Concept of measuring and calculation system, based on electronic clinometers to determine the geometry of railway track in the vertical plane

• Autorzy: Strach M. , Lenda G.
• Języki publikacji: EN

Abstrakty

EN

Geodetic investments support in the scope of modernization the existing sections of Railways and building new ones is associated with the work of high accuracy. For this reason, Surveying teams use the latest technological solutions, both in terms of hardware and software. Among the rail surveying systems dedicated for railway areas, there are trolleys equipped with GNSS Satellite receivers. Unfortunately, the GNSS system is not sufficiently accurate in determining the Height of the railway track. Therefore, the surveying work is often broken down into two stages. In the situational surveys total stations or GNSS receivers are used, and in the surveys of height, Geometric levelling is applied. The article describes the possibility of using an electronic level in Order to eliminate cumbersome levelling surveys. A clinometer used in the surveys firstly had been Subjected to author's laboratory tests verifying its accuracy and allowing its calibration. During the Field tests, the selected section of the track was measured using a level, and additional standard Surveys were carried out using geometric precision levelling. A computational method was also Suggested, allowing for the determination of the heights of points, based on the measured slopes. The method is based on integrating a continuous model of slopes, interpolated by a set of polygonal Chains. The study conducted accuracy tests both of the computational method itself as well as Combined, survey and computational method for determining the height.

Słowa kluczowe

EN

surveying; application; automation; measurement; algorithm; infrastructure; system

PL

geodezja; wniosek; automatyzacja; pomiar; algorytm; infrastruktura; system

• Wydawca: Zarząd Główny Stowarzyszenia Geodetów Polskich
• Czasopismo: Archiwum Fotogrametrii, Kartografii i Teledetekcji
• Rocznik: 2011
• Tom: Vol. 22
• Strony: 389--399
• Opis fizyczny: Bibliogr. 10 poz.

Twórcy

autor

Strach M.

• Department of Engineering Surveying and Civil Engineering, Faculty of Mining Surveying and Environmental Engineering, AGH University of Science and Technology, 30-059 Kraków, al. Mickiewicza 30

autor

Lenda G.

• Department of Engineering Surveying and Civil Engineering, Faculty of Mining Surveying and Environmental Engineering, AGH University of Science and Technology, 30-059 Kraków, al. Mickiewicza 30

Bibliografia

• References from Journals:
• Gocał, J., 1981. Okreslanie kształtu elementu konstrukcyjnego maszyny sposobem aproksymacji odchylen stycznych, Zeszyty Naukowe AGH, Geodezja, Vol. 62, Kraków.
• Gocał, J., Lenda, G. (2003). Determination of the shape of a rail course on the basis of changes of longitudinal inclination observed continuously. Polish Academy of Sciences, Photogrammetry and Monitoring of Environment, Vol. 40, pp. 5–13, Kraków.
• References from Books:
• De Boor, C., 1978. A practical guide to splines. Springer-Verlag, New York
• Fortuna, Z., Macukow, B., Wasowski, J., 2001. Metody numeryczne. WNT, Warszawa.
• Kiciak, P., 2000. Podstawy modelowania krzywych i powierzchni. WNT, Warszawa.
• Kincaid, D., Cheney, W., 2006. Analiza numeryczna, WNT, Warszawa.
• References from Other Literature:
• D-19, 2000. Instrukcja o organizacji i wykonywaniu pomiarów w geodezji kolejowej. PKP S. A., Warszawa.
• Id-14 (D-75) (2005). Instrukcja o dokonywaniu pomiarów, badan i oceny stanu torów. PKP PLK S. A., Warszawa.
• Strach, M., 2003. Ocena mo_liwosci wykorzystania techniki satelitarnej RTK GPS do regulacji osi torów kolejowych. PhD thesis, AGH Kraków.
• References from websites:
• http://www.vti.fi/en/products/inclinometers/inclinometers/ (technical data, accessed 01 April 2011)