US 12,292,730 B2
Information processing device, evaluation method, and computer-readable recording medium
Ryosuke Kashiwa, Tokyo (JP); Toshiaki Omata, Tokyo (JP); Nobuaki Ema, Tokyo (JP); and Yoshitaka Yoshida, Tokyo (JP)
Assigned to Yokogawa Electric Corporation, Tokyo (JP)
Filed by YOKOGAWA ELECTRIC CORPORATION, Tokyo (JP)
Filed on Aug. 25, 2022, as Appl. No. 17/895,580.
Claims priority of application No. 2021-141673 (JP), filed on Aug. 31, 2021.
Prior Publication US 2023/0065835 A1, Mar. 2, 2023
Int. Cl. G05B 19/418 (2006.01)
CPC G05B 19/41835 (2013.01) [G05B 19/41865 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An information processing device comprising a processor configured to:
execute a mirror model to simulate behaviors of an actual plant while acquiring data from the actual plant and at the same time estimating a quantity of state that is not measured in the actual plant;
adjust an error between the mirror model and the actual plant by updating values of parameters and variables of the mirror model based on actual measured data of the actual plant;
execute a first simulation using the mirror model by using an actual operation that is executed by a worker in the actual plant as an input to calculate a first future operational state of the actual plant, thereby generating a first calculation result;
execute a second simulation using the mirror model by using each one of a plurality of virtual operations contained in each one of a plurality of operation pattern plans as an input to calculate a second future operational state of the actual plant, thereby generating each second calculation result; and
compare the first calculation result and the each second calculation result, thereby evaluating the actual operation that is executed by the worker.