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1. 发明申请

US20100094798A1 ANOMALY DIAGNOSIS SYSTEM FOR PASSENGER CONVEYORS 审中-公开
标题翻译：客运输送机异常诊断系统
公开(公告)号：US20100094798A1
公开(公告)日：2010-04-15
申请号：US12500169
申请日：2009-07-09
申请人： Tadashi SHUDO , Masaki Sakurai , Yasuaki Takeda
发明人： Tadashi SHUDO , Masaki Sakurai , Yasuaki Takeda
IPC分类号： G06N5/02
CPC分类号： B66B25/006 , G06K9/00771
摘要： Escalator operation sounds are collected by a remote sound-collecting device 15 or fixed sound-collecting devices 17 and 18, and stored in a data collecting device 21 of a diagnosis device 20. A processing device 22 extracts only abnormal sound components of the escalator operation sound by calculation of a difference between reference data and the sound data stored in the data collecting device 21. The processing device 22 determines an occurrence of an anomaly based on whether a maximum peak P of the abnormal sound components is higher than a predetermined threshold value Sh1. When determined that the anomaly has occurred, the processing device 22 investigates a correlation between a frequency analysis result on data around the maximum peak of the abnormal sound components and abnormal sound frequency patterns pre-stored by causes of anomalies, and estimates the cause of the anomaly based on the investigation.
摘要翻译：自动扶梯操作声音由远程收听装置15或固定声音收集装置17和18收集，并存储在诊断装置20的数据收集装置21中。处理装置22仅提取自动扶梯操作的异常声音分量通过计算参考数据和存储在数据收集装置21中的声音数据之间的差异来产生声音。处理装置22基于异常声音分量的最大峰值P是否高于预定阈值来确定异常的发生 Sh1。当判断为发生异常时，处理装置22调查由异常声音成分的最大峰值附近的数据的频率分析结果与由异常原因预先存储的异常声音频率模式之间的相关性，并估计出原因基于调查的异常情况。

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