Research On Reliability Of Existing Railway Train Dispatch System Under Abnormal Condition

Operational safety of rail transport is the eternal pursuit, as a daily rail transport organization of the command center, railway traffic control system must be reasonable distribution of passenger and freight transport capacity organization of transport, on the basis of daily passenger and freight transport and ensure transportation of materials on key national efforts to improve transport services quality. To ensure the safe and smooth transportation and production has an important responsibility.With integrated rail transport system reform forward, fast transportation, timeliness is an important direction of reform, but also improve the quality of transport services important indicator. However, China is still far from the existing railway transport capacity can not meet the needs of passenger and freight transport, the flow of goods assembled uncertainty gave Transportation Production scheduling command work to bring higher requirements. Train dispatching systems are subsystems railway scheduling system is the core part of the scheduled work. It is to ensure transport safety, to prevent accidents and to improve the efficiency of an important part of income. Trains scheduled work involves numerous manufacturing sector and workers, production environment is complex, huge equipment, personnel, management, environmental and other factors are all effect the train schedul. In particular, non-normal conditions of transport production complex operating environment, numerous confounding factors, rather than work under normal circumstances Dispatching Scheduling System is also important and difficult, it is the weak link in the system. Improper disposal of non-normal conditions, ranging from transportation situation caused disorder or transport disruptions, while lead to accidents, loss of lives and property.In this paper, the existing railway dispatch command of the situation and characteristics, based on the reliability theory scheduling system reliability are defined in an irregular situation, through case summed abnormal situations common problems, scheduling system model train run adjustment, scheduled command system combines reliability analysis unit. By establishing the reliability of the model to assess the reliability of the whole train dispatching system under abnormal conditions.In Train Dispatching System Analysis influence factor on the basis of reliability, security systems engineering ideas to design a safety management model in an irregular situation, to build a flowchart for the security management processes from the point of view. Valuable management recommendations proposed by the disposal of non-normal analysis of specific cases.