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Displaying 76 - 98 of 98

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