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Exploiting EGNOS in leisure activities: the WalkEGNOS project. Marco Pini , Antonio Defina , Dieter Meinhard , Emiliano Spaltro and Olivier Boyer. Outline. WalkEGNOS project, partners and objectives; Motivation and problem statement; WalkEGNOS system overview: Website
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Exploiting EGNOS in leisure activities: the WalkEGNOS project Marco Pini, Antonio Defina, Dieter Meinhard, EmilianoSpaltro and Olivier Boyer
Outline • WalkEGNOS project, partners and objectives; • Motivation and problem statement; • WalkEGNOS system overview: • Website • Post processing engine • Custom devices • Results of preliminary tests on field: • Assessment of EGNOS added values • Business and exploitation analysis; • Conclusions European Navigation Conference 2013 – April 23-25, Vienna
WalkEGNOS Consortium WalkEGNOS is a two years (2012-2013) collaborative European project funded by the European Union's Seventh Framework Programme (FP7/2007-2013) under grant agreement n° 277656-2. WalkEGNOS investigates the possibility to generate a data base of accurate and reliable GNSS tracks, collected on field with low cost devices and augmented off line with EGNOS and EDAS data. IstitutoSuperiore Mario Boella(Italy): no profit research centre in the field of ICT. Coordinator, role in the system definition, prototypes development and tests Brimatech Services GmbH (Austria): market research and consulting. Role in market analysis, commercial feasibility and business plan Alpha Consult s.r.l(Italy): strategic consulting in GNSS. Role in requirements management, creation of web site and WalkEGNOS community M3 Systems (France): independent SME, specialized in space, ATM and transport applications. Role in system design and EGNOS augmentation engine European Navigation Conference 2013 – April 23-25, Vienna
Motivation and Current Limits • Problems addressed by WalkEGNOS: • Available maps are often not up to date and/or inaccurate; • Mapping on a voluntary basis in not validated; • Professional mapping is expensive European Navigation Conference 2013 – April 23-25, Vienna
Expected Major Outcomes The database containing information on reliable routes will: open new opportunities for high quality leisure/touristic services be of great value for search and rescue operations (needs confirmed during the interviews with stakeholders in the first part of the project) useful for Organisations entrusted with the maintenance of paths European Navigation Conference 2013 – April 23-25, Vienna
WalkEGNOS System Overview WALKEGNOS.NET Website Front-end Services COMMERCIAL DEVICES Data Upload Post Processing Engine Website Back Office Rinex TRACKS STORAGE APIs Rinex CUSTOM USER DEVICE Other Web Portals www.walkgps.com www.tracegps.com Social Networks VIRAL MARKETING European Navigation Conference 2013 – April 23-25, Vienna
WalkEGNOSWebSite EGNOS/ ESA-FTP WalkEGNOS Engine USERS Tracks uploaded • Data upload • Personal information PoweredTracks The site will allow access to external website/ portals in order to share tracks and provide services Powered Tracks download EXTERNAL WEB PORTALS Personal data storage Website Powered Tracks Storage (displayed on a map) Data upload European Navigation Conference 2013 – April 23-25, Vienna
WalkEGNOSWebSite walkegnos.net European Navigation Conference 2013 – April 23-25, Vienna
WalkEGNOSWebSite walkegnos.net European Navigation Conference 2013 – April 23-25, Vienna
WalkEGNOSWebSite walkegnos.net European Navigation Conference 2013 – April 23-25, Vienna
Online/ Web 2.0 marketing tools Facebook page Twitter account European Navigation Conference 2013 – April 23-25, Vienna
Post Processing Engine • Independent remote unit able to post process RINEX files and provide in output EGNOS powered tracks; • Tracks will be more accurate respect to standalone GPS receivers; • Tracks will be provided with associated quality index based on computed Protection Levels (PLs) • PLs are used by the PPE to select the best track, when comparing 2 different tracks related to the same path European Navigation Conference 2013 – April 23-25, Vienna
Custom Device WalkEGNOS relies on the post processing of raw GNSS observables (i.e.: pseudoranges), that are not provided by portable commercial devices equipped with GNSS receivers (e.g. smartphones, personal navigator); The project includes the development of prototypal device to demonstrate advantages offered by EGNOS/EDAS; Wearable, embedding a commercial GNSS module, able to store RINEX files required for post processing; Open platform (the software package is based on Microsoft .NET Micro Framework) connected to communities of developers; Matches user requirements identified in the first phase of the project: • Portability • Low cost • Easiness of use • Battery lifetime • SD card interface European Navigation Conference 2013 – April 23-25, Vienna
Data Collection Data collection was performed in a real mountain environment a path in a clearing on the valley side with good sky visibility, canopy coverage almost absent. a path in a wood on the mountainside with fair sky visibility and medium canopy coverage Reference path surveyed with geodetic GPS receiver (dual freq, DGPS, RTK) OPEN WOOD European Navigation Conference 2013 – April 23-25, Vienna
Path 1: Accuracy Comparison • Reference • Commercial rx • WalkEGNOS European Navigation Conference 2013 – April 23-25, Vienna
Path 2: Results Under Tree Canopy One of the commercial receivers showed an anomalous (erroneous) trend. WalkEGNOS is able to estimate the user position, even if the accuracy is degraded. SAME POINT ! 100m European Navigation Conference 2013 – April 23-25, Vienna
PLs Used as Track Confidence Intervals • Protection Level varies according to signals received and EGNOS integrity information European Navigation Conference 2013 – April 23-25, Vienna
Analysis of Commercial Applications WalkEGNOS fields of application: • Provision of a WalkEGNOS service portal to leisure users • Provision of EGNOS/EDAS powered tracks to third-party service providers • Provision of EGNOS-powered professional solutions to business users • Provision of WalkEGNOS tracks to third-party solution providers • WalkEGNOS custom device Leisure users (e.g. hikers) Professional users (e.g. SAR) 3rd party services 3rd party solutions 1 2 3 4 WalkEGNOS service portal WalkEGNOSengine &DB WalkEGNOS professional solution WalkEGNOSengine &DB European Navigation Conference 2013 – April 23-25, Vienna
Conclusions • WalkEGNOS project creates a flexible web 2.0 platform for mapping service to enhance the quality of tracks currently available; • The system improves track accuracy, post processing GNSS raw measurements collected with low cost terminals (Custom Devices), and enhance the results with EGNOS\EDAS information; • WalkEGNOS investigates the use of the EGNOS Protection Levels applied in pedestrian navigation; • Preliminary tests confirm promising results with enhanced accuracy and tracks reliability; • WalkEGNOS outputs can be addressed to different fields of application, such as leisure (e.g. hikers) or professional (e.g. SAR) uses. Furthermore, WalkEGNOS architecture foresees the integration with third party technologies. European Navigation Conference 2013 – April 23-25, Vienna