In an abnormality detection device, a sound signal acquisition unit 13 connected to a passenger conveyor 1 converts a sound wave around inspection guide shoes attached to steps into a sound signal during a prior manual operation performed in a procedure for abnormality detection processing. A sound signal analysis unit 14 analyzes a sound signal and extracts a sound pressure or a main frequency therefrom and transmits the extracted sound pressure or main frequency to a control device 15. The control device 15 functions as a commanding unit that gives a command for an operation to run the stepsand also functions as an abnormality determination unit that determines abnormality in skirt guards on the basis of the sound pressure or main frequency extracted by the sound signal analysis unit 14. The sound signal analysis unit 14 in this case analyzes a sound signal acquired by the sound signal acquisition unit 13 in a state where the steps are running by the command from the commanding unit, to extract the sound pressure or the main frequency.
在异常检测装置中,与乘客输送机(1)连接的声音信号取得部(13)在按照异常检测处理的步骤来进行事先的人工作业时,将安装于梯级的点检用导靴周围的声波转换为声音信号。声音信号解析部(14)对声音信号进行解析,提取声压或主频率并发送给控制装置(15)。控制装置(15)除了具有作为指示用于使梯级行进的运转的指令部的功能之外,还具有作为异常判定部的功能,其中,所述异常判定部根据由声音信号解析部(14)提取出的声压或主频率来判定裙板的异常。这里的声音信号解析部(14)对在指令部使梯级行进的状态下由声音信号取得部(13)取得的声音信号进行解析,提取声压或主频率。
DEVICE FOR DETECTING ABNORMALITY IN PASSENGER CONVEYOR
乘客输送机异常检测装置
2021-01-12
Patent
Elektronische Ressource
Chinesisch
IPC: | B66B Aufzüge , ELEVATORS |
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