Accuracy Measurement Determination on Different Distances Using Geodetic Network Measurement and Adjustment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00333749" target="_blank" >RIV/68407700:21110/19:00333749 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.5593/sgem2019/2.2/S09.004" target="_blank" >http://dx.doi.org/10.5593/sgem2019/2.2/S09.004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2019/2.2/S09.004" target="_blank" >10.5593/sgem2019/2.2/S09.004</a>

Result language

angličtina

Original language name

Accuracy Measurement Determination on Different Distances Using Geodetic Network Measurement and Adjustment

Original language description

The paper focuses on the experimental determination of the accuracy of automatic angular targeting of total stations. The measurements were carried out with Trimble S6 HP and Trimble S8 HP robotic total stations owned by the Department of Special Geodesy at the Faculty of Civil Engineering, CTU in Prague. Accuracy of targeting was determined with use of both laboratory and outdoor experimental geodetic networks. The laboratory micronetworks were two. One was made up of 10 points with a length of sight from 1.8 m to 3.1 m, and the other consisted of 6 points with sight lengths from 2.3 m to 5.3 m. The outdoor network was made up of 6 points with a length of 30 m. The geodetic measurements were carried out from each point to all the other neighboring points of the network, as a target was used the Leica mini prism GMP101. Accuracy of automatic targeting was then determined by the least squares adjustment method with use of the GNU Gama software. The resulting aposteriori standard deviations of horizontal directions, zenith angles and slope distances characterize the accuracy of automatic targeting and measurement, at very short lengths of sights were achieved higher (worse) values of standard deviations than the manufacturer stated. At larger distances in the outdoor network, the standard deviations responded the manufacturer's parameters. The results verify the functionality and accuracy of the automatic targeting, while pointing to the need to consider worse accuracy for short lengths. It is also an interesting and reliable way of verifying (or directly determining) the achievable accuracy in conditions corresponding to the situation of use and therefore the reliability of the derived standard deviations is very high.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

19th International Multidisciplinary Scientific GeoConference SGEM 2019

ISBN

978-619-7408-80-5

ISSN

1314-2704

e-ISSN

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Number of pages

6

Pages from-to

25-30

Publisher name

STEF92 Technology Ltd.

Place of publication

Sofia

Event location

Albena

Event date

Jun 30, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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