Automatic Determination of Repair Order of Various Device Failures for Material Circulation Control in ALSS by Hierarchical Approach



Journal Title

Journal ISSN

Volume Title


50th International Conference on Environmental Systems


An Advanced Life Support System (ALSS) achieves life support in the ultimate environment by regenerating materials in the system. Because of their complexity of material circulations in ALSS, it is difficult to control whole-system material circulations and to handle on abnormal situations. Because of this, we suggested that the material circulation in the system is controlled automatically, and if unpredictable events occur, it is preferable that the system adapts autonomously. We had proposed hierarchical and autonomous control method based on automatic scheduling and Multi-Agent Learning Control method. We also considered if a number of equipment have a trouble at the same time, how to be reacted autonomously by control system. We constructed the mechanism to determine the repair order automatically, using hierarchical model that is same as material circulation control system last year. In this year, we calculated material circulation with various failure situations to check our mechanism dealt with it.


Masakatsu Nakane, Nihon University
Hiroyuki Miyajima, International University of Health and Welfare
ICES301: Advanced Life Support Systems Control
The 50th International Conference on Environmental Systems was held virtually on 12 July 2021 through 14 July 2021.


Automatic Determination of Repair Order, Hierarchical Approach, Material Circulation Control, Advanced Life Support System