Research On The Safety Assistant Recognition Method Of Shunting Yard Based On Graph Structure And Message Passing

Safety is the lifeline of railway.The marshalling station is the core part of railway transportation,and the shunting yard is the core area of the marshalling station,which is responsible for the sorting of a large number of trains.In recent years,although the safety of marshalling station has been improved,due to uncontrollable factors in personnel and equipment,there are still many malfunction and accidents every year,which seriously affect the safety of shunting yard.This paper will explore a safety assistant recognition method for the shunting yard based on graph structure of complex network and message passing model.The main work of this paper includes the following content.Firstly,based on the theory of graph structure,the model of the cause of malfunction and accidents and the emergency treatment process in the shunting yard is completed.Through the investigation and analysis of the common types of accidents in the shunting yard,it is concluded that emergency parking is the most basic emergency response method for various shunting accidents in the shunting yard.Secondly,on this basis,for emergency parking,the most basic emergency response method of the shunting yard,basic graphs of the emergency response method of the shunting yard is constructed.At the same time,in order to comprehensively consider the whole process from hidden dangers to accidents and emergency response,local graphs of the causes of various accident types in the shunting yard are constructed.Finally,basic graphs are combined with local graphs,so that the cause of the accident and the emergency response are related to each other to form a calculation graph,so as to use the message passing method to conduct a comprehensive and quantitative analysis of the emergency response problem.Thirdly,based on network structure information,network connection information and network node information,the passing rules and the representation of the passing logic relationship are defined.Taking the message passing model of turnout malfunction and the message passing model of equipment inspection as examples,this paper builds message passing modelsFinally,this paper uses the graph structure and message passing models to simulate the emergency response process of accidents and identify the weak links of the emergency response process.In this way,the system robustness analysis such as the importance ranking of staffs and processing procedures are realized,and a scientific basis is provided for the targeted management of key procedures and key staffs involved in daily operations.