基于锁闭功率的地铁折返道岔锁闭卡阻临界态自适应判别研究  

Adaptive Discrimination of Metro Turn Back Switch Locking Jamming Critical State Based on Switch Machine Power

作　　者：文豪 毛珺芸 徐阳 WEN Hao;MAO Junyun;XU Yang(不详;Institute of Railway Communication and Signal,Wuhan Railway Vocational College of Technology,430205,Wuhan,China)

机构地区：[1]武汉铁路职业技术学院铁道通信与信号学院,武汉430205 [2]武汉地铁运营有限公司,武汉430019 [3]武汉铁路职业技术学院质量与教育教学督导管理处,武汉430205

出　　处：《城市轨道交通研究》2021年第10期205-209,共5页Urban Mass Transit

摘　　要：针对地铁折返道岔设备锁闭卡阻故障易发生但不易预判的问题,以S700K转辙机为研究对象,从统计学角度,基于锁闭功率建立自适应的锁闭卡阻临界态判别新机制。对锁闭卡阻故障前的锁闭功率变化行为进行了统计分析;提出基于循环Otsu的卡阻临界功率阈值自适应分割模型,依据临界阈值设计锁闭卡阻临界态判别应用场景方案;利用武汉地铁不同线路的多组道岔锁闭卡阻故障前后锁闭功率数据进行实证测试,验证了所提模型和方案的有效性。In view of the metro turn back switch locking jamming problems that are prone to happen but difficult to predict,the S700K switch machine is taken as the research objective,a new self-adaptive locking jam critical state discrimination mechanism is established based on switch machine power from a statistical point of view.Then,the switch machine power change behavior before the locking jam fault is statistically analyzed,an adaptive segmentation model for critical power threshold of jamming based on cyclic Otsu is proposed,the application scenario of jamming critical state discrimination is designed according to the critical threshold.Empirical tests of the data obtained from multiple groups of switch locking faults on different Wuhan metro lines are conducted,which verified the validity of the proposed model and scheme.

关 键 词：地铁 道岔锁闭卡阻 锁闭功率 临界态 自适应判别 

分 类 号：U213.67[交通运输工程—道路与铁道工程]