Ultrawideband for Automated Real-Time Three-Dimensional Location Sensing for Workforce, Equipment, and Material Positioning and Tracking

Management of construction resources, such as workforce, equipment, and material, is critical to project success. Completion of work tasks on schedule, safely and within the proposed budget requires a coordinated planning effort that allocates adequate availability of project resources. Because this task alone can become a challenging and time-consuming effort for many field personnel, several existing technologies are reviewed for their benefits and limitations in keeping oversight of resource location and status at job sites. To ensure the optimal solution using the right resources, such knowledge becomes even more meaningful when optimizing construction logistics and safety at the same time. This paper introduces an emerging sensing technology called ultrawideband (UWB) that is capable of determining three-dimensional resource location information in object-cluttered construction environments in real time (up to 60 Hz). The use of UWB is explained in a variety of construction applications including simplifying on-site management, improving resource productivity and usage, reducing schedule and cost, and increasing work zone safety. UWB technology and its advantages and limitations are compared with the state of the art in positioning technologies. Results of preliminary UWB experiments in the laboratory and construction environment are presented using developed data processing algorithms and a method to determine the accuracy of UWB position measurements. The paper discusses the feasibility of using ultrawideband as a data collection and decision support tool for robotic (automated) infrastructure construction applications in the areas of real-time three-dimensional material flow and workforce location tracking, optimized machine positioning and automated navigation, and proactive work zone safety.

[1]  Alexander Yarovoy.  Ultra-Wideband Systems , 2003, 2003 33rd European Microwave Conference, 2003.

[2]  G.F. Ross,et al.  Time-domain electromagnetics and its applications , 1978, Proceedings of the IEEE.

[3]  Carlos H. Caldas,et al.  Tracking the Location of Materials on Construction Job Sites , 2006 .

[4]  Jochen Teizer,et al.  Combined Ultra-Wideband Positioning and Range Imaging Sensing for Productivity and Safety Monitoring in Building Construction , 2007 .

[5]  R.J. Fontana,et al.  Recent system applications of short-pulse ultra-wideband (UWB) technology , 2004, IEEE Transactions on Microwave Theory and Techniques.

[6]  D. Harmer,et al.  UltraWideBand indoor positioning systems and their use in emergencies , 2004, PLANS 2004. Position Location and Navigation Symposium (IEEE Cat. No.04CH37556).

[7]  Lucio Soibelman,et al.  Shape-Based Retrieval of Construction Site Photographs , 2008 .

[8]  L. Taylor,et al.  Ultra-Wideband and Its Capabilities , 2003 .

[9]  Robert J. Fontana.  Experimental Results from an Ultra Wideband Precision Geolocation System , 2002 .

[10]  S.V. Rao,et al.  Position localization with impulse ultra wide band , 2005, IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics, 2005..

[11]  G.B. Giannakis,et al.  Localization via ultra-wideband radios: a look at positioning aspects for future sensor networks , 2005, IEEE Signal Processing Magazine.

[12]  R.J. Fontana,et al.  An ultra wideband radar for micro air vehicle applications , 2002, 2002 IEEE Conference on Ultra Wideband Systems and Technologies (IEEE Cat. No.02EX580).

[13]  C. Fowler,et al.  Assessment of ultra-wideband (UWB) technology , 1990, IEEE Aerospace and Electronic Systems Magazine.

[14]  Young-Kyung Jeong,et al.  Development of a UWB GPR system for detecting small objects buried under ground , 2003, IEEE Conference on Ultra Wideband Systems and Technologies, 2003.