Study On Railway Station Operataion Simulation Technology

System silulation is effective method to study railway station operation process.Based on research achievement of railway station operation organization theory, system engineering, optimization theory, system simulation theory, Petri nets, artificial intelligence, software engineering, this thesis studied the relevance method and technology of railway station operation system simulation.With the view of building railway station operation simulation system, the railway station operation system is analyzed, the modeling method of railway station yard is studied, railway station overall simulation model and railway station arrival-departure system simulation are built and passengers station simulation system and mashalling station operation education simulation system are developed based on such models. The contents of the thesis include the following several aspects mainly:(1) Based on the current research situation and existed relevant product of railway station simulation analysis, system engineering and system simulation speciality of railway station is studied, yard-oriented railway station system partition is given. Railway staion simulation designing and developing idealogy is presented based on software demand analysis;(2) When focus on the problem of railway station yard modeling, the digraph method and undigraph method in existed study of railway station operation relevant problem are summarized. Then, a new method, routes conflict graph is presented to model the railway station yard. The data structure of digraph, undigraph and routes conflict graph is also studied.(3) With the definition of train token, route token and yard line token, A generality timed colored Petri net model is built to simulate the railway station arrival-departure system, the structure of such a model will never change when face to different railway station yard layout, Then the routes conflict graph is combined with the Petri net to realize the optimation of railway staion operation process.(4) Based on the multi agent system theory and method, the railway station overall simulation model is studied, railway station multi agent system is consisted of environment agent, station dispatcher agent, plant equipment management agent, watcher agent, assistant dispatcher agent, mobile equipment management agent, locomotive agent and train agent, and the design of each agent is given.(5) According to the timed colord Petri net and routes conflict graph combined model, the passengers station generized simulation system is developed and a simulation case is given.(6) The railway station multi agent simulation model which designed by the author is applied in the mashalling station operation education simulation platform construction project, and the introduction of this platform is given.Aimed at developing an integrated railway station operation simulation system, this thesis presented a full-scale analysis of railway station operation system simulation, and the solution of several basic and key problems is given, expect to support the railway station operation simulation with proper theory and method. With the mentioned method, attempt of building a complete railway station simulation system is made and substantive results are achieved.