Simulation Design And Implementation Of CTC Train Operation Dispatching Subsystem

In recent years,China’s railway has developed rapidly,especially in high-speed railway.Its operating mileage has reached more than 22,000 km,ranking first in the world.At present,the CTCS-3 train operation control system is mainly used in our country’s high-speed railway,and with the improvement of the system’s requirements,in-depth study and research of the CTCS-3 train operation control system is particularly important.Based on the project Beijing-Shanghai high-speed railway CTCS-3 train control simulation system,the CTC train operation dispatching subsystem was designed and developed in this thesis.The high-speed railway signal system was used as the basis in this project,and a semi-physical simulation platform was built.Through simulating the operation scenarios of Beijing-Shanghai high-speed railway,the workflow of high-speed railway signal system was showed in this thesis.In this thesis,the current situation of research and application of train operation dispatching system at home and abroad was summarized,the system structure of the project Beijing-Shanghai high-speed railway CTCS-3 train control simulation system was briefly introduced,the position and function of the CTC train operation dispatching subsystem was clarified.According to the requirements of this project,the functional requirements of CTC train operation dispatching subsystem were analyzed in this thesis,then the system was divided into 10 modules,including user management module,train operation diagram editing module,scheduled plans module,stage plans module,dispatch command module,temporary speed restriction module,train time reporting module,control mode module,database module and communication module.In order to fulfill the basic functions of CTC train operation dispatching subsystem,the C#programming language and Visual Studio was used in this thesis to develop and design the system In this thesis,the MySQL database was used to manage the data of the system,and the TCP/IP communication protocol was used to exchange the information between CTC train operation dispatching subsystem and other subsystems.The accomplished functions of CTC train operation dispatching subsystem includes:(1)Editing train operation diagram,such as draw lines,move lines,delete lines,combine trains,disintegrate train,change the train routes etc.(2)Send train operation plans,dispatch commands and temporary speed restriction commands to each related stations.(3)Receive time reporting information and feedback information from the stations.(4)Monitor and display network connection status and control mode of the station subsystem.(5)Other auxiliary functions,such as user login,change the password,scheduled plans,display the train timetable and punctuality information of the train etc.In order to verify the stability and practicability of the system,several core functions of the CTC train operation dispatching subsystem were tested in this thesis,and this system was applied in the Beijing-Shanghai high-speed railway CTCS-3 train control Simulation system,debugged together with other subsystems.The test results show that the CTC train operation dispatching subsystem designed in this thesis satisfies the expected demand.