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Analiza tehnologije terestričnega laserskega skeniranja za spremljanje deformacij na objektih : doktorska disertacija
Vezočnik, Rok (Author), Ambrožič, Tomaž (Mentor) More about this mentor... This link opens in a new window, Pfeifer, Norbert (Co-mentor), Mikoš, Matjaž (Thesis defence commission member), Kogoj, Dušan (Thesis defence commission member), Kosmatin Fras, Mojca (Thesis defence commission member), Veljanovski, Tatjana (Thesis defence commission member)

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Abstract
Spremljanje premikov in deformacij antropogenih prostorskih struktur in objektov predstavlja eno izmed najbolj zahtevnih področij v geodeziji. Poleg merskih tehnologij, ki se tradicionalno uporabljajo za izvedbo takšnih nalog, predstavlja terestrično lasersko skeniranje dodatno možnost ploskovnega načina analiziranja objektnih površin. Glavni cilj doktorske naloge je v zagotovitvi odgovorov o možnostih uporabe terestričnega laserskega skeniranja za dolgoročno spremljanje premikov in deformacij ter o načinu izvedbe takšne oblike spremljave na poljubnih objektih. Poleg tega bo v okviru naloge ovrednotena hipoteza, da lahko s pomočjo te tehnologije daljinskega zaznavanja k analizi deformacij pristopimo v območju milimetrov. Za rešitev problema stabilnega referenčnega sistema, ki pogojuje visoko kakovostno analiziranje morebitnih sprememb položajev oblakov točk, je skeniranje treba povezati z ostalimi geodetskimi tehnikami, tj. zelo natančno statično izmero GNSS in precizno klasično terestrično izmero. Naloga predlaga metodologijo takšnega zelo natančnega načina spremljanja, ki je bila preizkušena v okviru dveh testov v naravi. Poleg teh dveh testov so bili za potrebe naloge zasnovani tudi testi za preverjanje kakovosti uporabljene merske opreme (tarč laserskega skeniranja) in odzivnosti skenerja na lastnosti površinskega materiala..

Language:Slovenian
Keywords:geodezija, disertacije, terestrično lasersko skeniranje, precizna klasična terestrična izmera, GNSS, analiza deformacij, dolgoročna geodetska spremljava
Work type:Dissertation (m)
Tipology:2.08 - Doctoral Dissertation
Organization:FGG - Faculty of Civil and Geodetic Engineering
Year:2011
Publisher:[R. Vezočnik]
Number of pages:XI, 224 str.
Place:Ljubljana
UDC:528.3+528.53:528.7/.8(043.3)
COBISS.SI-ID:5623905 Link is opened in a new window
Views:1134
Downloads:269
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Secondary language

Language:English
Title:Analysis of terrestrial laser scanning technology for structural deformation monitoring
Abstract:
Monitoring displacements and deformations of anthropogenic spatial structures and objects represents one of the most intricate areas in geodetic surveying. Besides the measurement technologies that have been traditionally used for such tasks, terrestrial laser scanning represents another possibility employing the surface-wise deformation inspection of the objects’ surfaces. The main aim of the thesis is to try to provide answers whether terrestrial laser scanning can be used for monitoring displacements and deformations in a long-term perspective and how this could be achieved for any arbitrary surface. Furthermore, the hypothesis will be challenged with the statement that the deformation inspection can be performed in the millimeter domain with this remote sensing measurement technology. In order to solve the problem of a stable reference system and to assure the high quality of possible position changes of point clouds, scanning is integrated with two complementary surveying techniques, i.e., high quality static GNSS positioning and precise classical terrestrial surveying. The methodology of such high precision monitoring approach is proposed in the thesis and was tested in two case study outdoor experiments. Besides these two outdoor experiments, also indoor tests were designed to evaluate the quality of the surveying equipment (laser scanning targets) as well as the response of the scanner to the surface material.

Keywords:doctoral thesis, geodesy, terrestrial laser scanning, precise classical terrestrial surveying, deformation analysis, long-term monitoring

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