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Although there are many smart devices and networked embedded object applications usingWorld WideWeb technologies, it is still a big step to go towards a true Web of Things. It is e.g. difficult to build ubiquitous WoT applications that work in and accross multiple environments. Approaches which aggregate WoT ressources by centralizing all the resource information, have problems: total dependency on external infrasture, lack of private WoT management, inflexible communication patterns and limited dynamic ressource discovery and mapping. To solve these problems, we propose uBox, a localWoT platform which can be a stand-alone server to make your WoT environment, with interfaces to connect the other local WoT platforms. This way, which we call uBoXing, we can create World Wide WoT platform with a distributed architecture. This paper describes the concept of a distributed resource management architecture, and how we implement the concept into software. Also, we will discuss the platform with the example application in SmartTecO environment.
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uBox: A Distributed Resource Management Architecture
for the Web-of-ThingsNaoya Namatame*, Till Riedel, Takashi Miyaki, Yong Ding, Hideyuki Tokuda*, Michael Beigl*HT Labs@Keio, TecO@KIT
Keio Media Space Family
Vision: A Sensing Cloud
WoT Platform that enables and accelerates Personal and Shared Use.
Keio Media Space Family
Current Situation for Sensor/Actuator Networks
Aims only Private UseDifficult to make Shared Use happen
Current
Ideal
13.04.2023 4
UrbanIoT / IoT 2010 or why I am here
Tokyo Hacker Space
What is still needed for the Web Of ThingsInterconnection of WoT “islands”Vendor discoveryIncentives why you should share your data
Beginning 2011 @TecO we wanted to: (re-)implement our ubicomp apps on a common platformdeploy our sensors around (still had 500+ unused uparts left…)
uBox@WoT 2011
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Naoya: [email protected]
Just married……so he cannot be here today
Research visit to Jan-March 2011His previous work: SensingCloudMost of the stuff you see is implemented by him
Including most slides today
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Web-of-Things
A Web-Technology based approach (e.g. RESTful)
Many Research has been done in this field.Web-Based Middleware for Home Entertainment
Daiki Ueno et. al. 2002Efficient Application Integration in IP-Based Sensor Networks
Dogan Yazar et. al. 2009
WoT are often also islandsand even like the of web for documents.
Everybody wants to sell their platform…
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SensorWeb applications
Collecting sensor data of rain amount from a certain area and plot on a map. (see Japan radiation map on pachube)
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Ubiquitous applications
Calculating context using sensors around you and change your phone mode.
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Enabling portability of applications:
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Challenges
DiscoveryAsynchronous MessagingPrivacy
Our answer:
Keep it simpleKeep it localShare resources
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1st step:Local Web-of-Things using uBox
In home, office or school, users should place uBox and create their own Web-of-Things by registering http-based devices.
This enables users to control variety of devices with an unified API.
People create applications privately in a sandbox
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uBoxes are interconnected to other uBoxes over P2P network.
Users can connect not only their local devices but also global devices as well from their uBox as an entry point.
People share sensors and applications
2nd step:Large Scale Web-of-Things using uBox
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smartTecO Hardware
uBox
fs20 plugwise
uPart
?
dinamite
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Live Demo
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URL Structure for Device Access
URL Structure for Access, Discovery, and Processing.server side javascript !
Browse-able URL
structure
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Separation of Resource Manager and Global Gateway
This way, you can publish your device data with everything under control.
Device Discovery Cloud
Global Gateway
Resource Manager
Resources
uBox
Application
Global Gateway
Resource Manager
Resources
uBox
Application
teco.edu ht.sfc.keio.ac.jp
HTTP/PUT
HTTP/GET
HTTP/GET
HTTP/GET
HTTP/PUT HTTP/PUT HTTP/PUT
HTTP/GET
HTTP/GET
HTTP/GET HTTP/GET
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Registering sensors and actuators (reverse http like)
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Retrieving sensor data
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Why else should I use the uBox?multicast PUT routing
One to many communicationasynchronous communication important for your
http GEThttp PUT eventing via asynchronous http GET (ajax, [webhooks] style)REST emulation on GET only interfacesHTTP cache control
Integrationcan be used together w/ existing stuffSimple REST style discovery and communication proxy
content negotiation (w-i-p)xmljsonhtmlbinary XML (e.g. EXI)
it helps us a lot…
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Some outlookMore work on efficient p2p networking
TelehashPubsubhububMulti-tier architecture
clickscript.ch (thanks Lukas)Made first contact saving clickscript programsdownloadable code (see Fielding 2000)execute on uBox!
as soon things are reorganized at KeioSoftware release Deployable distribution (vmware_image/app engine/cloud)
