compressed-Beacon.pdf

BeaconAccessible Navigation for Android

Sajjad K.M, Nijad Ashraf, Shehzad Abdulla, Saalim Jabir

Outline

The Beacon

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Outline

The Beacon

Accessibility

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Outline

The Beacon

Accessibility

DesignComponents

Beacon Engine

Map Database

Text-To-Speech

User Interface

Data Flow

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Outline

The Beacon

Accessibility

DesignComponents

Beacon Engine

Map Database

Text-To-Speech

User Interface

Data Flow

ToolsAndroidOpenStreetMapPython

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Outline

The Beacon

Accessibility

DesignComponents

Beacon Engine

Map Database

Text-To-Speech

User Interface

Data Flow


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Beacon is a guiding or warning signal, as a light.

Outline

The Beacon

Accessibility

DesignComponents

Beacon Engine

Map Database

Text-To-Speech

User Interface

Data Flow


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Accessibility

◮ Degree of coverage of targetusers of a product.

◮ Inclusive Planet!

◮ Ability to access.

◮ Assistive Technologies.

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a11y

Accessibility means helping people with disabilities to participate insubstantial life activities.

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Disabilities

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Why Assistive Technologies?

Outline

The Beacon

Accessibility

DesignComponents

Beacon Engine

Map Database

Text-To-Speech

User Interface

Data Flow


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Components

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Beacon Engine

◮ Blood and Body of the system.

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Beacon Engine


◮ Coordinates other components.

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Beacon Engine



◮ Creates map database from the local file.

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Beacon Engine




◮ Activates Pyroute for routing.

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Beacon Engine





◮ Delivers text input for TTS.

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Beacon Engine






◮ Fetch map data from online server.

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Beacon Engine






◮ Fetch map data from online server.

◮ Manage application crashes and recovery.

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Map Database

◮ Flesh of the system.

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Map Database


◮ Map data from OpenStreetMap project.

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Map Database


◮ Map data from OpenStreetMap project.

◮ Contains road networks, POIs etc.

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Text-To-Speech

◮ Voice of the system.

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Text-To-Speech


◮ Shipped with Android.

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Text-To-Speech



◮ Supports a number of languages: English, French, German,Italian and Spanish.

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Text-To-Speech



◮ Supports a number of languages: English, French, German,Italian and Spanish.

◮ Different voice files available.

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User Interface

◮ Usability is crucial. Research is happening.

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User Interface


◮ Interacts with the user.

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User Interface


◮ Interacts with the user.

◮ Voice Commands, Text inputs through physical keyboard.

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Data Flow

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Outline

The Beacon

Accessibility

DesignComponents

Beacon Engine

Map Database

Text-To-Speech

User Interface

Data Flow


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Tools

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Android

◮ Mobile operating system from Google Inc.

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Android


◮ Would-be market killer.

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Android



◮ Modified version of Linux kernel.

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Android




◮ Programmed in C, C++ and Java.

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Android





◮ Open Source. Apache License.

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Android






◮ Current version 2.3. Gingerbread.

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Android







◮ Pretty UI.

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Android







◮ Pretty UI.

◮ Community Driven.

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OpenStreetMap

“OpenStreetMap is a project aimed squarely at creating and

providing free geographic data such as street maps to anyone who

wants them.” - www.openstreetmap.org

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OpenStreetMap




◮ Collaborative project to create a free editable map of the world.

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OpenStreetMap





◮ Created using data from portable GPS devices, aerialphotography, other free sources.

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OpenStreetMap






◮ Inspired by Wikipedia.

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OpenStreetMap







◮ Founded in July 2004 by Steve Coast

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OpenStreetMap








◮ Open Database License.

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OpenStreetMap









◮ Core programming is in Ruby on Rails.

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OpenStreetMap









◮ Core programming is in Ruby on Rails.

◮ Efficient APIs.21/24

Python

◮ Designed by Guido van Rossum in 1991.

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Python


◮ General-purpose high-level programming language.

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Python



◮ Emphasizes code readability.

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Python




◮ Large and comprehensive library.

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Python





◮ Supports OOP, Imperative and Functional programming styles.

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Python





◮ Supports OOP, Imperative and Functional programming styles.

◮ Dynamic and Interpreted.22/24

Scripting Layer for Android

SL4A brings scripting languages to Android.

◮ Access to APIs andfull-fledged Androidapplications.

◮ Python, Perl, JRuby.

◮ Lua, BeanShell,JavaScript, Tcl.

◮ Run scripts inbackground or compileon the fly.

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A bunch of thanks to..

◮ Braille Without Borders, Center for Social Innovation.http://bwb-iise.org/

◮ Rahul Gonsalves. @gonsalves r

◮ Sajith N.

◮ Dr. Sambhavi Chandrasekhar.

◮ Flickr.

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