TIMOTHY S.K. YUEN DESC9179 Research Presentation Service-Oriented Approach to Programmable Pervasive Spaces

Presentation Outline About Research Motivation Explored Solution Atlas: A Service-Oriented Sensor Platform Smart Space Middleware Atlas Examples Device Failures Conclusion & Insights References

About

Research Motivation

Explored Solution

Atlas: A Service-Oriented Sensor Platform

Smart Space Middleware

Atlas Examples

Device Failures

Conclusion & Insights

References

About Background in Information Technology (IT) Studying for a Graduate Diploma in Design Computing Motivation in the this research presentation topic Are my skills transferable to pervasive computing? How can my programming skills be utilized?

Background in Information Technology (IT)

Studying for a Graduate Diploma in Design Computing

Motivation in the this research presentation topic

Are my skills transferable to pervasive computing?

How can my programming skills be utilized?

Research Motivation Programming plays an important part in realizing the vision of ubiquitous and pervasive computing. Problems in a pervasive system Many heterogeneous devices Non-scaleable Integration of heterogeneous elements System not open for extensions Unknown future developments Standard required for self-integration of devices (Ref Helal S. (2005), “Programming Pervasive Spaces”)

Programming plays an important part in realizing the vision of ubiquitous and pervasive computing.

Problems in a pervasive system

Many heterogeneous devices

Non-scaleable Integration of heterogeneous elements

System not open for extensions

Unknown future developments

Standard required for self-integration of devices

(Ref Helal S. (2005), “Programming Pervasive Spaces”)

Explored Solution A Service Oriented Model Based on Service-Oriented Architecture (SOA) from a software engineering practice. Middleware Devices (i.e. sensors & actuators) provides a service. Applications use these services to communicate with devices. enables rapid prototyping and development. scalability (ad hoc additions of devices). easily understandable to programmers.

A Service Oriented Model

Based on Service-Oriented Architecture (SOA) from a software engineering practice.

Middleware

Devices (i.e. sensors & actuators) provides a service.

Applications use these services to communicate with devices.

enables rapid prototyping and development.

scalability (ad hoc additions of devices).

easily understandable to programmers.

Atlas: A Service-Oriented Sensor Platform Atlas is a commercially available service-oriented sensor and actuator platform that enables the concepts of self-integrative, programmable pervasive spaces.. Manual integration of devices are replaced by a scalable, plug-and-play mechanism. The Smart Space to be assembled programmatically by software developers instead of hardwired by engineers and system integrators. Atlas Platform Atlas node connects to sensors and actuators OSGi middleware facilitates communicate between devices and applications (Ref A. Helal et al (2006), “Atlas: A Service-Oriented Sensor Platform”)

Atlas is a commercially available service-oriented sensor and actuator platform that enables the concepts of self-integrative, programmable pervasive spaces..

Manual integration of devices are replaced by a scalable, plug-and-play mechanism.

The Smart Space to be assembled programmatically by software developers instead of hardwired by engineers and system integrators.

Atlas Platform

Atlas node connects to sensors and actuators

OSGi middleware facilitates communicate between devices and applications

(Ref A. Helal et al (2006), “Atlas: A Service-Oriented Sensor Platform”)

Smart Space Middleware (Image extracted from “Atlas: A Service-Oriented Sensor Platform”)

(Image extracted from “Atlas: A Service-Oriented Sensor Platform”)

Atlas Examples Gator Tech Smart House Smart Plugs Smart Floor (All Images extracted from “Atlas: A Service-Oriented Sensor Platform”)

Gator Tech Smart House

Smart Plugs

Smart Floor

Device Failures Physical sensors and actuators frequently fail and the reliability and availability services of a SOA are greatly diminished. A solution is to have duplicate devices that does the same thing. This provides resilience against failure. Furthermore, SOA allows reuse and re-composition of services. Services can be composed dynamically when failures occurs or when devices are added. Virtual Sensors for fault resilient services

Physical sensors and actuators frequently fail and the reliability and availability services of a SOA are greatly diminished.

A solution is to have duplicate devices that does the same thing. This provides resilience against failure.

Furthermore, SOA allows reuse and re-composition of services. Services can be composed dynamically when failures occurs or when devices are added.

Virtual Sensors for fault resilient services

Conclusion & Insights SOA modelling in pervasive spaces allows Self-integration of devices Easy to program by programmers Scalable Caters for device failures and can dynamically recompose services. a standard in which to access services.

SOA modelling in pervasive spaces allows

Self-integration of devices

Easy to program by programmers

Scalable

Caters for device failures and can dynamically recompose services.

a standard in which to access services.

REFERENCES Programming pervasive spaces Helal, S.; Pervasive Computing, IEEE Volume 4, Issue 1 , Jan.-March 2005 Page(s):84 - 87 Digital Object Identifier 10.1109/MPRV.2005.22 http://ieeexplore.ieee.org.ezproxy2.library.usyd.edu.au/iel5/4116489/4116490/04116631.pdf?tp=&arnumber=4116631&isnumber=4116490 A comparison of two programming models for pervasive computing Hen-I Yang; Jansen, E.; Helal, S.; Applications and the Internet Workshops, 2006. SAINT Workshops 2006. International Symposium on 23-27 Jan. 2006 Page(s):4 pp. Digital Object Identifier 10.1109/SAINT-W.2006.1 http://ieeexplore.ieee.org.ezproxy2.library.usyd.edu.au/iel5/10556/33405/01581388.pdf?tp=&arnumber=1581388&isnumber=33405

Programming pervasive spaces Helal, S.; Pervasive Computing, IEEE Volume 4, Issue 1 , Jan.-March 2005 Page(s):84 - 87 Digital Object Identifier 10.1109/MPRV.2005.22 http://ieeexplore.ieee.org.ezproxy2.library.usyd.edu.au/iel5/4116489/4116490/04116631.pdf?tp=&arnumber=4116631&isnumber=4116490

A comparison of two programming models for pervasive computing Hen-I Yang; Jansen, E.; Helal, S.; Applications and the Internet Workshops, 2006. SAINT Workshops 2006. International Symposium on 23-27 Jan. 2006 Page(s):4 pp. Digital Object Identifier 10.1109/SAINT-W.2006.1 http://ieeexplore.ieee.org.ezproxy2.library.usyd.edu.au/iel5/10556/33405/01581388.pdf?tp=&arnumber=1581388&isnumber=33405

REFERENCES Atlas: A Service-Oriented Sensor Platform: Hardware and Middleware to Enable Programmable Pervasive Spaces King, J.; Bose, R.; Hen-I Yang; Pickles, S.; Helal, A.; Local Computer Networks, Proceedings 2006 31st IEEE Conference on Nov. 2006 Page(s):630 - 638 Digital Object Identifier 10.1109/LCN.2006.322026 http://ieeexplore.ieee.org.ezproxy2.library.usyd.edu.au/iel5/7756/30432/01401850.pdf?tp=&arnumber=1401850&isnumber=30432 Fault-resilient ubiquitous service composition Jinchun Xia; Chang, C.K.; Tae-Hyung Kim; Yang, H.-I.; Bose, R.; Helal, S.; Intelligent Environments, 2007. IE 07. 3rd IET International Conference on 24-25 Sept. 2007 Page(s):108 - 115 http://ieeexplore.ieee.org.ezproxy2.library.usyd.edu.au/iel5/4445745/4449897/04449919.pdf?tp=&arnumber=4449919&isnumber=4449897

Atlas: A Service-Oriented Sensor Platform: Hardware and Middleware to Enable Programmable Pervasive Spaces King, J.; Bose, R.; Hen-I Yang; Pickles, S.; Helal, A.; Local Computer Networks, Proceedings 2006 31st IEEE Conference on Nov. 2006 Page(s):630 - 638 Digital Object Identifier 10.1109/LCN.2006.322026 http://ieeexplore.ieee.org.ezproxy2.library.usyd.edu.au/iel5/7756/30432/01401850.pdf?tp=&arnumber=1401850&isnumber=30432

Fault-resilient ubiquitous service composition Jinchun Xia; Chang, C.K.; Tae-Hyung Kim; Yang, H.-I.; Bose, R.; Helal, S.; Intelligent Environments, 2007. IE 07. 3rd IET International Conference on 24-25 Sept. 2007 Page(s):108 - 115 http://ieeexplore.ieee.org.ezproxy2.library.usyd.edu.au/iel5/4445745/4449897/04449919.pdf?tp=&arnumber=4449919&isnumber=4449897

QUESTIONS?