Kabushiki Kaisha Toshiba

Akiyoshi Sudo

Tsuneo Watanabe

Keiko Ootani

Kaoru Takahara

Hirokazu Ootsuka

Atsushi Matsumoto

Ayumi Sudo

Hiroaki Tonoyama

A plant monitoring apparatus according to an embodiment includes a determiner and a display processor. The determiner compares a first process value acquired in time series from a first point of a monitoring target in a plant and a limit value corresponding to the first process value to determine a time when the first process value exceeds the limit value. The display processor causes a display device to display, in time series, the first process value within a time range decided on the basis of the time obtained by the determiner and the limit value corresponding to the first process value.

Plant monitoring apparatus

In one embodiment, a plant monitoring system includes a threshold acquiring module, a judging module, and a warning module. The threshold acquiring module acquires in advance, based on a value obtained by leveling the dispersion in first process values corresponding to output values at a first point in a monitoring object and a value representing the dispersion, first thresholds representing a first range of the dispersion in the first process values and second thresholds representing a second range. The judging module compares the first process values chronologically acquired based on the output values at the first point with the corresponding first thresholds and second thresholds. The warning module creates alert information containing information on at least a time point when the first process value exceeds one of the first thresholds and the second thresholds.

Plant monitoring system, plant monitoring method, and program storage medium

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Fuchu, Japan

Akiyoshi Sudo