The Digital Control And Dynamic Physics Simulation System Of Marshalling Station Working Process

This thesis takes the transportation production process of the marshalling station as the research object,the cultivation of technical applying mannagement talents and perform science study to be the goal,so as to strengthen the teaching practice and improve students’ professional skills.With the idea of railway marshalling station work process,post settings and the human-computer interface form,it constructs the digital control and dynamic physics simulation system of marshalling station working process and studies the way of realizing it.This thesis analyzes and designs the digital control and dynamic physics simulation system of marshalling station working process by applying computer technology,database technology,control technology,wireless communication technology and so on.It is to realize the construction and integration of the hardware system,communication system,business control subsystem,in order to meet the professional training and teaching of railway transport.Firstly the thesis analysis the overall framework of system,divided the system into dynamic physical simulation platform,communication control subsystem and business control subsystem.The designed the vehicles,switches and signal in the dynamic physical simulation platform.Through analyzing the position equipment,the paper determine to use infrared technology for positioning and construct the hump subsystem induction network.In the communication control subsystem,in order to ensure the communication reliability and security of the entire system,the parameters and communication rules of the system-related communication devices are determined.In the business control subsystem,the data structure of the system is built and developed,which divided into basic data,control data and business data,the system data is divided into static data and dynamic data according to the data state for a detailed definition of the design,using the system data to throughly analyze the hump subsystem pushing and sliping control process.Secondly,based on the system data,hump subsystem route search is studied,and a reverse search algorithms based on Dijkstra and depth first search is established,to realize the establishment of hump subsystems route;In order to realize the disintegration of train in the system,an interval control model of hump-sliding train group is established on the basis of hump pushing and slipping,it is to achieve the safe free-flowing of the free-running train group.Finally,bulding the system software structure through programming,and the overall framework of the system is established,which realize the shunting route of artificial arrangement,rolling route automatically established,and realize pushing and sorting operation process.