Process monitoring system, apparatus and method

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United States of America Patent

PATENT NO 9921575
SERIAL NO

13903394

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
YOKOGAWA ELECTRIC CORPORATIONTOKYO 180-8750

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kobayashi, Satoshi Musashino, JP 278 3266
Takahashi, Kimikazu Musashino, JP 8 54
Tanaka, Mihoko Musashino, JP 18 103

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