| The development of high-speed railway is not only to adapt to the needs of the national transport economic development, but also the significant signs of railway modernization for our country. Because of the complex and diverse factors affecting train safety, it is not easy to fully prevent the occurrence of railway accidents through technical means depend on the current level of technology. Railway traffic signal equipment is an important measure of rail transport infrastructure, and it is also a critical equipment to guarantee the railway transport safety, improve transport efficiency and improve the working conditions.Firstly, this paper summarizes the current status of the development of railway station signal simulation system. Research on computer interlocking, train control center, station signal fault system and their interfaces. The design of signal fault system, digital railway signal construction, station model validation and other aspect needs are analyzed. Combined with the core concept of "Fault-Security", put forward rail transport train station signal failure simulation system. Feasibility analysis is done from structure, function, interface these three aspects in this paper.The paper designs the host computer software by visual studio development platform because of its outstanding interface and strong transplantation. The host computer software set computer interlocking, train control center and station signal fault system in one for the system requirements. The system invokes dynamic link library to control the driver board for data acquisition in the labor controlling machine, so as to collect the station signals and control the station signal logic; TCP network communication is used to receive the schedule from CTC, and the schedule is used for the train route information; The station signal information is forwarded to the RBC center through wireless device to provide permission for the train; Station signal fault simulation capabilities is added in the functional design to simulate the station signal fault. The system is highly integrated, have a few device interfaces and have a good demonstration effect.To prove the practicality of the system, this paper designs the embedded simulation train control system. STM32processor core is used for the system control requirements, after the peripheral circuits is designed, the simulation of the train schematic circuit is complete in the design; The PCB board design is completed according to the schematic; By welding, debugging and writing embedded software, to make the train control system operation, so as to achieve train speed control and collect accurately, and also realize two-way communication between locomotive and DMI.When the design of platform is completed, through the tests of functionality and stability, to ensure the platform achieving the desired functional requirements, and having a good display effect and stability. There are63pictures,23Tabs and47references in this paper. |
