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Displaying 276 - 300 of 342

Performance Evaluation and Metrics for Perception in Intelligent Manufacturing

December 31, 2009
Author(s)
Roger D. Eastman, Tsai H. Hong, Jane Shi, Tobias Hanning, Bala Muralikrishnan, S. S. Young, Tommy Chang
Real-time three-dimensional vision has been rapidly advancing over the past twenty years, leading to a number of successful laboratory demonstrations, including real-time visual servoing, autonomous vehicle navigation , and real-time people and vehicle

Evaluation of RoboCup Maps

December 17, 2009
Author(s)
Stephen B. Balakirsky, Benjamin Balaguer, Stefano Carpin, Arnoud Visser
This paper describes the steps taken to create the score criteria aimed at measuring the quality of maps produced by teams participating in the RoboCup Rescue Virtual Robots competition. Since metrics have already been developed by a few research groups

From Simulation to Real Robots with Predictable Results: Methods and Examples

December 1, 2009
Author(s)
Stephen B. Balakirsky, Stefano Carpin, George Dimitoglou, Benjamin Balaguer
From a theoretical perspective, one may easily argue (as we will in this chapter) that simulation accelerates the algorithm development cycle. However, in practice many in the robotics development community share the sentiment that "Simula-tion is doomed

Performance Measurements Towards Improved Manufacturing Vehicle Safety

November 23, 2009
Author(s)
Roger V. Bostelman, William P. Shackleford
In this paper, we describe the current 2D (dimensional) sensor and ideal sensor configurations if 3D imagers are mounted on manufacturing vehicles in an attempt to make them more safe. Towards the ideal sensor configuration, three experiments were

Mobile Microrobot Characterization through Performance-Based Competitions

November 19, 2009
Author(s)
Jason J. Gorman, Craig D. McGray, Richard A. Allen
Recent advances in the design and fabrication of microelectromechanical systems (MEMS) have enabled the development of mobile microrobots that can autonomously navigate and manipulate in controlled environments. It is expected that this technology will be

Interoperability and the DMIS experience

October 30, 2009
Author(s)
John A. Horst
Because they enable true interoperability, information exchange standards can help manufacturers reduce cost and improve product quality, but only if the standards are developed and implemented correctly. We will answer questions manufacturers and

Mathematical Metrology for Evaluating a 6DOF Visual Servoing System

October 8, 2009
Author(s)
Tommy Chang, Tsai H. Hong, Milli Shah, Roger D. Eastman
In this paper we develop the best homogeneous matrix trans- formation to fit two streams of dynamic six-degree-of-freedom (6DOF) data for evaluating perception systems using ground truth. In particular, we compare object position and orien- tation results

Quantitative Assessment of Robot-generated Maps

October 8, 2009
Author(s)
Christopher J. Scrapper Jr, Rajmohan Madhavan, Adam S. Jacoff, R Lakaemper, A Censi, Afzal A. Godil, Asim Wagan
Mobile robotic mapping is now considered to be a sufficiently mature field with demonstrated successes in various domains. While there has been much progress made in the development of computationally efficient and consistent mapping schemes, it is still

Measurement Traceability and Quality Assurance in a Nanomanufacturing Environment

September 25, 2009
Author(s)
Ndubuisi G. Orji, Ronald G. Dixson, Aaron Cordes, Benjamin Bunday, John Allgair
A key requirement for nano-manufacturing is maintaining acceptable traceability of measurements performed to determine size. Given that properties and functionality at the nanoscale are governed by absolute size, maintaining the traceability of dimensional

Impact of automation on precision

August 3, 2009
Author(s)
M A. Donmez, Johannes A. Soons
Automation has significant impacts on the economy and the development and use of technology. In this section, the impacts of automation on precision, which directly influences science, technology, and the economy, are discussed. As automation enables

Uncertainty Analysis of a Simple Fringe Projection System

July 1, 2009
Author(s)
Shawn P. Moylan, Gregory W. Vogl
Fringe projection is an optical method of measuring the surface profile of a part. Most basic fringe projection processes require an initial calibration step to determine components of coordinate transformation matrices before the surface point coordinates

Robots to the Rescue

June 30, 2009
Author(s)
Elena R. Messina
Despite current limitations, robots can still play a significant role in helping the response community by being their eyes and ears in dangerous, unknown, or difficult-to-access locations. This article describes how the National Institute of Standards and

Advancing Manufacturing Research Through Competitions

April 17, 2009
Author(s)
Stephen B. Balakirsky, Rajmohan Madhavan
Competitions provide a technique for building interest and collaboration in targeted research areas. This paper will present a new competition that aims to increase collaboration amongst Universities, automation end-users, and automation manufacturers

Performance of Super-Resolution Enhancement for Flash LADAR Data

August 21, 2008
Author(s)
Tsai Hong Hong, Shuowen Hu, S. S. Young
Flash laser detection and ranging (LADAR) systems are increasingly used in robotics applications for autonomous navigation and obstacle avoidance. Their compact size, high frame rate, wide field of view, and low cost are key advantages over traditional

An Integrated Control and Simulation Environment for Mobile Robot Software Development

August 7, 2008
Author(s)
Stephen B. Balakirsky, Frederick M. Proctor, Christopher J. Scrapper Jr, Thomas Kramer
In order to expedite the research and development of robotic systems and foster development of novel robot configuration, is it essential to develop tools and standards that allow researchers to rapidly develop, communicate, and compare experimental

Open Architecture Software Design for Online Spindle Health Monitoring

May 1, 2007
Author(s)
Kang B. Lee, Robert Gao, Ruqiang Yan, Li Zhang
This paper presents open systems architecture-based software design for an online spindle health monitoring system. The software is implemented using the graphical programming language of LabVIEW, and presents the spindle health status in two types of

Process Monitoring of Turning and Model Adaptation for Smart Machining Systems

March 1, 2007
Author(s)
Jarred C. Heigel, Robert W. Ivester
Smart Machining Systems improve manufacturing efficiency using optimization based on process models. Cutting force models developed from a narrow set of empirical data provide insight into the physical properties of cutting, but the extreme physical

A Single Discharge Study of Micro-EDM

January 1, 2006
Author(s)
Shawn P. Moylan
Micro-Electro-Discharge Machining (micro-EDM) is gaining in popularity within the micro- and meso-scale machining community. The process is very well suited to machining small, intricate features in any type of conductive material because material removal

Performance Evaluation of a Prototype Machine Tool for Machining Meso-scaled Parts

January 1, 2003
Author(s)
Bradley N. Damazo, M A. Donmez, Michael L. McGlauflin, J B. Werkmeister, Johannes A. Soons, S C. Bryant, Alex Slocum
With the increased prevalence of meso-scaled products and feature sizes, new tools are needed to bridge the gap between fabrication processes tailored for micrometer and millimeter sized features [1-4]. Compared to its traditional counterpart, a small

Understanding Part Fabrication Errors in Closed-Loop Machining Systems

June 1, 2002
Author(s)
Herbert T. Bandy, Lawrence A. Welsch
This paper presents an analysis of part fabrication errors (part dimension and form deviations) in closed-loop machining systems. Modeling methods are used to situate error components in the context of other error components to clarify the effects of error
Displaying 276 - 300 of 342