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Wyświetlanie 1-15 z 23
Tytuł:
Investigation of using total station with ATR system in monitoring of displacements
Autorzy:
Woźniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/224440.pdf
Data publikacji:
2006
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
tachimetr elektroniczny
przemieszczenie
ATR
total station
displacement
automatic target recognition
monitoring measurements
Opis:
New total stations equipped with ATR (Automatic Target Recognition) system help in automatic move of the telescope of the instrument during monitoring measurements. The accuracy effects of using ATR system in precise measurements were controlled in laboratory and field conditions for standard prism and cube corner reflector. This paper will present the results of testing and the conclusions from the monitoring measurements carried out on typical objects using instrument Leica TDA 5005.
Źródło:
Reports on Geodesy; 2006, z. 1/76; 221-226
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Control measurements using motorized total stations and field computer
Autorzy:
Woźniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/224993.pdf
Data publikacji:
2007
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
system pomiarowo-obliczeniowy
ATR
pomiary geodezyjne
automatic target recognition
Servo-TC System
engineering surveying
Opis:
In the area of measurements monitoring the position of checkpoints in space there are new instrumental solutions being developed: servo-motors, ATR (automatic target recognition), PR (power search), etc. These elements enable to accelerate the measuring process considerably, make the results more objective, help avoid target identification mistakes, introducing the possibility to conduct "continuous" measurements supervised by the operational system of an instrument or a field computer. The article presents the monitoring measurement results obtained by means of measuring systems built in the Institute of Applied Geodesy, under the author's supervision.
Źródło:
Reports on Geodesy; 2007, z. 1/82; 387-393
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring of construction shape changes using reflectorless techniques
Autorzy:
Woźniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/225115.pdf
Data publikacji:
2008
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
technika bezreflektorowa
reflectorless techniqe
Opis:
New total stations are equipped with two types of distance meters: IR (infra red) and (reflectorless). The option RL helps monitor the shape measurements of controlled surface of dozens of control points. It is possible to measure the distance directly to the object. The accuracy effects of using this system in precise measurements were controlled in laboratory and field conditions for reflective targets at different incidence angles. This paper presents the testing results and investigation conclusions concerning Leica TCRP 1202 and TCR 407 instruments.
Źródło:
Reports on Geodesy; 2008, z. 1/84; 93-97
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on accuracy obtained in laer scanning measurement Process
Autorzy:
Woźniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/225647.pdf
Data publikacji:
2010
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
skanowanie laserowe
Budynek Główny Politechniki Warszawskiej
laser scanning
Main Building of Warsaw Uniwersity of Technology
Opis:
The paper presents the results of performed accuracy analysis for the spatial models obtained during the laser scanning process. The scan of the different elements beginning from the regular geometric surfaces to built up architectonical forms made at The Main Building of the Warsaw University of Technology were the object of conduction analysis. The most technologically advanced and accrued geodetic instruments like: terrestrial laser scanner Z+F Imager 5006, total station Leica TCRP 1201+ and RMS (Ramote Measuring System) set on the base of theodolite Wild T2002 were used to realize the project. The real precision of the new survey technique could rise doubts and need to be check during the specialized researches. Improvement of measurement technique and data post processing also should be carried out. In spite of a large point number acquire from scanning and additionally intensity value of surveyed objects. The model handling is supported by specialized system software tools. Perfomed analysis deliver data which suggest that technique wchich were used is suitability for presicie determination of engineering object geometry and for deformation determination. The technology accuracy were estimated for the particular case tasks.
Źródło:
Reports on Geodesy; 2010, z. 1/88; 37-43
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring of dynamic movements of Hans Glacier control points using SmartStation
Autorzy:
Woźniak, M.
Adamek, A.
Powiązania:
https://bibliotekanauki.pl/articles/224594.pdf
Data publikacji:
2007
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
lodowiec Hansa (Spitsberg)
Smart Station
Hans glacier (Svalbard)
Opis:
The paper presents the results of investigations on the Hans glacier on Svalbard. The Artic conditions reąuired the application of a very specific surveying technology to make surveys of displacenients of an extensive and fast changing object. The technology that was implemented should combine observations made on extended areas (GPS) with classical observations of high precision. The SmartStation equipment which has been used to conduct the experiment of monitoring dynamie movements of a group of points situated on the Hans glacier fulfills this requirement. The surveys (quasi-continuous) were conducted in a period of three days. The paper contains the results of surveys as well.
Źródło:
Reports on Geodesy; 2007, z. 2/83; 89-93
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Applying non-standard instrumental solutions to examine vertical displacements in engineering constructions as examplified by the monitored supporting structure of a reactor
Autorzy:
Woźniak, M.
Jastrzębski, Sł.
Powiązania:
https://bibliotekanauki.pl/articles/224997.pdf
Data publikacji:
2007
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
przemieszczenie pionowe konstrukcji
agregat chemiczny
aparat reakcyjny
reaktor
pomiary geodezyjne
vertical displacements of constructions
reactor
engineering surveying
Opis:
In measurements of vertical displacements of constructions, when direct access to checkpoints is very difficult or life threatening, one should apply the measuring technology which would fulfill accuracy requirements and yet avoid all the dangers. The technology in question could involve special code levelling staffs instead of classical solutions. The paper presents tests involving the above method in measuring deformations of the supporting structure of a chemical reactor right after a building disaster or in the trial load of a rebuilt structure. Examples of other positive applications of such a solution are also shown.
Źródło:
Reports on Geodesy; 2007, z. 1/82; 404-407
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geodetic measuring methods and shape estimation of concrete thin shell surface
Autorzy:
Woźniak, M.
Woźniak, K.
Powiązania:
https://bibliotekanauki.pl/articles/224870.pdf
Data publikacji:
2011
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
geometria powierzchnii
pomiary geodezyjne
skanowanie laserowe
geometry of the surface
surveying
laser scanning
Opis:
The geodetic measurements of surface geometry can be performed with new laser scanning technologies. This paper presents the results of such measurements of external surface of cooling tower using Leica TCRP 1201+ tacheometer and Image Station 03 video tacheometer. The overlapping data sets of consecutive scans were investigated in order to propose a method to compound partial surface scans. The data analysis included estimation of systematic errors in common sections of scans. The results of obtained surfaces were compared with precise point measurements using Leica TCRP 1201+.
Źródło:
Reports on Geodesy; 2011, z. 2/91; 81-88
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of stability of precise geodetic instruments used in deformation monitoring
Autorzy:
Woźniak, M.
Odziemczyk, W.
Powiązania:
https://bibliotekanauki.pl/articles/106803.pdf
Data publikacji:
2017
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
geometry of instrument’s axis
instrument stand
deformation monitoring
geodetic control measurements
geometria osi instrumentu
stojak na instrumenty
monitorowanie deformacji
pomiary kontrolne geodezyjne
Opis:
Monitoring systems using automated electronic total stations are an important element of safety control of many engineering objects. In order to ensure the appropriate credibility of acquired data, it is necessary that instruments (total stations in most of the cases) used for measurements meet requirements of measurement accuracy, as well as the stability of instrument axis system geometry. With regards to the above, it is expedient to conduct quality control of data acquired using electronic total stations in the context of performed measurement procedures. This paper presents results of research conducted at the Faculty of Geodesy and Cartography at Warsaw University of Technology investigating the stability of “basic” error values (collimation, zero location for V circle, inclination), for two types of automatic total stations: TDA 5005 and TCRP 1201+. Research provided also information concerning the influence of temperature changes upon the stability of investigated instrument’s optical parameters. Results are presented in graphical analytic technique. Final conclusions propose methods, which allow avoiding negative results of measuring tool-set geometry changes during conducting precise deformation monitoring measurements.
Źródło:
Reports on Geodesy and Geoinformatics; 2017, 104; 79-90
2391-8365
2391-8152
Pojawia się w:
Reports on Geodesy and Geoinformatics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring of the wut grand hall roof in conditions of high temerature changes
Autorzy:
Woźniak, M.
Odziemczyk, W.
Powiązania:
https://bibliotekanauki.pl/articles/224691.pdf
Data publikacji:
2009
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
geometria dachu
pomiary geometryczne
Politechnika Warszawska
geometry of roof
geometrical measurements
Warsaw University of Technology
Opis:
Geodetic control measurements of changes in geometry an object should satisfy high accuracy and reliability. New techeometers equipped with Automatic Target Recognition automatically moves the telescope to the prism and supports control point measurements. The accuracy of using an ATR system and the stability of an instrument in precise measurements were present the results of monitoring measurement were controlled in laboratory and field conditions. This paper will present the results of monitoring measurements with a Leica TDA 5005 during the investigations of roof geometry in conditions of high temperature changes.
Źródło:
Reports on Geodesy; 2009, z. 1/86; 105-110
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geodetic conditions of Warsaw underground extension
Autorzy:
Woźniak, M.
Budrewicz, C.
Powiązania:
https://bibliotekanauki.pl/articles/224995.pdf
Data publikacji:
2007
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
Metro Warszawskie
rozbudowa metra
pomiary geodezyjne
Warsaw underground
underground railway system
underground extension
engineering surveying
Opis:
The construction of an underground railway system is a very demanding building investment. It requires great concentration of a building potential over an exceptionally vast area. On the one hand, the building site covers a vast densely built-up urban area and on the other, a tunnel is actually excavated over a small space covered by its "front" and interior. The above conditions are extraordinary both because of the technical difficulties of the works to be carried out and high precision required by individual construction elements. Another problem is the disturbance of geotechnical stability of the ground and the ensuing dangers posed for the adjacent buildings. The paper presents all basic elements of geodetic activities connected with the underground construction, from the designing stage up to construction works.
Źródło:
Reports on Geodesy; 2007, z. 1/82; 395-401
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of the accuracy of geodetic measurements using reflectorless techniques
Autorzy:
Woźniak, M.
Jastrzębski, S.
Wojciekowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/224683.pdf
Data publikacji:
2009
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
technika bezlustrowa
tachimetry
pomiary geodezyjne
reflectorless techniques
tacheometers
surveing
Opis:
This paper presents the results of investigation of geometry accuracy using reflectorless techniques. Experimental measurenents were carried out the polygon using new tacheometers and a monitoring application program. The results of experimental measurements were analyzed and presented graphicall in Surfer 8. Contour maps and isometric projections of the surface of imperfection are elements of the present study. It presents the results of investigation of measurements accuracy in geometry according to various geometry conditions.
Źródło:
Reports on Geodesy; 2009, z. 1/86; 97-103
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Control network analysis of the dam "Wióry"
Autorzy:
Walo, J.
Szpunar, R.
Woźniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/225005.pdf
Data publikacji:
2007
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
zapora ziemna
sieć kontrolna
Wióry
pomiary geodezyjne
earth dam
control network
engineering surveying
Opis:
The obtained results of the test measurements in the control network of the dam Wióry show that combined usage of length measurements and GPS observations enables to obtain high accuracy and reliability in defining point coordinates. The real determination accuracy of checkpoint displacements in this type of networks is at the level of (plus minus) 2-3mm. However, it should be added that in small networks covering an area up to 1 km in radius, classical measurements (most of all, length measurements) enable to obtain higher accuracies in determining point coordinates, obviously on condition that the net structure is well-designed and length measurement is possible. Having analyzed the obtained results, one can also formulate the following conclusions: - the assumed structure of a modified test network shows effective accuracy both for EDM measurements and GPS observations, - satellite measurements enable combined and direct observation of points between which there is no sight line. It is especially important in the case of reference points which are usually located around the monitored object, and it is rarely possible to link them by means of classical measurements; - GPS measurements make it possible to check the monitored network independently, at least limiting the incidence of major and systematic errors in processing the results and defining displacement values; so GPS observations may, in the case of small control networks, be treated as control measurements made periodically (e.g. every year); - accuracy assessment made for TDA5005 tachymeter observations even in the case of considerable target inclinations, made by means of standard reflectors, attested reflexive foil and CCR fulfills monitoring requirements of specific point (targets), enabling to obtain an accuracy of the (plus minus) 0.5 mm range in relation to reference points; - linear measurements in the test network of Wiory, made by means of a TDA5005 tachymeter and high precision reflectors can be accomplished within 2-3 days.
Źródło:
Reports on Geodesy; 2007, z. 1/82; 376-380
0867-3179
Pojawia się w:
Reports on Geodesy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of video-tacheometric technology for documenting and analysing geometric features of objects
Autorzy:
Woźniak, M.
Świerczyńska, E.
Jastrzębski, S.
Powiązania:
https://bibliotekanauki.pl/articles/106791.pdf
Data publikacji:
2015
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
video-tacheometric technology
reflectorless technology
lens distortion
photogrammetry
scanning
technologia video-tachimetryczna
technologia bezreflektorowa
zniekształcenia obiektywu
fotogrametria
skanowanie
Opis:
This paper analyzes selected aspects of the use of video-tacheometric technology for inventorying and documenting geometric features of objects. Data was collected with the use of the video-tacheometer Topcon Image Station IS-3 and the professional camera Canon EOS 5D Mark II. During the field work and the development of data the following experiments have been performed: multiple determination of the camera interior orientation parameters and distortion parameters of five lenses with different focal lengths, reflectorless measurements of profiles for the elevation and inventory of decorative surface wall of the building of Warsaw Ballet School. During the research the process of acquiring and integrating video-tacheometric data was analysed as well as the process of combining “point cloud” acquired by using video-tacheometer in the scanning process with independent photographs taken by a digital camera. On the basis of tests performed, utility of the use of video-tacheometric technology in geodetic surveys of geometrical features of buildings has been established.
Źródło:
Reports on Geodesy and Geoinformatics; 2015, 99; 28-43
2391-8365
2391-8152
Pojawia się w:
Reports on Geodesy and Geoinformatics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of practical and theoretical accuracy of wireless indoor positioning system Ubisense
Autorzy:
Woźniak, M.
Odziemczyk, W.
Nagórski, K.
Powiązania:
https://bibliotekanauki.pl/articles/106897.pdf
Data publikacji:
2013
Wydawca:
Politechnika Warszawska. Wydział Geodezji i Kartografii
Tematy:
positioning systems
RTLS
point tracking
systemy pozycjonowania
punkt śledzenia
Opis:
This paper presents the accuracy investigation results and functionality of Ubisense RTLS positioning system. Three kinds of studies were conducted: test of calibration accuracy, analysis of theoretical accuracy of the coordinates determination as well as accuracy measurements in field conditions. Test of calibration accuracy was made with several different geometric constellation of reference points (tag positions). We determined changes of orientation parameters of receivers and disturbance of positioning points coordinates against chosen reference points constellations. Analysis of theoretical accuracy was made for several receivers spatial positions and their orientations. It allowed to indicate favourable and unfavourable measurement area considering accuracy and reliability. Real positioning accuracy of the Ubisense system was determined by comparison with coordinates measured using precise tacheometer TCRP1201+. Results of conducted experiments and accuracy analysis of test measurement were presented in figures and diagrams.
Źródło:
Reports on Geodesy and Geoinformatics; 2013, 95; 36-48
2391-8365
2391-8152
Pojawia się w:
Reports on Geodesy and Geoinformatics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 23

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