A mill setup value determining device for a mill setup process for a rolling mill, the mill setup value determining device comprising:
- a mill setup value calculating device configured to obtain, as output, a mill setup value for a target rolled material by inputting, into a trained model, a manufacturing condition for the target rolled material and a mill setup value for a rolled material manufactured by the rolling mill before manufacture of the target rolled material, wherein
- the trained model is obtained by training a learning model with input comprising:
- manufacturing condition for the target rolled material;
- and
- mill setup values that are for the rolled material manufactured by the rolling mill before the manufacture of the target rolled material and that reflect setup value modification by an operator's manual manipulation, and
- output being mill setup values for the target rolled material;
- wherein
- the trained model includes:
- a first trained model obtained by training a learning model with input comprising:
- manufacturing conditions for the target rolled material;
- and
- mill setup values that are for a rolled material manufactured by the rolling mill before manufacture of the target rolled material and that reflect modification by an operator's manual manipulation, and
- output being mill setup values for the target rolled material;
- and
- a second trained model obtained by training a learning model with input being manufacturing conditions for the target rolled material, and
- output being mill setup values for the target rolled material, and
- the mill setup value calculating process includes:
- obtaining, as output, a first mill setup value for the target rolled material by inputting, into the first trained model, a manufacturing condition for the target rolled material and a mill setup value for a rolled material manufactured by the rolling mill before the manufacture of the target rolled material, if it is determined, on the basis of a predetermined determination condition, that using a previous mill setup value is appropriate;
- and
- obtaining, as output, a second mill setup value for the target rolled material by inputting, into the second trained model, a manufacturing condition for the target rolled material, if it is determined, on the basis of the predetermined determination condition, that using the previous mill setup value is not appropriate;
- and
- a control device configured to change a setting of the rolling mill with the obtained first or second mill setup value.