Yokogawa Electric Corporation

Mihoko Tanaka

Satoshi Kobayashi

Kimikazu Takahashi

Hiroshi Iriguchi

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.

Process monitoring system, apparatus and method

A manipulation monitoring device includes a first storage unit that stores screen information of a manipulation monitoring screen prepared for each manipulation monitoring area of a plant, a second storage unit that stores relevance information indicating logical relevance of process elements constituting a process realized in the plant, a display unit that displays the manipulation monitoring screen according to the screen information stored in the first storage unit as a first manipulation monitoring screen, a search unit that searches the first storage unit based on the relevance information stored in the second storage unit to obtain the screen information related to the first manipulation monitoring screen displayed on the display unit, and a display control unit that performs display control to cause a second manipulation monitoring screen according to the screen information obtained by the search unit to be displayed on the display unit with the first manipulation monitoring screen.

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Musashino, Japan

Mihoko Tanaka