快速形状上下文算法在道岔控制电路故障诊断中的应用

Application of fast shape context algorithm in fault diagnosis of switch control circuit

针对道岔控制电路故障诊断方法相对落后这一问题,将理论研究和实物研发相结合,设计一种基于快速形状上下文算法的道岔控制电路故障诊断系统。系统通过子模块上传的电流数据作为支撑,对微机监测系统中S700K转辙机正常电流和8条典型异常电流曲线使用二维数组的方式存储形成数据库,使用X2分布计算待匹配曲线与数据库曲线的匹配代价。根据该值的大小判断道岔控制电路的工作状态,实现道岔控制电路故障智能诊断。经实例分析和系统测试,该方法可以有效地运用于道岔控制电路故障智能识别中,具有一定的实用价值。

Aiming at the problem that fault diagnosis method of switch control circuit is relatively backward,a fault diagnosis system for switch control circuit based on fast shape context algorithm was designed by combining theoretical research and practical research.The system used a two-dimensional array to store the normal current and eight typical abnormal current curve data of S700K switch machine uploaded by the sub-module in the microcomputer monitoring system to form a database,the X2 distribution was used to calculate the matching price between the curve to be matched and the database curve.According to the size of this value,the working state of the switch control circuit was judged to realize fault intelligent diagnosis.The case analysis and system test show that the method can be effectively applied to the fault intelligent identification of switch control circuit and has certain practical value.