Digital Triplet and its Implementation on Learning Factory

To support engineers in cyber-physical production system (CPPS), we propose the ‘digital triplet’ (D3) concept consisting of physical, cyber, and intelligent activity worlds. This study presents a prototype system of our D3 type learning factory for embodying the D3 concept and verifying its potential. Specifically, we propose a method for structurally describing engineering processes by mapping intention and judgment of engineers to operations on CPPS. We then performed an experiment of performance improvement by engineers on the prototype system. The experiment verified that the D3 concept is successfully realized and that the proposed method is effective at representing the engineering processes of engineers.