The invention relates to the technical field of rail transit, in particular to a heavy haul railway steel rail corrugation detection method and device, a storage medium and electronic equipment.The heavy haul railway steel rail corrugation detection method comprises the steps that wavelet packet decomposition is conducted on collected axle box acceleration signals, and multiple sub-signals are obtained; performing synchronous compression short-time Fourier transform on the plurality of sub-signals to obtain first time-frequency distribution; performing sub-band filtering on the first time-frequency distribution according to a pre-obtained filtering range to obtain second time-frequency distribution; performing time-frequency analysis according to the second time-frequency distribution to determine a maximum energy factor and an intensity factor corresponding to the maximum energy factor; and judging whether the corresponding intensity factor exceeds a preset intensity factor threshold value and whether the maximum energy factor exceeds a preset energy factor threshold value, and if the two conditions are met at the same time, judging that corrugation occurs. According to the method, the corrugation characteristics can be extracted more accurately to realize corrugation defect detection, and the stability is higher.
本申请涉及轨道交通技术领域,具体涉及一种重载铁路钢轨波磨检测方法、装置、存储介质及电子设备,包括:对采集到的轴箱加速度信号进行小波包分解,得到多个子信号;对多个子信号进行同步压缩短时傅里叶变换,得到第一时频分布;根据预先得到的滤波范围对第一时频分布进行分频带滤波,得到第二时频分布;根据第二时频分布进行时频解析确定最大能量因子以及与最大能量因子对应的强度因子;判断对应的强度因子是否超出预设的强度因子阈值且最大能量因子是否超出预设的能量因子阈值,若二者同时满足,则判断出现波磨。该方法能够更准确的提取波磨特征实现波磨缺陷检测,并且稳定性也更高。
Heavy haul railway steel rail corrugation detection method and device, storage medium and electronic equipment
重载铁路钢轨波磨检测方法、装置、存储介质及电子设备
2023-03-07
Patent
Electronic Resource
Chinese
IPC: | G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS / G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK , Messen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes |
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