Fault Tree Method For Jing-guang Speed Railway Failure Analysis And Develop Countermeasures

Jing-Guang high-speed railway was the CTCS- level 3 train control system, the system can meet the demand of the development of high-speed railway in China, is the highest level of security in our country at present, with the most advanced technology and equipment and applies to more than 300 kilometers per hour of high-speed railway train operation control system. Beijing-guangzhou high-speed railway belongs to the special line for passenger transport, signal equipment failure influence across the transportation efficiency, and cause bad social influence, therefore all use high reliability design, by means of a large amount of redundancy, to ensure that a single set of equipment malfunction alarm only and does not affect the normal use of signal equipment. But in beijing-guangzhou high-speed railway signal system in the process of using, gradually expose influence the reliability of the system is weakness, it is necessary to find out the weak link, system may be down and formulate relevant measures to reduce its impact, or eliminate the fault.This paper adopt the fault tree analysis methods to analyze the influence of the reliability of the system of weak links, and adopt corresponding measures to the system to reduce the possibility of failure loss to a minimum. This paper first introduces the concept of reliability and fault tree analysis, emphasis on the advantages of the fault tree analysis, expression and content such as a builder, and the detailed study on the qualitative and quantitative analysis; Second, focus on the beijing-guangzhou high-speed railway signal system equipment, network and interface principle, and the use of the analysis of process found problems; Third, build up the fault tree, analyzed factors affecting the reliability of the system and link, and through the qualitative analysis to reduce system reliability events, the minimum cut set; Finally, according to the minimum cut sets for the bottom events(equipment) containing and solution, corresponding countermeasures respectively, and fundamentally improve the reliability of system, ensure the safety of the beijing-guangzhou high-speed railway train operation, efficient and comfortable.