Mitsubishi Heavy Industries Limited

Ichiro Matsumoto

Hiroshi Nagai

Fumitoshi Sakata

Takehiro Kitta

Pradeepa Lakmal Wevita

Takashi Kuroishi

Hideki Tachibana

A diagnosis device for diagnosing a plant based on an operating state of the plant includes a monitoring data acquisition unit configured to acquire a plurality of monitoring data which are measurement values of a parameter related to the operating state of the plant measured at different times, a diagnosis target pattern generation unit configured to generate a diagnosis target pattern that is a plot pattern where each of the plurality of monitoring data is plotted against plant output data of the plant, and a pattern diagnosis unit configured to diagnose the plant based on the plot pattern of the diagnosis target pattern.

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Yokohama, Japan

Ichiro Matsumoto