基于动态故障树的交通信号灯监测系统故障分析  

Fault Analysis of Traffic Signal Monitoring System Based on Dynamic Fault Tree

作　　者：张宇轩 马增强[2,3] 远松灵 ZHANG Yuxuan;MA Zengqiang;YUAN Songling(School of Traffic and Transportation,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;Hebei Provincial Collaborative Innovation Center of Transportation Power Grid Intelligent Integration Technology and Equipment,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;School of Electrical and Electronic Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China;Jinghua Industrial Limited Company,Shijiazhuang 050200,China)

机构地区：[1]石家庄铁道大学交通运输学院,河北石家庄050043 [2]石家庄铁道大学河北省交通电力网智能融合技术与装备协同创新中心,河北石家庄050043 [3]石家庄铁道大学电气与电子工程学院,河北石家庄050043 [4]京华电子实业有限公司,河北石家庄050200

出　　处：《国防交通工程与技术》2024年第4期27-30,56,61,共6页Traffic Engineering and Technology for National Defence

基　　金：河北省高等学校科学技术研究项目青年基金(QN2020155)。

摘　　要：针对交通灯故障无法及时处理影响交通效率与安全的问题,设计了基于ZigBee技术的监测终端,根据监测系统中部件发生故障的时序关系建立动态故障树模型,分别采用二元决策图法BDD(binary decision diagrams)和马尔科夫模型对静态子树和动态子树进行定量分析,确定监测系统底事件对系统整体的概率重要度,计算得到导致交通灯故障的主要原因为光纤传感器位置移动和灯珠寿命到期。使用动态故障树法设计交通灯监测系统为工作人员快速分析故障原因提供了理论依据。The delayed resolution of traffic light malfunctions can significantly impede traffic efficiency and compromise safety.To address this critical issue,this paper introduces the design of a monitoring terminal leveraging ZigBee technology.A dynamic fault tree model is established according to the chronological sequence of component faults in the monitoring system.The static and dynamic subtree are quantitatively analyzed using Binary Decision Diagrams and Markov Models,respectively.This analysis determines the probability importance of the bottom events in the monitoring system to the whole system.It reveals that the primary causes of traffic light malfunctions are the displacement of optical fiber sensor and the expiration of lamp bead lifespan.The design of the traffic light monitoring system using dynamic fault tree method providing a theoretical foundation for staff to swiftly analyze the causes of faults.

关 键 词：交通信号灯 故障监测 算法设计 ZIGBEE 动态故障树 静态故障树 

分 类 号：TP183[自动化与计算机技术—控制理论与控制工程] TP277[自动化与计算机技术—控制科学与工程]