Eposa english

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EPOSA ® , a brand of Energie Burgenland, ÖBB-Infrastruktur AG and Wiener Netze GmbH

Transcript of Eposa english

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EPOSA®, a brand of Energie Burgenland, ÖBB-Infrastruktur AG and Wiener Netze GmbH

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EPOSA – Punktgenau – in Echtzeit

Cooperation partner:The Energie Burgenland is the power supply company in Burgenland. They were in the end of the 90th the first GNSS reference net provider in Austria.

The biggest transport company in Austria, the ÖBB-Infrastruktur AG owns telecom lines and railway stations throughout the whole country of Austria which forms the base of the EPOSA infrastructure.

The Wiener Netze GmbH is the biggest power supply company in Austria and has overtaken the leadership of EPOSA.

The Technical University of Vienna is performing the quality check and technical development of EPOSA.

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Provided EPOSA Services (1)

• GNSS realtime positioning services- GNSS correction data (RTK, - Data format RTCM (Vers. 3.1, 2.3)- Independent to mobile communication providers

• GNSS postprocessing services- RINEX & virtual RINEX (Vers. 2.3) - Calculation of user positions from RINEX (RINEX-PPS)- Coordinate transformations

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Provided EPOSA Services (2)

• Supported GNSS

- NAVigation System with Time And Ranging - Global Positioning System GPS

- GLObalnaya NAvigatsionnaya Sputnikovaya Systema GLONASS

- Europäisches Satellitennavigationssystem Galileo

- Chinesische Satelittennavigationssystem COMPASS/Beidou

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Influences on GNSS SPP

Orbit error

Calculated Orbit

True Orbit

54° 32‘ 43‘‘12° 10‘ 11‘

Propagation error

Ionosphere50 -1000 km

Troposphere0 - 50 km

54° 32‘ 43‘‘12° 10‘ 11‘

Multipath

54° 32‘ 43‘‘12° 10‘ 11‘

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Range of not networked reference stations

~10km

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Range of networked reference stations

50 – 100 km

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39 reference stationsseriel & IP-connections 2 server for data processing (Backup system ÖBB)

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EPOSA station overview

EPOSA coordinate frame – ITRF2008, Ep. 2010.0

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NTRIP-Server

Internet

Data Center:Calculation

DGNSS-signal

Referenzstationen Antenne (GPS+GLONASS)

+ Empfänger

GPS/GLONASS-AntenneEmpfängerGPRS

Transmission time 1-1,5 seconds!

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NTRIP = Networked Transport of RTCM via Internet Protocol

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Data format via GPRS (NTRIP):

RTCM 2.3 Mountpoint: DGNSS

DGNSS correction data RTCM2.3

Mountpoint: DGNSS-TRDGNSS correction RTCM2.3+ Rasterinformation

Mountpoint: RTK-2.3RTK (GNSS) correction data RTCM2.3

Mountpoint: RTK-2.3-TRRTK (GNSS) correction data RTCM2.3

+ Rasterinformation

RTCM 3.1Mountpoint: RTK-3

RTK (GNSS) correction data RTCM3.1

Mountpoint: RTK-3-TRRTK (GNSS) correction data RTCM3.1+ Rasterinformation

Mountpoint: RTK-3-TR-Mxx (28, 31, 34)RTK (GNSS) correction data RTCM3.1+ Rasterinformation

No Transmission of correction data via GSM from 01.01.2015!

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Transformation parameter

Zlokal

X lokalYlokal

ZITRF

XITRF YITRF Helmerttransformation

Coordinate Transformation from EPOSA reference frame (ITRF2008) to the Austrian official coordinate system MGI (Gauß-Krüger M34)

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Transformation Server (1):

EPOSA – Punktgenau – in Echtzeit

GK ebene Koord.(RW, HW, ortho. H)

Besselellipsoid ellip. Koord. (Lat, Lon, ortho. H)

ITRF kartesische Koord.(X, Y, Z)

Besselellipsoid ellip. Koord. (Lat, Lon, ellips. H)

Inverse Gauß-Krüger Projektion7-Parametertransformation (Einheitssatz)

Umrechnung auf ell. Koord. bezüglich Besselellipsoid

Due to the inhomogeneous MGI coordinates Residuals can be calculated atidentical pointsΔLat, ΔLon, ΔH

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Residuen-RasterEPOSA – Punktgenau – in Echtzeit

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Transformation-Server (2):

EPOSA – Punktgenau – in Echtzeit

Bikubische Spline - Interpolation

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• Raster information is attached to the usual RTK information within the format RTCM3.1 & RTCM2.3, or is transmitted to the user via the RTCM3.1 transformation messages.

• No local parameter sets needed for the transformation to MGI

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EPOSA – Punktgenau – in EchtzeitDarstellung des aktuellen Rasters (1)

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EPOSA – Punktgenau – in EchtzeitDarstellung des aktuellen Rasters (2)

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EPOSA – Punktgenau – in EchtzeitDarstellung des aktuellen Rasters (3)

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Only 1 parameter set for the whole region of Austria!

EPOSA – Punktgenau – in Echtzeit

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www.eposa.atEPOSA

Postprocessing Sevices

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GNSS RINEX data and virtual RINEX data (1)

www.eposa.at

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GNSS RINEX data and virtual RINEX data (2)

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GNSS observation data of all 39 reference stations 1 second period 95% availability L1 + L1/L2 data

Virtual GNSS observation data for whole Austria 1 second period 99% availability L1 + L1/L2 data

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GNSS RINEX data and virtual RINEX data (3)

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RINEX PPS Service

The RINEX Post-Processing Service offers to the customer the possibility to upload collected data in RINEX format to the EPOSA server. Based on the collected and archived correction model data from the EPOSA network the uploaded data can be processed and the position can be calculated with an accuracy of 1-2 cm, dependent on the observation time.

Benefits:- No own processing software needed.- Only one GNSS receiver for collecting the observation data

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RINEX PPS Service – Step by Step Web-Interface (1)

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Job managementsettings

RINEX PPS Service – Step by Step Web-Interface (2)

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Transformation-Service – Step by Step Web-Interface (1)

EPOSA Transformation service• Transformation ITRF2008 – ETRF89• Transformation ITRF2008 – MGI

www.eposa.at

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Transformation-Service – Step by Step Web-Interface (2)

Job managementsettings

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Further services:

● Training

● Support

● Test of new receiver/rover types

● Support of science and development

● Supported science projectsSMART Vidente, AUSPRO, GNSSMET-Austria, RA-PPP, RT-PPP, PPPServe, RegioMontan

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Surveying Documentation (power lines, railroad, …) Stake out of buildings, construction sites, … Control measurements Tracking of special vehicles

• Helicopter, trains, … Controlling of construction machines

excavator bulldozer tractors

Collection of GIS data Determination of areas and volumina Archaeology

Applications:

EPOSA – Punktgenau – in Echtzeit

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Thank you for your attention!

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