Status and Update of R&D Project LAESSI. DISC 2016, Regensburg, Folie 1

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1 Status and Update of R&D Project LAESSI Folie 1

2 Outline Background Challenges and Motivation System architecture Trial areas First results Outlook Folie 2

3 Background Inland Shipping: Is an important pillar of the German transport system Is an ecological way to transport goods Is in competition with other transport modes (Railway and Motorways) Inland shipping is safety related especially when transporting dangerous goods This leads to the development of driving assistance systems to support the navigator Folie 3

4 Motivation for the development of driving assistance systems (Bridge Collisions) 20 to 30 collisions per year, about 50 % of bridge collisions caused by carelessness and wrong navigational estimates (human error) Reduce number of accidents danger to people on vessels damages to vessels danger to people on bridges Protect infrastructure and environment Light bridges (e.g. pedestrian bridges) Pipeline bridges Avoid impact on inland vessels traffic due to a bridge collision Folie 4

5 R&D Project LAESSI LAESSI (Guiding and assistance systems to improve safety of inland navigation) Partner - in-innovative navigation GmbH - Alberding GmbH - German Aerospace Center (DLR) - WSV (Traffic Technologies Center) Duration 10/2015 till 12/2017 Main Topics Bridge warning system/berthing/track-control/ Conning Shore based services (RTK, NtS, etc.) Area wide communication based on AIS/VDES Folie 5

6 LAESSI - General requirements Precise static data (e.g. ship hull, bridges, waterways) Precise dynamic data (water level, NtS) Precise and integrity checked 3D-Position (PNT-Unit) Standardized radio links (VDES) + protocols (ASM/RTCM) Calculation of safety distances, alarming and portrayal Folie 6

7 LAESSI - Bridge height warning system hs,geo hb,geo GNSS based approach: Checking geodetic height of vessel against height of bridge Relative height differences of ship elements Folie 8

8 LAESSI - Bridge height warning system Usage of detailed bridge contours Folie 9

9 LAESSI - Bridge height warning system Driving assistance for bridge passing require: Precise 3D onboard position and heading Integrity information Precise ship contour Precise bridge data Folie 10

10 LAESSI - General system architecture Land segment DGNSS-Server Code / Phase Waterways information (NtS, water level, etc.) Transmission segment AIS/VDES (ASM, RTCM) PNT-Unit (DGNSS + onboard sensors) On board segment Driver Assistance functions Inland ECDIS Folie 11

11 Land segment - overview Folie 12

12 Land segment integrity concept Network of GNSS reference stations deliver observation data Network-RTK algorithm derives corrrection data for user position Erroneous observation and satellite orbit/clock data filtered Pre-Broadcast Monitoring (PBM) Correction data applied to independent monitoring station (check in position and SV domain) before broadcast to the user Quality indicator for users Far Field Monitoring (FFM) Correction data received at dedicated monitoring station (check in position and signal quality domain) Quality indicator for service provider Folie 13

13 Germany has implemented LAESSI - Shore services based on AIS/VDES an AIS service along main parts of inland waterways Envisaged provision of following shore services: RTK based DGNSS including integrity checks (Pre broadcast monitoring) Up to date waterways information (NtS, water level information) Folie 14

14 On board processing Elimination/Minimization due to correction data Elimination/Minimization due to correction data Minimization due to measurement set up Estimation of the remaining errors in the adjustment process Integration with additional sensors Folie 15

15 On board processing On board processing with RTK algorithm and additional sensors Integrity concept Folie 16

16 Trial areas Koblenz: Rhine and Mosel Main: from Marktheidenfeld to Würzburg (80 km) Main Donau Kanal: canal and harbour area Folie 18

17 Trials in Koblenz Test vessel MS Bingen Folie 19

18 Sequence of 3 bridges Tracking by Tachymeter as reference Trials in Koblenz Folie 20

19 Measurement campaign Koblenz July 2016 RealTime results from the DLR RTK Solver: 85% fixed solution with internal integrity check (cm-accuracy) cm-solution is also available between the bridges Folie 21

20 Measurement campaign Koblenz July 2016 Example: Height accuracy (with regard to bridge warning systems) Accuracy requirement for bridge warning system: < 10 cm Faster fixed rate after bridge crossing Folie 22

21 Sensor at bow of vessel Laserscanner as close range sensor Folie 23

22 Laser scanner trial at MS Bingen Entering lock chamber from upstream Folie 24

23 Outlook Next steps in project Evaluation of performance of different receivers and DGNSS-services Development of algorithms and software for land based services for on board integrity monitoring for assistance functions Trials on different (commercial) vessels Results of LAESSI will help to make inland shipping easier and safer LAESSI provides examples for usage of AIS-VDES in inland navigation Folie 25

24 Dr.-Ing. Martin Sandler in innovative navigation GmbH Leibnizstrasse Kornwestheim Questions? Folie 26