基于模糊熵和非对称贴近度的轨道电路分路不良故障预警系统

Early Warning System for Track Circuit Shunt Failure Based on Fuzzy Entropy and Asymmetric Closeness

轨道电路中,分路不良会对铁路运行的安全效率造成不良影响。针对ZPW-2000A轨道电路分路不良故障,设计一种基于模糊熵和非对称贴近度的故障预警系统。先确定该系统的预警指标及指标的可靠范围,使用无线传感器将指标数据传输到MySQL数据库中。采集的数据经过计算得出决策向量,并依据非对称贴近度原则确定该区段分路状态的安全等级,再使用上海局无锡站的实际案例进行系统准确性验证。案例结果表明,该系统可以准确预测出某区段分路状态的安全等级。

In the track circuit,poor shunts will adversely affect the safety and efficiency of railway operation.Aiming at the poor faults of the ZPW-2000A track circuit,a fault early warning system based on fuzzy entropy and asymmetric closeness is de-signed.Firstly,the early warning indicators of the system and the reliable range of the indicators are determined,and wireless sen-sors are used to transmit the indicator data to the MySQL database.The collected data is calculated to obtain the decision vector,and the security level of the branch state of the section is determined according to the principle of asymmetric closeness,and then the actual case of the Wuxi Station of the Shanghai Bureau is used to verify the accuracy of the system.The example show that this system can accurately predict the safety level of a branch state.