Presentation Information
[10a-N304-8]Construction of a closed loop for autonomous materials exploration using heterogeneous laboratory instruments controlled by ROS2
〇Kensei Terashima1, Taiga Ozawa1,2, Naruki Yoshikawa1, Ryo Tamura1, Shoichi Matsuda1,2, Yoshihiko Takano1,3 (1.NIMS, 2.Science Tokyo, 3.Univ. of Tsukuba)
Keywords:
Laboratory Automation
In the construction of a Self-Driving Laboratory that autonomously plans and executes experiments, a central challenge lies in integrating and coordinating instruments and their associated software, which are generally not designed for interoperability. In our previous report, we built a general-purpose lower-layer orchestration framework for laboratory instruments based on ROS2, a framework widely used for robotic control, and demonstrated the automation of solid-state bulk material synthesis by arc melting. In this talk, we show the extended system that incorporates NIMO, which proposes the next experimental conditions using a Bayesian optimization algorithm, and XERUS, an automated XRD analysis software for phase identification, each integrated as a ROS2 node. This enables an end-to-end closed loop: composition proposal - arc-melting synthesis - XRD measurement - automated phase identification - re-proposal, where XRD sample mount still relies on a human in the loop.