,station control center,ZPW-2000A monitoring subsystem,centralized traffic control system and centralized signalling monitoring system combined with the scene common fault,signalling equipment falut alarming rules are summed up with the method of comparative analysis,correlation analysis,logic analysis,etc.According to the structure of comprehensive monitoring system,the station software is built by the C#programming under the Windows platform,and the software is designed with the alarming demand as the core.Firstly,the thesis introduces the theory of comprehensive monitoring system from the aspects of structure and function.Secondly,alarming rules are introduced in detail,including ground equipment alarms,point/switch machine alarms,track circuit alarms and signal alarms,etc.Then the detailed design process of station software is introduced from the aspects of overall design,design of the functional modules and design of the database.Finally,a certain high-speed railway station is taken as an example to realize the station software.The station software is verified by the on-site data,and the results of each module are displayed.The falut-alarmming function is tested with the fault data and some testing results are displayed.