HEADing device for inland waterway NAVigation (HEADNAV)
The project HEAD-NAV aims at developing a cost effective GPS based heading system
for the application in inland waterway navigation. The generated heading information
will be integrated into the traffic data of the Inland ECDIS (Electronic Chart Display
and Information Service) and transmitted via the AIS (Automatic Identification System)
It will be analysed, if the use of a special GPS heading receiver
containing only one receiver clock, or two separate standard GPS receivers
should be used to design and develop a cost effective functional demonstrator.
If two separate GPS receivers will be used, the clock synchronisation errors must
be considered by the heading software.
To bridge occurring epochs of satellite signal shading (by bridges, high buildings,
vegetation or the surrounding topography) on inland waterways, an autonomous sensor
(low-cost gyro) will be integrated into the heading system. The software
development for the heading calculation will be based on relative GPS processing
techniques (single-difference or double-difference approach) supported by a Kalman
Filter for the integration of the autonomous sensor to ensure a continuous and
reliable heading determination.
This modern heading system will perform a major contribution for the innovation and
for increasing safety within inland waterway navigation und thus, will introduce
further added value into River Information Services.
TeleConsult Austria GmbH (lead)
supported by: via donau – Österreichische Wasserstraßen-Gesellschaft mbH
Austrian Government (BMVIT)
Successfully completed in 2008