The invention discloses an elevator steel wire rope magnetic flux leakage signal identification method and system, and relates to the technical field of steel wire rope broken wire detection, a steel wire rope model is constructed, and the steel wire rope model comprises abnormal state characteristics of various steel wire ropes in different damage length states and normal state characteristics of the steel wire ropes; extracting magnetic field signals of various steel wire ropes in different damage length states; drawing various steel wire rope abnormal state curves of which the magnetic field signal intensity changes along with different damage lengths from horizontal and vertical directions, and extracting key characteristic values; and constructing a steel wire rope magnetic flux leakage identification model based on the three decision classifiers, and classifying and identifying the abnormal state of the steel wire rope. On the basis of an existing elevator structure, whether the state of the steel wire rope is abnormal or not is judged by detecting and analyzing signal fluctuation, then the wire breakage condition of the steel wire rope is determined, safe use of the steel wire rope is guaranteed, and safety risks caused by wire breakage of the steel wire rope are reduced.
本发明公开了一种电梯钢丝绳漏磁信号识别方法及系统,涉及钢丝绳断丝检测技术领域,构建钢丝绳模型,钢丝绳模型包含不同损伤长度状态下各类钢丝绳的异常状态特征以及钢丝绳的正常状态特征;提取不同损伤长度状态下各类钢丝绳的磁场信号;分别从水平和垂直方向上绘制磁场信号强度随不同损伤长度变化的各类钢丝绳异常状态曲线,提取关键特征值;基于三支决策分类器构建钢丝绳漏磁识别模型,对钢丝绳的异常状态进行分类识别。本发明在现有电梯结构的基础上,通过检测和分析信号波动来判断钢丝绳的状态是否异常,进而确定钢丝绳断丝情况,保证钢丝绳的安全使用,降低因钢丝绳断丝导致的安全风险。
Elevator steel wire rope magnetic flux leakage signal identification method and system
一种电梯钢丝绳漏磁信号识别方法及系统
2024-06-07
Patent
Electronic Resource
Chinese
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