Automatic Repair Order Determination for Severe Device Failures in Material Circulation Control System using 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 circulation in ALSS, it is difficult to control whole-system material circulations and to handle on abnormal situations. Because of this, it is recommended 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 new autonomous control method based on a hierarchical control, 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 more severe failure situation to check our mechanism dealt with it.