The document presents an ad-hoc smart gateway platform for the Web of Things, highlighting its potential in local communications, context-awareness challenges, and the dynamic provisioning of context plug-ins through the 'Dynamix' framework. It outlines the implementation of various plug-ins that enhance browser-based applications and facilitate interaction with devices, such as media playback and sensor integration. The presentation concludes with an invitation for community involvement in plug-in and app development.

1. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
An Ad-hoc Smart Gateway Platform for
the Web of Things
Darren Carlson1
, Bashar Altakrouri2
and Andreas Schrader2
1
Felicitous Computing Institute / National University of Singapore
2
Ambient Computing Group / University of Luebeck
This presentation includes graphics from the Crystal Project, which is released under the LGPL license.

2. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Motivation 1/2
Local Link Communications
Locked
Web Proxy
Web-proxied
Devices
Locked
Web Proxy
Dual-mode
Devices
Wireless
Sensors
INTERNET
WLAN, PAN
Networked Media
Devices
Sensor/Actor
Networks
Non-Web Non-Web, Prop. I/OProp. I/O Prop. I/O, Web locked Web locked

3. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Motivation 2/2
DLNA
Projector
Local Media
Server
CDNs
Router
Internet
Local link
Streaming
Servers
Nexus 7
Browser-based Web App Media Center
Laptop
Web
Browser
Apple
TV

4. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Context-awareness Challenges
4
Social Proximity
and Networks
Advanced Context Sensing and Actuations
User
Activity
Unproxied
Sensor Networks
Biotelemetry
Data
Indoor
Positioning
Others…
Ad-hoc
Interactions
External
Sensors
Sensor
Fusion
Browser-based Web Apps Can’t see the Internet of Things
IoT

5. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Introducing Ambient Dynamix
5
Dynamix adapts the
user’s device to the
environment using
plug-ins
Dynamix provides
simple means for
apps to request
context support
Dynamix is a plug-and-play context framework that helps applications sense and adapt to
the user’s continuously evolving situation and requirements
Community-based approach with 3rd
party API support
Plug-ins are provisioned
to the device at runtime
(network or file system)
Includes a scalable
infrastructure for
sharing plug-ins
Domain experts
create context
plug-ins

6. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Ambient Dynamix Overview (1/2)
6
Context domain expertise is
packaged into plug-ins
Plug-ins are dynamically
provisioned at runtime
A Dynamix app
requests context
support

7. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Ambient Dynamix Overview (2/2)
77
Browser-based Apps
Dynamix WebDynamix Web
Web Server
Dynamix Plug-in
Repository
Plug-ins
HTML, CSS,
JavaScript
Dynamix Web Extension
Browser
Based!
Context-aware
Web apps

8. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Example Dynamix Plug-ins
Context Plug-in
Power-aware Location, NFC, Beacon, Orientation, and Photodetector Plug-ins
ArtNet Plug-in (ad-hoc discovery/control of DMX automation equipment)
Acoustic Fingerprint Plug-in (Native Code Integration)
Speech Recognition Plug-in
Sound Pressure Level Plug-in (Ambient Sound Detector)
Sleep State Plug-in (Zeo Mobile)
Heart-rate Biotelemetry Plug-in (Zephyr Sensors)
OpenSocial Profile Data with Sensor-network Monitoring Plug-in (SmartAssist)
Barcode Scanner Plug-in (ZXing port)
Ambient Media Device Discovery and Control (UPnP & AirPlay)
Weight and BMI Measurement Plug-in (Supports Withings Wireless Scales)
Pedometer with Step Force Plug-in 8
Many more plug-ins in development!Many more plug-ins in development!

9. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Dynamix Device
Towards an Ad-hoc Smart Gateway Platform 1/2
9
Ambient Media
Plug-in
Unified Interface (RTSP-based)
Addressing: DHCP/IPv4LL
Discovery: SSDP
Description: XML
Control: XML/SOAP
Addressing: DHCP/IPv4LL
Discovery: mDNS/DNS-SD
Description: DNS SRV, TXT,
PTR
Control: REST
Service Protocol Domain 1 Service Protocol Domain 2
Runtime Installation
Web app Support
Ad-hoc Protocol
Gateway

10. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Towards an Ad-hoc Smart Gateway Platform 2/2
10
UPnP
Device
AirPlay
Device
Device (AirPlay):
97069172aa702ca8f0
9ba68715cfcb90f
Device (AirPlay):
97069172aa702ca8f0
9ba68715cfcb90f
Play URI: http://test.com/image.jpg
Target Device (AirPlay):
97069172aa702ca8f09ba68715cfcb90f
Play URI: http://test.com/image.jpg
Target Device (AirPlay):
97069172aa702ca8f09ba68715cfcb90f
Device (UPnP):
a4a4960f401821f31c0
6813ba3d09b78
Device (UPnP):
a4a4960f401821f31c0
6813ba3d09b78
Request Routing
97069172aa702ca8f09ba687
15cfcb90f
Protocol-specific
Request Handling
Unified Interface
Media
Playback
Future Work:
Split Protocol
Support into
Multiple Plug-ins

11. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Enhanced Share to Screen Web Application
11
Dynamix Framework
Background Service
UPnP & Airplay Devices
Facebook
Servers
App Server
Plug-in
Repository
Web Content and
Image Content
Web Content and
Dynamix JavaScript
Dynamix Plug-ins:
Ambient Media
and ArtNet
Tapping Dims the Lights
& Displays Media on the
Selected Media Device
ArtNet Light System

12. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Demo Scenario and Testbed
12
Demo Scenario and Testbed

13. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Evaluation 1/3
13
CPU Performance During Dynamix Binding, Plug-in Installation and Plug-in Initialization

14. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Evaluation 2/3
14
Heap Performance During Dynamix Binding, Plug-in Installation and Plug-in Initialization

15. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Evaluation 3/3
15
Overview of OSGi Memory Usage Before and
After Plug-in Installation and Initialization
Steady-state Performance (CPU & Heap)

16. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
Join Us!
16
Plug-in Development
App Development
Framework Development
Native Apps Web Apps
• Inter Plug-in Communications
• Mobile Security
• Client Interface
• Advanced Topics (Ambient Web)

17. Institut für Beispielsysteme | Forschungsgruppe Systembeispiele
Dr.-Ing. Darren Carlson | Senior Research Fellow | Felicitous Computing Institute
An Ad-hoc Smart Gateway Platform for the Web of Things (IEEE iThings 2013)
17
Thank You!
Q&A