Intelligent Decision Simulation Model Of Train Operation Based On Agent In Double-track Automatic Block Section

The operation and organization of railway in our country are very complicated.There are a lot of uncertain factors in the process of railway dispatching and commanding that interfere with the normal operation of trains.The dispatcher should adjust the train operation plan timely and effectively in combination with the current condition of the whole railway network to ensure the safety of the train and improve the efficiency of railway transportation.However,adjusting the train operation only through the dispatcher can not meet the requirements of realtime dispatching and the efficiency of dispatching is not very high.Therefore,it is of great practical significance to study the intelligent dispatching command and the intelligent decision of train operation.First of all,based on the analysis of the train operation characteristics of double track automatic block district,the concept and method of system simulation technology are introduced to provide ideas for train operation simulation.On this basis,the related concepts and general models of agents are introduced,and the concept of multi-agent system and the structure of multi-agent system are described in detail.At the same time,the methods of interaction and cooperation between multi-agent are introduced through the communication between multi-agent.Secondly,based on the theory of agent and the model of train dynamics,a train agent model which can make decision independently is constructed,and a railway route topological structure model based on node arc is established as the route environment of simulation.On the basis of the train agent,by analyzing the decision-making process of the train,the paper puts forward the judgment conditions under various decisions of the train agent,and establishes four kinds of intelligent decision model: the intelligent decision model of section tracking operation,the intelligent decision model of the train overtaking,the intelligent decision model of the occupation of the train arrival departure length and the intelligent decision model of the train operation under interference condition.Finally,the intelligent decision-making model of train operation is constructed under the environment of Anylogic.Taking the Shanghai Nanjing section of Beijing Shanghai high speed railway as an example,the simulation experiment is carried out on the basis of the actual train diagram to verify the function of the simulation model.The simulation train diagram shows that the simulation model can achieve the same ability as the actual operation diagram,thus verifying the validity and rationality of the intelligent decision simulation model.