发明名称 |
A DEVICE AND METHOD FOR MONITORING A TOOL |
摘要 |
A device (100) and a method for determining and counting operations of a tool equipped with a mechanism that produces vibration upon operation to a predetermined value. The device comprises: a sensor (120) for detecting vibration and emitting a detection signal based upon the vibration; a mounting arrangement (116,117,118) for mounting the sensor (100) to a tool in such manner that vibration is transmittable from the tool to the sensor; a microcontroller (130) for receiving a detection signal from the sensor and determining and counting operations of said tool. The microcontroller calculates a second order derivative of a filtered detection signal and determines operation to the predetermined value based on analysis of the second order derivative signal. The microcontroller may perform the analysis by seeking a peak value of the second order derivative signal over a threshold or, alternatively, by seeking a specific shape of the second order derivative signal. |
申请公布号 |
WO2017021984(A1) |
申请公布日期 |
2017.02.09 |
申请号 |
WO2015IT00192 |
申请日期 |
2015.07.31 |
申请人 |
STANLEY WORKS (EUROPE) GmbH;POLITECNICO Dl MILANO |
发明人 |
CIGADA, Alfredo;SAUNIER, Laurent;ZAMBON, Marco |
分类号 |
B25B23/14;B25B23/142;G01M13/00 |
主分类号 |
B25B23/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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