摘要:
A method applied to a computer that determines a situation of a system includes the steps of: receiving measurement data from each of a plurality of measurement targets in the system; computing a plurality of sets of anomaly values based on the measurement data and a predetermined computation algorithm according to a plurality of classifications corresponding to a plurality of properties of each measurement target; and determining the situation of the system based on the sets of anomaly values and a predetermined determination algorithm.
摘要:
Provided is a system including sensors to measure objects to obtain first measurement values, respectively. A first server computes a correlation among the first measurement values based on the first measurement values. A proxy computes an actual measurement value of a second measurement value based on the first measurement values and a given function. A second server verifies the sensors by setting one or more sensors as verification target sensors in turn at predetermined timing. The second server computes a predicted value of the second measurement value based on the correlation and the first measurement values obtained from the other sensors except the verification target sensors among the plurality of sensors. The first or second servers and the proxy outputs the predicted value of the second measurement value instead of the actual measurement value thereof during the verification of the verification target sensors if an anomalous sensor is identified.
摘要:
A mechanism is provided to improve the availability of an ICS and an external system that uses data from the ICS by ensuring operation of the ICS and operation of the system even if an anomaly has occurred in a device in the ICS. The mechanism receives measured data from the plurality of devices, calculates prediction data by using the measured data and correlation information used for deriving prediction data for correlated devices, and provides the measured data and the prediction data.
摘要:
A method applied to a computer that determines a situation of a system includes the steps of: receiving measurement data from each of a plurality of measurement targets in the system; computing a plurality of sets of anomaly values based on the measurement data and a predetermined computation algorithm according to a plurality of classifications corresponding to a plurality of properties of each measurement target; and determining the situation of the system based on the sets of anomaly values and a predetermined determination algorithm.
摘要:
Provided is a method applied to a system including a plurality of sensors, a proxy, and a server. The method includes: measuring objects by the plurality of sensors to obtain first measurement values; computing a correlation among the first measurement values by the server based on the first measurement values; computing an actual measurement value of a second measurement value by the proxy based on the first measurement values and a given function; verifying the plurality of sensors by setting one or more sensors as verification target sensors in turn by the server at predetermined timing; computing a predicted value of the second measurement value by the server based on the correlation and the first measurement values obtained from the other sensors; and outputting the predicted value of the second measurement value instead of the actual measurement value thereof at least during the verification of the verification target sensors.
摘要:
A method, system and computer program product for creating, editing, and generating operating manuals utilizing scripts. Operations performed by an author during manual creation are saved as scripts. The operations are replayed when regenerating or modifying the manual. When replaying the script of the operating manual, the script may be stopped at convenient points to add additional operations and/or modifications. These additional operations and/or modifications are also recorded as scripts to enable generation of the edited/modified manual.
摘要:
A method, system and computer program product for creating, editing, and generating operating manuals utilizing scripts. Operations performed by an author during manual creation are saved as scripts. The operations are replayed when regenerating or modifying the manual. When replaying the script of the operating manual, the script may be stopped at convenient points to add additional operations and/or modifications. These additional operations and/or modifications are also recorded as scripts to enable generation of the edited/modified manual.