학술논문

Enabling the on-line intrinsic evolution of analog controllers
Document Type
Conference
Source
2005 NASA/DoD Conference on Evolvable Hardware (EH'05) Evolvable hardware Evolvable Hardware, 2005. Proceedings. 2005 NASA/DoD Conference on. :3-11 2005
Subject
Computing and Processing
Hardware
NASA
DC motors
Control systems
Space technology
Communication system control
Space vehicles
Field programmable analog arrays
Degradation
Propulsion
Language
ISSN
1550-6029
Abstract
The intrinsic evolution of analog controllers to provide closed-loop control of the speed of a DC motor has been previously demonstrated at NASA Marshall Space Flight Center. A side effect of the evolutionary process is that during evolution there are necessarily poor configurations to be evaluated that could cause damage to the plant. This paper concerns the development and implementation of a safe evolvable analog controller (EAC) architecture able to evolve controllers on-line even in the presence of these poor configurations. The EAC concept is discussed and experimental results are presented that show the feasibility of the approach. This EAC architecture represents the first in a series of steps required to make deployment of an evolvable controller a reality.