发明名称 |
Process monitoring system, device and method |
摘要 |
A process monitoring system includes: a plurality of field devices configured to measure state quantities in an industrial process implemented in a plant; a trend calculation unit configured to determine the variation trend of the state quantities based on time-sequence data output from each of the plurality of field devices and classify each of the variation trends of the state quantities into one of a pre-established plurality of statuses; a state change judgment unit configured to judge the existence or non-existence of a pre-indicator of a change in the plant state, in accordance with the existence or non-existence of a change in at least one of the statuses classified by the trend calculation unit; and a notification unit configured to notify of judgment results of the state change judgment unit. |
申请公布号 |
EP2669757(A3) |
申请公布日期 |
2017.02.22 |
申请号 |
EP20130168964 |
申请日期 |
2013.05.23 |
申请人 |
Yokogawa Electric Corporation |
发明人 |
Kobayashi, Satoshi;Takahashi, Kimikazu;Tanaka, Mihoko |
分类号 |
G05B23/02;G05B19/418 |
主分类号 |
G05B23/02 |
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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