公开(公告)号：US20100073163A1

公开(公告)日：2010-03-25

申请号：US12594266

申请日：2008-03-26

申请人： Seedahmed Mahmoud ,  Colin Kemp ,  Alexander Adams ,  Jim Katsifolis

发明人： Seedahmed Mahmoud ,  Colin Kemp ,  Alexander Adams ,  Jim Katsifolis

IPC分类号： G08B21/00 ,  G06F15/00

CPC分类号： G08B13/186 ,  G08B29/185 ,  G08B29/26

摘要： A system and method for monitoring a structure and for distinguishing between an alarm condition, and a nuisance event such as rain. An optical fibre sensor (20,22) produces a signal indicative of a disturbance and level crossing rates are determined to distinguish between noise in the signal (nuisance event) and a required event. A FFT technique is also disclosed as well as classification of an event by extracting predetermined features from the signal.

摘要翻译： 用于监视结构并区分报警状况以及诸如雨的妨扰事件的系统和方法。 光纤传感器（20,22）产生指示干扰的信号，并且确定电平穿越速率以区分信号（烦扰事件）中的噪声和所需事件。 还公开了FFT技术以及通过从信号中提取预定特征来对事件进行分类。

公开(公告)号：US08704662B2

公开(公告)日：2014-04-22

申请号：US12594266

申请日：2008-03-26

申请人： Seedahmed Mahmoud ,  Colin Kemp ,  Alexander Adams ,  Jim Katsifolis

发明人： Seedahmed Mahmoud ,  Colin Kemp ,  Alexander Adams ,  Jim Katsifolis

IPC分类号： G08B13/08

CPC分类号： G08B13/186 ,  G08B29/185 ,  G08B29/26

摘要： A system and method for monitoring a structure and for distinguishing between an alarm condition, and a nuisance event such as rain. An optical fibre sensor (20,22) produces a signal indicative of a disturbance and level crossing rates are determined to distinguish between noise in the signal (nuisance event) and a required event. A FFT technique is also disclosed as well as classification of an event by extracting predetermined features from the signal.

摘要翻译： 用于监视结构并区分报警状况以及诸如雨的妨扰事件的系统和方法。 光纤传感器（20,22）产生指示干扰的信号，并且确定电平穿越速率以区分信号（烦扰事件）中的噪声和所需事件。 还公开了FFT技术以及通过从信号中提取预定特征来对事件进行分类。