发明授权
- 专利标题: Virtual limit switch
- 专利标题(中): 虚拟限位开关
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申请号: US13606499申请日: 2012-09-07
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公开(公告)号: US09133959B2公开(公告)日: 2015-09-15
- 发明人: Leo Minervini
- 申请人: Leo Minervini
- 申请人地址: CH Schaffhausen
- 专利权人: Pentair Flow Services AG
- 当前专利权人: Pentair Flow Services AG
- 当前专利权人地址: CH Schaffhausen
- 代理机构: Quarles & Brady LLP
- 主分类号: G08B21/00
- IPC分类号: G08B21/00 ; F16K37/00
摘要:
A method associated with a valve package having a process valve, an actuator and a controller. The method includes obtaining a baseline signature corresponding to opening or closing the valve as the valve moves from a first position to a second position. The method also includes obtaining an operating signature corresponding to values associated with the baseline signature each time the valve moves from the first position to the second position. In addition, the operating signature is compared to the baseline signature. The method further includes determining if one or more of the values associated with the operating signature is within an acceptable range from the corresponding one or more values in the baseline signature.
公开/授权文献
- US20140069508A1 Virtual Limit Switch 公开/授权日:2014-03-13
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