Building Scalable Open Web of Things
•
1 like•881 views
The document discusses building a scalable and open World Wide Web of Things. It proposes applying REST architectural principles to connect physical devices to the web. Gateways would enable RESTful access to devices that cannot directly support HTTP or IP. Gateways could augment device functionality by handling tasks like caching, failure recovery, and access control to support developing complex distributed applications from interconnected devices.
Recommended
Recommended
More Related Content
Similar to Building Scalable Open Web of Things
Similar to Building Scalable Open Web of Things (20)
Recently uploaded
Recently uploaded (20)
Building Scalable Open Web of Things
- 1. Building a Scalable and Open World Wide Web of Things University of Lugano 26 March 2009 Vlad Trifa and Dominique Guinard
- 2. Outline ‣ Introduction ‣ Web of Things ‣ REST on devices ‣ Gateways ‣ Goodies Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 3. From barcodes... ‣ Growing trend to connect physical objects to the Web ‣ Barcodes do that well Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 4. To RFID tags... ‣ With RFID tags more things are possible ‣ Each object has an ID ‣ Read at a distance ‣ New interaction modes ‣ ... Image courtesy of Timo Arnall - http://www.elasticspaces.com Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 5. To microprocessors... ‣ Web connectivity: cheap & ubiquitous ‣ Emergence of the physical Web ‣ Beyond Websites and browsers ‣ Soon more devices than humans ‣ And real-time Web ‣ RSS/ATOM, Twitter, etc.. Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 6. The Challenge How to integrate such a wide range of devices as part of distributed applications (without a PhD in Computer science)? ‣ Devices with different capabilities/functions ‣ Tons of networking protocols ‣ Many incompatible applications/middlewares ‣ Proprietary solutions are rigid and difficult to customize ‣ Need for a common ground for devices! ‣ Maximizes interoperability, scalability, and evolvability ‣ Emphasizes reuse and sharing ‣ Easy to use ‣ Flexible Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 7. Sounds very much like the Web... Reuse the Web standards to develop applications for networked objects. ‣ Web makes applications cheaper to develop ‣ 1.5 billion people use it and it is simple ‣ It is scalable, loosely-coupled, and evolvable ‣ Integrate and share real-time device data ‣ Devices and their properties become browsable ‣ Web becomes a collection of devices that can be recombined at runtime to build applications Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 8. REpresentational State Transfer (REST) ‣ Architectural style behind the Web (NOT a standard) HTTP CRUD ‣ Information unit is a POST Create resource identified by URI GET Read ‣ Uniform interface PUT Update ‣ Self-described messages (MIME types) DELETE Delete ‣ Stateless Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 9. REST on devices ‣ Devices and their properties are RESTful resources GET device/sensors/temperature POST device/sensor/LED ‣ Three possibilities to do that ‣ Full REST (HTTP) - Ideally!! ‣ Full customized solution with a gateway ‣ A mix of both ‣ But most devices can’t always have full REST... ‣ Low-power ‣ No HTTP or no IP support ‣ Proprietary protocols or API Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 10. Gateways ‣ Enable RESTful access to devices ‣ Any computer that runs Java (NAS, routers, etc...) ‣ Fully Web compliant Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 11. Smart Gateways ‣ Augment functionality (& perf) of devices and leverage all what is available for the Web ‣ Not just a Web page/interface for device data ‣ Layering ‣ Caching of data ‣ Failure masking ‣ Complex functionalities not feasible on devices ‣ Complex decision processes ‣ Energy consumption optimization ‣ Localized access control and security Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 12. Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 13. Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 14. Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 15. Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com
- 16. Thanks!!!!! www.webofthings.com Thursday, March 26, 2009 Vlad Trifa - SAP/ETH Zurich - www.webofthings.com