US 12,066,817 B2
Method and system for manufacturing industrial goods using influence diagram mapped to maximum expected utilities
Kai Höfig, Rohrdorf (DE); Andreas Joanni, Munich (DE); and Marc Zeller, Munich (DE)
Assigned to Siemens Aktiengesellschaft, Munich (DE)
Appl. No. 17/257,776
Filed by Siemens Aktiengesellschaft, Munich (DE)
PCT Filed Jun. 25, 2019, PCT No. PCT/EP2019/066866
§ 371(c)(1), (2) Date Jan. 4, 2021,
PCT Pub. No. WO2020/007661, PCT Pub. Date Jan. 9, 2020.
Claims priority of application No. 18181825 (EP), filed on Jul. 5, 2018.
Prior Publication US 2021/0271233 A1, Sep. 2, 2021
Int. Cl. G05B 19/418 (2006.01); G06N 7/01 (2023.01)
CPC G05B 19/41875 (2013.01) [G06N 7/01 (2023.01); G05B 2219/32368 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method of manufacturing industrial unit goods in a production process, the method comprising a plurality of subsequent automated production steps, wherein the method includes:
a. identifying and choosing a selection of two or more of a plurality of potential production steps forming the specific production process suitable for the unit good to be manufactured;
b. defining and establishing a specific utility criterion for the production process, wherein the specific utility criterion includes a parametrization of achieved product quality;
c. selecting and respectively assigning a suitable quality assurance measure to at least one of the production steps and integrating the quality assurance measure into the production process;
d. dynamically assessing each of the production steps and its respective quality assurance measure whereby at least one of probability and utility values related to each of the respective production steps are obtained;
e. dynamically assessing the production process as a whole by applying a decision-theoretic-approach-based assessment to the probability and/or utility values obtained from the production steps and its quality assurance measure, respectively, in order to provide an optimized value of the specific utility criterion;
f. performing at least one of the quality assurance measures based on the optimized value of the specific utility criterion;
g. obtaining at least one target product as a result of the production process performed with the optimized specific utility criterion,
wherein the optimization problem of the respective production process to be solved with the decision-theoretic-approach is modeled by an influence diagram; and wherein the influence diagram associated with the respective production process is mapped to probability and utility tables as well as to resulting maximum expected utilities.