The Research And Simulation Of Main Line Switch Control System Of Modern Tram

With the continuous development of science and technology,the present situation of traffic congestion and smog increasingly prominent,the development of urban rail transit has obtained the rapid changes.As an important part of urban rail transit tram,the tram burdened with the task easing urban traffic pressure,reducing the index of the city pollution and making a convenience for public transportation.Main line switch control system of tram is one of the key subsystems of modern tram signal system,playing an important role to guarantee tram running safety and improve the running efficiency.The mode of main line switch control,the design and layout scheme of wayside switch controller,the precise positioning of main line switch area and wireless communication technology of main train-ground are the key technology of switch control system,there are still some deficiencies and defects.Therefore,the paper studies,simulates and verifies the key technology of modern tram's main line switch control system,and puts forward the feasible solution.Based on the domestic and foreign research and application status of the tram's main line switch control system,this paper puts forward a new vehicle switch control scheme.Design the wayside switch controller of all-electronic structure and reduce the intensity of maintenance work.Compare and analysis two kinds of schemes of the track side switch controller,determine the optimal setting scheme and improve the security of the system.The paper studies the commonly positioning method of main line switch control system and the train-ground wireless communication technology,puts forward the high-precision combination positioning and high-performance wireless communication technology,analyzes and illustrates the function and configuration,working principle and arrangement of the two layout schemes.Further from the aspects of environment,economy and technology,this paper studies the feasibility of system solutions,the results show that the scheme can not only solve the problems of key technologies,but also has advanced and mature technology and the very good feasibility.This paper analyzes the basic security functional requirements and control process for tram main line switch control system of all-electronic from the operation,working situation and working process,and divides the layers of system.Divide the module for the basic function of interlocking and auxiliary function according to the layer and function of the system,expound the function of each module in detail,and study the basic function of interlocking control process.Analysis and modular of system interlocking logic not only makes the system more transparent and pellucid,but also lay the foundations for the later development of the system software.Analysis and modular of system interlocking logic not only makes the system more transparent and pellucid,but also lays the foundations for the later development of the system software.The paper,based on the function of each module and the software design basic principle,analyzes system software structure.The properties and methods of the same module is divided into the same object class.Analyze the data flow of each object class,and describe the method and attribution.In the end,the basic function and status display function of the modern tram main line switch control system are simulated.Finally,to verify the integrity,the correctness and the usability of the scheme and the software,the system is verified by setting the fault scenarios.Verification results show that the system solutions and software function are integrated,have correct interlocking logic and higher usability.