Energy-efficient technique for engineering structural monitoring in the dark

Chong, Albert K. (2012) Energy-efficient technique for engineering structural monitoring in the dark. Applied Mechanics and Materials, 209-211. pp. 1847-1851. ISSN 1660-9336

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Abstract

The research investigated the use of low-cost video cameras and low-voltage near-infrared emitter for night-time engineering structural monitoring. The aim of the investigation was to determine whether near-infrared video could be used for night-time continuous engineering structural monitoring. Engineering structural deformation monitoring trials were carried out using wooden, steel and concrete beams. Factory floor floodlights and near-infrared emitters were used to provide light for the video recording during the tests in total darkness. Multi-station photogrammetric image processing techniques were exploited to obtain accurate 3D models of the structural deformation. The results show that near-infrared video and colour video give similar 3D measurement accuracy of around 0.050 mm. Nevertheless, the near-infrared video technique is more suitable for night-time deformation monitoring as it requires less electric power to illuminate objects continuously in the dark.

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Item Type:	Article (Commonwealth Reporting Category C)
Refereed:	Yes
Item Status:	Live Archive
Additional Information:	Copyright © 2013 Scientific.net. Published version deposited in accordance with the copyright policy of the publisher.
Faculty / Department / School:	Historic - Faculty of Engineering and Surveying - Department of Surveying and Land Information
Date Deposited:	09 May 2013 01:09
Last Modified:	04 May 2016 02:26
Uncontrolled Keywords:	near infrared; engineering structure; deformation monitoring; video recording
Fields of Research :	09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering 09 Engineering > 0906 Electrical and Electronic Engineering > 090605 Photodetectors, Optical Sensors and Solar Cells 09 Engineering > 0909 Geomatic Engineering > 090999 Geomatic Engineering not elsewhere classified
Socio-Economic Objective:	E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI:	10.4028/www.scientific.net/AMM.209-211.1847
URI:	http://eprints.usq.edu.au/id/eprint/22492

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