Research On Signal Simulation In The Testing System Of The Automation Train Operation (ATO) In Urban Rail Transit

With the development of urban rail transit, people have made great efforts to imp rove the train capacity, and one of the most important techniques is Automatic Train Control (ATC) system. As an important component of ATC system, ATO (Automatic Train Operation) system is the basis of train automatic drive in urban rail transit. It als( can improve efficiency and reduce energy consumption. At present, domestic urbar rail transit ATC system mainly relies on the introduction of equipment and technology from abroad, so ATO system research and development is not only for self-owned pro )erty rights for urban rail transit ATO system, but also for creating basic conditions for urban rail transit ATC system development.It is very integrant to offer assistant work bench and testing system to the ATO system development by simulating the drive modle and the environment modle. And the transmission of the signal between the ATO system with other equipment, environment modle and testing system is the basis of the ATO system.Firstly, this thesis researches on the elements of ATO equipment and the mode of signal transmission of signal in important function, then confirms the simulation task. Secondly, constructing the work bench for the signal simulation, which including LabVIEW software ang PXI hardware. Lastly, this thesis researches on the design of how to realize the signal simulation with Virtual-Instrument and validates the effect of the signal simulation by analyzing the testing result of the ATO testing system.This research of the signal simulation in ATO testing system assist the ATO system and other equipment running well in the laboratory, and it is the basis of the ATO testing system.