Study On Computer-aided Design System Of Railway Interval Signalling Layout

The railway signaling system is a piece of essential technical equipment for the railway to ensure the safety of train operation and improve the efficiency of train operation.The layout of the railway interval signaling is to divide the occlusion partition,which is the technical basis to ensure the operation’s safety.The traditional layout method is complicated,and the design review and audit are cumbersome;especially in the current situation of using ATP for train control,the shortage of the traditional layout method is more prominent.Therefore,it is vital to research the computer-aided design system of railway interval signaling layout.In this paper,based on the study of the theory and system design practice of railroad interval signaling dispatching at home and abroad,the relevant theoretical knowledge is systematically organized,the process and characteristics of railroad interval signal dispatching are analyzed,and the critical technology of railroad interval signal dispatching auxiliary design system is proposed.Based on this,the system requirements are determined,then the system design is carried out,and the system’s physical and conceptual design scheme is proposed.The main research contents and results of the thesis include:1.Basic theoretical research of railroad interval signaling dispatching.The process and basic theory of railroad interval signaling dispatching are studied,from the traction calculation of trains,generation of ATP control curve of high-speed trains,calculation of train braking distance,calculation of train tracking interval time,to the setting of the target function of interval passing signaling dispatching.The speed-control-curve calculation model generated by ATP of the high-speed railroad is elaborated in great detail.2.Study on critical technology of railway interval signaling layout computer-aided design system.The thesis summarizes the strategy of railway interval signaling dispatching ahead and behind the phase break and neutral section,proposes the energysaving post-optimization strategy of the train traction calculation over railway interval signaling layout problem,proposes the Genetic Algorithm model for the railway interval signaling dispatching problem.3.The requirements analysis and design of railroad interval signaling layout computer-aided design system.The user requirements and system design are studied in conjunction with the software development life cycle.The user requirements are sorted and summarized for the system requirement analysis,and the data requirements and system functional requirements in the use process are analyzed.In terms of system design,the system requirements and software design logic are combined to analyze the overall software structure,the physical design of the data subsystem,and the functional design of each functional subsystem.The system implementation is presented through a typical working process,and focuses on the implementation of the railway interval signaling dispatching model basing on Genetic Algorithm.