Environmental Engineering Reference
In-Depth Information
HT 2:
Science
Formation Maintaining
and Control
HT 3:
Science
Cluster
Reconfiguration
HT 1:
Science
Imaging
HT 4:
Science
Cluster Upgrade
HIGH-LEVEL TASKS
ST 41:
Accept.
new S/C
ST 21:
Reject.
Disturb.
ST 32:
Fo r m .
Change
ST 32:
Fo r m .
Change
ST 22:
Collis.
Avoid.
ST 23:
Orbit
Maneuv.
ST 31:
Fa u l t
Detect.
ST 11:
Science
SUB-LEVEL TASKS
TASK CATEGORY
F11
F12
F11
F12
F11
F12
F11
F12
F11
F12
F11
F12
INTERACTION
1. Sensing s/c info
2. Transmitting s/c info
2. DECISION-MAKING
0. Imaging
1. Disturbance
2. Collision Avoidance
3. Failure/Loss
4. Upgrade/Gain
F20
F21
F22
F23
F24
3. ORGANIZATIONAL
0. Scheduler
1. Planner (Cornwell)
2. Planner (Assign positions)
3. Task allocator
4. FF planner (Trajectory)
F30
F30
F30
F30
F31
F32
F33
F31
F32
F33
F34
4 . R E P R E S E N TAT I O N A L
0. Storing Cluster Information
F40
F40
5. OPERATIVE
0. DAR-Imaging
1. Orbit maneuvering
(LQR, bang-bang, FF-command)
F50
F51
F51
F51
Fig. 9.3.
Functional breakdown of the task structure specifically for Techsat21
3
Fig. 9.4.
Coordination architectures for coordination of multiple spacecraft-level
agents
4
3
Reprinted from Artificial Intelligence, 145(1-2), Thomas Schetter, Mark
Campbell and Derek Surka, Multiple agent-based autonomy for satellite constel-
lations, page 154, Copyright (2003), with permission from Elsevier.
4
Reprinted from Artificial Intelligence, 145(1-2), Thomas Schetter, Mark
Campbell and Derek Surka, Multiple agent-based autonomy for satellite constel-
lations, page 166, Copyright (2003), with permission from Elsevier.
