Duncan Campbell

ORCID: 0000-0003-0158-4178
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About
Contact & Profiles
Research Areas
  • Particle Detector Development and Performance
  • Robotic Path Planning Algorithms
  • American Constitutional Law and Politics
  • Engineering Education and Curriculum Development
  • Radiation Detection and Scintillator Technologies
  • Network Time Synchronization Technologies
  • Air Traffic Management and Optimization
  • Smart Grid Security and Resilience
  • Robotics and Sensor-Based Localization
  • Particle physics theoretical and experimental studies
  • Human-Automation Interaction and Safety
  • Higher Education Learning Practices
  • American History and Culture
  • Target Tracking and Data Fusion in Sensor Networks
  • Fuzzy Logic and Control Systems
  • Engineering Education and Pedagogy
  • CCD and CMOS Imaging Sensors
  • Spectroscopy and Chemometric Analyses
  • Advanced Vision and Imaging
  • Semiconductor Lasers and Optical Devices
  • Power Line Communications and Noise
  • EEG and Brain-Computer Interfaces
  • Labor Movements and Unions
  • Advanced Semiconductor Detectors and Materials
  • Multi-Criteria Decision Making

University of Regina
2014-2023

Carrier (United States)
2022

University of South Australia
2021

Queensland University of Technology
2009-2020

Lancaster University
1997-2020

Library and Archives Canada
2014-2019

National University
2014-2018

International Labour Organization
1993-2014

University of Maryland, Baltimore County
2009-2011

Engineering Systems (United States)
2007

In recent years, a phenomenal increase in the development of Unmanned Aerial Vehicles (UAVs) has been observed broad range applications various fields study. Precision agriculture emerged as major field interest, integrating unmanned monitoring crop health into general agricultural practices for researchers are utilizing UAV to collect data post-analysis. This paper describes modular and generic system that is able control using computer vision. A configuration approach similar Observation,...

10.1109/aero.2017.7943593 article EN IEEE Aerospace Conference 2017-03-01

Process bus networks are the next stage in evolution of substation design, bringing digital technology to high-voltage switchyard. Benefits process buses include facilitating use nonconventional instrument transformers, improved disturbance recording and phasor measurement, removal costly, potentially hazardous, copper cabling from switchyards control rooms. This paper examines role a plays an IEC 61850–based automation system. Measurements taken used develop understanding network...

10.1109/tii.2012.2228874 article EN IEEE Transactions on Industrial Informatics 2012-11-21

This paper presents Multi-Step A∗ (MSA∗), a search algorithm based on for multi-objective 4-D vehicle motion planning (three spatial and one time dimensions). The research is principally motivated by the need offline online autonomous unmanned aerial vehicles (UAVs). For UAVs operating in large dynamic uncertain environments, plan consists of sequence connected linear tracks (or trajectory segments). track angle velocity are important parameters that often restricted assumptions grid...

10.1109/tsmcb.2010.2061225 article EN IEEE Transactions on Systems Man and Cybernetics Part B (Cybernetics) 2010-09-20

Change is a permanent feature of market economies. What new in today's world the pace, breadth and depth economic change industrial restructuring that this entails. Over past two decades, industrialized countries have witnessed level which, its scope tempo, has probably been without historic precedent.[...] A central question become whether labour standards impede necessary changes units, structures, employment groth, as well-established current neoliberal thinking would maintain or whether,...

10.2307/2524957 article EN ILR Review 1996-01-01

10.1016/j.nima.2007.04.157 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2007-05-04

Transmission smart grids will use a digital platform for the automation of high-voltage substations. The IEC 61850 series standards, released in parts over last ten years, provide specification substation communication networks and systems. These along with IEEE Std 1588-2008 Precision Time Protocol version 2 (PTPv2) precision timing, are recommended by both Smart Grid Strategy Group National Institute Standards Technology Framework Roadmap Interoperability automation. 61850, PTPv2, Ethernet...

10.1109/tim.2011.2178676 article EN IEEE Transactions on Instrumentation and Measurement 2012-01-13

The IEC 61850 family of standards for substation communication systems was released in the early 2000s and includes 61850-8-1 61850-9-2 that enable Ethernet to be used process-level connections between transmission switchyards control rooms. This paper presents an investigation process bus protection performance, since inservice behavior multifunction buses is largely unknown. An experimental approach adopted a Real Time Digital Simulator "live" automation devices. effect sampling...

10.1109/tpwrd.2013.2291789 article EN IEEE Transactions on Power Delivery 2014-01-31

These essays are in commemoration of the 75th anniversary International labour Organization and 50th Declaration Philadelphia. This volume presents views a group academics policy-makers from government workers' employers' organizations on particular issues posed by prevailing forces globalization various collateral changes, such as high levels unemployment, inequality growing informal sector. They discuss: rationale for against standards present circumstances; issue whether Labour Office...

10.2307/20047318 article EN Foreign Affairs 1995-01-01

10.1016/j.nima.2005.01.056 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2005-03-03

This letter presents a technique to assess the overall network performance of sampled value process buses based on IEC 61850-9-2 using measurements from single location in network. The method is upon use Ethernet cards with externally synchronized time stamping, and characteristics bus protocol. application utility demonstrated by measuring latency introduced switches. Network can be measured set captures, rather than comparing source destination captures. Absolute measures will greatly...

10.1109/tsg.2012.2205637 article EN IEEE Transactions on Smart Grid 2012-07-19

New substation technology, such as nonconventional instrument transformers, and a need to reduce design construction costs are driving the adoption of Ethernet-based digital process bus networks for high-voltage substations. Protection control applications can share bus, making more efficient use network infrastructure. This paper classifies defines performance requirements protocols used in on basis application. These include Generic Object Oriented Substation Event, Simple Network...

10.1109/tie.2012.2233701 article EN IEEE Transactions on Industrial Electronics 2012-12-13

This paper presents a system overview of the UAV forced landing site selection and results to date. The problem is new field research for UAVs this will show machine vision approach taken address problem. are based on aerial imagery collected from series flight trials in Cessna 172. aim locate candidate sites landings, imagery. Output image frames highlight algorithm's selected safe locations. algorithms use processing techniques neural networks classification capable locating areas that...

10.1109/issnip.2005.1595612 article EN International Conference on Intelligent Sensors, Sensor Networks and Information Processing 2005-01-01

Unmanned Aerial Vehicles (UAVs) are increasingly being used in numerous applications, such as remote sensing, environmental monitoring, ecology and search rescue missions. Effective use of UAVs depends on the ability system to navigate mission scenario, especially if UAV is required autonomously. There particular scenarios which navigation faces challenges risks. This creates need for robust motion planning capable overcoming different sources uncertainty. One example a flying search, track...

10.1109/aero.2017.7943775 article EN IEEE Aerospace Conference 2017-03-01

In this paper we describe and flight test a novel system architecture for low cost muti-rotor unmanned aerial vehicles (UAVs) searching, tracking following ground target. The UAV uses only on-board sensors localisation within GPS-denied space with obstacles. This mission is formulated as Partially Observable Markov Decision Process (POMDP) modular framework that runs on the Robotic Operating System (ROS). computes policy executing actions instead of way-points to navigate avoid Results...

10.1109/iros.2016.7759360 article EN 2021 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) 2016-10-01

10.1016/j.nima.2005.03.044 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2005-04-09

A system for automated mission planning is presented with a view to operate unmanned aerial vehicles (UAVs) in the National Airspace System (NAS). This paper describes methods modelling decision variables, enroute flight under visual rules (VFR). For demonstration purposes, task of delivering medical package remote location was chosen. Decision variables include fuel consumption, time, wind and weather conditions, terrain elevation, airspace classification trajectories other aircraft. The...

10.1109/aero.2009.4839608 article EN IEEE Aerospace Conference 2009-03-01

New substation automation applications, such as sampled value (SV) process buses and synchrophasors, require a sampling accuracy of 1 μs or better. The Precision Time Protocol (PTP), IEEE Std. 1588, achieves this level performance integrates well into Ethernet-based networks. This paper takes systematic approach to the evaluation commercially available PTP devices (grandmaster, slave, transparent, boundary clocks) from variety manufacturers. "error budget" is set by requirements each...

10.1109/tim.2013.2245188 article EN IEEE Transactions on Instrumentation and Measurement 2013-03-08

10.1016/j.nima.2005.05.039 article EN Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 2005-06-22
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