System Structure Modification in Advanced Life Support System using Autonomous Control Method

2012 ◽  
Author(s):  
Masakatsu NAKANE ◽  
Nobuhiro YAMAZAKI ◽  
Yoshio ISHIKAWA ◽  
Hiroyuki MIYAJIMA
Keyword(s):  
Support System ◽  
Life Support ◽  
Control Method ◽  
Advanced Life Support ◽  
Autonomous Control ◽  
System Structure ◽  
Life Support System ◽  
Structure Modification

Life support system with autonomous control employing plant photosynthesis

1976 ◽  
Vol 3 (9-10) ◽  
pp. 633-650 ◽  
Author(s):  
I.I. Gitelson ◽  
I.A. Terskov ◽  
B.G. Kovrov ◽  
F.Ya. Sidko ◽  
G.M. Lisovsky ◽  
...  
Keyword(s):  
Support System ◽  
Life Support ◽  
Autonomous Control ◽  
Life Support System ◽  
Plant Photosynthesis

scholarly journals Complexity Evaluation of an Environmental Control and Life-Support System Based on Directed and Undirected Structural Entropy Methods

Entropy ◽  
2021 ◽  
Vol 23 (9) ◽  
pp. 1173
Author(s):  
Kaichun Yang ◽  
Chunxin Yang ◽  
Han Yang ◽  
Chenglong Zhou
Keyword(s):  
Support System ◽  
Level Scheme ◽  
Life Support ◽  
Environmental Control ◽  
Complex Structure ◽  
Reducing Power ◽  
System Structure ◽  
System Level ◽  
Life Support System ◽  
Structural Entropy

During manned space missions, an environmental control and life-support system (ECLSS) is employed to meet the life-supporting requirements of astronauts. The ECLSS is a type of hierarchical system, with subsystem—component—single machines, forming a complex structure. Therefore, system-level conceptual designing and performance evaluation of the ECLSS must be conducted. This study reports the top-level scheme of ECLSS, including the subsystems of atmosphere revitalization, water management, and waste management. We propose two schemes based on the design criteria of improving closure and reducing power consumption. In this study, we use the structural entropy method (SEM) to calculate the system order degree to quantitatively evaluate the ECLSS complexity at the top level. The complexity of the system evaluated by directed SEM and undirected SEM presents different rules. The results show that the change in the system structure caused by the replacement of some single technologies will not have great impact on the overall system complexity. The top-level scheme design and complexity evaluation presented in this study may provide technical support for the development of ECLSS in future manned spaceflights.

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