Survey VesselSurvey VesselVALENTÝNA II.VALENTÝNA II.

Aleš Ruckýales.rucky@geovap.cz

Jiří Pšeničkajiri.psenicka@geovap.cz

• Participants in the Project

• GPS usage in the Project of Povodí Vltavy• First Tests in 1998

• Creation of Maps

• Verification of GPS Accuracy aboard the Valentýna

• Activation of the New System

• Used Equipment

• Questions and Answers

ProgramProgram

Participants in the ProjectParticipants in the ProjectPovodí Vltavy a.s., PrahaOy Meridata Finland Ltd.RSK s.r.o., PrahaGEOVAP s.r.o., PardubiceHydroinform a.s., PrahaRACOM s.r.o., Nové Město na Mor.Arcus Geo s.r.o., Hradec Královéand others

GEOVAP, spol. s r.o.GEOVAP, spol. s r.o.

Head Office: Pardubicehttp://www.geovap.czBranch Offices:Hradec Král.

KolínČ. TřebováBrno

Founded in 1991Today about 100 Employees

Main Business Activities: Geodesy, Programming, System Integration of GIS, Industrial Automation, Sales and Services.

Modernization of the VesselModernization of the Vessel

Port of MělníkPort of Mělník

First TestsFirst Tests

Creation of Map (Chart)Creation of Map (Chart)

Photogrammetry Data Photogrammetry Data ProcessingProcessing

RTK Accuracy VerificationRTK Accuracy Verification

Application of Automatic Application of Automatic Total Station in SD a.s.Total Station in SD a.s.

Bird’s-eye View of the Testing Bird’s-eye View of the Testing SiteSite

RTK Accuracy VerificationRTK Accuracy VerificationVAL3_3

-1014350

-1014300

-1014250

-1014200

-1014150

-1014100

-1014050

-1014000

-1013950

-1013900

-1013850

-735750 -735700 -735650 -735600 -735550 -735500 -735450 -735400

VAL3_3

Check Points1 2

3

4

5

Trajectory VAL3_3 w ith the local check points No. 1 - 5

RTK Accuracy VerificationRTK Accuracy Verification

-1014380

-1014360

-1014340

-1014320

-1014300

-1014280

-1014260

-1014240

-1014220

-1014200

-735550 -735530 -735510 -735490 -735470 -735450 -735430 -735410

GG2

TCA2

RTK Accuracy VerificationRTK Accuracy Verification

-1014400

-1014300

-1014200

-1014100

-1014000

-1013900

-1013800

-735750 -735700 -735650 -735600 -735550 -735500 -735450

GG1

TCA1

Comparison of trajectories VAL3_3 measured by GG24 (GG1) a total station (TCA1)

50 m

Max. difference (GG and tot. station) in position < 18 cm

$GPGGA,092237.00,5021.324867,N,01427.854611,E,3,12,00.9,00158.599,M,0044.83,M,010,0000*5F

$GPGST,092237.00,00.127,,,,00.080,00.077,00.178*76

$GPGGA,101815.00,5018.595050,N,01429.709322,E,1,10,01.2,00201.962,M,0044.85,M,999,0000*5B

$GPGST,101815.00,14.383,,,,15.493,06.198,17.427*73

CPD Corrected Positions:CPD Corrected Positions:

After the Loss of Radio Link:After the Loss of Radio Link:

Activation of New SystemActivation of New System

• ASHTECH GG Surveyor (with RTK Option)• Radiomodem RACOM Morse MR25• 51 Echosounders (Transducers)• Gyroscope Rayethon Stnd 20 • Inclinometer• Limnigraphs (1-2 between two Locks)• Main Supplier Oy Meridata Finland Ltd• Computers and Plotter HP

Used EquipmentUsed Equipment

GG_Surveyor

River WildlifeRiver Wildlife

River WildlifeRiver Wildlife

The Vltava BeautyThe Vltava Beauty

Questions and AnswersQuestions and Answers

Teamwork Is the WordTeamwork Is the Word

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