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Tytuł:
Variability of roughness parameters calculated using data obtained by TLS depending on scan resolution and beams angle of incidence
Autorzy:
Zaczek-Peplinska, J.
Kowalska, M. E.
Powiązania:
https://bibliotekanauki.pl/articles/115761.pdf
Data publikacji:
2016
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
terrestrial laser scanning
TLS
roughness
orthogonal regression
Terrestrial Laser Scanning
parametry chropowatości
regresja ortogonalna
Opis:
Spatial data obtained by Terrestrial Laser Scanning (TLS) can be used in order to create various inventories and analyses of the surveyed surfaces. This paper presents a use of orthogonal regression line in order to identify the beam's incidence angle on the surveyed surface as well as identification of roughness parameters using data obtained by terrestrial laser scanning. Accuracy of the visualisation of the surface and roughness parameters, in particular Ra (mean arithmetic deviation of surface roughness profile forming the average line) are closely correlated to the scan resolution of the evaluated area. Presented analyses indicate a need to identify areas with uniform visualisation [1,2] in the compared scans.
Źródło:
Challenges of Modern Technology; 2016, 7, 1; 40-45
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected aspects of using terrestrial laser scanning technology as the source of additional data for building information modeling
Autorzy:
Kołakowska, M.
Świerczyńska, E.
Powiązania:
https://bibliotekanauki.pl/articles/115680.pdf
Data publikacji:
2013
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
terrestrial laser scanning
building information modelling
Opis:
Building Information Modeling is the concept of a digital presentation of the physical and functional properties of an object. This paper presents proposal of use of terrestrial laser scanning technology to complement and verify created three-dimensional models of objects. The issue of the article focuses on the technical aspects of data collection from terrestrial laser scanning and its use in the information system of the building. During the field work authors carried out an experimental measurements of office space by phase laser scanner Z+F Imager 5006h. These data were treated as experimental material to test common methods of calculating the transformation parameters of three-dimensional systems, which are used in the calibration of individual scans and fitting them into the given coordinate system. This step is have a significant effect on the accuracy of the spatial model. The measurement experiment confirmed the need for calibration point clouds based on the largest possible number of tie and enabled to propose an inventory technology of long and slender buildings. It uses the connection between terrestrial laser scanning and conventional tacheometric measurements. This solution will reduce errors transferred to another position in the construction of the traverse. The article also deals with problems related to inventory of architectural and construction aspects of buildings and vectorization integrated point cloud in order to develop plans for the buildings or the measurement of specific surface areas. Creation of the models, on the basis of spatial point cloud built from the line of discontinuity is difficult due to: the impact of calibration errors, causing the displacement between cans and blur single scan points belonging to the same surface. Based on the performed studies it was found that the most important advantage of terrestrial laser scanning is possibility to collect in a short time a large number of points representing the actual state of the object, not the design intent. Using laser scanning we can significantly reduce the time spent directly at site, and perform measurement in dark areas. This technology also has a particular application for creating BIM for the modern buildings with complex geometric form, for which the accuracy and timeliness of the created model can be crucial for cost, speed and ease of execution of individual works. In this paper authors will attempt to assess the effectiveness of the application of the presented technology for building information modeling.
Źródło:
Challenges of Modern Technology; 2013, 4, 4; 26-32
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of terrestrial laser scanner with an integrated thermal camera in non-destructive evaluation of concrete surface of hydrotechnical objects
Autorzy:
Kowalska, M.
Zaczek-Peplinska, J.
Powiązania:
https://bibliotekanauki.pl/articles/178891.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
terrestrial laser scanning
thermal camera
concrete surface
intensity
Opis:
The authors present possible applications of thermal data as an additional source of information on an object’s behaviour during the technical assessment of the condition of a concrete surface. For the study one of the most recent propositions introduced by Zoller + Fröhlich company was used, which is an integration of a thermal camera with a terrestrial laser scanner. This solution enables an acquisition of geometric and spectral data on the surveyed object and also provides information on the surface’s temperature in the selected points. A section of the dam’s downstream concrete wall was selected as the subject of the study for which a number of scans were carried out and a number of thermal images were taken at different times of the day. The obtained thermal data was confronted with the acquired spectral information for the specified points. This made it possible to carry out broader analysis of the surface and an inspection of the revealed fissure. The thermal analysis of said fissure indicated that the temperature changes within it are slower, which may affect the way the concrete works and may require further elaboration by the appropriate experts. Through the integration of a thermal camera with a terrestrial laser scanner one can not only analyse changes of temperature in the discretely selected points but on the whole surface as well. Moreover, it is also possible to accurately determine the range and the area of the change affecting the surface. The authors note the limitations of the presented solution like, inter alia, the resolution of the thermal camera.
Źródło:
Studia Geotechnica et Mechanica; 2017, 39, 4; 35-43
0137-6365
2083-831X
Pojawia się w:
Studia Geotechnica et Mechanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Possible Application of Terrestrial Laser Scanner - ScanStation in Vertical Displacement Measurements
Ocena możliwości zastosowania skanera laserowego ScanStation do pomiaru przemieszczeń pionowych
Autorzy:
Dumalski, A.
Powiązania:
https://bibliotekanauki.pl/articles/298212.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:
skaner laserowy
przemieszczenie pionowe
terrestrial laser scanner
vertical displacement
Opis:
Author of the article conducted empirical studies to show the usefulness of the laser scanner in displacement measurements. Vertical displacements were measured on a tester that was specially contracted for that purpose. The test measurements were carried out by applying different methods and different instruments, i.e., the precise leveler, the total station applied with the reflector of without it and ScanStation laser scanner. The test results show great potential for laser scanning in determining the vertical displacements even of millimeter values. The paper also presents briefly how to use laser scanning in surveying measurements and a special attention was paid to some of the parameters characterizing accuracy of the laser scanning.
Autor artykułu przeprowadził badania empiryczne mające na celu pokazanie przydatności skanera laserowego w pomiarach przemieszczeń obiektów inżynierskich. Na specjalnie do tego celu skonstruowanym przyrządzie pomiarowym dokonano pomiaru przemieszczenia pionowego. Wykorzystano różne instrumenty i techniki pomiarowe. Do wyznaczenia przemieszczenia pionowego zastosowano niwelator precyzyjny, tachimetr elektroniczny z funkcją pomiaru z reflektorem i bez oraz skaner laserowy ScanStation. Wyniki testu wskazują na duże możliwości skanowania laserowego w wyznaczaniu przemieszczeń pionowych i pozwalają na wychwycenie ich milimetrowych wartości. W pracy przedstawiono sposoby zastosowań skanowania laserowego w pomiarach oraz zwrócono uwagę na niektóre parametry dokładnościowe charakteryzujące skaner laserowy.
Źródło:
Technical Sciences / University of Warmia and Mazury in Olsztyn; 2011, 14(1); 33-43
1505-4675
2083-4527
Pojawia się w:
Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring technical conditions of engineering structures using the terrestrial laser scanning technology
Autorzy:
Zaczek-Peplinska, J.
Pasik, M.
Adamek, A.
Kołakowska, M.
Łapiński, S.
Powiązania:
https://bibliotekanauki.pl/articles/106876.pdf
Data publikacji:
2013
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
monitoring
terrestrial laser scanning
displacement
monitorowanie
skanowanie laserowe naziemne
przemieszczenia
Opis:
The laser scanning technology offers quite new possibilities in the field of the existing monitoring of engineering structures. The basic advantage of the laser scanning technology is huge amount of measuring observations and practically complete geometric and spectral information about the measured structures, which may be required within the short time. In the context of detection of threatens related to deformations and displacements of building structures, the surface - quasi-continuous distribution of measuring points is one of the most important factors. which ensure the possibility to perform correct evaluation of safety conditions of investigated structures. The proposed technological solution offers a series of new possibilities and the resulting methodology of determination of deformations and displacements of various structures, will considerably increase the scope of possible works and analyses. This will also create the new segment of data, which will result in delivery of additional information concerning conditions of the structure to experts from various fields, such as, among others, civil engineering, construction or geotechnique, who monitor the given structure.
Źródło:
Reports on Geodesy and Geoinformatics; 2013, 95; 1-10
2391-8365
2391-8152
Pojawia się w:
Reports on Geodesy and Geoinformatics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Terrestrial Laser Scanning in Monitoring Hydrotechnical Objects
Autorzy:
Zaczek-Peplinska, J.
Kowalska, M. E.
Powiązania:
https://bibliotekanauki.pl/articles/124612.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
terrestrial laser scanning (TLS)
hydro-engineering
concrete dam
geodetic inventory
Opis:
Developing Terrestrial Laser Scanning technology is provided by modern measuring instruments, i.e. total stations and laser scanners. Owing to these instruments, periodic control measurements of concrete dams carried out as a part of geodetic surveying provide point models characterised by quasi-continuity. Basing on the results of these surveys, it is possible to conduct a number of geometric analyses, as well as to obtain information for detailed analytic and calculative deliberations. A scanner, similarly to a total station, determines spatial coordinates (X, Y, Z) of the surveyed points by identifying distances and angles. Registration of intensity of the reflected laser beam (Intensity) sent out by the scanner provides additional information on the surveyed object. Thanks to high working speed and a large amount of collected data, scanners have become an essential tool for a geodesist.This paper evaluates the possibility of applying Terrestrial Laser Scanning to test deformations and shifts of flagged points of concrete dam construction based on experimental measurements, including object inventory and evaluation of the dam’s concrete structure condition.
Źródło:
Journal of Ecological Engineering; 2016, 17, 4; 120-128
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Survey of the urban bell in the belfry of St. Trinity Church in Krosno
Autorzy:
Oleniacz, G.
Skrzypczak, I.
Ślęczka, L.
Świętoń, T.
Rymar, M.
Powiązania:
https://bibliotekanauki.pl/articles/106731.pdf
Data publikacji:
2017
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
volume determining
terrestrial laser scanning
określanie objętości
naziemne skanowanie laserowe
Opis:
Urban is one of the three bells in the belfry of St. Trinity Church in Krosno. It is the largest one, with diameter equal to 1,535 mm and it is commonly considered as one of the largest historical bells in Poland. The total mass of all the three bells is close to 4,200 kilograms, so the dynamic actions produced by swinging have a great effect on the supporting structure and on the tower. However, the exact weight of the biggest bell isn't known, and for safety reasons it should be estimated in order to verify the real dynamic forces affecting the structure. The paper describes the method of Urban bell’s survey using terrestrial laser scanning and a total station as a task to estimate its weight by determining its volume.
Źródło:
Reports on Geodesy and Geoinformatics; 2017, 103; 38-45
2391-8365
2391-8152
Pojawia się w:
Reports on Geodesy and Geoinformatics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of terrestrial laser scanning in the preservation of valuable architectural objects
Zastosowanie naziemnego skaning laserowy w zachowaniu cennych obiektów architektury
Autorzy:
Piech, Izabela
Klapa, Przemysław
Szatan, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2029293.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
Tematy:
terrestrial laser scanning
survey
architecture
naziemny skaning laserowy
inwentaryzacja
architektura
Opis:
In the present day, we are witnessing the dynamic development of our country. We observe a growing number of new construction investments, which are designed to meet the needs of the market. Streets are being widened to cope with the growing number of vehicles, modern office buildings and skyscrapers are being built in the largest Polish cities, which at the same time have valuable architectural objects in their oldest districts. Such objects, due to their age, are susceptible to damage, and thus to the threat that their value will be lost. Such damage may occur in the course of construction works that destabilize the soil structure, which may lead to damage to the building’s foundations and, as a result, harm or destroy the most important structural elements of the monument. Another important factor is the operation of industrial plants that emit harmful substances, which have a negative impact on façades and other external elements, such as, for example, relief sculptures. It may be difficult and complicated to remove the effects of the risks described above if the documentation necessary to carry out protection or renovation works is incomplete or insufficiently detailed. A separate issue worth discussing are architectural objects made of perishable materials such as wood [Bernat et al. 2014]. There are many objects of wooden architecture in Poland, such as: Catholic and Orthodox churches, open-air museums, and other relics of bygone eras. Apart from the obvious threat of fire and its negative effects, one can also mention the negative impact of precipitation, whether in the form of rain causing the wood to soak and, as a result, to rot, or the risk of damaging the foundations during a flood. The listed threats have a direct and indirect impact on the structure of such historical buildings. Therefore, it is important to take care of their detailed survey, with the view to preserving and maintaining them. It is also worth mentioning a large number of castles located in our country. The condition of their structures is very diverse and ranges from newly restored buildings to those with only foundations left. In all cases, it is important to obtain accurate plans and models of these building objects. This will serve to preserve their dimensions and shapes. Such data can be used to develop documentation necessary to carry out reconstruction or renovation in order to return the building to its former glory, and thus obtain another object worth seeing.
W obecnych czasach jesteśmy świadkami dynamicznego rozwoju naszego kraju. Obserwujemy, jak powstają coraz to nowe inwestycje budowlane mające na celu zaspokojenie potrzeb rynku. Przebudowywane są ulice by sprostać rosnącej ilości samochodów na drogach, powstają nowoczesne biurowce i drapacze chmur w największych miastach Polski, które to jednocześnie posiadają cenne obiekty architektury w swoich najstarszych dzielnicach. Obiekty takie z racji swojego wieku są podatne na uszkodzenia, a co za tym idzie na utratę ich walorów. Uszkodzenia takie mogą powstawać na drodze prowadzonych prac budowlanych destabilizujących strukturę gruntu, co może prowadzić do naruszenia fundamentów budowli i w efekcie spowodować uszkodzenia bądź zniszczenia najważniejszych elementów konstrukcyjnych zabytku. Istotnym czynnikiem jest też działalności zakładów przemysłowych emitujących szkodliwe substancje mające negatywny wpływ na elewacje i inne elementy zewnętrzne takie jak np. płaskorzeźby. Skutki opisanych wyżej zagrożeń są skomplikowane do usunięcia w przypadku, gdy dokumentacja niezbędna do przeprowadzenia prac zabezpieczających bądź renowacyjnych jest niekompletna lub wykonana niewystarczająco szczegółowo. Osobną kwestią jaką warto poruszyć są obiekty architektoniczne wykonane z nietrwałych materiałów takich jak np. drewno [Bernat M., et al., 2014]. Na terenie Polski zlokalizowane jest wiele obiektów architektury drewnianej takich jak: kościoły, cerkwie, skanseny i inne relikty minionych epok. Pomijając oczywiste zagrożenie jakim jest pożar oraz jego negatywne skutki, można wymienić jeszcze niekorzystny wpływ opadów atmosferycznych, czy to w postaci deszczu powodującego namakanie drewna, a w rezultacie jego butwienie czy też zagrożenie podmycia fundamentów podczas powodzi. Wymienione zagrożenia mają bezpośredni jak i pośredni wpływ na konstrukcję takich zabytków. Istotne jest więc by zadbać o ich szczegółową inwentaryzację w celu ich zachowania. Wartą poruszenia kwestią jest także spora ilości zamków zlokalizowanych na terenie naszego kraju. Stan ich konstrukcji jest bardzo zróżnicowany i oscyluje od dopiero, co odrestaurowanych obiektów do takich po których zostały już same fundamenty. We wszystkich przypadkach istotnym zagadnieniem jest pozyskanie dokładnych planów i modeli tych obiektów. Ma to na celu zachowanie ich wymiarów i kształtów. Dane takie mogą posłużyć opracowaniu dokumentacji niezbędnej do przeprowadzenia odbudowy bądź renowacji mające na celu powrót obiektu do dawnej świetności, a tym samym pozyskaniu kolejnego obiektu wartego zobaczenia.
Źródło:
Geomatics, Landmanagement and Landscape; 2021, 3; 53-64
2300-1496
Pojawia się w:
Geomatics, Landmanagement and Landscape
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of Terrestrial Laser Scanning for the purposes of preparing technical documentation in BIM technology
Autorzy:
Uchański, Łukasz
Karsznia, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/390695.pdf
Data publikacji:
2018
Wydawca:
Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
Tematy:
Terrestrial Laser Scanning
BIM
inventory works
Laser Scanning
point cloud
3D model
Opis:
Building Information Modelling (BIM) is becoming an increasingly popular solution used both for investment and for reverse engineering aimed at restoring of the original documentation of existing facilities. The reconstruction of an object including its full design properties in an interactive 3D environment makes it possible to carry out structural (including SMH – structural health monitoring) and strength analyses, as well as to provide the effi cient facility management (setting out essential parameters and conducting necessary repairs). This paper aims to assess the laser scanning performed by using an advanced pulse data-capturing device for the development of complex BIM documentation in the Water Centre Laboratory of Warsaw University of Life Sciences – SGGW. Obtained point clouds have been used to build the model for the needs of reverse engineering. Moreover, the authors evaluated the possibility of using a particular type of laser scanner to develop and update complex BIM documentation in the process of facility management.
Źródło:
Budownictwo i Architektura; 2018, 17, 3; 189-199
1899-0665
Pojawia się w:
Budownictwo i Architektura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of effectiveness of measuring concrete water dam with terrestrial laser scanners: RIEGL VZ-400, ZplusF IMAGER 5010
Autorzy:
Glowacka, A.
Noszczyk, T.
Zygmunt, M.
Gawronek, P.
Mitka, B.
Pluta, M.
Powiązania:
https://bibliotekanauki.pl/articles/62144.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
comparison
effectiveness
measurement
water dam
concrete condition
terrestrial laser scanner
monitoring
Opis:
In the span of the last ten years a major spur of evolution has occurred in the area of obtaining object spatial data. The range and form of spatial data are subject to constant technical evolution, and what comes with that – the possibilities and effectiveness of their computation rise. Terrestrial laser scanning, which is the basis for obtaining 3D data, is also a subject of constant innovation. Currently, manufacturers of terrestrial laser scanners offer a wide range of advanced measurement devices; their precision and efficiency fulfill the need of geodesic monitoring. The scientific research in this article is a comparative analysis of the application of two terrestrial laser scanners used in the measurement of a water dam in Rożnowo. The results of the comparison present the ability to compare the influence of the type of measurement device used on the results of a periodical measurement of water dams.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2014, IV/3
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of Tunnel Contour Quality Index on the Basis of Terrestrial Laser Scanning Data
Autorzy:
Dybeł, Piotr
Dybeł, Katarzyna
Cieślik, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/1845142.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
TCI
tunnel
contour quality
terrestrial laser scanning
TLS
overbreak
contour roughness
Opis:
The Tunnel Contour Quality Index (TCI) is an index established by Kim and Bruland for an effective management of a tunnel contour quality. It is estimated on a basis of measurements of two contour profiles within a single blasting round, using a laser profiler. However, the representativeness of measurement results obtained that way for the assessment of a contour quality of the entire blasting round is disputable. Terrestrial laser scanning (TLS) technology, combined with available numerical surface modeling tools, enables development of three-dimensional models of a monitored surface. The article reports results of TCI calculations based on TLS data. The presented TLS technique is based not only on selected cross-sections of the tunnel contour but also on the description of the morphology of the tunnel contour surface. The case study concerns measurements of the "Mały Luboń" tunnel niche, located in Naprawa, Poland. The TCI values for three blasting rounds were determined in accordance with Kim and Bruland’s guidelines and were compared to TCI values determined with the proposed TLS technique. On a basis of this comparison, it can be concluded that the results obtained with the TLS technique are more reliable and representative for description of the contour quality of the entire blasting round than results obtained with the laser profiling technique.
Źródło:
Studia Geotechnica et Mechanica; 2021, 43, 3; 255-269
0137-6365
2083-831X
Pojawia się w:
Studia Geotechnica et Mechanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The testing of PCL: an open-source library for point cloud processing
Autorzy:
Zygmunt, M.
Powiązania:
https://bibliotekanauki.pl/articles/100450.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
Tematy:
terrestrial laser scanning
postprocessing
Point Cloud Library
algorithm
naziemny skaning laserowy
Opis:
In the era of the rapid development of the terrestrial laser scanning technology (TLS), that facilitates the acquisition of large data volumes in the form of three-dimensional point clouds, a need arises to create modern solutions to enable effective and efficient data processing. This paper presents the PCL (Point Cloud Library). This is an Open Source project that contains many of the key algorithms for TLS data, designed for filtering, registration, estimation of function, surface reconstruction, modeling and segmentation, as well as structures for identifying and matching objects. The article discusses the structure of the project as well as its most useful modules from the point of view of the TLS data processing. It describes the format used by the PCL data storage. Also, a practical example is enclosed, as a basis for the discussion of consecutive steps of working with the library, from recording input data in the correct format to visualization of the effects of the used algorithm.
Źródło:
Geomatics, Landmanagement and Landscape; 2013, 3; 105-115
2300-1496
Pojawia się w:
Geomatics, Landmanagement and Landscape
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation of a cylindrical glass dome negative impact on a 360° field of view 2D laser scanner performance and a method for correction
Autorzy:
Wojtanowski, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/27311445.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
laser scanner
laser range finder
terrestrial laser scanning
skaner laserowy
dalmierz laserowy
skanowanie laserowe naziemne
Opis:
Although laser scanning ideas and hardware solutions are well-known to experts in the field, there is still a large area for optimization. Especially, if long-range and high-resolution scanning is considered, the smallest defects in optical quality should be perfected. On the other hand, the simplicity, reliability, and finally the cost of the solution plays an important role, too. In this paper, a very simple but efficient method of optical correction is presented. It is dedicated to laser scanners operating from inside cylindrical glass domes. Such covers normally introduce aberrations into both the laser beam and receiving optics. If these effects are uncorrected, the laser scanner performance is degraded both in terms of angular resolution and maximum range of operation. It may not be critical for short-range scanning applications; however, if more challenging concepts are considered, this issue becomes crucial. The proposed method does not require sophisticated optical solutions based on aspheric or freeform components, which are frequently used for similar purposes in imaging-through-dome correction but is based on a simple cylindrical refractive correction plate.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2023, 71, 3; art. no. e145566
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Development of Terrestrial Laser Scanning Technology and Its Applications in Mine Shafts in Poland
Technologia Laserowego Skanowania Naziemnego Zastosowania w Szybie Pionowym w Polsce
Autorzy:
Lipecki, Tomasz
Kim, Thi Thu Huong
Powiązania:
https://bibliotekanauki.pl/articles/318584.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
Terrestrial Laser Scanning
Mobile Terrestrial Laser Scanning
Polish Mining Surveying System
skanowanie laserowe
naziemne skanowanie laserowe
mobilne naziemne skanowanie laserowe
polski system geodezji górniczej
TLS
MTLS
MSS
Opis:
Laser scanners are used more and more as surveying instruments for various applications. With the advance of high precisions systems, laser scanner devices can work in most real-world environments under many different conditions. In the field of mining surveying open up a new method with data capturing. Mining industry requires precise data in order to be able to have a as-built documentation of the facility. Nowadays, the mines are increasingly deepened. For the safe operation of the underground mine, special attention is paid to vertical transport and a set of devices supporting it, mounted in mining shafts. All components must meet stringent criteria for proper operation. The classic geodetic measurements and mechanical tests are long-lasting and do not always provide the full range of information needed about the condition of the object. This paper reports about terrestrial laser scanning method and system mobile terrestrial laser scanning, which has been applied at many vertical shafts in mines of Poland for determining geometric deformation of vertical shaft elements. This system gives high precision 1–3 mm in every horizontal cross-section. Processing time is very quickly and need only few staff to implement all system.
Skanery laserowe są coraz częściej używane jako urządzenia geodezyjne do różnych zastosowań. Wraz z rozwojem systemów o wysokiej precyzji, skanery laserowe mogą pracować w większości rzeczywistych środowisk w wielu różnych warunkach. W dziedzinie geodezji górniczej otwierają się nowe metody gromadzenia danych. Górnictwo wymaga precyzyjnych danych, aby móc posiadać dokumentację powykonawczą obiektu. Obecnie kopalnie są coraz bardziej pogłębione. Dla bezpiecznej eksploatacji podziemnej kopalni szczególną uwagę przywiązuje się do transportu pionowego oraz zespołu wspierających urządzeń, zamontowanych w szybach górniczych. Wszystkie komponenty muszą spełniać rygorystyczne kryteria prawidłowego działania. Klasyczne pomiary geodezyjne i badania mechaniczne są długotrwałe i nie zawsze dostarczają pełnego zakresu potrzebnych informacji o stanie obiektu. W artykule opisano metodę naziemnego skanowania laserowego oraz systemowe mobilne naziemne skanowanie laserowe, które zostało zastosowane w wielu pionowych szybach w polskich kopalniach do wyznaczania odkształceń geometrycznych pionowych elementów szybów. System ten daje wysoką precyzję 1-3 mm w każdego przekroju poziomym. Czas przetwarzania jest bardzo szybki, a do wdrożenia całego systemu potrzeba tylko kilku pracowników.
Źródło:
Inżynieria Mineralna; 2020, 1, 2; 301-310
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Utilization of terrestrial laser scanner Leica scanstation for stocktaking measurements on an example of a spherical dome
Autorzy:
Hejbudzka, K.
Kamiński, W.
Powiązania:
https://bibliotekanauki.pl/articles/225573.pdf
Data publikacji:
2009
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
naziemny skaner laserowy
kopuły sferyczne
modelowanie
terrestrial laser scanner
spherical dome
modeling
Opis:
The work presents results of using the technology of terrestrial laser scanning in stocktaking measurements of spherical domes. The parameter subject to special evaluation is the value of the dome's diameter set on primary Ievel, which is compared with the theoretical value obtained from the technical project of the object. The measurements in several variants were made with the use of Leica ScanStation laser scanner bought by the Geodesy Institute. In office works the original manufacturer's programme (Cyclone v. 5.6) was used. The programme enables modeling the obtained observation results and making basic measurements, such as, among other, measuring the value of the diameter on the cross-section subject to the analysis. The results obtained with the use of laser scanning encourage to further detailed theoretically-empirical analysis.
Źródło:
Reports on Geodesy; 2009, z. 2/87; 145-152
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
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