Dealing Order Determination for Various Simultaneous Device Failures for Material Circulation Control in ALSS by Hierarchical Approach.

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 had proposed hierarchical and autonomous control method based on automatic scheduling and Multi-Agent Learning Control method, and had constructed automatic order determination system to deal with failure machines. We discovered the how much failure equipment can be handled by our procedure last year, but this was only Oxygen circulation system in the lower layer. In this year, we calculated material circulation with various failure situations using the O2 and CO2 gas circulation model in the lower layer to check how much broken equipment our mechanism could deal with it.