Analiza postopkov dolocitve koordinat ekscentricnim signalom v D96/TM koordinatnem sistemu

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Language:	Slovenian
Year of publishing:	2009
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FGG - Faculty of Civil and Geodetic Engineering
Publisher:	[B. Bogatez]
UDC:	528.236(043.2)
COBISS:	4467809
Views:	1901
Downloads:	451
Average score:	0 (0 votes)
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Secondary language:	English
Secondary title:	Analysis of procedures of eccentric signals coordinates determination in the D96/TM coordinate system
Secondary abstract:	In the year 2008 the use of the new state horizontal coordinate system D96/TM in Slovenia has started. Because of the wide use of GNSS technologies for the position determination, geodetic points in the classic sense of the word are loosing their importance. Several trigonometric points have in their direct vicinity an eccentric signal which are used by surveyors as orientation points. In the old coordinate system geodetic and their eccentric points were determined by the Geodetska uprava (Geodetic administration) whereas with the transition to the new coordinate system this doesn’t happen any more. In the Directions for the performing of the classic survey measurements in the new state coordinate system it is written that “the orientation is ensured by well seen points of the reference network”. This is not always possible. Sometimes there are not enough measurement net’s points available, they are badly distributed or they are not visible among them so we have to stabilize and observe a higher number of points than necessary. When we work several times on the same area, which is usal to the majority of the Slovenian companies, it makes sense to define the coordinates of the eccentric signals of the trigonometric points in the new coordinate system. In the graduation thesis we are especially interested in the possibilities for the coordinate determination of the eccentric signals, from the quality and economic point of view as well as to find out which is the most proper approach. The coordinates are determined in two ways: with transformation and with direct field measurements. Afterwards the continuation of the thesis comes on it own: how can we determine the coordinates of the eccentric signal in the easiest way to find the desired precision, which is the most proper transformation procedure, why is the transformation’s precision surprisingly low, which signals can we transform and which is the level of precision of the coordinates of the eccentric signals in the old coordinate system.
Secondary keywords:	graduation thesis;geodesy;orientation point;transformation;comparison of precision;VRS;
File type:	application/pdf
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. Ljubljana, Fakulteta za gradbeništvo in geodezijo
Pages:	XI, 65 str., pril.
Type (ePrints):	thesis
Title (ePrints):	Analysis of procedures of eccentric signals coordinates determination in the D96/TM coordinate system
Keywords (ePrints):	orientacijska točka;transformacija;primerjava natančnosti;VRS
Keywords (ePrints, secondary language):	orientation point;transformation;comparison of precision;VRS
Abstract (ePrints):	Z letom 2008 smo v Sloveniji uvedli nov državni horizontalni koordinatni sistem D96/TM. Zaradi vedno bolj razširjene uporabe tehnologij GNSS za določitev položaja, geodetske točke v klasičnem smislu izgubljajo pomen. Veliko število trigonometričnih točk ima v svoji neposredni bližini ekscentrični signal, ki so geodetom služili kot orientacijske točke pri delu na terenu. V starem koordinatnem sistemu je geodetske točke in njihove ekscentre vzpostavila Geodetska uprava, kar se s prehodom na nov koordinatni sistem ne dogaja več. V Navodilu za izvajanje klasične geodetske izmere v novem državnem koordinatnem sistemu piše, da “orientacijo zagotavljajo dobro vidne točke izmeritvene mreže”. To ni vedno možno. Včasih je točk izmeritvene mreže premalo, so slabo razporejene ali niso med seboj vidne, ter moramo stabilizirati in opazovati večje število točk kot bi bilo sicer potrebno. Ko delamo večkrat na istem območju, kar se dogaja večini geodetskim podjetjem v Sloveniji, postaja smiselna določitev koordinat ekscentričnim signalom trigonometričnih točk v novem koordinatnem sistemu. V diplomski nalogi nas predvsem zanima kakšne so možnosti za določitev koordinat ekscentričnim signalom, kakšna je kvaliteta in kakšna ekonomičnost, ter kateri je najbolj primeren pristop. Koordinate določujemo na dva načina: s transformacijo in z merjenjem. Nato se nam nadaljevanje naloge ponuja kar samo od sebe: kako lahko signal najlažje izmerimo, da dobimo željeno natančnost, katera je najbolj primerna transformacija, zakaj je pri transformacijah natančnost presenetljivo slaba, katere signale lahko transformiramo, ter kolikšna je natančnost koordinat ekscentričnih signalov v starem koordinatnem sistemu.
Abstract (ePrints, secondary language):	In the year 2008 the use of the new state horizontal coordinate system D96/TM in Slovenia has started. Because of the wide use of GNSS technologies for the position determination, geodetic points in the classic sense of the word are loosing their importance. Several trigonometric points have in their direct vicinity an eccentric signal which are used by surveyors as orientation points. In the old coordinate system geodetic and their eccentric points were determined by the Geodetska uprava (Geodetic administration) whereas with the transition to the new coordinate system this doesn’t happen any more. In the Directions for the performing of the classic survey measurements in the new state coordinate system it is written that “the orientation is ensured by well seen points of the reference network”. This is not always possible. Sometimes there are not enough measurement net’s points available, they are badly distributed or they are not visible among them so we have to stabilize and observe a higher number of points than necessary. When we work several times on the same area, which is usal to the majority of the Slovenian companies, it makes sense to define the coordinates of the eccentric signals of the trigonometric points in the new coordinate system. In the graduation thesis we are especially interested in the possibilities for the coordinate determination of the eccentric signals, from the quality and economic point of view as well as to find out which is the most proper approach. The coordinates are determined in two ways: with transformation and with direct field measurements. Afterwards the continuation of the thesis comes on it own: how can we determine the coordinates of the eccentric signal in the easiest way to find the desired precision, which is the most proper transformation procedure, why is the transformation’s precision surprisingly low, which signals can we transform and which is the level of precision of the coordinates of the eccentric signals in the old coordinate system.
Keywords (ePrints, secondary language):	orientation point;transformation;comparison of precision;VRS
ID:	8310874