Type of Document	Master's Thesis
Author	Lundberg, Eric J.
URN	etd-08012012-040621
Title	The Automated Laser Position System - ALPS
Degree	Master of Science
Department	Civil Engineering
Advisory Committee	Advisor Name Title Beliveau, Yvan J. Committee Chair Johnson, Steven D. Committee Member Pratt, Timothy J. Committee Member Vorster, Michael C. Committee Member
Keywords	Construction equipment
Date of Defense	1989-09-15
Availability	restricted
Abstract The construction industry needs an accurate real—time positioning system. Such a system, if successfully implemented, would lead to significant increases in the performance of many construction operations. This thesis presents the Automated Laser Position System (ALPS) for accurate real-time positioning. ALPS is a spin—off of the Automated Position And Control System (APAC) research, sponsored by the National Science Foundation under grant DMC-8717476. The ALPS concept has three primary components: a rotation laser, laser detectors and a central processing unit. ALPS generates both horizontal (X,Y) and vertical (Z) position information. It is mathematically predicted that ALPS could produce accuracies of ± 17 mm in the horizontal and ± 5,9 mm in the vertical, at a range of 400 m. Position measurements would be updated 50 times a second.
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