Robert N Rasmussen

US Patent:

6745089, Jun 1, 2004

Filed:

Feb 1, 2001

Appl. No.:

09/776573

Inventors:

Robert D. Rasmussen - Monrovia CA
Daniel L. Dvorak - La Crescenta CA
Kim P. Gostelow - San Marina CA
Thomas W. Starbird - Pasadena CA
Erann Gat - Altadena CA
Steve Ankuo Chien - Pasadena CA
Robert M. Keller - Claremont CA

Assignee:

California Institute of Technology - Pasadena CA

International Classification:

G05B 1302

US Classification:

700 51, 700 28, 700 29, 700 30, 700 31, 700 52, 703 2

Abstract:

An autonomous controller, comprised of a state knowledge manager, a control executor, hardware proxies and a statistical estimator collaborates with a goal elaborator, with which it shares common models of the behavior of the system and the controller. The elaborator uses the common models to generate from temporally indeterminate sets of goals, executable goals to be executed by the controller. The controller may be updated to operate in a different system or environment than that for which it was originally designed by the replacement of shared statistical models and by the instantiation of a new set of state variable objects derived from a state variable class. The adaptation of the controller does not require substantial modification of the goal elaborator for its application to the new system or environment.

US Patent:

49339362, Jun 12, 1990

Filed:

Aug 17, 1987

Appl. No.:

7/085833

Inventors:

Robert D. Rasmussen - Monrovia CA
Robert M. Manning - Pasadena CA
Blair F. Lewis - Altadena CA
Gary S. Bolotin - Sierra Madre CA
Richard S. Ward - Pleasanton CA

Assignee:

The United States of America as represented by the Administrator of the
National Aeronautics and Space Administration - Washington DC

International Classification:

H04J 302

US Classification:

370 859

Abstract:

This is a distributed computing system providing flexible fault tolerance; ease of software design and concurrency specification; and dynamic balance of the loads. The system comprises a plurality of computers each having a first input/output interface and a second input/output interface for interfacing to communications networks each second input/output interface including a bypass for bypassing the associated computer. A global communications network interconnects the first input/output interfaces for providing each computer the ability to broadcast messages simultaneously to the remainder of the computers. A meshwork communications network interconnects the second input/output interfaces providing each computer with the ability to establish a communications link with another of the computers bypassing the remainder of computers. Each computer is controlled by a resident copy of a common operating system. Communications between respective ones of computers is by means of split tokens each having a moving first portion which is sent from computer to computer and a resident second portion which is disposed in the memory of at least one of computer and wherein the location of the second portion is part of the first portion.