Naslov
An automated hydrographic system for inland waterway surveys

Autori
Vukadin, Predrag

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), stručni

Izvornik
The 12th International Symposium of the Hydrographic Society HYDRO 2001, Proceedings / Harris, Phil - Norwich : University of East Anglia, Norwich, UK, 2001

Skup
The 12th International Symposium of the Hydrographic Society HYDRO 2001

Mjesto i datum
Norwich, Ujedinjeno Kraljevstvo, 27.03.2001. - 29.03.2001

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Hydrographic survey; automated system; inland waterway

Sažetak
Faced with a problem of inland waterways maintenance, Hrvatske vode (Croatian waters), governmental water resources management agency, engaged Brodarski institut to design and deliver two river survey boats. As the part of a project, low cost custom designed hydrographic survey system was designed, built, installed, tested and commissioned to the customer. The system was intended for inland waterway survey, but was to be fully applicable for dredging planning and survey. It is to be used in shallow water (0.5 to 20 m with majority of depths in 3-7 m range) with wide range of survey speeds.The designed system includes high accuracy single-beam, single-frequency echo sounder, GPS positioning and PC Windows based hydrographic survey software. The possibilities for heave-pitch-roll (HPR) corrections are provided although HPR sensor is not delivered in this phase of the project. High precision RTK GPS positioning is used for determining the real time water levels. The precise height above the ellipsoid available from RTK GPS is converted directly in height above the chart datum, thus eliminating the need for any additional water level gauge data. The system is designed and tested to be capable of: • Planning and creating survey lines and areas • Automatically logging survey data along planned survey lines • Correcting raw survey data for draft, sound velocity and GPS antenna position variations • Editing raw survey data • Displaying survey data as cross sections, contours and 3-D models • Calculating volumes between contours • Displaying planned and survey data against background files (e.g. maps) • Importing and exporting data and background files The system is installed in flight cases, is completely portable, easy to operate, set-up and maintain.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Geodezija

POVEZANOST RADA