Location Based Services & Enabling Technologies

1. Location Based Services & Enabling Technologies Global Watch Mission

2. LBS Value Chain Professor Jonathan Raper Global Watch Mission

3. About City University LBS work • Webpark: LBS for outdoor activities (EU funded with Geodan, EADS, LNEC, Swiss National Park & U. of Zurich) • LBS4all: location-based services for the visually impaired and older people (ESRC funded with Kings College, Royal National Institute for the Blind and Ordnance Survey) • Locus: development of context tools for LBS (EPSRC funded with 3 and GIG) Global Watch Mission

4. LBS platform for applications • Architecture developed • based on web browser • GML content • SVG portrayal • client or server connected • java applications • GPS bluetooth positioning Global Watch Mission

5. LBS architectures GPS map DB content WFS WMS OGC requests http server on device + cache Display Data (html) Maps (GML/SVG) Pocket MS-IE Augmented/ Virtual reality Agent-based Information filtering Adaptive scaling Data mining Routes/POI’s Client Server Global Watch Mission

6. Adaptive LBS • LBS need to adapt to users through • Information filtering by location • Augmented reality • Data mining travel options Global Watch Mission

7. Information filtering by location • Key problem in LBS is how to provide information appropriate to user needs • Stochastic simulation of possible future movement, used to search ahead for points of interest • Points of interest ranked on the relevance surface Global Watch Mission

8. Augmented reality • Realisations of cityscapes & landscapes on mobile devices • Digital compass used to orient the user • User controlled labelling Global Watch Mission

9. Data mining travel options • Define routes and areas accessible within a certain time • Produce space-time access prisms based on real travel • Present ‘real’ travel isochrones around current position • Show safety ’scoring’ of routes for disabled users Global Watch Mission