Information processing device, information processing method, and program

An information processing method comprising:

• receiving, by a computer, measurement values of state quantities measured by a plurality of measurement instruments;
• detecting, by a computer, a state quantity of which the value is temporal or spatial omission among state quantities to be processed as the target state quantity, on the basis of the plurality of measurement values of a target device;
• estimating, by the computer, each of a plurality of estimation values related to a target state quantity detected the omission by using a plurality of models for explaining the target device on the basis of the measurement values;
• calculating, by the computer, an of evaluation values with respect to each of the plurality of estimation values on the basis of a function that obtains the evaluation value which is a value of evaluation items of management of the target device from a value of the target state quantity;
• specifying, by the computer, each of a plurality of probabilities corresponding to the plurality of evaluation values on the basis of a probability distribution obtained in advance by a relationship between a plurality of evaluation values of the evaluation items and a probability of taking each of the plurality of evaluation values;
• and
• specifying, by the computer, the value of the target state quantity to be used for management of the target device on the basis of the plurality of estimation values and the plurality of probabilities;
• wherein the target device emits an exhaust gas during combustion, amount of emission of the exhaust gas is one of the plurality of estimation values, the amount of emission of the exhaust gas is obtained by using the plurality of models, the amount of emission of the exhaust gas is an unknown state quantity which is a state quantity having an unknown value on the basis of the function, and the unknown state quantity is not measured or predicted by the plurality of measurement instruments;
• the specifying, by the computer, the value of the target state quantity the management value specification unit includes specifying a value of the amount of emission of the exhaust gas as the specified value of the target state quantity;
• and
• the method further includes outputting a control signal to manage the target device by changing at least one of parameters selected from an output instruction value, an opening of an inlet guide vane (IGV), and a fuel flow rate on the basis of the measurement values and the value of the amount of emission of the exhaust gas.

A non-transitory computer-readable computer medium storing a program causing a computer to:

• receive measurement values of state quantities measured by a plurality of measurement instruments;
• detect a state quantity of which the value is temporal or spatial omission among state quantities to be processed as the target state quantity, on the basis of the plurality of measurement values of a target device;
• estimate each of a plurality of estimation values related to a target state quantity by using a plurality of models for explaining the target device on the basis of the measurement values;
• calculate an evaluation value with respect to each of the plurality of estimation values on the basis of a function that obtains the evaluation value which is a value of evaluation items of management of the target device from a value of the target state quantity;
• specify each of a plurality of probabilities corresponding to the plurality of evaluation values on the basis of a probability distribution obtained in advance by a relationship between a plurality of evaluation values of the evaluation items and a probability of taking each of the plurality of evaluation values;
• and
• specify the value of the target state quantity to be used for management of the target device on the basis of the plurality of estimation values and the plurality of probabilities;
• wherein the target device emits an exhaust gas during combustion, amount of emission of the exhaust gas is one of the plurality of estimation values, the amount of emission of the exhaust gas is obtained by using the plurality of models, the amount of emission of the exhaust gas is an unknown state quantity which is a state quantity having an unknown value on the basis of the function, and the unknown state quantity is not measured or predicted by the plurality of measurement instruments;
• the computer further processes to specify a value of the amount of emission of the exhaust gas as the specified value of the target state quantity;
• and
• the computer further processes to output a control signal to manage the target device by changing at least one of parameters selected from an output instruction value, an opening of an inlet guide vane (IGV), and a fuel flow rate on the basis of the measurement values and the value of the amount of emission of the exhaust gas.