The Design And Implementation Of ATS Sand Table Teaching And Presentation

With the development of urban rail transit system, signal system’s management is becoming more and more important, it’s affect the safety and efficiency of system directly during operate. China uses ATC system that is real-time computer control as urban rail transit’s signal control system, as core component, ATS is responsible for supervision, controlling and managing the train’s operation.This paper describes the functions, principles, history and current situation of ATS, associated with real circumstances of Kunming University city Station and University South station, designs the ATS sandbox demonstration system, which combined with a professional sand table, designed and built rail traction power supply laboratory for the training of relevant staff.This paper demonstrates the following work:Firstly, illustrate ATS system from simulation and teaching aspect, while designing the structure of ATS sandbox demonstration system, analyzes the various requirements for each subsystem to do a modular analysis, clarify the data flow and function support.Secondly, utilize object-oriented programming to implement simulation and teaching system, which includes:(1) ATS simulation subsystem is the core component of simulation system. The paper demonstrates the building of database, communications of teaching system and trainer system, to fulfill the needs for the system.(2) Computer Interlocking system, as the subsystem which ensures the security of ATS, computer interlocking system’s function is described by illustrating the monitor and control of the trains, turnouts, rails circuits and signals of sandbox and whole system, then, upload the statue data to interlock program to test lock relationship,(3) Develop train teaching subsystem based on teaching system. Offer fault release, operation monitoring, and playback functions.lt can help trainers teaching and presentation.Third, this paper briefly introduced the build of hardware of system--sandbox platform. It is introduced start from choosing equipment and collecting status data, to structure of sandbox platform, mainly illustrates signal system and interface circuit.