The reliability design and allocation for train network control systems play a significant guiding role in evaluating the ad-vantages and disadvantages of different options,identifying weak links affecting system reliability,and promoting design improvements.This study analyzed reliability requirements for train network control systems and investigated theoretical technologies for calculations related to network topology reliability.On this basis,a network topology state transfer model for the redundant architecture of train net-work control systems was developed,and a mathematical expression for network topology reliability calculations was deduced from the Markov process.Furthermore,a scoring-based reliability allocation method for system components were proposed,considering multiple influencing factors,including complexity,technical development levels,importance,and environmental conditions.Finally,the proposed reliability calculation and allocation method for train network control systems was verified,based on inputs from practical applications.This approach has proven beneficial for topology design in train network control systems according to their RAMS allocation indexes in real-world projects and offers a basis for rationality demonstration of RAMS design.
关键词
列车网络控制系统/网络拓扑/可靠性计算/可靠性分配
Key words
train network control system/network topology/reliability calculation/reliability allocation
维普
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