Rotating laser-based system for full profile measurement

Tseng, A A; Tanaka, M; Leeladharan, B and Choi, J G (2003) Rotating laser-based system for full profile measurement. Construction Innovation, 3(2), pp. 97-110. ISSN 1471-4175

Abstract

A laser-based system has been developed to automatically measure complete inner profiles of various structures. The system uses a pointed laser source passing through a rotating optical device to obtain a series of distance measurements. To enhance the portability of the system, a hand-held computer is selected to control the laser source and the rotating optical device. In addition to system control, the software associated with the handheld computer has also been developed to use the series distance measurements to construct a complete profile of the measured structure as well as to estimate the crosssectional area of the profile. The system can provide critical information for the construction industry and a variety of other commercial applications. The evaluation and analysis of measurement indicated that on accuracy within 4 per cent, for typical window designs and floor patterns, could be achieved. Recommendations for improvement of the system have also been included.

Item Type: Article
Uncontrolled Keywords: automation; floor plan; laser measurement; optical measurement; phase difference method; profile measurement; shape measurement; windowpanes
Index terms: window, accuracy, automation, estimate, construction industry
Subjects: financial and cost management, professional development, automation and robotics, architectural elements, industry analysis
Topics: Cost Management, Information Management, Research Practice, Digital Applications, Design Practice
Descriptive scope: 3 PCT

N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here