[CONTEXTS'10] Using context awareness to foster active lifestyles
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The document discusses using context-awareness to develop mobile applications that foster active lifestyles. It describes a CASanDRA architecture and middleware for mobile context-aware applications. The middleware acquires context like motion, location and time from sensors and uses reasoning to provide applications with intelligent context inferences. It also allows dynamic configuration and aggregation of sensor and application components. The goal is to develop personalized, preventative healthcare applications that monitor and motivate users to adopt healthier behaviors.
![CASanDRA mobile middleware
[SOA ] mobile OSGi:
dynamic component
framework for Java
Applications
bundle: reusable software
unit
ContextFusion Subscription Network
History Registry Discovery reusability of components
(bundles/services)
CASanDRA Core
aggregation of (context) data
HW platform independence
mobile middleware
ENABLER ENABLER ENABLER ENABLER
(Java-based)
CASanDRA Context inference services in framework
• resource discovery
SENSOR SENSOR SENSOR SENSOR • event management
• log
CASanDRA Acquisition • [...]
Environment
= CASanDRA mobile
Using context-awareness to foster active lifestyles 11 / 13](https://image.slidesharecdn.com/contexts10usingcontext-awareness-120611064459-phpapp02/85/CONTEXTS-10-Using-context-awareness-to-foster-active-lifestyles-11-320.jpg)
[CONTEXTS'10] Using context awareness to foster active lifestyles
- 1. Data Processing and Simulation Group Telecommunications School Techical University of Madrid Using context-awareness to foster active lifestyles Ana M. Bernardos, Eva Madrazo, Henar Martín, José R. Casar Workshop CONTEXTS 2010 Josué Iglesias josue@grpss.ssr.upm.es
- 2. Presentation outline Introduction Design principles Context acquisition and reasoning CASanDRA architecture Application development Conclusions and future work Using context-awareness to foster active lifestyles 2 / 13
- 3. Introduction: the evolution of healthcare Educational protocols Traditional Support tools reactive model >5.000 mobile applications - Information, Preventive- - Monitoring, proactive - Calendars, - Reminders, model - Calculators... Using context-awareness to foster active lifestyles 3 / 13
- 4. Introduction Personali- zed and Context- persuasive Captology applications awareness for healthcare Monitor and (mainly) motivate the users to adopt healthy and feasible motion patterns in their daily lifes Using context-awareness to foster active lifestyles 4 / 13
- 5. Presentation outline Introduction Design principles Context acquisition and reasoning CASanDRA architecture Application development Conclusions and future work Using context-awareness to foster active lifestyles 5 / 13
- 6. Design principles • Application based on: – Motion states: walking, running, taking the bus… inputs REAL motion pattern + location & time information – Activity profiles: at work, at home, practicing sports… outputs EXPECTED motion pattern – Advisable motion pattern: ‘stand up and walk x Km ...’ • Three elements for a person to perform a target behavior: inputs – Ability → configuration panel – Motivation → visual interface outputs – Effective triggers → context-aware alerts Using context-awareness to foster active lifestyles 6 / 13
- 7. Presentation outline Introduction Design principles Context acquisition and reasoning CASanDRA architecture Application development Conclusions and future work Using context-awareness to foster active lifestyles 7 / 13
- 8. Context acquisition & feature extraction • Motion state – Shimmer mote attached to the foot – Embedded accelerometer in the mobile device • Positioning – When indoors: Zone-based – When outdoors: GPS – Handover between indoors and outdoors • Walked distance – Based on GPS coordinates – Inertial-based step counter • Date & Time Using context-awareness to foster active lifestyles 8 / 13
- 9. Presentation outline Introduction Design principles Context acquisition and reasoning CASanDRA architecture Application development Conclusions and future work Using context-awareness to foster active lifestyles 9 / 13
- 10. CASanDRA mobile middleware mobile middleware: Applications ContextFusion Subscription Network tools to simplify History Registry Discovery application development CASanDRA Core + process sensor data mobile middleware ENABLER ENABLER ENABLER ENABLER intelligently CASanDRA Context inference + SENSOR SENSOR SENSOR SENSOR hide specific sensor CASanDRA Acquisition characteristics Environment = CASanDRA mobile Using context-awareness to foster active lifestyles 10 / 13
- 11. CASanDRA mobile middleware [SOA ] mobile OSGi: dynamic component framework for Java Applications bundle: reusable software unit ContextFusion Subscription Network History Registry Discovery reusability of components (bundles/services) CASanDRA Core aggregation of (context) data HW platform independence mobile middleware ENABLER ENABLER ENABLER ENABLER (Java-based) CASanDRA Context inference services in framework • resource discovery SENSOR SENSOR SENSOR SENSOR • event management • log CASanDRA Acquisition • [...] Environment = CASanDRA mobile Using context-awareness to foster active lifestyles 11 / 13
- 12. Presentation outline Introduction Design principles Context acquisition and reasoning CASanDRA architecture Application development Conclusions and future work Using context-awareness to foster active lifestyles 12 / 13
- 13. Application components • APPLICATIONS • CORE • SENSORS • accelerometer (x2) • Bluetooth • WiFi • GPS • ENABLERS • step counter • indoor location (x2) • location fusion • inference engine Using context-awareness to foster active lifestyles 13 / 13
- 14. Application operation events management component subscription • enablers • applications register components • sensors • enablers start components dynamic rules configuration Using context-awareness to foster active lifestyles 14 / 13
- 15. Application prototype • Samsung Omnia with WM 6.1 • J9 virtual machine to run mOSGi (based on equinox OSGi) Using context-awareness to foster active lifestyles 15 / 13
- 16. Presentation outline Introduction Design principles Context acquisition and reasoning CASanDRA architecture Application development Conclusions and future work Using context-awareness to foster active lifestyles 16 / 13
- 17. Conclusions • Persuasive computing merged with context- awareness may be a powerful tool to educate people in healthy lifestyles. • But there is a way to go…: – Technology (HW and SW) to estimate the user’s context in a non-intrusive way. – Frameworks to make easier the development of context-aware apps. – Privacy and security in data management. – User experience. Using context-awareness to foster active lifestyles 17 / 13
- 18. Further work This is a work in progress. Our current efforts aim at: • Improving CASanDRA Mobile • How to use data fusion techniques to manage uncertainty (Quality of context) • Light reasoning strategies: ontology management in mobile devices • Enhancing the application features • Fusion algorithms to detect motion patterns with non- invasive hardware • Adaptive strategies for personal patterns’ analysis • Enhancing the performance of positioning by using inertial systems • Modeling of ‘persuasion’ for behavior change: user feedback and validation Using context-awareness to foster active lifestyles 18 / 13
- 19. Thank you for your attention Josué Iglesias josue@grpss.ssr.upm.es
- 20. Activity profiles Profile Activity level Motion pattern Work Low Stand up and walk for some meters once an hour Sleep Very low 9 hours max Commuting High Walk 1 km. At home Low Stand up and walk for some meters once an hour Sports practice Very high Run 4 km Using context-awareness to foster active lifestyles 20 / 13