Geophysical Survey Capabilities in Wooded Sites with Robust Robotic Total Station Technology

2003 ◽  
Author(s):  
John E. Foley ◽  
Robert Mehl ◽  
Martin Miele
Keyword(s):  
Geophysical Survey ◽  
Total Station ◽  
Robotic Total Station

scholarly journals Point-Cloud Models of Historical Barns – Spatial Discrepancies of Laser Scanning versus Robotic Total Station

10.29007/2493 ◽  
2020 ◽  
Author(s):  
Gustavo Maldonado ◽  
Marcel Maghiar ◽  
Brent Tharp ◽  
Dhruv Patel
Keyword(s):  
Service Learning ◽  
Point Cloud ◽  
Laser Scanning ◽  
3D Point Cloud ◽  
Spatial Accuracy ◽  
Total Station ◽  
Cloud Models ◽  
Bulloch County ◽  
Southern University ◽  
Robotic Total Station

This study considers the generation of virtual, 3D point-cloud models of seven deteriorating historical, agricultural barns in Bulloch County, Georgia, USA, for preservation purposes. The work was completed as a service-learning project in a course on Terrestrial Light Detection and Ranging (T-LiDAR), offered at Georgia Southern University. The resulting models and fly-through videos were donated to Bulloch County Historical Society and to the Georgia Southern Museum, to make them available to the general public and future generations. Additionally, one of the seven barns was selected to be extensively measured to estimate the relative spatial accuracy of all seven resulting 3D point-cloud models, with respect to measurements completed with a highly accurate instrument. Three accurate benchmarks were established around it for georeferencing purposes. The positions of 44 points were measured in the field via an accurate, one- second, robotic total-station (RTS) instrument. Also, the coordinates of the same points were acquired from within georeferenced and non-georeferenced point-cloud models. These points defined 259 distances. They were compared to determine their discrepancy statistics. It was observed that this process produced virtual models with an approximate maximum spatial discrepancy of one-half inch (0.5 in) with respect to measurements performed by a highly accurate RTS device. There were no substantial differences in the relative accuracies of the georeferenced and non-georeferenced models.

Landslide monitoring using terrestrial laser scanner and robotic total station in Rancabali, West Java (Indonesia)

2017 ◽  
Author(s):  
Irwan Gumilar ◽  
Alif Fattah ◽  
Hasanuddin Z. Abidin ◽  
Vera Sadarviana ◽  
Nabila S. E. Putri ◽  
...  
Keyword(s):  
Laser Scanner ◽  
Landslide Monitoring ◽  
Terrestrial Laser Scanner ◽  
West Java ◽  
Total Station ◽  
Robotic Total Station

Robotic total station for microtopographic mapping: an example from the Northern Great Plains

2006 ◽  
Vol 13 (2) ◽  
pp. 91-102 ◽  
Author(s):  
Kenneth L. Kvamme ◽  
Eileen G. Ernenwein ◽  
Christine J. Markussen
Keyword(s):  
Great Plains ◽  
Northern Great Plains ◽  
Total Station ◽  
Robotic Total Station

scholarly journals Applicability and Analysis of the Results of Non-Contact Methods in Determining the Vertical Displacements of Timber Beams

2021 ◽  
Vol 11 (19) ◽  
pp. 8936
Author(s):  
Boštjan Kovačič ◽  
Luka Štraus ◽  
Mateja Držečnik ◽  
Zoran Pučko
Keyword(s):  
Construction Projects ◽  
Laser Scanning ◽  
Laser Scanner ◽  
Meteorological Conditions ◽  
Total Station ◽  
Engineering Geodesy ◽  
Vertical Displacements ◽  
Robotic Total Station ◽  
Timber Beams

Determining the displacements and consequent deformations of structures is a demanding branch of engineering. Displacements are most often determined by geodetic methods, among which high-precision non-contact methods have recently taken the lead. Engineering geodesy is an indispensable part of construction projects. In the desire for efficient and fast measurements, the technology of terrestrial laser scanning (TLS) and the use of robotic total station (RTS) and other geodetic methods are becoming more and more useful for engineers. In the presented study, we focused on the measurement and comparison of vertical displacements with various mentioned equipment and the determination of the influence of meteorological conditions on the displacements of timber beams that we used to perform the experiment. Measurements were performed both in the laboratory and outdoors. A novelty in the work was the use of a TLS scanner to determine the evaluation of small value displacements and the analysis of the usability of geodetic measuring equipment. In the Materials and Methods section, we describe the equipment used and the characteristics of the beams. The Results section describes the experimental outcomes, which include the performance of experimental analysis of vertical displacements of timber beams under different meteorological conditions. Altogether, the results consist of geodetic measurements and the processing of measured data. The results of measurements of vertical displacements with a terrestrial laser scanner were compared with the results obtained with a robotic total station were evaluated and compared with the displacements calculated from static analysis and the results of other methods used.

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