Project team:Annie DANZART (InfRes at TELECOM-ParisTech)Gérard MOURET (InfRes at TELECOM-ParisTech)Christine POTIER (InfRes at TELECOM-ParisTech)Nel SAMAMA (EPH at TELECOM&Management-SudParis)

Trainees: Magda CHELLY Brice DONVALYann PROVOST

GEOservice:Guidance in an enhanced physical space

Projet incitatif GET- Institut TELECOM 2007

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Guidance in buildings Symbolic location

A companion web service providing assistance adaptedto human perceptions and representations of physical space

Genesis of the project

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A web service for assistance in indoor guidance

• Direct access to the service from mobile devices

• Guidance with user-centered instructions

• Context-sensitive service : quality of localization user profiles

• An ability to deal with incidents : occurring in the physical space due to technical problems

A web service to provide for experimentation

• Localization in a real context• Methods of communicating spatial information• User-friendliness and quality of the interface

Objectives

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Interaction with mobile devices

Ways of expressing spatial information (+ Tactile mode)

Methods of indoor localization using a mobile device

Tool to construct zones of presence (using SVG)

Editor of localization scenarios (Interaction + Location)

A Web service adapted to the objectives and context

An online service (Web + Interaction)

Fields of study

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Interface :

• Small screens are often cluttered - visibility of information

• No keyboard + mobility: no input text

Description of the places :

• By function (library, restaurant ...)

• By their numbers: Bldg. C, C212

Information associated with the context :

• Level of mobility

• Mode of localization

• Alternatives

• Useful information

• Incidents

Interaction with mobile devices

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The service informs the user

Query :

Paths adapted to user profile

Interaction with mobile devices

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The user informs the service

…

Interaction with mobile devices

Vidéo : http://www.tsi.enst.fr/~cfaure/Projets/videos/TRAJETSM.mov

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The bracelet:

• signals the arrival of new

instructions• supplements and repeats

visual instructions• LEDs light up or pulse

Communication of spatial information

Visual and text-based modes:

• photos on the screen

• buttons to confirmmovement

Vidéo : http://www.tsi.enst.fr/~cfaure/Projets/videos/BraceletM.mov

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DB - GIS

Back-office

Construction of the covered areas

• Vectorial description of the buildings

Blueprintsfrom AutoCad, Illustrator, etc.

• Using a DB with GIS extensions (Geographic Information System) Identifying areas for spatial analysis

• Displaying floor plans using SVG (Scalable Vector Graphics)• User interaction with Ajax

Software architecture

Php scripts

generation of XML

Loading

Query

Mouse click

Front-office : SVG + Ajax

Click

XML

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Editor: to define realistic situations

Simulator of localization

• Areas of presence containing one or more locations

• Paths partly outside the coverage zone

Behavior of Geoservice in these situations

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DB

Back-office: php + sql

A Web service adapted to our objectives and context

Servers: database and php scripts for calculating distances in XML format Client: receives all instructions of the itinerary and stores images

Smooth operationQuality and speed of sequences

GO

Requête

Mouse click

Front-office : html + javascript, browser

XML

Software architecture

Ergonomics (AJAX)

Mouse clickphp scripts

Generate XML path and content of the web page --------------------Query XML data

and displaythe new context

Query

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• Project wiki:

http://www.infres.enst.fr/geoservice/

• GEOservice online:http://www.infres.enst.fr/projets/geos/GEOserviceWeb//index-

PDA.html

Communication of the project

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Thank you for your attention

Questions ?

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