列车通信网络可靠性评价技术研究

Research on Reliability Evaluation Method of Train Communication Network

列车通信网络技术作为列车核心技术之一,实现实时控制与各类信息的传递,列车通信网络的可靠性研究引起了广泛关注。根据列车通信网络的拓扑结构、设备可靠性、通信有效性以及可用性等特征,建立了针对列车通信网络的可靠性评价体系,利用层次分析法确定了各评价指标的权重,建立了列车通信网络可靠性指标隶属度函数,最后利用模糊综合评价法实现了列车通信网络可靠性的综合评价。通过算例分析表明该方法能够有效地评价列车通信网络的可靠性。

As one of the core technologies on the high-speed train, the train communication network can realize real-time control and information transmission, so the reliability of train communication network has been brought into focus. Considering topology, reliability of equipment, availability and usability of train communication network, an objective and reasonable reliability evaluation system was established. Analytic hierarchy process was used to determine the weights and membership function of each index, then fuzzy comprehensive evaluation method was used to evaluate reliability of train communication network. The example showed that this method could evaluate reliability of train communication network.