Res. Agr. Eng., 2013, 59(10):S65-S70 | DOI: 10.17221/60/2012-RAE

Determining the guidance system accuracy with the support of a large GNSS datasetOriginal Paper

V. Rataj, J. Galambošová, M. Vašek
Department of Machines and Production Systems, Faculty of Engineering, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic

Several methods are used presently to assess the accuracy of machinery guidance systems. However, these offer a limited number of records and are time and cost consuming. As the machinery is often equipped with a monitoring system for the management purposes, these data can be used. The aim of this work was to develop and verify a method to determine the accuracy of the machinery guidance systems based on a large dataset obtained from the machinery monitoring system. The proposed method uses the transformation of global navigation satellite systems (GNSS) data into a rectangular coordinate system SJTSK (National projection system - Krovak projection). Based on the geometry principle, the ideal line can be determined, and afterwards, the off-track error of each actual position can be calculated. After the verification of this method, it can be concluded that it brings benefits in terms of further use of the data from the monitoring systems, the estimation of the error based on a robust dataset, elimination of subjective and measurement method errors, as well as spatial localisation of the off-track errors at the field.

Keywords: off-track error; geometry; rectangular coordinate system SJTSK

Published: December 31, 2013  Show citation

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Rataj V, Galambošová J, Vašek M. Determining the guidance system accuracy with the support of a large GNSS dataset. Res. Agr. Eng. 2013;59(Special Issue):S65-70. doi: 10.17221/60/2012-RAE.
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