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Displaying 26 - 49 of 49

The LAGR Project. Integrating learning into the 4D/RCS Control Hierarchy

August 1, 2006
Author(s)
James S. Albus, Roger V. Bostelman, Tsai H. Hong, Tommy Chang, William P. Shackleford, Michael O. Shneier
The National Institute of Standards and Technology?s (NIST) Intelligent Systems Division (ISD) is a par-ticipant in the Defense Advanced Research Project Agency (DARPA) LAGR (Learning Applied to Ground Robots) Project. The NIST team?s objective for the

THE LAGR PROJECT - Integrating learning into the 4D/RCS Control Hierarchy

June 27, 2006
Author(s)
James S. Albus, Roger V. Bostelman, Tsai H. Hong, William P. Shackleford, Michael O. Shneier
The National Institute of Standards and Technology's (NIST) Intelligent Systems Division (ISD) has been a part of the Defense Advanced Research Project Agency (DARPA) LAGR (Learning Applied to Ground Robots) Project. The NIST team's objective for the LAGR

Learning in a Hierarchical Control System: 4D/RCS in the DARPA LAGR Program

June 26, 2006
Author(s)
James S. Albus, Roger V. Bostelman, Tommy Chang, Tsai H. Hong, William P. Shackleford, Michael O. Shneier
The Defense Applied Research Projects Agency (DARPA) Learning Applied to Ground Vehicles (LAGR) program aims to develop algorithms for autonomous vehicle navigation that learn how to operate in com-plex terrain. Over many years, the National Institute of

Embedded Real-Time Linux for Cable Robot Control

October 2, 2002
Author(s)
Frederick M. Proctor, William P. Shackleford
Linux is a version of the Unix operating system distributed according to the open source model. Programmers are free to adapt the source code for their purposes, but are required to make their modifications or enhancements available as open source software

Embedded Real-Time Linux For Cable Robot Control

October 1, 2002
Author(s)
Frederick M. Proctor, William P. Shackleford
Linux is a version of the Unix operating system distributed according to the open source model. Programmers are free to adapt the source code for their purposes, but are required to make their modifications or enhancements available as open source software

A Tool to Improve Efficiency in Large Scale Manufacturing

September 25, 2002
Author(s)
Roger V. Bostelman, William P. Shackleford, Frederick M. Proctor, James S. Albus, Alan M. Lytle
NIST is working directly with industry to improve repair and conversion operations of ships in dry dock. Similarly, this work allows transfer of technology to construction and other industries requiring worker-access to large, external surfaces with

The Flying Carpet: A Tool to Improve Ship Repair Efficiency

September 12, 2002
Author(s)
James S. Albus, Roger V. Bostelman, Frederick M. Proctor, William P. Shackleford, Alan M. Lytle
NIST is working directly with industry to improve repair and conversion operations of ships in dry dock. Similarly, this work allows transfer of technology to shipbuilding, aircraft maintenance, construction, and other industries requiring worker-access to

The Flying Carpet: A Tool to Improve Ship Repair Efficiency

September 1, 2002
Author(s)
Roger V. Bostelman, William P. Shackleford, Frederick M. Proctor, James S. Albus, Alan M. Lytle
NIST is working directly with industry to improve repair and conversion operations of ships in dry dock. The technology discussed is applicable to shipbuilding, aircraft maintenance, construction, and other industries requiring worker-access to large

4D/RCS Version 2.0: A Reference Model Architecture for Unmanned Vehicle Systems

August 22, 2002
Author(s)
James S. Albus, Hui-Min Huang, Elena R. Messina, Karl Murphy, Maris Juberts, Alberto Lacaze, Stephen B. Balakirsky, Michael O. Shneier, Tsai H. Hong, Harry A. Scott, Frederick M. Proctor, William P. Shackleford, John L. Michaloski, Albert J. Wavering, Thomas Kramer, Nicholas Dagalakis, William G. Rippey, Keith A. Stouffer, Steven Legowik
The 4D/RCS architecture provides a reference model for military unmanned vehicles on how their software components should be identified, organized, and interacting such that missions, especially those involving unknown or hostile environments, can be

Tying Together Design, Process Planning and Machining with Step-NC Technology

June 13, 2002
Author(s)
Frederick M. Proctor, John L. Michaloski, William P. Shackleford
While simulation has been successful in tying design and process planning into an iterative loop, machining has traditionally been a downstream terminus of the manufacturing cycle. Simulation of machining has proven difficult due to the highly dynamic and

Timing Studies of Real-Time Linux for Control

April 1, 2002
Author(s)
Frederick M. Proctor, William P. Shackleford
Linux is being used increasingly for real-time control of industrial equipment. Versions of Linux adapted to support deterministic task execution are freely available. The resolution of task timing is much higher than for typical user-level processes, on

Real-Time Operating System Timing Jitter and its Impact on Motor Control

October 29, 2001
Author(s)
Frederick M. Proctor, William P. Shackleford
General-purpose microprocessors are increasingly being used for control applications due to their widespread availability and software support for non-control functions like networking and operator interfaces. Two classes of real-time operating systems

Real-Time Operating System Timing Jitter and its Impact on Motor Control

October 29, 2001
Author(s)
Frederick M. Proctor, William P. Shackleford
General-purpose microprocessors are increasingly being used for control applications due to their widespread availability and software support for non-control functions like networking and operator interfaces. Two classes of real-time operating systems

Open System Architecture for Real-time Control Using an UML Based Approach

May 1, 2001
Author(s)
Hui-Min Huang, Elena R. Messina, Harry A. Scott, James S. Albus, Frederick M. Proctor, William P. Shackleford
We describe a generic architecture that is applicable to the engineering of many real-time control problems. We further describe how UML is used to apply the architecture to the problems.

Use of Open Source Distribution for a Machine Tool Controller

November 1, 2000
Author(s)
William P. Shackleford, Frederick M. Proctor
In recent years a growing number of government and university labs, non-profit organizations and even a few for-profit corporations have found that making their source code public is good for both developers and users. In machine tool control, a growing

An Architecture and Tool for Large-scale System Control with a manufacturing system application

June 1, 2000
Author(s)
Hui-Min Huang, James S. Albus, William P. Shackleford, Harry A. Scott, Thomas R. Kramer, Elena R. Messina, Frederick M. Proctor
This paper describes a reference architecture that is applicable to multiple classes of large-scale, complex real-time control systems. An associated tool, Generic Shell, is also described. Generic Shell employs a set of code templates that facilitate

JAVA-Based Tools for Development and Diagnosis of Real-Time Control Systems

September 1, 1998
Author(s)
William P. Shackleford, Frederick M. Proctor
The National Institute of Standards and Technology (NIST) has been using the Real-time Control System (RCS) Reference Model Architecture for building control systems based on a hierarchy of cyclically executing control modules. This paper describes the

Validation of Standards Interfaces for Machine Control

May 27, 1996
Author(s)
Frederick M. Proctor, John L. Michaloski, William P. Shackleford, Sandor S. Szabo
Open architecture controllers offer a multitude of benefits to users of machine tools, robots, and coordinate measuring machines, ultimately reducing the life-cycle costs of installing, operating, and maintaining manufacturing equipment. Aside from those

Simulation and Implementation of an Open Architecture Controller

October 1, 1995
Author(s)
Frederick M. Proctor, William P. Shackleford, Charles W. Yang
The National Institute of Standards and Technology (NIST) has developed a modular definition of components for machine control, and a specification to their interfaces, with broad application to robots, machine tools, and coordinate measuring machines